於鐵路電氣化系統中，電險桿扮演著承載懸掛線、落線器等電氣化設備之重要作用。電線桿位置的偏移影響著受電弓自接觸線至列車的電能傳輸。因此，本研究提出一個方法作為電線桿位移的監測系統，以減少因電險桿偏移所導致鐵路電氣化系統失能。利用車載光達掃描系統於台灣北部之新北市與宜蘭縣兩處分別蒐集兩個不同時間點的資料。其結果顯示，80%的電線桿可被成功檢測。此外，新北市與宜蘭縣之電險桿的平均位移角度分別為1.1° 與1.3°，其方根誤差則分別為1.2°與1.6°。

Poles play an essential role in supporting existing objects in a railway electrification system (e.g., catenaries, droppers, etc.).The disposition poles could affect the electrical energy transmitted from the contact wires to the trains through pantographs. Therefore, this study proposed a systematic method for monitoring the railway electrification poles to reduce the possibility of contact loss due to the pole disposition. Two different locations of northern Taiwan, in New Taipei City and Yilan County, were measured using Mobile Laser Scanner (MLS) at two different acquisition times. The result of pole detections showed that more than 80% of poles had been successfully detected. The displacement angle of the poles that were successfully detected was then estimated. The average displacement angle values computed from the proposed method are 1.1ᵒ and 1.3ᵒ, respectively, in New Taipei City and Yilan County. Root Mean Square Error (RMSE) were used to to evaluate the pole displacement angles. The values of RMSE were 1.2ᵒ in New Taipei City, and 1.6ᵒ in Yilan County respectively

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