To solve the following problem: there are no countermeasures against locking of a vehicle due to rewriting of software of the vehicle by an outsider via unauthentic access during communication between the vehicle and the vehicle owner outside the vehicle, under the circumstances that a keyless entry system of locking/unlocking a vehicle door is carried out via software without using a door key or communication from the vehicle on the Internet etc. become widespread.
There is provided a vehicle theft preventing system according to which an information item necessary for locking/unlocking the vehicle and an information item necessary for communication with the outside are entrusted from a transceiver 104 installed in the vehicle 101 to an outside control device 106 arranged outside the vehicle, and the information items are deleted from the vehicle. Thus communication from the outside to the vehicle 101 can be prevented.
SAWA EICHI
Tomoyasu Sakaguchi
Hiroki Naito
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