基于PLC的物流堆垛机控制系统设计.doc

毕 业 论 文 基于PLC的物流堆垛机控制系统设计 学生姓名： XXX 专业班级： 自动化2011级2班 指导教师： XXX 学 院： 机电工程学院 2015年5月  基于PLC的物流堆垛机控制系统设计 摘要 随着近年来物流产业的快速发展，自动化立体仓库应运而生，而堆垛机系统是整个立体仓库系统的核心，与之相关的技术逐渐成为研究的重点。设计一种能够有效、快速、实时、稳定自动化立体仓库的堆垛机控制系统成为工业控制领域中一项重要课题。本文给出了轨道堆垛机基于PLC控制系统的总体设计方案，并给出了具体的硬件搭建流程和软件设计方法。 本文对堆垛机的国内外发展状况以及发展趋势进行了研究。设计了一种单位立柱巷道堆垛机控制系统。本文采用西门子公司s7-200PLC，了解了轨道堆垛机的特点后，认为其技术指标以及控制方式进行设计非常重要。为了研究堆垛机的定位技术对现有定位技术以及认址方式进行比较，最后决定选用激光测距传感器与绝对认址方式相结合的方案对轨道堆垛机进行实时位置控制，U型传感器的原理和测距方法，参数以及安放方式。给出了单位立柱巷道堆垛机的流程图及程序。 实验结果表明本文设计的堆垛机控制系统整体效果良好，满足学校对堆垛机的性能要求。设计的控制系统定位误差明显降低，堆垛机的运行速度也有一定的提高，一方面能够保证货物进仓的精准性，另一方面实现了系统运行的快速性，同时保证了系统的稳定性。 关键词　自动化立体仓库 堆垛机 PLC 传感器  The design of logistics stacker control system based on the PLC Abstract With the rapid development of logistics industry in recent years, automated stereoscopic warehouse arose at the historic moment. Recently, the stacker system became the core of stereoscopic warehouse system, and related technology has gradually became the focus of research. To design a kind of effective, rapid, real-time, stable and automated stereoscopic storehouse stacker control system has became an important topic in an industrial control field. Track piling machine based on PLC control system was given in the overall design of this paper, and the paper also gave the specific procurement processes of hardware and the design method of the software . This paper studied the development situation and trend of the stacker at home and abroad, and designed a pillar stacker machine control system. This paper adopted Siemens s7-200 PLC, after understood the characteristics of the track stacker, realized that its technical indicators and the control method to carry on the design is very important. In order to study the stacker positioning technology, the paper made a comparison between existed positioning technologies and methods to recognize address ,finally decided to use the way of combining laser range sensor with absolute recognition of position to make re