基于nRF24L01的无线温度报警系统设计

Design of Wireless Temperature Alarm System Based on nRF24L01

[目的]随着社会经济发展,温度检测系统在日常生产和生活中变得越来越重要。为准确检测温度及实现快速报警功能,本研究设计一种基于nRF24L01无线传输模块的温度检测报警系统。[方法]系统通过无线传输方式来实现温度检测和报警功能,整个测温报警系统由主机和从机两部分组成。主机和从机均采用STC89C52RC单片机,从机将DS18B20温度传感器检测到的温度数据通过无线传输方式发送给主机。当检测到的温度超过设定值时,主机部分的单片机就会及时报警。[结果]在单片机电路板上连接好各个模块的接线,烧录完程序后对系统进行测试。系统能快速准确地检测温度,当检测到的温度超过设定值时可迅速报警。[结论]系统具有硬件结构简单、功耗较低、成本低廉等优点,在家居、农业、工业等领域有很好的应用价值。

[Purposes]With the development of social economy,temperature detection system is becoming more and more important in daily production and life.In order to accurately detect the temperature and realize the rapid alarm function,this study designs a temperature detection and alarm system based on nRF24L01 wireless transmission module.[Methods]The system realizes the temperature detection and alarm function through wireless transmission.The whole temperature measurement alarm system consists of two parts:the host and the slave,which both adopt STC89 C52 RC single chip microcomputer.The slave sends the temperature data detected by DS18 B20 temperature sensor to the host through wireless transmission.When the detected temperature exceeds the set value,the microcontroller of the host part will alarm in time.[Findings]The wiring of each module was connected on the circuit board of the single-chip microcomputer.After downloading the program,the system will be tested and could detect the temperature quickly and accurately.When the detected temperature exceeded the set value,it could quickly alarm.[Conclusions]The system has the advantages of simple hardware structure,low power consumption and low cost,and has good application value in home,agriculture,industry and other fields.