基于PLC控制的四层电梯设计-毕业论文.docx

目 录摘要1Abstract2第1章绪论21.1本课题的研究目的及意义31.2 PLC在电梯系统的应用现状与发展趋势41.3本课题主要研究内容4第2章基于PLC的四层电梯系统硬件设计52.1 PLC的选择及设计52.1.1 PLC简介52.1.2 PLC的选择52.1.3 PLC的输入/输出分配表及接线图62.2 传感器的选择82.2.1 称重式传感器82.2.2 红外传感器8第3章基于PLC控制的四层电梯系统程序设计103.1 四层电梯系统的控制要求103.2 四层电梯的系统流程图113.3 四层电梯的系统程序分析113.4 程序调试以及结果18第4章总结与展望214.1 总结214.2 展望22参考文献22致谢23附录24摘要随着科学技术的发展，近年来我国的电梯生产技术得到了迅速发展，一些电梯厂也在不断改进设计、修改工艺。电梯作为高层建筑物的重要交通工具与人们的工作和生活日益紧密联系。随着国民经济的飞速发展, 现代化程度日益提高,高层建筑愈来愈多, 电梯也随之增多, 电梯产品在人们物质文化生活中的地位得到了提高,成为重要的运输设备之一。本文首先介绍了PLC在电梯系统的应用现状和发展趋势，其次根据输入输出选择三菱FX2N—48MR型号的PLC以及称重传感器ECW-P1和感应人员出入的红外传感器AS612并给出了I/O分配表以及接线图，然后根据控制要求以及单体呼叫的优先度给出了流程图并设计了PLC程序，经过调试，该程序能实现四层电梯的正常运作，表明了该程序的有效性。最后对电梯进行进一步的展望，希望能在电梯内增加紧急呼救功能，火灾等一系列突发状况的报警功能，能让人们坐电梯更安全，更舒适。关键词：PLC电梯传感器控制系统AbstractWith the development of science and technology, in recent years, Chinas elevator production technology has been rapid development, some of the elevator factory is also in the continuous improvement of the design, modification process. Elevator as an important means of transportation of high buildings and peoples work and life increasingly close contact. With the rapid development of national economy, the level of modernization is increasing, more and more high-rise buildings, the elevator is also increasing, elevator products in peoples material and cultural life status has been improved, become one of the important transport equipment.This paper first introduces the application status and development trend of PLC in the elevator system, and then according to the input and output of FX2N—48MR model PLC and sensor ECW-P1 and sensor access infrared sensor AS612 and gives the I/O distribution table and wiring diagram, and then according to the control requirements and the priority of the monomer call gives the flow chart and design PLC program, after debugging, the elevator can be the normal operation of the four elevator, indicates the effectiveness of the program.Finally hope to increase the emergency function in the elevator, a series of fire and othe