Traffic signal control system

Details Traffic signal control system Traffic signal control system

1989-09-20

1991-12-17

Lall, Parshotam S.

Boots, shoes, and leggings

340931, B60Q 900, G06F 1548

Patent

active

050738666

ABSTRACT:
The control signals and associated output signals of traffic signal switching circuits are continuously monitored by a microprocessor. In the event of a microprocessor-detected failure of a switching circuit, a microprocessor controlled back-up switching circuit is available to maintain normal operation of the signal.

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