Patent ID: 6226572
Filing Date: 2001-05-01
Classification: E02F,G01S,G05D,G08G

Abstract:
A vehicle monitor comprising a plurality of vehicles each having vehicle position measurement means for measuring an own vehicle position and a monitoring station which transmits command data to instruct traveling to the plurality of vehicles, characterized in that:first transmission/reception means for transmitting/receiving at least the command data between the monitoring station and the plurality of vehicles via a first communication system which enables wireless communication over distances between the monitoring station and the plurality of vehicles is provided in the monitoring station and the plurality of vehicles respectively,second transmission/reception means for transmitting/receiving position data measured by the vehicle position measurement means between the plurality of vehicles via a second communication system which enables wireless communication over distances between the plurality of vehicles and enables faster data transmission/reception than the first communication system is provided in the plurality of vehicles respectively, andthe respective vehicles judge the approach of other vehicles by transmitting the position data between the plurality of vehicles via the second transmission/reception means provided in the plurality of vehicles respectively, so that mutual position relationships between the plurality of vehicles are monitored.