Patent ID: 7151440

Claim:
A wireless vehicle burglar-alarm system comprising: an on-board main unit installed in a car and electrically connected to at least one sensor and at least one alarm in said car, each said sensor being adapted to detect an abnormal status of a predetermined location in said car and to produce an abnormality signal upon detection of an abnormal status of said predetermined location, said on-board main unit being adapted to receive said abnormality signal from each said sensor and to control said at least one alarm to produce an alarm signal upon receive of said abnormality signal; and a wireless communication apparatus installed in said car and electrically connected to said on-board main unit and adapted to receive the broadcast of at least one base station of one wireless communication system and to store the Cell Global Identity of each base station of said wireless communication system; wherein when said on-board main unit is in an alert mode and when one stored Cell Global Identity is disappeared from said wireless communication apparatus and said wireless communication apparatus has the Cell Global Identity of one new base station stored therein, said wireless communication apparatus sends a relocation signal to said on-board main unit, causing said on-board main unit to start said at least one alarm.