Automatic counting system for passages

Details Automatic counting system for passages Automatic counting system for passages

G - Physics

06

M

349/33, 340/124.

G06M 1/27 (2006.01) G01S 15/04 (2006.01) G06M 1/10 (2006.01) G06M 7/00 (2006.01) G07C 9/00 (2006.01)

Patent

CA 1205175

AUTOMATIC COUNTING SYSTEM FOR PASSAGES ABSTRACT OF THE DISCLOSURE The invention is particularly useful for counting the passengers moving into and out of a common carrier vehicle such as a motor bus. Three ultrasonic ranging stations are provided to determine the presence and ab- sence of passengers at three successive positions at the bus entrance. The three positions may correspond respec- tively to three steps through the entrance. Sequence logic circuitry is included for analyzing the sequence of detection of passengers at the three different rang- ing stations to establish a count of the number of pas- sengers entering or leaving.

448535

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