【摘要】 在用无线传感器网络对地震区山地灾害进行监测的过程中,定位起到了重要的作用;通过对无线信号衰减模型的研究,在RSSI测距方法存在误差的基础上,提出了一种基于ERSS和RSSI校验相结合的EVRSSI三维定位算法;该算法对硬件要求不高,能够适应地震区山地灾害监测环境的要求,在定位精度上也有了一定的提高;模拟实验表明本算法的定位误差为0.26m,在允许存在较小误差范围内可以应用于地震区山地灾害监测的定位中。更多还原

【Abstract】 In the process of mountain hazards monitoring for earthquake area using wireless sensor networks,location has played an important role.Through the study of radio signal attenuation model,based on the existence of error in the distance measurement of RSSI,a 3D locating algorithm based on combination of ERSS and RSSI-verify was proposed.The algorithm is low for hardware required,it can adapt to the requirements of environmental in mountain hazards monitoring for earthquake area,and also improved to a certain extent in the localization precision.The simulation experiment show that location error of the algorithm is 0.26m,which exists minor error able to apply to location in mountain hazards monitoring for earthquake area.更多还原