ISM频段无线热计量传感器网络节点模块的设计与开发

摘要

针对智能住宅建筑能效监管需求和现有热计量系统布线成本高、改造难度大的问题,将ISM频段无线收发芯片应用于无线热计量数据的传输过程中,对热计量传感器网络基本结构和工作原理进行了研究,开发了一种无线热计量数据传感器网络节点模块,设计了该节点模块的基本结构和主要电路,并重点介绍了其SPI接口连接方式及数据传输方法、无线收发芯片寄存器读写控制和热计量数据的无线收发过程;实验结果表明,所设计的无线热计量传感器网络节点模块在保证热计量数据稳定、可靠采集传输的同时,大大地增加了热计量传感器网络的灵活性和适用性,为住宅建筑能效数据的智能化采集、传输和管理提供了一种经济、高效的解决方法.%Aiming at the requirements of energy efficiency supervision in intelligent residential building and the problems of remodel difficulty and high cable laying cost in the existing heat measuring system,the ISM wireless chip was applied in heat data collection and transmission.After the research of sensor network's structure and working principle,a wireless heat measuring node module was developed and its main circuit was designed.The SPI surface's connection mode and data transmission method,wireless chip register read/write controlling flow,heat data's wireless sending and receiving process was presented.The experimental results showed that the node module can not only ensure the reliability and stability of heat data's collection and transmission but also improve the flexibility and applicability of heat measuring sensor network,which provided an economical and practical measure for intelligent building's energy data collection,transmission and management.