摘要
文章针对目前多数射频监测技术只适合短距离的缺点,提出一种射频网络与GPRS相结合的远距离无线监测系统设计方案,重点介绍系统软硬件的设计,以ARM7芯片S3C44B0X为核心构建基站,以51系列STC89C52RC单片机为核心构建射频传感网络采集节点,各节点与基站的通信由NRF905射频收发模块来实现。文章还对射频传感网络的拓扑结构和通信协议进行了设计,成功解决了射频传感网络中的冲突检测、隐藏节点等问题,保证了系统的可靠性。最后进行了通信测试实验,证明了方案的可行性。
For the disadvantage of short range application of most RF monitoring technology, a design scheme of remote radio monitoring system is presented in the paper, based on RF sensor network and GPRS. Software and hardware design solutions for the system are described emphatically. The base station is built up based on ARM7-S3C44BOX chip,and data acquisition nodes of RF sensor network are built up based on 51MCU-STC89C52RC. Communication between nodes and base station is realized by NRF905 RF modules. Design of topology and communication protocols are also addressed so as to solve the problems of conflict detection, hidden nod in RF sensor network. Therefore, the reliability of the system is ensured. Test experiment indicates that this scheme of system is feasible.
出处
《空间电子技术》
2011年第4期18-21,40,共5页
Space Electronic Technology
