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Traffic control system failure monitoring

  • US 5,327,123 A
  • Filed: 04/23/1992
  • Issued: 07/05/1994
  • Est. Priority Date: 04/23/1992
  • Status: Expired due to Fees
First Claim
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1. In a traffic control system for use at a roadway intersection, the system including traffic control lights, a light flasher means for effecting light flashing, relay means for electrical coupling, and a plurality of load switches electrically coupled with said lights via said relay means to which said light flasher means is connected, said load switches having inputs, and a controller connected with said load switches for controlling normal operation of said lights and flashing of one or more of said lights by said light flasher means in the event of a system malfunction, the combination comprisinga) a microprocessor operatively connected with the said load switches, said light flasher means, and said relay means to monitor the system for detecting a malfunction event, for recording the detected malfunction event, and for transmitting the detected malfunction event to another location,b) and verification means at said other location fori) receiving said transmitted malfunction detection,ii) verifying said event, andiii) initiating malfunction corrective action,c) whereby said corrective action in said system may be initiated without removing control by the controller of said operation of the traffic control lights at said intersection.

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