VEHICLE NAVIGATION AND FLEET MANAGEMENT USING DIFFERENTIAL GPS. IN: CONFERENCE RECORD OF PAPERS PRESENTED AT THE FIRST VEHICLE NAVIGATION AND INFORMATION SYSTEMS CONFERENCE, TORONTO, ONTARIO, CANADA - SEPTEMBER 11-13, 1989

This paper describes the implementation of an in-vehicle navigation and location system coupled, via a bidirectional UHF data communications link, with a base monitoring and dispatch system. The structure of the in-vehicle system, using deadreckoning and GPS for navigation, is presented along with dynamic test results showing the system performance with and without deadreckoning, and also the system improvements using GPS navigation in the differential mode. Digital mapping and vehicle guidance are discussed and shown as they appear on the in-vehicle color LCD. The structure of the base monitoring and dispatch system is presented showing fleet management techniques and dispatch procedures for both commercial and military applications. Also discussed are the implementation of the digital map data base stored in CD ROM, differential GPS, and the ability of the system to operate in various reference modes such as street address, latitude and longitude, and MGRS. The UHF bidirectional data link is discussed showing its operation and usage. Performance of the data link relative to frequency and data transmission rate is discussed and results of several installations in the US and in Europe are presented. Two commercial applications and one military application are presented for discussion. These applications show the efficiency and effectiveness of real time fleet management systems which improve the ability to quickly and accurately locate vehicles, select and transmit dispatch information, and monitor vehicle progress and performance. This paper covers new approaches to in-vehicle displays (LCD), vehicle tracking using differential GPS, transportable CD ROM map data bases, and improved UHF data communication links. All system hardware is available for demonstration and observation.

  • Availability:
  • Supplemental Notes:
    • The Conference was sponsored jointly by IEEE , the Vehicular Technology Society, Toronto Chapter of IEEE, the Ontario Ministry of Transportation, and Transport Canada.
  • Corporate Authors:

    Institute of Electrical and Electronics Engineers (IEEE)

    Operations Center, 445 Hoes Lane, P.O. Box 1331
    Piscataway, NJ  United States  08855-1331
  • Authors:
    • Hunter, T
  • Publication Date: 1989-9

Media Info

  • Pagination: p. 366

Subject/Index Terms

Filing Info

  • Accession Number: 00610934
  • Record Type: Publication
  • ISBN: 0-9692316-2-8
  • Files: TRIS
  • Created Date: Jul 31 1991 12:00AM