Communications: electrical – Traffic control indicator
Patent
1997-12-04
1999-11-23
Wu, Daniel J.
Communications: electrical
Traffic control indicator
340902, 340916, 701117, 701301, 455420, G08G 107
Patent
active
059908084
ABSTRACT:
A traffic light remote control system comprising a plurality of traffic lights each situated at a single road intersection and having a green light, a yellow light, and a red light constituting an array of racing lights. Associated therewith is a programmable logic controller connected to each of the traffic lights of the single road intersection and adapted to flash each of the array of racing lights thereof only upon the receipt of an activation signal with an accompanying unique code associated therewith. Also included is a cellular transceiver connected to the programmable logic controller with a modem connected therebetween. The modem and cellular transceiver serve to communicate signals over a unique cellular line with a unique phone number dedicated to the plurality of traffic lights of the single intersection. Next provided is a mobile actuator unit including an activation button for transmitting the activation signal upon the depression thereof and a phone number and code entering mechanism for providing a phone number and associated code. A cellular transceiver is provided for communicating signals over a unique cellular line associated with a unique phone number upon the receipt thereof. Finally, a microcontroller is adapted to transmit the activation signal, a phone number and associated code to the transceiver upon the depression of the activation button.
REFERENCES:
patent: 4443783 (1984-04-01), Mitchell
patent: 5014052 (1991-05-01), Obeck
patent: 5182555 (1993-01-01), Sumner
patent: 5345232 (1994-09-01), Robertson
patent: 5504482 (1996-04-01), Schreder
patent: 5602739 (1997-02-01), Haagenstad et al.
patent: 5745865 (1998-04-01), Rostoker et al.
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