RECORDING CONTROL SYSTEM IN AVM SYSTEM

PROBLEM TO BE SOLVED: To reduce the operation errors of the number of unit operation times on the driver of a mobile station and to simplify the unit constitution of a mobile station device by cooperatively operating an AVM operation and sound recording control. SOLUTION: The recording of received sound is controlled by automatically linking it to a switch operation related to AVM such as 'OK' and 'fare travel' switches, for example, in the mobile station operation display unit 2 of an AVM system. A sound recording unit is incorporated into a radio machine 1 and therefore unit constitution is also simplified. A sound recording unit in the radio machine 1 is always in a recording state. An instruction from a dispatcher room is processed in an AVM signal processing part 3 and recording automatically stops by the taxi driver receiving the instruction pushes the 'OK' switch of an operation display unit 2 by following the AVM operation. Then, the vehicle instruction recording just before recording stops can be reproduced for any times until the taxi driver recognizes a passenger requesting the vehicle.