Patent Application
20180075714
This invention relates to illumination devices comprising light emitting diodes (LEDs), and also keypads that can selectively control zone, scene and show illumination among the LED illumination devices arranged among a structure based on changes to correlated color temperature (CCT) as a function of different dimcurves and brightnesses.
The following descriptions and examples are provided as background only and are intended to reveal information that is believed to be of possible relevance to the present invention. No admission is necessarily intended, or should be construed, that any of the following information constitutes prior art impacting the patentable character of the subject matter claimed herein.
Illumination devices, sometimes referred to as lighting fixtures, luminaries or lamps include incandescent illumination devices, fluorescent illumination devices and the increasingly popular LED illumination devices. LED illumination devices provide a number of advantages over traditional illumination devices, such as incandescent and fluorescent lighting fixtures. LED illumination devices have lower power consumption, longer lifetime, are constructed of minimal hazardous materials, and can be color tuned for different applications. For example, LED illumination devices provide an opportunity to adjust the chromaticity from red, to blue, to green, etc., or the correlated color temperature (alternatively referred to simply as “color temperature”), from warm white, to cool white, etc.
An LED illumination device can combine a number of differently colored emission LEDs into a single package. An example of a multi-color LED illumination device is one in which two or more different chromaticity of LEDs are combined within the same package to produce white or near-white light. There are many different types of white light LED illumination devices on the market, some of which combine red, green and blue (RGB) LEDs, red, green, blue and yellow (RGBY) LEDs, phosphor-converted white and red (WR) LEDs, RGBW LEDs, etc. By combining different chromaticity colors of LEDs within the same package, and driving the differently colored LEDs coated with or made of different semiconductor material, and with different drive currents, these illumination devices can mix their chromaticity output and thereby generate white or near-white light within a wide gamut of CCTs (color temperatures) ranging from warm white (e.g., 2600K-3700K), to neutral white (e.g., 3700K-5000K) to cool white (e.g., 5000K-6000K, or daylight (e.g., 6000K-8300K). Some multi-colored LED illumination devices also enable the brightness of the LED illumination device to be changed to a particular set point. These tunable LED illumination devices should all produce the same color and color rendering index (CRI) when set to a particular brightness and chromaticity on a standardized chromaticity diagram.
A chromaticity diagram maps the gamut of colors the human eye can perceive in terms of chromaticity coordinates and spectral wavelengths. The spectral wavelengths of all saturated colors are distributed around the edge of an outlined space (called the “gamut” of human vision), which encompasses all of the hues perceived by the human eye. In the 1931 CIE Chromaticity diagram shown in
At least part of the blackbody curve 12 is oftentimes referred to as the “daytime locus” corresponding to the Kelvin scale of color temperatures of daytime. When implementing the daytime locus, it is desirable to emulate daytime color temperatures. Proper daytime emulation requires that target color temperatures increase after sunrise to noon local time, and thereafter decrease after noon to sunset. It is further desirable that the LED illumination devices arranged in various zones throughout the structure can thereafter appear as having the same target color temperature as that of the natural changes in the sun orientation to that structure. If emulation is needed for more than one zone, then one or more zones can be grouped into a scene. A scene is therefore made up of an illumination output from a group of LED illumination devices arranged throughout a structure as one or more zones. It is desirable that either the LED illumination devices within a zone or within one or more zones of a scene have the same illumination output at a particular time. Thus a scene containing a plurality of LED illumination devices desirably has the same brightness and color temperature at a particular moment in time and thus is static for that particular scene. By its nature, a scene is static in terms of the illumination output (color temperature and brightness) for a period of time. Changing from one static scene to another scene to form different illumination outputs among a plurality of illumination devices within one or more zones forms what is known as a show. There may be other LED illumination devices within another scene throughout the structure that can have a different brightness and/or color temperature. For example the illumination devices within a first scene can have a first brightness and/or color temperature, and the illumination devices within a second scene can have a second brightness and/or color temperature. The first scene can be a first illumination output from among a first group of illumination devices, whereas the second scene can be a second illumination output from among the same group of illumination devices, or from a different group of illumination devices.
It would be desirable to control each scene throughout the structure with a keypad. Buttons on the keypad can be dedicated to change the brightness and/or color temperature of a grouped scene of LED illumination devices. By depressing possibly a single button, the brightness and/or color temperature of a grouped plurality of illumination devices that form a scene can change from a first static illumination output to a second static illumination output until such time as the button is depressed again to make further illumination output changes.
It would also be desirable to automatically change at various times of day the static illumination output of the grouped scene of LED illumination devices. The change can occur by depressing buttons on the keypad at various times of day to change from one static output to another, or the change can occur automatically and at pre-defined, periodic intervals without any user intervention. The automatic, periodic changes to the illumination output of a grouped scene of LED illumination devices to another illumination output of the grouped scene forms a show. It would be desirable to map the different brightness and/or color temperature outputs from the grouped scene of LED illumination devices on a dimcurve, and to periodically change at least a portion of the dimcurve using buttons on the keypad. As a dimcurve changes from, for example, a first dimcurve to a second dimcurve, the grouped scene of LED illumination devices can change from one show along the first dimcurve to another show along the second dimcurve.
Although the term “scene” references at least one zone containing a plurality of LED illumination devices, scene hereinafter also references the illumination output from the at least one zone and that output comprises a brightness and color temperature from the at least one zone at a particular point in time and that extends for a period of time until another scene having a different illumination output is produced. Thus, a series of scenes along a dimcurve, each possibly having different brightness and color temperature values, comprise the dynamically changing scenes that form a show. A scene therefore represents not only one or more zones, but also a static brightness and color temperature output from the zones that, when automatically changed throughout the day, forms a show.
It is desirable that the target color temperatures needed to emulate the natural changes in the sun orientation to a structure containing LED illumination devices change not only as a function of brightness but also as a function of the time of day. The changes in color temperatures as a function of brightness and time of day form different dimcurves that at emulated sunrise, for example, the LED illumination devices can produce 2300-2700K predominant emulated red with some yellow sunrise sky, at noontime 5000-6500K predominant emulated blue noontime sky, and again at 2300-2700 predominant emulated red sunset sky—similar to the differences between warm white, daytime/cool white, and back to warm white.
A need therefore exists in grouping LED illumination devices within one or more zones of a structure to form a scene, and to statically change the illumination output of the LED illumination devices of that grouped scene of illumination devices from one scene illumination output to another (i.e., from a first brightness and/or first color temperature of a first scene of the grouped scene of LED illumination devices to a second brightness and/or second color temperature of a second scene of the same grouped scene of LED illumination devices). A need also exists in forming a series of scenes (albeit the same plurality of LED illumination devices within the scene but with different brightness and/or color temperatures) along a dimcurve and to dynamically change the brightness and color temperature illumination output along the dimcurve to create a new dimcurve, and to map the color temperature and brightness values of the series of scenes for each dimcurve. A scene can be assigned to a particular time of day along a given dimcurve, with other scenes having different color temperature and brightness values assigned to other times of day. A further need exists for assigning the scenes, each having a mapped color temperature and brightness value, to various times of day to form a show. If the mapping is performed so that the color temperature emulates the daytime locus, the desired show becomes a natural show that will automatically change the color temperature output of the LED illumination devices within a scene at a particular time of day, and among a series of scenes throughout the day, along a dimcurve that relates to the daytime locus. A need further exists to control changes to color temperature output from a zone or a scene, and to control the natural show by momentarily, permanently or persistently changing, in a smooth and non-disjointed fashion, the natural show among scenes a various times of day using one or more buttons on a single keypad, such as a global keypad.
An illumination system and method is provided for controlling color temperature as a function of brightness. The predominant feature of an LED illumination device can be the color temperature and brightness output therefrom. Various forms of white are needed throughout the day to form a natural show along a dimcurve. The natural show, and specifically the color temperature as a function of brightness, can change to emulate the position of the sun to the structure and, more particularly, the outside daytime and nighttime natural sunlight condition. An override or change to the natural show can be momentary, persistent, or permanent.
One mechanism in which to achieve color temperature control as a function of brightness is through use of a keypad that is communicatively linked to a plurality of LED illumination devices arranged about a structure. The plurality of illumination devices can be grouped into one or more zones within that structure, and one or more zones can be grouped to form a scene. According to one embodiment, a single keypad can control one or more zones of illumination devices that are wire or wirelessly coupled to the keypad. The keypad can control the color temperatures or brightness values associated with each zone, similarly. The keypad can also control a scene of one or more zones of illumination devices, similarly. Control of the zone or scene can occur by depressing a button on the keypad to statically change the brightness or color temperature from one state to another. The change can remain until the button is depressed again. Thus, the zone or scene can be statically controlled each time a button is depressed, until a button is depressed again.
A zone or scene can be statically controlled at specific times of day. As a series of scenes with the same plurality of LED illumination devices, but with different brightness and color temperatures, are mapped along a dimcurve to form a show, one or more of the scenes (and specifically the brightness and color temperatures of a grouped scene of illumination devices) can change in color temperature as a function of brightness and time of day. Automatic and periodic changes to static illumination outputs of the same group of illumination devices can form multiple scenes with different outputs along a dimcurve. If used to emulate daytime sunlight conditions, a mapped dimcurve will produce an increasing color temperature of the same plurality of illumination devices arranged within a scene, and hereinafter is referred to as a series of scenes with increasing color temperatures: scene A is a first scene of illumination devices at a relatively low color temperature, increasing to scene B of the first scene of illumination devices at a relatively higher color temperature, increasing further to scene B of the first scene of illumination devices at an even higher color temperature, etc. Even though scene A, scene B, scene C, etc. is the same scene in terms of the group of LED illumination devices being controlled, the color temperature as a function of brightness for that group changes throughout the day so as to form different scenes since color temperature can change nonetheless among the same scene or group of illumination devices. Accordingly, a scene not only can represent the same one or more zones (i.e, group of illumination devices) a scene also represents the illumination output of the group of illumination devices as color temperatures in relation to brightness and at different times of day to form a dimcurve having a sequence of scenes albeit from the same group of illumination devices.
According to one embodiment, for example, a sunrise illumination scene can be one that produces a color temperature used to emulate sunrise condition at a specific time of day, such as an hour after sunrise. A sunset scene, on the other hand, can be a scene possibly of the same group of illumination devices but has a color temperature output used to emulate sunset conditions and thus is specific to, for example, an hour before sunset.
A keypad arranged among the structure is communicatively coupled to a plurality of LED illumination devices, and the keypad preferably includes a plurality of buttons arranged upon the keypad. A first of the plurality of the buttons can be coupled to adjust brightness of the plurality of illumination devices within only the first zone, whereas a second of the plurality of buttons can be coupled to adjust brightness of the plurality of illumination devices within the illumination scene. The illumination scene can comprise the first zone, and preferably is a static illumination output of brightness and color temperature. That static output can be adjusted in terms of either color temperature or brightness, or both. As noted above, the static, yet modifiable color temperature and/or brightness values output from a particular illumination scene can be changed upon activation of one or more buttons on the keypad. Also, a series of scenes with different, yet each having static illumination output can be dynamically changed by stringing together over the daytime and nighttime hours and mapping the strung-together scenes to a dimcurve to form a show. That mapped dimcurve forms the natural show if the color temperatures along the dimcurve are targeted to emulate the outside daytime illumination by the sun or, during nighttime, by the absence of the sun. A third of the plurality of buttons can be coupled to enable the natural show by automatically and periodically changing color temperature as a function of brightness of the plurality of LED illumination devices within the illumination scene over a plurality of differing times of day.
According to another embodiment, the first of the plurality of buttons further comprises a pair of first buttons. A first of the pair of first buttons is coupled to turn on and increase brightness of the plurality of LED illumination devices within only the first zone. A second of the pair of first buttons is coupled to turn off and decrease brightness of the plurality of illumination devices within only the first zone. The second of the plurality of buttons can further comprise a pair of second buttons. A first of the pair of second buttons is coupled to turn on and increase brightness of the plurality of illumination devices within the illumination scene. A second of the pair of second buttons is coupled to turn off and decrease brightness of the plurality of illumination devices within the illumination scene.
According to yet another embodiment, the fourth of the plurality of buttons further comprises a pair of fourth buttons. A first of the pair of fourth buttons is coupled to turn on and increase color temperature of the plurality of LED illumination devices within the illumination scene. A second of the pair of fourth buttons is coupled to turn off and decrease color temperature of the plurality of LED illumination devices within the illumination scene. The fifth of the plurality of buttons further comprises a pair of fifth buttons. A first of the pair of fifth buttons is coupled to turn on and increase brightness of the plurality of LED illumination devices within only the second zone. A second of the pair of fifth buttons is coupled to turn off and decrease brightness of the plurality of LED illumination devices within only the second zone.
The illumination system, in addition to LED illumination devices and a keypad, can also include a remote controller having a graphical user interface (GUI). For example, programming control of a first and second plurality of LED illumination devices assigned to a keypad occurs through use of the remote controller and specifically the GUI of the remote controller. The GUI rendered on a screen of the remote controller is remote from yet wirelessly coupled to the first and second plurality of illumination devices as well as the keypad. On the GUI, a user can assign the first plurality of illumination devices to a first zone and the second plurality of illumination devices to a second zone. On the GUI, a plurality of scenes can also be created, each having possibly a unique brightness and color temperature. Each of the plurality of scenes can be created to control the color temperature as a function of brightness and time of day for the first and second plurality of illumination devices. Also on the GUI, a timed sequence of scenes can be grouped from among a plurality of scenes to form the natural show. The natural show extends along a first dimcurve having the highest color temperature substantially near a midpoint in time between sunrise and sunset.
Brightness can be changed among the first plurality of illumination devices within the first zone and among the second plurality of illumination devices within the second zone by depressing a first of the plurality of buttons on a first portion of the keypad and a fifth of the plurality of buttons on a second portion of the keypad, respectively. The natural show can also be changed to be along a second dimcurve having less brightness than the first dimcurve throughout the timed sequence of scenes at a color temperature among the first and second plurality of illumination devices that changes differently along the second dimcurve than the first dimcurve.
According to one embodiment, the natural show can be permanently changed to be along the second dimcurve by changing brightness among the first and second plurality of illumination devices for at least one scene among the time sequence of scenes by depressing the second of the plurality of buttons on a first portion and by thereafter depressing a third of the plurality of buttons on the first portion for a pre-determined amount of time. The natural show can be persistently changed for a timeout period by changing the brightness among the first and second plurality of illumination devices for at least one scene among the timed sequence of scenes by depressing the second of the plurality of buttons on the first portion and automatically, without user intervention, changing brightness among the first and second plurality of illumination devices back to the first dimcurve after a timeout has expired.
The natural show can also be changed to be along a second dimcurve having less brightness and less color temperature than the first dimcurve among the first and second plurality of illumination devices during the time sequence of scenes. Yet the amount of said less color temperature is dependent upon the time of day as a function of the amount of said less brightness. The natural show can then be permanently changed to be along the second dimcurve by changing brightness or color temperature among the first and second plurality of illumination devices for at least one scene among the timed sequence of scenes by depressing the second of the plurality of buttons on the first portion or the fourth of the plurality of buttons on the first portion, respectively, and thereafter depressing a third of the plurality of buttons on the first portion for a pre-determined amount of time. The natural show can also be persistently changed by changing brightness and color temperature among the first and second plurality of illumination devices for at least one scene among the timed sequence of scenes by depressing the second of the plurality of buttons on the first portion. Brightness and color temperature can be automatically changed among the first and second plurality of illumination devices back to the first dimcurve without user intervention after a timeout has expired.
According to yet another embodiment, the illumination system can be implemented using a global keypad. Multiple groups of LED illumination devices can be arranged among respective multiple zones throughout the structure. A singular, global keypad used to control all of the LED illumination devices among the structure is communicatively coupled to the multiple groups of illumination devices and can include a plurality of buttons arranged upon the global keypad. At least one of the plurality of buttons can enable a panic show to turn on and off in automatic, periodic succession select ones of the multiple groups of illumination devices.
In addition to, or as an alternative to, turning on and off in automatic, periodic succession multiple groups of illumination devices, the global keypad can also enable the panic show to change color in select ones of the multiple groups of illumination devices when an intruder is detected within the structure or within a pre-defined distance of the structure. The changed color can be, for example, a white to a red color to indicate presence of the intruder.
The singular, global keypad can therefore be implemented in a method for illuminating a structure. The method can comprise emitting light from multiple groups of LED illumination devices within and proximate to a structure. A button can be depressed on the singular, global keypad to activate the away mode of operation. Once an intruder is detected within, or within a pre-defined distance of, the structure, the panic show is initiated among select ones of the multiple groups of illumination devices. The light emitted before the panic show can, for example, be a natural show that automatically and periodically changes color temperature as a function of brightness at a different time of day. When the intruder is detected, the natural show discontinues, and the panic show of periodic on/off illumination or change of color will be initiated.
An important aspect of the control of various scenes begins by mapping various natural shows among a plurality of illumination scenes. A series of illumination scenes, each having different color temperatures as a function of brightness and time of day forms a continuous dimcurve from sunrise to sunset, and even beyond sunset into nighttime. According to one embodiment, it is beneficial to map multiple natural shows, or multiple dimcurves, each having a plurality of illumination scenes, and each scene on each dimcurve having a unique color temperature as a function of brightness that is different from other scenes on that dimcurve. Thus, the color temperature of all illumination devices is designed to change with brightness and time of day. However, the amount of change depends on the color temperature at full brightness. The changing color temperature at full brightness can be along a first dimcurve, and as brightness decreases, a second, followed by a third, etc. dimcurve is formed. As brightness decreases, the subsequent dimcurves (second dimcurve, third dimcurve, etc.) illustrate that as a plurality of illumination devices associated with the scene produce 2700K at full brightness, the same plurality of LED illumination devices will produce a significantly lower color temperature at lower brightness values. Meanwhile, the plurality of illumination devices producing 5000K at full brightness will produce only a slightly lower color temperature at lower brightness values. Thus, the dimcurves, and specifically the change in color temperature is a function not only of full brightness but brightness in general. Color temperature is also relative to the time of day, so that each dimcurve at different brightness values, at full brightness and below, will have a differing mapped shape.
The mapping of color temperature at full brightness to form, for example, the first dimcurve, and the mapping of color temperature at lower brightness values to form the second dimcurve, third dimcurve, etc., is fixed during the mapping, or provisioning process. The mapping, or provisioning process, occurs via the GUI and subsequent storage of the produced dimcurves within the plurality of LED illumination devices. Thereafter, the mapped dimcurves can be drawn, or fetched from the illumination devices when, for example, a control signal addressed to the particular group of illumination devices is sent from the depressed button on the keypad.
According to a first embodiment, a system is provided for creating dimcurve mappings of natural shows among a plurality of illumination scenes. The system comprises a remote controller having a GUI that is adapted for creating a first scene and a second scene among the plurality of illumination scenes applied exclusively to a first group of the plurality of LED illumination devices. The GUI is further adapted to assign a first color temperature as a first function of brightness for the first group of the plurality of illumination devices to form the first scene at a first time of day. The GUI is still further adapted to assign a second color temperature as the first function of brightness for the first group of the plurality of illumination devices to form the second scene at a second time of day different from the first time of day. The storage medium within the first group of the plurality of illumination devices is configured to store the first and second color temperatures as a first function of brightness for the respective first and second scenes to form at least a portion of a first dimcurve mapping of a first natural show.
The immediately preceding process can be repeated on the GUI to create a third scene and a fourth scene among the plurality of illumination scenes, with third and fourth color temperatures assigned as a second function of brightness for the first group of the plurality of illumination devices. The ensuing third and fourth scenes can be stored within the storage medium as a second function of brightness to form at least a portion of a second dimcurve mapping of a second natural show.
After the mappings of first and second dimcurves are achieved, the first natural show associated with the first dimcurve can thereafter be at least partially changed to the second natural show associated with the second dimcurve. The method of changing from a first dimcurve to a second dimcurve is preferably smooth and non-disjointed. To achieve a smooth and non-disjointed change, the method includes first fetching a first dimcurve comprising a first series of scenes assigned to at least one group of LED illumination devices, each of said first series of scenes including a color temperature as the first function of brightness. The first series of scenes is then assigned a time-spaced distance apart throughout the day to form the first natural show associated with the first dimcurve of color temperatures that increases from sunrise to noon and decreases from noon to sunset. The brightness or color temperature of one of the first series of scenes at a particular time of day between sunrise to sunset can then be changed. If the changed brightness produces a color temperature of one of the first series of scenes within a pre-defined distance of a point on the second dimcurve, a second fetching operation is achieved on at least a remaining portion of the second dimcurve comprising a second series of N number of scenes preceding the changed scene and N number of scenes succeeding the changed scene.
Preferably, the point on the second dimcurve is a color temperature of a scene on that second dimcurve at a particular time of day. The pre-defined distance is preferably 10% of the color temperature of the scene on the second dimcurve at the particular time of day. The pre-defined distance is preferably less than 65K. Each of the second series of N number of scenes preceding the changed scene and each of the N number of scenes succeeding the changed scene includes a color temperature as a second function of brightness. Preferably, the second function of brightness is different from the first function of brightness, and N is less than three.
According to an alternative embodiment, if the changed brightness or color temperature of one of the first series of scenes is within a pre-defined color temperature or brightness of a scene on the second dimcurve at the particular time of day, then the second fetching is that of at least a portion of the second dimcurve comprising a second series of N number of scenes preceding the changed scene and N number of scenes succeeding the changed scene to provide a smooth and non-disjointed second natural show.
Other objects and advantages of the invention will become apparent upon reading the following detailed description and upon reference to the accompanying drawings.
While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the drawings and detailed description thereto are not intended to limit the invention to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents and alternatives falling within the spirit and scope of the present invention as defined by the appended claims.
Turning now to the drawings,
As brightness decreases to, for example, BR2, as shown in
As shown in
Regardless of whether the brightness change throughout the day is similar in absolute terms, as in
Referring to
Shown in
The purpose in having multiple dimcurves mapped to a local storage device within one or more groups of LED illumination devices is illustrated in the comparison between
LED illumination device 24 comprises a plurality of emission LEDs 26 and, in this example, comprises four chains of any number of serially connected LEDs. Each chain 28 may have two to four LEDs of the same color, which are coupled in series and configured to receive the same drive current. In one example, the emission LEDs 26 may include a chain of red LEDs, a chain of green LEDs, a chain of blue LEDs, and a chain of white or yellow LEDs. However, the preferred embodiments are not limited to any particular number of LED chains, any particular number of LEDs within each chain, or any particular color or combination of the LED colors. In some embodiments, the emission LEDs 26 may be mounted on a substrate and encapsulated within a primary optic structure of an emitter module, possibly along with one or more photodetectors.
In addition to emission LEDs 26 configured into a set of chains 28, illumination device 24 includes various hardware and software components for powering the LEDs 26 and controlling the light output from the one or more emitter modules. In the embodiments shown in
In the illustrated embodiment, PLL 50 is included within illumination device 24 for providing timing and synchronization signals. PLL 50 can lock onto the AC mains frequency and can produce a high speed clock (CLK) signal and synchronization signal (SYNC). The CLK signal provides timing signals for the controller 54 and LED driver circuits 46. In one example, the CLK signal frequency is in the tens of MHz range (e.g., 23 MHz), and is synchronized to the AC mains frequency and phase. The SYNC signal is used by the controller 54 to create the timing signal used to control the LED driver circuits 46. In one example, the SYNC signal frequency is proportional to the AC mains frequency, and can be at a frequency of 50 or 60 MHz with a phase alignment with the AC mains.
In a preferred embodiment, interface 52 may be included within illumination device 24 for receiving data sets, or content, from an external calibration tool. The calibration tool is preferably a remote controller 53 that during provisioning or commissioning of the LED illumination devices 24, it performs a mapping function of various dimcurves contained in datasets or content stored in the illumination devices 24. The data sets or content generated by or received via interface 52 may be stored in a mapping table within storage medium 56 of controller 54, for example. Examples of data sets or content that may be received via interface 52 include, but are not limited to, various luminous flux (i.e., brightness values associated with intensity), wavelength, chromaticity of the light emitted by each LED chain and, as described in more detail below, various color temperatures as a function of brightness along certain dimcurves, and the association into zones or scenes of a plurality of LED illumination devices arranged within a structure. The mapping information can be assigned through a GUI upon remote controller 53, with each mapped dimcurve having a plurality of scenes and each scene having a unique color temperature as a function of brightness along that dimcurve. The plurality of dimcurves, and scenes associated each dimcurve, as well as the grouping of illumination devices among zones and one or more zones (scenes) within a structure also occurs through user input via the GUI, with storage medium 56 containing the mapped results as well as identifiers for the respective illumination device among a zone or scene.
Coupled by wire or wireless to interface 52 is a keypad 55. Keypad 55 comprises a plurality of buttons used to control the illumination device 24. However, control by keypad 55 is based on the datasets stored in storage medium 56 via the provisioning, commissioning, and mapping functionality carried out by remote controller 53, and specifically the GUI of remote controller 53. Keypad 55, and specifically the buttons upon keypad 55, allow for user actuation and the enabling of various natural shows stored as various dimcurves and resulting mapped datasets within storage medium 56. Keypad 55 can also be used to override a natural show, and that override can be either momentary or persistent. Keypad 55 can also be used to permanently change a natural show so that, after change, the changed-to natural show will remain. Thereafter, and at various times of day, a different scene will appear then that which was present in the previous show. Keypad 55 not only allows changes to a show, either momentarily, persistently or permanently, but can change a static setting, such as a single scene among one or more zones within a structure. One or more buttons upon keypad 55 can therefore change the color temperature setting or the brightness setting among a scene, or a zone.
As will be noted in more detail below, various buttons on keypad 55 send control signals to interface 52, and those control signals enable different functionality based on the data sets stored in control medium 56 of the grouped plurality of LED illumination devices 24 being controlled. Interface 52 can therefore comprises a wireless interface that is configured to operate according to ZigBee, WiFi, Bluetooth, or any other proprietary or standard wireless data communication protocol. In other embodiments, interface 52 can communicate optically using infrared (IR) light or visible light. Still further, interface 52 may comprise a wired interface, such as one or more wired conductors or a bus to keypad 55. For example, if remote controller 53 is part of keypad 55, then interface 52 communicates via remote controller 53 over the wired connection of keypad 55. Preferably, however, the remote controller 53 is separate from keypad 55 and is used in the provisioning or mapping process. Remote controller 53, if separate, is preferably wirelessly connected to interface 52 using, for example, ZigBee wireless data communication protocol. Keypad 55, however, can be either wirelessly coupled or wired to interface 52. In a preferred embodiment, keypad 55 is both wired and wirelessly coupled to interface 52 since LED illumination devices have photodetectors that can receive the control signals of keypad 55 or can also receive control signals through a wired conductor.
Both keypad 55 as well as remote controller 53 can include a timer, such as a real-time clock. The timer can send a plurality of times of day signals to the controller 54 via interface 52. For example, if the remote controller 53 comprises the physical keypad 55 or is separate from the physical keypad 55, either the remote controller 53 or the physical keypad can have a real-time clock. The real-time clock, depending on the calendar day and time of day, periodically sends a time of day signal from among a plurality of times of day signals. The time of day signal is unique to the local calendar day and local time of day, and is output by the timer to the plurality of LED illumination devices 24, each of which have an interface 52 communicatively coupled to the remote controller 53 and/or keypad 55.
In addition to the time of day signals sent from remote controller 53 and/or keypad 55, LED illumination devices 24 are also time synchronized from PLL 50. Controller 54 receives the time of day signals as well as the SYNC signal and calculates, based on color temperature mappings as a function of brightness and time of day stored in medium 56, and produces values indicating a desired drive current to be supplied to each of the LED chains 26. This information may be communicated from controller 54 to LED driver circuits 46 over a serial bus conforming to a standard, such as SPI or I2C, for example. In addition, controller 54 may provide a latching signal that instructs the LED driver circuits 46 to simultaneously change the drive current supply to each of the LED chains 26 to prevent brightness and color artifacts.
Controller 54 may be configured for determining respective drive currents needed to achieve a desired luminous flux, or brightness, for the illumination device 24 and specifically the LED chains 26 of illumination device 24 in accordance with one or more system and methods described in U.S. patent application Ser. No. 14/314,530 published on Dec. 31, 2015 as U.S. Publication No. 2015/0382422 A1; Ser. No. 14/314,580 issued on Jul. 12, 2016 as U.S. Pat. No. 9,392,663; and Ser. No. 14/481,081 published on Mar. 3, 2016 as U.S. Publication No. 2016/0066384 A1, which are commonly assigned and incorporated herein in their entirety. In the preferred embodiment, controller 54 may be further configured for adjusting the ratio of drive current supplied to the emission LED chains 26 and to all of the LED chains 26 concurrently. Changing the ratio effects a change in color temperature and changing the chains similarly can change brightness. Controller 54 can also chain either similarly all of the chains the same or chains differently so as not to exceed a maximum safe current level or a maximum safe power level attributed to one or more power converters of the LED illumination device 24 at a preset operating temperature as determined by a temperature sensor, for example.
In some embodiments, controller 54 may determine the respective drive currents by executing program instructions stored within storage medium 56. In one embodiment, the storage medium 56 that stores the mappings necessary to derive various dimcurves as well as the groupings of illumination devices among zones and scenes, and further the brightness value and color temperature value changes via brightness and color temperature of control signals sent thereto, may be configured for storing the program instructions along with a table of calibration values, as described for example in U.S. patent application Ser. No. 14/314,451 published on Dec. 31, 2015 as U.S. Publication No. 2015/0377699 A1, and Ser. No. 14/471,057 issued on Jul. 12, 2016 as U.S. Pat. No. 9,392,660, which are commonly assigned and incorporated herein in their entirety. Alternatively, controller 54 may include combinatorial logic for determining the desired drive currents, either as a ratio or similarly among the LED chains 26. The storage medium 56 need only be used for storing the mapping tables of dimcurves and the brightness/color temperature output values among each dimcurve in response to control signals.
In general, LED driver circuits 46 may include a number of driver blocks equal to the number of emission LED chains 26 included within the LED illumination device 24. In one embodiment, LED driver circuits 46 comprise four driver blocks, each configured to produce illumination from a different chain 28 of the emission LED chains 26, as shown in
DC/DC converter 48 may include substantially any type of DC/DC power converter including, but not limited to, buck converters, boost converters, buck-boost converters, Cuk converters, signal-ended primary-inductor converters, or flyback converters. AC/DC converter 44 may likewise include substantially any type of AC/DC power converter including, but not limited to, buck converters, boost converters, buck-boost converters, etc. Each of these power converters generally comprise a number of inductors (or transformers) for storing energy received from an input voltage source, a number of capacitors for supplying energy to a load, and a switch for controlling the energy transfer between the input voltage source and the load. The output voltage supplied to the load by the power converter may be greater than or less than the input voltage source, depending on the type of power converter used.
Among the various advantages of LED illumination devices, such as device 24 in
According to a preferred embodiment, alternative mechanisms that keep track of the time of day and send a plurality of times of day values from a timer within the remote controller 53 and/or keypad 55 is preferred. Use of timers and time of day values proves beneficial if the circadian show is to be tailored differently depending on the room in which the sunlight is being emulated. Sensors cannot tailor emulation depending on the room, but instead sense and provide emulation consistently throughout the structure depending on where the sensors are located. Grouping of illumination devices on a room-by-room basis and controlling each room separately using different keypads 55 with different associated timers within those keypads that control each room separately, with different time of day values, is therefore indigenous to timers and not sensors—an added benefit of not using sensors to control sunlight emulation in the bedroom different from the kitchen, for example.
Emulating the natural sunlight conditions involves generating a natural show through use of a timer that manipulates and updates emulation from a grouped set of LED illumination devices based on calendar day and time of day, and that functionality is performed automatically and dynamically throughout the day. The automatic emulation occurs as a dynamically changing natural show that continues automatically without user intervention, and specifically continues to change the color temperature output as a function of brightness and in response to the illumination devices receiving the time of day signal sent from the timer. Automatic emulation and the automatically changing of color temperatures as a function of brightness and time of day occurs without the user actuating a trigger, that functionality is reserved for the manual override and not the automatic natural show.
As the angular relationship between the sun and the structure containing the plurality of illumination devices changes throughout the day, the corresponding natural show must also change. Importantly, the spectral distribution of sunlight, specifically the spectral radiance of sunlight changes with path length between the sun and the structure. Shorter wavelengths can be more sensitive and produce greater spectral radiance at shorter path lengths than do longer wavelengths. In order to emulate the changes in natural sunlight conditions within an artificial lighting system, such as the present LED illumination system, or devices, the LED illumination device must change its color temperature output throughout the day based on the changing path lengths.
Each illumination device 24 communicates with the remote controller 53, the keypad 55, and other illumination devices via the communication interface 52 using a communication protocol described above as, for example, ZigBee, as well as possibly WPAN using IEEE 802.15.4. The LED illumination devices 24 can therefore wirelessly communicate with each other, as well as with the remote controller 53 and physical keypad 55. A keypad 55 controls a group of LED illumination devices. For example, a physical keypad 55a can be placed in a living room to control the group of illumination devices within the living room, whereas another keypad 55b can be placed in a bedroom to control the LED illumination devices within the bedroom.
The keypads within structure 60, and labeled 55, are generally referred to as physical keypads. As will be noted later, the physical keypads can be represented by virtual keypad icons shown on a GUI such as the GUI of remote controller 53. Likewise, the physical illumination devices 24 within a structure 60 of
Turning now to
For example, as shown in
After all of the physical LED illumination devices 24 and the physical keypads 55 and 57 have been discovered, the next step is grouping. In the grouping procedure, physical illumination devices that need to be controlled together are assigned a specific group address. As shown in
There can be different types of remote controllers 53. A remote controller 53 can simply include a dongle with a USB interface and radio plugged into the USB port of a mobile device. If remote controller 53 is to communicate through a hub or bridge, then remote controller 53 communicates using a different protocol than the protocol at which the various illumination devices 24 communicate with each other as well as the keypad 55 or 57. As will be noted herein below, the term “illumination device” or “LED illumination device” refers to the physical device, whereas whenever the use of the term “virtual” is used, that term refers to the icon representation of the physical illumination device or physical keypad on a GUI. The representation, icon, or virtual depiction on the GUI is not the physical device but nonetheless each virtual depiction corresponds to a physical device.
During the discovery phase when the broadcast discovery signal is sent from remote controller 53 through the mesh network from hop-to-hop with corresponding acknowledge-back, a routing table is formed. The broadcast discovery and acknowledge-back that forms the routing table does so having a destination address and a next hop address for each of the LED illumination devices. The routing table is stored in the storage medium of each of the LED illumination devices 24 throughout the structure 60, along with what is described later as the group addresses and the content associated with each group address. The group address and content comprise a group cast table. An example of the mechanism for forming a group cast table with data set content associated with a group of illumination devices as stored in the storage medium of each illumination device with a group is set forth and commonly assigned U.S. patent application Ser. No. 15/041,166, which is commonly assigned and herein incorporated by reference in its entirety.
The discovery process by which all of the LED illumination devices and keypads throughout the structure are found and displayed in the corresponding GUIs of a remote controller is typically only done once when the illumination devices and keypads are installed in the structure. However, if an LED illumination device 24 or a keypad 55 is replaced, that illumination device or keypad can have a different mapped address, and thus the discovery process must be repeated anytime the illumination system is modified. The structure of the illumination system, and thus the network of illumination devices and keypads, is not predetermined by installation similar to the cabling network of a wired network. Instead, it may be determined by the plurality of physical conditions, like the distance or shielding materials between neighbored illumination devices, walls, or other devices between the illumination devices 24, or even by electromagnetic interference by electric appliances or other devices within the structure 60.
To compute the network configuration, the broadcast is preferably triggered by the remote controller 53. The broadcast message is transmitted by addressing the messages to a pre-defined broadcast address, to which all physical devices (LED illumination devices 24 and keypads 55 and 57) are listening. For example, the broadcast signal can be received first by these devices that are in close proximity to the remote controller 53. Those illumination devices 24 can then forward the broadcast message to other illumination devices, which further forwards the messages to even further distal illumination devices via the aforesaid hop mechanism. The acknowledge-back signal can be transmitted as a unicast or direct message back to the remote controller 53 that sent the broadcast. Each illumination device 24 that sends such a unicast message must receive an acknowledge to prevent such illumination devices from resending the same message. Thus, the return acknowledge reply is sent by the remote controller 53 back through the mesh network, also as a unicast message.
During the discovery process, it is fairly time consuming to broadcast, receive and acknowledge back, and thereafter send an acknowledge reply. However, since the discovery process happens infrequently, and only generally during the configuration of the illumination system during initial install, or replacement, a time consumptive discovery process that takes multiple seconds is generally acceptable to the user.
Turning back to
As further shown in
Using the above simple example, there may be two A20 illumination devices in the half bath vanity, and two PAR 38 illumination devices in the overhead light. The user may wish to control these two groups of LED illumination devices 24 independently so that the vanity may illuminate separate from the overhead light. Thus, when the remote controller 53 is brought into the half bathroom, and the four virtual illumination devices 39 appear on GUI 65, a user can click on one of the virtual illumination devices and a corresponding light in, for example, the vanity may blink. The user can then simply drag and drop the virtual illumination device 39 corresponding to one of the lights in the vanity into zone 1, Z1. The same is repeated for the remaining three lights, with the vanity lights grouped into zone 1, and the overhead lights grouped into zone 2, Z2. The benefit of being able to visually detect blinking icons and their corresponding blinking physical illumination devices 24, and then based on where the LED illumination devices 24 reside within the structure, dragging and dropping the virtual illumination device in the appropriate zone is a key feature conveniently carried out using the remote controller 53. The drag and drop feature upon a GUI having a touch screen user actuation thereof can be effectuated by a simple download of an application onto the mobile device that constitutes the remote controller 53. That application can further allow the user to name the various zones on the GUI 65 for simple reference as to which group of LED illumination devices are controlled by a keypad which controls that zone.
Assigning zones to keypads is therefore the next step and is illustrated in GUI 70 of
If the keypad within the structure is the half bath keypad 55 used to control two zones, that bathroom keypad 55 comprises two portions. The two portions are shown as the virtual keypad icon 74 identical to what would appear in the physical keypad, with the first portion noted as 74a and the second portion as 74b. The first portion of the physical keypad is associated with a first gang of a two-gang switchbox and comprises, for example, seven buttons, whereas the second portion 74b comprises two buttons. As will be described below, the first portion controls, among other items, brightness of zone 1 associated with the half bath vanity, whereas the second portion 74b controls only brightness of the second zone associated with the half bath overhead light, using the above simple example. GUI 70 of remote controller 53 shown in
After LED illumination devices are grouped into zones, and the zones assigned to corresponding portions of identified keypads, scenes and shows can be created. As shown in
Color temperatures as a function of brightness and time of day are mapped along multiple dimcurves for each zone or group of zones (scene comprising illumination devices) throughout the structure so that the mapping is that of a table of color temperature and brightness values for each scene among a plurality of scenes and for each dimcurve within a plurality of dimcurves assigned to each zone or scene arranged throughout the structure. Thus, the half bath example having two zones and a single scene of two zones would have multiple scenes with corresponding color temperatures as a function of brightness mapped along multiple dimcurves. Mapping would continue for other rooms throughout the structure. As noted above, a scene represents not only a plurality of one or more zones of illumination devices, but also represents the color temperature as a function of brightness at a particular time of day mapped along a dimcurve of a series of scenes separated in time to form a natural show, with each natural show corresponding to a dimcurve and multiple dimcurves to represent different natural shows available to the two-zone, or single scene illumination devices half bath example.
Once scenes and shows are created for all of the plurality of LED illumination devices among a structure, the mapped scenes along a dimcurve, of which there can be multiple dimcurves, form multiple shows that are assigned a number, or address. For example, the created scenes and shows attributable to the half bath used to control two zones can be assigned an address for each possible scene mapped along the various dimcurves, and for each dimcurve, or show. That number, or address can then be selected in GUI 90 shown in
Turning now to
The exemplary keypad 55 of
The first of the plurality of buttons, denoted as reference numeral 100 therefore increases, decreases, turns on and turns off the brightness of only the first zone such as, for example, the lights above the half bath vanity. Yet, buttons 102 turn on and off and increases and decreases the illumination devices within both zone 1 and zone 2, and therefore the brightness of the entire scene comprising the lights above the vanity as well as the downlights within the half bath, and is labeled as BRS. The fourth of the plurality of buttons labeled 104 control the color temperature by increasing or decreasing the color temperature within both zones, and therefore controls the color temperature of the entire scene, and is labeled as CCTS+ and CCTS− for increasing and decreasing the color temperature of that scene.
As noted above, in the half bath scenario that can be controlled by a two-gang switchbox, and specifically a keypad 55 having a first portion 94 for controlling the first gang and a second portion 96 for controlling the second gang, the second gang is associated with the second zone of the half bath. The first zone can be above the vanity, whereas the second zone, or Z2, can be in the downlights separate from the vanity. Thus, Z1 can be associated with the zone that controls lights above the vanity, and Z2 can be associated with the zone that controls the downlights elsewhere in the half bath. The second portion 96 of keypad 55 associated with the second gang of the two-gang switchbox comprises a fifth of the plurality of buttons, denoted as reference numeral 105. A fifth of the plurality of buttons 105 is coupled to adjust brightness of the plurality of illumination devices within only the second zone, and not the first zone. A first button of the pair of fifth buttons 105 is coupled to turn on and increase brightness of the plurality of illumination devices within only the second zone, as noted by BR+ for the second zone Z2. A second button of the pair of fifth buttons 105 is coupled to turn off and decrease brightness of the plurality of illumination devices within only the second zone, and is labeled as BR− of the second zone Z2.
The buttons on keypad 55 can be programmed in many different ways, and the specific program of the first through the fifth of the plurality of buttons shown in
Also shown in the example of a two-gang switchbox in
Turning now to
The mapping and storage of brightness and color temperature charts or tables within the storage mediums begin by setting the time of day and timer timeout within the real-time clocks of the remote controller 53 as well as the various keypads 55 corresponding to respective groups of illumination devices 106. Once the timer timeout, that can be preset, times out after a set time of day, such as a fixed time after sunrise 108, brightness within a first group of illumination devices can be set to a maximum amount 110. The maximum brightness can be selected from the manufacturer specification sheet, for example. If the fixed time after sunrise has not yet occurred based on the timer timeout from the time of day value, then the program set forth in
Once the maximum brightness is set and color temperature is set for the first period after sunrise, the timer timeout is examined again for the next timer timeout 114. Once the next timer timeout, or time of day signal is sent from the real-time clock of the keypad after the first timeout has occurred, brightness remains at the maximum value but the color temperature is increased 116. At each timed increment after sunrise when the timer times out, an increase in color temperature occurs, and the recorded maximum brightness and stepped increase in color temperature is recorded to form the first dimcurve, or dimcurve 1.
A check is made to determine if the color temperature has reached a maximum amount, and if it has not, as shown by decision block 120, then the timer precedes to the next timeout, or time of day, and the color temperature continues to increase and the corresponding maximum brightness value and increasing color temperatures along the first dimcurve are recorded, or mapped in a table of first dimcurve values of maximum brightness and increasing color temperatures.
If the maximum color temperature has been reached as indicated by decision block 120, then the next timer timeout 122 must be one that produces a decrease in color temperature 124, with a corresponding recordation of a decrease in color temperature as a function of maximum brightness along the first dimcurve 126. Accordingly, the first dimcurve (dimcurve 1) indicates at fixed time intervals and increasing color temperature for the maximum brightness until a maximum color temperature is reached and thereafter a periodic decrease in color temperature for that maximum brightness. The increasing and thereafter decreasing color temperature for maximum brightness is mapped within a table that is stored in the storage medium of each of the group of illumination devices, that group being the first group of illumination devices. If a fixed time before sunrise has not occurred 128, then the process of looking for that timer timeout continues until such time as sunset occurs 130.
The time of day and timer timeout is therefore reset 130 to examine again whether a fixed time after sunset 132 has occurred. If a fixed time after sunrise has occurred, then the brightness is reduced from the set maximum brightness value, as shown by block 134. The process is therefore repeated beginning at the fixed time after sunrise of increasing color temperature until a maximum color temperature is reached, and thereafter decreasing the color temperature to a fixed time before sunset, albeit for a reduced brightness, to form a second dimcurve (dimcurve 2). Accordingly, the mapped table of brightness values and color temperatures between sunrise and sunset are stored in the storage medium of the first group of illumination devices containing a first mapped table of a first dimcurve, followed by a second dimcurve. The only difference between the first and second dimcurve, however, is the reduction in brightness value, whereby the second dimcurve has a lower brightness value than the first dimcurve.
At regular periodic timed intervals along each of the first, second, third, etc. dimcurves associated with the first group of illumination devices are color temperatures as a function of brightness. Those color temperatures increase from sunrise to approximately noontime, and thereafter decrease to sunset. If charted on a graph, the dimcurves would be those that appear on GUI 80 shown in
The flow diagram set forth in the software instructions of
Turning now to
Once the brightness value is increased or decreased to the appropriate level either in the first zone or the second zone, and the color temperature of both zones which form the scene is adjusted to the appropriate level as noted in blocks 112, 114 and 116, then both buttons of the second of the plurality of buttons 102 are depressed simultaneously in block 118. Depressing both buttons in the second of the plurality of buttons 102, and specifically the ALL ON+ and ALL OFF− buttons, then the brightness and color temperatures of each zone and the entire scene can be pre-set at block 120. Simultaneous depression must occur for at least three seconds in order to pre-set the scene to whatever levels are established by blocks 112-116.
The process set forth in blocks 112-120 can be repeated for other zones and scenes throughout the structure to pre-set the brightness and/or color temperatures for respective zones and scenes throughout the house. However, presetting a scene to a particular brightness and color temperature assumes that the show is not enabled, and therefore button 103 has not been depressed. A light next to button 103 indicating a show is on, is off. Once the show is disabled for a group of illumination devices controlled by a particular keypad, the illumination devices can be pre-set by depressing the appropriate buttons of the keypad controlling those illumination devices and therefore presetting the brightness and/or color temperature of the illumination devices to a particular level, and the process is repeated for other groups of illumination devices throughout the structure.
With a scene illumination output pre-set, whether simply one group of illumination devices or multiple groups of illumination devices throughout the structure, the show must remain disabled as indicated by block 122, and any subsequent depression of the ALL ON+ button will increase the brightness of the scene to the scene pre-set value, as shown by blocks 124 and 126. The scene pre-set value can include the brightness and/or color temperatures of the scene established by blocks 112-116.
At any time when the show is disabled 122, the ALL OFF− button 102 can be depressed as shown by block 128, and the corresponding brightness of the scene will be decreased 130. Moreover, any depression and holding of the color temperature button, either CCT+ or CCT− in block 132 will increase or decrease the color temperature of the scene 134. The zones can also be individually controlled, and if the show is disabled 122, either zone 1 or zone 2 can be increased or decreased in brightness by depressing and holding the appropriate button within the first plurality of buttons 100 or the fifth plurality of buttons 105, shown by block 136 to increase or decrease the brightness of the corresponding zone 138.
The blocks shown in
Turning now to
Alternatively, the brightness and color temperature values can be set for only one zone of multiple zones of illumination devices within a scene by depressing the ON+ button twice 156. The show will then start to be automatically defined in fixed scene for that show depending upon the time of day and, specifically for either the first zone or the second zone depending upon which ON+ button 100 or 105 is depressed. That show will start for the current scene and specifically for the particular zone as shown by block 158.
It may be desirable to momentarily, persistently, or permanently modify or override a show. For example, if the ALL ON+ button 102 is depressed and held, but not depressed twice, as shown in block 160 either the brightness of the scene for that time of day, the color temperature for that time of day, or both are increased to the brightness and color temperature values set for that scene at that particular time of day, and up to those values depending on how long the ALL ON+ button is depressed, as shown by blocks 162 and 164. Since the ALL ON+ button was not depressed twice, but is only depressed and held, the amount in which that button is held will determine the amount by which the brightness of the scene at that particular time of day in which the button was depressed will be increased, the same can be said for the color temperature depending upon the amount of time in which the CCTS+ button 104 is depressed. Conversely, the color temperature can be decreased depending upon the amount of time in which CCTS− button is held thereby decreasing color temperature proportional to that amount of time. The flow 160, 162 and 164 illustrate the override of the show by not activating the show but yet increasing or possibly decreasing the brightness and color temperature for that particular scene at that particular time within the show. For example, a user may wish to reduce the brightness in the kitchen during midday by depressing the ALL OFF− to decrease the brightness within the kitchen at 11:00 a.m. and therefore change the scene that would normally appear at 11:00 a.m. Additionally, the user may wish to decrease the color temperature by depressing the CCTS− button at 11:00 a.m. to more of an incandescent, warm white than the normally present natural white color temperature. Conversely, the brightness of the kitchen scene can also be increased as well as the color temperature by simply depressing the ALL ON+ by depressing and holding the ALL ON+ for a particular amount of time and therefore increasing the brightness at, for example, 7:00 a.m. from a lower dimcurve value to a higher dimcurve value and therefore also increasing the color temperature from, for example, 2300K to 3000K. Thus, the block 160 can pertain to depressing the ALL ON+ or the ALL OFF− button to increase, or decrease, brightness for the current scene at that particular time of day and to override the show, and to maintain that override until, for example, the ALL ON button 102 is depressed twice 166 to then resume the show 168. The flow, beginning at block 160 and ending at block 168 indicates a momentary override of the natural show, if the natural show was previously enabled. When the all ON+/− is depressed and held, the brightness of the first zone or both zones (both zones within the scene) ramp up or down in brightness. If the ALL ON+ is depressed and held, the ramp up will be that which occurs until the natural show brightness is reached for that particular time of day. Subsequently, the ALL ON buttons will operate as if the natural show is OFF to override the show. It is not until the ALL ON+ button is thereafter depressed twice will the show resume. In the interim, however, the momentary override occurs, and that override can allow manual control of both in brightness and/or color temperature up to a natural show brightness and color temperature for that time of day, or down to zero.
The control of multiple zones of a scene, and the momentary override of a show set forth in flow 160-168 is replicated in blocks 170-178. Specifically, the only difference between blocks 160-168 and blocks 170-178 is the control of one zone, rather than the control of possibly multiple zones. The blocks 170-178 pertain to the control of a single zone, whether that control is of zone one, or zone two. Contrary to the ALL ON+/− button, there also can exist an ON+/− button and, depending on whether the button being depressed and held is the button on the first portion or the second portion, either the first zone or the second zone can undergo a momentary override. If the ON+ button is depressed and held, the amount of time in which that button is held in block 170 will dictate the amount of increase of brightness for that particular zone, whether the first zone or the second zone, is increased for the current scene within the show. That amount of increase will extend upward to the brightness of the show at that particular time of day in which the button was depressed and held. Conversely, the ON− button can be depressed and held to decrease the brightness for the current scene within the show and to maintain that override and to momentary maintain that override until the button is again depressed twice 176. Color temperature for a particular zone depending upon which button was depressed, either the button of the first zone or the button of the second zone, to increase or decrease color temperature 174 again, until the ON+ button is depressed twice and the show resumes, at blocks 176 and 178. Like the scene momentary override in flow 160-168, the zone override within a particular scene at a particular time of day at blocks 170-178 exist until the show is resumed, and the amount of override or change in either brightness and/or color temperature depends upon the amount of time in which the ON+/− or CCT+/− buttons are depressed. Until the ALL ON+ or the ON+ button is depressed twice, the brightness increase/decrease and color temperature increase/decrease buttons will operate as if the natural show was not on. That is, until the ALL ON+ or the ON+ buttons are depressed twice. The override of the current scene of multiple zones, or simply a single zone occurs either momentarily until the ALL ON+ or ON+ buttons are depressed twice. However, if the ALL ON+ or ON+ buttons are not depressed within a timeout period, the change in the current scene will automatically revert back to the show once that timeout has expired. Thus,
While the timeout period for the persistent change can be several minutes to several hours, preferably, the pre-determined time in which the show button 103 is depressed is preferably less than 10 seconds but more than three seconds. By depressing the show button 103 less than 10 seconds, whatever the brightness in color temperature value is for the scene or the particular zone within the scene of illumination devices is fixed into the memory of the corresponding illumination devices depending on when the ALL ON+ or ON+ buttons are depressed and held and the show button is thereafter depressed for a pre-determined time. All of the current scenes in that interim timeframe are permanently changed. Alternatively, only the scene nearest the time of day in which the show button 103 is depressed and held is changed. That scene being the current scene within a show. Moreover, that current scene within a show is changed to the new brightness value and/or color temperature value established by the amount of time in which the ALL ON, CCT+/− buttons were depressed.
The current scene change is permanently recorded into the storage medium 56 as the corresponding illumination devices, as shown by blocks 190 and 192. The current scene is therefore permanently changed such that whenever the show is thereafter activated, the scene at that particular time of day that has undergone a permanent change will cause the show forever thereafter at that time of day to display the permanently changed brightness in color temperature values for that time of day. For example, if the show button 103 is depressed a pre-determined amount of time at 11:00 a.m., whatever the brightness and color temperature values that have been changed prior to that time and during that time will be recorded. The next day, at 11:00 a.m., the previous show will now be changed so that at 11:00 a.m., the new scene is displayed. Rather than the old scene, that new scene takes on the brightness and color temperature values established in one or more zones of illumination devices at blocks 160-164 and 170-174. That new scene will now play at that time of day, everyday thereafter, until possibly permanently changed again. Other scenes before and after will be adjusted to provide a smooth change in color temperature and brightness over the course of the day. For instance, if at 8:00 p.m., the color temperature is reduced from 2500 to 2200, the color temperatures of all scenes in the show from before sunset to the middle of the night will be reduced accordingly. The color temperatures during the morning, noontime, and the middle of the night may remain unchanged. According to one embodiment,
Turning now to
Determining the number N preceding and subsequent to the currently changed scene is pre-determined, and is preferably three or less. Therefore, if the changed, current scene is at 11:00 a.m., if there are scenes at 7:00 a.m. and 9:30 a.m. that precede the current scene, those two scenes are also changed so that the resulting dimcurve leading up to the current scene change is not disjointed, as shown in
As noted in
When a scene is permanently changed as shown by blocks 190 and 192 in
Only a portion of the second dimcurve 210 is fetched from each of the group of illumination devices being controlled, and that second portion comprises N number of scenes preceding the changed scene in N number of scenes succeeding the changed scene to provide a smooth and non-disjointed second natural show having scenes on a second dimcurve immediately preceding and succeeding the current scene, yet maintaining all of the scenes along the first dimcurve 208 before the preceding N scenes and after the succeeding N scenes.
According to one embodiment, the pre-defined distance of the point on the second dimcurve, shown as 212 is preferably less than 5% of the color temperature of the scene on the second dimcurve at the particular time of day for that current scene. For example, if the time of day is 11:00 a.m., and the current scene change changes from the first dimcurve 208 having a higher color temperature as a function of brightness to dimcurve 210 having lower color temperature as a function of brightness, the new current scene may not have a color temperature precisely on the second dimcurve. Instead, the current scene color temperature as a function of brightness can be within a pre-defined distance 212 of the second dimcurve 210. If that pre-defined distance is less than 5% of the color temperature of the scene on the second dimcurve at 11:00 a.m., then the current scene is placed on the second dimcurve nonetheless, as well as all preceding N scenes and succeeding N scenes. For example, if the color temperature along the second dimcurve at 11:00 a.m. for the current scene of the first dimcurve is 4000K, whereas the second dimcurve at 11:00 a.m. the color temperature is 3800K, if the current scene change decreases brightness and/or color temperature to that of a color temperature within 5% of the color temperature for that scene at 11:00 a.m., or 5% of 3800K=190K then the current scene will be placed on the second dimcurve as well as the preceding and succeeding N scenes. Accordingly, the pre-defined distance is less than 5%, or an absolute value is less than 190K, and more preferably less than 2%, or approximately 70K. As shown in
Even though different groups of illumination devices within a structure have different dimcurves and different natural shows a global override of all or multiple groups of illumination devices can occur through use of a singular, global keypad, such as keypad 57 shown in
The global keypad comprises at least one of the plurality of buttons, and that button preferably comprises an away button. The away button is used to activate a sensor to detect movement with the structure and, in response to that movement, to turn on and off an automatic periodic succession the select ones of multiple groups of illumination devices throughout a structure. The turning on and turning off an automatic, periodic succession is referred to herein as a panic show. The panic show will therefore override the various natural shows that can occur in different groups of illumination devices whenever, for example, a sensor detects an intruder within the structure, or within a perimeter of the structure.
The button on the global keypad 57 therefore can activate an away mode for detecting movement or, alternatively, when not activated, the button can enable a natural show. Therefore, depending on the state of that button on the global keypad, either a natural show of automatically and periodically changing color temperature as a function of brightness at different times of day along a selected dimcurve occurs prior to enabling the panic show when an intruder is detected. Thus, in the away mode, the natural show can continue and, when an intruder is detected, the natural show automatically changes to the panic show. Activation of the away mode to enable the natural show prior to sensing an intruder can occur through a single depression on a button and a light on the global keypad will indicate the away mode is enabled. Alternatively, the button can enable a static scene from select ones of the multiple groups of illumination devices prior to enabling the panic show when an intruder is detected. Thus, prior to detecting an intruder, the button can be illuminated to indicate an away mode, and to maintain the brightness in color temperature the same for the select ones of the multiple groups of illumination devices prior to sensing the intruder and, once an intruder is detected, the panic show is enabled. According to an alternative embodiment, the panic show can comprise turning on and off an automatic, time succession select ones of multiple groups of illumination devices throughout, as well as outside the structure, or simply initiating a change in color of the select ones of the multiple groups of illumination devices.
It will be appreciated to those skilled in the art having the benefit of this disclosure that this invention is believed to provide an improved illumination system and method that not only allows mapping of dimcurves for each of multiple groups of illumination devices into the corresponding illumination devices, but also using those mapped dimcurves to allow modification of any and all natural shows throughout a structure when an intruder is detected. A remote controller with a graphical user interface provides the ease by which mapping of dimcurve tables takes place, and multiple keypads assigned to groups of illumination devices allows easy momentary and persistent changes, as well as permanent changes, to the various scenes which form a natural show along the dimcurve. Further modifications and alternative embodiments of various aspects of the invention will be apparent to those skilled in the art in view of this description. It is intended, therefore, that the following claims be interpreted to embrace all such modifications and changes.
This application is related to co-pending applications filed concurrently herewith under Ser. No. 15/265,203, entitled “Keypad With Color Temperature Control As A Function Of Brightness Among Scenes and The Momentary Or Persistent Override And Reprogram Of A Natural Show And Method Thereof”, and Ser. No. ______, entitled “Illumination System and Method That Presents A Natural Show To Emulate Daylight Conditions With Smoothing Dimcurve Modification Thereof.”
