CAR RADIO LISTENING CONDITION CHECK DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a car radio listening condition check device for checking the listening conditions of a car radio including latent listening possible time and the information of an individual boarding on a vehicle. SOLUTION: A boarding detection part 1218 detects the boarding and get-off to/from the vehicle of a driver and a car radio ON/OFF detector 1221 detects the power supply and disconnection of the car radio. A CPU 1211 writes measurement data including the detection time in a RAM 1214. When data for identifying the individual boarding on the vehicle are inputted from an individual data input device through an RS488 interface, the CPU 1211 writes individual boarding data in the RAM 1214 as one of the measurement data. The CPU 1211 detects the broadcasting station during listening of the car radio by using an electronic tuner 1224 for local oscillation detection and writes it in the RAM 1214 as the measurement data. When the fixed time comes, the CPU 1211 sends a series of the measurement data stored in the RAM 1214 through an RS232C interface to a radio communication part and transmits them to a check center.