基于PLC的水位自动调节系统.doc

基于PLC的水位自动调节系统设计 作者姓名： 专业名称：电气工程及其自动化 指导教师： 讲师  摘要 随着社会进步和经济的迅速发展，人们对住房条件要求的提高，高位生活用水和工业用水逐渐增多，传统的控制方式已经落后。以前采用人工进行控制蓄水池的水位，由于不可能每时每刻对水位进行准确的定位监测，并且带有很大的主观性，所以很难准确控制水泵电机的启停，并且大多数供水系统采集信息数量少、处理慢、传递迟，难以实现设备之间及系统与外界之间的信息交换，严重制约了企业信息集成及企业综合自动化的实现。计算机和自动控制技术不断进步使得高性能的供水系统的开发成为可能。因此，研究高性能、网络化的供水监控系统，对降低能耗、信息共享具有重要的现实意义。 本设计介绍了以可编程逻辑控制器为核心的控制系统，实现了对水位的自动调节控制。可编程序控制器(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，今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。现今社会，自动化装置无处不在，在控制技术需求的推动下，控制理论本身也取得了显著的进步，水位的检测和控制，再也不需要人工进行操作。实践证明，自动化操作，具有不可替代的应用价值。 关键词 ： 自动 水位调节  Abstract With social progress and rapid economic development, improve housing conditions, high domestic water and industrial water is gradually increased, the traditional control method has lagged behind. Previously used to manually control the water level of the reservoir can not be at all times accurate positioning of monitoring the water level, and with a lot of subjectivity, it is difficult to accurately control the start and stop of the pump motor, and most of the water supply system a small number of collected information, slow processing, late pass, it is difficult to achieve the exchange of information between devices and systems with the outside world, has seriously hampered the implementation of the enterprise information integration and enterprise automation. Computers and automatic control technology continues to progress the development of high performance water supply system made ??possible. Therefore, the study high-performance, network-based water monitoring system to reduce energy consumption, information sharing has important practical significance. This designs introduces a programmable logic controller as the core control system and automatically adjust the water level in control. Programmable logic controller (PLC) is computer technology as the core of the universal automatic control device, its functionality, high reliability, and programming is simple, easy to use, compact, has been widely used in i