基于PLC的感应节能扶梯设计毕业设计_计算机程序设计_计算机设计辅导_计算机设计代做_java_安卓_小程序_springboot

基于PLC的感应节能扶梯设计

[摘要] 自动扶梯是由一种特殊类型的链式输送机组成的，它由2种特殊类型的带式输送机组成，，连续输送机械，和人员在不同楼层间的建筑上上下。它的出现给我们的日常生活带来极大的便利，同时也成为现代物质文明中的一个重要标志。伴随感应节能扶梯的发展，对其工艺、性能、智能化等要求也愈来愈高，推动这变频器广泛的应用于感应节能扶梯的领域。甚至在车站、码头、商场、机场、地铁等场所的集中应用。

因此，经济学家说：“自动扶梯的出现使人们有一个购物中心的愿望”。交通专家还说：“这是自动扶梯和移动人行道的应用，我们可以尽可能大的建造车站和机场“。自动扶梯的应用已改变了我们的生活。伴随着感应节能扶梯向着高科技化、节能化、智能化等多方向的发展，所以变频器系统广泛应用于感应节能扶梯的领域。所以本文采用西门子MM440的变频器。而对调速系统的改造是红外对射传感器、西门子PLC S7-200可编程序控制器。所以智能感应扶梯具有平稳启动，节能运行和检修运行等功能。所以当感应节能扶梯开启时，为了避免产生巨大的启动电流。当无人乘梯时，感应节能扶梯会由额定运行的速度变为五分之一的速度运行，多以节省了能源，同时减小了机械的损耗，也为顾客明白了扶梯运行方向等等；同时扶梯检修的时候，如此速度也保证了扶梯检修的精度。

[关键字]：自动扶梯系统；西门子s7-200；西门子MM440变频器

Design of induction energy saving escalator based on PLC

[Abstract] the escalator is a a special structure type of chain conveyor in two special types of belt conveyor is combined with in between the different height of buildings in a carrier personnel remittent a continuous conveyor machinery. Its appearance has brought great convenience to our daily life, but also has become an important symbol of modern material civilization. With the further development of the escalator, the users of the process design, and other performance, intelligent requirements are also getting higher and higher, prompting frequency control in the field of the escalator is widely used. Even for stations, docks, shopping malls, airports and underground railways and other places of concentration.Therefore, economists have said: “the emergence of the escalator to make people have a desire to go shopping mall.” Traffic experts say “it’s the application of the escalator and the moving sidewalk so that we can build the station and the airport as large as possible.” The application of escalator has changed our life. With the development of high technology, energy saving and intelligent, the frequency converter is widely used in the field of the escalator. The system adopts Siemens MM440 inverter control combination, to form a control system for the transformation of traditional escalator, infrared radiation sensor, Siemens S7-200 PLC can be compiled program controller to make the escalator with a smooth start, energy-saving operation and overhaul operation. Starting the escalator, in order to avoid produce a lot of starting current; when the unmanned elevator, escalator from the rated speed change for low-speed operation, saving the energy, also reduces the mechanical wear, also for passengers to clear the escalator running direction; escalator maintenance, operation and maintenance functions ensures the escalator maintenance accuracy.

[Key words]: Escalator system; SIEMENS S7-200; SIEMENS MM440 inverter

第1章绪论……………………………………………………………………………………………….. 1

1.1国内外研究现状………………………………………………………………………… 1

1.2自动扶梯系统简介…………………………………………………………………….. 3

1.3该课题研究的目的及意义………………………………………………………….. 5

第2章方案论证………………………………………………………………………………………….. 6

2.1方案论证…………………………………………………………………………………… 6

2.2 控制系统的比较……………………………………………………………………….. 6

2.2.1 PLC与继电器控制系统比较…………………………………………….. 6

2.2.2 变频调速系统……………………………………………………………….. 7

2.3 方案选定………………………………………………………………………………….. 8

第三章硬件的选择………………………………………………………………………………………. 9