上海电力学院本科毕业设计（论文） 题 目： 基于单片机的温度测量系统 院 系： 自动化工程学院 指导老师： 马进明 【摘 要】温度测量在实际生产和人们生活中都有广泛应用，为此我设计了一个温度测量系统。本系统利用 AT89S52 单片机作为主控制器件，DS18B20 作为测温传感器通过 LED 数码管串口实现温度显示，通过按键电路设置上下限报警温度。并且在到达报警温度后，系统会自动报警。本文设计是从测温电路、主控电路、报警电路等几个方面来分析说明的该系统利用 DS18B20 测温范围广、测温分辨率高、外围电路简单、功耗低等特点，与 AT89S52 构成比较简单的测温电路。该系统设计灵活、抗干扰性好，可以在恶劣的工作环境中进行温度测量。 关键字：单片机；温度传感器；温度计；报警【Abstract】.In this design using the AT89S52 microcontroller as the main control device, DS18B20 as an LED digital temperature sensor tube to achieve temperature display. The key circuit sed the temperature to set the alarm on the lower temperature. And the temperature reaching the alarm, the system will automatically alarm. This design is from the temperature measurement circuit, main control circuit, alarm circuit, and several other aspects of the note. The system uses DS18B20 temperature measurement range, high temperature measurement resolution and peripheral circuit is simple, low power consumption, compared with AT89S52 devices constitute a simple temperature measurement circuit. The system design of flexible, anti-interference performance is good, can be in the poor working environment for temperature measurement.Keywords：AT89S52；DS18B20；thermometer；alarm目录1 引言..........................................................................................................................................11.1 选题的背景...................................................................................................11.2 选题的目的及意义....................................................................
