| 摘要 |
PROBLEM TO BE SOLVED: To provide a smart system which saves electricity consumption in both of a portable device and a control system.SOLUTION: A portable device 3, mechanically comprising a main body and a mechanical key, wirelessly transmits a stop signal to an on-vehicle system 2 when a user removes the mechanical key from the main body, and then, stops a LF reception part 12 and a RF transmission part 13. Upon wirelessly receiving the stop signal from the portable device 3, the on-vehicle system stops a LF transmission part 5. Accordingly, the user can save electricity consumption in both of the portable device 3 and the on-vehicle system 2 by simply removing the mechanical key of the portable device 3 from the main body. |
