Lighting devices with sensors for detecting one or more external conditions and networked system using such devices
Exemplary lighting devices have sensors, intelligence in the form of programmed processors and communication capabilities. Such a device is configured to monitor one or more conditions external to a lighting device not directly related to operational performance of the respective lighting device. One or more such devices can work in a networked system, to support a variety of applications separate and in addition to the lighting related functions of the device(s).
1. A lighting device, comprising:
a light source;
a sensor coupling, configured to present a sensor connection interface standardized across at least a plurality of lighting devices, the standardized connection interface being compatible with a plurality of different types of sensors;
a sensor connected to the standardized connection interface of the sensor coupling, the sensor being of one of the types and located so as to sense one of a plurality of conditions external to the lighting device not directly related to operational performance of the lighting device, the sensor being configured to output a signal responsive to the one sensed condition via the standardized connection interface of the sensor coupling;
a processor coupled to the sensor coupling for processing data responsive to the signal from the sensor;
a memory accessible to the processor;
a program corresponding at least in part to the one type of the sensor, stored in the memory for execution by the processor, for controlling at least one function of the processor responsive to the condition sensed by the sensor and for causing the processor to implement a standardized application programming interface with respect to the at least one function; and
a communication interface accessible by the processor, configured to enable the processor to communicate information resulting from the at least one function of the processor responsive to the condition sensed by the sensor through a communications network in a manner conforming to the standardized application programming interface.
2. The lighting device of claim 1 , further comprising:
a second sensor coupling configured to present a standardized sensor connection interface, the standardized connection interface being compatible with the plurality of different types of sensors;
a second sensor connected to the standardized connection interface of the second of the sensor coupling, the second sensor being of a second one of the types different from the first type and located so as to sense a second one of the conditions external to the lighting device not directly related to operation of the lighting device, the second sensor being configured to output a second signal responsive to the first sensed condition via the standardized connection interface of the second sensor coupling,
wherein the processor is further coupled to process data responsive to the second signal from the second sensor; and
programming corresponding at least in part to the second type of the sensor, stored in the memory for execution by the processor, for controlling at least one function of the processor responsive to the condition sensed by the second sensor.
3. The lighting device as in claim 2 , wherein the processor is also coupled to control the light source.
4. The lighting device as in claim 3 , further comprising:
a third sensor of a type and located so as to sense a condition related to operation of the lighting device, the third sensor being configured to output a third signal responsive to the sensed condition related to operation of the lighting device, wherein:
the processor is further coupled to process data responsive to the third signal from the third sensor, and
programming executed by the processor configures the processor to control operation of the light source at least in part responsive to the processing of the data responsive to the third signal from the third sensor.
5. The lighting device as in claim 4 , wherein the third sensor is a type of sensor selected from the group consisting of: a sensor for detecting temperature of one or more components of the lighting device, a feedback light sensor for detecting intensity or other characteristic of light produced by the lighting device, an occupancy sensor for detecting a condition indicative of occupancy of a region to be illuminated by the lighting device and an ambient light sensor for detecting ambient light near the lighting device.
6. The lighting device as in claim 4 , wherein the light source comprises one or more solid state light emitters.
7. The lighting device as in claim 2 , wherein:
the sensor is a sensor of a type and is located so as to detect an ambient condition around or near the lighting device, and
the second sensor is of a type and is located so as to detect a remote condition at some distance from lighting device.
8. The lighting device as in claim 7 , wherein:
the sensor is a type of sensor selected from the group consisting of: a fire detector, a smoke detector, an airborne chemical detector, an airborne biological agent detector, a carbon monoxide sensor, an air temperature sensor, an air pressure detector, a humidity sensor, a moisture detector, an air speed detector, and a micro-electro-mechanical system type sensor; and
the second sensor is a type of sensor selected from the group consisting of: a directional light sensor, a video or still image sensor, and a sound detector.
9. The lighting device as in claim 1 , wherein the sensor is a type of sensor selected from the group consisting of: a fire detector, a smoke detector, an airborne chemical detector, an airborne biological agent detector, a carbon monoxide sensor, an air temperature sensor, an air pressure detector, a humidity sensor, a moisture detector, an air speed detector, and a micro-electro-mechanical system type sensor.
10. The lighting device as in claim 1 , wherein the sensor is a type of sensor selected from the group consisting of: a directional light sensor, a video or still image sensor, and a sound detector.
11. The lighting device as in claim 1 , further comprising:
another sensor of a type and located so as to sense a condition related to operation of the lighting device, the other sensor being configured to output a signal responsive to the sensed condition related to operation of the lighting device, wherein:
the processor is also coupled to control the light source,
the processor is further coupled to process data responsive to the third signal from the third sensor, and
programming executed by the processor configures the processor to control operation of the light source at least in part responsive to the processing of the data responsive to the signal from the other sensor.
12. The lighting device as in claim 1 , wherein the program further causes the processor to communicate information resulting from the at least one function of the processor responsive to the condition sensed by the sensor to a third party not directly related to operational performance of the lighting device.
13. A module for use with a light source, the module comprising:
a sensor coupling, configured to present a sensor connection interface standardized across at least a plurality of lighting devices, the standardized connection interface being compatible with a plurality of different types of sensors;
a sensor connected to the standardized connection interface of the sensor coupling, the sensor being of one of the types and located so as to sense one of a plurality of conditions not directly related to operational performance of the light source, the sensor being configured to output a signal responsive to the one sensed condition via the standardized connection interface of the sensor coupling:
a processor coupled to the sensor coupling for processing data responsive to the signal from the sensor;
a memory accessible to the processor;
a program corresponding at least in part to the one type of the sensor, stored in the memory for execution by the processor, for controlling at least one function of the processor responsive to the condition sensed by the sensor and for causing the processor to implement a standardized application programming interface with respect to the at least one function; and
a communication interface accessible by the processor, configured to enable the processor to communicate information resulting from the at least one function of the processor responsive to the condition sensed by the sensor through a communications network in a manner conforming to the standardized application programming interface.
14. The apparatus of claim 13 , further comprising:
a second sensor coupling configured to present a standardized sensor connection interface, the standardized connection interface being compatible with the plurality of different types of sensors;
a second sensor connected to the standardized connection interface of a second of the sensor couplings, the second sensor being of a second one of the types different from the first type and located so as to sense a second one of the conditions not directly related to operation of the light source, the second sensor being configured to output a second signal responsive to the first sensed condition via the standardized connection interface of the second sensor coupling,
wherein the processor is further coupled to process data responsive to the second signal from the second sensor; and
programming corresponding at least in part to the second type of the sensor, stored in the memory for execution by the processor, for controlling at least one function of the processor responsive to the condition sensed by the second sensor.
15. The apparatus of claim 14 , further comprising:
a module housing containing at least the processor, memory and communication interface,
wherein the housing is configured for mounting together with a fixture containing the light source.
16. The apparatus of claim 14 , further comprising:
a second communication interface; and
a local wireless transceiver coupled to the second communication interface.
17. The apparatus of claim 14 , further comprising:
an output driver, coupled for control by the processor, configured to drive an information output device coupled to the apparatus,
wherein programming executed by the processor configures the apparatus to receive information for local output from the network via the communication interface and to operate the at least one output driver to cause the information output device to reproduce the received information.
18. The apparatus of claim 13 , further comprising:
a module housing containing at least the processor, memory and communication interface,
wherein the housing is configured for mounting together with a fixture containing the light source.
19. The apparatus of claim 13 , further comprising:
a second communication interface; and
a local wireless transceiver coupled to the second communication interface.
20. The apparatus of claim 13 , further comprising:
an output driver, coupled for control by the processor, configured to drive an information output device coupled to the apparatus,
wherein programming executed by the processor configures the apparatus to receive information for local output from the network via the communication interface and to operate the at least one output driver to cause the information output device to reproduce the received information.