基于Mobile GIS的智能巡检系统的研究

Research on Intelligent Patrol System Based on Mobile GIS

无人机通常使用电子罗盘测向,然而在应用于电力巡线领域时,由于电力线路有强磁干扰,电子罗盘本身通过测量地球磁场来测向,线路的磁干扰会严重影响电子罗盘的测向结果,给无人机带来极大的安全隐患。Mobile GIS接收机可接收卫星的载波相位信息,通过双天线Mobile GIS的基线长度约束和载波相位信息,可精确解算出载体的姿态信息,且不受电力线路磁干扰。论文提出一种方案,通过双天线Mobile GIS的测向算法来给无人机提供精准的航向信息,以满足无人机电力巡线的智能巡检要求。仿真与实验结果表明,所提出的方案能够较好地实现无人机航向测量需求。

The UAV usually uses electronic compass,however in the application in power line patrol areas,due to the power lines with strong magnetic interference,the electronic compass itself by measuring the earth’s magnetic field to the magnetic interference line direction,which will seriously affect the estimation results of the electronic compass,great security risks to uav are brought. The Mobile GIS receiver can receive the carrier phase information of the satellite. The carrier attitude information can be accurately calculated by the baseline length constraint of the dual antenna Mobile GIS and the carrier phase information,and the magnetic interference is not affected by the power line. In this paper,a scheme is proposed to provide accurate heading information for unmanned aerial vehicles(UAV)by the direction finding algorithm of dual antenna Mobile GIS,so as to meet the requirements of intelligent patrol inspection for unmanned aerial vehicle(UAV)power line inspection. Simulation and experimental results show that the proposed scheme can better realize the UAV heading measurement requirements.