| 摘要 |
PURPOSE:To prevent a theft from occurring before it happens, by judging that a car is at being stolen when numbers other than code numbers are inputted into a keyboard as many as more than the specified times, while transmitting a burglar signal to a portable machine from a car-mounted machine. CONSTITUTION:A door lock releasing keyboard switch 10 is connected to a control part 12. And, when the specified door releasing code number is inputted by this keyboard switch 10, the control part 12 operates a driver 14, operating an actuator 16, and releases a door lock. The control part 12 comprises a burglar detecting device 18 detecting a car being stolen when numbers other than the code numbers are inputted into the keyboard switch 10 as many as the specified times. This control part 12 is connected to a car-mounted side transmitter 22 having an antenna 20. When the burglar detecting device 19 detects a theft, the control part 12 operates the transmitter 22, transmitting a burglar signal. |
