| 摘要 |
PURPOSE: A data carrier system is provided to allow communication of operational information without carrying of an IC card. CONSTITUTION: A data carrier system is comprised of a vehicle-side controller(12) mounted at a vehicle(11), keys(19A) and(19B), and an R/W device(31) installed in an office(29). A transponder(20) is built into each of the keys(19A) and (19B). In this structure, after operational data has been transmitted from the vehicle-side controller(12) and written in a nonvolatile memory of the transponder(20), when the keys(19A) and (19B) are inserted in the R/W device(31) by a vehicle driver, the R/W device(31) reads the operational data from the transponder(20) and gives the same to a personal computer(30). Accordingly, an inconvenience of the vehicle driver carrying an IC card for recording operational data is removed.
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