Cellular based traffic sensor system
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United States of America Patent
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-
Nov 7, 1995
Grant Date -
N/A
app pub date -
Mar 5, 1993
filing date -
Mar 5, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and apparatus for providing vehicular traffic information using presently existing cellular telephone system technology. Traffic sensors monitor the control and voice channel transmissions of cellular units within a cellular telephone system. Data from these transmissions is extracted and analyzed according to a statistical model and derived vehicle geolocating information to generate vehicular traffic information that is transmitted to a central control center. By combining the information from all of the traffic sensors and each individual cell within a cellular telephone system, a picture of the traffic conditions existing along major thoroughfares may be determined.
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