Integrated occupancy and ambient light sensors
First Claim
1. A method executed on a computing device to control operation of a first lighting device that includes an illumination source and a light sensor, the method comprising:
- determining if the illumination source is operating in one of;
an on mode of operation and an off mode of operation;
in response to a determination that the illumination source is operating in the off mode of operation,pulsing operation of the illumination source to the on mode of operation to generate a light pulse; and
compressively sensing, using the light sensor, a first light level and a second light level associated with an area illuminated by the light pulse, wherein the first light level indicates a presence of a first entity in the area illuminated by the light pulse and the second light level indicates the presence of a second entity in the area illuminated by the light pulse;
generating a first light level map from the first light level by applying compressive sensing algorithms to the first light level and generating a second light level map from the second light level by applying compressive sensing algorithms to the second light level, wherein the first light level map identifies ambient light levels in areas illuminated by the illumination source, and wherein the second light level map identifies additional ambient light levels in the areas illuminated by the illumination source; and
performing a pixel-to-pixel comparison of the first light map and the second light map to identify movement vectors within the area illuminated by the light pulse, wherein the movement vectors indicate a movement and a direction of the movement of the second entity.
3 Assignments
0 Petitions
Accused Products
Abstract
Technologies are generally described herein for controlling and using integrated occupancy and ambient light sensors. In some examples, a lighting device includes an illumination source, a light sensor, and a transceiver. A determination can be made to determine if the illumination source is operating in an on mode of operation or an off mode of operation. In response to determining that the illumination source is operating in the off mode of operation, an instruction can be received at the lighting device to pulse operation of the illumination source to emit a light pulse. The lighting device can also be configured to receive an instruction to compressively sense, using the light sensor, a light level associated with an area illuminated by the light pulse. The lighting device can output data indicating the light level compressively sensed by the light sensor.
29 Citations
26 Claims
-
1. A method executed on a computing device to control operation of a first lighting device that includes an illumination source and a light sensor, the method comprising:
-
determining if the illumination source is operating in one of;
an on mode of operation and an off mode of operation;in response to a determination that the illumination source is operating in the off mode of operation, pulsing operation of the illumination source to the on mode of operation to generate a light pulse; and compressively sensing, using the light sensor, a first light level and a second light level associated with an area illuminated by the light pulse, wherein the first light level indicates a presence of a first entity in the area illuminated by the light pulse and the second light level indicates the presence of a second entity in the area illuminated by the light pulse; generating a first light level map from the first light level by applying compressive sensing algorithms to the first light level and generating a second light level map from the second light level by applying compressive sensing algorithms to the second light level, wherein the first light level map identifies ambient light levels in areas illuminated by the illumination source, and wherein the second light level map identifies additional ambient light levels in the areas illuminated by the illumination source; and performing a pixel-to-pixel comparison of the first light map and the second light map to identify movement vectors within the area illuminated by the light pulse, wherein the movement vectors indicate a movement and a direction of the movement of the second entity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A non-transitory computer-readable storage medium with instructions stored thereon to control operation of a first lighting device, the instructions comprising:
-
determining if an illumination source of the first lighting device is operating in an on mode of operation or an off mode of operation, the first lighting device comprising the illumination source, a light sensor, and a transceiver; in response to a determination that the illumination source is operating in the off mode of operation, transmitting, to the first lighting device, a pulse operation of the illumination source, wherein the pulse operation is configured to emit a light pulse and is configured to compressively sense, using the light sensor, a first light level and a second light level associated with an area illuminated by the light pulse, wherein the first light level indicates a presence of a first entity in the area illuminated by the light pulse and the second light level indicates the presence of a second entity in the area illuminated by the light pulse; and receiving, from the first lighting device, data that indicates one or more of the first light level and the second light level compressively sensed by the light sensor; generating a first light level map from the first light level by applying compressive sensing algorithms to the first light level and generating a second light level map from the second light level by applying compressive sensing algorithms to the second light level, wherein the first light level map identifies ambient light levels in areas illuminated by the illumination source, and wherein the second light level map identifies additional ambient light levels in the areas illuminated by the illumination source; and performing a pixel-to-pixel comparison of the first light map and the second light map to identify movement vectors within the area illuminated by the light pulse, wherein the movement vectors indicate a movement and a direction of the movement of the second entity. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A lighting system comprising:
-
a first lighting device that includes an illumination source and a light sensor; a controller, the controller configured to be in communication with the first lighting device, wherein the controller is configured to; determine if the illumination source is operating in an on mode of operation or an off mode of operation; in response to a determination that the illumination source is operating in the off mode of operation, generate a pulse operation and a measure operation of the illumination source, wherein the pulse operation is configured to emit a light pulse, and wherein the measure operation is configured to measure, using the light sensor, a first light level and a second light level associated with an area illuminated by the light pulse, wherein the first light level indicates a presence of a first entity in the area illuminated by the light pulse and the second light level indicates the presence of a second entity in the area illuminated by the light pulse; transmit, to the first lighting device, the pulse operation of the illumination source and the measure operation; and receive, at the controller, data indicating one or more of the first light level and the second light level measured by the light sensor; generate a first light level map from the first light level by applying compressive sensing algorithms to the first light level and generate a second light level map from the second light level by applying compressive sensing algorithms to the second light level, wherein the first light level map identifies ambient light levels in areas illuminated by the illumination source, and wherein the second light level map identifies additional ambient light levels in the areas illuminated by the illumination source; and perform a pixel-to-pixel comparison of the first light map and the second light map to identify movement vectors within the area illuminated by the light pulse, wherein the movement vectors indicate a movement and a direction of the movement of the second entity. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
-
Specification