基于PLC的自动洗车装置的设计.doc

摘 要 汽车产业的快速发展，将使汽车服务业出现爆炸式的增长。对汽车有一定的保值增值作用的日常护理行业——汽车美容业迎来了专业化、规模化、产业化发展的时机。洗车行业也成为一种新兴行业，发展势头日渐迅猛，可谓商机无限。但是，洗车行业准入门槛低，科技含量极低，大部分洗车行采用人工洗车，洗车设备较为简陋，基本上以高压冲洗为主，极其浪费水资源，污染环境。而少数电脑洗车房，资金投入多，占地面积大，洗车效率低，都相继关门。而自动洗车机则可以有效解决上述问题。它内置三菱FX2N系列PLC控制器，采用先进的传感器技术，自动对需要服务的汽车进行清洗，清洗完毕自动停止刷洗，实现了洗车的自动化控制。 在建设、美化城市、创建现代化大都市的城市发展主题中，追求时尚、效率和环保已成为汽车美容服务行业的重要内容和发展方向。目前，城市落后的人工洗车方式已不能适应现代化城市的市容卫生和行业发展的需求，也不符合企业的规模经营、专业化、规范化的要求，更谈不上行业的可持续发展。要想中国的洗车行业健康有序地发展，要用新的理念、新的思路和新的方法来管理洗车行业，提升行业的形象和竞争力。 全自动（PLC)洗车机，顺应时代的需要应运而生。它的出现是向传统洗车方式的挑战，中国的洗车行业要发展，必须与国际洗车业接轨，缩小与国际先进洗车行业的差距，因此，推广和应用全自动洗车机势在必行。 关键字:PLC 、控制器、汽车 目录 摘要·····························································1 第一章PLC的介绍···············································2 1.1 PLC的起源··················································2 1.2 PLC的发展历程··············································2 1.3 PLC控制系统的设计基本原则··································2 1.4 PLC的功能··················································3 1.5 PLC的特点··················································3 1.6 PLC的应用领域··············································4 第二章自动洗车介绍·············································5 2.1 自动洗车的系统介绍··········································5 2.2 传感器······················································6 第三章课题的程序设计···········································8 3.1 系统程序控制要求············································8 3.2 程序的I/O分配表············································8 3.3 PLC端子接线图···············································9 3.4 状态流程图·················································10 3.5 程序梯形图·················································11 第四章调试·运行···············································15 4.1 调试方法···················································15 4.2 调试·······················································15 4.3 运行过程···················································15 4.4 调试·运行中的问题·········································16 结束语···························································17 致谢·····················