【摘要】 针对环境温湿度检测的需求,设计了一种点对多点的星型无线温湿度监控网络。以无线通信模块nRF401为基础,配合AT89C2051和数字温湿度传感器SHT11构建了从机,以P89C51RD2BN单片机和USB接口芯片PDIUSBD12构建了主机。对系统的硬件原理及温湿度采集方法进行了介绍,对无线通信协议及USB固件设计方法进行了较详细分析。经上位机软件测试,系统运行稳定,具有较好实用性,可应用于多种场合的无线温湿度监测。更多还原

【Abstract】 To meet the requirement of temperature and humility collecting,a point-to-multipoint wireless temperature and humidity monitoring network was designed,which belonged to star network architecture.It took the wireless communication module nRF401 as the foundation,the client machine combined AT89C2051 MCU with the digital humiture sensor SHT11,and the server machine was constructed using the P89C51RD2BN MCU and USB interface chip PDIUSBD12.This paper introduced the system’s hardware schematics and the humiture data acquisition methods,and a more detailed analysis of wireless communication protocol and USB firmware design method.Be tested of upper computer software,the system runs stably and has good usability,which may be applied in many kinds of wireless humiture monitoring.更多还原