| 摘要 |
This disclosure concerns a procedure for counting the number of stopping objects, such as persons who are coming to wait for an elevator or equivalent. The movements and stopping of the objects are followed by the aid of at least one Doppler radar, whose output signal amplitude changes are used to identify the change of velocity of the objects. The number of objects stopping is claculated from the magnitude of the amplitude changes and/or from the number of Doppler radar pulses recorded.
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