| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an in-vehicle receiver capable of allowing a user to use a vehicle control system without anxiety while suppressing cost as much as possible. <P>SOLUTION: When it is determined that signal intensity (RSSI) is equal to or higher than a predetermined reference level based on an RSSI signal inputted from an AMP (S110;YES) during the stop of an engine in a vehicle, and the authentication of an ID code included in serial data inputted from a CMP is not successfully performed (S120;NO), a state flag Fa expressing a communication environmental state in the parking place of an object vehicle is set to "1" expressing the existence of interfering wave (S140) and also position information stored in a RAM is stored as interfering wave information expressing the position of the interfering wave (S150). Then, when the state flag Fa is "1" (S165;YES) in the case that the authentication of the ID code is successfully performed (S120;YES), an alarm is issued (S170). <P>COPYRIGHT: (C)2009,JPO&INPIT |
