PLC建筑电梯控制系统毕业论文中英文资料外文翻译文献.doc

中英文资料外文翻译文献Application of PLC in the Elevator Control System of Intelligence Building Abstract: The paper mainly discusses one subsystem of intelligence building system: the elevator control system. The PLC strong ability in interference and so on makes the elevator industry one after another to apply the PLC to the elevator control system in order to replace the relay being used in traditional elevator control system. The Application of PLC in the Elevator control system reduces the breakdown rate and efficiently improves the operating reliability of the elevator with safety .The structure of system is also simple and tightly packed.The working principle of the elevator control system is: The spot control information is send into the from the customer input devices firstly, then the PLC control cabinet is required to send out the control signal to drive the equipments according to the system demands. The elevator can then proceed the homologous action according to the control request .The paper selects companys 200HE series PLC, introducing parts of signal hookup of the elevator control system and explaining the function of the control cabinet. Lastly the automation programming is introduced. Simulated experiments enunciates that the design method is viable. It can make the personnel of the industry management center to long-distance monitor and control the elevator in control center, to connect the elevator control system with intelligence building industry management system by Ethernet or special-purpose network such as Lon Works.The elevator working state can also be timely watched.These not only can realize scientific centralized management of the elevator, but also can lower the elevator maintenance cost etc. It is one of the developing direction of intelligence building elevator control system. Keywords: PLC; intelligence building; elevator control system; working principle; program design . Introduction In 1980s The first intelligence mansion had been completed in America, then intelligence building has been abroadly taken attentions by the whole world.The concept of intelligence building has been put different meanings along with the development of society. The early stage intelligence building had been thought that it is equal to the intelligent mansion, but now the intelligence building not only includes the intelligence mansions but also involves intelligence residential districts. This paper mainly discusses one subsystem of intelligence building system: the elevator control system. In intelligence residential districts the enterprises information managing system mainly takes charge of the things which related to the daily life, for example supervising the district equipments, managing vehicles, disposing critical situations and so on.The elevator supervising and control system is also necessary to the intelligence residential districts.How to make people feel safe ,stable and comfortable and how to save energy resources and protect environments and so on are the basic requirements to the elevator control system. PLC is a common industry control device.It is a special industry control computer which has the perfect function and simple frame. The PLC strong ability in interference and so on makes the elevator industry one after another to apply the PLC to the elevator control system, in order to replace the relay being used in traditional elevator control system. The Application of PLC in the elevator control system reduces the breakdown rate and efficiently improves the operating reliability of the elevator with safety. This paper mainly discusses the elevator control systems working principles, the systems software and hardware realization methods and so on. . The Working Principle of Elevator Control System In Fig. 1 the Hardware Structure Graph of Elevator Control System is presented.Fig. 1 The Hardware Structure Graph of Elevator Control SystemThe Working Principles of Elevator Control System are stated as follows: The spot control information is send into the PLC from the customer input devices firstly, then the PLC control cabinet is required to send out the control signal to drive the equipments according to the system demands. The elevator can then perform the homologous action according to the control request. There are velocity feedback devices in system, which adopt measure velocity generators to provide the elevator velocities and generally are installed in the tail of tow motors .So this is a feedback control system, which can improve the systems control precision. . The Hardware Configuration of Control System It is not necessary to do interface circuit in the elevators PLC control system.What we should do is to send the signals to PLC digital input terminals.The signals include inside and outside calling signals ,floor location inspecting signals , limiting location signals ,opening and shutdown the elevator door signals etc. The DC power which is provided to PLC can be used as indicator light power. The PLC output points can be directly used to control transducers for the purpose of electrical motors positive turn and reverse ,stop and control each segment velocity and so on . companys 200HE series PLC has been selected as major control configuration according to the input/output points and the length of users program. On the other hand we also consider that the systems function can be expanded in the future .200HE series PLC ,whose perfect function and strong reliability, can meet these demands at present. Moreover, input and output devices are needed in elevator control system, besides the PLC, systems major control device. Part of signal hookups of the elevator electric control system is shown in Fig.2. The control cabinet is the control center, from which we can send out various control commands. The control cabinet often was installed in the elevator room .The electric devices and signal systems, for example the contactors, relays, capacitances, resistors, rectifiers and transformers etc., are centralized in the control cabinet. The Power of the control cabinet was imported from the chief power of the elevator room. This power was also introduced into control panel by soft cables and was linked with each control buttons. The power lines which was derived from control cabinet was delivered to tow electric motors. Others control lines and signal lines were separately sent to each floor junction. Program design The design includes two parts: hardware and software.The hardware design is the base of software. Considering that the control demands are relatively complex, we design the programs separately according to the control function. Furthermore, we follow the principle as follows: When the elevator is ascending, the ascending demands are prior to other demands; When the elevator is descending, the descending demands are prior to other demands. The Sequential Function Chart (SFC) is adopted during the boxes to form elevators executive circuitry design. It is a method specially used in industrial sequential control. The SFC method can describe the systems working procedure in great detail. For example there is a three layers intelligence building. A subprogram, the calling from the third floor as elevator in the first floor, is shown in Fig. 3 with SFC. When all SFC are drawn and I/O address lists are presented, we can convert the SFC to Ladder Diagram (LD).Considering the strict demands for time and for locked each other ,we introduce working bits to remember working steps. We should write out the working bits control program, which can link together each step and make the previous step as the next step restriction condition. Thus the actual outputs are the logic combination of these working steps. . Conclusion The system program has been debugged completely at present. Simulated experiment enunciates that the design method is viable. Application of PLC in the elevator control system is an effective method. It can make the personnel of the industry management center to long-distance monitor and control the elevator in control center, to connect the elevator control system with intelligence building industry management system by Ethernet or special-purpose network such as Lon Works. The elevator working state can also be timely watched. These not only can realize scientific centralized management of the elevator, but also can lower the elevator maintenance costs etc. It is one of the developing direction of intelligence building elevator control system.References1Liang jianqi , Duan zhengang,and He wei .Communication Implementation of PLC-Based Elevator Remote Monitoring System (in Chinese)J Journal of Beijing Technology and Business University 2003,21(2):18-21 2Ma Hongqian ,Zhang Xin .Application of PLC in Higher Building Elevator Control System (in Chinese)JJournal of Liaoning Higher Vocational Technical Institute 2002,4(5): 86-88. 3Cui Guangyuan. The Application of PLC to Elevator Control. (in Chinese)JJournal of Dongbei Electrical Power Technology 2003,(7): 50-52. Author BiographiesThe first author is currently working as a teacher in Taiyuan University of Technology. Her current research interests include signal processing, intelligence control etc. The second author is currently working as a teacher in Taiyuan University of science and Technology. Her current research interests include telecommunication, intelligence control etc. 附录B 外 文 翻 译PLC在智能建筑电梯控制系统中的应用摘要：本文主要讨论了智能建筑系统的一个子系统：电梯控制系统。PLC具有强抗干抗能力等优点使得电梯工业一次又一次的将PLC应用于电梯控制系统，以取代传统的使用继电器控制电梯系统。PLC在电梯控制系统应用，降低了故障率，并有效地提高了电梯运行的可靠性与安全性。系统的结构简单、紧凑.电梯控制系统的工作原理是：首先将使用者的输入命令发送到PLC中，然后PLC根据系统的要求，发出控制信号以驱动外围设备，电梯就可以进行相应的动作了。本文选择omron（欧姆龙）公司的C200HE系列的PLC ，介绍了电梯控制系统的外围接线电路，并解释该控制装置的功能。最后介绍编程，通过模拟实验证明了该方案是切实可行的。它可以使工业管理中心的工作人员在远距离的控制中心就可以实现对电梯的监测和控制，通过以太网或个人专用网络，如Lon Works，将电梯和控制中心连接起来，这样一来电梯的工作状况可以得到及时的监视。这不但实现了电梯的科学集中管理，而且降低电梯维修费用。它是智能建筑电梯控制系统的一个发展方向。关键词：PLC 智能建筑 电梯控制系统 工作原理 程序设计 引言在20世纪80年代，第一座智能大厦在美国竣工，之后智能建筑引起了全世界的关注。随着社会的发展，智能建筑有着不同的含义。早期智能建筑被认为是等同于智能大厦，但是现在智能建筑不仅涉及智能大厦，而且还涉及智能住宅小区。本文主要讨论了智能建筑系统的一个子系统：电梯控制系统。智能住宅区内企业的信息管理系统主要是负责涉及到日常生活的事务，例如监管住宅区内的设备，车辆，处理紧急情况等等.电梯的监管和控制系统对智能住宅区来说也是必须的.如何使人们感到安全，稳定和舒适，以及如何节约能源资源和保护环境等是电梯控制系统的基本要求。PLC可编程控制器是一种常见的工业控制设备，是一种特殊的工业控制计算机，具有完善的功能和简单的框架。PLC具有强抗干抗能力等优点，使得电梯工业一次又一次将PLC应用于电梯控制系统，以取代传统的使用继电器控制电梯系统。PLC在电梯控制系统应用，降低了故障率，并有效地提高了电梯运行的可靠性与安全性。本文主要论述了电梯控制系统的工作原理，系统的软件和硬件实现方法等。II 电梯控制系统的工作原理电梯控制系统的硬件结构图如图1所示图1电机控制系统硬件结构图电梯控制系统工作原理说明如下：首先将使用者现场的输入信息发