To provide a parking log management system for discounting the parking fee of a shopping customer without using a parking ticket.
In a payment machine 11, when a shopping customer inputs a number printed on a free ticket together with a parking number specifying a parking space where the shopping customer himself or herself has parked from an input part, a control part accepts this (S12), and the control part determines whether or not a number preliminarily transmitted from the communication part of a free ticket issuing machine is matched with the input number (S13), and when those numbers are matched (S13: YES), the control part interprets that a necessary fee has been paid, and releases the lock of a lock device 12 by using a lock release section 114 (S14).
Morishita Hachiro
Hiroyuki Yoshida