| 摘要 |
<p>PURPOSE:To instruct a plurality of locking and unlocking devices to lock or unlock a door by operation or one switching means and detect mislocking or misunlocking due to misoperation. CONSTITUTION:A switch is provided at a key top to transmit locking or unlocking signals to a transmitter by an operation. A receiver 10 is provided with PF 12 receiving the locking and unlocking signals from the transmitter, a microcomputer 14 instructing locking or unlocking to a door lock device or a trank lock device when a code is input from the RF 12, a comparator 18 comparing the RSSI voltage from the RF 12 with the reference voltage of intersection 17. After the door has been unlocked by the switching motion, the switch is further operated for a specified time to open the trank. After the door has been unlocked the reference voltage is lowered to reduce the receiving sensibility of locking and unlocking signals.</p> |
