基于PLC的通用方舱测控系统的设计+源代码
毕业论文关键词：PLC；通用方舱；人机界面；环境监测
Abstract With the rapid development of science and technology, the rapid development of PLCtechnology, more and more rapid development of automation industry, the use of PLCtechnology to achieve automatic control is important. At the same time, our shelter isgradually being used in various industries, also use the shelter attention of the partiesconcerned, there are broad prospects for development in the future, it is possible to usePLC automatic control the internal environment of the shelter has a positive practicalsignificance. The subject of the shelter design measurement and control system provides anumber of control methods, which can guarantee the automatic monitoring of the shelterstable internal environment and internal environment.This paper describes the use of PLC and touch screen to automatically control andmonitor common shelter internal environment, in this monitoring and control system, PLCas a control unit, by writing the PLC program to the real-time monitoring of commonshelter the internal environment, such as temperature and humidity. While the other cabininterior air conditioning device also controls the monitoring of environmental parametersand to get device status display in the display if the device is not working properly or theshelter environment exception is an alarm, the operator can promptly deal with unusualcircumstances, guarantee universal shelter internal environment stability and security.Additionally shelter can implement extensions and features dismantling of 1 cabin whendismantling, expandable to 2 cabins.
Keywords:PLC;Universal Shelter;HMI;Environmental Monitoring
目 录
第一章 绪论.. 1
1.1 课题研究背景1
1.3 方舱和 PLC 技术存在的问题...2
1.4 课题研究的目的及意义.3
1.5 课题研究的主要内容.....3
第二章 传感器的选型... 4
2.1 传感器的选型原则... 4
2.2 传感器的型号选择... 5
2.2.1 温湿度传感器... 5
2.2.2 红外传感器. 6
2.2.3 水浸探测器. 7
2.2.4 烟雾传感器. 8
2.2.5 门禁感应器..... 10
第三章 硬件设计 12
3.1 PLC 型号选择... 12
3.2 I/O分配表....13
3.3 PLC 扩展模块的选择...14
3.4 硬件接线图..15
第四章 软件设计 17
4.1 PLC 编程软件的介绍...17
4.2 PLC 程序设计流程图...20
4.3 PLC 程序设计原理.21
4.3.1 温湿度数据采集...21
4.3.2 开关量的输入. 22
4.3.3 空调调温调湿功能.....22
4.3.4 扩展撤收方舱的实现.22
4.3.5 告警功能的实现...22
上一篇：PLC特种方舱测控系统设计+程序