Abstract: A lighting device includes a light source, an image sensor, a controller, a memory, and a wireless transceiver. The light source is configured to emit light for general illumination. The image sensor is configured to acquire an image of an area illuminated by the light source. The controller is coupled to control the image sensor and to receive the acquired image of the illuminated area from the image sensor. The controller is configured to operate the wireless transceiver to receive identification information from a wireless device in the illuminated area. The controller is further configured to automatically generate a visual signature based on image information of a person or object, obtained from the image of the illuminated area. The controller also is configured to store the visual signature of the person or object in the memory in association with the wireless device identification information.

Abstract: Disclosed are examples of lighting devices and other devices that are equipped with a cellular transceiver that is configured to communicate using licensed cellular radio frequency spectrum in both a small-scale cellular network and a large-scale cellular communication network. By utilizing a short-range, low-power cellular transceiver setting, a lighting device facilitates communication, within the space in which the lighting device is installed, of messages between the lighting device and other types of user devices. Such an equipped lighting device may be configured to participate in the generation and delivery of different types of messages, such as data, emergency broadcast information, news and other information as well extend the reach of devices within the space in which the equipped lighting devices are located.

Abstract: Networked intelligent lighting devices may utilize visual light communication to perform autonomous neighbor discovery, for example, as part of a map generation process. Individually, each intelligent lighting device within an installation transmits a series of packets via visual light communication for receipt by one or more of the other intelligent lighting devices. Receiving intelligent lighting devices record the number of received packets from each transmitter. Records of numbers of received packets are conveyed via a data communication network to a centralized process. The centralized process utilizes the conveyed records to determine neighbor relationships between lighting devices, for example to generate a map of devices as located within the installation.

Abstract: A lighting device includes a light source, an image sensor, a controller, a memory, and a wireless transceiver. The light source is configured to emit light for general illumination. The image sensor is configured to acquire an image of an area illuminated by the light source. The controller is coupled to control the image sensor and to receive the acquired image of the illuminated area from the image sensor. The controller is configured to operate the wireless transceiver to receive identification information from a wireless device in the illuminated area. The controller is further configured to automatically generate a visual signature based on image information of a person or object, obtained from the image of the illuminated area. The controller also is configured to store the visual signature of the person or object in the memory in association with the wireless device identification information.

Abstract: Determining respective locations of lighting devices in a service area includes a sensing device that receives light signals emitted by a number of lighting devices that are configured in a common plane. The sensing device is located outside the common plane, e.g. below the plane of light outputs of fixture mounted in or below a ceiling. Respective distances between each lighting device and the sensing device are calculated based on the received light signals. The locations of the plurality of lighting devices relative to the sensing device are calculated based on the calculated distances using trilateration, triangulation or parallax. In other systems, each lighting device includes a sensing device and the light signals are emitted by a pendant or wall-mounted sensor located outside the common plane. In another system, the locations are determined by sensing devices in the lighting devices based on light reflected from objects in the service area.

Abstract: A system includes luminaires at a premises, where each luminaire has a light source, processor and radio frequency (RF) transceiver. The processor is configured to control the RF transceiver of the respective luminaire to transmit ranging signals to neighboring luminaires and receive response signals from neighboring luminaires. The processor computes time of flight (ToF) values relative to the neighboring luminaires. The system also includes a location solving server having a processor configured to receive the ToF values from the luminaires, compute relative distances between the luminaires based on the ToF values, and determine relative locations of the luminaires within the premises based on the computed relative distances between luminaires. Knowledge of the relative locations of the luminaires, for example, may be used in personnel or asset tracking, e.g. based on data sent via light from the luminaires or by ranging and response signals exchanged with RF enabled assets.

Abstract: Networked intelligent lighting devices may utilize visual light communication to perform autonomous neighbor discovery, for example, as part of a map generation process. Individually, each intelligent lighting device within an installation transmits a series of packets via visual light communication for receipt by one or more of the other intelligent lighting devices. Receiving intelligent lighting devices record the number of received packets from each transmitter. Records of numbers of received packets are conveyed via a data communication network to a centralized process. The centralized process utilizes the conveyed records to determine neighbor relationships between lighting devices, for example to generate a map of devices as located within the installation.

Abstract: A lighting device includes a light source, an image sensor, a controller, a memory, and a wireless transceiver. The light source is configured to emit light for general illumination. The image sensor is configured to acquire an image of an area illuminated by the light source. The controller is coupled to control the image sensor and to receive the acquired image of the illuminated area from the image sensor. The controller is configured to operate the wireless transceiver to receive identification information from a wireless device in the illuminated area. The controller is further configured to automatically generate a visual signature based on image information of a person or object, obtained from the image of the illuminated area. The controller also is configured to store the visual signature of the person or object in the memory in association with the wireless device identification information.

Abstract: An identification marking is incorporated into a light fixture to provide a uniquely identifiable light fixture. The identification marking is humanly imperceptible. Location information for the uniquely identifiable light fixture is obtained by a mobile device after identifying the light fixture based on the identification marking. Location of the mobile device is estimated based on the obtained location information of the uniquely identifiable light fixture.

Abstract: A collection of defining features of an object uniquely identify the object. The defining features individually and the collection as a whole are humanly imperceptible. Various uniquely identifiable objects are mapped within a space based on corresponding collections of defining objects and known locations. Location information for the uniquely identifiable object is obtained by a mobile device after identifying the object based on the collection of defining features. Location of the mobile device is estimated based on obtained location information of one or more uniquely identifiable objects.

Abstract: Defining features of a light fixture collectively form a light fixture fingerprint and uniquely identify the light fixture. The light fixture fingerprint is humanly imperceptible. Location information for the uniquely identifiable light fixture is obtained by a mobile device after identifying the light fixture based on the light fixture fingerprint. Location of the mobile device is estimated based on the obtained location information of the uniquely identifiable light fixture.

Abstract: Networked intelligent lighting devices may utilize visual light communication to perform autonomous neighbor discovery, for example, as part of a map generation process. Individually, each intelligent lighting device within an installation transmits a series of packets via visual light communication for receipt by one or more of the other intelligent lighting devices. Receiving intelligent lighting devices record the number of received packets from each transmitter. Records of numbers of received packets are conveyed via a data communication network to a centralized process. The centralized process utilizes the conveyed records to determine neighbor relationships between lighting devices, for example to generate a map of devices as located within the installation.

Abstract: Disclosed are examples of lighting devices and other devices that are equipped with a cellular transceiver that is configured to communicate using licensed cellular radio frequency spectrum in both a small-scale cellular network and a large-scale cellular communication network. By utilizing a short-range, low-power cellular transceiver setting, a lighting device facilitates communication, within the space in which the lighting device is installed, of messages between the lighting device and other types of user devices. Such an equipped lighting device may be configured to participate in the generation and delivery of different types of messages, such as data, emergency broadcast information, news and other information as well extend the reach of devices within the space in which the equipped lighting devices are located.

Abstract: Disclosed are examples of lighting devices and other devices that are equipped with a cellular transceiver that is configured to communicate using licensed cellular radio frequency spectrum in both a small-scale cellular network and a large-scale cellular communication network. By utilizing a short-range, low-power cellular transceiver setting, a lighting device facilitates communication, within the space in which the lighting device is installed, of messages between the lighting device and other types of user devices. Such an equipped lighting device may be configured to participate in the generation and delivery of different types of messages, such as data, emergency broadcast information, news and other information as well extend the reach of devices within the space in which the equipped lighting devices are located.

Abstract: Disclosed are examples of lighting devices and other devices that are equipped with a cellular transceiver that is configured to communicate using licensed cellular radio frequency spectrum in both a small-scale cellular network and a large-scale cellular communication network. By utilizing a short-range, low-power cellular transceiver setting, a lighting device facilitates communication, within the space in which the lighting device is installed, of messages between the lighting device and other types of user devices. Such an equipped lighting device may be configured to participate in the generation and delivery of different types of messages, such as data, emergency broadcast information, news and other information as well extend the reach of devices within the space in which the equipped lighting devices are located.

Abstract: Networked intelligent lighting devices may utilize visual light communication to perform autonomous neighbor discovery, for example, as part of a map generation process. Individually, each intelligent lighting device within an installation transmits a series of packets via visual light communication for receipt by one or more of the other intelligent lighting devices. Receiving intelligent lighting devices record the number of received packets from each transmitter. Records of numbers of received packets are conveyed via a data communication network to a centralized process. The centralized process utilizes the conveyed records to determine neighbor relationships between lighting devices, for example to generate a map of devices as located within the installation.