基于DPMR的无线传感器网络节点设计  

Design of wireless sensor network node based on DPMR

作　　者：贾思强[1] 朱隽 高翔[1] 陆起涌[1,3] 

机构地区：[1]复旦大学电子工程系,上海200433 [2]江苏省无锡汽车工程中等专业学校,江苏无锡214153 [3]复旦大学无锡研究院,江苏无锡214131

出　　处：《实验技术与管理》2012年第7期54-59,共6页Experimental Technology and Management

基　　金：国家高技术研究发展计划("863"项目)(2011AA100701)

摘　　要：利用窄带通信(frequency divided multiple access,FDMA)技术在远距离通信上的优势,设计了基于DPMR(digital private mobile radio)数字对讲无线通信协议的无线传感器节点。采用C8051F120为主控微处理器,DPMR通信部分选用数字基带处理器SCT3252F及士康公司SRT3500系列套片组成的射频单元,软件上可实现多点分时上传传感器数据。节点最大发射功率为4W,接收灵敏度小于0.2μV,在城市较空旷环境下实测有效通信距离可达3.4km,适合于较大范围内无线传感器网络的应用需要。Taking the advantage of FDMA（frequency divided multiple access） narrow-band communication on long transmission distance,a wireless sensor network node system is developed based on DPMR（digital private mobile radio） protocol.The system takes C8051F120 as the core MCU.The DPMR wireless communication unit is composed of base band processor SCT3252F and RF unit using SRT3500 series chips.Each node in network can upload sensors data to the sink in different time.The design achievement shows that node maximum transmit power can be 4W,receiver sensitivity less than 0.2μV and effective communication distance between nodes measured outdoor 3.4km,which make it suitable for applications in a wide range of wireless sensor network.

关 键 词：无线传感器网络 网络节点 DPMR C8051F120 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]