The present invention relates in general to programmable thermostats for controlling air handling systems for heating, ventilation, and cooling. More particularly, the invention is directed to thermostats paired with remote sensors in which the thermostat is configured to maintain a local ambient temperature within a region based on a selection of the remote sensors.
Many traditional homes and buildings may have one centrally located heating, ventilation, and air conditioning (“HVAC”) system which is employed to regulate the indoor ambient temperature of buildings and are often controlled by a single thermostat. Often the ambient temperature may vary from room-to-room throughout the building as a result of unbalanced air flow, uninsulated air ducts, and activity and occupancy of the rooms. This variation in temperature throughout the building may make living conditions uncomfortable for the building occupants.
Accordingly, a need exists to provide a thermostat which can be programmed to regulate the ambient temperature in specific locations within a building.
In the first aspect, a system for controlling a local temperature of a zone within an environment is disclosed. The system comprises one or more temperature sensors placed within an environment, a thermostat controlling a Heating, Ventilation, and Air Conditioning (“HVAC”) system, the thermostat paired with the one or more temperature sensors, and a computing cloud establishing a communication link with the thermostat, a communication link with the one or more temperature sensors, and a communication link with a computing device. The thermostat is configured to communicate a status of the thermostat to the computing cloud. The one or more temperature sensors is configured to communicate a status to the computing cloud. The computing cloud is configured to transmit the status of the thermostat and sensors to a computing device. The computing device is configured to communicate a selection of temperature sensors and temperature setpoints to the computing cloud. The computing cloud is configured to communicate the selection of temperature sensors and the temperature setpoints to the thermostat. The thermostat is configured to control the HVAC system by the thermostat based on the selection of temperature sensors and the temperature setpoints.
In a first preferred embodiment, the thermostat paired with the one or more temperature sensors comprises coupling the one or more temperature sensors to the thermostat via an access point. The thermostat paired with the one or more temperature sensors preferably comprises coupling the one or more temperature sensors to the computing cloud via an access point and coupling the computing cloud to the thermostat. The thermostat paired with the one or more temperature sensors preferably comprises coupling the one or more temperature sensors with a thermostat directly. The thermostat is preferably configured to control the HVAC system by the thermostat based on the selection of temperature sensors and the temperature setpoints comprises receiving the current measured temperatures of the selected temperature sensors, averaging the current measured temperatures to obtain an average measured temperature, and controlling the HVAC system based on the temperature setpoint and the average measured temperature. The selection of temperature sensors is preferably based on common characteristics of the selected temperature sensors.
The computing device is preferably further configured to communicate a schedule for selecting temperature sensors and temperature setpoints to the computing cloud, the computing cloud is preferably further configured to communicate the schedule for selecting temperature sensors and temperature setpoints to the thermostat, and the thermostat is further configured to control the HVAC system by the based on the schedule for selecting temperature sensors and temperature setpoints. The system preferably further comprises a software application executing on the computing device, wherein the computing device is further configured to display an indication status of the thermostat and sensors and receive commands from a user of the selection of temperature sensors and the temperature setpoints.
In a second aspect, a method for controlling a local temperature of a zone within an environment in a system comprising a thermostat controlling a Heating, Ventilation, and Air Conditioning (“HVAC”) system, one or more sensors placed within an environment is disclosed. The method comprises pairing one or more temperature sensors with a thermostat, establishing a communication link between the temperature sensors and a computing cloud, the sensors communicating a status of the sensors, establishing a communication link between a thermostat and a computing cloud, the thermostat communicating a status of the thermostat, and transmitting the status of the thermostat and sensors from the computing cloud to a computing device. The method further comprises communicating the selection of temperature sensors and a temperature setpoint from the computing device to the computing cloud, communicating the selection of temperature sensors and the temperature setpoint from the computing cloud to the thermostat, and controlling a HVAC system by the thermostat based on the selection of temperature sensors and the temperature setpoint.
In a second preferred embodiment, the pairing the one or more temperature sensors with a thermostat comprises coupling the one or more temperature sensors to the thermostat via an access point. The pairing the one or more temperature sensors with a thermostat preferably comprises coupling the one or more temperature sensors to the computing cloud via an access point and coupling the computing cloud to the thermostat. The pairing the one or more temperature sensors with a thermostat preferably comprises coupling the one or more temperature sensors with a thermostat directly. Controlling a HVAC system by the thermostat based on the selection of temperature sensors and the temperature setpoint preferably comprises receiving the current measured temperatures of the selected temperature sensors, averaging the current measured temperatures to obtain an average measured temperature, and controlling the HVAC system based on the temperature setpoint and the average measured temperature. The selected temperature sensors preferably comprises a group of selected temperature sensors, wherein the group of selected temperature sensors is based on common characteristics of the selected temperature sensors.
The method preferably further comprises communicating a schedule for selecting temperature sensors and temperature setpoints from the computing device to the computing cloud, communicating the schedule for selecting temperature sensors and temperature setpoints from the computing cloud to the thermostat, and controlling a HVAC system by the thermostat based on the schedule for selecting temperature sensors and temperature setpoints. The method preferably further comprises executing a software application on the computing device, displaying an indication status of the thermostat and sensors, and receiving commands from a user of the selection of temperature sensors and the temperature setpoints.
In a third aspect, a system for controlling a local temperature of a zone within an environment is disclosed. The system comprises a thermostat controlling a Heating, Ventilation, and Air Conditioning (“HVAC”) system, the thermostat paired with one or more temperature sensors, and a computing cloud establishing a communication link with the thermostat, a communication link with the one or more temperature sensors, and a communication link with a computing device. The thermostat is configured to communicate a status of the thermostat to the computing cloud. The one or more temperature sensors is configured to communicate a status to the computing cloud. The computing cloud is configured to transmit the status of the thermostat and sensors to a computing device. The computing device is configured to communicate a selection of temperature sensors and temperature setpoints to the computing cloud. The computing cloud is configured to communicate the selection of temperature sensors and the temperature setpoints to the thermostat. The thermostat is configured to control the HVAC system by the thermostat based on the selection of temperature sensors and the temperature setpoints.
In a third preferred embodiment, the thermostat paired with the one or more temperature sensors comprises coupling the one or more temperature sensors to the thermostat via an access point. The thermostat paired with the one or more temperature sensors preferably comprises coupling the one or more temperature sensors to the computing cloud via an access point, and coupling the computing cloud to the thermostat. The thermostat paired with the one or more temperature sensors preferably comprises coupling the one or more temperature sensors with a thermostat directly.
These and other features and advantages of the invention will become more apparent with a description of preferred embodiments in reference to the associated drawings.
Many traditional homes and buildings rely on one, centrally-located heating, ventilation, and air conditioning (“HVAC”) system to heat and cool the entire building. A conventional HVAC system typically relies on a single thermostat to control the HVAC system, where the thermostat has a built-in temperature sensor. When the measured temperature at the thermostat is no longer within user-specified temperature setpoints, the entire HVAC system may be activated to heat or cool the entire building.
While this may be adequate for smaller living or workspaces, this approach may result in non-uniform temperature variations for larger or multi-story environments. For example, a two-story house having a thermostat on the ground floor may exhibit higher temperatures on the second floor than that of the first floor which is monitored by the thermostat. The variations in temperature among floors or rooms may be a result of unbalanced air flow, improper thermal insulation, uninsulated air ducts, and activity and occupancy of the rooms.
Existing solutions to buildings having non-uniform ambient temperature may include the use of zone dampers to control flow of air in an HVAC system. These systems may have multiple motor driven dampers to control air flow from the HVAC system to individual zones within a building. However, the use of zone dampers may be problematic and expensive.
In one or more embodiments, systems and methods for controlling the ambient temperature within regions or zones of a building are disclosed. Embodiments disclosed herein do not require the use of zone dampers. In an embodiment, a system comprises a thermostat, one or more sensors placed throughout an environment such as a house or building, a computing cloud, and a remote mobile or desktop device running a software application (“app”). The computing cloud may communicate with the thermostat and the remote mobile or desktop device. An end user may interact with an app running on the mobile device or desktop, where the app may enable the end user to communicate preferences to the computing cloud. The app may display the current conditions in a house, for example, and allow the user to select specific temperature sensors located throughout the house. This selection of one or more temperature sensors is communicated to the computing cloud, and the computing cloud sends commands to the thermostat to monitor the user's selected temperature sensors for controlling the heating and cooling of the house.
The environment 110 comprises, for example, a two-story house having a first floor 116 and a second floor 114. The first floor 116 comprises a first zone 119, and the second floor 114 comprises a second zone 115 and a third zone 117. The system 101 for monitoring and controlling the temperature in the environment 110 comprises a HVAC 123 system, which is controlled by a thermostat 122. In an embodiment, the system 101 comprises a single thermostat 122 controlling a single HVAC system 123. The system 101 also comprises multiple remote sensors 120A-120H placed throughout the house 110. The remote sensors 120A-120H are paired and in communication with the thermostat 122. As shown schematically, the HVAC system 123 generates conditioned air through supply air 13 entering the second zone or room 115, supply air 17 entering the third zone or room 117, and supply air 19 entering the first zone 119.
The system 101 also comprises a computing cloud 132 which is accessible through the Internet 130. The computing cloud 132 is configured to communicate with a mobile device or desktop (i.e., computing device) 134 which is accessed and controlled by a user 136.
Multiple communication links 11, 12, 14, and 15 are formed by the system 101. The communication links 11, 12, 14, and 15 are depicted schematically as straight, dashed lines with arrows, and are used to represent the communication between the eventual components of the system 101. As will be discussed below, these communication links may not be direct connections between components and may rely on other intermediate devices to facilitate the communication links. For example,
As shown in
In one or more embodiments, a system 101 for controlling a local temperature of a zone within an environment 110 comprises a thermostat 122 controlling a Heating, Ventilation, and Air Conditioning (“HVAC”) system 123. In an embodiment, the system may further comprise one or more temperature sensors 120A-120H placed within an environment 110. The thermostat 122 is paired with one or more temperature sensors 120A-120H. The system 101 further comprises a computing cloud 132 establishing a communication link 15 with the thermostat, a communication link 12 with the one or more temperature sensors, and a communication link with a computing device 14. The thermostat 122 is configured to communicate a status of the thermostat 122 to the computing cloud 132 (via communication link 15). The status of the thermostat 122 may include a listing of sensors 120A-120H and the state of the sensors 120A-120H which are paired with the thermostat 122, the current measured temperature of the thermostat 122, weather conditions, as well as controls for operating the thermostat 122.
The one or more temperature sensors 120A-120H are configured to communicate a status to the computing cloud 132, such as current measured status and mode of operation of the sensors 120A-120H (via communication link 12). The computing cloud 132 is configured to transmit the status of the thermostat 122 and sensors 120A-120H to a computing device for user 136 (via communication link 14).
The computing device 134 is configured to communicate a selection of temperature sensors and temperature setpoints from the user 136 to the computing cloud 132 (via communication link 14). The computing cloud 132 is configured to communicate the selection of temperature sensors and the temperature setpoints to the thermostat 122 (via communication link 15). The thermostat 122 is configured to control the HVAC system 123 by the thermostat 122 based on the selection of temperature sensors and the temperature setpoint.
As an example to illustrate the operation of the system, consider a two-story house 110 having only one HVAC system 123, where the thermostat 122 is located downstairs (i.e., first floor 116) and the remote temperature sensor 120A is located upstairs in a bedroom (e.g., zone 115). The occupants are currently on the first floor 116 but wish to retire for the night to the bedroom (i.e., zone 115). When going to sleep upstairs to the bedroom, the occupants interface with the mobile device or desktop 134 (i.e., computing device) and select sensor 120A for monitoring (labeled BEDROOM SENSOR for example). Now the HVAC system 123 will control to the temperature in the bedroom while sleeping.
As another example, consider a dwelling with one HVAC unit 123 with the thermostat 111 located in a central hallway and a Home Office apart from the hallway. When the lone occupant of the house is working in the Home Office, the occupant will select the Home Office sensor for the HVAC system 123 to control to the sensor inside the Home Office.
The user 136 interacts with an app on a mobile device or desktop 134, and may: (1) select a specific sensor 120 to monitor for temperature by the thermostat 122, (2) select a set of sensors 120 to monitor for temperature, in which the thermostat 122 averages the temperatures for the selected set of sensors 120, or (3) establish a time schedule for selecting one or more sensors 120 for monitoring for temperature by the 122 thermostat (step 164, depicted as “3” in
As a brief review, in one or more embodiments, the thermostat 122 may be configured to control the HVAC system 123 by receiving the current measured temperatures of the selected temperature sensors, averaging the current measured temperatures to obtain an average measured temperature, and controlling the HVAC system based on the temperature setpoint and the average measured temperature. In an embodiment, the selection of temperature sensors may be based on common characteristics of the selected temperature sensors. Common characteristic refers to ways of grouping temperature sensors such as by grouping all wireless sensors (
In one or more embodiments, the user can easily select a specific temperature sensor. For example, as discussed above, in a home, the thermostat and its local/contained temperature sensor are located downstairs. At bedtime the occupant selects the upstairs temperature sensor for control on his way to bed upstairs. The HVAC system now uses the local upstairs remote sensor for control to make it comfortable for sleeping. Additionally, the control to sensor may also be chosen from more than one sensor when setting a time period schedule.
In an embodiment, the computing device 134 is further configured to communicate a schedule for selecting temperature sensors 120 and temperature setpoints to the computing cloud 132, the computing cloud 132 is further configured to communicate the schedule for selecting temperature sensors and temperature setpoints to the thermostat 122, and the thermostat 122 is further configured to control the HVAC system 123 by the based on the schedule for selecting temperature sensors and temperature setpoints.
Selection of the temperature sensors can be made with just 2 easy button presses. First, the user selects “Control Source” icon 426 at the bottom of the mobile app screen (See
An access point 124 is a networking hardware device that allows Wi-Fi devices to connect to a wired network such as an Ethernet or the Internet. In an embodiment, the Wi-Fi driver and transceiver 606, 710, working through an access point 124, enables the sensor 120 and the thermostat 122 to communicate to remote locations via the Internet.
Although the invention has been discussed with reference to specific embodiments, it is apparent and should be understood that the concept can be otherwise embodied to achieve the advantages discussed. The preferred embodiments above have been described primarily as a method and system for remotely selecting a temperature sensor of an environment for a thermostat to monitor. In this regard, the foregoing description is presented for purposes of illustration and description. Furthermore, the description is not intended to limit the invention to the form disclosed herein. Accordingly, variants and modifications consistent with the following teachings, skill, and knowledge of the relevant art, are within the scope of the present invention. The embodiments described herein are further intended to explain modes known for practicing the invention disclosed herewith and to enable others skilled in the art to utilize the invention in equivalent, or alternative embodiments and with various modifications considered necessary by the particular application(s) or use(s) of the present invention.
Unless specifically stated otherwise, it shall be understood that disclosure employing the terms “coupling,” “receiving,” “communicating,” “computing,” “determining,” “calculating,” and others refer to a data processing system or other electronic device manipulating or transforming data within the device memories or controllers into other data within the system memories or registers. When applicable, the ordering of the various steps described herein may be changed, combined into composite steps, or separated into sub-steps to provide the features described herein.
Computer programs such as a program, software, software application, code, or script may be written in any computer programming language including conventional technologies, object-oriented technologies, interpreted or compiled languages, and can be a module, component, or function. Computer programs may be executed in one or more processors or computer systems.
The present application claims priority under 35 U.S.C. Section 119(e) to U.S. Provisional Patent Application Ser. No. 62/971813 filed Feb. 7, 2020 entitled “EASY CONTROL TO SENSOR SELECT FOR HVAC SYSTEMS” the disclosure of which is incorporated herein by reference in its entirety.
Number | Date | Country | |
---|---|---|---|
62971813 | Feb 2020 | US |