PLC建筑电梯控制系统中英文外文翻译文献.docx

1、PLC建筑电梯控制系统中英文外文翻译文献中英文资料翻译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 afte

2、r 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 .

3、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 ac

4、cording 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 automatio

5、n 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

6、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 o

7、f 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

8、 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 b

9、ut 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

10、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 resour

11、ces 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 ind

12、ustry 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 elevato

13、r 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 Ha

14、rdware 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 eq

15、uipments 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 mot

16、ors .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 signa

17、ls 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 transduc

18、ers 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 t

19、hat 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

20、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, capaci

21、tances, 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 l

22、ines 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 c

23、ontrol 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 p

24、rior 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

25、 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

26、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. . Conc

27、lusion 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 cont

28、rol 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 manageme

29、nt 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 Chines

30、e)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 Elevato

31、r 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 c

32、urrently working as a teacher in Taiyuan University of science and Technology. Her current research interests include telecommunication, intelligence control etc. 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