AUTOMATIC CASH TRANSACTION DEVICE AND METHOD FOR MANAGING RESERVE SUPPLY OF MONEY

摘要

PROBLEM TO BE SOLVED: To provide an automatic transaction device and a method for managing a reserve supply of money which can calculate an appropriate reserve supply of money.SOLUTION: The automatic transaction device includes: a storage unit which stores a current amount management table for storing a current value of an existing bank bill amount, which increases or decreases as a result of a money receipt/payment transaction, and a minimum value of the existing bank bill amount, for each kind of bank bills, and a transaction information management table for storing payment transaction information and receipt transaction information including user's identification information and identification information of a received/paid bank bill, for each transaction; and a bank bill reading unit which makes the receipt transaction information or the payment transaction information stored by the transaction information management table at the time of money receipt/payment transaction in addition to updating the current amount management table, identifies a transaction in which the same user successively pays money by using the same bank bill received from the device within a prescribed time after the payment transaction by comparing the user's identification information and the identification information of the bank bill contained in the receipt transaction information and the payment transaction information; and adds the number of bank bills received in the identified transaction to the minimum value so as to correct the minimum value stored by the current amount management table.