认知无线电在矿井无线传感器网络系统中的应用

摘要

为了有效地实现矿井环境监测,将认知无线电(CR)技术和无线传感器网络(WSNs)技术相结合,提出了CR-WSNs新概念.分析了煤矿井下特殊的工作环境,介绍了适用于矿井的CR-WSNs监测系统结构、节点的硬件组成和CR-WSNs模块间的通信,给出了简单的性能测试方案.实际测试结果表明:CR-WSNs比普通WSNs具有更强的抗干扰性能.%In order to realize environmental monitoring of coalmine effectively, a concept called cognitive radio-wireless sensor networks ( CR-WSNs) is proposed combining CR technology with WSNs technology. Special working environment of the coalmine is analysed, and the structure of CR-WSNs system, the hardware of node and the communication between each module are introduced. A simple test program is given. The actual test result shows that the CR-WSNs has much better ability to resist interference than ordinary WSNs.