基于单片机的多路数据采集与传输显示系统  

Multi-channel data acquisition and transmission display system based on SCM

作　　者：刘小群[1] 钱郁[1] 陈磊[1] 

机构地区：[1]宝鸡文理学院物理与信息技术系,陕西宝鸡721016

出　　处：《电源技术》2014年第8期1546-1548,1563,共4页Chinese Journal of Power Sources

基　　金：国家自然科学基金(11105003);陕西省科技厅基金项目(2012JQ1005);陕西省教育厅基金项目(11JK0847)

摘　　要：以STC90C516单片机为主控制单元,采用数字温度传感器DS18B20作为温度传感器,采用数字温湿度传感器DHT11作为湿度传感器,采用液晶屏TFT2.4作为显示模块,设计了三路温度、两路湿度检测系统.给出了单片机单元、温度、湿度检测单元、LCD显示单元及辅助单元的硬件、软件设计方法.实验结果表明：该系统在-55～125℃测温,偏差小于0.5℃,能够显示实时时钟、时钟校准、闹铃等,具有可靠性高、体积小、携带方便、成本低、界面友好等特点,适用于大部分的温度、湿度数据采集.The three-channel temperature,two-channel humidity detection system was designed by using STC90C516 SCM as main control unit,digital temperature sensor DS18B20 as a temperature sensor,digital temperature humidity sensor DHT11 as humidity sensor and TFT2.4 LCD as display module.The hardware and software design methods of the microcontroller unit,temperature and humidity detection unit,LCD display unit and auxiliary unit were given.The experimental results show that the system deviation is less than 0.5 ℃ at the detection temperature of-55-125 ℃.It can display real-time clock,clock correction and alarm clock.The system has the advantages of high reliability,small volume,portability,low cost,friendly interface,etc,suitable for most of temperature and humidity data acquisition.

关 键 词：单片机 数据采集 传感器 无线传输 控制及显示 

分 类 号：TM93[电气工程—电力电子与电力传动]