Sensor module for a luminaire

Abstract

The present invention relates to a sensor module for a luminaire. A lighting system can include a luminaire located in a hazardous environment, where the luminaire includes a controller. The luminaire can also include a sensor module communicably coupled to the controller of the luminaire, where the sensor module includes a sensor module housing and a sensor disposed within the sensor module housing, where the sensor module housing includes a first coupling feature coupled to a hazardous location enclosure. The hazardous location enclosure and the sensor module, when coupled to one another, can comply with applicable standards for the hazardous environment.

Description

[0001] This application is a divisional application of patent application No. 201780069970.9 filed on May 13, 2019, entitled "Sensor Module for Lighting Fixtures".

[0002] Cross-reference to related applications

[0003] This patent application claims priority to U.S. Provisional Patent Application Serial No. 62 / 429,580, filed December 2, 2016, entitled “Hazardous Location LightFixtures,” which relates to U.S. Patent Application Serial No. 15 / 382,143, filed December 16, 2016, entitled “Prognostic and Health Monitoring Systems For LightFixtures.” The entire contents of these applications are hereby incorporated by reference. Technical Field

[0004] This disclosure relates in general to luminaires, and more specifically to systems, methods and apparatus for luminaires having sensor modules. Background Technology

[0005] Lighting fixtures are used in a variety of environments. Many of these fixtures employ advanced technology with multiple components. Therefore, these fixtures can have multiple points of failure. In lighting applications such as hazardous environments, the reliability of the lighting system is critical. Unfortunately, the characteristics of many environments (including but not limited to hazardous environments) (e.g., humidity, extreme temperatures, corrosive gases) can cause one or more components of the fixture to fail more quickly. Furthermore, the health and safety of people in such environments may be at risk, whether they are aware of it or not. When lighting fixtures are placed in certain environments such as hazardous environments, if some of the fixture's components are not properly designed and manufactured and properly integrated with the rest of the fixture, some of these components can pose safety hazards and violate applicable standards. Summary of the Invention

[0006] In one aspect, the present invention relates to lighting systems. The lighting system may include a luminaire located in a hazardous environment, wherein the luminaire includes a controller. The lighting system may also include a sensor module communicatively coupled to the controller of the luminaire, wherein the sensor module includes a sensor module housing and a sensor disposed within the sensor module housing, wherein the sensor module housing includes a first coupling feature coupled to a hazardous location enclosure. When the hazardous location enclosure and the sensor module are coupled to each other, they may conform to applicable standards for the hazardous environment.

[0007] In another aspect, this disclosure generally relates to lighting systems. The lighting system may include a first luminaire housing of a first luminaire, wherein the first luminaire housing includes a first mounting feature. The lighting system may also include a sensor module removably coupled to the first luminaire housing, wherein the sensor module includes a sensor module housing and a sensor disposed within the sensor module housing, wherein the sensor module housing includes a first coupling feature coupled to the first mounting feature of the first luminaire housing. The sensor device is adjustable relative to the first luminaire housing.

[0008] In another aspect, this disclosure generally relates to a sensor module coupled to a housing of a luminaire. The sensor module may include a housing having at least one wall forming a cavity. The sensor module may also include a sensor disposed within the cavity, wherein the sensor is configured to measure at least one parameter for controlling the operation of the luminaire. The sensor module may also include a baffle coupled to the housing, wherein the baffle has a through-hole therethrough. The sensor module may also include a lens disposed within the through-hole, and a mounting bracket disposed within the cavity and coupled to the baffle, wherein the sensor is supported by the mounting bracket. The sensor module may also include a circuit board disposed within the cavity and electrically coupled to the sensor.

[0009] These and other aspects, objects, features, and embodiments will become apparent from the following description and the appended claims. Attached Figure Description

[0010] The accompanying drawings illustrate only exemplary embodiments and should not be considered limiting, as the exemplary embodiments may allow for other equally effective embodiments. The elements and features shown in the drawings are not necessarily drawn to scale, but rather the emphasis is on clearly illustrating the principles of the exemplary embodiments. Furthermore, certain dimensions or locations may be enlarged to help visually convey these principles. In the drawings, reference numerals denote similar or corresponding, but not necessarily identical, elements.

[0011] Figure 1 A system diagram of a lighting system including luminaires according to certain exemplary embodiments is shown.

[0012] Figure 2 A computing device according to certain exemplary embodiments is shown.

[0013] Figure 3 A luminaire according to certain exemplary embodiments is shown.

[0014] Figure 4 Another luminaire is shown according to some exemplary embodiments.

[0015] Figure 5A and Figure 5B Another luminaire is shown according to some exemplary embodiments.

[0016] Figure 6 Another luminaire is shown according to some exemplary embodiments.

[0017] Figure 7 Another luminaire is shown according to some exemplary embodiments.

[0018] Figure 8 Another luminaire is shown according to some exemplary embodiments.

[0019] Figure 9A and Figure 9B Another luminaire is shown according to some exemplary embodiments.

[0020] Figure 10 Another luminaire is shown according to some exemplary embodiments.

[0021] Figure 11 Another luminaire is shown according to some exemplary embodiments.

[0022] Figure 12 Another luminaire is shown according to some exemplary embodiments.

[0023] Figure 13A and Figure 13B Another luminaire is shown according to some exemplary embodiments.

[0024] Figures 14A to 14C The following are illustrated according to certain exemplary embodiments. Figure 13A and Figure 13B The sensor module.

[0025] Figure 15A and Figure 15B The following are illustrated according to certain exemplary embodiments. Figure 13A and Figure 13B Part of the lighting fixture.

[0026] Figures 16A to 16H The following are illustrated according to certain exemplary embodiments. Figure 13A and Figure 13B Detailed view of the lighting fixture.

[0027] Figure 17 A system including a luminaire and a sensor module is shown according to some exemplary embodiments. Detailed Implementation

[0028] Generally, exemplary embodiments provide systems, methods, and apparatus for luminaires with sensor modules. Exemplary luminaires with sensor modules offer a variety of beneficial effects. These beneficial effects may include, but are not limited to: preventing sudden luminaire failure in critical applications, extending luminaire lifespan, improving security in areas where exemplary luminaires are located, reducing operating costs, being adjustable for optimal performance, and conforming to industry standards applicable to luminaires in specific environments.

[0029] In some cases, the exemplary embodiments discussed herein can be used in hazardous environments. In such cases, the exemplary embodiments can be located in any type of hazardous environment, including but not limited to aircraft hangars, drilling rigs (for oil, gas, or water), production drilling rigs (for oil or gas), smelters, chemical plants, power plants, mining operations, wastewater treatment facilities, and steel mills. Hazardous environments may include explosion-proof environments that require an enclosure with an exemplary humidity control system to meet one or more requirements, including but not limited to flame paths.

[0030] An explosion-proof enclosure is an enclosure for hazardous locations. In one or more exemplary embodiments, an explosion-proof enclosure (also known as a fireproof enclosure) is an enclosure configured to control explosions occurring within the enclosure. Furthermore, the explosion-proof enclosure is configured to allow gases from inside the enclosure to escape through joints in the enclosure and to cool as the gases leave the explosion-proof enclosure. A joint, also known as a flame passage, exists at a location where two surfaces intersect and provide a passage from inside the explosion-proof enclosure to the outside of the enclosure, along which one or more gases can travel. A joint can be the mating of any two or more surfaces. Each surface can be of any type, including but not limited to flat surfaces, threaded surfaces, and serrated surfaces. In some cases, the housing of a luminaire coupled to an exemplary sensor can be considered an explosion-proof enclosure.

[0031] In one or more exemplary embodiments, explosion-proof enclosures must meet certain standards and / or requirements. For example, NEMA has established standards that enclosures must adhere to to qualify as explosion-proof enclosures. Specifically, NEMA Type 7, 8, 9, and 10 enclosures specify standards that explosion-proof enclosures in certain hazardous locations must follow. For example, the NEMA Type 7 standard applies to enclosures constructed for indoor use in certain hazardous locations. Hazardous locations can be defined by one or more official agencies, including but not limited to the National Electrical Code (e.g., Class I, Category 1) and UL (e.g., UL 1203). For example, a Class I hazardous area as defined by the National Electrical Code is an area where there may be a sufficient amount of flammable gas or vapor in the air to cause an explosion.

[0032] As a specific example, for explosion-proof enclosures with a certain size or size range (e.g., greater than 100 cubic inches), NEMA standards may require that, within Zone 1, Group B areas, any flame path through the enclosure must be at least 1 inch long (continuous and uninterrupted), and the gaps between surfaces must not exceed 0.0015 inches. Standards developed and maintained by NEMA are available at www.nema.org / stds and are incorporated herein by reference.

[0033] The exemplary luminaire (or components thereof) with sensor modules described herein may be made of one or more of a variety of suitable materials to allow the luminaire and / or other associated components of the system to meet certain standards and / or regulations, while also maintaining durability under one or more conditions that the other associated components of the luminaire and / or system may be exposed to. Examples of such materials may include, but are not limited to, aluminum, stainless steel, fiberglass, glass, plastics, ceramics, and rubber. Exemplary embodiments may also be used in non-hazardous environments.

[0034] The exemplary luminaire (or part thereof) with a sensor module described herein may be manufactured as a single piece (e.g., by molding, injection molding, die casting, or extrusion). Alternatively, the exemplary luminaire (or part thereof) with a sensor module may be manufactured from multiple parts mechanically coupled to each other. In this case, one or more of a variety of coupling methods may be used to mechanically couple the multiple parts to each other, including but not limited to epoxy resin, welding, fastening devices, compression fittings, mating threads, and slotted fittings. One or more mechanically coupled parts may be coupled to each other in one or more of a variety of ways, including but not limited to fixed, hinged, removable, slidable, and threaded coupling.

[0035] The components and / or features described herein may include elements described as coupling, fastening, fixing, or other similar terms. Such terms are intended only to distinguish various elements and / or features within a component or device and are not intended to limit the performance or function of a particular element and / or feature. For example, a feature described as a “coupling feature” may couple, fix, fasten, abut, and / or perform functions other than simply coupling.

[0036] The coupling features described herein (including complementary coupling features) allow one or more components and / or portions (e.g., sensor devices) of an exemplary luminaire to be directly or indirectly mechanically coupled to another portion (e.g., housing) of the luminaire. Coupling features may include, but are not limited to, a portion of a hinge, a hole, a recessed area, a protrusion, a slot, a spring clip, a male connector end, a female connector end, a tab, a pawl, and mating threads. A portion of an exemplary luminaire may be coupled to another portion of the luminaire by directly using one or more coupling features.

[0037] In addition to this, or in an alternative, a portion of the exemplary luminaire (e.g., a sensor device) may be coupled to another portion of the luminaire (e.g., a housing) using one or more separate devices that interact with one or more coupling features disposed on a component of the luminaire. Examples of such devices may include, but are not limited to, pins, male connector ends, female connector ends, hinges, epoxy resin, welding, fastening devices (e.g., bolts, screws, rivets), and springs. One coupling feature described herein may be the same as or different from one or more other coupling features described herein. A complementary coupling feature described herein may be a coupling feature that is directly or indirectly mechanically coupled to another coupling feature.

[0038] Mechanical coupling features are the primary focus of the various exemplary embodiments described herein. Unless otherwise stated below, the electrical connection between the exemplary sensor module and the luminaire can be fairly standard, including one or more electrical conductors, one or more electrical connectors, one or more terminal nuts, one or more terminal blocks, some other form of electrical connection, or any combination thereof. Special circumstances arise when the luminaire is located in a particular environment (e.g., a hazardous environment), as described below. For example, potting or other forms of encapsulation may be used for the electrical connection or for components used in the electrical connection between the exemplary sensor module and the luminaire.

[0039] In the foregoing figures illustrating exemplary embodiments of hazardous location lighting fixtures with sensor modules, one or more of the shown components may be omitted, repeated, and / or substituted. Therefore, exemplary embodiments of hazardous location lighting fixtures with sensor modules should not be considered limited to a specific arrangement of the components shown in any of the figures. For example, features shown in one or more figures or described with reference to one embodiment may be applied to another embodiment associated with a different figure or description.

[0040] While the exemplary embodiments described herein relate to luminaires, integrated sensor modules can also be applied to the enclosures of any device (e.g., electrical enclosures) in hazardous environments. As defined herein, an electrical enclosure is any type of cabinet or enclosure in which electrical, mechanical, electromechanical, and / or electronic equipment is housed. Such devices may include, but are not limited to, controllers (also referred to as control modules), hardware processors, power supplies (e.g., batteries, drivers, ballasts), sensor modules, safety barriers, sensors, sensor circuits, light sources, cables, and electrical conductors. Examples of electrical enclosures may include, but are not limited to, enclosures for luminaires, enclosures for sensor devices, electrical connectors, junction boxes, motor control centers, circuit breaker boxes, electrical housings, conduits, control panels, indicator panels, and control cabinets.

[0041] In some exemplary embodiments, luminaires (or other enclosures) with sensor modules are required to comply with certain standards and / or requirements. For example, the National Electrical Code (NEC), Underwriters Laboratories (UL), the National Electrical Manufacturers Association (NEMA), the International Electrotechnical Commission (IEC), the Federal Communications Commission (FCC), the Institute of Illumination Engineering (IES), the Occupational Health and Safety Administration (OSHA), and the Institute of Electrical and Electronics Engineers (IEEE) have established standards for electrical enclosures, wiring, and electrical connections. The use of the exemplary embodiments described herein conforms to (and / or allows the corresponding devices to conform to) these standards where required. For example, UL 844 sets forth a standard for lighting equipment used in hazardous locations. In some applications (e.g., PV solar), the electrical enclosures described herein may meet other application-specific standards.

[0042] If a component in an accompanying drawing is described but not explicitly shown or labeled in that drawing, the designation used for the corresponding component in another drawing can be used to infer that component. Conversely, if a component in an accompanying drawing is labeled but not described, the description of such a component can be substantially the same as the description of the corresponding component in another drawing. The numbering scheme used for the various components in the accompanying drawings of this document ensures that each component has three digits, and that corresponding components in other drawings have the same last two digits.

[0043] Furthermore, unless explicitly stated otherwise, the description of a particular embodiment (e.g., as shown in the accompanying drawings) not having a particular feature or component does not imply that such embodiments cannot have such features or components. For example, features or components described as not included in the exemplary embodiments shown in one or more particular drawings may be included in one or more claims corresponding to such one or more particular drawings herein.

[0044] Exemplary embodiments of luminaires with sensor modules will be described in more detail below with reference to the accompanying drawings, which illustrate exemplary embodiments of luminaires with sensor modules. However, luminaires with sensor modules can be embodied in many different forms and should not be construed as limited to the exemplary embodiments described herein. Rather, these exemplary embodiments are provided to make this disclosure thorough and complete, and will fully convey the scope of luminaires with sensor modules to those skilled in the art. For consistency, similar but not necessarily identical elements (sometimes referred to as parts) in the various figures are indicated by similar reference numerals.

[0045] Terms such as “first,” “second,” “top,” “bottom,” “side,” “far,” “near,” “upper,” “lower,” and “inner” are used only to distinguish one component (or a portion of a component or the state of a component) from another component. Such terms are not intended to indicate preference or particular orientation, nor are they intended to limit embodiments of the luminaire with the sensor module. Numerous specific details are set forth in the following detailed description of exemplary embodiments to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without these specific details. In other instances, well-known features have not been described in detail to avoid unnecessarily complicating the description.

[0046] Figure 1 A system diagram of a lighting system 100 according to certain exemplary embodiments is shown, the lighting system including a controller 104 for a luminaire 102. The lighting system 100 may include one or more sensor modules 160, a power source 195, one or more users 150, a network manager 180, and at least one luminaire 102. In addition to the controller 104, the luminaire 102 may also include at least one optional safety barrier 136, one or more optional antenna assemblies 139, one or more optional energy storage devices 179, at least one power source 140, and at least one light source 142. The controller 104 may include one or more of a plurality of components. Figure 1 As shown, such components may include, but are not limited to, a control engine 106, a communication module 108, a real-time clock 110, an energy metering module 111, a power module 112, a storage device 130, a hardware processor 120, a memory 122, a transceiver 124, an application interface 126, and optionally, a security module 128. Figure 1 The components shown are not exhaustive, and in some embodiments, Figure 1 One or more of the components shown may not be included in the exemplary luminaire. Any component of the exemplary luminaire 102 may be separate from or combined with one or more other components of the luminaire 102.

[0047] User 150 can be anyone who interacts with the luminaire. Examples of users include, but are not limited to, engineers, electricians, instrumentation and control technicians, mechanics, operators, consultants, inventory management systems, inventory managers, foremen, manpower dispatching systems, contractors, and representatives of manufacturers. User 150 may use a user system (not shown), which may include a display (e.g., a GUI). User 150 interacts with the controller 104 of luminaire 102 via application interface 126 (described below) (e.g., sending data to the controller, receiving data from the controller). User 150 may also interact with one or more of sensor modules 160 and / or network manager 180. Interaction between user 150 and luminaire 102, network manager 180, power source 195, and sensor modules 160 is conducted using communication link 105. Each communication link 105 may include wired (e.g., Category 1 cable, Category 2 cable, electrical connector, power line carrier, DALI, RS485) and / or wireless (e.g., Wi-Fi, visible light communication, cellular networking, Bluetooth, WirelessHART, ISA100) technologies. For example, communication link 105 may be (or include) a housing 103 (a type of enclosure) coupled to luminaire 102 and one or more electrical conductors coupled to sensor module 160. Communication link 105 may transmit signals (e.g., power signals, communication signals, control signals, data) between luminaire 102 and user 150, network manager 180, power source 195 and / or one or more sensor modules 160.

[0048] Network manager 180 is a device or component that controls all or part of a communication network, including a controller 104 for luminaire 102, other luminaires, and a sensor module 160 communicatively coupled to controller 104. Network manager 180 may be substantially similar to controller 104. Alternatively, network manager 180 may include one or more features of controller 104 in addition to or modified therefrom. As described herein, communication with network manager 180 may include communication with one or more other components of system 100 (e.g., another luminaire). In this case, network manager 180 may facilitate such communication.

[0049] The power source 195 of system 100 supplies AC mains power or some other form of power to the luminaire 102 and one or more other components of system 100 (e.g., network manager 180). The power source 195 may include one or more of a plurality of components. Examples of such components may include, but are not limited to, electrical conductors, coupling features (e.g., electrical connectors), transformers, inductors, resistors, capacitors, diodes, transistors, and fuses. The power source 195 may be, or include, for example, a wall socket, an energy storage device (e.g., a battery, a supercapacitor), a circuit breaker, and / or a stand-alone power source (e.g., a photovoltaic solar power system). The power source 195 may also include one or more components (e.g., switches, relays, controllers) that allow the power source 195 to communicate with and / or comply with instructions from the user 150, controller 104, and / or network manager 180.

[0050] Optional energy storage device 179 may be any of multiple rechargeable batteries or similar storage devices configured to be charged using some power source (e.g., the main power supply to the lamp, ultraviolet light). Energy storage device 179 may use one or more of any type of storage technology, including but not limited to batteries, flywheels, ultracapacitors, and supercapacitors. If energy storage device 179 includes batteries, the battery technology may vary, including but not limited to lithium-ion, nickel-cadmium, lead / acid, solid-state, graphite anode, titanium dioxide, nickel-cadmium, nickel metal hydride, nickel iron, alkaline, and lithium polymer. In some cases, one or more of energy storage devices 179 may be charged using different levels and / or types of power relative to the power level and type of the main power supply. In this case, power supply 179 may convert, invert, transform, and / or otherwise manipulate the main power supply to the level and type of power used for charging energy storage device 179. Any number of energy storage devices 179 may be present.

[0051] Optional antenna assembly 139 may be any means for improving the ability of luminaire 102 (or a portion thereof, such as transceiver 124) to transmit and / or receive signals with network manager 180, power source 195, user 150, another luminaire, remote sensor 160, and / or some other device within lighting system 100. Antenna assembly 139 may be used to convert electrical power into radio waves and / or convert radio waves into electrical power. Antenna assembly 139 may be positioned at any location relative to housing 103 of luminaire 102, including but not limited to on housing 103, away from housing 103, within housing 103, or any suitable combination thereof.

[0052] In some exemplary embodiments, antenna assembly 139 includes one or more of a plurality of components. Such components may include, but are not limited to, baluns, block upconverters, cables (e.g., coaxial cables or other forms of communication links 105), balancers (a grounding system), feeders, receivers, passive radiators, feed lines, rotors, tuners, transmitters, low-noise block downconverters, and dual leads. Portions of antenna assembly 139 may communicate directly with one or more components of controller 104 (e.g., communication module 108), or may be shared with such components. For example, transceiver 124 of controller 104 may communicate directly with antenna assembly 139.

[0053] The sensor module 160 can be directly coupled to the housing 103 (a type of enclosure) of the lamp 102, as shown below. Figures 3-16H As shown. Alternatively, the sensor module 160 can be coupled to another enclosure within system 100 (e.g., the housing of another lamp, junction box), as shown below. Figure 17 As shown. One or more sensor modules 160 may include any type of sensing device that measures one or more parameters. Examples of sensor types for sensor module 160 may include, but are not limited to, passive infrared sensors, photocells, pressure sensors, airflow monitors, gas detectors, and resistance temperature detectors. Parameters that can be measured by sensor module 160 may include, but are not limited to, motion, amount of ambient light, temperature inside housing 103 of luminaire 102, humidity inside housing 103 of luminaire 102, air quality inside housing 103 of luminaire 102, vibration, space occupancy, pressure, airflow, smoke (generated in the event of a fire), and temperature outside housing 103 of luminaire 102 (e.g., overheating, overcooling, ambient temperature).

[0054] The exemplary sensor module 160 described herein may include one or more of a plurality of components. For example, the sensor module 160 may have a housing forming a cavity, within which one or more components may be disposed, including but not limited to a sensor, a circuit board, and a mounting bracket. Coupled to the housing of the sensor module 160 may be any of a baffle, a lens, and / or many other components. The housing of the sensor module 160 may also include an extension having one or more of a plurality of coupling features. Various embodiments of the exemplary sensor module 160 are provided in the following figures.

[0055] In some cases, one or more parameters measured by sensor module 160 can be used to operate one or more light sources 142 of luminaire 102. Each sensor module 160 may use one or more of a plurality of communication protocols. Sensor module 160 may be associated with luminaire 102 or another luminaire in system 100. Exemplary sensor module 160 is disposed in the surrounding environment and coupled to housing 103 of luminaire 102. In some cases, sensor module 160 may be additionally positioned within housing 103 of luminaire 102.

[0056] In some exemplary embodiments, sensor module 160 may include an energy storage device (e.g., a battery) for providing power to at least some or all of sensor module 160. In this case, the energy storage device may be the same as or independent of the energy storage device 179 described above for luminaire 102. The energy storage device of sensor module 160 may operate at any time or when the main power source of luminaire 102 is interrupted. Furthermore, sensor module 160 may utilize or include one or more components of controller 104 (e.g., memory 122, storage device 130, transceiver 124). In this case, controller 104 may provide the functionality of these components used by sensor module 160. Alternatively, sensor module 160 may independently or jointly include one or more components of controller 104. In this case, sensor module 160 may correspond to the following references. Figure 2 The aforementioned computer system.

[0057] When system 100 (or at least sensor module 160) is located in a hazardous environment, sensor module 160 may be inherently safe. As used herein, the term “inherently safe” refers to a device (e.g., a sensor as described herein) placed in a hazardous environment. To be inherently safe, the device uses a limited amount of electrical energy so that a short circuit or fault does not generate sparks that could ignite an explosive atmosphere in the hazardous environment. Safety barrier 136 is typically used with inherently safe devices, wherein safety barrier 136 limits the amount of power delivered to the sensor or other device to reduce the risk of explosion, fire, or other adverse conditions that could be caused by high power amounts in a hazardous environment. Adverse conditions may also be anomalous conditions that are not inherently potentially catastrophic.

[0058] When luminaire 102 is located in a hazardous environment, an optional safety barrier 136 can provide protection (e.g., overvoltage protection, overcurrent protection) for one or more components of luminaire 102. For example, safety barrier 136 can limit the amount of power delivered to power module 112 of controller 104 to reduce the risk of explosion, fire, or other adverse conditions that may be caused by high power levels in a hazardous environment. Safety barrier 136 may be a necessary component when luminaire 102 is located in a hazardous environment. For example, IEC 60079-11 requires that the power must be less than 1.3W under fault conditions. Safety barrier 136 may include one or more of a plurality of single or discrete components (e.g., capacitors, inductors, transistors, diodes, resistors, fuses), and / or a microprocessor. For example, safety barrier 136 may be a capacitive barrier.

[0059] According to one or more exemplary embodiments, user 150, network manager 180, power source 195, and / or sensor module 160 can interact with controller 104 of luminaire 102 using application interface 126. Specifically, application interface 126 of controller 104 receives data (e.g., information, communications, instructions, firmware updates) from user 150, network manager 180, power source 195, and / or each sensor module 160 and sends data (e.g., information, communications, instructions) to user 150, network manager 180, power source 195, and / or each sensor module 160. In some exemplary embodiments, user 150, network manager 180, power source 195, and / or each sensor module 160 may include interfaces for receiving data from and sending data to controller 104. Examples of such interfaces may include, but are not limited to, graphical user interfaces, touchscreens, application programming interfaces, keyboards, monitors, mice, web services, data protocol adapters, some other hardware and / or software, or any suitable combination thereof.

[0060] In some exemplary embodiments, controller 104, user 150, network manager 180, power source 195, and / or sensor module 160 may use their own systems or shared systems. Such systems may be in the form of internet-based or intranet-based computer systems capable of communicating with various software. Computer systems include any type of computing and / or communication device, including but not limited to controller 104. Examples of such systems may include, but are not limited to, desktop computers with local area network (LAN), wide area network (WAN), internet, or intranet access; laptop computers with LAN, WAN, internet, or intranet access; smartphones; servers; server clusters; Android devices (or equivalent devices); tablets; smartphones; and personal digital assistants (PDAs). Such systems may correspond to the following references. Figure 2 The aforementioned computer system.

[0061] Furthermore, as described above, such a system may have corresponding software (e.g., user software, sensor software, controller software, network manager software). According to some exemplary embodiments, the software may execute on the same or separate devices (e.g., servers, mainframes, desktop personal computers (PCs), laptops, PDAs, televisions, cable TV boxes, satellite TV boxes, kiosks, telephones, mobile phones, or other computing devices) and may be coupled to wired and / or wireless segments via communication networks (e.g., the Internet, intranets, extranets, LANs, WANs, or other network communication methods) and / or communication channels. The software of one system may be part of the software of another system within system 100, or may run independently but be integrated with the software of that other system.

[0062] The luminaire 102 may include a housing 103. The housing 103 may include at least one wall forming a cavity 101. In some cases, the housing may be designed to meet any applicable standards, allowing the luminaire 102 to be located in a specific environment (e.g., a hazardous environment). For example, if the luminaire 102 is located in an explosive atmosphere, the housing 103 may be explosion-proof. According to applicable industry standards, an explosion-proof enclosure is an enclosure constructed to control explosions that occur from or can propagate through the enclosure.

[0063] Continuing this example, a Zone 1 enclosure is constructed to allow gases from inside the enclosure to escape through joints in the enclosure and to cool as the gases leave. A joint, also known as a flame path, exists at the intersection of two surfaces and provides a passage from the inside to the outside of the enclosure along which one or more gases can travel. A joint can be the mating of any two or more surfaces. Each surface can be of any type, including but not limited to flat surfaces, threaded surfaces, and serrated surfaces. Alternatively, if the enclosure is a Zone 2 enclosure, it can be sealed to prevent / reduce the possibility of harmful gases entering the enclosure, but there will be no "flame path" if the gas enters and is ignited.

[0064] The housing 103 of the luminaire 102 can be used to house one or more components of the luminaire 102, including one or more components of the controller 104. For example, such as Figure 1As shown, the controller 104 (in this case including a control engine 106, a communication module 108, a real-time clock 110, an energy metering module 111, a power module 112, a storage unit 130, a hardware processor 120, a memory 122, a transceiver 124, an application interface 126, and an optional security module 128), power supply 140, and light source 142 are disposed within a cavity 101 formed by the housing 103. In an alternative embodiment, any one or more of these or other components of the luminaire 102 may be disposed on and / or away from the housing 103.

[0065] Repository 130 may be a persistent storage device (or group of devices) storing software and data that facilitates communication between controller 104 and user 150, network manager 180, power source 195, and one or more sensor modules 160 within system 100. In one or more exemplary embodiments, repository 130 stores one or more communication protocols 132, algorithms 133, and stored data 134. Communication protocol 132 may be any of a variety of protocols for sending and / or receiving data between controller 104 and user 150, network manager 180, power source 195, and one or more sensor modules 160. One or more of communication protocols 132 may be time synchronization protocols. Examples of such time synchronization protocols may include, but are not limited to, the Addressable Remote Sensor Data Highway (HART) protocol, the WirelessHART protocol, and the International Association of Automation (ISA) 100 protocol. Thus, one or more of communication protocols 132 may provide a security layer for data transmitted within system 100.

[0066] Algorithm 133 can be any process (e.g., a series of method steps), formula, logical steps, mathematical model, prediction, simulation, and / or other similar operational process followed by the control engine 106 of controller 104 at a certain point in time based on certain conditions. An example of algorithm 133 is to measure (using energy metering module 111), store (using data 134 stored in repository 130), and evaluate the current and voltage delivered to and from power source 140 over time.

[0067] Algorithm 133 may focus on certain components of luminaire 102. For example, one or more algorithms 133 may facilitate communication between sensor module 160 and control engine 106 of controller 104. As a specific example, control engine 106 may use one or more algorithms 133 to instruct sensor module 160 to measure parameters, causing sensor module 160 to send measured values ​​to control engine 106, so that control engine 106 analyzes the measured values ​​(stored as stored data 134) and takes action based on the results of the analysis (stored as stored data 134) (e.g., using communication protocol 132 to indicate the operation of one or more other components of luminaire 102).

[0068] For example, one or more algorithms 133 can facilitate communication between antenna 139 and control engine 106 of controller 104. As a specific example, control engine 106 can use one or more algorithms 133 (using communication protocol 132) to receive signals received by antenna 139, analyze the signals, and take actions based on the analysis results (e.g., operation of one or more other components of indicator 102). As another specific example, control engine 106 can use one or more algorithms 133 to determine if communication needs to be sent to devices outside of indicator 102 and send communication signals (using communication protocol 132 and stored data 134) to antenna 139.

[0069] One or more algorithms 133 can be used for more advanced functions. For example, some algorithms 133 may focus on the prognosis and health monitoring of the luminaire 102. For example, one or more algorithms 133 may exist that focus on the integrity of the housing 103 of the luminaire 102. One such example of algorithm 133 is to predict the lifespan of the gasket of the luminaire 102 (e.g., disposed between the cover and body of the housing 103) based on the temperature within the cavity 101 (measured by the sensor module 160 and stored as stored data 134) and the properties of the gasket material (stored as stored data 134).

[0070] One or more algorithms 133 used in the exemplary embodiment can also be used to detect transient faults in one or more components of the luminaire 102 in real time. For example, if the power metering module 111 measures a power spike (e.g., a fault) at the power supply 140, the control engine 106 can use one or more algorithms 133 to instantaneously compare the overvoltage reading with a threshold in real time, determine that the voltage measurement indicates a fault, and take immediate action (e.g., turn on a switch to stop receiving power from the fault source, use an auxiliary power source to maintain the operation of the luminaire 102) to minimize potential damage to the components of the luminaire 102 caused by the fault and maintain a safe operating environment in the area of ​​the luminaire 102 (e.g., allow the light source 142 to continue receiving power to continue emitting light).

[0071] Other algorithms 133 may relate to the light source 142 of luminaire 102. For example, lumen attenuation data collected according to the LM-80 standard developed by IES and published by LED package manufacturers can be stored as stored data 134 and compared with the temperature of the light source 142 of luminaire 102 (measured by one or more sensor modules 160 and stored as stored data 134) to see if a correlation can be found. As another example, when it is determined that one or more light sources 142 of luminaire 102 begin to fail, algorithm 133 can instruct control engine 106 to generate an alarm for predictive maintenance.

[0072] For example, algorithm 133 can continuously monitor the current output by power supply 140 (measured by power metering module 111 and stored as stored data 134) and a reference current. In addition to dimmer settings, the algorithm can also detect changes in the output current of power supply 140 and the reference current for a given dimmer setting, and predict faults in power supply 140. In this case, the direction of the change can indicate whether a short circuit or open circuit exists.

[0073] Another exemplary algorithm 133 can measure and analyze the current output and current ripple of power supply 140 over time. If the current ripple relative to the current output exceeds a threshold, power supply 140 can be classified as failed. Yet another exemplary algorithm 133 can monitor the temperature over time of critical components of power supply 140 (e.g., electrolytic capacitors, controller IC, blocking diodes, TVS). The estimated remaining lifetime of power supply 140 can be based on the degradation profiles of these components and thresholds established for these components.

[0074] Another exemplary algorithm 133 can measure and analyze the equivalent series resistance of the output electrolytic capacitor of power supply 140 over time. When this resistance exceeds a threshold, an alarm can be generated by control engine 106 to indicate a fault in power supply 140. Yet another exemplary algorithm 133 can measure and analyze the amplitude and number of surges (oscillations) experienced by power supply 140 over time. Algorithm 133 can predict the expected lifespan of power supply 140 based on the threshold. Yet another exemplary algorithm 133 can measure and analyze the efficiency of power supply 140 over time. When the efficiency of power supply 140 drops below a threshold, an alarm can be generated by control engine 106 to indicate a fault in power supply 140.

[0075] Algorithm 133 can be based on a stress model. For example, Algorithm 133 can use accelerated life testing of luminaire 102 or its components to generate a stress-life relationship. One example would be the relationship between the actual lifetime temperature of power supply 140 and a modeled or estimated temperature characteristic map of power supply 140. Another example would be using LM-80 test data developed for light source 142.

[0076] For example, algorithm 133 can measure and analyze the real-time applied stress conditions of luminaire 102 or its components over time, and use a developed model to estimate the lifespan of the luminaire or its components. In this case, one or more mathematical theories (e.g., Arrhenius theory, Palmgran-Miner rule) can be used to develop a mathematical model to predict the lifespan of luminaire 102 or its components under actual stress conditions. Furthermore, algorithm 133 can use predicted values ​​and actual data to estimate the remaining lifespan of luminaire 102 or its components.

[0077] The stored data 134 can be any data associated with luminaire 102 (including other luminaires and / or any components thereof), any measurement performed by sensor module 160, measurement performed by energy metering module 111, thresholds, results of previously run or calculated algorithms, and / or any other suitable data. Such data can be of any type, including but not limited to historical data of luminaire 102, historical data of other luminaires, calculations, measurements performed by energy metering module 111, and measurements performed by one or more sensor modules 160. The stored data 134 can be associated with some time measurement, for example, derived from real-time clock 110.

[0078] Examples of repository 130 may include, but are not limited to, databases (or multiple databases), file systems, hard disk drives, flash memory, some other form of solid-state data storage, or any suitable combination thereof. According to some exemplary embodiments, repository 130 may reside on multiple physical machines, each storing all or a portion of the communication protocol 132, algorithm 133, and / or stored data 134. Each storage unit or device may be physically located in the same or different geographical locations.

[0079] Repository 130 may be operatively connected to control engine 106. In one or more exemplary embodiments, control engine 106 includes the ability to communicate with user 150, network manager 180, power source 195, and sensor module 160 in system 100. More specifically, control engine 106 sends and / or receives information from repository 130 to communicate with user 150, network manager 180, power source 195, and sensor module 160. As described below, in some exemplary embodiments, repository 130 may also be operatively connected to communication module 108.

[0080] In some exemplary embodiments, the control engine 106 of the controller 104 controls the operation of one or more components of the controller 104 (e.g., communication module 108, real-time clock 110, transceiver 124). For example, the control engine 106 can activate the communication module 108 when it is in a "sleep" mode and when the communication module 108 needs to transmit data received from another component in the system 100 (e.g., sensor module 160, user 150).

[0081] For example, control engine 106 can use real-time clock 110 to obtain the current time. Even when controller 104 is not communicating with network manager 180, real-time clock 110 allows controller 104 to control luminaire 102. Alternatively, control engine 106 can instruct power metering module 111 to measure the power consumption information of luminaire 102 and send that information to network manager 180. In some cases, control engine 106 of controller 104 can generate a dimming signal (e.g., 0-10V DC) and send it to power supply 140, causing power supply 140 to adjust the light output of light source 142.

[0082] The control engine 106 of controller 104 can communicate with one or more sensor modules 160 and make determinations based on measurements performed by the sensor modules 160. For example, control engine 106 can use one or more algorithms 133 to facilitate communication with sensor modules 160. As a specific example, control engine 160 can use one or more algorithms 133 to instruct sensor modules 160 to measure parameters, causing sensor modules 160 to send measured values ​​to control engine 106, so that control engine 106 can analyze the measured values ​​(stored as stored data 134) and take action based on the results of the analysis (stored as stored data 134) (e.g., using communication protocol 132 to indicate the operation of one or more other components of luminaire 102).

[0083] Control engine 106 may also use antenna assembly 139 to send and / or receive communications. As a specific example, control engine 106 may use one or more algorithms 133 (using communication protocol 132) to receive signals received by antenna assembly 139, enabling control engine 106 to analyze the signals and take actions based on the analysis results (e.g., operation of one or more other components of indicator 102). As another specific example, control engine 106 may use one or more algorithms 133 to determine if communication needs to be sent to devices external to indicator 102 and send the communication signals (using communication protocol 132 and stored data 134) to antenna assembly 139.

[0084] Control engine 106 can also use sensor module 160 to perform more advanced functions. For example, control engine 106 can be configured to perform multiple functions that use sensor module 160 to help continuously or periodically predict and monitor the health of luminaire 102 (or its components). In other words, control engine 106 uses sensor module 160 to analyze one or more factors that may affect the lifespan of one or more components of luminaire 102. For example, control engine 106 can execute any algorithm 133 stored in repository 130. As a specific example, control engine 106 can (using power metering module 111) measure, store (as stored data 134 in repository 130), and use algorithm 133 to evaluate the current and voltage delivered to and from power source 140 over time.

[0085] As another specific example, control engine 106 may use one or more algorithms 133 that focus on certain components of luminaire 102. For example, control engine 106 may use one or more algorithms 133 that focus on the integrity of housing 103 of luminaire 102. As described above, one such example of algorithm 133 is to predict the lifespan of gaskets (e.g., disposed between the cover and body of housing 103) of luminaire 102 based on the temperature within cavity 101 (measured by sensor module 160 and stored as stored data 134) and the properties of the gasket material (stored as stored data 134). In this case, control engine 106 may control sensor module 160 to perform the measurement.

[0086] The control engine 106 can also detect transient faults in one or more components of the luminaire 102 in real time. For example, if the power metering module 111 measures a power spike (e.g., a fault) at the power supply 140, the control engine 106 can instantaneously compare the overvoltage reading with a threshold, determine that the voltage measurement indicates a fault, and immediately take action (e.g., turn on the switch to stop receiving power from the fault source, use an auxiliary power source to maintain the operation of the luminaire 102) to minimize potential damage to the components of the luminaire 102 caused by the fault and maintain a safe operating environment in the area of ​​the luminaire 102 (e.g., allow the light source 142 to continue receiving power to continue emitting light).

[0087] The control engine 106 can also collect data from one or more light sources 142 according to the LM-80 standard, store the data as stored data 134, and compare this data with the temperature of the light source 142 of the luminaire 102 (measured by one or more sensor modules 160 and stored as stored data 134) to see if a correlation can be found. For example, data generated by component manufacturers using reliability testing protocols (e.g., IES LM-80) (e.g., information about the light source 142 listed on the packaging of the luminaire 102) can be used to generate a stress-life correlation model. These models can then be stored in the repository 130 by the control engine 106 as algorithm 133. Real-time stress information collected in the application environment using multiple sensor modules 160 can be used by the control engine 106 together with the stress-life model stored in the repository 130 to predict the lifespan of the luminaire 102 and / or its components. As another example, the control engine 106 can determine whether one or more light sources 142 of the luminaire 102 have failed and generate an alarm for predictive maintenance.

[0088] For example, control engine 106 can be configured to continuously monitor the current output by power supply 140 (measured by power metering module 111 and stored as stored data 134) and a reference current. Control engine 106 can also determine dimmer settings and thus detect changes in the output current of power supply 140 and the reference current for a given dimmer setting, and predict power supply 140 failures. In this case, the direction of the change can indicate the presence of a short circuit or open circuit. Control engine 106 can also monitor sensor module 160 to ensure its proper functioning and send notifications (e.g., to user 150, to network manager 180) when control engine 160 determines that sensor module 106 is about to fail or has already failed.

[0089] For example, control engine 106 can (using one or more sensor modules 160) measure and analyze the current output and current ripple of power supply 140 over time. If the current ripple relative to the current output (e.g., peak-to-peak ripple current, RMS current) exceeds a threshold, control engine 106 can classify power supply 140 as failed. As another example, PHM engine 106 can (using one or more sensor modules 160) monitor the temperature of critical components of power supply 140 (e.g., electrolytic capacitors, controller IC, blocking diodes, TVS) over time. Control engine 106 can estimate the remaining lifetime of power supply 140 based on the degradation profiles of these components and thresholds established for them.

[0090] Control engine 106 may provide control, communication, and / or other similar signals to user 150, network manager 180, power source 195, and one or more sensor modules 160. Similarly, control engine 106 may receive control, communication, and / or other similar signals from user 150, network manager 180, power source 195, and one or more sensor modules 160. Control engine 106 may automatically control each sensor module 160 (e.g., based on one or more algorithms stored in control engine 106) and / or control each sensor module 160 based on control, communication, and / or other similar signals received from another device via communication link 105. Control engine 106 may include a printed circuit board, on which one or more discrete components of hardware processor 120 and / or controller 104 are positioned.

[0091] In some implementations, the control engine 106 of controller 104 can communicate with one or more components of a system external to system 100. For example, control engine 106 can interact with an inventory management system by ordering a luminaire (or one or more components thereof) to replace luminaire 102 (or one or more components thereof) if it determines that control engine 106 is about to fail or is failing. As another example, when control engine 106 determines that luminaire 102 or a portion thereof requires maintenance or replacement, control engine 106 can interact with a personnel dispatching system by scheduling a repairman to repair or replace luminaire 102 (or a portion thereof). In this way, controller 104 is able to perform a variety of functions beyond what can reasonably be considered routine tasks.

[0092] In some exemplary embodiments, control engine 106 may include an interface that enables control engine 106 to communicate with one or more components of luminaire 102 (e.g., power supply 140). For example, if power supply 140 of luminaire 102 operates in accordance with IEC standard 62386, power supply 140 may have a serial communication interface that transmits data measured by sensor module 160 (e.g., stored data 134). In this case, control engine 106 may also include a serial interface that enables communication with power supply 140 within luminaire 102. Such an interface may operate in conjunction with or independently of communication protocol 132 for communication between controller 104 and user 150, network manager 180, power source 195, and sensor module 160.

[0093] The control engine 106 (or other components of the controller 104) may also include one or more hardware components and / or software elements that perform its functions. These components may include, but are not limited to, a Universal Asynchronous Receiver / Transmitter (UART), a Serial Peripheral Interface (SPI), a Direct Attach Capacity (DAC) storage device, an analog-to-digital converter, and an internal integrated circuit (I2C). 2 C) and pulse width modulator (PWM).

[0094] The communication module 108 of controller 104 determines and implements the communication protocol (e.g., communication protocol 132 from repository 130) used when control engine 106 communicates with user 150, network manager 180, power source 195, and / or one or more sensor modules 160 (e.g., sending signals to them, receiving signals from them). In some cases, communication module 108 accesses stored data 134 to determine which communication protocol is used to communicate with the sensor module 160 associated with the stored data 134. Furthermore, communication module 108 can interpret the communication protocol of communications received by controller 104, enabling control engine 106 to interpret the communications.

[0095] Communication module 108 can send and receive data between network manager 180, power source 195, sensor module 160, and / or user 150 and controller 104. Communication module 108 can send and / or receive data in a given format conforming to a specific communication protocol 132. Control engine 106 can interpret data packets received from communication module 108 using communication protocol 132 information stored in repository 130. Control engine 106 can also facilitate data transmission between one or more sensor modules 160 and network manager 180 or user 150 by converting data into a format understood by communication module 108.

[0096] Communication module 108 can directly send data (e.g., communication protocol 132, algorithm 133, stored data 134, operation information, alarms) to and / or retrieve data directly from repository 130. Alternatively, control engine 106 can facilitate data transfer between communication module 108 and repository 130. Communication module 108 can also provide encryption for data sent by controller 104 and decryption for data received by controller 104. Communication module 108 can also provide one or more of a plurality of other services regarding data sent from and received by controller 104. These services may include, but are not limited to, data packet routing information and procedures to be followed in the event of data interruption.

[0097] The real-time clock 110 of controller 104 can track clock time, time intervals, time quantities, and / or any other time measurements. Real-time clock 110 can also count the number of events that occur, whether or not they are time-related. Alternatively, control engine 106 can perform a counting function. Real-time clock 110 is capable of tracking multiple time measurements simultaneously. Real-time clock 110 can track time periods based on instructions received from control engine 106, instructions received from user 150, instructions programmed in the software for controller 104, some other condition, or from some other component, or from any combination thereof.

[0098] Real-time clock 110 can be configured to use, for example, a supercapacitor or a backup battery to track when no power is supplied to controller 104 (e.g., power module 112 fails). In this case, when power supply to controller 104 is restored, real-time clock 110 can transmit any aspect of time to controller 104. In this case, real-time clock 110 may include one or more of a plurality of components (e.g., supercapacitor, integrated circuit) that perform these functions.

[0099] The power metering module 111 of controller 104 measures one or more power components (e.g., current, voltage, resistance, VAR, watts) at one or more points within luminaire 102. The power metering module 111 may include any of a plurality of measuring devices and associated devices, including but not limited to voltmeters, ammeters, power meters, ohmmeters, current converters, voltage converters, and wires. The power metering module 111 may measure the power components continuously and periodically based on the occurrence of an event, based on a command received from control module 106, and / or based on some other factor. For the purposes of this document, the power metering module 111 may be considered a sensor (e.g., sensor module 160). Thus, the power components measured by the power metering module 111 may be considered parameters herein.

[0100] The power module 112 of controller 104 supplies power to one or more other components of controller 104 (e.g., real-time clock 110, control engine 106). Additionally, in some exemplary embodiments, the power module 112 may supply power to the power supply 140 of luminaire 102. The power module 112 may include one or more of a plurality of single or multiple discrete components (e.g., transistors, diodes, resistors), and / or a microprocessor. The power module 112 may include a printed circuit board on which the microprocessor and / or one or more discrete components are positioned. In some cases, the power module 112 may include one or more components that allow the power module 112 to measure one or more power elements (e.g., voltage, current) delivered to and / or from the power module 112. Alternatively, controller 104 may include a power metering module (not shown) to measure one or more power elements flowing into, out of, and / or within controller 104. Such a power metering module may also be considered herein as a sensor (e.g., sensor module 160).

[0101] Power module 112 may include (e.g., via cable) one or more components (e.g., transformer, diode bridge, inverter, converter) that receive power from a source external to luminaire 102 and generate power of a type (e.g., AC, DC) and level (e.g., 12V, 24V, 120V) usable by other components of controller 104 and / or power supply 140. Power module 112 may use a closed control loop to maintain a pre-configured voltage or current with tight tolerances at the output. Power module 112 may also protect the remaining electronics in luminaire 102 (e.g., hardware processor 120, transceiver 124) from surges generated in the line.

[0102] Alternatively, power module 112 itself may be a power source to provide signals to other components of controller 104 and / or power supply 140. For example, power module 112 may be a battery. As another example, power module 112 may be a local photovoltaic power generation system. Power module 112 may also have sufficient isolation in its associated components (e.g., transformers, optocouplers, current and voltage limiting devices) to enable power module 112 to be certified to supply power to inherently safe circuitry.

[0103] In some exemplary embodiments, the power module 112 of the controller 104 may also provide power and / or control signals directly or indirectly to one or more sensor modules 160. In this case, the control engine 106 may direct the power generated by the power module 112 to the power supply 140 of the sensor modules 160 and / or the lighting fixture 102. In this way, power can be saved by sending power to these devices when the control engine 106 determines that the power supply 140 of the sensor modules 160 and / or the lighting fixture 102 requires power.

[0104] The hardware processor 120 of controller 104 executes software, algorithms, and firmware according to one or more exemplary embodiments. Specifically, the hardware processor 120 may execute software on control engine 106 or any other part of controller 104, as well as software used by user 150, network manager 180, power source 195, and / or one or more sensor modules 160. In one or more exemplary embodiments, the hardware processor 120 may be an integrated circuit, central processing unit, multi-core processing chip, SoC, multi-chip module including multiple multi-core processing chips, or other hardware processor. Alternative names for the hardware processor 120 include, but are not limited to, computer processor, microprocessor, and multi-core processor.

[0105] In one or more exemplary embodiments, hardware processor 120 executes software instructions stored in memory 122. Memory 122 includes one or more cache memories, main memory, and / or any other suitable type of memory. Memory 122 may include volatile memory and / or non-volatile memory. According to some exemplary embodiments, memory 122 is discretely located within controller 104 relative to hardware processor 120. In some configurations, memory 122 may be integrated with hardware processor 120.

[0106] In some exemplary embodiments, controller 104 does not include hardware processor 120. In this case, for example, controller 104 may include one or more field-programmable gate arrays (FPGAs), one or more insulated-gate bipolar transistors (IGBTs), or one or more integrated circuits (ICs). Using FPGAs, IGBTs, ICs, and / or other similar devices known in the art allows controller 104 (or portions thereof) to be programmable and operate according to certain logical rules and thresholds without the need for a hardware processor. Alternatively, FPGAs, IGBTs, ICs, and / or similar devices may be used in conjunction with one or more hardware processors 120.

[0107] The transceiver 124 of the controller 104 can transmit and / or receive control and / or communication signals. Specifically, the transceiver 124 can be used to transmit data between the controller 104 and the user 150, network manager 180, power source 195, and / or sensor module 160. The transceiver 124 can use wired and / or wireless technologies. The transceiver 124 can be configured such that the control and / or communication signals transmitted and / or received by the transceiver 124 can be received and / or transmitted by another transceiver that is part of the user 150, network manager 180, power source 195, and / or sensor module 160. The transceiver 124 can use any of a variety of signal types, including but not limited to radio signals.

[0108] When transceiver 124 uses wireless technology, it can use any type of wireless technology when transmitting and receiving signals. This wireless technology can include, but is not limited to, Wi-Fi, visible light communication, cellular networks, and Bluetooth. Transceiver 124 can use one or more of any number of suitable communication protocols (e.g., ISA 100, HART) when transmitting and / or receiving signals. Such communication protocols can be stored in communication protocol 132 in repository 130. Furthermore, any transceiver information for user 150, network manager 180, power source 195, and / or sensor module 160 can be part of data 134 (or a similar area) stored in repository 130.

[0109] Optionally, in one or more exemplary embodiments, security module 128 ensures interaction between controller 104, user 150, network manager 180, power source 195, and / or sensor module 160. More specifically, security module 128 authenticates communication from software based on a security key that verifies the identity of the communication source. For example, user software may be associated with a security key that enables user 150's software to interact with controller 104 and / or sensor module 160. Furthermore, in some exemplary embodiments, security module 128 may restrict the receipt of information, information requests, and / or access to information.

[0110] As described above, in addition to the controller 104 and its components, the luminaire 102 may also include a power supply 140 and one or more light sources 142. The light source 142 of the luminaire 102 is a device and / or component typically found in luminaires that allows the luminaire 102 to operate. The luminaire 102 may have one or more of any number and / or type of light sources 142. Examples of such light sources 142 may include, but are not limited to, local control modules, light sources, light engines, heat sinks, electrical conductors or cables, terminal blocks, lenses, diffusers, reflectors, air movement devices, baffles, dimmers, and circuit boards. The light source 142 may use any type of lighting technology, including but not limited to LEDs, incandescent lamps, sodium vapor lamps, and fluorescent lamps.

[0111] The power supply 140 of the luminaire 102 supplies power to one or more light sources 142. The power supply 140 may be referred to by any of many other names, including but not limited to driver, LED driver, and ballast. The power supply 140 may be substantially the same as or different from the power module 112 of the controller 104. The power supply 140 may include one or more of a plurality of single or multiple discrete components (e.g., transistors, diodes, resistors), and / or a microprocessor. The power supply 140 may include a printed circuit board and / or a dimmer, on which the microprocessor and / or one or more discrete components are positioned.

[0112] Power supply 140 may include (e.g., via cable) one or more components (e.g., transformer, diode bridge, inverter, converter) that receive power from power module 112 of controller 104 and generate power of a type (e.g., AC, DC) and level (e.g., 12V, 24V, 120V) usable by light source 142. Alternatively, power supply 140 may receive power from a source external to luminaire 102. Alternatively, power supply 140 may itself be a power source. For example, power supply 140 may be a battery, a local photovoltaic power generation system, or some other independent power source.

[0113] As described above, the luminaire 102 can be placed in any of a variety of environments. In this case, the housing 103 of the luminaire 102 can be constructed to conform to applicable standards for any of the various environments. For example, the housing 103 of the luminaire 102 can be evaluated as a Zone 1 housing or a Zone 2 housing according to NEC standards. Similarly, any sensor module 160 or other device communicatively coupled to the luminaire 102 can be constructed to conform to applicable standards for any of the various environments. For example, the sensor module 160 can be evaluated as a Zone 1 housing or a Zone 2 housing according to NEC standards.

[0114] Sensor module 160 may be configured to comply with one or more other applicable standards. For example, exemplary sensor module 160 may be designed to withstand a minimal physical impact when coupled to housing 103 of luminaire 102. In this case, sensor module 160 remains coupled to housing 103 of luminaire 102 after such impact and continues to operate normally after such impact. As a specific example, sensor module 160 coupled to housing 103 of luminaire 102 is capable of withstanding an impact of at least 6.8 Joules, thereby complying with UL844.

[0115] Figure 2 An embodiment of computing device 218 is illustrated, which implements one or more of the various techniques described herein and represents, in whole or in part, the elements described herein according to certain exemplary embodiments. Computing device 218 is an example of a computing device and is not intended to impose any limitation on the scope of use or functionality of the computing device and / or its possible architecture. Computing device 218 should also not be construed as having any dependency or requirement on any component or combination of components shown in the exemplary computing device 218.

[0116] The computing device 218 includes one or more processors or processing units 214, one or more memory / storage units 215, one or more input / output (I / O) devices 216, and a bus 217 that allows the various components and devices to communicate with each other. The bus 217 represents one or more of several types of bus architectures, including a memory bus or memory controller, a peripheral device bus, an accelerated graphics port, and a processor or local bus using any of the various bus architectures. The bus 217 includes wired buses and / or wireless buses.

[0117] Memory / storage component 215 represents one or more computer storage media. Memory / storage component 215 includes volatile media (such as random access memory (RAM)) and / or non-volatile media (such as read-only memory (ROM), flash memory, optical disk, magnetic disk, etc.). Memory / storage component 215 includes fixed media (e.g., RAM, ROM, fixed hard disk drive, etc.) and removable media (e.g., flash memory drive, removable hard disk drive, optical disk, etc.).

[0118] One or more I / O devices 216 allow customers, utility companies, or other users to input commands and information to computing device 218, and also allow information to be presented to customers, utility companies, or other users and / or other components or devices. Examples of input devices include, but are not limited to, keyboards, cursor control devices (e.g., mice), microphones, touchscreens, and scanners. Examples of output devices include, but are not limited to, display devices (e.g., monitors or projectors), speakers, outputs to lighting networks (e.g., DMX cards), printers, and network interface cards (NICs).

[0119] This document describes various techniques in the general context of software or program modules. Typically, software includes routines, programs, objects, components, data structures, etc., that perform specific tasks or implement specific abstract data types. Implementations of these modules and techniques are stored on or transferred between some form of computer-readable medium. A computer-readable medium is any available non-transitory medium or media that can be accessed by a computing device. By way of example and not limitation, a computer-readable medium includes “computer storage media.”

[0120] "Computer storage media" and "computer-readable media" include volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information such as computer-readable instructions, data structures, program modules or other data. Computer storage media includes, but is not limited to, computer-recordable media, such as RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage devices, magnetic tape cassettes, magnetic tape, disk storage devices or other magnetic storage devices, or any other media used to store desired information and accessible by a computer.

[0121] Computer device 218 is connected to a network (not shown) via a network interface (not shown) according to some exemplary embodiments (e.g., a local area network (LAN), a wide area network (WAN) such as the Internet, the cloud, or any other similar type of network). Those skilled in the art will understand that many different types of computer systems exist (e.g., desktop computers, laptop computers, personal media devices, mobile devices such as cellular phones or personal digital assistants, or any other computing system capable of executing computer-readable instructions), and the aforementioned input and output devices take other forms now known or later developed in other exemplary embodiments. Generally, computer system 218 includes at least the minimum processing, input, and / or output devices necessary for practicing one or more embodiments.

[0122] Furthermore, those skilled in the art will understand that in some exemplary embodiments, one or more elements of the aforementioned computer device 218 are located at remote locations and connected to other elements via a network. Additionally, one or more embodiments are implemented on a distributed system with one or more nodes, wherein each part of the implementation (e.g., control engine 106) resides on a different node within the distributed system. In one or more embodiments, a node corresponds to a computer system. Alternatively, in some exemplary embodiments, a node corresponds to a processor with associated physical memory. In some exemplary embodiments, a node alternatively corresponds to a processor with shared memory and / or resources.

[0123] Figure 3 A luminaire 302 according to some exemplary embodiments is shown. See also Figures 1-3 , Figure 3 The 302 lamp is Figure 1 The physical implementation of the luminaire 102. The luminaire 302 is located in the surrounding environment 391, which may be a hazardous environment. Figure 3 The luminaire 302 includes a housing 303, a plurality of light sources 342, and a sensor module 360 ​​coupled to the housing 303. The housing 303 may have one or more segments. In this case, the housing 303 consists of segments 341 and 343. Segment 341 is disposed on top of segment 343 and includes a top cap 374, which may be hingedly coupled to the remainder of segment 341. Segment 341 may form a cavity in which one or more components of the luminaire 302 (e.g., one or more power supplies 140, controller 104) may be disposed.

[0124] Similarly, one or more components of the luminaire 302 (e.g., one or more light sources 342, antenna assembly 339) may be at least partially disposed on or within a segment 343 of the housing 303. When components are disposed on a segment of the housing 303 (e.g., segment 343), such components may be at least partially covered and protected by protective devices (e.g., lens 351). When the housing 303 has multiple segments, one or more communication links (e.g., communication link 105) may be provided between them. Furthermore, these multiple components may be designed to be coupled to each other so that the entire housing 303 complies with applicable standards (e.g., hazardous location requirements).

[0125] One or more portions of the housing 303 may be made of a thermally conductive material (e.g., metal). In some cases, such as for Figure 3 The luminaire 302, and the heat sink assembly 345 (sometimes referred to herein as heat sink 345 simply) may be disposed on a portion (or a segment thereof) of the housing 303 and / or integral with a portion (or a segment thereof). In this particular example, the heat sink 345 is integral with a portion of a segment 343 of the housing 303. The heat sink assembly 345 typically has one or more features (in this case, heat sink fins 347) that increase the surface area of ​​the heat sink assembly 345, thereby improving its heat transfer efficiency.

[0126] These features of the heat sink assembly 345 can be any number and / or have any of a variety of configurations. In this case, the heat sink 347 is a vertically oriented protrusion that extends outward from the segment 343 of the housing 303 and is substantially equidistantly spaced around the outer periphery of the segment 343 of the housing 303. Minor exceptions may exist when the sensor module 360 ​​is coupled to the outer surface of the housing 303, as in this case. Specifically, the mounting feature 369 of the segment 343 of the housing 303 can be coupled to the sensor module 360. The mounting feature 369 can have any of a variety of configurations. For example, in this case, the sensor module 360 ​​includes a tubular extension 366 extending radially from the segment 343 of the housing 303. Alternatively or otherwise, the tubular extension 366 may be part of the mounting feature 369. As another example, the mounting feature 369 may be an opening in the wall of the segment 343 of the housing 303. In any case, mounting feature 369 may include any one of a plurality of coupling features coupled to complementary coupling features disposed on sensor module 360. In this case, no heat sink 347 is adjacent to sensor module 360, as a gap that, in some examples, allows for the proper functioning of the sensor in sensor module 360.

[0127] Sensor module 360 ​​may have housing 361 that contains one or more of its components (e.g., sensor, lens 362, baffle 335, electrical conductor (a form of communication link 105)). Lamp 302, incorporating the various components of sensor module 360 ​​(e.g., housing 361), may be designed and made of such materials to meet any applicable standards for the surrounding environment 391 in which lamp 302 is located. For example, if the surrounding environment 391 in which lamp 302 is located is a hazardous environment, a safety barrier (e.g., safety barrier 136) may be provided within housing 303 of lamp 302 for any electrical conductor operating between sensor module 360 ​​and housing 303 of lamp 302. Similarly, components within sensor module 360 ​​coupled to those electrical conductors may be designed to operate at lower voltages to avoid generating sparks or arcs.

[0128] By coupling sensor module 360 ​​to the exterior of housing 303 of luminaire 302, sensor module 360 ​​can measure a wider range of parameters that affect the operation of luminaire 302. Furthermore, exemplary sensor module 360 ​​can be adjustable, allowing the parameters measured by the sensors of sensor module 360 ​​to be specific to a given volume of space relative to luminaire 302. Exemplary embodiments allow one or more sensor modules 360 to be securely and efficiently coupled to housing 303 of luminaire 302, enabling sensor modules 360 to be positioned in the surrounding environment, thereby allowing a controller (e.g., controller 104) to more effectively monitor, control, and predict the operation of luminaire 302.

[0129] Sensor module 360 ​​can be coupled to housing 303 using one or more of a plurality of coupling features. For example, in this case, sensor module 360 ​​can be snap-fitted to mounting feature 369 of housing 303. In some exemplary embodiments, when sensor module 360 ​​is coupled to housing 303, sensor module 360 ​​can move relative to housing 303 in one or more of a plurality of directions (e.g., rotate, tilt upward, tilt downward). In this way, regardless of how luminaire 302 is mounted (e.g., mounted to a wall, pole, bracket), sensor module 360 ​​can be adjusted such that the sensor within sensor module 360 ​​is correctly oriented (e.g., aimed) for effective operation. For example, if sensor of sensor module 360 ​​operates most effectively when it is pointing directly downward toward the ground, sensor module 360 ​​can be oriented to allow this, even if housing 303 of luminaire 302 is not mounted along a true vertical axis. Examples are as follows. Figures 6-8 As shown.

[0130] in addition, Figure 3The antenna assembly 339 of the luminaire 302 is mounted within a cavity formed by a lens 351 adjacent to the light source 342. For example, in this case, the distal portion of the antenna assembly 339 protrudes through a hole in a circuit board 348 on which the light source 342 is disposed. Since the antenna assembly 339 is positioned behind the lens 351, the lens 351 serves as a diffuser for the light emitted by the light source 342 and to protect the antenna assembly 339. The shape and size of the antenna assembly 339 in this example can be designed to have minimal or no impact on the light emitted by the light source 342.

[0131] Figure 3 A labeling component 378 (e.g., a sticker, nameplate) attached to the outer surface of the luminaire 302 is also shown. Here, the labeling component 378 is a sticker affixed to a portion of the outer surface of part 341 of the housing 303 of the luminaire 302. The labeling component 378 may include information about the luminaire 302. This information may include, but is not limited to, the manufacturer's name and address, rated voltage, rated current, maximum lumen output, model number, serial number, and NEMA rating.

[0132] Figure 4 Another luminaire 402 is shown according to some exemplary embodiments. See also Figures 1-4 Similar to Figure 3 The outer casing 303, Figure 4 The housing 403 of the lamp 402 has two segments: segment 441 and segment 443. Additionally, with... Figure 3 Similar to lamp 302, Figure 4 The luminaire 402 has a heat sink assembly 445 disposed on a portion of a segment 443 of the housing 403. In this case, the heat sink 447 is configured as a vertically oriented protrusion along the entire outer periphery of the segment 443 of the housing 403. The luminaire 402 is located in an ambient environment 491, which may be a hazardous environment.

[0133] A sensor module 460 is also coupled to the housing 403. To accommodate this coupling, mounting features 469 are provided at the distal ends of two or more adjacent heat sinks 447, allowing the sensor module 460 to be coupled to the housing 403. In this case, the mounting features 469 may include one or more coupling features (in this case, invisible holes) aligned with complementary coupling features 464 (in this case, slots traversing the flange 463 in the sensor module 460). In addition to the flange 463, the sensor module 460 also includes an extension 466 disposed between the flange 463 and the housing 461. One or more fastening devices 465 (one form of coupling feature) are used to couple the sensor module 460 to the mounting features 469, wherein each fastening device 465 is configured to pass through the coupling features 464 (in this case, slots) in the flange 463 of the sensor module 460 and the coupling features (in this case, holes) in the mounting features 469. By using a slot for coupling feature 464 in flange 463 of sensor module 460, sensor module 460 can rotate about the axis formed by extension 466 (i.e., along the slot formed as coupling feature 464) to help properly align the sensor of sensor module 460 with housing 403 of lamp 402.

[0134] Figure 4 Another feature of the luminaire 402 is a lens 451, which is used to diffuse the light emitted by the light source 442 of the luminaire 402, wherein the lens 451 and the light source 442 are substantially similar Figure 3 The counterpart in the diagram. There is also a marking component 478 attached to segment 441 of housing 403, which is substantially similar to... Figure 3 The identification component 378.

[0135] Figure 5A and Figure 5B A portion of a luminaire 502 according to certain exemplary embodiments is shown. Specifically, Figure 5A A top-side perspective view of a portion of luminaire 502 is shown. Figure 5B A cross-sectional side view of the sensor module 560 and mounting feature 569 is shown. See also Figures 1-5B , Figure 5A and Figure 5B The luminaire 502 includes a housing segment 543, a heat sink assembly 545 disposed on a portion of the outer surface of the segment 543, and a sensor module 560 coupled to a mounting feature 569 of the segment 543. The luminaire 502 is located in an surrounding environment 591, which may be a hazardous environment. Without the housing segment 541, Figure 5AA cavity formed by the body 544 of segment 543 (consisting of one or more walls) is shown, in which one or more components (e.g., wires, light sources) can be disposed. Figure 5A and 5B The heatsink 547 is constructed in a manner similar to Figure 3 The heat sink 347 is interrupted at the location where the mounting feature 569 is positioned to couple to the sensor module 560.

[0136] In addition to the following, Figure 5A and 5B The sensor module 560 is basically similar to Figure 4 The sensor module 460. For example, the flange 563 of the sensor module 560 has a plurality of coupling features 564 in the form of slots, and a plurality of fastening devices 565 pass through these coupling features to couple the sensor module 560 to the mounting features 569. Figure 5A and Figure 5B The extension 566 of the sensor module 560 and Figure 4 The extension 466 differs at least in that the extension 566 has a plurality of joints 583 which allow the housing 561 to rotate relative to the flange 563 in at least one direction.

[0137] For example, connector 583 may allow housing 561 to rotate about an axis defined by extension 566 adjacent to connector 583. Alternatively, connector 583 may allow housing 561 to move up and down, left and right, and / or in any other direction relative to flange 563. In this case, extension 566 may include one or more features (e.g., pawl, locking pin, fastening sleeve) that allow housing 561 to remain fixed in position relative to flange 563 once it is positioned by a user (e.g., user 150) relative to the desired position of flange 563 (and the housing of luminaire 502).

[0138] Figure 5B A channel 568 passing through the extension 566 is also shown, which allows a communication link (e.g., an electrical conductor, an electrical connector) to be disposed therein. Figure 5B A sealing member 597 (e.g., gasket, O-ring, silicone) is also shown disposed between the outer surface of flange 563 and mounting feature 569. In this case, the sealing member 597 helps maintain the requirements of the luminaire to meet applicable standards for hazardous environments when coupled to sensor module 560.

[0139] Figures 6-8 Other luminaires according to certain exemplary embodiments are shown. See also Figures 1-8 , Figure 6The luminaire 602 includes a housing 603 having segments 641 and 643. The luminaire 602 is located in an ambient environment 691, which may be a hazardous environment. Furthermore, a heat sink assembly 645 is disposed on the outer surface of segment 643 and includes a plurality of vertically oriented heat sink fins 647. Mounting features 669 are provided at the distal ends of two or more adjacent heat sink fins 647, allowing the sensor module 660 to be coupled to the housing 603. Similarly, the heat sink fins 647 are disposed along the entire outer periphery of segment 643. The sensor module 660 and its various components (e.g., sensor housing 661, extension 666, flange 663, coupling features 664) are coupled with... Figure 4 The sensor module 460 and its corresponding components are substantially the same. A fastening device 665 is used to couple the sensor module 660 to the mounting feature 669 of the housing 603 of the luminaire 602. Here, the sensor module 660 is oriented along axis 653, which is at an angle (approximately 45° offset) relative to axis 654 (along which the housing 603 of the luminaire 602 is oriented), thus illustrating how the position of the exemplary sensor module 660 is adjustable relative to the housing 603 of the luminaire 602.

[0140] Figure 7 The luminaire 702 includes a housing 703 having segments 741 and 743. The luminaire 702 is located in an ambient environment 791, which may be a hazardous environment. Furthermore, a heat sink assembly 745 is disposed on the outer surface of segment 743 and includes a plurality of vertically oriented heat sink fins 747. Mounting features 769 are provided at the distal ends of two or more adjacent heat sink fins 747, allowing the sensor module 760 to be coupled to the mounting features 769 of the housing 703. Similarly, the heat sink fins 747 are disposed along the entire outer periphery of segment 743. The sensor module 760 and its various components (e.g., sensor housing 761, extension 766, flange 763, coupling features 764) are coupled with... Figure 4 The sensor module 460 and its corresponding components are substantially the same. A fastening device 765 is used to couple the sensor module 760 to the mounting feature 769 of the housing 703 of the luminaire 702. Here, the sensor module 760 is oriented along axis 753, which is nearly parallel (approximately 5° offset) to axis 754 (along which the housing 703 of the luminaire 702 is oriented), again illustrating how the position of the exemplary sensor module 760 is adjustable relative to the housing 703 of the luminaire 702.

[0141] Figure 8The luminaire 802 includes a housing 803 having segments 841 and 843. The luminaire 802 is located in an ambient environment 891, which may be a hazardous environment. Furthermore, a heat sink assembly 845 is disposed on the outer surface of segment 843 and includes a plurality of vertically oriented heat sink fins 847. Mounting features 869 are provided at the distal ends of two or more adjacent heat sink fins 847, allowing the sensor module 860 to be coupled to the mounting features 869 of the housing 803. Similarly, the heat sink fins 847 are disposed along the entire outer periphery of segment 843. The sensor module 860 and its various components are... Figure 4 The sensor module 460 and its corresponding components are substantially the same. A fastening device 865 is used to couple the sensor module 860 to the mounting feature 869 of the housing 803 of the luminaire 802. Here, the sensor module 860 is oriented along axis 853, which is nearly parallel (approximately 15° offset) to axis 854 (along which the housing 803 of the luminaire 802 is oriented), again illustrating how the position of the exemplary sensor module 860 is adjustable relative to the housing 803 of the luminaire 802.

[0142] Figure 9A and Figure 9B A portion of yet another luminaire 902 according to certain exemplary embodiments is shown. Specifically, Figure 9A A top-side perspective view of a portion of the luminaire 902 is shown. Figure 9B A cross-sectional side view of this portion of the luminaire 902 is shown. See also Figures 1-9B In addition to the following, Figure 9A and Figure 9B The 902 lamp is basically similar to Figure 4 and Figures 6-8 Lighting fixtures. For example. Figure 9A and Figure 9B The luminaire 902 includes a housing 903 having a segment 943. The luminaire 902 is located in an ambient environment 991, which may be a hazardous environment. Furthermore, a heat sink assembly 945 is disposed on the outer surface of the segment 943 and includes a plurality of vertically oriented heat sink fins 947. Mounting features 969 are provided at the distal ends of two or more adjacent heat sink fins 947, allowing a sensor module 960 to be coupled to the mounting features 969 of the housing 903. Similarly, the heat sink fins 947 are disposed along almost the entire outer periphery of the segment 943.

[0143] The sensor module 960 of the luminaire 902 can be coupled to and separated from a mounting feature 969 disposed on the distal ends of some of the heat sink fins 947 of a heat sink 945, which is mounted by a user (e.g., user 150) on the outer surface of the body 944 of a segment 943 of the housing without the use of tools. Similarly, the position of the sensor module 960 relative to the segment 943 of the housing 903 can be adjusted and fixed in place by the user without the use of tools. For example, when the sealing member 997-1 is disposed around the extension 966 within the coupling feature 957 of the mounting feature 969, the sealing member 997-1 can use friction to hold the sensor module 960 in a specific position relative to the housing 903, thus allowing for rotational adjustment without tools. Alternatively, a fixing member 929 (in this case, a fixing screw) may be provided in the hole 927 in the mounting feature 969, which can be fixed with a tool (e.g., a screwdriver) to fix and / or adjust the position (e.g., rotate) of the sensor module 960 relative to the segment 943 of the housing 903. Additionally, the mounting feature 969 may have multiple coupling features to fix the sensor module 960.

[0144] In this configuration, the coupling feature 967 of the mounting feature 969 located on some of the distal ends of the heat sink 947 is a hole that passes vertically through the mounting feature 969 and intersects with the coupling feature 957 (in this case, a horizontal hole) in the mounting feature 969. The coupling feature 957 in the mounting feature 969 receives the distal portion of the extension 966 of the sensor module 960, and the coupling feature 973 located in the extension 966 receives a fastening device 965 (a coupling feature). In this configuration, the fastening device 965 is a spring-loaded pin with a pull ring at the tip. In some cases, multiple coupling features 973 may be present around the outer periphery of the extension 966 and / or along its length, thereby providing the fastening device 965 for locking in multiple positions of the sensor module 960 relative to the housing 903. Alternatively, the fastening device 965 may be a molded, movable hinge-type locking feature.

[0145] In this configuration, the extension 966 of the sensor module 960 may have a coupling feature 956 disposed within the channel 968 and / or at the distal end of the extension 966. In this configuration, the coupling feature 956 of the sensor module 960 may be an electrical connector end that complements the coupling feature 972 of the mounting feature 969 (which is also an electrical connector end in this case). When the extension 966 of the sensor module 960 is inserted into the coupling feature 957, and when the coupling feature 956 of the sensor module 960 is coupled to the coupling feature 972 of the mounting feature 969, the fastening device 965 is coupled to the coupling feature 973 disposed on the outer surface of the extension 966. In some cases, the channel 968 may be filled with one or more materials (e.g., potting compounds) to provide a mechanical safety barrier for the encapsulation and to help the luminaire 902 comply with applicable standards for the surrounding environment in which the luminaire 902 is located (e.g., hazardous environments).

[0146] In some exemplary embodiments, the coupling feature 972 may include a conductor passing through it while preventing dust, gas, moisture, and other elements from passing through. For example, the communication link 905 and at least a portion of the coupling feature 972 to which the communication link 905 is connected may be potted. Additionally, an electrical safety barrier (e.g., safety barrier 136 as described above) may be provided within the housing 903 and only allow low levels of power to be transmitted to the sensor module 960, thereby preventing the sensor device 960 from becoming a source of ignition when the surrounding environment 991 where the lighting fixture 902 is located is in a hazardous situation.

[0147] Alternatively or in addition, one or more sealing members 997 may be used to provide a barrier relative to the surrounding environment 991. For example, as Figure 9B As shown, the extension 966 of the sensor module 960 may have a channel provided on its outer surface, and a sealing member 997-1 may be disposed in the channel. Thus, when the sensor module 960 is coupled to the housing 903, the sealing member 997-1 may abut against the inner surface of the coupling feature 957 of the mounting feature 969. The sealing member 997-1 may also provide a friction fit to allow rotational adjustment of the sensor module 960 relative to the housing 903 and to maintain the relative position between the sensor module 960 and the housing 903.

[0148] In this configuration, the coupling feature 973 is a slot, pawl, or hole that traverses some, but not all, of the thickness of the extension 966 and extends around some or all of the outer periphery of the extension 966. Thus, when the extension 966 is inserted at a specific point within the coupling feature 957 of the mounting feature 969, the spring-loaded pin of the coupling feature 965 engages with the coupling feature 973 and prevents the extension 966 from moving relative to the coupling feature 957 of the mounting feature 969, at least preventing inward or outward movement, and potentially preventing rotation. When the ring of the coupling feature 965 is pulled, the pin of the coupling feature 965 disengages from the coupling feature 973 of the extension 966, thereby allowing the sensor module 960 to move within the coupling feature 957.

[0149] The coupling feature 972 may be filled with one or more materials (e.g., potting compounds) to provide a mechanical safety barrier for the encapsulation and to help the luminaire 902 meet applicable standards for the surrounding environment in which the luminaire 902 is located (e.g., hazardous environments). Additionally, in some cases, the mounting feature 969 may include internal features (e.g., separate channels) to separate the inherently safe area (the area adjacent to the mechanical safety barrier disposed in the coupling feature 972) from other types of electrical conductors within the housing 903 of the luminaire 902.

[0150] Additionally, as described above, in this configuration, the coupling feature 972 of the mounting feature 969 and the coupling feature 956 of the sensor module 960 are complementary electrical connector ends. When the sensor module 960 is disengaged from the mounting feature 969 of the luminaire 902, the coupling features 972 and / or 956 can be exposed to the surrounding environment 991. In this case, one or more mechanisms can be added to ensure the integrity and / or compliance with applicable standards of these coupling features. Furthermore, due to the inherent safety provided by the encapsulated mechanical safety barrier at and / or around the coupling feature 972, resulting in the receiving feature 969 and everything downstream (e.g., the sensor module 960), this design facilitates maintenance (e.g., adjustment, replacement) of the sensor module 960 during full operation without requiring the luminaire 902 or its components (e.g., controller, power supply) to be de-energized. In other words, the sensor module 960 can be removed while the rest of the luminaire 902 is energized and operational without adversely affecting the operation of the rest of the luminaire 902. Similarly, the sensor module 960 can be coupled to the housing 903 when the luminaire 902 is powered on and operational, without adversely affecting the operation of the rest of the luminaire 902.

[0151] For example, a movable cover can be provided on the coupling feature 972 of the mounting feature 969, such that when the sensor module 960 is disengaged from the rest of the luminaire 902, the coupling feature 972 is covered by the cover. When the sensor module 960 is about to be coupled to the rest of the luminaire 902, the cover can automatically move away to allow the coupling feature 972 and the coupling feature 956 to engage. When the sensor module 960 is about to be disengaged from the rest of the luminaire 902, the cover can automatically re-cover the coupling feature 972.

[0152] As described above, the exemplary sensor module 960 may include one or more of a plurality of components. For example, Figure 9B The sensor module 960 includes a housing 961 forming a cavity 992. Figure 9B A sensor 938 and a mounting bracket 937 are disposed within the cavity 992, with the sensor 938 mounted on the mounting bracket. Also disposed within the cavity 992 of the sensor module 960 are one or more communication links 905 (in this case, electrical conductors), extending from a coupling feature 956 disposed within a channel 968 of the extension 966. Furthermore, a baffle 935 is coupled to the bottom end of the housing 961, and a lens 962 is disposed within the center of the baffle 935. The combination of the baffle 935 and the lens 962 surrounds the cavity 992 of the sensor module 960.

[0153] Figure 10 A cross-sectional side view of a portion of another luminaire 1002 according to certain exemplary embodiments is shown. See also Figures 1-10 In addition to the following, Figure 10 The luminaire 1002 is basically similar to the luminaire described above. For example, Figure 10 The luminaire 1002 includes a housing 1003 having segments 1043. The luminaire 1002 is located in an surrounding environment 1091, which may be a hazardous environment. Furthermore, a heat sink assembly 1045 is disposed on the outer surface of the segments 1043 and includes a plurality of vertically oriented heat sink fins 1047. Mounting features 1069 are provided on the walls 1044 of the segments 1043 of the housing 1003, allowing the sensor module 1060 to be coupled to the mounting features 1069 of the housing 1003.

[0154] Figure 10The sensor module 1060 is not directly coupled to the mounting feature 1069. Instead, a bridging device 1075 is disposed between the extension 1066 of the sensor module 1060 and the mounting feature 1069 and is directly coupled to both. The bridging device 1075 may have a body 1076 through which a channel 1077 is disposed along the length of the body 1076. The channel 1077 may be used to accommodate one or more components of the luminaire 1002 (e.g., communication links such as electrical conductors, potting compounds).

[0155] Furthermore, each end of the bridging device 1075 may have any of a variety of coupling features of any type. Such coupling features can be used to help ensure that the luminaire 1002 meets any applicable standards. In this example, the distal end of the bridging device 1075 is similar to... Figure 9A and Figure 9B The extension 966 is coupled to the mounting feature 969 in the same way that the extension 966 is coupled to the mounting feature 1069. The proximal end of the bridging device 1175 is coupled to the sensor module 1060 by abutting the flange 1063 and holding the two ends together by a fastening device 1065 (in this case, a threaded collar). A sealing member 1097 may be provided at the joint of the flange 1063 abutting the proximal end of the body 1076 of the bridging device 1075.

[0156] As described above, the exemplary sensor module 1060 may include one or more of a plurality of components. For example, Figure 10 The sensor module 1060 includes a housing 1061 forming a cavity 1092. Figure 10 A sensor 1038 is disposed within cavity 1092; a mounting bracket 1037 on which the sensor 1038 is mounted; and a circuit board 1019 disposed adjacent to the sensor 1038. Furthermore, a baffle 1035 is coupled to the bottom end of housing 1061, and a lens 1062 is disposed within the center of baffle 1035. The combination of baffle 1035 and lens 1062 surrounds cavity 1092 of sensor module 1060.

[0157] Figure 11 A cross-sectional side view of a portion of another luminaire 1102 according to some exemplary embodiments is shown. See also Figures 1-11 In addition to the following, Figure 11 The luminaire 1102 is basically similar to the luminaire described above. For example, Figure 11The luminaire 1102 includes a housing 1103 having a segment 1143. The luminaire 1102 is located in an surrounding environment 1191, which may be a hazardous environment. Furthermore, a heat sink assembly 1145 is disposed on the outer surface of the segment 1143 and includes a plurality of vertically oriented heat sink fins 1147. Mounting features 1169 are provided at the distal ends of two or more adjacent heat sink fins 1147, allowing a sensor module 1160 to be coupled to the mounting features 1169 of the housing 1103. Similarly, the heat sink fins 1147 are disposed along the entire outer periphery of the segment 1143.

[0158] and Figure 10 Similar to the luminaire 1002, the bridging device 1175 is disposed between the extension 1166 and the mounting feature 1169 of the sensor module 1160 and is directly coupled to the extension 1166 and the mounting feature 1169 of the sensor module 1160. However, in this case, the proximal end of the bridging device 1175 extends beyond the extension 1166 and is within the cavity 1192 formed by the housing 1161 of the sensor module 1160. In this case, one or more coupling features 1186 (in this case, holes) can be used to couple the proximal end of the bridging device 1175 to the sensor module 1160. In this example, the fastening device 1181 traverses the coupling feature 1186 of the sensor module 1160 and is disposed within the coupling feature 1182 (in this case, a threaded hole) in the proximal end of the bridging device 1175 to couple the bridging device 1175 and the sensor module 1160 to each other.

[0159] As described above, the exemplary sensor module 1160 may include one or more of a plurality of components. For example, Figure 11 The sensor module 1160 includes a housing 1161 forming a cavity 1192. Apart from the portion of the bridging device 1175, Figure 11 A sensor 1138 is disposed within cavity 1192; a mounting bracket 1137 is mounted on which the sensor 1138 is mounted; and a circuit board 1119 is disposed adjacent to the sensor 1138. Furthermore, a baffle 1135 is coupled to the bottom end of housing 1161, and a lens 1162 is disposed within the center of baffle 1135. The combination of baffle 1135 and lens 1162 surrounds cavity 1192 of sensor module 1160.

[0160] Figure 12 A cross-sectional side view of a portion of another luminaire 1202 according to some exemplary embodiments is shown. See also Figures 1-12 In addition to the following, Figure 12 The luminaire 1202 is basically similar to the luminaire described above. For example, Figure 12The luminaire 1202 includes a housing 1203 having a segment 1243. The luminaire 1202 is located in an surrounding environment 1291, which may be a hazardous environment. Furthermore, a heat sink assembly 1245 is disposed on the outer surface of the segment 1243 and includes a plurality of vertically oriented heat sink fins 1247. Mounting features 1269 are provided at the distal ends of two or more adjacent heat sink fins 1247, allowing the sensor module 1260 to be coupled to the mounting features 1269 of the housing 1203. Similarly, the heat sink fins 1247 are disposed along the entire outer periphery of the segment 1243.

[0161] Sensor module 1260 is the same as the one mentioned above. Figures 3-5B The sensor module 1260 is mechanically coupled to the mounting feature 1269 in a manner substantially similar to that described above. Figure 9A and Figure 9B The manner described is substantially similar to that of electrically coupling to the remainder of the luminaire 1202. In this case, mounting features 1269 may include one or more coupling features (in this case, invisible holes) aligned with complementary coupling features 1264 (in this case, slots traversing the flange 1263 in the sensor module 1260). In addition to the flange 1263, the sensor module 1260 also includes an extension 1266 disposed between the flange 1263 and the housing 461.

[0162] One or more fastening devices 1265 (a type of coupling feature) are used to couple sensor module 1260 to mounting feature 1269, wherein each fastening device 1265 is configured to pass through coupling feature 1264 (in this case, a slot) in flange 1263 of sensor module 1260 and coupling feature (in this case, a hole) in mounting feature 1269. By using the slot for coupling feature 1264 in flange 1263 of sensor module 1260, sensor module 1260 can rotate about the axis formed by extension 1266 (i.e., along the slot formed as coupling feature 1264) to help properly align the sensor of sensor module 1260 relative to housing 1203 of lamp 1202.

[0163] In some exemplary embodiments, a coupling feature 1272 disposed within the channel 1257 of the mounting feature 1269 and coupled to the coupling feature 1256 may include an encapsulated mechanical safety barrier, as described above, which isolates the sensor module 1260 such that the sensor module 1260 only needs to be inherently safe to comply with applicable standards. A sealing member 1297 may be disposed between the flange 1263 and the mounting feature 1269 to prevent the surrounding environment 1291 from intruding into the sensor module 1260.

[0164] As described above, the exemplary sensor module 1260 may include one or more of a plurality of components. For example, Figure 12 The sensor module 1260 includes a housing 1261 forming a cavity 1292. Figure 12 A sensor 1238 is disposed within the cavity 1292; a mounting bracket 1237 on which the sensor 1238 is mounted; and a circuit board 1219 disposed near the sensor 1238. Also disposed within the cavity 1292 of the sensor module 1260 are one or more communication links 1205 (in this case, electrical conductors), extending from a coupling feature 1256 disposed within a channel 1268 of the extension 1266. Furthermore, a baffle 1235 is coupled to the bottom end of the housing 1261, and a lens 1262 is disposed within the center of the baffle 1235. The combination of the baffle 1235 and the lens 1262 surrounds the cavity 1292 of the sensor module 1260.

[0165] Figure 13A and Figure 13B Another luminaire 1302 according to certain exemplary embodiments is shown. Specifically, Figure 13A A side view of the luminaire 1302 is shown. Figure 13B A bottom perspective view of the luminaire 1302 is shown. Furthermore, Figures 14A to 14C The following are illustrated according to certain exemplary embodiments. Figure 13A and Figure 13B The sensor module 1360. Specifically, Figure 14A A rear view of the sensor module 1360 is shown. Figure 14B A bottom view of the sensor module 1360 is shown. Figure 14C A top view of the sensor module 1360 is shown.

[0166] also, Figure 15A and Figure 15B The following are illustrated according to certain exemplary embodiments. Figure 13A and Figure 13B Part of the lighting fixture 1302. Specifically, Figure 15A A front view of the luminaire 1302 without the sensor module 1360 is shown. Figure 15B A detailed top view of the mounting feature 1369 is shown. Furthermore, Figures 16A to 16H The following are illustrated according to certain exemplary embodiments. Figure 13A and Figure 13B Detailed view of luminaire 1302. Specifically, Figure 16A A front perspective view of the sensor module 1360 detached from the mounting feature 1369 is shown. Figures 16B to 16FA front perspective view of a sensor module 1360 is shown, which is coupled to a mounting feature 1369 and is in various positions relative to the mounting feature 1369. Figure 16G and Figure 16H A cross-sectional side view of the sensor module 1360 coupled to the mounting feature 1369 is shown.

[0167] See Figures 1 to 16H Except as described below, the luminaire 1302 of FIG13 is substantially similar to the luminaire described above. For example, the luminaire 1302 of FIG13 includes a housing 1303 having segments 1341 and 1343. The luminaire 1302 is located in an surrounding environment 1391, which may be a hazardous environment. Furthermore, a heat sink assembly 1345 is disposed on the outer surface of segment 1343 and includes a plurality of vertically oriented heat sink fins 1347. Mounting features 1369 are provided at the distal ends of two or more adjacent heat sink fins 1347, which allow the sensor module 1360 to be coupled to the mounting features 1369 of the housing 1303. Similarly, the heat sink fins 1347 are disposed along the entire outer periphery of segment 1343.

[0168] like Figures 14A to 15B As shown, the sensor module 1360 and mounting feature 1369 are configured differently from those already shown and described above. In this case, the extension 1466 of the sensor module 1360 has two opposing spring adjustment tabs (spring adjustment tab 1481 and spring adjustment tab 1482) disposed on opposite sides of the extension 1466 and oriented opposite to each other. Furthermore, the extension 1466 includes a retaining rib 1484 disposed on the bottom of the extension 1466. Additionally, the extension 1466 may have one or more channels 1486 disposed along its outer periphery between the retaining rib 1484 and the distal end of the extension 1466. In this case, the extension 1466 has two channels 1486 (channel 1486-1 and channel 1486-2) positioned adjacent to each other and parallel to each other, wherein a sealing member 1497-1 is disposed in channel 1486-1 and a sealing member 1497-2 is disposed in channel 1486-2.

[0169] The mounting feature 1369 of housing 1303 is similar to that described above with respect to other mounting features. Coupling feature 1557 (in this case, a hole) may have another coupling feature 1572 (in this case, an electrical connector) disposed therein, wherein coupling feature 1572 is coupled to a complementary coupling feature (not shown) of sensor module 1360. Mounting feature 1369 also includes a platform 1585 extending remotely from the distal end of coupling feature 1557. A first channel 1589 and a second channel 1598 are disposed in platform 1585, wherein the first channel 1589 is deeper, longer, and narrower than the second channel 1598. Additionally, channel 1589 is disposed adjacent to the distal end of coupling feature 1557, and channel 1598 is disposed adjacent to the distal end of channel 1589 remotely from coupling feature 1557. In addition, channel 1598 is aligned with platform 1585, so that platform 1585 extends upward relative to channel 1598 on both sides of channel 1598.

[0170] like Figures 14A to 16F As shown, features on the extension 1466 of the sensor module 1360 (e.g., spring adjusting tab 1481, spring adjusting tab 1482, retaining rib 1484, sealing member 1497-1, sealing member 1497-2) allow the sensor module 1360 to be held in place and angled relative to the housing 1303 when combined with features of the mounting feature 1369 (e.g., coupling feature 1557, platform 1585, channel 1589, channel 1598). Specifically, when the extension 1466 of the sensor module 1360 is correctly inserted into the coupling feature 1557 of the mounting feature 1369, the retaining rib 1484 of the extension 1466 of the sensor module 1360 is disposed within and engages with the channel 1598 of the mounting feature 1369.

[0171] Furthermore, when the sensor module 1360 rotates within the coupling feature 1557, the spring adjustment tabs 1481 and 1482 of the extension 1466 of the sensor module 1360 interact with the platform 1585 and channel 1589 of the mounting feature 1369. When the sensor module 1360 is initially inserted into the mounting feature 1369, as... Figure 16A and Figure 16B As shown, sensor module 1360 is substantially inverted (i.e., lens 1462 facing upwards), so that spring adjustment tab 1481, spring adjustment tab 1482, and retaining rib 1484 are prevented from contacting channels 1598, channels 1589, and platform 1585.

[0172] When the sensor module 1360 is rotated to its desired position in any direction (clockwise in this case), such as Figure 16C and Figure 16DAs shown, one of the spring adjustment tabs (in this case, spring adjustment tab 1482) approaches the right side of the platform 1585. At this time, the other spring adjustment tab (in this case, spring adjustment tab 1481) slides across the same side of the platform (in this case, the right side) and enters the channel 1598. At this time, the insertion and rotation of the sensor module 1360 relative to the mounting feature 1369 is completed without tools and without manipulating spring adjustment tabs 1481 or 1482. In addition, as the sensor module 1360 rotates, the retaining rib 1484 begins to engage the channel 1589, which prevents the sensor module 1360 from being pulled out and away from the mounting frame 1369.

[0173] Sensor module 1360 continues to rotate in the same direction, as... Figure 16E As shown. Once the spring adjusting tab 1481 passes through channel 1598 and then through the other side of platform 1585 (in this case, the left side), the orientation of the spring adjusting tab 1481 prevents reverse rotation (in this case, counterclockwise) because the adjusting tab of spring clip 1481 protrudes and is close to the left side of platform 1585. Similarly, with the adjusting tab of spring clip 1482 protruding and close to the right side of platform 1585, the sensor module 1360 is also prevented from continuing to rotate in the same direction (in this case, clockwise). Thus, the rotational range of motion of sensor module 1360 is limited by spring clips 1481 and 1482.

[0174] The position of the spring clip on the extension 1466 can be configured to provide a limited range of motion, or a greater range of motion, for the sensor module 1360 relative to the housing 1303. Similarly, the arrangement of the spring clip can center the range of motion of the sensor module 1360 vertically. Alternatively, the arrangement of the spring clip can deviate the center of motion of the sensor module 1360 from vertical. Additionally, at this stage, the retaining rib 1484 remains engaged with the channel 1589, thereby continuing to prevent the sensor module 1360 from being pulled out and away from the mounting frame 1369.

[0175] When a user wants to remove the sensor module 1360 from the housing 1303, it can be done without tools. For example, as Figure 16FAs shown, the sensor module 1360 can be rotated in either direction (clockwise in this case) until one of the spring adjustment tabs (spring adjustment tab 1481 in this case) is about to contact one side (right side in this case) of the platform 1585. When the user presses the adjustment tab of spring adjustment tab 1481 inward, and then continues to rotate the sensor module 1360 in the same direction as the adjustment tab of spring adjustment tab is pressed inward, the platform 1585 no longer interferes with (contacts) spring adjustment tab 1481. This allows the sensor module 1360 to continue rotating relative to the housing 1303 until the retaining rib 1484 passes through the channel 1589. At this point, the sensor module 1360 can be pulled away from the housing, disengaging the sensor module 1360 from the housing 1303.

[0176] Due to the design of the exemplary sensor module in this paper, such as Figures 13A to 16H As shown, the sensor module 1360 can be coupled to and / or detached from the housing 1303 during operation of the luminaire 1302 without creating a source of ignition, adversely affecting the operation of the luminaire 1302, or otherwise causing damage. Furthermore, regardless of whether the sensor module 1360 is coupled to the housing 1303, the luminaire 1302 complies with applicable standards for hazardous locations when it is located in a hazardous environment.

[0177] Furthermore, the sealing members 1497-1 and 1497-2 of the extension 1466 of the sensor module 1360 interact with the inner surface of the coupling feature 1557 of the mounting feature 1369 to provide a frictional fit to maintain the angular position of the sensor module 1360 relative to the housing 1303. Thus, a user (e.g., user 150) can couple the sensor module 1360 of the lamp 1302 to and from the mounting feature 1369 without tools. Similarly, the position of the sensor module 1360 relative to the housing 1303 can be adjusted and fixed in place by the user without tools.

[0178] In addition, such as Figures 14A to 14C , Figure 16G and Figure 16HAs shown, the various components of sensor module 1360 are designed to minimize the superposition of tolerances between these components in order to achieve the highest sensitivity of sensor 1638. In this case, sensor module 1360 includes housing 1461 forming cavity 1692. Sensor 1638 is disposed within cavity 1692; mounting bracket 1637 on which sensor 1638 is mounted; and circuit board 1619 disposed near sensor 1638. Also disposed in cavity 1692 of sensor module 1360 is a portion of coupling feature 1557 (as described above), which is also disposed within channel 1668 of extension 1466. Furthermore, baffle 1435 is coupled to the bottom end of housing 1461, and lens 1462 is disposed within the center of baffle 1435. The combination of baffle 1435 and lens 1462 surrounds cavity 1692 of sensor module 1360.

[0179] In this configuration, circuit board 1619 is coupled to and centered on mounting bracket 1637 by sensor 1638. Additionally, mounting bracket 1637 and lens 1462 are centered on baffle 1435 via one or more locating rings 1488 that project upwards from baffle 1435 into corresponding channels (e.g., channel 1487 in housing 1461, channel 1694 in mounting bracket 1637). The locating rings 1488 in baffle 1435 and corresponding channels in adjacent components of sensor module 1360 may be provided along all or one or more discrete portions of the periphery of such components. For example, as... Figure 16H As shown, discrete protrusions 1693 from the top surface of baffle 1435 can extend through holes in mounting bracket 1637. In these ways, multiple components of sensor module 1360 can be "keyed" so that adjacent components can only be assembled in a limited number (e.g., one) manner.

[0180] One or more sealing members 1697 may be used to provide an environmental seal between two or more components of the sensor module 1360. For example, as Figure 16G and Figure 16H As shown, the sealing member 1697 may be disposed in a channel in the top surface of the baffle 1435 to provide an environmental seal between the baffle 1435 and the mounting bracket 1637.

[0181] Figure 17 A system 1700 including a luminaire 1702 and a sensor module 1760 according to certain exemplary embodiments is shown. Specifically, the sensor module 1760 is directly coupled to a housing 1899 other than the housing 1703 of the luminaire 1702, but the sensor module 1760 is communicatively coupled to the luminaire 1702. See also Figures 1-17In this configuration, housing 1899 is an explosion-proof junction box with housing 1803. Sensor module 1760 is coupled to housing 1803 of housing 1899 in a substantially similar manner to how the sensor module described above can be coupled to the housing of a luminaire. Because housing 1899 is an explosion-proof housing, sensor module 1760 is coupled to housing 1803 of housing 1899 in such a manner that the combination complies with applicable standards for hazardous environments (e.g., NEMA 7).

[0182] In this case, the luminaire 1702 can be substantially similar to the luminaire described above, except that the housing 1703 of the luminaire 1702 does not have a mounting feature (e.g., the one described above) that the sensor module 1760 can be coupled to. Figures 13A to 16H (Mounting feature 1369). Conversely, a communication link 1705 exists between the housing 1899 and the luminaire 1702, allowing communication between the sensor module 1760 and the luminaire 1702. For example, the housing 1899 may include its own controller (including a control engine, communication module, and transceiver) and other components (e.g., antenna assembly) to allow wired and / or wireless communication with the controller of the luminaire 1702 and its corresponding components (using communication link 1705).

[0183] In some cases, exemplary embodiments may relate to lighting systems. Such lighting systems may include luminaires located in hazardous environments, wherein the luminaires include a controller. Such lighting systems may also include a sensor module communicatively coupled to the controller of the luminaires, wherein the sensor module includes a sensor module housing and a sensor disposed within the sensor module housing, wherein the sensor module housing includes a first coupling feature coupled to a hazardous location enclosure. In this case, the sensor module may be inherently safe.

[0184] In some cases, the lighting system may also include a safety barrier that limits the amount of power transmitted from the housing to the sensor device. In this case, the safety barrier may be a capacitive barrier. Additionally, in such a lighting system, the mounting features of the luminaire housing may include a channel through which an electrical connection between the luminaire housing and the sensor module is provided, and the channel is encapsulated. Furthermore, in such a lighting system, the sensor module housing may be configured to withstand the impact requirements of enclosures in hazardous locations.

[0185] In some other cases, exemplary embodiments may relate to a lighting system. Such a lighting system may include a first luminaire housing of a first luminaire, wherein the first luminaire housing includes a first mounting feature. The lighting system may also include a sensor module removably coupled to the first luminaire housing, wherein the sensor module includes a sensor module housing and a sensor disposed within the sensor module housing, wherein the sensor module housing includes a first coupling feature coupled to the first mounting feature of the first luminaire housing. In some cases, the lighting system may also include a mechanical bridging device disposed between a receiving feature and a sensor device. In some other cases, the sensor module can be coupled, disconnected, and adjusted relative to the first luminaire housing without tools.

[0186] The exemplary sensor modules described herein can be modular and enhance the luminaire network in a lighting system. For example, a sensor module coupled to a luminaire in a lighting system can measure one or more parameters. These measurements can be used by the luminaire to which the sensor module is coupled to operate the luminaire. In some cases, these measurements can also be transmitted to one or more other luminaires, users, network managers, and / or other components in the lighting system. For example, one or more other luminaires in the system can use these measurements to operate those other luminaires.

[0187] Furthermore, the luminaire configured to receive the exemplary sensor module can be flexible regarding one or more parameters measured by the sensor module. For example, when coupled to the exemplary sensor module for measuring ambient light, the luminaire can automatically recognize the ambient light measurements provided by the sensor module and operate accordingly using these measurements. If the user subsequently exchanges the ambient light sensor module with a different sensor module for measuring movement (occupancy), the luminaire can automatically recognize the movement measurements provided by the sensor module and operate accordingly using these measurements.

[0188] Exemplary embodiments allow for more reliable and efficient luminaires, especially when those luminaires are located in hazardous environments. Exemplary embodiments allow sensor modules to be integrated with the luminaire (e.g., located inside the luminaire, coupled to the outside of the luminaire), while allowing the luminaire to comply with applicable standards. These integrated sensor modules allow the luminaire to work with controllers and / or other components of the luminaire. Exemplary embodiments also provide users with options to improve operational efficiency and extend the lifespan of the luminaire or its components. Exemplary embodiments also allow for interchangeable and modular constructions in lighting systems.

[0189] While the embodiments described herein are based on exemplary embodiments, those skilled in the art will understand that various modifications are entirely within the scope and spirit of this disclosure. Those skilled in the art will understand that the exemplary embodiments described herein are not limited to any specific application discussed, and that the embodiments described herein are illustrative and not restrictive. Equivalents of the elements shown in the description of the exemplary embodiments will be self-evident to those skilled in the art, and the manner in which other embodiments can be constructed using this disclosure will also be self-evident to those skilled in the art. Therefore, the scope of the exemplary embodiments is not limited thereto.

Claims

1. A lighting system comprising: a luminaire, the luminaire being located in a hazardous environment, wherein the luminaire comprises a controller and a first coupling feature disposed on a luminaire housing; and a sensor module communicably coupled to the controller of the luminaire, wherein the sensor module is also electrically and mechanically coupled to the luminaire housing, wherein the sensor module comprises a sensor module housing and a sensor disposed within the sensor module housing, wherein the sensor module housing comprises a second coupling feature that is electrically and mechanically coupled to the first coupling feature, wherein the second coupling feature comprises at least one sealing member, wherein each of the at least one sealing members is disposed in a corresponding one of one or more channels, wherein the one or more channels are disposed along an outer periphery of an extension of the sensor module between a retaining rib on a bottom of the extension and a distal end of the extension, and wherein the at least one sealing members interact with and engage an inner surface of the first coupling feature, wherein the first coupling feature is coupled to and decoupled from the second coupling feature without the use of tools, wherein the first and second coupling features allow a user to adjust a position of the sensor module relative to the luminaire housing within a range while still complying with applicable standards of the hazardous environment when the sensor module is coupled to the luminaire.

2. A lighting system comprising: a luminaire, the luminaire comprising a controller and a first coupling feature disposed on a luminaire housing; and a sensor module communicably coupled to the controller of the luminaire, wherein the sensor module is also electrically and mechanically coupled to the luminaire housing, wherein the sensor module comprises a sensor module housing and a sensor disposed within the sensor module housing, wherein the sensor module housing comprises a second coupling feature that is electrically and mechanically coupled to the first coupling feature, wherein the first coupling feature is coupled to and decoupled from the second coupling feature, wherein the second coupling feature comprises at least one sealing member, wherein each of the at least one sealing members is disposed in a corresponding one of one or more channels, wherein the one or more channels are disposed along an outer periphery of an extension of the sensor module between a retaining rib on a bottom of the extension and a distal end of the extension, and wherein the at least one sealing members interact with and engage an inner surface of the first coupling feature, wherein the first and second coupling features allow a user to adjust a position of the sensor module relative to the luminaire housing within a range when the sensor module is coupled to the luminaire.

3. The lighting system of claim 2, further comprising: a mechanical bridging device disposed between the luminaire and the sensor module.

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