| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an in-vehicle device for dedicated narrow area communication that enables reliable use of an IC card to be used, even if the in-vehicle device is adapted to multiple applications. <P>SOLUTION: The in-vehicle device for dedicated narrow area communication, which is mounted on a vehicle, adapted to a plurality of applications, and designed to transmit and receive a signal to and from a roadside device 2 installed in the vicinity of a vehicle travel road, comprises an IC card interface 6 for reading in data in each IC card 12 prepared for each application for communication with the roadside device 2, a count part 21a for counting the number of insertions of each IC card 12 into the IC card interface 6, and an EEPROM 22 for storing the count value by the count part 21a. <P>COPYRIGHT: (C)2003,JPO |
