Abstract: Disclosed examples offer ways to manage dialogues between radio frequency-enabled devices and conserve energy of the devices. A system includes a plurality of radio frequency-enabled nodes networked to communicate with a radio frequency-enabled device. The radio frequency-enabled device includes a radio frequency transceiver and a processing device. The processing device is configured to, in response to expiration of a time period or an occurrence of an event, transition the radio frequency-enable device from a standby mode to a transmit mode. In the transmit mode, a start dialogue message is broadcast. After a pause of a predetermined length following the transmission of the start dialogue message, the radio frequency-enabled device transitions to a receive mode to receive a data packet transmitted from one or more of the radio frequency-enabled nodes. Upon completion of receiving the data packet, the radio frequency-enabled device transitions from the receive mode to the standby mode.

Abstract: In response to receiving a lighting system element request message from a gateway to detect a subset or all wireless RF floor beacons in the space, a lighting system element receives via a local wireless communication network, a respective floor beacon identification message including a detected respective wireless RF beacon identifier transmitted from a detected respective wireless RF floor beacon. The lighting system element determines a respective RF signal strength between the detected respective wireless RF floor beacon from the respective lighting system element based on the respective floor beacon identification message. The lighting system elements transmits, via the local wireless communication network, to the gateway a respective lighting system element report message including the detected respective wireless RF beacon identifier of the detected respective wireless RF floor beacon, the respective RF signal strength, and the respective lighting system element identifier.

Abstract: A luminaire-based positioning system including a plurality of luminaires, each respective luminaire including a luminaire identifier. The system includes a gateway including a luminaire node map of commissioned luminaires with a commissioned luminaire identifier and commissioned location coordinates of each commissioned luminaire. The gateway includes an undesignated luminaire roster of undesignated luminaires with a set of undesignated location coordinates. Further, the gateway includes a plurality of projected received signal strength indication (RSSI) values. Additionally, the gateway includes programming to determine an association of an uncommissioned luminaire to a safest fit undesignated luminaire of the undesignated luminaire roster. Further, programming to assign to the uncommissioned luminaire the set of undesignated location coordinates of the safest undesignated luminaire.

Abstract: A lighting fixture includes a bus printed circuit board that receives power from an external source. The bus printed circuit board has traces that route the power to a set of exposed pads, and also has mechanical features for receiving an electronic device. The lighting fixture further includes a set of one or more drivers, having mechanical features for engaging the mechanical features of the bus printed circuit board to mechanically mount the driver to the bus printed circuit board. Each of the set of one or more drivers further includes a set of spring contacts positioned to engage at least some of the exposed pads of the bus printed circuit board when the driver is mounted to the bus printed circuit board, to supply power to the driver. The lighting fixture further includes one or more light sources driven by the one or more drivers.

Abstract: A continuous load high-power flyback converter includes a first transformer having a first primary winding, a first secondary winding, and a first auxiliary winding, and a second transformer having a second primary winding, a second secondary winding, and a second auxiliary winding. The first primary winding and the second primary winding are connected in parallel between a power source and a transistor. The first secondary winding and the second secondary winding are connected in series to a diode and form an output of the continuous load high-power flyback converter. A load is connected between the output and ground. The first auxiliary winding and the second auxiliary winding are connected in series, and used to generate a control signal for the transistor. Connecting the primary windings in parallel and the secondary windings in series reduces the reflected voltage on the transistor for a given output voltage.

Abstract: A lighting system includes a lighting device within a luminaire that generates a controllable light output. The lighting system also includes an input device within the luminaire. The input device includes a first selection mechanism communicatively coupled to the lighting device. The first selection mechanism receives a first input to transition the lighting system between a set of control states. The input device also includes a second selection mechanism communicatively coupled to the lighting device. The second selection mechanism receives a first rotational input to control a light intensity output of the lighting device or a correlated color temperature of the lighting device.

Abstract: A luminaire includes a housing, a downlight that includes one or more first light sources configured to emit a first light downwardly from the housing, a waveguide, and one or more second light sources. The waveguide is formed of a portion of an optical material and characterized by opposing planar faces joined by one or more edge faces about a periphery of the optical material. The waveguide forms at least a portion of an uppermost optical surface of the luminaire. The one or more second light sources are coupled with the housing and configured to emit a second light into the optical material through at least one of the one or more edge faces. The waveguide is configured to emit at least a portion of the second light upwardly from an upper one of the planar faces.

Abstract: A light fixture includes an electronics housing, opposing connector assemblies and at least one light module. The electronics housing and the at least one light module are each supported by and extend between the opposing connector assemblies such that a gap is provided between the electronics housing and light module.

Abstract: An area optical cover for a linear light source extends along an axial direction. The optical cover includes a portion of an optical material that forms a constant cross-section transverse to the axial direction. An outer surface of the cross-section is substantially planar, and an inner surface of the cross-section forms a plurality of facets. Each of the facets forms a refractive surface that is configured to refract a corresponding portion of light from the light source, and a return surface that connects the refractive surface with a refractive surface of an adjacent facet. When the outer surface is oriented horizontally on a lower side of the portion of the optical material, and the linear light source is positioned at an installation height above the inner surface, all facets within at least 30 degrees of nadir from the light source are optimized to provide a selected light distribution.

Abstract: A baffle component for a luminaire includes a portion of opaque material that forms a front surface and a back surface as major surfaces. The front surface includes multiple ridges. The material also includes a top surface and a bottom surface, and a first end surface and a second end surface. The first end surface includes a first coupling feature, and the second end surface includes a second coupling feature that is configured to engage the first coupling feature of a second baffle component that is substantially identical to the baffle component. A baffle for a luminaire includes a plurality of such components. The baffle components engage with one another, with the first coupling feature of each of the baffle components engaging with the second coupling feature of another of the baffle components, to form a shape that surrounds a central opening of the luminaire.

Abstract: A lighting system includes first and second component housed within respective first and second housings, and a connector. The first housing defines a first substantially rectangular cross-section that extends from a first end to a second end. The first component is capable of emitting light. The second housing defines a second substantially rectangular cross-section. The second substantially rectangular cross-section extends from a third end to a fourth end. The connector connects the second end with the third end. The connector defines a third substantially rectangular cross-section that is substantially identical to the first and second substantially rectangular cross-sections. The third substantially rectangular cross-section extends along a path from the second end to the third end. The path includes at least one curve of at least fifteen degrees between the second end and the third end, and/or, the substantially rectangular cross-section rotates at least fifteen degrees about the path.

Abstract: Examples of lighting equipment provide services to and on behalf of a biomechatronically enhanced organism and/or a biomechatronic component of the organism. Such services include charging, communications, location-related services, control, optimization, client-server functions and distributed processing functionality. The biomechatronically enhanced organism anchor biomechatronic component utilize such services provided by and/or via the lighting equipment to enable, enhance or otherwise influence operation of the organism.

Abstract: A constant power backup power supply for LED lighting fixtures is disclosed. The power supply includes a storage battery that is charged while an AC power source is in an ON condition. When AC power transitions to an OFF condition, a capacitor bank charged by the battery supplies current to the primary side of a flyback converter operating in discontinuous conduction mode. The secondary side of the flyback converter supplies constant output power to the LED lighting fixture for an arbitrary output voltage within a predetermined range.

Abstract: An example radio frequency (RF) communication system includes a plurality of RF nodes. The plurality of RF nodes includes a receiver RF node and a sender RF node. Each RF node includes a memory coupled to a processor along with delay assignment programming in the memory, which includes functions. The functions configure the sender RF node to transmit a data packet to the receiver RF node, and to transmit a delay report message. The functions configure the receiver RF node to receive the data packet and to receive the delay report message. The receiver RF node further assigns the RF node delay value of the receiver RF node to a value not in the delay report message. Then, the receiver RF node waits a delay period of time, wherein the delay period of time corresponds to the assigned value or a multiple thereof, and additionally broadcasts the data packet.

Abstract: A lighting relay panel may include lower-cost features or components related to improved safety and reliability. In some cases, the relay panel includes a power supply capable of protecting the panel from high-voltage and high-current transients. A microcontroller may determine a power interruption based on a zero-cross signal received from the power supply, and may also configure latching relays during the interruption. In some implementations, the relay panel includes a relay sense circuit that is capable of receiving actuation signals from multiple relays connected to different phases of a power signal, and the microcontroller may synchronize or repeat the actuations based on a signal from the relay sense circuit. The microcontroller may generate relay addresses based on the relay positions within the relay panel. In some cases, the relay panel may include isolation circuits that are capable of providing an isolated control signal having an improved voltage range.

Abstract: An integrated light engine including flexible optics and a flexible light source, and lighting devices including the same, are provided. The integrated light engine includes a flexible light source configured to emit light, and flexible optics coupled to the flexible light source. The flexible optics beam shapes light emitted by the flexible light source. The integrated light engine is capable of entering a set of states, such that a portion of beam shaped light emitted by the integrated light engine in a first state is aimed in a first direction and a portion of beam shaped light emitted by the integrated light engine in a second state is aimed in a second direction. Different combinations of the flexible optics with the flexible light source result in the integrated light engine being able to enter a number of flexed states or being held in a substantially flat, substantially stiff state.

Abstract: Techniques are disclosed for programming a luminaire with location information, referred to herein as commissioning. Location information may include relative location information (e.g., the position of the luminaire relative to a reference point) and/or absolute location information (e.g., global coordinates for the luminaire). A commissioned luminaire can be configured to emit its location information via light-based communication (LCom). In some cases, the luminaire can be commissioned manually, by hard coding the luminaire with its location either at the luminaire itself or using a device (e.g., a smartphone, tablet, or a dedicated luminaire commissioning device) to program the luminaire with location information. In some cases, the luminaire can be commissioned automatically. In some cases, the luminaire may be configured to provide visual, aural, or tactile feedback to indicate that the luminaire has not received location data or that the luminaire has been moved.

Abstract: A recessed lighting fixture includes an elongated body including a flange and a pair of swing arms. The swing arms are deployable between a stowed configuration adjacent to the elongated body, to a deployed configuration wherein the swing arms extend radially from the elongated body. In the deployed configuration the swing arms are translatable along threaded members extending along the elongated body in order to clamp a ceiling or other surface between the swing arms and the flange to secure the recessed lighting fixture into a hole in the ceiling. The swing arms comprise removable portions that can be used to increase the range of thicknesses of surface in which the recessed lighting fixture can be installed.