SYSTEM AND METHOD OF USE FOR A USER INTERFACE DASHBOARD OF A HEATING, VENTILATION AND AIR CONDITIONING NETWORK

TECHNICAL FIELD

This application is directed, in general, to HVAC systems and, more specifically, to a user interface dashboard and installer interface dashboard for a distributed-architecture heating, ventilation and air conditioning (HVAC) network, and methods of use thereof.

BACKGROUND

Climate control systems, also referred to as HVAC systems (the two terms will be used herein interchangeably), are employed to regulate the temperature, humidity and air quality of premises, such as a residence, office, store, warehouse, vehicle, trailer, or commercial or entertainment venue. The most basic climate control systems either move air (typically by means of an air handler or, or more colloquially, a fan or blower), heat air (typically by means of a furnace) or cool air (typically by means of a compressor-driven refrigerant loop). A thermostat is typically included in the climate control systems to provide some level of automatic temperature control. In its simplest form, a thermostat turns the climate control system on or off as a function of a detected temperature. In a more complex form, a thermostat may take other factors, such as humidity or time, into consideration. Still, however, the operation of a thermostat remains turning the climate control system on or off in an attempt to maintain the temperature of the premises as close as possible to a desired setpoint temperature. Climate control systems as described above have been in wide use since the middle of the twentieth century.

SUMMARY

A first aspect provides an HVAC graphical interface dashboard. The dashboard includes a weather tab, wherein invoking the weather tab advances to a weather screen. The dashboard also includes an indoor humidity tab, wherein invoking the indoor humidity tab advances to a humidity screen which displays at least a current indoor humidity. The dashboard further includes an alerts tab, wherein invoking the alerts tab advances to an alerts screen. The dashboard also further includes a help tab, wherein invoking the help tab advances to a help screen that provides context sensitive help that presents at least one dialog box related to a function of a current screen. The dashboard yet also further includes an indoor settings tab, wherein invoking the indoor settings tab advances to an indoor settings screen which includes a current indoor temperature. The dashboard still further includes a programs tab, wherein invoking the programs tab advances to a programs screen which can program at least one of: a) a time, b) temperature setpoints and c) heating/cooling setpoints. The dashboard yet still further includes a home tab, wherein invoking the home tab advances to a home screen which provides a summary of indoor conditions. The indoor humidity tab can further be used to set current indoor humidity setpoints.

A second aspect provides an HVAC system. In an embodiment, the system includes a graphical interface dashboard and at least one coupled device. The dashboard includes a weather tab, wherein invoking the weather tab advances to a weather screen. The dashboard also includes an indoor humidity tab, wherein invoking the indoor humidity tab advances to a humidity screen which displays at least a current indoor humidity. The dashboard further includes an alerts tab, wherein invoking the alerts tab advances to an alerts screen. The dashboard further includes help tab, wherein invoking the help tab advances to a help screen that provides context sensitive help that presents at least one dialog box related to a function of a current screen. The dashboard yet also further includes an indoor settings tab, wherein invoking the indoor settings tab advances to an indoor settings screen which includes a current indoor temperature. The dashboard still further includes a programs tab, wherein invoking the programs tab advances to a programs screen which can program at least one of: a) a time, b) temperature setpoints and c) heating/cooling setpoints. The dashboard yet still further includes a home tab, wherein invoking the home tab advances to a home screen which provides a summary of indoor conditions. The second aspect further includes the at least one coupled device selected from the group including: a) an air handler, b) a furnace, c) an evaporator coil, d) a condenser coil and e) a compressor, wherein the at least one coupled device is viewable from at least one of the tabs. The indoor humidity tab can further be used to set current indoor humidity setpoints.

A third aspect provides a method for operating an HVAC interface having a plurality of tabs. In an embodiment, the method comprises providing a weather tab, wherein invoking the weather tab advances to a weather screen, providing an indoor humidity tab, wherein invoking the indoor humidity tab advances to a humidity screen which displays at least a current indoor humidity, wherein the indoor humidity tab can further be used to set current indoor humidity setpoints. The method further comprises providing an alerts tab, wherein invoking the alerts tab advances to an alerts screen and providing a help tab, wherein invoking the help tab advances to a help screen that provides context sensitive help that presents at least one dialog box related to a function of a current screen. The method still further comprises providing an indoor settings tab, wherein invoking the indoor settings tab advances to an indoor settings screen which includes a current indoor temperature, providing a programs tab, wherein invoking the programs tab advances to a programs screen which can program at least one of: a) time; b) temperature setpoints; c) heating/cooling setpoints. The method still further comprises providing a home tab, wherein invoking the home tab advances to a home screen which provides a summary of indoor conditions; and invoking one of the screens.

BRIEF DESCRIPTION

Reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a high-level block diagram of an HVAC system within which a device abstraction system and method may be contained or carried out;

FIG. 2 is a high-level block diagram of one embodiment of an HVAC data processing and communication network 200;

FIG. 3A is a diagram of a series of steps in an event sequence that depicts a device commissioning in an HVAC network having an active subnet controller;

FIG. 3B is a diagram of a series of steps that occur in relation to a commissioning of a subnet including an addressable unit;

FIG. 3C is a diagram of the above series of steps of FIG. 3B to be followed by a subnet controller to synchronize with a device of the HVAC system;

FIG. 3D is a high-level block diagram of one embodiment of a dashboard of a user interface for an HVAC system having a plurality of tabs, each tab configured to invoke one or more corresponding screens;

FIGS. 3E1-3E2 illustrate a table that discloses subject matter of screens correlated to tabs of FIG. 3D;

FIG. 4 is a high-level flow diagram of exemplary transitions, for both a user and an installer, between various screens corresponding to various tabs of the dashboard of FIG. 3 and various screens of an interface dashboard of FIG. 7, and an inter-relationship between FIG. 3D and FIG. 7;

FIG. 5 is an exemplary flow diagram of the user interface screens of FIG. 4, illustrated in more detail;

FIG. 5A illustrates one embodiment of exemplary screens that bold a selected item when that selected items is compared to other selected items in a list of a tab of the dashboard of FIG. 3D;

FIG. 5B illustrates, in one embodiment, a partial and complete locking of a screen of the dashboard of FIG. 3D;

FIG. 5C illustrates, in one embodiment, an employment of icons for various devices instead of text entries of the dashboard of FIG. 3D;

FIGS. 5D1-5D4 illustrate an employment of an embodiment of a motion detector for use with the dashboard of FIG. 3;

FIG. 5E illustrates a selection in an exemplary screen of the dashboard 300 of an item through an employment of a text item itself as a button to select the item to which the text item correlates;

FIG. 6A illustrates an exemplary employment of a humidify graphic to set humidity and de-humidity setpoints of a humidity screen of the humidity tab of FIG. 3D;

FIG. 6B illustrates an exemplary employment of screen selectable settings for setting a humidity point in a humidity screen of FIG. 3D that is dependent upon equipment installed in the HVAC system of FIG. 1;

FIGS. 7A1 and 7A2 illustrate an exemplary flow of various transitions of a help screen that arise as a result of a previous screen of FIG. 3D;

FIG. 8 illustrates exemplary screens of found equipment that appears in an indoor settings tab of FIG. 3D as dependent upon equipment being found in the HVAC system of FIG. 1;

FIG. 9A illustrates an exemplary plurality of program schedule setpoints displayed on one screen of a programs tab of FIG. 3;

FIG. 9B illustrates an exemplary persistent color inversion for a selected button until a next button press within the program screen of the programs tab of FIG. 3D;

FIG. 9C illustrates an exemplary deactivation of a time period within the program screen of FIG. 3D;

FIGS. 9D1 and 9D2 illustrate embodiments of a virtual analog clock in a program screen of FIG. 3D;

FIG. 9E illustrates one embodiment of a program screen that allows for a reset of at least one value related to the dashboard of FIG. 3D;

FIG. 9F illustrates one embodiment of a slider for setting a comfort point for a program screen of FIG. 3D;

FIGS. 9F1 and 9F2 illustrate exemplary flows of a transition of a program screen of the dashboard of FIG. 3D;

FIG. 10A illustrates an exemplary movement of a finger across a home screen to allow access to either an installer or a zone screen for an embodiment of the dashboard of FIG. 3D;

FIG. 10B illustrates an exemplary invocation of a plurality of dashboard tabs from a home screen of FIG. 3D;

FIGS. 11A1 and 11A2 illustrate embodiments of an installer dashboard that employs screens of FIG. 4;

FIG. 11B illustrates an exemplary display of minimum, maximum and default values for one embodiment of an installer screen of FIGS. 11A1 and 11A2 for a device connected to the HVAC system of FIG. 1;

FIG. 11C illustrates an exemplary underlining of default value for one embodiment of an installer screen of an installer screen of FIGS. 11A1 and 11A2;

FIG. 11D illustrates an exemplary moving a device icon for an item to be diagnosed to a right side of a diagnostic screen of an embodiment of the installer dashboard of an installer screen of FIGS. 11A1 and 11A2;

FIG. 12 illustrates an exemplary method for providing an interface for an HVAC system of FIG. 1; and

FIGS. 13A and 13B illustrate a subnet controller teaching a user interface how to interpret data on a network within bounds earlier defined as a user interface screen.

DETAILED DESCRIPTION

As stated above, conventional climate control systems have been in wide use since the middle of the twentieth century and have, to date, generally provided adequate temperature management. However, it has been realized that more sophisticated control and data acquisition and processing techniques may be developed and employed to improve the installation, operation and maintenance of climate control systems.

Described herein are various embodiments of an improved climate control, or HVAC, system in which at least multiple components thereof communicate with one another via a data bus. The communication allows identity, capability, status and operational data to be shared among the components. In some embodiments, the communication also allows commands to be given. As a result, the climate control system may be more flexible in terms of the number of different premises in which it may be installed, may be easier for an installer to install and configure, may be easier for a user to operate, may provide superior temperature and/or relative humidity (RH) control, may be more energy efficient, may be easier to diagnose and perhaps able to repair itself, may require fewer, simpler repairs and may have a longer service life.

FIG. 1 is a high-level block diagram of an HVAC system, generally designated 100. The HVAC system may be referred to herein simply as “system 100” for brevity. In one embodiment, the system 100 is configured to provide ventilation and therefore includes one or more air handlers 110. In an alternative embodiment, the ventilation includes one or more dampers 115 to control air flow through air ducts (not shown.) Such control may be used in various embodiments in which the system 100 is a zoned system. In the context of a zoned system 100, the one or more dampers 115 may be referred to as zone controllers 115. In an alternative embodiment, the system 100 is configured to provide heating and therefore includes one or more furnaces 120, typically associated with the one or more air handlers 110. In an alternative embodiment, the system 100 is configured to provide cooling and therefore includes one or more refrigerant evaporator coils 130, typically associated with the one or more air handlers 110. Such embodiment of the system 100 also includes one or more compressors 140 and associated condenser coils 142, which are typically associated in one or more so-called “outdoor units” 144. The one or more compressors 140 and associated condenser coils 142 are typically connected to an associated evaporator coil 130 by a refrigerant line 146. In an alternative embodiment, the system 100 is configured to provide ventilation, heating and cooling, in which case the one or more air handlers 110, furnaces 120 and evaporator coils 130 are associated with one or more “indoor units” 148, e.g., basement or attic units.

For convenience in the following discussion, a demand unit 155 is representative of the various units exemplified by the air handler 110, furnace 120, and compressor 140, and more generally includes an HVAC component that provides a service in response to control by the control unit 150. The service may be, e.g., heating, cooling, or air circulation. The demand unit 155 may provide more than one service, and if so, one service may be a primary service, and another service may be an ancillary service. For example, for a cooling unit that also circulates air, the primary service may be cooling, and the ancillary service may be air circulation (e.g. by a blower).

The demand unit 155 may have a maximum service capacity associated therewith. For example, the furnace 120 may have a maximum heat output (often expressed in terms of British Thermal Units (BTU) or Joules), or a blower may have a maximum airflow capacity (often expressed in terms of cubic feet per minute (CFM) or cubic meters per minute (CMM)). In some cases, the demand unit 155 may be configured to provide a primary or ancillary service in staged portions. For example, blower may have two or more motor speeds, with a CFM value associated with each motor speed.

One or more control units 150 control one or more of the one or more air handlers 110, the one or more furnaces 120 and/or the one or more compressors 140 to regulate the temperature of the premises, at least approximately. In various embodiments to be described, the one or more displays 170 provide additional functions such as operational, diagnostic and status message display and an attractive, visual interface that allows an installer, user or repairman to perform actions with respect to the system 100 more intuitively. Herein, the term “operator” will be used to refer collectively to any of the installer, the user and the repairman unless clarity is served by greater specificity.

One or more separate comfort sensors 160 may be associated with the one or more control units 150 and may also optionally be associated with one or more displays 170. The one or more comfort sensors 160 provide environmental data, e.g. temperature and/or humidity, to the one or more control units 150. An individual comfort sensor 160 may be physically located within a same enclosure or housing as the control unit 150. In such cases, the commonly housed comfort sensor 160 may be addressed independently. However, the one or more comfort sensors 160 may be located separately and physically remote from the one or more control units 150. Also, an individual control unit 150 may be physically located within a same enclosure or housing as a display 170. In such embodiments, the commonly housed control unit 150 and display 170 may each be addressed independently. However, one or more of the displays 170 may be located within the system 100 separately from and/or physically remote to the control units 150. The one or more displays 170 may include a screen such as a liquid crystal display (not shown).

Although not shown in FIG. 1, the HVAC system 100 may include one or more heat pumps in lieu of or in addition to the one or more furnaces 120, and one or more compressors 140. One or more humidifiers or dehumidifiers may be employed to increase or decrease humidity. One or more dampers may be used to modulate air flow through ducts (not shown). Air cleaners and lights may be used to reduce air pollution. Air quality sensors may be used to determine overall air quality.

Finally, a data bus 180, which in the illustrated embodiment is a serial bus, couples the one or more air handlers 110, the one or more furnaces 120, the one or more evaporator coils 130, the one or more condenser coils 142 and compressors 140, the one or more control units 150, the one or more remote comfort sensors 160 and the one or more displays 170 such that data may be communicated therebetween or thereamong. As will be understood, the data bus 180 may be advantageously employed to convey one or more alarm messages or one or more diagnostic messages.

FIG. 2 is a high-level block diagram of one embodiment of an HVAC data processing and communication network 200 that may be employed in the HVAC system 100 of FIG. 1. One or more air handler controllers (“AHCs”) 210 may be associated with the one or more air handlers 110 of FIG. 1. One or more integrated furnace controllers (“IFCs”) 220 may be associated with the one or more furnaces 120. One or more damper controller modules 215, also referred to herein as a zone controller module 215, may be associated with the one or more dampers 114 the interface the one or more dampers to the data bus 180. One or more unitary controllers 225 may be associated with one or more evaporator coils 130 and one or more condenser coils 142 and compressors 140 of FIG. 1. The network 200 includes an active subnet controller (“aSC”) 230a and an inactive subnet controller (“iSC”) 230i. The aSC 230a is responsible for configuring and monitoring the system 100 and for implementation of heating, cooling, air quality, ventilation or any other functional algorithms therein. Two or more aSCs 230a may also be employed to divide the network 200 into subnetworks, or subnets, simplifying network configuration, communication and control. The iSC 230i is a subnet controller that does not actively control the network 200. In some embodiments, the iSC 230i listens to all messages passed over the data bus 180, and updates its internal memory to match that of the aSC 230a. In this manner, the iSC 230i may backup parameters stored by the aSC 230a, and may be used as an active subnet controller if the aSC 230a malfunctions. Typically there is only one aSC 230a in a subnet, but there may be multiple iSCs therein, or no iSC at all. Herein, where the distinction between an active or a passive SC is not germane the subnet controller is referred to generally as an SC 230.

A user interface (“UI”) 240 provides a means by which an operator may communicate with the remainder of the network 200. In an alternative embodiment, a user interface/gateway (UI/G) 250 provides a means by which a remote operator or remote equipment may communicate with the remainder of the network 200. Such a remote operator or equipment is referred to generally as a remote entity. A comfort sensor interface 260, referred to herein after simply as a comfort sensor, may provide an interface between the data bus 180 and each of the one or more comfort sensors 160.

Each of the components 210, 220, 225, 230a, 230i, 240, 250, 260 may include a general interface device configured to interface to the data bus 180, as described below. (For ease of description any of the networked components, e.g., the components 210, 220, 225, 230a, 230i, 240, 250, 260, may be referred to generally herein as a device 290. In other words, the device 290 of FIG. 2 is a proxy for any of a furnace, a heat pump, a subnet controller, etc, and that device's associated interface means.) The data bus 180 in some embodiments is implemented using the Bosch CAN (Controller Area Network) specification, revision 2, and may be synonymously referred to herein as a residential serial bus (“RSBus”) 180. The data bus 180 provides communication between or among the aforementioned elements of the network 200. It should be understood that the use of the term “residential” is nonlimiting; the network 200 may be employed in any premises whatsoever, fixed or mobile. In wireless embodiments, the data bus 180 may be implemented, e.g., using Bluetooth™ or a similar wireless standard.

Generally, the network 200 allows for the remote comfort sensors 160, the controller 150, and user display 165 and/or remote user displays 170 to operate independently as separate logical units, and can be located in separate locations within the network 200. This is unlike the prior art, wherein these functionalities were required to be located within a single physical and logical structure.

Turning now to FIG. 3A, illustrated is a diagram 300 of a series of steps that occur in relation to a commissioning of the unit 155. The diagram 300 includes an enter state 301, a device commissioning state 303, and an exit state 305. The HVAC system 100 can be described as being partitioned into a plurality of subnets, each subnet controlled by its own active subnet controller 230.

Device commissioning can generally be defined as setting operational parameters for a device in the network of the HVAC system, including its installation parameters. Generally, device commissioning 300 is used by the subnet controller 230 when it is active to: a) set operating “Installer Parameters” for a networked device, such as air handlers 110, (henceforth to be referred to collectively, for the sake of convenience, as the unit 155, although other devices are also contemplated), b) to load UI/Gs 240, 250 with names and settings of “Installer Parameters and Features” of the units 155, c) to configure replacement parts for the units 155, and d) to restore values of “Installer Parameters and Features” in units 155 if those “Parameters and Features” were lost due to memory corruption or any other event. Device commissioning is a process used in the HVAC system 100, either in a “configuration” mode or in a “verification” mode.

In the “configuration” mode, the unit 155 shares its information with the subnet controller 230a in an anticipation of being employable in the HVAC system 100, and an appropriate subnet. Generally, the commissioning process 300 provides a convenient way to change or restore functional parameters, both for the subnet controller 230a and the unit 155.

In both the “verification” mode and the “configuration” mode, the unit 155 is checked for memory errors or other configuration or programming errors. There are differences in device 260 behavior between the “configuration” mode and in the “verification” mode, to be detailed below.

The “subnet startup” mode programs the subnet controller 230 to be active. The “subnet startup” mode enables subnet communications, (i.e., communication within a subnet), and also deactivates a “link” sub-mode. A “link” mode may be generally defined as a mode that allows a number of subnets to work together on the same HVAC network 100, and that assigns subnet numbers for each subnet to allow this communication.

The “installer test” mode is employed when an installer installs and tests aspects and units 155 of the HVAC system 100. The “normal operations” mode is an ongoing operation of devices 260 of the HVAC system 100 in a normal use.

More specifically, the device commissioning state machine 300 can be employed with: a) the “configuration” mode, which is invoked when transitioning to the commissioning state from the “subnet startup mode” or “installer test” mode, or the “normal mode”, or b) a “verification” mode. The “verification” mode is invoked when transitioning to the commissioning state from the “subnet startup” mode.

The following describes an illustrative embodiment of a process of commissioning 300 the HVAC unit 155, first for a “commission” mode, and then for a “verification” mode. The process of commissioning differs from a “subnet startup,” in that commissioning requires that the network configuration, including configuration and activation of subnet controllers 230, has already been completed before the commissioning 300 of the device 260 can start. Please note that there can be more than one subnet controller 230 on a subnet, but only subnet controller 230a is active at any one time.

In one embodiment, in order to enter into the state 320 of the process 300 in the “configuration” mode, the unit 155 receives either: a) an “aSC” (‘active subnet controller’) Device Assignment message”, having “Assigned State” bits set to “Commissioning”; or b) a receipt of an “aSC Change State” message, with “New aSC State” bits set to “Commissioning,” from the active subnet controller 230. For both “configuration” and “verification” modes, an “aSC Device Assignment” message can be generally regarded as a message that assigns the unit 155 to a particular active subnet controller 230a. For both “configuration” and “verification” modes, an “aSC Change State” message can be generally regarded as a message that starts and ends employment of the commissioning state diagram 300 for the devices 110.

In one embodiment, in the state 320 in the configuration mode, all units 155 respond to the “aSC Device Assignment” message with their respective “Device Status” messages, indicating that the units 155 are now in commissioning process 300 due to their response to this previous message. For both “configuration” and “verification” modes, the “Device Status” message can be generally defined as message that informs the active subnet controller 230a of what actions are being taken by the unit 155 at a given time.

However, alternatively in other embodiments, in the state 320 in the “configuration” mode, if the units 155 are instead busy, as indicated by “aSC Acknowledge” bits of the “Device Status” message sent to the subnet controller 230a set as a “Control Busy,” the active subnet controller 230a waits for the busy units 155 to clear their “aSC Acknowledge” bits before proceeding with further elements of the Commissioning 320 process. The units 155 then resend their “Device Status” messages as soon as they are no longer busy.

From this point on, all units 155 send their “Device Status” messages periodically and on any status change, both during and after the commissioning 300. If the unit 155 does not clear its “aSC Acknowledge” bits within a minute, the active subnet controller 230a sends an “Unresponsive Device2” alarm for each such unit 155. If in “configuration” mode, the active subnet controller 230a remains in the waiting mode indefinitely, until the unit 155 responds correctly, or the subnet is reset manually or after a timeout is reached. In “verification” mode the active subnet controller 230a proceeds further to exit the state.

In the “configuration” mode, each unit 155 remembers all of its optional sensors that are currently attached to it. Furthermore, each unit 155 may store a local copy in its non-volatile memory (“NVM”) of all any other unit features that it is dependent on. A unit 155 feature can be generally defined as any datum that is fixed and cannot be changed by the installer, serviceman or the home owner. Changing of a “Feature” value normally involves reprogramming of the units 155 firmware.

In at least some embodiments, a feature is something that is fixed value, that is hard-wired into a device. In other words, no installer or home owner can change it. Features are programmed into the unit 155 during a manufacturing or an assembly process. Features can be recovered in a home, during a Data non-volatile memory (“NVM”) recovery substate of Commissioning state only—the recovery substate happens automatically and without installer or user intervention. In a further embodiment, parameters can be changed by the installers only. In a yet further embodiment, the network 200 of the HVAC system 100 employs “variables”—those can be changed by the installers and also the home owners.

In some embodiments, a “Parameter List” is normally a Feature that contains a special list of specific parameters included in the unit 155. Parameter values can be changed, and their state can be changed also (from enabled to disabled and vice-versa), but their presence is set once and for all in a given firmware version. Therefore, a list of Parameters (not their values) is also fixed, and is thus treated as a “Feature.”

However, although elements of the “configuration” mode commissioning and “verification” mode commissioning are similar, when the active subnet controller 230 is in “verification” mode instead of in “configuration” mode, the active subnet controller 230a can exit commissioning 300 regardless of the value of the alarms of the units 155. However, alternatively, if the active subnet controller 230a is in “configuration” mode, the active subnet controller 230a will not exit from its commissioning state 300 for as long as at least one unit's 155 “aSC Acknowledge” flags are set to “Control Busy.” In one embodiment of the “verification” mode, the active subnet controller 230a timeouts the installation and resets the subnet to default parameters.

In the “verification” mode, assuming the unit 155 operates with a non-corrupted (original or restored copy) NVM, each unit 155 checks any of its attached sensors to see if they match with the parameters that were present in a most recent configuration of the unit 155. In some embodiments, alarms are generated by the unit 155 for missing or malfunctioning sensors as soon as the faulty condition is detected, to be employed by the user interfaces and gateways present on the subnet to notify the installer or homeowner of the encountered problem. The unexpected absence of certain sensors may inhibit the operation of the unit 155 or the subnet. This is normally manifested by the signaling of the appropriate Service Bits in the Device Status message used by the active subnet controller 230a, to determine the operational viability or health of the subnet's systems.

In some embodiments, the device commissioning process 300 then transitions into a state 330, and then ends, upon either: a) the last unit 155 receiving all of unit 155 parameters that it is dependent on, when in “verification” mode; or b) upon a request by a user, when in “configuration” mode. The active subnet controller 230 then proceeds to ensure that no subnet unit 155 has its “aSC Acknowledge” flag set to a “Control Busy” state. The “aSC Acknowledge” flag not being set indicates that all of a non-volatile memory of a given unit 155 had been written to with the necessary parameters. If no “Control Busy” state is detected, the active subnet controller 230a then issues the “aSC Change State” message, which forces the unit 155 from a commissioning state to a non-commissioning state, in either a “configuration” or a “verification” mode.

In some embodiments, when the unit 155 in the process 300 fails its NVM data integrity check in an “NVM Check State,” and the active subnet controller is unable to perform NVM Recovery, the unit 155 instead employs its default data stored in its non-volatile (Flash) memory and/or uses default calculations to initialize the data dependent on other devices in the system. The other device data to be used for commissioning could have been obtained in either the “verification” or “configuration” mode. For data or other parameters that were not transferred or generated as part of that commissioning 300 session, default values are used.

In one embodiment, upon a detection of a system configuration error, such as a missing device whose features or parameters the unit 155 depends upon, it uses the locally stored copy of the other device's features that it depends upon, and ignores any potential feature value conflicts. In another embodiment, the unit 155 uses the locally stored copy of other parameters of the unit 155 that it depends on and ignores any potential dependent parameter value conflicts. In other words, the unit 155 employs a first installed parameter as a template for a second installed parameter on a second device. In a third embodiment, the unit 155 will change its parameter or feature values only if explicitly instructed by the active subnet controller 230 or the UI/G 240, 250.

Turning now to FIG. 3B, illustrated is an HVAC device state machine 310 illustrated for a subnet, including the unit 155, in more detail. Solid lines indicate normal state transitions when the subnet is transitioning from one state to another state, dashed lines indicate a subroutine call and red lines, alternating dotted and dashed lines indicate unexpected yet valid transitions. All states other than state 326 represent device states, and the state 326 represents a message handling routine.

As is illustrated in the present embodiment, a reset state 312 of a subnet advances to a NVR CRC check 316 for a given device (such as unit 155). If the device fails the test, the device advances to a device hard disable 314. If the device passes, however, then in subnet startup 320, various features and parameters of the unit 155 are shared with the subnet. Then, in substate 324, device commissioning as described in FIG. 3A occurs. This then leads to an installer test sub-mode 328. This, in turn, then leads to a link mode start-up 330, as described above. Finally, then in a step 334, normal system operation occurs, although system can reset to state 312 or have error messages in a state 326.

In a further embodiment, during the NVM CRC check 316, the state machine 310 can advance to a NVM programming state 318. This can occur due to such factors as a failure of a non-volatile memory, or an initial programming of the NVM. In a yet further embodiment, each of these units 155 is programmed to deal with one form of a diagnostic message regarding system errors in a state 326, and from there to testing the device 160 itself in an OEM test mode 332.

Turning now to FIG. 3C, illustrated is a state flow diagram 340 for the active subnet controller 230a in relation to the unit 155. Generally, is the responsibility of the active subnet controller 230a to implement proper state transitions. The other units 155 follow the explicit direction of the aSC 230a for all valid transactions. These state diagrams are included to help ensure that a state of the unit 155 is the same as the subnet controller. The SC 230a is responsible for device synchronization. If the unit 155 is detected out of synch with the rest of the system, the aSC 230a, in some embodiments, immediately tries to bring the unit 155 to the current system state, if possible.

If an addressable unit 155 is detected in subnet startup 342, the subnet controller 230a applies asynchronous startup rules, which generally pertain to how many parameters are to be passed between device 160 and the active subnet controller 230.

If an addressable unit 155 is detected in commissioning 345, installer test 346, link mode 347 or normal operation 348 substates, the unit 155, in some embodiments, is brought to the current state via a resend of an “aSC Change State” message, which involves transitioning from a first current aSC state to a second current aSC state.

In some embodiments, if a unit 155 is detected in OEM Test or Soft Disabled state, the unit 155 shall be reset by the active subnet controller 230a in a step 342. If a unit 155 is detected in “Hard Disabled” or “NVM Programming” state, the active subnet controller 230a assumes that it is not available on the subnet

In a further embodiment, inactive subnet controllers 230i are required to keep the most up to date subnet and HVAC system configuration information. Inactive subnet controllers 230i listen to all UI/G and aSC messages and continuously update their non-volatile memory to attempt to be as consistent as possible with the settings stored in active subnet controller 230.

Aspects of Interface

FIG. 3D illustrates an exemplary HVAC user interface dashboard (“dashboard”) 350 to the user interface 240 to both read and program the subnet controllers 230a, 230i and other elements of the HVAC network 200 of the HVAC system 100. The dashboard 350 can be included within the displays 170.

In the illustrated embodiment, the dashboard 350 includes a weather tab 355, an indoor humidity tab 360, an alerts tab 365, a help tab 370, an indoor settings tab 375, a program schedule tab 380, a zones tab 385 and home tab 390, each of which invokes its own corresponding user or installer interface screen or screens. There can be some redundancy of information or functionality between screens corresponding to the different tabs, but each tab includes screens that contain at least some information or functionality that is not found in any other single tab. Furthermore, each tab can be either invoked by a user, such as through touching a tab, or each tab can be invoked remotely, such as by an installer.

Reviewing FIG. 3D with aid of FIGS. 3Ei and 3Eii, generally, pressing the weather tab 355 advances a user to an exemplary weather screen. The weather screen displays current outdoor weather if a current outdoor temperature and/or humidity is available.

Pressing the exemplary indoor humidity tab 360 advances a user to an indoor humidity screen. The humidity screen allows for the user to change a system dehumidify mode. Dehumidify mode selections include: humidify, dehumidify, humidify and dehumidify and off. A user can cycle through these selections.

The exemplary indoor humidity screen allows a user to view both absolute and relative humidity, and also to set “setpoints” for absolute and relative humidity (i.e., points at which a humidifier or dehumidifier is turned on and off). In one embodiment, relative humidity (“RH”) can range from 15% to 45% RH and can be either programmed or humidification on demand. Similarly, dehumidification can be from 40-40% RH and can be either programmed dehumidification on demand.

An indoor humidity screen also allows a user to view humidification and dehumidification comfort zones. In this context, a comfort zone can be generally defined as a zone of a HVAC system that has separate setpoints for temperature and humidity, etc.

Pressing the exemplary alerts tab 365 advances a user to an alerts screen. The alerts screen allows a user to obtain dealer information about currently active alerts and set the dashboard 300 to remind a user later for service alerts. In some embodiments, a select button of the alerts screen of the tab 365 allows the user to obtain a dealer's contact information. The select button allows the user to clear an active alert (all service alerts and specified critical alerts, and also allows the user to clear an active alert (service or critical). In some embodiments, when a “new service/critical alert” occurs or “remind later” extension time expires, the dashboard 350 floods any current screen with an alert, in other words, the alert overlays any other screen.

An alarm message displays alerts visible to the user, whereas all alerts are visible to the installer. The installer can learn of these alerts either viewing the alerts tab 365 of the dashboard 360 in person or remotely through a message conveyed through the user interface/gateway 250.

Pressing the exemplary help tab 370 advances a user to a help screen. The help screen can include context sensitive help, an option to clear a screen and user system configuration. The context sensitive help presents dialog boxes relating to a current screen's functions, and user system configurations can provide access to all user local settings (i.e., any setting that does not require an installer to make a change, but can instead by made by a user.)

In some embodiments, there can be a time-based notification of consumables in the help screen, either for the user or for an installer. These consumables can include, in some embodiments: media filters, UV bulbs and humidifier pads. All information concerning consumables can be accessible by both the installer as well as the user via the help screen. In some embodiments, a user and installer can enable and manually change the time settings for any timer of the HVAC system 100 through the help screen. Similarly, a maintenance reminder can be accessible by the installer, as well as the user, via the help screen.

Pressing the exemplary indoor settings tab 375 advances a user to an indoor settings screen. In one embodiment, the indoor settings screen display indoor temperature measurement and temperature settings. The indoor settings also display the system mode settings and fan mode settings. In one embodiment, system mode selections include: heat, cool, heat and cool, off and emergency heat. Fan mode selections include: automatic, on and circulate. The dashboard 350 allows the user to change the system mode and the fan mode through cycling through various choices.

In one embodiment, equipment employed within the system mode dictates which system modes (heat, cool, heat & cool, emergency heat) are visible. For example, a “Heat & Cool” selection of the system mode is visible only when both heating equipment and cooling equipment are present in the system. Typically, the system mode selection of “Off” is always visible.

The indoor temperature settings screen also allows a user to change current temperature setpoints, (i.e., points at which a heater or air conditioner is turned on and off) unless this would override a programmed setting, in which case, a hold occurs until an end of the programmed time occurs and the new setpoints become the operating values of the HVAC system 100.

The exemplary dashboard 350 also allows its system mode settings and fan mode settings to be obtained and changed via RSBus devices (e.g. User Interface/Gateway 250 coupled to the bus 180) remotely. If the dashboard 350 is requested, remotely or locally, to change the system mode to an invalid setting, the system mode is not changed.

Furthermore, the indoor temperature settings tab 375 allows for a user/installer to view all system information and comfort settings (i.e., temperature and humidity) and allow editing of all current settings, as well as fan mode settings. The indoor settings tab 375 allows the fan mode (on, auto, circulate) to be obtained and changed via the RSBus (e.g., via bus 180 and user interface/gateway 250.)

Pressing the exemplary program 380 tab advances a user to a programs schedule screen. The programs schedule screen allows for viewing/editing/enabling future program schedule events (e.g., temperature setpoints, system modes and fan modes) in the HVAC system 100. The program screen allows a programming of event times, temperature setpoints and fan mode for each pre-defined period. A program schedule does not run when the system mode is set to “off.”

In one embodiment, the program screen is seven-day programmable with the ability to select multiple days for programming. In one embodiment, the program screen is capable of programming up to four (4) events per 24-hour period. In one embodiment, program schedules for temperature setpoints are programmed for a seven day schedule, up to four periods per day and are stored in non-volatile memory. In one embodiment, program schedule events can be set in 15-minute increments of time. The scheduled events execute in order based on time of day. In one embodiment, the user interface 350 provides the capability to enable/disable any period of any given day by pressing the corresponding time button for two seconds.

Generally, if a mode changes, such as a fan mode change, is made within the program schedule screen is made while a program schedule of the programs tab 380 is actively executing, a program schedule “hold” mode is invoked until a next program schedule event, at which time the new setpoint is acted upon. If a temperature setpoint change is made while the program schedule of the programs tab 380 is not active, the dashboard 350 updates the display with the new setpoint and acts upon this new setpoint.

Generally, the exemplary dashboard 350 allows its programmed temperature setpoints (heat, cool) and modes to be obtained/changed via RSBus devices (e.g. User Interface/Gateway 250 over the bus 180) remotely. If the dashboard 350 is requested (remotely or locally) to change either setpoint, either temperature or humidity, to a setting beyond the setpoint limits, the setpoint is not changed. If the dashboard 350 is requested remotely or locally to change the fan mode or system mode to an invalid setting, the fan mode or system mode is not changed.

In some embodiments, the cooling setpoint is shown only when cooling equipment is present in the system. Likewise, the heating setpoint is shown only when heating equipment is present in the system. The dashboard 350 may not allow two program scheduled events to begin at the same time. In other words, there can be only one setpoint for either a humidity or a temperature for a given time period—one for each.

In one embodiment, up and down arrows of a program screen of the programs tab 380 allows the user to edit a selected box information. A save button allows the user to save changes to the program schedule. A cancel button allows the user to quit the program schedule edit screen without saving changes. A back button returns the user to the program schedule day selection screen. (Not illustrated.)

In some embodiments, pressing the zones tab 385 advances a user to a zone screen which, in one embodiment, is accessible only by an installer with a proper key. Generally, the zone screen deals with information that is pertinent to programming HVAC equipment for various environmental “zones” within the HVAC system (e.g., living room, bedroom, kitchen, etc.) The zone screen therefore advises the user to contact the manufacture for more information regarding the zone screen. The zones tab 385 then either advances to a home screen of the tab 380 or back to the overall user dashboard 300.

Generally, the home screen of the home tab 390 includes a summary of indoor environmental conditions for a user. A home screen indicates a status of the program schedule (ON, OFF). The home screen indicates temperature control status (heating, cooling, off, waiting) as well as humidity control (humidifying, dehumidifying, waiting) of the HVAC system 100. In one embodiment, when a given system is set to “off,” only “system is off” is displayed in the home screen.

In some embodiments, the dashboard 350 returns to the home screen after 30 seconds has elapsed since a last screen or tab press, including from any other tab of the dashboard 350. In some embodiments, after a 30 second period of inactivity, any changes made to a screen requiring an active “set” or “save” button press are lost. The dashboard 350 instead returns to the home screen. In some further embodiments, after a user-selectable time period of inactivity, an initial screen press, even upon a tab, causes only a backlight to activate with the home screen as the initial screen shown. The home tab 390 can include a series of screens that are navigable from the home screen via an icon press.

Although not illustrated in FIG. 3D, an installer dashboard including installer screens can also be accessed through the home screen by an installer with a proper key. Generally, the installer screens allow for an installation and configuration of various pieces of equipment in the HVAC system 100. The installer screens can also enable various default values as parameters of operation.

In some embodiments, when a button of a screen of the dashboard 300 is held, the dashboard 350 initially displays an update to the value being changed at a rate of change of 0.5 seconds. After a button hold of 3 seconds, the rate of change is increased to 0.25 seconds.

The user dashboard 350 can itself be a color and touch-screen. The dashboard 350 can include a dynamic full color dot matrix LCD display. A touch pad may be built into/over the dashboard 300. Typically, a maximum delay between any key press and display feedback (indication by selected button, screen change, etc.) is 0.2 seconds.

FIG. 4 illustrates a high-level flow diagram 400 of exemplary transitions, for both user and installer, between user interface screens corresponding to various tabs of the exemplary dashboard of FIG. 3D and various exemplary interface screens of an interface dashboard of FIGS. 11A1 and 11A2.

The exemplary flow 400 has an installer screen flow 401 and a user screen flow 451. The installer screen flow 401 of the dashboard 350 provides access to all installer screens (including subnet start up, configuration, commissioning, installer tests, alerts and diagnostics). The screens of the user screen flow 451 are accessible through the tabs 355-390 of FIG. 3D, with the exception of a new alert screen 452, which the dashboard 350 generates upon a new alert. In a further embodiment, the dashboard 350 allows each screen of the flow 400 to be invoked remotely by a user and/or installer via the User Interface/Gateway 250.

Upon power-up of the HVAC system 100, an installation screen 402 of the installer flow 401 appears. Unless an installer inputs a correct key code within a given time period, the flow 400 transitions to a home screen 450. However, if the installer inputs the correct key, an installer screen corresponding to the installer test tab 404 appears. The installer can then install and configure various devices in the HVAC system 100. After installation, the installer flow 401 then advances to the home screen 450.

In one embodiment, the installer flow 401 includes a series of screens that are accessible from the home screen 410 via both a) an icon press; and then b) a correct entry of a correct key sequence. In one embodiment, pressing a dealer logo, such as a “Lennox™” logo, on the home screen 450 for 5 seconds allows an installer to execute system startup processes, as well as view/edit the alerts and diagnostics via the installer configuration screens of the flow 401.

Generally, the home screen 450 provides a high level overview of the current indoor conditions. The home screen 450, in some embodiments, the home screen 450 displays the indoor temperature, indoor relative humidity status, outdoor temperature and system status (e.g. heating, cooling, off, humidifying, dehumidifying, etc.) of the HVAC system 100.

From the home screen 450, a warning screen 412 for an installer can be generated by the dashboard 350. This warning screen 412 can be conveyed to an installer either directly when installer is present, or through a remote communication, such as over the bus 180 through gateway 250, and then perhaps through the Internet to the installer. The warning screen 412 generally states that there is a type of problem that should be addressed by an installer, but may not give details all details. Once the warning screen 412 is acknowledged by an installer, an alerts tab 408 has a screen that is the default screen for the dashboard 300.

From the warning screen 412, the installer can also advance to either a diagnostics screen of a diagnostics tab 406, a contextual help screen of the installer help tab 414, the installer screen of the installer set-up tab 402, or an installer screen of the installer test tab 404.

In some embodiments, for a user, from the home screen 450, a new notification 452 can arise upon a first detection by the HVAC 100 of an alert. Similarly, the alerts tab 365 can be used to invoke and view an alerts screen. In one embodiment, the alerts tab 365 can be used to access every other tab in the dashboard 350.

In the illustrated exemplary flow 400, the home screen 450 transitions to either the alerts tab 365 if an active alert exists or the indoor settings tab 350. From the indoor settings tab 375, all other user tabs are also accessible. These include the weather tab 355, the indoor humidity tab 360, the alerts tab 365, the help tab 370, the programs tab 380 and the zones tab 385. Please note that, in some embodiments, the zones tab 385 can transition to the home screen 450, and the zones of the zones tab 385 are typically set by an installer of the HVAC 100.

Regarding the alerts screen 452, in one embodiment, if the dashboard 3500 is displaying a popup alert at the time when another alert (to be displayed to the user) occurs, the dashboard 300 continues to display the current alert screen 452. When a current alert has been addressed, the dashboard then overwrites the screen with the newest alert. If multiple popup alerts exist simultaneously, the dashboard 350 displays each (in order of occurrence—timestamp) one-by-one after the previous new alert is addressed. There is not a time-out for a new alert flooding the screen. The new alert remains on the screen of the dashboard 350 until addressed by the user/installer.

Turning briefly now to FIG. 5, illustrated are exemplary corresponding screens of the tabs of FIGS. 3D and 4 illustrated in more detail. The weather tab 355 can display weather info when available. The indoor humidity tab 360 enables a user to set humidity modes and setpoints. The alerts tab 365 can display alert info. The home screen 450 can interact with the other illustrated tabs. The indoor settings tab 375 can set display and set temperature conditions and settings (setpoints), overall system mode and fan mode. The programs tab 380 enables a user to program various times. The zones tab 385 forwards an admonition to the user to request more information from the manufacturer, and then transfers back to the home screen 450.

Generally, FIGS. 5A-5D2, to be discussed below, illustrate aspects of the present disclosure that are applicable to at least some, and can be to all, of the user screens of FIG. 3D and FIG. 4.

Turning now to FIG. 5A, illustrated is an embodiment of the screen 500 of the dashboard 350 that bolds a selected item 501, 503, 505, 507 relative to other selected items in a list in the dashboard 350. The user can highlight a selected item in white; the other selected items are in grey.

Turning now to FIG. 5B, illustrated is an embodiment of an unlocked screen mode 521, a partially locked screen mode 523, and a fully locked screen mode 525 of the dashboard 350. A partially locked screen 523 places a lock-pad icon 526 over a text 524 that states “press for more,” and also deactivates all buttons except up-down arrows 529. Partially locked mode has a limited functionality.

In one embodiment, the fully locked mode 525 deactivates all buttons and removes the up/down arrows from a screen. To unlock a partially locked screen 523 or a fully locked screen 525, a user presses and holds the lock-pad icon 524 for a selected period of time, such as five seconds. In one embodiment, a fully locked screen 525 can also occur due to a passage of a pre-amount selected of time. The partially locked or fully locked screen modes 523, 525 can display control parameters for an extended period of time

Turning to FIG. 5C, illustrated is an exemplary screen 530 of the dashboard 350 illustrating a display of discovered equipment in the HVAC 100. Generally, in prior art interfaces, a text list is used to inform a user/installer about found communicating devices in an HVAC system. However, in FIG. 5C, icons or pictures of equipment 531-535 are used instead to help a user/installer understand what devices and/or equipment is connected to the HVAC system 100. In the exemplary screen of FIG. 5C, each of the discovered device or equipment 531-555 has a graphical user interface (“GUI”) for employment by the installer, although other tabs of the dashboard 300 can also employ icons for found or discovered equipment.

Turning now to FIG. 5D1, illustrated is an exemplary embodiment of a dashboard 350 having a lighting system 551 including a) a screen 555 that needs a backlight to display information to b) a backlight 557 and c) a motion detector 559, wherein the backlight is turned on by the motion detector 559 upon a detection of motion within a selected range. The screen 555 can be an LCD screen.

Generally, the lighting system 551 allows a user to view indoor settings, without having to touch a button on the dashboard 300, through employment of the sensor 559 and the backlight 557. With one embodiment of system 551, a home owner can view indoor settings when passing by a dashboard 300, which activates the sensor 559 which then turns-on the backlight. This allows a viewer to view settings of the dashboard, although indoor, from a distance, as determined by the sensor 559. This can make for a convenient way for a user to view indoor settings when the backlight 557 is initially off, as it is switched on by the motion detector 559. Furthermore, the system 551 can conserve energy and screen 555 life when the backlight 557 is not on.

When the exemplary dashboard 350 is not being actively engaged by the user (i.e., not being touched through a touch-screen interface and no motion has been detected by the motion detector 559), the backlight 557 is off. The screen 555 is then perceived as substantially dark 560, and no information can be read by a user, as is illustrated in FIG. 5E2.

In the system 551, the motion detector 559 detects movement within a specified distance of the dashboard 350 and commands the backlight 557 to turn on, but otherwise does not allow the backlight 557 to turn on if no motion is detected. For example, in FIG. 5D3, the backlight is off because no movement, such as of a user 562, is detected within a movement detection zone 561, and the screen is dark 560.

However, once the movement is detected in the movement detection zone 561 by the motion detector 559, such as a movement of the user 562, then the dashboard 300 turns on the backlight 557 so that information can be read from the screen 551 of the dashboard 350, such as illustrated in FIG. 5D4. The user 562 may therefore be able to read the dashboard 300 data on screen 555 without having to walk up to the dashboard and touch the screen of the dashboard. This can also allow the user 562 to press the dashboard 300 one less time, which can prolong a touch-screen life of the dashboard 300. When the user 562 walks close enough to the motion detector 559 for the motion detector 559 to detect the user's movement within the movement detection zone 561, then the backlight 557 turns on and all buttons and tabs of the dashboard 300 is enabled. However, when the user 562 is out of range of the detection range 561, the system 551 again disables the backlight 557 and the various tabs, buttons, etc., and the screen is typically again dark 560, as illustrated in FIG. 5D4.

Turning now to FIG. 5E, illustrated is an exemplary flow of screens 561 of the dashboard 350. In the exemplary flow, an installer selects an item of the screen 561 of an installer screen through an employment of text 563, which itself can be a button to select the text. In other flows, the text can be used in other screens of the dashboard 350.

In a further embodiment, the dashboard 350 has a screensaver that activates after a selected amount of inactivity from a user. In this embodiment, the dashboard 350 allows a user to download an image for the dashboard 350 to display when it is idle. Thus, the dashboard 350 can become an equivalent of a digital photo-frame when its controls are not active. In one embodiment, through pressing anywhere on a touch-screen of the dashboard 350 dismisses the screensaver image and re-displays the dashboard 300 controls.

Turning now to FIG. 6A, an exemplary humidity graphic 601 can be used to set humidify and de-humidify setpoints. In humidity screens 617, 619 of the humidity tab 320, a humidity status and RH humidity are both displayed on a same screen 617 of the humidity tab 360. Generally, a user may not understand what XX % of humidity denotes on his or her dashboard 350. Therefore, this embodiment of the screens 617, 619 displays both the RH and also interprets the RH.

In a further embodiment, below 36% the humidity display 613 reads “INDOOR RH XX %—DRY,” actual values can be between 35%-37%). Above 49%, the display 613 reads “INDOOR RHXX %”—HUMID., actual value can be between 48% and 50%. Between 36% and 49% RH, the display reads “INDOOR RH XX %—NORMAL” or “INDOOR RH XX % OK”—actual values can be between 35% and 50%.

An exemplary indoor humidity graphic shows a single bar 602 with relative humidity (“RH”) being a calibrated item. A left side 603 of the bar 602 displays a current indoor RH level with the use of a triangle 605, and a right side 604 uses a triangle 607 to show where a current humidify or dehumidify setpoint currently is. Two up/down arrows 608 adjust a humidity setpoint, and a switch button 613 transitions a humidity screen to display either humidify comfort range setpoint or a de-humidify comfort range setpoint. In other words, a humidity screen can transition from the humidity screen 617 to a dehumidify screen 619.

Turning now to FIG. 6B, illustrated is an employment of one a plurality of exemplary humidity screens 631 of a humidity tab 360 of FIG. 3D that is dependent upon equipment installed in the HVAC system 100 of FIG. 1. In other words, if a given piece of equipment is not installed in the HVAC system 100, an indicia of that piece of equipment is not illustrated on the humidity screen of the humidity tab 360.

For example, the indoor humidity tab 360 can be dependent on humidifiers and cooling equipment. Without cooling, equipment, de-humidification is not an option. Furthermore, the indoor settings tab 375 is dependent on heating and cooling equipment, and so is the programs tab 360. Therefore, the dashboard 300 removes modes, system setting options, and control setpoints (humidity and temperature) based upon which pieces of equipment to be discovered during an “installation and set-up process” are not actually discovered. Therefore, if a given piece of humidification or dehumidification equipment is not present, it may not be displayed in the display of FIG. 6B.

For example, regarding the first row of the FIG. 6B, a first column 633 shows indoor humidity screens with all options and services available. A second column 635 of the first row shows screens based on heating only equipment installed and a humidifier installed. The third column 637 of the first row shows the humidity screen based on cooling-only equipment installed and no humidifier installed. A last column 639 of the first row shows the indoor humidity screen with only heating equipment installed and no humidifier installed. As is illustrated, equipment that is not available is not illustrated. In further embodiments, interface screens correlating to indoor settings tab 375 and programs tab 380 do not display indicia of devices not installed in the HVAC system 100, either.

In a further embodiment, the humidity tab 360 allows users to have and configure different humidity levels during different periods of a day. These periods could be a wake, leave, return and sleep period, for example. For an exemplary instance of use, a user can have 40% humidity level in the morning, and 45% humidity level at night in the same day. Additionally, users can have different humidity levels for different days or group of days. Some parts of the country can have changes in its humidity level throughout the day, so therefore users who reside in these areas can maintain their comfort inside of their homes by using this feature.

Turning now to FIG. 7A1, illustrated is an exemplary flow of various transitions of a help screen a help tab 370 of the dashboard 350 that are dependent upon or otherwise determined at least in part by a screen displayed before the help tab 370 is activated.

Generally, a purpose of interactive help for the HVAC 100 is for a user or installer to navigate throughout the dashboard 350 without the user or installer having to go find a manual and look up a particular function or dashboard 300 screen shot. Discussed below are an exemplary flow 710 and a flow 750, both to help accomplish this goal of navigation.

FIGS. 7A1 and 7A2, corresponding to exemplary flows 710 and 750, respectively, both allow a user to get help on current dashboard screens without changing his or her current dashboard 300 settings. A help interface can therefore be located in the dashboard 350, and the user/installer does not necessarily have to find or use an independent manual.

An approach of the exemplary flow 710 of FIG. 7A1 is directed towards dependent settings for help screen sequences. The flow 710 illustrates help screens that progress in a predetermined sequence depending on the screen shown before the help tab 370 is pressed. Generally, help is supposed to teach a user and not confuse them more; therefore, help in the flow 710 does not display information about possible settings that were not displayed on the screen before the help tab was pressed.

For example, the exemplary flow 710 displays 3 different screens 711, 712, 713 that could be displayed to a user before a help tab 340 is pressed. After the help tab 370 is pressed, the screen transitions to a row B of 710, but each screen progresses to it corresponding particular screen in row B 714, 715, 716, respectively, that contains information specific to the previous screen in row A. The help screens in row B contain a text box and arrows that give information about a particular area of the screen that was present before the help was invoked.

Pressing anywhere on a help screen of row B transitions the help screen to row C of flow 710. Row C shows only 1 screen, a screen 717. This particular screen 717 is used for all screens originating in row A, because row C is providing information about a common item for all screens in row A.

Touching the screen 717 transitions to a screen 718 in row D. This is yet another screen that displays common information for all the screens in row A. Row D is the last screen in the help sequence 710 and pressing the screen 717 of the dashboard 300 transitions back to the screen displayed before the help tab 340 was pressed.

Turning now to FIG. 7A2, in a further embodiment, help screens of the help tab 370 allows a user to adjust settings on a help screen without saving changes to the settings to the HVAC system 100. Generally, once the user exits a help screen, all the settings or screen changes returns to their previous state before the help tab 370 was pressed, which allows a user to experiment with settings of a screen without saving them to the HVAC system 100.

An exemplary screen 751 of the flow 750 of FIG. 7A2 is the screen displayed on the dashboard before a help tab 370 press. A screen 752 is the screen displayed immediately after a help tab 370 is pressed. A difference between screen 751 and 752 of flow 750 is a text box.

The text box on screen 752 gives a brief explanation about a current screen, and tells the user to touch an area of interest to get more information. Assuming that a user wants to know more about “current temp” and pressed in this area, for example, then the screen progresses to a screen 753 with a new text box listing information about “current temp.”

A screen 754 is shown after the “fan setting” area is touched. However, this area of the screen contains a select button. In one embodiment, pressing the select button changes the screen to a screen 755 with a new text box listing information about the new setting. The transition from screen 754 to screens 755 not only shows a new text box, but it also changed the highlighted setting from “on” to “circulate.” In one embodiment, the screen 755 transitions to a screen 756 if the system setting area is pressed, and the screen 756 transitions to a screen 757 if the select button is pressed. However, the screen 757 transitions back to the screen 751 of FIG. 7A2, the screen displayed on the dashboard before the help tab 340 press.

Turning now to FIG. 8, illustrated is a plurality of found equipment that appears in an indoor settings screen 831 of the indoor settings tab 350 of FIG. 3D as dependent upon equipment being found in the HVAC system 100 of FIG. 1, as discussed regarding the humidity screen 631 of FIG. 6B, above.

Regarding the second row of the FIG. 8, a first column 833 shows indoor humidity screens with all options and services available. A second column 835 of the second row shows screens based on heating only equipment installed and a humidifier installed. The third column 837 of the second row shows the humidity screen based on cooling-only equipment installed and no humidifier installed. A last column 839 of the second row shows the indoor humidity screen with only heating equipment installed and no humidifier installed. As is illustrated, equipment that is not available is not illustrated. Other rows of screens also display other equipment not being available for various tabs, including the humidity tab 360 and the programs tab 380.

Turning to FIG. 9A, illustrated is an exemplary program screen 910 of the programs tab 380 that displays all program time periods and programmed temperature setpoints for the programs tab 380. In this embodiment, all program schedule setpoints 912, 914, 916, 918 are displayed on one program screen 910. All time periods for a program schedule are displayed as well. In the illustrated embodiment of the screen 910 of the programs tab 380, time is listed first, then heat temperature, cool temperature, and fan settings are last. The screen 910 can be a 4×4 matrix with only one setpoint area/button being selectable at a time. In one embodiment, once a setpoint area is touched, the box turns an inverse of its current color. In the illustrated embodiment, up/down arrows 921 are used to adjust each setpoint/setting.

Turning now to FIG. 9B, illustrated is an exemplary flow 930 of program screens. The screens of the programs tab 380 include buttons 933 that turn an inverse color 971 as a selection and touch reaction. A screen 930 illustrates a program screen with a button 933 not being touched. A screen 934 illustrates a program screen with a button 935 being touched, and turning an inverse color. A screen 936 illustrates the button 935 staying an inverse color, and an arrow button 937 turning an inverse color. A screen 938 illustrates that the button 935 stays the inverse color, but an arrow button 939 reverts to its previous color.

In one embodiment, any touched button of the buttons 933 of the flow 930 turns an inverse color while being touched. If the button could be adjusted to another value, then the button/selection box remains inverted as to color even when the user is no longer touching the button, such as button 935. However, if the button is an up/down arrow, for example button 937, then the button only turns inverse while the user is touching that button. In other words, when the user releases the button, such as an up/down button, then the button returns to its normal color/state 939. In other embodiments, the button color inverse can occur in other tabs, such as the home tab, the humidity tab, and so on.

Turning now to FIG. 9C, illustrated is a program schedule in a program screen 940 of the programs tab 380 partitioned into a plurality of time zones wherein, upon a button corresponding to a time zone 941 being pressed for a set period of time: a) a temperature setpoint for that time period is deactivated, b) a display of the deactivated setpoints of the deactivated time period now appears dim relative to a display of the time period's setpoints before deactivation; and c) the deactivated time period's setpoints 943 appear dimmer relative to an active time period's setpoints.

In the illustrated embodiment of FIG. 9C, if one of the time periods 941 is pressed and held for approximately two seconds, then the setpoints for that time period 943 is deactivated. In one embodiment, the time period 943 is then controlled by the previous time period's setpoints.

Turning now to FIG. 9D1, illustrated is an interface 950 for setting a system time for a HVAC system 100, such as through a program screen of the programs tab 380. Setting a system time involves 6 boxes. Each box contains a particular aspect of time and date. Only one box can be changed by a user at a time. FIG. 9D1 generally discloses an analog clock interface 950 with date and time selection boxes. The date and time selection boxes are as follows: hour box 961, minute box 962, AM/PM box 963, month box 964, day box 965 and year box 966.

Generally, in the clock interface 950, the hands 958, 959 of the clock interface 950 are moved by touching them and dragging them to a desired position, either through a touch screen or with a device such as a trackball. The hour hand 958 and the minute hand 959 are linked to their corresponding boxes 661, 662, and the boxes 661, 662 change if their corresponding hands are adjusted. For example, if the hour hand 958 is changed from “12” to “6,” then the hour box 961 changes from “12” to “6.” The up and down arrows 960 can also be used to adjust each interface box. Typically, in interface 950, at least one value of at least one interface box is changed as a user drags at least one clock hand of the analog clock. Generally, in interface 967, at least one value of at least one number itself is used as an input to a box, and the analog clock face 967 maps to the changed value.

Turning now to the clock interface 965 of FIG. 9D2, the clock face numbers themselves are used as buttons, a selection of any of which define where clock hands 973, 974 point and values in boxes 971, 972. Either the hour 971 or minute 972 box is selected, and then the desired number on the clock face is pressed, upon which both the hour hand 973 or minute had 974 to jump to that setting, and boxes 971, 972 fill in for that value. For example, if the hour box 971 is selected and the current setting is “5,” and then the clock face number “10” is pressed, then both the hour hand 973 jumps to “10” and the hour box 971 adjusts to “10.” The up and down arrows 660 can be used to adjust each box.

Turning now to FIG. 9E, illustrated is an embodiment of a program screen of a programs tab 380 and a reset interface 975 for the same. Generally, the reset interface 975 of FIG. 9E can help a user reset to predetermined default setting, such as a factory setting 976 or another custom setting 977, when a user inadvertently changes one or more settings, or otherwise wishes to go back to these settings. Without the reset interface 975, a user might have to spend a considerable amount of time reviewing an owner manual and/or scrolling through a plurality of menus to locate the erroneous or unwanted settings, and may not know what the reset settings even are. As is illustrated, there are different selections for settings, temperature, clock, daylight savings time, display and backlight.

All buttons in FIG. 9E that are in grey represent an exemplary set of employed reset values or parameters as currently selected in the illustrated exemplary reset interface 975 upon an exit from the reset interface 975. These reset selections are employed by the HVAC system 100. These reset values over-ride whatever in currently being employed in the HVAC 100. However, any reset value may be changed, as described below.

Generally, the reset interface 975 can select from a default value among the following values: a user can reset the dashboard 350 to the factory setting 976 or to another value, such as the custom value 977 programmed by an installer. For example, if programming or operating becomes confusing or other issues occur, the customer can reset the values to these prior settings. The reset screen 975 provides a reset unit of measurement in either the British unit (Fahrenheit) 978 or a S.I. 979 unit (Celsius).

The user may select a reset to a 12 hour 980 or 24 hour 981 clock. If users prefer the 24 hour clock rather than the “12” hour clock, he or she can do so via this change. The user can also adjust or correct the time, for any reason, including daylight savings times 982, 983.

A user may also set the default language: the consumer or dealer can reset to an exemplary preferred language 984-987 or change it, if needed. The customer can reset the backlight brightness, such as backlighting for high 991, medium 990, low 989, or of 988.

Generally, when the installer first installs the equipment, the installer ill be able to set all parameters outlined above as part of the initial set up and commissioning of the dashboard and system. An installer or user can save the settings through a save button 992, or exit with an exit button 993. When the settings are saved, this over-rides any other programming or configuration in the HVAC system 100.

Turning now to FIG. 9F, illustrated is an exemplary program screen that further includes a display of a plurality of pre-populated program schedule settings. The pre-populated program settings selection choices range from a maximum comfort 994 to a maximum energy savings 998 of the range. The settings employ a slider 992 between the maximum comfort setting 994 to the maximum energy savings 998 of the selection based upon a selector 990. Furthermore, based on a selection of a user, a program schedule of the programs tab 380 automatically populates temperature and humidity settings for each program scheduled event, to achieve a desired selection. This can occur in the programmed setpoints for both temperature and humidity, and in further embodiments can include the activation or deactivation of pieces of various environmental equipment, such as heaters, coolers, fan blowers, humidifiers, dehumidifiers, etc.

Turning now to FIGS. 9Fi and 9Fii, illustrated are exemplary flows of programming screens that can be used with this embodiment. In flow 1000 of FIG. 9Fi, for a dashboard 300 that is running a program schedule, and flow 1006 of FIG. 9Fii, for an embodiment of the dashboard 350 that is not running a program schedule, instead of a user directly entering the necessary values, the user instead sets the slider of FIG. 9F, and the values are entered into these screens by the slider 992. The flow 1000 has a screen 1001, 1002, 1003, 1004, 1005 and 1006. The flow 1006 has a screen 1007, 1008 and 1009.

In one embodiment, if a change of operating parameters is made in the program screen of the programs tab 380 while a current program is running which employs previously entered parameters, a hold time can be programmed within the programs tab 380, wherein the hold time is entered as at exactly what time the previous parameters are to stop taking effect.

In a further embodiment, the dashboard 350 has to set parameters/settings for all devices in the HVAC system 100. There are a few parameters, such as for a blower, that have large ranges that can be very time consuming to set with up and down arrows. Therefore, a coarse scroll bar and a fine scroll bar can be used to adjust such settings (not illustrated). First, the coarse bar is adjusted to get close to the desired range, and then the fine bar is adjusted to get to the exact and prices settings. This can be done by a dashboard 300 that is or includes a touch-screen.

Turning now to FIG. 10A, illustrated is an exemplary flow 1010 employing the home screen 450. In a first screen 1015, a particular icon 1017, such as the “Lennox”™ icon, is placed on the home screen 450 to enable an access of an installer screen. In FIG. 10A, in order to access an installer screen from the home screen 450, an installer is to both a) press and hold the icon 1017 with a finger for at least five seconds; and then b) drag the finger across the interface, as illustrated in screen 1020. The button hold and drag is to be performed without lifting a finger for the installer screens to be accessible from the home screen. Otherwise, the screen 1015 generates a warning screen 1025.

In a further embodiment, the dashboard 350, such as in the home screen 450, has a single icon that gives a user an indication that there is at least one alert present. [Not illustrated.] In one embodiment, the alert icon is one of three colors: a) a first color to indicate that the HVAC system 100 is currently running in an energy efficient mode; b) a second color to indicate that a filter of the HVAC system 100 needs to be replaced; and c) a third color to indicate that a piece of equipment is no longer working.

Pressing the alert icon directly navigates to a display page on the dashboard 350, such as found in the alarm tab 330, giving a user: a) more information about the at least one alert; b) the ability to clear the at least one alert; or c) to set a reminder time for a later date for the at least one alert.

Furthermore, a color of the alert can be changed to signal a different level of severity alert is present. For example, a “green” alert icon could signal that the HVAC system 100 is currently running in an energy efficient mode. A “yellow” alert icon could signal that a filter needs to be replaced. A “red” alert icon could signal that a critical piece of equipment is no longer working.

Turning to FIG. 10B, illustrated is an exemplary transition 1030 from a home screen 450 to a tabbed interface 1040. In FIG. 10B, if a user touches anywhere that is not a button, such as an area 1035, a tabbed interface 1040 arises, each of the interfaces (humidity screen, help screen, etc.) accessible through its corresponding tab 310-380.

Generally, flow 1030 gives a user a straightforward interface that can easily get indoor settings and system information. With a simple screen press, such as in an area 1035, a user can get a tabbed interface 1040, thereby allowing a change of a system or mode setting, or to otherwise get more detailed information about aspects of the HVAC system 100.

The home screen with tabbing 1040 of FIG. 10B also allows the user to change a current temperature setpoint without necessarily having to deal with much further information. Therefore, all a user needs to do is press anywhere inside an “indoor conditions” area (that is not a button) and the home screen 450 transitions to the tabbed interface where all indoor settings can be changed in the indoor settings tab 375 and more detailed information can be obtained.

In a further embodiment, the home screen 450 can be a “default screen” for the dashboard 350 and gives the user general information about indoor conditions. In a still further embodiment, an icon of the home screen 450 is correlated to at least one HVAC system mode or fan mode. In this embodiment, for example, a fan icon can be used to represent a touch area for a user to press if the user wants to change a fan schedule in the dashboard 300. Similarly, in some embodiments, a “flame and flake” icon can be used to represent a system mode button that a user may wish to change.

In a yet further embodiment of the home screen 450, at least one attribute of a presentation of the home screen is selectable by a user. For example, differing presentations can be mode of comfort backgrounds. One example could be a black and white screen for a background of the home screen 450; another example could be use of a larger font size on the home screen 450, etc.

Turning now to FIGS. 11A1 and 11A2, illustrated are two exemplary embodiment of an installer dashboard 1030 to be used in conjugation with the installer flow 401 and its various tabs and screens. The installation dashboard 1030 can be considered a subset of the dashboard 350, and is contained within the dashboard 350, although both the dashboard 350 and the installation dashboard 700 are accessible remotely.

Pressing the installation Setup tab 402 can change the active tab to an installation setup screen of the installer flow 401. In some embodiments, when accessing the installer screens, the display 350 defaults to showing the installation setup tab 402 as active.

Pressing the tests tab 404 can change the active tab to an installer tests screen of the installer flow 401. Pressing the installer help tab 414 provides “context sensitive” help that presents dialog boxes relating to current screen functions regarding installation of the installer flow 401. Pressing the alerts tab 408 changes the active tab to the (installer) alerts screen of the installer flow 401. The diagnostic tab 406 is only active once the system 100 has been configured. Pressing the diagnostic tab 406 changes the active tab to the diagnostics screen of the flow 401. Pressing the exit tab 703 advances the installer to the home screen 450—leaving the installer screens. If available, pressing the start tab 115 allows the HVAC system 100 to begin operating.

Turning now to FIG. 11B, illustrated is an installation and setup screen 1120 that displays minimum 1127, maximum 1129, current 1130 and default 1131 values on one screen for a device setting in an installation screen of the flow 401 for a particular device in the HVAC network 200 of the HVAC system 100. In one embodiment, the device to be installed sends a message to the dashboard 300 with the minimum, maximum and factory default values. In a further embodiment, the device to be installed can send increment values. The installation screen 1120 then displays all of this information to the installer. This gives the installer better information to set device parameters.

Turning now to FIG. 11C, illustrated is an exemplary installer screen 1130 illustrating an underlining 1132 of factory default settings for device parameters of the HVAC system 100. Generally, when multiple settings are displayed on one screen, under-lining 1132 one of the listings allows an installer to know what the factory default setting is, even when a separate entry 1131 is an option that is currently installed.

Turning now to FIG. 11D, illustrated is a flow 1155 wherein a device within the HVAC 100 to be diagnosed in the installer dashboard 1130 is moved as text by a finger movement from a left part 1191 of the diagnostic interface 1155 to a right part 1196 of the diagnostic interface 1155.

In some embodiments, this approach does not need a select button or a remove button. Instead, an installer touches a desired item/device, such as item 1194, and drags the text or icon to the right side of a screen 1196, creating an absence 1195, and then releases. Once the device is on the right side 1196 of a screen of the flow 1155, it is no longer on the left side 1193, and a start button 1197 appears, letting the installer know that the installer may proceed with diagnostics. To remove the selected item, simply drag it back to a list on the left 1191.

Turning now to FIG. 12, illustrated is an exemplary method 1200 for operating and/or providing a visual interface for a HVAC network of an HVAC system, such as the HVAC network 200.

In a step 1201, a weather tab that invokes a weather screen is provided. In a step 1220, an indoor humidity tab that invokes an alert screen is provided, wherein invoking the indoor humidity tab advances to a humidity screen which displays at least a current indoor humidity. In step 1230, an alerts tab that invokes an alerts screen is provided. In a step 1240, a help tab that invokes a help screen is provided, wherein invoking the help tab advances to a help screen that provides context sensitive help that presents at least one dialog box related to a function of a current screen. In a step 1250, an indoor settings tab that invokes an indoor setting screen which includes a current indoor temperature. In a step 1260, a programs tab that invokes a program screen is provided which can program at least one of a) time b) temperature setpoints and c) heating/cooling setpoints. In a step 1270, a home tab provides a summary of indoor conditions is provided. In a step 1280, at least one of the screens from the above steps is invoked.

In a further embodiment of the method 1200, step 1270 further provides wherein the home tab can further advance to an installer dashboard that can accessed only by an entry of a key, wherein the key is entered by an installer. In a further embodiment of method 1200, step 1260 further provides that, upon a time zone being pressed for a set period of time in the program screen: a) a temperature setpoint for that time period is deactivated; b) a display of the deactivated setpoints of the deactivated time period appear dim relative to a display of the time period setpoints before deactivation; and c) the deactivated time period's setpoints appear dimmer relative to an active time periods setpoints. Step 1260 also still further provides providing a display of a plurality of pre-populated program schedule settings.

The method 1200 yet further includes a further embodiment of step 1240, wherein the help screen further displays settings dependent upon a screen displayed before the help screen is invoked. A still further embodiment of the method 1220 includes a further embodiment step 1220, wherein the humidity screen allows users to program different humidity levels for different periods of a day. A yet still further embodiment of step 1200 includes a yet still further embodiment step 1250, wherein for a given piece of equipment to be offered to a user, a corresponding piece of equipment is installed in the HVAC dashboard.

Turning now to FIGS. 13A and 13B, illustrated is an exemplary flow diagram 1300 illustrating a subnet controller controlling a user interface display, which in some embodiments can be used in conjunction with or as a further embodiment of the method 1200.

Message(s) 1: subnet controller 1310 tells UI 1320 to display a specific screen and instructs it how to fill the data fields (TITLE, FIELDx, VALUEx, UNITx field as well as instructions on Buttons—how many there are, what their caption is). For example, to fill FIELD2 use UI string numbers 1234, to fill VALUE2 field, look at message with ID 12093 and starting bit 16 (3^rdbyte of the message) take 16 bits out and interpret them as unsigned int (16 bit), to fill UNIT2 field, use units of F/C (indicates temperature, for example.)

Message(s) 2: subnet controller 1310 tells device(s) 1330 to start operating—performing whatever test they are to perform.

Message(s) 3: device(s) 1330 broadcast their status and/or diagnostic messages and the UI 1320 interprets and displays the data, as it was taught by message(s) 1.

Message(s) 4: UI 1330 lets the subnet controller 1310 know which button was pressed, the subnet controller 1310 interprets this as either a SKIP TEST (go to the next one, or if on the last one, go to the results page), TEST PASSED or TEST FAILED, as appropriate. After this, the whole process repeats for all tests. An exemplary user interface screen shot after completion of a test can be seen in FIG. 13B.

Those skilled in the art to which this application relates will appreciate that other and further additions, deletions, substitutions and modifications may be made to the described embodiments.

	Number	Date	Country
Parent	12258659	Oct 2008	US
Child	12603519		US

SYSTEM AND METHOD OF USE FOR A USER INTERFACE DASHBOARD OF A HEATING, VENTILATION AND AIR CONDITIONING NETWORK

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CPC

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Abstract

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CROSS-REFERENCE TO RELATED APPLICATIONS

Provisional Applications (1)

Continuation in Parts (1)