1、 毕业设计（论文）毕业设计（论文） 题题 目：目：基于基于 MCS-51 的多路温度采集的多路温度采集 控制系统的控制系统的设计设计 学 院： 电气与电子工程学院 专 业： 电子信息工程 学生姓名： 指导教师： 摘 要 I 摘 要 本文设计是以 MCS-51 单片机系统为基础的，通过热电阻变送器对热电阻 随温度的变化而得到的模拟信号进行采集，连接多路模拟开关实现多路模拟信 号的采集，并通过 A/D 转换器对模拟信号进行数模转换，把转换得到的数字信 号按照顺序分别送入单片机或把指定的那路信号送入单片机，通过单片机进行 控制操作，通过对单片机的数据存储器的扩展和程序存储器的扩展来提高片内 存储器、
2、数据存储器的容量，以便于在单片机的应用中满足单片机在定时器、 中断、串行口等方面的要求；本设计是通过 LED 来实现单片机的现实系统的， 通过单片机对多路模拟开关的控制进行多选一，把其中一路的信号经过 A/D 转 换器的转换，在通过单片机把采集到的信号送到 LED 电路当中进行显示，此设 计中 LED 显示使用的串行接口来显示的，它是通过人的视觉暂留特性，只观赏 感觉是连续点亮的；本文通过单片机报警系统来实现热电阻传感器随测量的温 度范围 200700 摄氏度，若超出这个温度范围则报警。以单片机为核心完成温 度巡测、数据处理.显示及上下限报警功能。 关键字关键字：A/D 转换器；DBW 热电阻
3、变送器；单片机 外文摘要 II Abstract It is based on MCS-51 one-chip computer system for this text not to design, is it gather to go on through thermal resistance changer to analog signal that thermal resistance receive with change of temperature, join many way analog switch realize many way collection of analog
4、 signal , is it count through A/D converter to analog signal mould change to go on, Send digital signal received to change according to order into one-chip computer or designated those distance signal send into the one-chip computer separately, carry on control operation through one-chip computer ,
5、is it improve scenes of memory storing device to come through data expansion and expansion , procedure of memory of memory in one-chip computer. Capacity of the data memory ,So that the demand in meeting the one-chip computer in the timer , cuts off , the serial mouth in the application of the one-c
6、hip computer etc.; Is it is it realize realistic system of one-chip computer to come through LED , is it select for one more through one-chip computer control on analog switch of many ways to go on to design originally, undergo conversion , A/D of converter among them one No. of signals , send through one-chip computer signal got to gather LED show among the circuit, design this LED serial interface used to show is it show to come, it to cut characteristic of staying throug
