全自动洗衣机控制系统设计论文

智能全自动洗衣机控制系统设计

摘 要

电动控制在洗衣机是较早出现的自动控制类家用电器，其产品类型还属于传统的机械产品，是自动控制的初级阶段。随着计算机的及微电子技术的发展，自动控制系统正在逐步实现硬件化。电动控制洗衣机将逐步退出家电舞台，而在现代的社会，智能全自动洗衣机开始进入各个家庭，可编程控制器(PLC)是以计算机技术为核心的通用自动化控制装置,它的功能性强,可靠性高,编程简单,使用方便,体积小巧,近年来在工业生产中得到广泛的应用,被誉为当代工业自动化主要支柱之一。在现代的社会，智能全自动洗衣机进入各个家庭。

本文介绍了利用三菱FX2N系列PLC对智能全自动洗衣机控制系统总体控制,阐述了控制方案。实现智能全自动洗衣机控制系统总体控制有多种，可以采用早期的模拟电路、数字电路或模数混合电路。近年来随着科技的飞速发展，单片机、PLC的应用不断地走向深入，同时带动传统的控制检测技术的不断更新。本文采用日本三菱公司生产的FX2N-48MR型PLC 作为核心控制器进行智能全自动洗衣机控制系统的设计，并且设计出了系统结构图、程序指令、梯形图以及输入输出端子的分配方案。同时根据智能全自动洗衣机控制系统总体控制要求和特点,确定PLC 的输入输出分配,并进行现场调试

关键字：PLC ；智能全自动洗衣机控制系统； PLC程序设计。

Abstract

Electric control

in

the washing

machine is automatic

control

of household appliances,earlier, the type of products still belongs to the traditional mechanical products, is the primary stage of automatic control. With technology, the

the development automatic

of

computer and system is

microelectronics to

achieve the machine will

control

hardware gradually. Electric appliance control washing

gradually withdraw from the stage, but in the modern society, intelligent automatic washing machine began to enter each family, the programmable controller (PLC) is the universal automation computer technology as the core of the control device, its function is strong, high reliability, convenient use, Simple programming, small volume, in recent years widely used in industrial production, is regarded as one of the main pillars of modern industrial

automation. In

modern

society, intelligent

automatic washing machine in every family.

This paper introduces the intelligent control system of automatic washing machine control using MITSUBISHI FX2N series PLC, and expounds the control scheme. To realize the intelligent control system has a variety of automatic

washing machine control, can

be

used

early

analog

circuits, digital circuits or analog digital hybrid circuit. In recent years, with the rapid development of science and technology, the application of MCU, PLC continuously deepening, and lead the traditional control detection technology constantly updated.Design using FX2N-48MR type PLC produced by Mitsubishi Co in Japan as the core controller of intelligent automatic washing machine control system, and designed the system structure diagram, program instructions, ladder diagram and the distribution of input and output terminals. At the same time according to the requirements and characteristics of the intelligent control system of automatic washing machine control,determine the PLC input and output

3

distribution, and on-site commissioning.

Keywords: PLC; intelligent

machine; PLC programming.

control system of automatic washing

目录

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1 引言 ............................................................. 6 2 全自动洗衣机控制系统总体控制方案确定 ............................ 12

2.1 总体控制方案确定 ........................................... 14

2.1.1 控制系统的比较 ....................................... 14 2.2.2 洗衣机的PLC控制系统概述 ............................. 16

3 全自动洗衣机的基本结构 .......................................... 18

3.1 全自动洗衣机的原理和构造 ................................... 18 3.2 洗涤脱水系统 ............................................... 20 3.3 排水和进水系统 ............................................. 21 3.4 电动机及传动系统 ........................................... 21 4 电气控制系统 .................................................... 22 4.1 控制系统结构 ............................................... 22 4.2 控制系统原理 ............................................... 23 4.3 检测电路系统 ............................................... 24 5 主要器件的选择 .................................................. 25

5.1 电动机的选择 ............................................... 25 5.2 传感器的选择 ............................................... 25 5.3 可编程控制器外部设计 ....................................... 28 6 软件设计 ........................................................ 31

6.1 系统的顺序功能图设计 ....................................... 31 6.2 全自动洗衣机的控制要求 ..................................... 31 6.3 控制系统顺序功能图 ......................................... 33 6.4 控制系统的梯形图设计 ....................................... 34 6.5 程序语句表 ................................................. 36 设计体会????????????????????????????? 18 7 结束语 .......................................... 错误！未定义书签。 致谢 .............................................................. 41 参考文献 .......................................................... 43

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