AT89C51单片机的自动贩卖机控制系统研究+电路图

摘要: 随着社会与科技的快速发展，自助设备的广泛使用正逐渐改变人们的生活方式，自动贩卖机作为一种方便快捷的自助购物设备在各种公共场合得到越来越广泛的应用。本文在对自动贩卖机装置的控制系统原理及实现方式研究基础上，以 AT89C51 单片机为核心处理单元，以 LCD1602 为显示模块，以独立按键模拟货物选择端，选择 LED 和继电器模拟货物输出，结合硬件电路设计与软件编程技术，采用集中控制方式，给出一种自动贩卖机控制系统的实现方案，并对方案进行了仿真验证。实验结果表明，本方案简单易行，功能扩展性强。67576

毕业论文关键词：自动贩卖机，AT89C51，Proteus 仿真

Abstract:With the rapid development of the society, science and technology, the widespread use of self-service equipment is gradually changing people's way of life, vending machines as a convenient self-help shopping facilities in various public places to get more and more widely used. The in the vending machine control system and the realization of the principle of mode research based on, AT89C51 single-chip microcomputer as the core processing unit, LCD1602 to display module, with independent keys simulation goods selection end, led and relay selection to simulate goods output, combined with the hardware circuit design and software programming technology, the centralized control mode are a vending machine control system's implementation scheme, and the scheme is validated by simulation. Experimental results show that the scheme is simple and easy, and the function of the expansion is strong.

Keywords: Vending machine , AT89C51, Proteus simulation

1 绪论… 4

1.1 自动贩卖机的发展前景 4

1.2 自动贩卖机的工作原理 4

2 系统硬件介绍… 5

2.1 中央控制元件 8 9 C 5 1 简介… 5

2.2 LCD 显示系统… 9

2.2.1 LCD显示 9

2.2.2 LCD1602 的指令说明… 10

2.2.3 LCD1602 的基本时序操作… 12

2 . 3 按键选择… 1 3

3 投币系统及其流程图… 1 3

3.1 货物选择系统及其流程图 1 6

3.2 出货系统及其流程图 1 6

3.3 找钱系统及其流程图 1 7

4 系统软件设计… 1 8

5 设计仿真… 1 9

5 . 1 P r o t e u s 简介… 1 9

5.2 仿真电路… 2 0 AT89C51单片机的自动贩卖机控制系统研究+电路图:http://www.youerw.com/zidonghua/lunwen_75816.html