基于北斗双重差分的输电线路杆塔位移分析方法

Displacement analysis method of transmission line poles and tower based on Beidou double difference

中国西南地区的输电线路地理分布广泛,所处区域地质灾害频发,易造成输电线路杆塔位移,甚至倒塌。为解决输电线路杆塔位移监测难度大、精度低的问题,提出了一种基于北斗双重差分的输电线路杆塔位移分析方法。通过北斗位移监测终端进行输电线路杆塔初始定位;采用地面增强站对输电线路杆塔位移信息进行差分校准,在此基础上,采用双重差分法对输电线路杆塔四个塔基的北斗位移监测终端进行综合位移分析。在某地区进行了模拟试验,位移识别准确率为99.1%,位移识别精度为6.29 mm。其模拟试验结果表明,文中所提方法可准确识别输电线路杆塔位移情况。

The transmission lines in Southwest China are widely distributed,and the regional geological disasters are frequent,which is easy to cause the displacement and even collapse of transmission lines.In order to solve the problem of difficult and low accuracy of transmission line poles and tower displacement monitoring,a transmission line tower displacement analysis method based on Beidou double difference is proposed.The initial positioning of transmission line tower is carried out through Beidou displacement monitoring terminal;The ground enhancement station is used to calibrate the displacement information of the transmission line poles and tower.On this basis,the double difference method is used to analyze the comprehensive displacement of the Beidou displacement monitoring terminal of the four tower bases of the transmission line poles and tower.A simulation test is carried out in an area.The displacement recognition accuracy is 99.1%and 6.29 mm.The simulation test results show that the proposed method can accurately identify the displacement of transmission line poles and tower.