| 摘要 |
<p>A system for immobilising a stolen vehicle comprises a unit (10) for mounting in a vehicle and first and second remote control devices (11, 21). The vehicle unit (10) comprises a receiver (13) for receiving wireless control signals directly from the remote control devices (11, 21) and means (15) for immobilising the vehicle in response to predetermined control signals from either remote control device (11, 21). The first remote control device (11) is arranged to transmit a predetermined control signal which is substantially unique to the receiver (13) and the second remote control device (21) comprises means (16) for selecting the predetermined control signal to be transmitted. In use, the first remote control device (11) is kept by the vehicle's owner, so that the vehicle can be immobilised each time it is left unattended. The second remote control (21) device is kept by the police and in the event of a car theft, the police merely have to identify the vehicle, select an appropriate control signal and then transmit the control signal, either from a pursuit vehicle or from the roadside, to immobilise the vehicle.</p> |
