The present invention can perform the billing and user authentication at the time of rental start of the rental vehicle, also of rental vehicle used at the end to check whether identical to the rental vehicle at the time of rental start has been certainly return to, to provide a loan return equipment rental vehicle to allow both. and A lock control unit 51 for opening and closing of the lock of the rental vehicle, return confirmation unit 52 in which the accounting unit 50 for billing and user authentication for this user, to confirm the return of the rental vehicle and this or the like is made from the management to the system management section 5 Metropolitan as follows, if done billing process in the billing processing section 50, by opening the lock Womotte lock control unit 51 performs a specified rental vehicle to the user enabling lending rental vehicle, also at the time of return of the rental vehicle, by confirming the rented vehicle unique identification code provided to the rental vehicle Womotte return confirmation unit 52, and to perform a return confirmation of the rental vehicle.BACKGROUND 2
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