Method for detecting objects in a surveillance area and optical sensor for carrying out the method
The method involves emitting transmitted light beams (2) by a transmitter (3), receiving received light beams (4) by a receiver (5)designed as a avalanche photodiode, and generating a object detection signal in an evaluation unit (8) in dependence on receiving signals from the receiver. Breakdown vo...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | The method involves emitting transmitted light beams (2) by a transmitter (3), receiving received light beams (4) by a receiver (5)designed as a avalanche photodiode, and generating a object detection signal in an evaluation unit (8) in dependence on receiving signals from the receiver. Breakdown voltage of the avalanche photodiode is detected. Bias voltage of the photo diode for implementation of object detection is determined in dependence of the calculated breakdown voltage. Ambient temperature of the avalanche photodiode is determined by a temperature sensor. An independent claim is also included for an optical sensor for detecting objects in a surveillance area. |
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