基于VHDL的电梯控制系统中英文翻译.doc

摘 要电梯是标志现代物质文明的垂直运输工具，是机电一体化的复杂运输设备。而电梯的核心是电梯控制器。对于电梯的控制，传统的方法是使用继电器接触器控制系统进行控制，随着技术的不断发展， 采用硬件描述语言vhdl来完成电梯控制器的设计, 是设计智能化的标志。本文结合eda自上而下的设计特点分析了电梯控制系统的工作原理，给出了电梯控制系统的设计框图，并用vhdl语言描述出了整个系统，最后用quartus软件进行了仿真，分析了仿真结果，进行了总结。本文结构主要分成四大部分：第一章介绍了电梯控制系统的发展情况及发展趋势，交代了课题的研究背景，并对要完成的工作做了介绍；第二章介绍了eda技术的主要特点，并对vhdl语言的功能及其结构进行了描述，并着重介绍了状态机的含义；第三章以vhdl语言作为描述工具，对四层电梯的结构进行分析，给出了电梯控制器的设计流程和状态机描述；第四章用quartus软件对程序进行了仿真，并对仿真结果进行了说明和分析，并进行总结。关键字：电梯控制器，eda，vhdl状态机the elevator control system based on vhdlabstractthe elevator is symbolized the modern material civilization verticaltransport means, are machine - the electricity integration complextransport vehicle. it involves the electronic technology, themechanical engineering, the electric power electronic technology, themicrocomputer technology, the electric power drives the system and thecivil engineering and so on many scientific domains. at present theelevator production situation and the use quantity have become one ofnational modernization degree symbols. along with the modernized cityhigh speed development, has the massive streams of people and thething class every day needs to transport. in order to save with andthe adaption economics and trade enterprise development, a flickeringtall building rises straight from the ground, these high-riseconstructions vertical transportation are a prominent question, withpeoples work and life close correlation. along with societys development, the elevator use is more and morecommon, from originally only in the commercial building, theguesthouse use, transited to in place use and so on the officebuilding, building of residence, and also unceasingly enhances to theelevator function request, correspondingly its control mode also indoes not stop changes. regarding the elevator control, the traditionalmethod is uses the relay - contact device control system to carry onthe control, along with the technical unceasing development, themicrocomputer is day by day widespread in elevator controlapplication, now entered the entire microcomputer control the time. the present era day by day increases along with the high-riseconstruction with the architectural design scale enhancement, causesthe people more and more to be also high to the elevator request. atpresent not only has been restricted in requests the elevator totravel by fast, comfortable, manufacture firm, the decoration iselegant, the people to the elevator security reliability andmulti-purpose were proposing the more and more high request, is facingthe control intellectualization direction for this elevator todevelop. but the elevator core is the elevator controller, the elevatorcontroller realization also has many center ways, such as plc,monolithic integrated circuit, and so on in the before elevatorcontroller design, majority of all was uses plc to realize, but plcwas realizes the elevator control based on the periphery hardware,such design was very difficult to realize the elevatorintellectualization, had to realize the elevator intellectualization,had to select other design methods to complete to the elevatorcontroller design, but used the hardware description language toco