| 摘要 |
An electronic identity device is proposed for securing to equipment, especially a vehicle, and has anti-tampering protection. The device is intended to prevent the identity of a vehicle being changed unknowingly. The device comprises at least a control processor (10) having a memory containing accessible data unique to the equipment (for example a vehicle chassis number and/or engine number), and preferably a slave processor (20). The device also comprises means (1, 7, 8) generating a security signal and means for detecting any lack of integrity of the security signal to generate a tamper warning signal. The security signal is generated repeatedly irrespective of whether the vehicle is in operation. More particularly, the security signal is transmitted over a communication link (18) in the form of fibre optic cabling which is adhered to the equipment. Any attempt to remove the electronic device or tamper with the cabling will corrupt the security signal and therefore generate a tamper warning signal. <IMAGE> |
