| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a vehicle security system which is made to surely prevent vehicle theft, theft from a vehicle, etc. from occurring. <P>SOLUTION: The vehicle security system having a radio wave transmission means (6) installed at outside of the vehicle and an onboard radio terminal (5) equipped in the vehicle is made to sense the vehicle theft and the theft from the vehicle, etc. based on the received electric field strength level when the onboard radio terminal (5) receiving a radio wave emitted by the radio wave transmitting means (6). <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
