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Automatic vehicle monitoringAutomatic vehicle monitoring systems are discussed. In a baseline system for highway applications, each vehicle obtains position information through a Loran-C receiver in rural areas and through a 'signpost' or 'proximity' type sensor in urban areas; the vehicle transmits this information to a central station via a communication link. In an advance system, the vehicle carries a receiver for signals emitted by satellites in the Global Positioning System and uses a satellite-aided communication link to the central station. An advanced railroad car monitoring system uses car-mounted labels and sensors for car identification and cargo status; the information is collected by electronic interrogators mounted along the track and transmitted to a central station. It is concluded that automatic vehicle monitoring systems are technically feasible but not economically feasible unless a large market develops.
Document ID
19770060968
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Bravman, J. S.
(Fairchild Space and Electronics Co. Germantown, Md., United States)
Durrani, S. H.
(NASA Goddard Space Flight Center Greenbelt, Md., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1976
Subject Category
Urban Technology And Transportation
Meeting Information
Meeting: Western Electronic Show and Convention
Location: Los Angeles, CA
Start Date: September 14, 1976
End Date: September 17, 1976
Sponsors: In: Western Electronic Show and Convention
Accession Number
77A43820
Distribution Limits
Public
Copyright
Other

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