Presence detector and its application
First Claim
1. A presence detector system comprising a passive infrared sensor, an image sensor operating in the visible spectral range to detect a presence, and an electronic evaluator operationally coupled with the passive infrared sensor and the image sensor for a combined evaluation of the sensors'"'"' signals, and wherein the image sensor is activated in response to a signal from the passive infrared sensor and further wherein the electronic evaluator has at least one output for operating a conditioning facility for affecting ambient conditions prevailing in a space.
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Accused Products
Abstract
The presence detector has a passive infrared sensor for detecting the presence of persons in a room, an image sensor operating in the visible spectral range and an electronic evaluator for the evaluation of signals from these sensors. The signal from the passive infrared sensor is used to actuate the image sensor and, if necessary, to switch on the room lighting. Once activated, the image sensor is used to detect both movement and occupancy of a space being monitored. Application of the presence detector for the “on-demand” activation and/or control of conditioning facilities of a room, wherein the signals of both sensors are used for the control of the conditioning facility.
67 Citations
16 Claims
- 1. A presence detector system comprising a passive infrared sensor, an image sensor operating in the visible spectral range to detect a presence, and an electronic evaluator operationally coupled with the passive infrared sensor and the image sensor for a combined evaluation of the sensors'"'"' signals, and wherein the image sensor is activated in response to a signal from the passive infrared sensor and further wherein the electronic evaluator has at least one output for operating a conditioning facility for affecting ambient conditions prevailing in a space.
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7. A presence detector system comprising a passive infrared sensor, an image sensor operating in the visible spectral range selected from the group consisting of a complementary metal oxide semiconductor image sensor and an active pixel sensor, and an electronic evaluator operationally coupled with the passive infrared sensor and the image sensor, and wherein the image sensor is activated in response to a signal from the passive infrared sensor, and the electronic evaluator has at least one output for operating a conditioning facility.
- 8. A presence detector system comprising a passive infrared sensor, an image sensor operating in the visible spectral range, and an electronic evaluator operationally coupled with the passive infrared sensor and the image sensor, wherein the image sensor is activated in response to a signal from the passive infrared sensor, and the electronic evaluator has at least one output for operating a conditioning facility, further wherein the image sensor provides a signal to the electronic evaluator having a measure of ambient brightness.
- 10. A presence detector system comprising a passive infrared sensor, an image sensor operating in the visible spectral range, and an electronic evaluator operationally coupled with the passive infrared sensor and the image sensor, wherein the image sensor is activated in response to a signal from the passive infrared sensor, and the electronic evaluator has at least one output for operating a conditioning facility, further wherein the image sensor comprises a brightness sensor operationally coupled with the electronic evaluator.
- 14. A presence detector system comprising a passive infrared sensor, an image sensor operating in the visible spectral range, and an electronic evaluator operationally coupled with the passive infrared sensor and the image sensor, wherein the image sensor is activated in response to a signal from the passive infrared sensor, and the electronic evaluator has at least one output for operating a conditioning facility, wherein the conditioning facility comprises a climate control system and the electronic evaluator provides control signals on the output to control said climate control system.
Specification