基于单片机的多点温度监控系统设计

Design of multi-point temperature monitoring system based on single chip microcomputer

设计了基于单片机的多点温度监控系统,旨在解决传统的单点线式控制的不足。系统包括主机和3个从机模块,从机使用数字温度传感器DS18B20对温度进行检测,将温度信号传输给单片机,单片机对温度信号进行处理,处理后的数据送给无线模块nRF24L01,然后将数据发送给主机的nRF24L01模块,主机的nRF24L01接收到温度信号后,送给主机单片机进行处理,控制LCD1602进行温度显示,当温度超过上下限值时,单片机会启动外围电路的蜂鸣器进行报警。实际测试结果表明,该系统所测量的温度误差小、系统性能良好、稳定可靠,具有较好的推广价值。

A multi-point temperature monitoring system based on single-chip microcomputer is designed to solve the shortcomings of traditional single-point wired control.The system includes the host and three slave modules.From machine using digital temperature sensor DS18 B20 to test the temperature,the temperature signal is transmitted to MCU,MCU to temperature signal processing,the processed data to the wireless module nRF24 L01,nRF24 L01 module and then sends the data to the host,the host nRF24 L01 after receiving the temperature signal,sent to the host MCU processing,control the LCD1602 display temperature,when the temperature more than upper and lower limit,the SCM will start peripheral circuit buzzer alarm.The actual test results show that the temperature error measured by the system is small,the system performance is good,the structure is simple,the stability is reliable,and it has good popularization value.