基于弱磁探测的三相电缆路径快速定位方法

Fast positioning method of three-phase cable path based on weak magnetic field detection

城市地下电缆的快速定位对于城市的安全稳定发展具有重要的意义,然而目前城市内地下电缆探测精度较差,可探测区域较小。针对上述难点问题,该文提出一种基于弱磁探测的三相电缆路径快速定位方法,并推导三相电缆磁场辐射的基本规律,通过测量空间中任意五点的磁场幅值信息,结合粒子群数值迭代计算方法,利用五点定位原理,推算得到地下三相电缆的路径。最后,通过仿真和实验验证该方法的可行性,并进行定位误差分析。该方法对于提高地下电缆探测精度和深埋电缆的探测能力有一定的参考价值。

The rapid positioning of urban underground cables is of great significance for the safe and stable development of the city.However,at present,the detection accuracy of underground cables in the city is poor and the detectable area is small.In view of the above difficult problems,this paper proposes a fast positioning method of three-phase cable path based on weak magnetic detection,and deduces the basic law of three-phase cable magnetic field radiation.By measuring the magnetic field amplitude information of any five points in the space,combined with the particle swarm numerical iterative calculation method and using the five point positioning principle,the path of underground three-phase cable is calculated.Finally,the feasibility of this method is verified by simulation and experiment,and the positioning error is analyzed.This method has a certain reference value for improving the detection accuracy of underground cables and the detection ability of deep buried cables.