摘要
介绍基于89C51单片机和DHT22数字温湿度传感器利用nRF24L01无线射频芯片构成的无线温湿度采集系统。系统采用无线分布式结构,提高了节点的可移动性、节约系统实现成本,而且易于安装和维护;同时实现了对多个温湿度测量点的循环采集和显示,并利用串行通信将采集到的数据传送到上位机进行分析处理。经检验,系统具有良好的可靠性及较高的精度。
Designing a kind of wireless temperature and humidity measurement system,that making use of the 89C51 SCM,the DHT 22 digital Temperature and Humidity sensor and the nRF2401 wireless radio frequency chip.The system uses the wireless distributed structures to improve the moving and the prime cost,that make it easy to fix and maintain.Not only can the system realize a number of temperature and humidity measured points on the cycle of acquisition and display,but also can use serial communication to transfer data to PC for analysis and processing.It was proved that the system had better reliability and higher precision in practice.
出处
《自动化与仪器仪表》
2011年第4期44-45,53,共3页
Automation & Instrumentation
基金
淮安市科技支撑计划项目(HAG09052
SN1045)
