8路温度巡回检测仪

JIU JIANG UNIVERSITY 智能仪器课程设计

院系机械与材料工程学院

专业测控技术与仪器

姓名徐光亮

学号 14 年级2008级（机A0821）

指导教师张胜波

二零一一年十月

目录

一．设计思路及方案选定--------------------------------------------------------5

1.1设计要求-------------------------------------------------------------5

1.2设计方案-----------------------------------------------------------6二．硬件的选择与设计----------------------------------------------------------7

2.1 CPU------------------------------------------------------------------7

2.2 检测模块-------------------------------------------------------------7

2.3 显示模块------------------------------------------------------------10

2.4 键盘输入模块--------------------------------------------------------13

2.5 时钟模块------------------------------------------------------------14 三．软件设计-----------------------------------------------------------------15

3.1主程序------------------------------------------------------------15

3.2时钟显示----------------------------------------------------------16

3.3 键码检测----------------------------------------------------------21

3.4温度采集----------------------------------------------------------27

3.5 温度数值的转化---------------------------------------------------29

3.5 温度的显示-------------------------------------------------------30 四．设计小结-----------------------------------------------------------------33 五．参考文献-----------------------------------------------------------------33

摘要

温度的检测在很多方面都有非常广泛的应用，小到日常生活中的一些应用，比如挂式温度显示仪等，大到大型工程应用，比如在汽车的很多系统中便有温度检测设备，用以实时的监视各个功能模块的运行状况。

温度巡回检测仪一种输入温度，直流电压等模拟信号，在规定的时间间隔进行数据记录的巡回检测记录仪。温度巡回检测仪分成一体式和分离式二种，其中一体式有30点、20点、15点三种测定点数；分离式有主体和端子箱组成，主体箱装有把手可携带，也可用于嵌装。最大测量点数可达到210点，共有5个种类。广泛应用于工业炉温度分布、电子产品特性试验、气象观察、发动机测试、公害测定管理、原子能材料试验、全自动校正装置、测量研究和试验等。

温度检测是现代检测技术的重要组成部分，在保证产品质量、节约能源和安全生产等方面起着关键的作用。由单片集成电路构成的温度传感器的种类越来越多，测量的精度越来越高，响应时间越来越短，因其使用方便、无需变换电路等特点已经得到了广泛的应用。随着社会的发展、科技的进步以及人们生活水平的逐步提高，各种方便于生产的自动控制系统开始进入了人们的生活，以单片机为核心的温度采集系统就是其中之一。它实用性强，功能齐全，技术先进，使人们相信这是科技进步的成果。温度是工业控制中主要的被控参数之一，特别是在冶金、化工、建材、食品、机械、石油等工业中，具有举足重轻的作用。

温度采集系统的开发在很大意义上提高了生产生活的需要，方便了生产中对温度的控制，有效的提高了生产质量。外围电路比较简单杂，测量精度较高，分辨力高，使用方便。温度检测是现代检测技术的重要组成部分，在保证产品质量、节约能源和安全生产等方面起着关键的作用。本次设计正是为了完成温度巡回采集而设计的，而且采用了温度传感器LM35，可以说与人们的日常生活是息息相关的，具有很大的现实意义。

关键词：单片机 A/D转换器 MCS-8031 ADC0809

Abstract

Temperature detection in many ways have a wide range of application, small to some application of everyday life, such as hanging temperature display, etc, to large-scale engineering application, such as in many of the car in the system will have temperature testing equipment, real-time monitoring for the operation status of modules.

Temperature circuit detector an input temperature, such as dc voltage analog signals in the required time intervals data record circuit testing recorder. Temperature circuit detector into an integral and separated two kinds, among them there are 30 points, one-piece 20 points and 15 points were three points; A separate subject and terminal box composition, main body box containing handle to take, also can be used in the embedded outfit. The biggest measurement points can be up to 210 points, there are five kinds. Widely used in industrial furnace temperature distribution, electronic product characteristic test, weather observation, engine test, pollution management, atomic energy materials were fully automatic calibration equipment, test, measurement research and experiment.

Temperature detection is the modern testing technology important constituent, in the guarantee of product quality, energy saving and safety production, etc, play a key role. By monolithic integrated circuit consists of the temperature sensor's more and more kinds of, the accuracy of measurement more and more high, shorter response time, because of its easy to use, not transform circuit and other characteristics have been widely used. With the development of society, the progress of science and technology and improving gradually of people's living standard, all kinds of convenience in the production of the automatic control system began to enter into people's life, is mainly composed of the temperature gathering system is one of them. It practical strong, the function is all ready, advanced technology, make people believe that this is the progress