Configurable modes for lighting systems

A luminaire can include an antenna and a first communication mode that is configured to communicate with an external system. The luminaire can also include a second communication mode that is configured to communicate with the external system. The luminaire can further include a switch coupled to the antenna, the first communication mode, and the second communication mode, where switch has a first position and a second position, where the switch, when in the first position, couples the first communication mode with the antenna, and where the switch, when in the second position, couples the second communication mode with the antenna.

TECHNICAL FIELD

Embodiments of the technology relate generally to lighting systems and more specifically to lighting systems that can be readily configured to utilize multiple communication and/or other modes of operation.

BACKGROUND

Different communication modes can be used for communication involving luminaires. For example, Zigbee can be used to communicate with a luminaire. As another example, Bluetooth can be used to communicate with another luminaire. Communication with a luminaire can be used for any of a number of purposes, such as providing operating instructions to the luminaire (or components thereof) and obtaining data from the luminaire.

SUMMARY

In general, in one aspect, the disclosure relates to a luminaire that includes an antenna and a first communication mode that is configured to communicate with an external system. The luminaire can also include a second communication mode that is configured to communicate with the external system. The luminaire can further include a switch coupled to the antenna, the first communication mode, and the second communication mode, where switch has a first position and a second position, where the switch, when in the first position, couples the first communication mode with the antenna, and where the switch, when in the second position, couples the second communication mode with the antenna.

In another aspect, the disclosure can generally relate to a switch for controlling a communication protocol of a luminaire. The switch can include a body and at least one first coupling feature disposed on a bottom end of the body, where the at least one first coupling feature is configured to electrically couple to an electrical connector of the luminaire. The switch can also include an actuator that has a first position and a second position relative to the body. The first position of the actuator can correspond to a first communication protocol of the luminaire, and the second position of the actuator can correspond to a second communication protocol of the luminaire.

In general, in one aspect, the disclosure relates to a luminaire that includes a housing and a lens removably coupled to the housing. The luminaire can also include a first light source having a first color temperature, and a second light source having a second color temperature. The luminaire can further include a switch coupled to the housing, the first light source, and the second light source, where the switch is accessible when the lens is decoupled from the housing, where the switch is inaccessible when the lens is coupled to the housing. The switch can have a first position and a second position, where the switch, when in the first position, provides power to the first light source, and where the switch, when in the second position, provides power to the second light source.

DETAILED DESCRIPTION OF EXAMPLE EMBODIMENTS

In some example embodiments of the disclosure, a luminaire can comprise multiple communication modes. The power supply can utilize a switching scheme that can select one of multiple communication modes used by a luminaire. In addition, or in the alternative, the power supply can utilize a switching scheme that can select one of multiple output levels (e.g., correlated color temperature (CCT)) of a luminaire.

In some example embodiments, the various communication and/or operational (e.g., CCT) modes of a luminaire can be set at the factory, at distribution, or in the field. To meet current and emerging code compliance, performance markings on a luminaire can indicate and correspond to the desired communication and/or operational mode(s). Economical, field-installed nameplates can identify the various electrical ratings and communication and/or operational modes, and when the luminaire is installed, permanently program the communication and/or operational modes. Other settings, such as dimming protocols, can likewise be configured. The interface between the nameplate and internal logic can use mechanical, electrical or optical means, for example.

Accordingly, in some embodiments of the disclosure, the technology provides product markings and supports regulatory compliance. For example, nameplates can indicate energy codes and rebate opportunities, for compliance with product labeling and to facilitate compliance confirmation by local authorities who may have jurisdiction. Further, luminaires that include example switches can be subject to meeting certain standards and/or requirements. For example, Underwriters Laboratories (UL), the National Electric Code (NEC), the National Electrical Manufacturers Association (NEMA), the International Electrotechnical Commission (IEC), the Federal Communication Commission (FCC), the Illuminating Engineering Society (IES), and the Institute of Electrical and Electronics Engineers (IEEE) set standards as to luminaires. Use of example embodiments described herein meet (and/or allow a corresponding luminaire to meet) such standards when required.

If a component of a figure is described but not expressly shown or labeled in that figure, the label used for a corresponding component in another figure can be inferred to that component. Conversely, if a component in a figure is labeled but not described, the description for such component can be substantially the same as the description for the corresponding component in another figure. Further, a statement that a particular embodiment (e.g., as shown in a figure herein) does not have a particular feature or component does not mean, unless expressly stated, that such embodiment is not capable of having such feature or component. For example, for purposes of present or future claims herein, a feature or component that is described as not being included in an example embodiment shown in one or more particular drawings is capable of being included in one or more claims that correspond to such one or more particular drawings herein.

Example embodiments of configurable communication and/or operational modes for lighting systems will be described more fully hereinafter with reference to the accompanying drawings, in which example embodiments of configurable communication and/or operational modes for lighting systems are shown. Configurable communication and/or operational modes for lighting systems may, however, be embodied in many different forms and should not be construed as limited to the example embodiments set forth herein. Rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of configurable communication and/or operational modes for lighting systems to those of ordinary skill in the art. Like, but not necessarily the same, elements (also sometimes called components) in the various figures are denoted by like reference numerals for consistency.

Terms such as “first”, “second”, “top”, “bottom”, “side”, and “within” are used merely to distinguish one component (or part of a component or state of a component) from another. Such terms are not meant to denote a preference or a particular orientation, and are not meant to limit embodiments of configurable communication and/or operational modes for lighting systems. In the following detailed description of the example embodiments, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to one of ordinary skill in the art that the invention may be practiced without these specific details. In other instances, well-known features have not been described in detail to avoid unnecessarily complicating the description.

Referring now toFIG. 1, multiple views of the luminaire100are shown.FIG. 1Aillustrates a side perspective view of the luminaire100.FIG. 1Billustrates a top perspective view of the luminaire100.FIG. 1Cillustrates a view of the light-emitting bottom of the luminaire100, showing a lens120in a light-emitting aperture115of the luminaire100.FIG. 1Dillustrates a view of the light-emitting bottom of the luminaire100with the lens120removed from the light-emitting aperture115of the luminaire.FIG. 1Eillustrates a view of the light-emitting bottom of the luminaire100with the lens120and an associated reflector130removed from the light-emitting aperture115of the luminaire.FIG. 1Fillustrates a cutaway perspective view of the luminaire100.FIG. 1Gillustrates another cutaway perspective view of the luminaire100.FIG. 1Hillustrates another cutaway view of the luminaire100.FIGS. 1I, 1J, and 1Kprovide detailed views of a portion of the luminaire100comprising a cover126and an associated access aperture129for providing internal access to the luminaire100. InFIG. 1I, the cover126is fully removed. InFIG. 1J, the cover126is positioned adjacent the access aperture129, for example in connection with attachment or removal of the cover126. InFIG. 1K, the cover126is attached to the luminaire100.

As best seen in the views ofFIGS. 1A and 1B, the illustrated example luminaire100is suited for inserting in an aperture in a ceiling to provide overhead lighting. In this example embodiment, the luminaire100can be characterized as an overhead light or a recessed ceiling light. Various other indoor and outdoor luminaires that may be mounted in a wide range of orientations can be substituted for the luminaire100illustrated inFIG. 1.

The illustrated example luminaire100ofFIG. 1comprises a housing105that is circular with a protruding trim110that extends circumferentially about the housing105. When the luminaire100is installed in a ceiling aperture, the rim100circumscribes and covers the edge of the ceiling aperture for aesthetics, for support, and for blocking of debris from above the ceiling. Hanger clips102hold the luminaire100in place in installation.

As best illustrated inFIGS. 1I, 1J, and 1K, the example luminaire100comprises an access aperture129and an associated cover126. The access aperture129provides access to the interior of the luminaire housing105, for example in the field and/or during luminaire installation. An installer can remove the cover126and manually set an example switch131(in this case, a dual inline pin (DIP) switch) to configure the communication mode used by the luminaire100. As illustrated, the switch131is mounted on a circuit board adjacent the access aperture129, thereby facilitating convenient and efficient access in the field or at a distribution center, for example.

An electrical cable127extends through a wiring aperture103in the cover126. The electrical cable127terminates in a plug132that mates with a receptacle133that is mounted inside the housing105adjacent the access aperture129for convenient field access. In this example, the example cover126includes two notches123,124that each receives a respective screw128for holding the cover126in place. The notch123is disposed on the right side of the cover126and is sized to receive one of the screws128. Meanwhile, the notch124is disposed on a left side of the cover126and is sized to receive the other screw128.

The left notch124and the right notch123are oriented so that the cover126is rotatable about the right screw128when the right screw128is loosely disposed in the right notch123. In other words, cover rotation can occur when the right screw128is in the right notch123with threads engaged but prior to tightening. In this position, the cover126can rotate clockwise about the right screw128. Thus, the right screw128provides an axis of rotation for the cover126. This clockwise rotation facilitates convenient manipulation of the cover126by a person working the cover126to cover the access aperture129, with the screws128engaged but not fully tightened. The clockwise rotation of the cover126about the right screw128provides the person with a capability to slide the left notch124of the cover126conveniently under the head of the left screw128. Once the cover126is rotated so the left notch124is under the head of the left screw128, the person (for example an installer) can tighten the two screws128to secure the cover126.

To remove the cover126, the person loosens the two screws128and then rotates the cover126counterclockwise about the right screw128so that the left notch124moves out from under the head of the left screw128. Once the left notch124is free from the left screw128, the installer can pull the right notch123out from under the right screw128to fully remove the cover126.

As best seen in the views ofFIGS. 1A, 1C, 1F, and 1G, the lens120of the luminaire100is positioned adjacent the lower, exit side of the light-emitting aperture115. As illustrated, the lens120can mix and blend light emitted by two groups of light emitting diodes150,155, with each group having the same or a different color temperature. The group of light emitting diodes150can be characterized as one light emitting diode light source, while the group of light emitting diodes155can be characterized as another light emitting diode light source. Other embodiments of a light emitting diode light source may have a single light emitting diode or more light emitting diodes than the embodiment illustrated inFIG. 1. A reflector130is disposed in and lines the aperture115to guide and manage the emitted light between the light emitting diodes150,155and the lens120. In some embodiments, an upper lens (not illustrated) replaces the reflector130.

The light emitting diodes150,155are mounted on a substrate125, for example a circuit board, and form part of a circuit. In the illustrated embodiment, the light emitting diodes150,155are interspersed. In other embodiments, the light emitting diodes150,155may be separated from one another or spatially segregated according to color temperature or other appropriate parameter. As discussed in further detail below, the circuit200supplies electricity to the light emitting diodes150,155with a level of flexibility that facilitates multiple configurations suited to different applications and installation parameters.

FIGS. 2A-2Cshow a luminaire200that includes a switch231in accordance with certain example embodiments. Specifically,FIG. 2Ashows a top-side perspective view of the luminaire200.FIG. 2Bshows a partially-exploded top-side perspective view of a circuit board assembly299of the luminaire600.FIG. 2Cshows a top-side perspective view of the switch231.

Referring toFIGS. 1A-2C, the luminaire200ofFIG. 2Acan include a housing205that is cylindrical in shape, having a top surface206and a side surface207. Coupled to the bottom end of the housing205ofFIG. 2Acan be a trim210. The housing205can be made of one or more of a number of thermally conductive materials (e.g., stainless steel, aluminum). In such a case, the housing205can act as a heat sink, absorbing heat generated by one or more components (e.g., LEDs, power modules, hardware processor, energy storage device) in thermal communication with the housing205, and subsequently dissipating the absorbed heat into the ambient environment.

As with the luminaires discussed above, the luminaire200can include one or more of a number of other components. Such components can be disposed within a cavity formed by the housing205, disposed on a portion (e.g., the housing205, the trim210) of the luminaire200, and/or physically remote from but in communication with the luminaire200. In this case, as shown inFIGS. 2A-2C, some of those other components include a switch231and a number of other electrical components263(e.g., controller, capacitors, resistors, diodes, transistors, integrated circuits, hardware processor) disposed on a substrate225.

The substrate225, the electrical connector229, the other electrical components263, and part of the switch231in this case are disposed within a cavity formed by the housing205. In order for a user to be able to access the switch231, at least part of the switch231can be disposed within and protrude through an aperture275in a wall (in this case, the top surface206) of the housing205. As an alternative, part of the switch231can protrude through an aperture in the side surface207of the housing205. Permitting a user to access the switch231protruding through the aperture275in the housing205facilitates configuration of the communication mode of the luminaire200and avoids the need to open and/or disassemble the luminaire200, as was the case inFIGS. 1A-1K.

The example switch231can be used to select one or more of a number of variables that affect the operation of the luminaire200. For example, the switch231can be used to select one of a number of CCTs. The switch231can be any of a number of types of switches, including but not limited to one or more DIP switches, one or more SIPP switches, one or more rocker switches, one or more reed switches, one or more magnetic switches, one or more rotary switches, one or more rotary dials, one or more selectors or selector switches, one or more slide switches (as shown inFIG. 2C), one or more snap switches, one or more thumbwheels, one or more toggles or toggle switches, one or more keys or keypads, and one or more buttons or pushbuttons.

As mentioned above, the switch231ofFIGS. 2A-2Cis a slide switch. The switch231has a body271and a number of coupling features272(in this case, pins) disposed on the bottom of the body271that allow the switch231to become electrically coupled to an electrical connector229on the substrate225(and therefore also to one or more of the other components263mounted on the substrate225, such as a controller, as described above). In some cases, adjacent to the coupling features272can be disposed one or more mechanical coupling features279(e.g., tabs, posts). In such a case, mechanical coupling features279can act as guides to properly position and align the coupling features272of the switch231relative to an electrical connector229mounted on the substrate225. At the top end of the body271is an actuator273that extends outward from a plate276. The plate276is disposed within the body271and has a length that is less than the length of the body271. The plate276also corresponds to a slot274that traverses the top end of the body271. The actuator273extends through the slot274and can be accessible by a user.

The switch231can include a number of detents and/or other features to limit or create discrete stopping locations for the actuator273(and so also the plate276) along the length of the slot274. Each of these detents and/or other features can be associated with a certain value of a variable that affects the operation of the luminaire200. For example, if the switch231is used to select a communication mode of the luminaire, the left end281of the slot274can be associated with Zigbee, detent283at the middle of the slot274can be associated with standard Bluetooth, and the right end285of the slot274can be associated with Bluetooth Low Energy (BLE).

Example switches231can be used with a new luminaire200. Alternatively example switches231can be retrofit into existing luminaires. Also, whileFIGS. 2A-2Cshow that the switch231is disposed within and coupled to the housing205, the switch231can alternatively be disposed entirely within the housing205(as inFIGS. 1A-1K) and/or coupled to some other portion (e.g., the trim210) of the luminaire200. In some cases, a luminaire can be manufactured without the switch, but with the ability to receive an example switch at a later time (e.g., during installation). For example,FIG. 3shows a luminaire300that is configured to receive a switch in accordance with certain example embodiments. Referring toFIGS. 1A-3, the luminaire300can be substantially the same as the luminaires discussed above, except as described below.

For example, the luminaire300ofFIG. 3can include a housing305that is cylindrical in shape, having a top surface306and a side surface307. Coupled to the bottom end of the housing305ofFIG. 3can be a trim310. Further, hanger clips302can be used to hold the luminaire300in place upon installation. In this case, the example switch is not coupled to the luminaire300. Instead, there is a removable plug389disposed in the aperture375that traverses the top surface306of the housing305. The removable plug389can be used to keep dust and other elements in the ambient environment from entering the cavity formed by the housing305.

In such a case, when a user (e.g., an installer, an electrician, a homeowner) wants to install an example switch on the luminaire300, the removable plug389can easily be removed (with or without a tool), and the example switch can be inserted into the connector inside the housing305that is subsequently exposed. Example switches can be incorporated into any of a number of different types of luminaires (light fixtures). For instance, as shown inFIGS. 2A-3, example switches can be used with down light fixtures. Other types of luminaires that can be used with example switches can include, but are not limited to, troffer lights, under cabinet lights, pendent lights, recessed lights, and wall scones.

FIGS. 4A and 4Bshow a lighting system498that includes a luminaire400and a control module404in accordance with certain example embodiments. The lighting system498can include a power source495, a user450, a network manager480, and the luminaire400. In addition to the control module404, the luminaire400can include a power supply440, a number of light sources442, one or more antennae488, and one or more optional sensors460. The communication module408of the control module404can include one or more switches431and multiple communication modes490(e.g., communication mode490-1, communication mode490-N).

As shown inFIGS. 4A and 4B, aside from the switch431and the communication module408, the control module404can include one or more of a number of components. Such components, can include, but are not limited to, a controller406, a timer410, an energy metering module411, a power module412, a storage repository430, a hardware processor420, a memory422, a transceiver424, an application interface426, and, optionally, a security module428. The components shown inFIGS. 4A and 4Bare not exhaustive, and in some embodiments, one or more of the components shown inFIG. 4Bmay not be included in an example light fixture. Any component of the example luminaire400can be discrete or combined with one or more other components of the luminaire400.

Referring toFIGS. 1-4B, a user450may be any person that interacts with light fixtures (e.g., luminaire400) and/or example control modules (e.g., control module404). Examples of a user450may include, but are not limited to, an engineer, an electrician, an instrumentation and controls technician, a mechanic, an operator, a property manager, a homeowner, a tenant, an employee, a consultant, a contractor, and a manufacturer's representative. The user450can use a user system (not shown), which may include a display (e.g., a GUI). The user450interacts with (e.g., sends data to, receives data from) the control module404of the luminaire400via the application interface426(described below). The user450can also interact with a network manager480, the power source495, and/or one or more of the sensors460. Interaction between the user450, the luminaire400, the network manager480, and the sensors460can be conducted using communication links405.

Each communication link405can include wired (e.g., Class1electrical cables, Class2electrical cables, Ethernet cables, electrical connectors, electrical conductors) and/or wireless (e.g., Wi-Fi, visible light communication, cellular networking, Bluetooth, Bluetooth Low Energy (BLE), Zigbee, WirelessHART, ISA100, Power Line Carrier, RS485, DALI) technology. One or more of these technologies can be a communication mode490, described below. For example, a communication link405can be (or include) a wireless link between the control module404and the user450. The communication link405can transmit signals (e.g., power signals, communication signals, control signals, data) between the luminaire400and the user450, the power source495, the network manager480, and/or one or more of the sensors460.

The network manager480is a device or component that controls all or a portion (e.g., a communication network) of the system498that includes the control module404of the luminaire400, the power source495, the user450, and the sensors460. The network manager480can be substantially similar to the control module404, or portions thereof, as described below. For example, the network manager480can include a controller. Alternatively, the network manager480can include one or more of a number of features in addition to, or altered from, the features of the control module404described below. As described herein, communication with the network manager480can include communicating with one or more other components (e.g., another light fixture) of the system498. In such a case, the network manager480can facilitate such communication.

The power source495of the system498provides AC mains or some other form of power to the luminaire400, as well as to one or more other components (e.g., the network manager480) of the system498. The power source495can include one or more of a number of components. Examples of such components can include, but are not limited to, an electrical conductor, a coupling feature (e.g., an electrical connector), a transformer, an inductor, a resistor, a capacitor, a diode, a transistor, and a fuse. The power source495can be, or include, for example, a wall outlet, an energy storage device (e.g. a battery, a supercapacitor), a circuit breaker, and/or an independent source of generation (e.g., a photovoltaic solar generation system). The power source495can also include one or more components (e.g., a switch, a relay, a controller) that allow the power source495to communicate with and/or follow instructions from the user450, the control module404, and/or the network manager480.

The power source495can be coupled to the power supply440of the luminaire400. In this case, the power source495includes one or more communication links405(e.g., electrical conductors), at the distal end of which can be disposed a coupling feature (e.g., an electrical connector). The power supply440of the luminaire400can also include one or more communication links405(e.g., electrical conductors, electrical connectors) that complement and couple to the power source495. In this way, the AC mains provided by the power source495is delivered directly to the power supply440of the luminaire400.

The one or more optional sensors460can be any type of sensing device that measures one or more parameters. Examples of types of sensors460can include, but are not limited to, a passive infrared sensor, a photocell, a differential pressure sensor, a humidity sensor, a pressure sensor, an air flow monitor, a gas detector, and a resistance temperature detector. Parameters that can be measured by a sensor460can include, but are not limited to, movement, occupancy, ambient light, infrared light, temperature within the light fixture housing, and ambient temperature. The parameters measured by the sensors460can be used by the controller406of the control module404and/or by one or more other components (e.g., the power supply440) of the luminaire400to operate the luminaire400. A sensor460can receive power and/or control signals from the power source495and/or the control module404(e.g., through the power module412) using communication links405.

The one or more antennae488are used to enhance the range that the luminaire400can communication with another component (e.g., a user450, the network manager480) of the system498. An antenna488can be disposed on the housing or within the housing of the luminaire400. The antenna can have a high profile (e.g., extend from the housing of the luminaire400) or a low profile (e.g., integrated on a circuit board within the housing of the luminaire400). If there are multiple antennae488, the controller406can determine when a particular antenna488is utilized and with which communication mode490an antenna488is used.

The controller406of the control module404can be configured to communicate with (and in some cases control) the sensor460. In some other cases, a sensor460can be part of the control module404, where the controller406of the control module404can be configured to communicate with (and in some cases control) the sensor460. As yet another alternative, a sensor460can be a new device that is added to the luminaire400, where the controller406of the control module404is configured to communicate with (and in some cases control) the sensor460. The controller406and a sensor460can be coupled to each other using communication links405. Each sensor460can use one or more of a number of communication protocols432that are known and used by the control module404.

The user450, the network manager480, the power source495, and/or the sensors460can interact with the control module404of the luminaire400using the application interface426in accordance with one or more example embodiments. Specifically, the application interface426of the control module404receives data (e.g., information, communications, instructions, updates to firmware) from and sends data (e.g., information, communications, instructions) to the user450, the network manager480, the power source495, and/or each sensor460. As explained below, the control module404has a communication module408that includes multiple communication modes490(e.g., communication mode490-1, communication mode490-N) that are used by the control module406to communicate with one or more other components (e.g., the user450, the network manager480) in the system498. A particular communication mode490is selected using the switch431.

The user450, the network manager480, the power source495, and/or each sensor460can include an interface to receive data from and send data to the control module404in certain example embodiments. Examples of such an interface can include, but are not limited to, a graphical user interface, a touchscreen, an application programming interface, a keyboard, a monitor, a mouse, a web service, a data protocol adapter, some other hardware and/or software, or any suitable combination thereof.

The control module404, the user450, the network manager480, the power source495, and/or the sensors460can use their own system or share a system in certain example embodiments. Such a system can be, or contain a form of, an Internet-based or an intranet-based computer system that is capable of communicating with various software. A computer system includes any type of computing device and/or communication device, including but not limited to the control module404. Examples of such a system can include, but are not limited to, a desktop computer with a Local Area Network (LAN), a Wide Area Network (WAN), Internet or intranet access, a laptop computer with LAN, WAN, Internet or intranet access, a smart phone, a server, a server farm, an android device (or equivalent), a tablet, smartphones, and a personal digital assistant (PDA). Such a system can correspond to a computer system as described below with regard toFIG. 5.

Further, as discussed above, such a system can have corresponding software (e.g., user software, sensor software, controller software, network manager software). The software can execute on the same or a separate device (e.g., a server, mainframe, desktop personal computer (PC), laptop, PDA, television, cable box, satellite box, kiosk, telephone, mobile phone, or other computing devices) and can be coupled by the communication network (e.g., Internet, Intranet, Extranet, LAN, WAN, or other network communication methods) and/or communication channels, with wire and/or wireless segments according to some example embodiments. The software of one system can be a part of, or operate separately but in conjunction with, the software of another system within the system498.

The luminaire400can include a light fixture housing. The light fixture housing can include at least one wall that forms a light fixture cavity. In some cases, the light fixture housing can be designed to comply with any applicable standards so that the luminaire400can be located in a particular environment. The light fixture housing can form any type of luminaire400, including but not limited to a troffer light fixture, a down can light fixture, a recessed light fixture, and a pendant light fixture. The light fixture housing can also be used to combine the luminaire400with some other device, including but not limited to a ceiling fan, a smoke detector, a broken glass detector, a garage door opener, and a wall clock.

The light fixture housing of the luminaire400can be used to house or be located proximate to one or more components of the luminaire400, including the control module404and one or more sensors460. For example, the control module404(which in this case includes the controller406, the communication module408, the timer410, the energy metering module411, the power module412, the storage repository430, the hardware processor420, the memory422, the transceiver424, the application interface426, the switches431, and the optional security module428) can be disposed within the cavity formed by the housing of the luminaire400. In alternative embodiments, any one or more of these or other components (e.g., a sensor460, a switch431) of the luminaire400can be disposed on or remotely from the housing of the luminaire400.

The control module404can include a housing (not shown inFIGS. 4A and 4B). Such a housing can include at least one wall that forms a cavity. One or more of the various components (e.g., controller406, hardware processor420) of the control module404can be disposed within the cavity formed by such a housing. Alternatively, a component of the control module404can be disposed on such a housing or can be located remotely from, but in communication with, such a housing. As yet another alternative, the control module404can be a number of discrete components that are disposed on a circuit board.

The storage repository430can be a persistent storage device (or set of devices) that stores software and data used to assist the control module404in communicating with the user450, the network manager480, the power source495, and one or more sensors460within the system498. In one or more example embodiments, the storage repository430stores one or more communication protocols432, operational protocols433, and sensor data434. The communication protocols432can be any of a number of protocols that are used to send and/or receive data, using a communication mode490, between the control module404and the user450, the network manager480, the power source495, and one or more sensors460. One or more of the communication protocols432can be a time-synchronized protocol. Examples of such time-synchronized protocols can include, but are not limited to, a highway addressable remote transducer (HART) protocol, a wirelessHART protocol, and an International Society of Automation (ISA) 100 protocol. In this way, one or more of the communication protocols432can provide a layer of security to the data transferred within the system498.

The operational protocols433can be any algorithms, formulas, logic steps, and/or other similar operational procedures that the controller406of the control module404follows based on certain conditions at a point in time. An example of an operational protocol433is directing the controller406to provide power and to cease providing power to the power supply440at pre-set points of time. Another example of an operational protocol433is to check one or more communication links405with the network manager480and, if a communication link405is not functioning properly, allow the control module404to operate autonomously from the rest of the system498.

As another example of an operational protocol433, configurations of the control module404can be stored in memory422(e.g., non-volatile memory) so that the control module404(or portions thereof) can operate regardless of whether the control module404is communicating with the network manager480and/or other components in the system498. Still another example of an operational protocol433is identifying an adverse condition or event (e.g., excessive humidity, no pressure differential, extreme pressure differential, high temperature) based on measurements taken by a sensor460. In such a case, the controller406can notify the network manager480and/or the user450as to the adverse condition or event identified. Yet another example of an operational protocol433is to have the control module404operate in an autonomous control mode if one or more components (e.g., the communication module408, the transceiver424) of the control module404that allows the control module404to communicate with another component of the system498fails.

Sensor data434can be any data associated with (e.g., collected by) each sensor460that is communicably coupled to the control module404. A sensor460can be newly added or pre-existing as part of the luminaire400. Such data can include, but is not limited to, a manufacturer of the sensor460, a model number of the sensor460, communication capability of a sensor460, power requirements of a sensor460, and measurements taken by the sensor460. Examples of a storage repository430can include, but are not limited to, a database (or a number of databases), a file system, a hard drive, flash memory, some other form of solid state data storage, or any suitable combination thereof. The storage repository430can be located on multiple physical machines, each storing all or a portion of the communication protocols432, the operational protocols433, and/or the sensor data434according to some example embodiments. Each storage unit or device can be physically located in the same or in a different geographic location.

The storage repository430can be operatively connected to the controller406. In one or more example embodiments, the controller406includes functionality to communicate with the user450, the network manager480, the power source495, and the sensors460in the system498. More specifically, the controller406sends information to and/or receives information from the storage repository430in order to communicate with the user450, the network manager480, the power source495, and the sensors460. As discussed below, the storage repository430can also be operatively connected to the communication module408in certain example embodiments.

In certain example embodiments, the controller406of the control module404controls the operation of one or more components (e.g., the communication module408, the timer410, the transceiver424) of the control module404. For example, the controller406can activate the communication module408when the communication module408is in “sleep” mode and when the communication module408is needed to send data received from another component (e.g., a sensor460, the user450) in the system498. As another example, the controller406can operate one or more sensors460to dictate when measurements are taken by the sensors460and when those measurements are communicated by the sensors460to the controller406. As another example, the controller406can acquire the current time using the timer410. The timer410can enable the control module404to control the luminaire400even when the control module404has no communication with the network manager480.

As another example, the controller406can check one or more communication links405between the control module404and the network manager480and, if a communication link405is not functioning properly, allow the control module404to operate autonomously from the rest of the system498. As yet another example, the controller406can store configurations of the control module404(or portions thereof) in memory422(e.g., non-volatile memory) so that the control module404(or portions thereof) can operate regardless of whether the control module404is communicating with the network controller480and/or other components in the system498.

As still another example, the controller406can obtain readings from an adjacent sensor if the sensor460associated with the luminaire400malfunctions, if the communication link405(which can include electrical conductor439and/or coupling feature459) between the sensor460and the control module404fails, and/or for any other reason that the readings of the sensor460associated with the luminaire400fails to reach the control module404. To accomplish this, for example, the network manager480can instruct, upon a request from the controller406, the adjacent sensor460to communicate its readings to the controller406of the control module404using communication links405.

As still another example, the controller406can cause the control module404to operate in an autonomous control mode if one or more components (e.g., the communication module408, the transceiver424) of the control module404that allows the control module404to communicate with another component of the system498fails. Similarly, the controller406of the control module404can control at least some of the operation of one or more adjacent light fixtures in the system498. As yet another example, the controller406can implement a communication mode490of the communication module408based on a position of the switch431. If there are multiple switches431and/or multiple antennae488, the controller406can assign one communication mode490(e.g., communication mode490-1) to one component (e.g., a user450) of the system498, while also assigning another communication mode490(e.g., communication mode490-N) to another component (e.g., the network manager480) of the system498

As still another example, the controller406can determine, using the energy metering module411, when power is received from the power supply440. The controller406can also determine, using the energy metering module411, the quality of the power received from the power supply440. The controller406can further determine whether the power source495, through the power supply440, is providing any instructions for operating the luminaire400.

The controller406can provide control, communication, and/or other similar signals to the user450, the network manager480, the power source495, the power supply440, and one or more of the sensors460. Similarly, the controller406can receive control, communication, and/or other similar signals from the user450, the network manager480, the power source495, the power supply440, and one or more of the sensors460. The controller406can control each sensor460automatically (for example, based on one or more algorithms stored in the storage repository430) and/or based on control, communication, and/or other similar signals received from another device through a communication link405. The controller406may include a printed circuit board, upon which the hardware processor420and/or one or more discrete components of the control module404are positioned.

In certain example embodiments, the controller406can include an interface that enables the controller406to communicate with one or more components (e.g., power supply440) of the luminaire400. For example, if the power supply440of the luminaire400operates under IEC Standard 62386, then the power supply440can include a digital addressable lighting interface (DALI). In such a case, the controller406can also include a DALI to enable communication with the power supply440within the luminaire400. Such an interface can operate in conjunction with, or independently of, the communication protocols432used to communicate between the control module404and the user450, the network manager480, the power source495, and the sensors460.

The controller406(or other components of the control module404) can also include one or more hardware components and/or software elements to perform its functions. Such components can include, but are not limited to, a universal asynchronous receiver/transmitter (UART), a serial peripheral interface (SPI), a direct-attached capacity (DAC) storage device, an analog-to-digital converter, an inter-integrated circuit (I2C), and a pulse width modulator (PWM).

In certain example embodiments, the one or more switches431of the control module404is used to select, based on a position of a switch431, one of a number of communication modes490(e.g., communication mode490-1, communication mode490-N). As discussed below, the position of a switch431can also be used to select one or more of a number of CCTs output by the luminaire400. Each switch431can be any of a number of types of switch, including but not limited to one or more DIP switches, one or more SIPP switches, one or more rocker switches, one or more reed switches, one or more magnetic switches, one or more rotary switches, one or more rotary dials, one or more selectors or selector switches, one or more slide switches, one or more snap switches, one or more thumbwheels, one or more toggles or toggle switches, one or more keys or keypads, one or more buttons or pushbuttons, one or more operational amplifiers, and one or more of a number of discrete components that are coupled to each other. For example, a switch431can be a combination of a MOSFET, a diode, a resistor, and a capacitor.

In addition to physical switches, a switch431can be electronic or software-based (virtual). In such a case, when a user450, using a user system and one or more communication links405, communicates with the controller404of the luminaire400, a communication mode and/or a CCT output by the luminaire400can be changed without accessing the luminaire400to change the position of a physical switch. In such a case, an app, a website, or other software-based implementation can be used to allow a user450to change the position of a non-physical switch431of the luminaire400, thereby changing the mode of communication of the luminaire400and/or changing the CCT output by the luminaire400.

Each switch431is controlled by the controller406of the control module404. When there are multiple switches431, each switch431can be used to control (e.g., enable, disable) one or more communication modes490of the luminaire400. The controller406can be coupled to each of the switches431using communication links405(e.g., electrical conductors, wire traces). A switch431can have an open position and a closed position. In other cases, a switch431can have three or more positions. When there are multiple switches431, different combinations of positions of the various switches431can be used to select a communication mode490used by the luminaire400. In some cases, one communication mode490(e.g., communication mode490-1) can be enabled to communicate with one component (e.g., a user450) of the system498while another communication mode490(e.g., communication mode490-N) can be enabled to communicate with another component (e.g., the network manager480) of the system498at the same time.

The communication module408of the control module404determines and implements a communication mode490(e.g., from the communication protocols432of the storage repository430) that is used when the controller406communicates with (e.g., sends signals to, receives signals from) the user450, the network manager480, the power source495, and/or one or more of the sensors460. In some cases, the communication module408accesses the sensor data434to determine which communication protocol is used for a communication mode490to communicate with the sensor460associated with the sensor data434. In addition, the communication module408can interpret the communication protocol of a communication received by the control module404so that the controller406can interpret the communication.

The communication module408, using a communication mode490, can send and receive data between the network manager480, the power source495, and/or the users450and the control module404. The communication module408, based on an enabled communication mode490, can send and/or receive data in a given format that follows a particular communication protocol432. The controller406can interpret the data packet received from the communication module408using the communication protocol432information stored in the storage repository430. The controller406can also facilitate the data transfer between one or more sensors460and the network manager480, the power source495, and/or a user450by converting the data into a format understood by the communication module408.

Each communication mode490can be associated with a selectable mode of communication or a communication protocol. For example, communication mode490-1can be associated with Zigbee. As another example, communication mode490-N can be associated with Bluetooth (e.g., traditional Bluetooth, BLE). The communication module408can send data (e.g., communication protocols432, operational protocols433, sensor data434, operational information, error codes, threshold values, algorithms) directly to and/or retrieve data directly from the storage repository430. Alternatively, the controller406can facilitate the transfer of data between the communication module408and the storage repository430.

A communication mode490can be particular with respect to one or more components of the system498. For example, a particular communication mode490can be with respect to communications with a user450, but not with respect to the network manager480. In this way, when a switch431is used to select a particular communication mode490, such a selection can affect communications with one or more particular components of the system498. Alternatively, when a switch431is used to select a particular communication mode490, such a selection can affect communications with all components of the system498.

The communication module408can also provide encryption to data that is sent by the control module404and decryption to data that is received by the control module404. The communication module408can also provide one or more of a number of other services with respect to data sent from and received by the control module404. Such services can include, but are not limited to, data packet routing information and procedures to follow in the event of data interruption.

The timer410of the control module404can track clock time, intervals of time, an amount of time, and/or any other measure of time. The timer410can also count the number of occurrences of an event, whether with or without respect to time. Alternatively, the controller406can perform the counting function. The timer410is able to track multiple time measurements concurrently. The timer410can track time periods based on an instruction received from the controller406, based on an instruction received from the user450, based on an instruction programmed in the software for the control module404, based on some other condition or from some other component, or from any combination thereof.

The timer410can be configured to track time when there is no power delivered to the control module404(e.g., the power module412malfunctions) using, for example, a super capacitor or a battery backup. In such a case, when there is a resumption of power delivery to the control module404, the timer410can communicate any aspect of time to the control module404. In such a case, the timer410can include one or more of a number of components (e.g., a super capacitor, an integrated circuit) to perform these functions.

The energy metering module411of the control module404measures one or more components of power (e.g., current, voltage, resistance, VARs, watts) at one or more points (e.g., output of the power supply440) associated with the luminaire400. The energy metering module411can include any of a number of measuring devices and related devices, including but not limited to a voltmeter, an ammeter, a power meter, an ohmmeter, a current transformer, a potential transformer, and electrical wiring. The energy metering module411can measure a component of power continuously, periodically, based on the occurrence of an event, based on a command received from the controller406, and/or based on some other factor.

The power module412of the control module404provides power to one or more other components (e.g., timer410, controller406) of the control module404. In addition, in certain example embodiments, the power module412can provide power to one or more of the sensors460of the luminaire400. The power module412can include one or more of a number of single or multiple discrete components (e.g., transistor, diode, resistor), and/or a microprocessor. The power module412may include a printed circuit board, upon which the microprocessor and/or one or more discrete components are positioned. In some cases, the power module412can include one or more components that allow the power module412to measure one or more elements of power (e.g., voltage, current) that is delivered to and/or sent from the power module412.

The power module412can include one or more components (e.g., a transformer, a diode bridge, an inverter, a converter) that receives power (e.g., AC mains) from the power supply440and/or some other source of power (e.g., a battery, a source external to the luminaire400). The power module412can use this power to generate power of a type (e.g., alternating current, direct current) and level (e.g., 12V, 24V, 120V) that can be used by the other components of the control module404and the light sources442. In addition, or in the alternative, the power module412can be a source of power in itself to provide signals to the other components of the control module404and/or the light sources442. For example, the power module412can be a battery or other form of energy storage device. As another example, the power module412can be a localized photovoltaic solar power system.

In certain example embodiments, the power module412of the control module404can also provide power and/or control signals, directly or indirectly, to one or more of the sensors460. In such a case, the controller406can direct the power generated by the power module412to the sensors460and/or the light sources442of the luminaire400. In this way, power can be conserved by sending power to the sensors460and/or the light sources442of the luminaire400when those devices need power, as determined by the controller406.

The hardware processor420of the control module404executes software, algorithms, and firmware in accordance with one or more example embodiments. Specifically, the hardware processor420can execute software on the controller406or any other portion of the control module404, as well as software used by the user450, the network manager480, the power source495, the power supply440, and/or one or more of the sensors460. The hardware processor420can be an integrated circuit, a central processing unit, a multi-core processing chip, SoC, a multi-chip module including multiple multi-core processing chips, or other hardware processor in one or more example embodiments. The hardware processor420is known by other names, including but not limited to a computer processor, a microprocessor, and a multi-core processor.

In one or more example embodiments, the hardware processor420executes software instructions stored in memory422. The memory422includes one or more cache memories, main memory, and/or any other suitable type of memory. The memory422can include volatile and/or non-volatile memory. The memory422is discretely located within the control module404relative to the hardware processor420according to some example embodiments. In certain configurations, the memory422can be integrated with the hardware processor420.

In certain example embodiments, the control module404does not include a hardware processor420. In such a case, the control module404can include, as an example, one or more field programmable gate arrays (FPGA), one or more insulated-gate bipolar transistors (IGBTs), and/or one or more integrated circuits (ICs). Using FPGAs, IGBTs, ICs, and/or other similar devices known in the art allows the control module404(or portions thereof) to be programmable and function according to certain logic rules and thresholds without the use of a hardware processor. Alternatively, FPGAs, IGBTs, ICs, and/or similar devices can be used in conjunction with one or more hardware processors420.

The transceiver424of the control module404can send and/or receive control and/or communication signals. Specifically, the transceiver424can be used to transfer data between the control module404and the user450, the network manager480, the power source495, the power supply440, and/or the sensors460. The transceiver424can use wired and/or wireless technology. The transceiver424can be configured in such a way that the control and/or communication signals sent and/or received by the transceiver424can be received and/or sent by another transceiver that is part of the user450, the network manager480, the power source495, the power supply440, and/or the sensors460. The transceiver424can use any of a number of signal types, including but not limited to radio frequency signals and visible light signals.

When the transceiver424uses wireless technology, any type of wireless technology can be used by the transceiver424in sending and receiving signals. Such wireless technology can include, but is not limited to, Wi-Fi, visible light communication, cellular networking, BLE, Zigbee, and Bluetooth. The transceiver424can use one or more of any number of suitable communication protocols (e.g., ISA100, HART) when sending and/or receiving signals. Such communication protocols can be stored in the communication protocols432of the storage repository430. Further, any transceiver information for the user450, the network manager480, the power source495, the power supply440, and/or the sensors460can be part of the communication protocols432(or other areas) of the storage repository430.

Optionally, in one or more example embodiments, the security module428secures interactions between the control module404, the user450, the network manager480, the power source495, the power supply440, and/or the sensors460. More specifically, the security module428authenticates communication from software based on security keys verifying the identity of the source of the communication. For example, user software may be associated with a security key enabling the software of the user450to interact with the control module404. Further, the security module428can restrict receipt of information, requests for information, and/or access to information in some example embodiments.

As mentioned above, aside from the control module404and its components, the luminaire400can include one or more sensors460, a power supply440, and one or more light sources442. The sensors460are described above. The light sources442of the luminaire400are devices and/or components typically found in a light fixture to allow the luminaire400to operate. The light sources442emit light using power provided by the power supply440. The luminaire400can have one or more of any number and/or type (e.g., light-emitting diode, incandescent, fluorescent, halogen) of light sources442. A light source442can vary in the amount and/or color of light that it emits. When a luminaire400uses LED light sources442, those LED light sources442can include any type of LED technology, including, but not limited to, chip on board (COB) and discrete die.

The power supply440of the luminaire400receives power (also called primary power or AC mains power) from the power source495. The power supply440uses the power it receives to generate and provide power (also called final power herein) to the control module404. The power supply440can be called by any of a number of other names, including but not limited to a driver, a LED driver, and a ballast. The power supply440can include one or more of a number of single or multiple discrete components (e.g., transistor, diode, resistor), and/or a microprocessor. The power supply440may include a printed circuit board, upon which the microprocessor and/or one or more discrete components are positioned.

In some cases, the power supply440can include one or more components (e.g., a transformer, a diode bridge, an inverter, a converter) that receives power from the power source495and generates power of a type (e.g., alternating current, direct current) and level (e.g., 12V, 24V, 120V) that can be used by the control module404. In addition, or in the alternative, the power supply440can be a source of power in itself. For example, the power supply440can or include be a battery, a localized photovoltaic solar power system, or some other source of independent power.

The switch431, which can be part of the control module406or separate from but in communication with the control module406, can be used to select one or more of a number of variables that affect the operation of the luminaire400. For example, the switch431can be used to select one or more of a number of communication modes490. The switch431can be any of a number of types of switches, including but not limited to one or more DIP switches, one or more SIPP switches, one or more rocker switches, one or more reed switches, one or more magnetic switches, one or more rotary switches, one or more rotary dials, one or more selectors or selector switches, one or more slide switches, one or more snap switches, one or more thumbwheels, one or more toggles or toggle switches, one or more keys or keypads, and one or more buttons or pushbuttons.

The luminaire400can also include one or more of a number of other components. Examples of such other components can include, but are not limited to, a heat sink, an electrical conductor or electrical cable, a housing, a terminal block, a lens, a diffuser, a reflector, an air moving device, a baffle, and a circuit board. As stated above, the luminaire400can be placed in any of a number of environments. In such a case, the housing of the luminaire400can be configured to comply with applicable standards for any of a number of environments. For example, the luminaire400can be rated as a Division1or a Division2enclosure under NEC standards. Similarly, the control module404, any of the sensors460, or other devices communicably coupled to the luminaire400can be configured to comply with applicable standards for any of a number of environments. For example, a sensor460can be rated as a Division1or a Division2enclosure under NEC standards.

FIG. 5illustrates one embodiment of a computing device518that implements one or more of the various techniques described herein, and which is representative, in whole or in part, of the elements described herein pursuant to certain example embodiments. For example, the control module404ofFIGS. 4A and 4B(including components thereof, such as the control engine406, the hardware processor420, the storage repository430, and the transceiver424) can be considered a computing device518. Computing device518is one example of a computing device and is not intended to suggest any limitation as to scope of use or functionality of the computing device and/or its possible architectures. Neither should computing device518be interpreted as having any dependency or requirement relating to any one or combination of components illustrated in the example computing device518.

Computing device518includes one or more processors or processing units514, one or more memory/storage components515, one or more input/output (I/O) devices516, and a bus517that allows the various components and devices to communicate with one another. Bus517represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. Bus517includes wired and/or wireless buses.

Memory/storage component515represents one or more computer storage media. Memory/storage component515includes volatile media (such as random access memory (RAM)) and/or nonvolatile media (such as read only memory (ROM), flash memory, optical disks, magnetic disks, and so forth). Memory/storage component515includes fixed media (e.g., RAM, ROM, a fixed hard drive, etc.) as well as removable media (e.g., a Flash memory drive, a removable hard drive, an optical disk, and so forth).

One or more I/O devices516allow a customer, utility, or other user to enter commands and information to computing device518, and also allow information to be presented to the customer, utility, or other user and/or other components or devices. Examples of input devices include, but are not limited to, a keyboard, a cursor control device (e.g., a mouse), a microphone, a touchscreen, and a scanner. Examples of output devices include, but are not limited to, a display device (e.g., a monitor or projector), speakers, outputs to a lighting network (e.g., DMX card), a printer, and a network card.

Various techniques are described herein in the general context of software or program modules. Generally, software includes routines, programs, objects, components, data structures, and so forth that perform particular tasks or implement particular abstract data types. An implementation of these modules and techniques are stored on or transmitted across some form of computer readable media. Computer readable media is any available non-transitory medium or non-transitory media that is accessible by a computing device. By way of example, and not limitation, computer readable media includes “computer storage media”.

“Computer storage media” and “computer readable medium” include volatile and non-volatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules, or other data. Computer storage media include, but are not limited to, computer recordable media such as RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which is used to store the desired information and which is accessible by a computer.

The computer device518is connected to a network (not shown) (e.g., a LAN, a WAN such as the Internet, the cloud, or any other similar type of network) via a network interface connection (not shown) according to some example embodiments. Those skilled in the art will appreciate that many different types of computer systems exist (e.g., desktop computer, a laptop computer, a personal media device, a mobile device, such as a cell phone or personal digital assistant, or any other computing system capable of executing computer readable instructions), and the aforementioned input and output means take other forms, now known or later developed, in other example embodiments. Generally speaking, the computer system518includes at least the minimal processing, input, and/or output means necessary to practice one or more embodiments.

Further, those skilled in the art will appreciate that one or more elements of the aforementioned computer device518is located at a remote location and connected to the other elements over a network in certain example embodiments. Further, one or more embodiments is implemented on a distributed system having one or more nodes, where each portion of the implementation (e.g., controller406) is located on a different node within the distributed system. In one or more embodiments, the node corresponds to a computer system. Alternatively, the node corresponds to a processor with associated physical memory in some example embodiments. The node alternatively corresponds to a processor with shared memory and/or resources in some example embodiments.

FIGS. 6A and 6Bshow another luminaire600that includes a switch631in accordance with certain example embodiments. Specifically,FIG. 6Ashows a cross-sectional side view of the luminaire600, andFIG. 6Bshows a top-side-front perspective view of the luminaire600. Referring toFIGS. 1A through 6B, the luminaire600ofFIGS. 6A and 6Bis substantially the same as the luminaires discussed above, except as described below.

For example, the luminaire600ofFIGS. 6A and 6Bin this case includes a housing605and a remotely located junction box690. In this case, the luminaire600includes a surface-mounted light fixture, and so the housing605is low profile. An electrical cable627extends through a wiring aperture603in the cover626. The electrical cable627can include one or more electrical conductors to transfer power, control, communication, data, and/or any other type of electrical signals. One end of the electrical cable627is connected to one or more components (e.g., light sources650) disposed on and/or within the housing605of the luminaire600.

In this case, the housing605is installed in a ceiling695. The junction box690is located behind the ceiling and includes one or more walls691to enclose one or more electrical components (e.g., a driver). An opposing end of the electrical cable627is coupled to one or more of those electrical components disposed in the junction box690. In this way, the electrical cable627electrically couples one or more electrical components in the junction box690with one or more electrical components in or on the housing605. When the housing605is mounted in its installed location (in this case, the ceiling695), the entire electrical cable627(and so also the switch631) is behind the ceiling695and is inaccessible. Similarly, when the housing605is mounted in its installed location (e.g., the ceiling695), the junction box960can be inaccessible. When the housing605is removed from its installed location, the junction box690and the electrical cable627(and so also the switch631) can be accessible.

With the embodiments discussed previously, the example switch is located on the housing of the luminaire or within the housing of the luminaire. Here, the switch631is located outside of the housing605of the luminaire600. Specifically, in this case, the switch631is in-line with the electrical cable627. The switch631can be substantially the same as the example switches discussed above. For instance, the switch631can have one or more coupling features (e.g., terminal points) that are used to couple to one or more electrical conductors of one or more electrical cables627. As another example, the switch631can have an actuator having multiple positions.

As yet another example, the switch631can be or include an inline pin switch, multiple DIP switches, one or more single in-line pin packages (SIP or SIPP), one or more rocker switches, one or more reed switches, one or more magnetic switches, one or more rotary switches, one or more rotary dials, one or more selectors or selector switches, one or more slide switches, one or more snap switches, one or more thumbwheels, one or more toggles or toggle switches, one or more keys or keypads, or one or more buttons or pushbuttons.

The switch631, like any other switch described herein, can have a range of selections that are either continuous or discrete. As with the other switches described above, the switch631is used to select the communication mode (e.g., communication mode490) of the luminaire600, and each selection (position) of the switch631corresponds to a communication mode of multiple communication modes. When the switch631is in-line with the electrical cable627, as in this example, the switch631can be integrated with the electrical cable627. Alternatively, there can be two electrical cables627, where one electrical cable627is coupled to the one or more components inside the junction box960and one side of the switch631, and the other electrical cable627is coupled to the one or more components inside or on the housing605and the other side of the switch631. When the switch631is accessible (e.g., when the housing605is removed from its mounting location), the switch631can be replaced (e.g., without the use of tools) by a user.

FIG. 7shows yet another luminaire700that includes a switch731in accordance with certain example embodiments. Referring toFIGS. 1A through 7, the luminaire700ofFIG. 7is substantially the same as the luminaire600ofFIGS. 6Aand6B, except that the switch731of the luminaire700ofFIG. 7is in a different location separate from the housing705.

For example, the luminaire700ofFIG. 7in this case includes a housing705and a remotely located junction box790. In this case, the luminaire700includes a surface-mounted light fixture, and so the housing705is low profile. The cover726of the housing705is shown inFIG. 7. An electrical cable727extends through a wiring aperture703in the cover726. The electrical cable727can include one or more electrical conductors to transfer power, control, communication, data, and/or any other type of electrical signals. One end of the electrical cable727is connected to one or more components (e.g., light sources) disposed on and/or within the housing705of the luminaire700. When the housing705is mounted in its installed location (e.g., a ceiling), the entire electrical cable727can be inaccessible. When the housing705is removed from its installed location, the electrical cable727can be accessible.

The junction box790includes one or more walls791to enclose one or more electrical components (e.g., a power supply (e.g., power supply440), a switch731). In this case, one of the walls of the junction box790is removed to show the switch731disposed within the cavity792formed by the walls791of the junction box790. An opposing end of the electrical cable727is coupled to one or more of those electrical components disposed in the junction box790. In this way, the electrical cable727electrically couples one or more electrical components in the junction box790with one or more electrical components in or on the housing705. In this case, the switch731is disposed within the junction box790. When the housing705is mounted in its installed location (e.g., a ceiling), the junction box790(and so also the switch731) can be inaccessible. When the housing705is removed from its installed location, the junction box790(and so also the switch731) can be accessible.

The switch731ofFIG. 7can be substantially the same as the switch731described above with respect toFIGS. 6A and 6B. For example, the switch731can have a range of selections that are either continuous or discrete. As with the other switches described above, the switch731is used to select the communication mode of the luminaire700, and each selection (position) of the switch731corresponds to a communication mode among multiple communication modes. As an alternative to the embodiment shown inFIG. 7, rather than being disposed within the cavity792of the junction box790, the switch731can be disposed on a wall791of the junction box790or remotely from the junction box790as well as remotely from the housing705of the luminaire700.

FIG. 8shows still another luminaire800that includes a switch831in accordance with certain example embodiments. Referring toFIGS. 1A through 8, the luminaire800ofFIG. 8is similar to the luminaire600ofFIGS. 6A and 6B. For example, the luminaire800ofFIG. 8includes a housing805and a remotely located junction box890. In this case, the luminaire800includes a surface-mounted light fixture, and so the housing805is relatively low profile. An electrical cable827extends through a wiring aperture803in the cover826of the housing805. The electrical cable827can include one or more electrical conductors to transfer power, control, communication, data, and/or any other type of electrical signals. One end of the electrical cable827is connected to one or more components (e.g., light sources) disposed on and/or within the housing805of the luminaire800.

An opposing end of the electrical cable827is coupled to one or more of those electrical components disposed in the junction box890. In this way, the electrical cable827electrically couples one or more electrical components in the junction box890with one or more electrical components in or on the housing805. When the housing805is mounted in its installed location (e.g., a ceiling), the entire electrical cable827and the junction box890(and so also the switch831) are hidden behind the ceiling (or other mounting structure) and are inaccessible. When the housing805is removed from its installed location, the junction box890(and so also the switch831) and the electrical cable827can be accessible.

In this case, rather than being disposed inside the junction box890, the switch831is a physical switch that is disposed in an aperture in one of the walls891of the junction box890. In this way, the position of the switch831can be accessed and changed by a user after removing the housing805from the mounting structure and without having to open the junction box980. The switch831can be substantially the same as the example switches discussed above. For instance, the switch831ofFIG. 8can have one or more coupling features (e.g., terminal points) that are used to couple to one or more electrical conductors of one or more electrical cables827. As another example, the switch831can have an actuator having multiple positions.

FIG. 9shows yet another luminaire900that includes a switch931in accordance with certain example embodiments. Specifically,FIG. 9shows a bottom view of the luminaire900. Referring toFIGS. 1A-9, the luminaire900shown inFIG. 9is substantially similar to the luminaire100shown inFIG. 1Eabove, except for the location of the switch931, as described below. For example, the luminaire900ofFIG. 9shows the lens and reflector removed from the light-emitting aperture915of the luminaire900, leaving the mounting plate929exposed. The light emitting diodes950,955are mounted on a substrate925(e.g., a circuit board), and the substrate925is mounted on the mounting plate929.

The mounting plate929of the luminaire900ofFIG. 9also has an aperture975(similar to aperture275ofFIG. 2Aabove) that traverses therethrough. Disposed within the aperture975is a switch931, which is accessible to a user (e.g., user450) by removing the lens (and optional reflector) of the luminaire900without having to completely remove the luminaire900from its mounted position (e.g., without having to remove the luminaire from a ceiling). In other words, the switch931is located on a bottom surface (or room facing surface) of the mounting plate929so that it can be easily accessed by a person in the room without removing the luminaire900from the ceiling. The switch931in this case is a dipole linear switch, but the switch931can have any of a number of other configurations and/or positions, as described above.

According to certain example embodiments, changing the position of the switch931can change a mode of communication by which the luminaire900ofFIG. 9communicates. In alternative embodiments, changing the position of the switch931(as well as any other switch described herein) can change the CCT of the light emitted by the light emitting diodes950,955.

For example, a group of the light emitting diodes950,955of the luminaire900can emit a CCT of 3000K, while another group of light emitting diodes950,955can emit a CCT of 4000K. When only the group of light emitting diodes950,955that emit a CCT of 3000K is selected (on), the luminaire900delivers 3000K illumination. When only the group of light emitting diodes950,955that emit a CCT of 4000K is selected (on), the luminaire delivers 4000K illumination. When the 3000K group of light emitting diodes950,955and the 4000K group of light emitting diodes950,955are both on, the luminaire900can deliver 3500K illumination.

If the 4000K group of light emitting diodes950,955is concurrently operated at a low lumen output and the 3000K group of light emitting diodes950,955is operated at a high lumen output, the luminaire900can deliver illumination of another selected color temperature, for example 3100K. In some example embodiments, the switch931can be used to adjust lumen output to maintain constant delivered lumens across multiple color temperatures or to suite suit application requirements.

Example embodiments allow for user selection of one or more of a number of communication modes (e.g., Zigbee, Bluetooth). In other example embodiments allow for user selection of one or more of a number of CCTs emitted by the light emitting diodes of the luminaire. The selection in either case can be made by the adjustment of one or more switches by a user. A switch can be adjusted manually. A switch can be any type of switch. A switch can be located within, on, or remotely from a luminaire. A switch can be accessible when the luminaire is installed or only prior to installation. Example embodiments can be used to make the communication mode and/or CCT output of a luminaire more flexible, which can save costs, reduce inventory requirements, and simplify product offerings by combining multiple and selectable communication modes and/or CCT output into a single luminaire. Luminaires that use example embodiments comply with any of a number of applicable codes and/or standards (e.g., UL standards). Using example embodiments described herein can improve safety, maintenance, costs, customer satisfaction, ease of use, and operating efficiency.