Procedure for counting moving objects as they stop
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United States of America Patent
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-
Jan 10, 1989
Issued Date -
N/A
app pub date -
Apr 23, 1987
filing date -
Mar 27, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
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 calculated from the magnitude of the amplitude changes and/or from the number of Doppler radar pulses recorded.
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