多路数字温度报警器设计  

Design of multi-channel digital temperature alarm

作　　者：江钰婷 于云霞 邹雪 窦悉丝 Jiang Yuting;Yu Yunxia;Zou Xue;Dou Xisi(Department of Information and Communication Engineering,Chengdu University of Technology,Chengdu 610059,China)

机构地区：[1]成都理工大学信息与通信工程系,四川成都610059

出　　处：《无线互联科技》2018年第13期77-78,共2页Wireless Internet Technology

摘　　要：文章设计采用DS18B20温度传感器进行多路同时测量,通过温度传感器将信号传送给单片机,用LCD1602显示数据。主控芯片为STC89C51,按键电路可对温度进行设限,默认上限值为38℃,默认下限为16℃。若测得的任意一路的温度超过上限值或低于下限值时,蜂鸣器鸣叫并且对应的LED指示灯闪亮,以此达到温度的显示与报警的目的。This design adopts DS18B20 temperature sensor for multi-channel simultaneous measurement, signal sent to the microcontroller through the temperature sensor, display data by LCD1602. The main chip for the STC89C51, a key circuit can set limits on the temperature, the default limit value is 38 degrees Celsius, the default limit of 16 degrees. If any measured road temperature exceed the upper limit or lower than the lower limit value, the buzzer and the corresponding LED lights flashing, so as to achieve the purpose of temperature display and alarm.

关 键 词：STC89C51 传感器 DS18B20 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]