基于单片机的全自动洗衣机控制系统设计-论文.doc

基于单片机的全自动洗衣机控制系统设计 摘? 要 Design of control system of automatic washing machine based on the microcontroller Abstract With the rapid development of digital technology, washing machine has become indispensable household appliances. Therefore, the design of the control system of automatic washing machine based on single chip microcomputer. This system realizes 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 supply circuit, SCM control system and the external hardware three modules. Through the MCU control, external hardware with user input parameters, washing machine according to the users choice for operation. This system downloading the program to AT89S52 microcontroller, to achieve the basic functions of automatic washing machine washing, rinsing, drainage. So, dehydration and other various functional operation does not need manual. And can choose the washing way to choose the time, can also choose the washing strength etc.. The controller usually provided with a strong, the weak wash wash two kinds of washing procedures, for different clothing can provide user selection. Design and implementation of the various washing function, can satisfy the basic washing the requirements of the modern family, has a certain practicality. Key Words: Singlechip 89S52; washing; full automatic washing machine; controll 目 录 摘? 要 I Abstract III 第1章 绪论 1 1.1课题的目的和意义 1 1.2洗衣机的发展全景及待解决的问题 1 1.3课题设计任务与要求 3 第2章 全自动洗衣机的设计方案 5 2.1系统方案选择 5 2.2具体设计方案 7 2.2.1按键 7 2.2.2洗衣机自检 7 2.2.3洗衣程序 8 2.2.4显示 8 2.3控制系统的功能 8 第3章 系统硬件设计 9 3.1系统硬件总体设计 9 3.2各单元电路设计 15 3.2.1电源电路 15 3.2.2控制电路 15 3.2.3检测电路 17 3.2.4执行电路 17 3.2.5显示电路 19 3.2.6蜂鸣器报警电路 20 3.3电路设计及本章小结 21 第四章 系统软件设计 23 4.1软件主程序设计 23 4.2软件子程序设计 23 4.2.1洗衣程序设计 27 4.2.2洗涤程序的设计 27 4.2.3漂洗程序的设计 28 4.2.4脱水程序的设计 28 第五章 系统调试 31 5.1硬件调试 31 5.2软件调试 32 5.3整体调试 33 总 结 37 参考文献 39 致 谢 41 附 录 43  第1章 绪论 1.1课题的