Cash payment protocol conversion system for automatic vending machine

Abstract

The invention relates to the field of vending machines, in particular to a cash payment protocol conversion system for an automatic vending machine. The conversion system comprises cash payment equipment, a protocol conversion module and a main control board, wherein the main control board is electrically connected with the protocol conversion module, and the protocol conversion module is in communication connection with the cash payment equipment; and the protocol conversion module consists of a singlechip, an MDB drive level conversion circuit and a serial port level conversion circuit, andthe MDB drive level conversion circuit and the serial port level conversion circuit are electrically connected with the singlechip. The system solves the problem that a serial port of the main controlboard of the vending machine cannot directly communicate with mainstream cash payment equipment in the market; and through the protocol conversion module, the main control board can communicate withmainstream cash payment equipment based on MDB protocol in the vending machine industry through the serial port to complete the cash payment function.

Description

technical field [0001] The invention relates to the field of vending machines, in particular to a cash payment protocol conversion system for automatic vending machines. Background technique [0002] With the improvement of science and technology and living standards, people pay more and more attention to the convenience of purchasing goods, and the vending machine industry is favored by people because the deployment of vending machine terminals can not be restricted by time, place and other conditions. . In order to meet the consumption needs of various groups of people, vending machines generally have a variety of payment methods, mainly cash payment methods and electronic payment methods. The cash payment method involves a variety of payment devices, such as banknote machines, coin acceptors, coin changers, card readers, and the like. Most of these devices currently on the market use the MDB communication protocol, and neither the hardware interface nor the software pro...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problems described in the background technology, the present invention provides a cash payment protocol conversion system for automatic vending machines, which solves the problem that the serial port of the main control board of the vending machine cannot directly communicate with mainstream cash payment devices on the market. Module, the main control board can communicate with the mainstream cash payment device based on the MDB protocol in the vending machine industry through the serial port to complete the cash payment function

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