基于Multisim的简易自动售货机控制系统设计与仿真

摘要

In order to improve the convenience and reliability of simple vending machines, this study designed and developed a control system of simple vending machine. According to the characteristics of digital integrated circuit and analog integrated circuit, by use of modular design method, it designed the simulated coins selector module, display module, simulated module of delivering goods and giving change, and improved the circuit ’s readability and portability. Based on the analysis and research of its dynamic characteristics by Multisim plat-form, the circuit simulation model was built up and its function was analyzed. The simulation results were in conformity with experimental results, indicating that the con trol system can accurately and conveniently realize the function of simple vending machine with an efficient and convenient method.%为了提高简易自动售货的便捷性和可靠性，设计开发出一套简易自动售货机控制系统。根据数字集成电路和模拟集成电路的特点，采用模块化设计思路，设计了模拟投币模块、显示模块、模拟出货和找零状态模块，提高了电路的可读性和可移植性。基于Multisim平台对其动态特性进行了分析研究，建立了电路仿真模型，并对其功能进行了仿真分析。仿真结果与实验结果基本一致，所设计的控制系统能准确、便捷的实现简易自动售货机的功能。