AN AUTOMOTIVE TELEMETRY SYSTEM

THE DESIGN, DEVELOPMENT AND TESTING OF A TELEMETRY SYSTEM FOR TRANSMITTING DATA FROM A MOVING TEST VEHICLE TO A NEARBY GROUND SITE ARE DESCRIBED. THE TRANSMITTING-RECEIVING COMBINATION WAS DESIGNED TO OPERATE IN THE 240-260 MHZ. BAND AND TO EITHER TRANSMIT OR RECEIVE 21 CHANNELS OF DATA SIMULTANEOUSLY; THUS, DATA CAN EITHER BE TRANSMITTED FROM A VEHICLE OR RECEIVED IN THE VEHICLE. THIS SYSTEM WAS EXHAUSTIVELY TESTED UNDER FULL-SCALE CONDITIONS AT THE FUTURE LOCATION OF THE OHIO HIGHWAY TRANSPORTATION RESEARCH CENTER, WHERE DATA WERE TRANSMITTED FROM MOVING VEHICLE TO A FIXED GROUND STATION (AND VICE VERSA) FOR DISTANCES RANGING FROM 0.2-9 MILES. EXCELLENT RESULTS WERE OBTAINED WITH THE SIGNAL-TO-NOISE RATIOS OF THE RECEIVED SIGNALS ALWAYS BEING GREATER THAN 20 DB AS LONG AS AN UNOBSTRUCTED LINE-OF-SIGHT PROPAGATION PATH EXISTED BETWEEN THE TRANSMITTER-RECEIVER COMBINATION. IT WAS CONCLUDED THAT THE SYSTEM WAS SATISFACTORILY DESIGNED AND IS FULLY READY FOR OPERATIONAL USE. /AUTHOR/

• Supplemental Notes:
  • 14160 (0) (EES-276), NO 26
• Corporate Authors:

  Ohio State University, Columbus

  190 North Oval Drive
  Columbus, OH  United States  43210

  Ohio Department of Highways

  Columbus, OH  United States  43210

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Ventola
  • Moran
  • Olson
• Publication Date: 0

Subject/Index Terms

• TRT Terms: Automation; Data communications; Interference; Telemetry; Testing; Vehicles
• Subject Areas: Highways; Operations and Traffic Management; Vehicles and Equipment;

Filing Info

• Accession Number: 00224992
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Files: TRIS, USDOT
• Created Date: Aug 8 1971 12:00AM