| 摘要 |
A passive keyless entry device is constructed by a car mounting device (1) mounted to an automobile, a portable device (2) and transmitter-receivers (3) for monitoring a tire pneumatic pressure. The car mounting device has a low frequency signal transmitting section (5) for transmitting a request signal to the portable device (2) and the transmitter-receivers (3) for monitoring the tire pneumatic pressure, a receiving section (4) for a keyless entry for receiving an answer signal responsive to the request signal from the portable device, a receiving section (6) for monitoring the tire pneumatic pressure for receiving the answer signal responsive to the request signal from the transmitter-receivers (3) for monitoring the tire pneumatic pressure, and a controller (9) for forming the request signal and controlling the operation of a door lock mechanism (12) in response to the answer signal and displaying tire pneumatic pressure information. <IMAGE> |
