基于无线网络传感器的定位技术研究

Locating technology research based on wireless network sensor

针对基于信号强度的无线传感器网络定位精度易受环境影响的问题,通过搭建无线传感器网络进行的实验,研究了改进的定位算法。使用CC2430无线模块作为节点收发装置,基于ZigBee无线传感器网络协议,搭建无线传感器网络平台进行定位系统的开发和改进算法的测试。由于无线信号强度误差的复杂性,采取逐阶改进的方法,通过各阶段的实验进行误差分析并改进定位算法。在搭建的无线传感器网络平台上测试的结果表明,改进的定位算法达到预期的效果,定位精度明显提高,具有一定的应用价值。

In order to solve the problem that wireless sensor network positioning accuracy is sensitive to the environmental impact,we researched on the localization algorithm to improve positioning accuracy through the experiment on a wireless sensor network.The system use CC2430 wireless module as node transceiver,build a wireless sensor network platform based on ZigBee wireless sensor network protocol for positioning system development and the improved algorithm.Because of the complexity of the wireless signal strength error,we improve the localization algorithm one by one stage improvement through the experimental error analysis.The test results in wireless sensor network platform show that precision obviously improved and the improvement wireless sensor network localization algorithm is worthy of using and achieved the anticipated effect.