| 摘要 |
The present invention relates to a sensor ( 8 ) for use with an automatic door comprising at least two detectors ( 10, 12 ) based on different technologies, a processor ( 14 ) for processing the signals generated by at least two detectors ( 10, 12 ) in that it simultaneously uses the signals in order to combine the signals and to accurately detect the situation in a surveillance area ( 20, 22 ) sensed by the sensor ( 8 ).
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