| 摘要 |
A method of operating a vehicle with a management system including a processor for controlling the vehicle comprises holding a program in encoded form in a first store and on starting the vehicle decoding the program in accordance with a PIN entered and reading it to processor memory. Further programs held in the first store validate the decoded program, and energise alarms if attempts are made to start the vehicle without a PIN, if the decoded program is invalid or in response to outputs from alarm condition sensors. A forgotten or lost PIN can be given to a user using a processor connected to the telephone system and running a database storing user passwords, telephone numbers, vehicle serial numbers, and status flags; which, when an user dials in and gives his password, prompts entry of the serial number which is used determine the PIN, the user then terminates the call and the processor dials the stored telephone number and repeats the PIN (unless the status flag indicates vehicle stolen in which case the authorities are notified and the call traced). |
