OVERPAYMENT PREVENTING METHOD FOR AUTOMATIC CASH PAYMENT MACHINE

摘要

PURPOSE:To prevent the payment of an amount of money exceeding the actual balance by constituting the title machine so that when the previous data ledger data whose balance is not updated yet has been received from a host computer, the balance of the previous day ledger data is updated by untransmitted transaction data by the automatic cash payment machine itself immediately after that and the correct balance is held. CONSTITUTION:On that day, the previous day ledger data of the balance of Yen one million in A, B and C accounts of a deposit balance ledger file 18 is stored in a previous day ledger file 14 from a host computer 17. In this state, payment transactions of Yen one hundred thousand and two hundred thousand are generated in the A and B accounts and a transaction data file 15 is generated, but even if a fault is generated at the time of transmitting its data and it cannot be sent to the host computer 17 and the A, B and C accounts are sent as the previous data ledger data in a state that the balance remains Yen one million, its balances become correct values of Yen nine hundred thousand, eight hundred thousand and one million, respectively by updating the balance of the previous data ledger data of the previous data ledger file 14 by the A and B accounts of untransmitted transaction data, and an overpayment is prevented.