基于MCS-51单片机的电梯控制系统设计.doc

吉林化工学院毕业设计说明书 基于MCS-51单片机的电梯控制系统设计 Design of Elevator Control System Based on MCS-51 学生学号： 3--419 作 者： 程控实验室 院 系： 电信学院 指导教师： 职 称： 副教授 吉 林 化 工 学 院 Jilin Institute of Chemical Technology摘 要 电梯整套系统以MSC51单片机为主，通过MSC51单片机的核心处理来支配各个组成部分，电梯的楼层选择由楼层开关和电梯内部开关来控制，通过单片机的处理由L293单片机来控制电梯的上下行，轿箱门的开与关由红外传感器和电机2控制，楼层控制主要由干簧管来检测电梯所在位置，到达一个楼层后干簧管受轿箱上方的永久性磁铁影响，使干簧管的SN两个平行金属合并，从而由所在楼层的干簧管给出一个低电平送达单片机，由单片机来检测当前是否是所要到达的楼层。 本系统以AT89C51单片机为核心，通过对各楼层用户按钮信号的检测和处理，按预定的运行规则和程序，发出控制信号对直流电机进行调节，从而控制电梯的启停、速度、升降和运行时间，还有轿厢的开关等。在轿厢的内部和外部都设置楼层选择按键，控制电梯轿厢的位置，在各楼层设置了位置检测电路，保证了电梯停靠位置准确。整个系统实现了电梯控制的基本功能[2]。 关键词：电梯控制；单片机；干簧管 Abstract Elevator whole set system by the MSC51 monolithic integrated circuit primarily, controls each constituent through MSC51 monolithic integrated circuits core processing, elevators floor choice controls by the floor switch and the elevator interior switch, controls elevators ascending-descending through monolithic integrated circuits processing by the L293 monolithic integrated circuit, sedan box gate opening with closes by the infrared sensor and the electrical machinery 2 controls, the floor control mainly by does the reed pipes to examine the elevator in the position, after arriving at a floor, does the reed pipes sedan box above permanent magnet influence, causes to do the reed pipes the SN two parallel metal merge, thus by gives a low level delivery monolithic integrated circuit in floors dry reed pipes, by monolithic integrated circuitExamines current whether is the floor which must arrive. This system take the AT89C51 monolithic integrated circuit as a core, through to various floors user button signal examination and processing, according to the movement rule and the procedure which prearranges, sends out the control signal direct class electrical machinery to carry on the adjustment, thus controls the elevator to open stops, the speed, the fluctuation and the running time, but also has the theate