外文翻译--基于单片机控制的电梯控制器-其他专业.doc

外文翻译 频率合成器设计系 别：电子与电气工程系年级专业：2012级电子信息工程（专升本）姓 名： 学 号： 题目名称： 指导老师评语： 指导老师签名： 年 月 日 外文翻译The elevator controller based on Single-chip microcomputerAbstract: the design is based on single-chip microcomputer to control the use of the appliance, the use of digital tube to display the position and direction of the floor, using two LEDs to replace the motor, to achieve the motor positive inversion by single-chip microcomputer to control the LED on and off, to check the position of the elevator through the timer delay.Keywords: Elevator AT89S51 LED motor control floor check1 IntroductionWith the rapid development of the continuous improvement of living standards and the national economy. Each big city buildings in continuously to the high-level development. Therefore lift play a decisive role in our life. The elevator is not only the important equipment for the production process, it is a transportation equipment by the people with frequent. Therefore, the elevator control technology is also in constant improvement and perfection, commonly used control technology mainly has two kinds of Technology: Based on PLC control and based on MCU control technology of two. Use the elevator PLC control, stable and reliable performance, but the cost is too high. The elevator control can greatly reduce the cost and the operation is reliable based on the elevator control, so now most controlled by single chip microcomputer.2 of the overall design scheme2 of the overall design scheme2.1 design ideasThe basic idea of this design is the use of AT89s51 microcontroller as the core, to control the use of its rich interface and peripheral circuit with I/O. Check the position of the timer delay to control the elevator, using 8 bit LED static display to display the elevator location, and use 74ls245 to drive LED dis