Flow line counter incorporating programmed reversal circuitry

Details Flow line counter incorporating programmed reversal circuitry Flow line counter incorporating programmed reversal circuitry

1976-09-13

1978-03-28

Thesz, Joseph M.

Registers

Platform operated

Platform actuated traffic counters

235 92PK, 235 92PB, 235 92R, G06M 700, G06M 314

Patent

active

040816613

ABSTRACT:
For counting objects moving along a line of flow in a forward or reverse direction, a system utilizes upstream and downstream sensors and a logic subsystem to provide pulse signals to a counter. The logic subsystem produces an upcount or downcount signal only after a sequence of system states is consecutively achieved. Before a count signal is produced an intervening state-confirming signal is required. When such confirming signal is followed by a count-producing signal the logic subsystem automatically resets to a reverse flow condition. Thus, neither vibrations nor reversal of object flow at any point will cause a false count.

REFERENCES:
patent: 3482132 (1969-12-01), Emde
patent: 3740532 (1973-06-01), Esch
patent: 3793508 (1974-02-01), Maggi
patent: 3811648 (1974-05-01), Ream et al.
patent: 3982107 (1976-09-01), Butler

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