[1] Cheng H S. Exploration on management mode of transmission line anti external damage under new situation[J]. Electronics World, 25-26(2020).

[2] Guo S, Zeng Y H, Zhang J B et al. Application of intelligent monitoring system for external force damage prevention for transmission lines[J]. Guangdong Electric Power, 31, 139-143(2018).

[3] Cai J F, Tang S, Yan T. Electric shock-proof alarming system of crane based on field measurement[J]. Journal of Safety Science and Technology, 6, 177-180(2010).

[4] Nie P F, Cui Y, Yuan H W et al. Power frequency electric field sensor based on the principle of difference conduction current[J]. Measurement & Control Technology, 34, 1-3, 7(2015).

[5] Xu W L. Research and application of safety protection and monitoring technology for on-site operation and maintenance of substation[J]. Telecom World, 26, 164-165(2019).

[6] Liang H G, Xu Y, Zhu X Q et al. Line tree ranging system of transmission line based on millimeter wave radar[J]. Electrical Equipment and Economy, 16-18(2019).

[7] Xiong C Y, Qiao W D, Zhang R X et al. Method for measuring safety distance between suspension arm of crane and running super high voltage transmission line[P].

[8] Chen A, Wang G J, Liao P et al. A safe distance measurement method, computer equipment and storage medium for transmission lines[P].

[9] Cao H N, Wang B, Zou G P et al. Research on adaptability of UAV distance detection based on electromagnetic field distribution of power transmission lines[J]. Zhejiang Electric Power, 38, 65-70(2019).

[10] Zhou N R, Wei J, Tang L J et al. Distance detection method, device and system of changyadong transmission line[P].

[11] Xu Z L, Zeng Y H, Guo S et al. Application of intelligent monitoring system for transmission lines based on image recognition technology[J]. Computer Systems & Applications, 29, 67-72(2020).

[12] Liang Y. Research and development of lane change assistant system based on millimeter wave radar[D](2018).

[13] Chen J C. Research on signal processing in the FMCW radar system[D](2015).

[14] Wu R L, Jin Z, Zhong T J et al. Vehicle ranging system based on millimeter wave radar[J]. Automobile Applied Technology, 33-35(2019).

[15] Guo P, Guo J R, Rong H et al. Research status and test items of mm wave radar[J]. Auto Electric Parts, 33-35(2018).

[16] Xue F, Guo P. The development and application of computer vision inspection technology[J]. Telecom Power Technology, 33, 133-134(2016).

[17] Wang Q, Song W D, Wang J X. The line extraction method and improvement based on Hough transform[J]. Geomatics & Spatial Information Technology, 42, 214-217, 221(2019).

[18] Liu C G. Line extraction and matching based on Hough transformation[D](2009).

[19] Li Y D, Huang H B, Li X P et al. Nighttime lane markings detection based on Canny operator and Hough transform[J]. Science Technology and Engineering, 16, 234-237, 242(2016).

[20] Chen Y, Chen Y, Wang B J et al. Lane line recognition and fitting based on straight line detection[J]. Light Industry Machinery, 38, 62-66(2020).

[21] Ke Z Y. Design of forward collision warning system based on millimeter wave radar[D](2014).

[22] Wang Y G, Pan X X. Application of robust Kalman filtering algorithm based on Markov distance in integrated navigation[J]. Beijing Surveying and Mapping, 34, 1810-1814(2020).

[23] Guo R X, Yi M. Deformation monitoring data processing based on anti differential Kalman filter[J]. Sichuan Building Materials, 43, 54-55, 68(2017).

[24] Sheng R J, Wu B, Gao C F et al. Research on precise point positioning based on robust Kalman filter[M]. Proceedings of the 7th National Symposium on Traffic Engineering Survey(2015).