Procedure for counting moving objects as they stop

Details Procedure for counting moving objects as they stop Procedure for counting moving objects as they stop

1987-04-23

1989-01-10

Tubbesing, T. H.

Communications: directive radio wave systems and devices (e.g.,

Presence detection only

By motion detection

187132, G01S 1356

Patent

active

047976756

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.

REFERENCES:
patent: 3634884 (1972-01-01), Ross
patent: 3803599 (1974-04-01), McLean et al.
patent: 3882495 (1975-05-01), Bolger
patent: 4112419 (1978-09-01), Kinoshita et al.
patent: 4287579 (1981-09-01), Inoue et al.

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