基于WSN的宽量程射频功率检测系统设计  

Design of wide-range RF power detection system based on WSN

作　　者：姚达雯 周国平[1] 封维忠[1] 黄峰[1] 王鑫鑫[1] 

机构地区：[1]南京林业大学信息科学与技术学院,江苏南京210037

出　　处：《电子技术应用》2014年第6期133-136,共4页Application of Electronic Technique

摘　　要：介绍了一种基于无线传感器网络(WSN)的多点宽量程射频功率检测系统。传感器节点由微控制器CC2430作为主控芯片,由真有效值功率检波芯片AD8362及数字衰减器HMC274作为功率检测探头,以实现宽量程功率采集。通过ZigBee无线技术和GPRS通信技术实现对各节点射频功率的定时测量、存储和显示。经过对2.4 GHz射频信号的实验测试,结果表明传感器节点测量范围达到-50 dB^+40 dB,误差在0.5%以内,系统工作稳定,通信效果理想。A multipoint wide-range RF power detection system based on WSN is introduced.The sensor nodes are composed of CC2430 as MCU and TRMS power detection chip AD8362 with digital attenuator HMC274 as power probe,which realizes the wide-range power collection. By using the ZigBee wireless technology and GPRS network,the RF power value of each node is timing collected,stored and displayed. After the experiment of 2.4 GHz RF signal,the results show that the measurement range of power probe has reached from -50dB~＋40dB, and the error is within 0.5%.The system can work stablily with an ideal communication effect.

关 键 词：射频功率 CC2430 AD8362 ZIGBEE GPRS 宽量程 

分 类 号：TN92[电子电信—通信与信息系统]