| 摘要 |
PURPOSE: An antitheft device for a vehicle is provided to generate a first alarm when a non-authorized driver gets into the vehicle, to generate an alarm and lock a gear when the non-authorized driver starts the vehicle and to generate a third alarm and transmit a wireless call signal to an owner. CONSTITUTION: On releasing a vehicle door in an abnormal way, a supersonic sensor(10) senses if there is a non-authorized driver. In case of theft trial, a CPU(central processing unit)(20) generates a first alarm through an alarm unit(30). In spite of the alarm, the non-authorized driver tries to start a vehicle and the CPU locks a gear by a gear controller(40) and generates a second alarm. Continuously, the CPU transmits a wireless calling signal to an owner and generates a third alarm. |
