Traffic signal control system employing universal co-ordinated time (UTC) of GPS as time base
First Claim
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1. A traffic signal control system employing universal coordinated time (UTC) of OPS as time base comprising:
- a core system for receiving data of GPS, and to include longitude and latitude data and to convert information to local time as a common time basis for the traffic signal control system;
a basic input/output system including a manual control device, manual data input/output device, and a means of calculating rectified phase of a light signal switching;
a selective secondary system including (a) a diode light source uninterrupted system, (b) a fine tune system, and (c) beehive wireless telephone system used as a non-synchronized batch type loading wireless re-new setting system to form a complete disperse system control system;
wherein the manual control device of the basic input/output system is a relay, the manual data input/output device is a box containing IR receiving and transmitting device which is set by portable computer following an interface, the means of calculating rectified phase is added with a new rectified phase for light signal switching control parameter so that traffic signals synchronize at the same time, the beehive wireless telephone system divides 24 hour of a day into a plurality of interval, each interval being 10-15 minutes as a basis, including ⅔
being communication time interval and ⅓
being free interval.
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Abstract
A traffic signal control system employing universal coordinated time of GPS as time base. The control system includes a core system for receiving Universal Coordinated Time (UTC) data of GPS and incorporating longitude and latitude data so as to convert the data to local time. This time is used as common time base for all traffic signal system. The control system further comprises a basic input/output system and a selective secondary system. The present system is a high stability disperse type traffic signal control system.
15 Citations
1 Claim
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1. A traffic signal control system employing universal coordinated time (UTC) of OPS as time base comprising:
- a core system for receiving data of GPS, and to include longitude and latitude data and to convert information to local time as a common time basis for the traffic signal control system;
a basic input/output system including a manual control device, manual data input/output device, and a means of calculating rectified phase of a light signal switching;
a selective secondary system including (a) a diode light source uninterrupted system, (b) a fine tune system, and (c) beehive wireless telephone system used as a non-synchronized batch type loading wireless re-new setting system to form a complete disperse system control system;
wherein the manual control device of the basic input/output system is a relay, the manual data input/output device is a box containing IR receiving and transmitting device which is set by portable computer following an interface, the means of calculating rectified phase is added with a new rectified phase for light signal switching control parameter so that traffic signals synchronize at the same time, the beehive wireless telephone system divides 24 hour of a day into a plurality of interval, each interval being 10-15 minutes as a basis, including ⅔
being communication time interval and ⅓
being free interval.
- a core system for receiving data of GPS, and to include longitude and latitude data and to convert information to local time as a common time basis for the traffic signal control system;
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Current AssigneeChun Hao Thao, Szu Chin Chang
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Original AssigneeChun Hao Thao, Szu Chin Chang
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InventorsThao, Chun Hao, Chang, Szu Chin
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Primary Examiner(s)SWARTHOUT, BRENT
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Application NumberUS10/156,128Publication NumberTime in Patent Office972 DaysField of Search340/907, 340/908, 340/909, 340/910, 340/911, 340/913, 340/917, 340/924, 340/931, 368/47, 701/117US Class Current340/907CPC Class CodesG08G 1/082 Controlling the time betwee...
