基于plc立体车库控制系统设计和实现-毕业论文.doc

摘 要 伴随着科技的进步和生活水平的提高，民众对交通出行工具的要求也在不断的提高，这也对汽车行业的发展起到很的促进作用。汽车的增多带来了诸多的社会问题，主要表现为汽车会排出大量尾气而导致环境污染，同时汽车停放要占用大量的土地资源，且导致停车难的问题日益凸显。为了解决此问题，立体车库开始被研发出来。立体车库可以很好的解决城市停车难问题，且可以根据需要进行改进而满足不同层次用户的需求。这就要设计出硬件可靠、控制系统稳定、性能强大，操作方便的一体化立体车库。 本文就是考虑到这种需求，而设计和实现了一套基于触摸屏的 PLC立体车库控制系统。这种控制系统兼容了PLC和触摸屏的优点，可以很好的满足用户车库控制的要求。此系统选择了 PROFIBUS-DP现场总线通信网络，且利用CPU315-2DP作为系统主站，触摸屏，输出输入单元和变频器当做通信网络的从站。系统以触摸屏进行交互操作，在车主控制下，实现车辆的存储目的。这种系统可以及时的更新车库状态信息，且通过变频器对载车板升降的速度进行控制；车库的输入输出设备ET200M 上，将系统自工作过程中，可以将采集到的车库状态信号发送到CPU，而实现一定的状态监控目的。PLC通过扩展模块控制车库的换向机构，并通过电机对升降设备进行控制。 主要是通过STEP7编程软件，来编写PLC系统硬件网络的组态、同时对总线和DP主从站的参数进行了设置，主要有设备的站地址，通信协议等。同时还设计了变频器和PLC通信程序。通过WinCC flexible软件平台设计了触摸屏程序。 在设计完系统总体结构和各个功能单元之后，本文仿真分析了设计的立体车库控制系统，给家分析结果进行了实验室实物调试。 调试结果表明，本系统设计结构合理、操作方便，存取车效率较高、系统开发的目标顺利实现。 关键字：立体车库；触摸屏；PLC;控制系统 论文类型：应用研究 Abstract With the advancement of technology and the further development of auto industry, the level of social productive forces increased significantly, car gradually became an integral vehicle of peoples daily life. Increased car bring many prominent social problems, one of which is the contradiction between the shortages of land resources and rapidly increasing number of cars more and more serious. Parking problems become prominent increasingly. Stereo garage came into being in the environment. The establishment of stereo garage is an effective measure to solve the parking problem in the city. Depending on the size of market demand, stereo garage needs to diversify to meet the needs of users at different levels, so in-depth study of stereo garage, design hardware reliability, control systems stability, HMI interface friendly, storage and retrieval operation of the stereo garage easily is a very meaningful work. This paper analyzes the basic framework，structure and operation of the stereo garage, designs a stereo garage control system based on Siemens touch screen and PLC. The visibility of the touch screen and the stability of PLC meanwhile the compatibility between them are fully used in