| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a vehicle security control device which carries out locking/unlocking control of a locking device, based on the intensity of a signal transmitted from a transmitter 1 and received by a receiver 7, wherein the control device carries out stable unlocking control in an early stage if it is determined that the intensity of the received signal becomes weak due to some reason even if the owner of the transmitter 1 approaches a vehicle. <P>SOLUTION: In the receiver 7, if the measured intensity T of the received signal is increased to a measuring threshold value Y (160) or more twice, it is regarded that an additional value 30 is added to first and second stored values T1, T2, which enables early-stage stable unlocking control of the control device. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
