BILLING SYSTEM, BILLING DEVICE, BILLING METHOD, AND PROGRAM

摘要

In the present invention, an identification information acquisition unit (23) of an area billing device (20) acquires identification information of a vehicle that exists in a non-billing area from a parking lot billing device (30). Then, a billing exemption processing unit (24), by treating a predetermined period from when the identification information acquisition unit (23) acquired the identification information as being exempt from billing processing, assesses, without error, whether or not there has been an entry to the non-billing area.