单片机控制的全自动洗衣机毕业论文资料.docVIP

专科毕业论文(设计) 题 目： 单片机控制的全自动洗衣机 学 院： 应用技术学院 专 业： 电气自动化 姓 名： 于敬磊 指导教师： 战 胜 2013 年 6 月 5 日 单片机控制的全自动洗衣机 摘 要 随着数字技术的快速发展，数字技术被广泛应用于智能控制的领域中。单片机以其体积小、功能全、价格低廉、开发方便的优势得到了许多电子系统设计者的青睐。它适合于实时控制，可构成工业控制器、智能仪表、智能电器、智能武器装置以及通用测控单元等。 本文以AT89C51单片机为核心设计了全自动洗衣机控制系统，本系统实现了对洗衣机整个洗衣过程的控制，包括用户参数输入、洗衣、脱水和结束报警四个阶段。控制系统主要由电源电路、单片机控制系统和外部硬件电路三大模块组成。电源电路为单片机主控系统提供5v的直流电压；单片机主控系统负责控制洗衣机的工作过程，主要由AT89C51单片机、按键、蜂鸣器、LED指示灯、LM324电压比较器、NPN型差分放大器组成；外部硬件电路有继电器、三极管、LED灯组成。 本系统的电路并不复杂，给AT89C51单片机载入软件程序后，能够实现全自动洗衣机的基本功能。 关键词： AT89C51；用户参数；继电器；控制系统；电压放大器、比较器 Abstract With the rapid development of digital technology, digital technology has been widely applied in the field of intelligent control. Its small size, complete functions, low price, convenient development advantage by many electronic system designers favor. It is suitable for real-time control, can form industrial controller, intelligent instrument, intelligent appliances, intelligent weapon device and universal measurement and control unit. This paper takes AT89C51 microcontroller as the core design of the automatic washing machine control system, this system has realized the control of the washing machine and the whole washing process, including user input parameters, washing, dehydration and end alarm four stages. The control system is mainly composed of a power circuit, SCM control system and the external hardware circuit is composed of three modules. The power supply circuit provides DC Voltage 5V for single-chip microcomputer control system; single-chip microcomputer control system responsible for the process control of washing machine, mainly by the AT89C51 microcontroller, buttons, buzzer, LED lights, LM324 voltage comparator, NPN difference amplifier; external hardware circuit with a relay, a triode, LED lamp. The circuit of this system is not complicated, downloading the program to AT89C51 microcontroller, to achieve the basic functions of automatic