基于大数据的导线悬垂面脱冰跳跃高速摄影测量方法研究

针对输电线路在冬季覆冰期间导线脱冰跳跃时的精确测量需求，研究了一种基于大数据的导线悬垂面摄影测量方法，讨论了基于此技术方案的高速摄影性能及主要算法及便携式脱冰跳跃摄影测量仪的制备方法。根据导线脱冰跳跃时悬垂面的摄影测量数学模型和数据采集模型，通过数据的有效帧的梳状区域连续判定法实现了数据的有效梳理，获得了有效的数据。实验结果表明，基于大数据的摄影测量方法，通过大量数据对本文提出的方法进行学习和训练，得到高速摄影测量方法在悬垂面摄影测量的精度与影像在悬垂面处的空间分辨率基本相当，能很好地捕捉导线在脱冰跳跃情况下的舞动状况，对于导线脱冰跳跃和雷击这类随机短促突发事件的高速影像采集的情况能够得到很好地应用。

Research on High Speed Photogrammetry of Overhanging Surface for Ice Shedding of Conductor Based on Big Data

For precise measurement of the wire de-icing jump of transmission line during winter icing, A research method for photogrammetry of wire overhanging surface based on big data was researched, and the high-speed photographic performance and main algorithms based on this technical solution were discussed, as well as the preparation method of the portable deicing jumping photogrammeter. According to the photogrammetric mathematical model and data acquisition model of the overhanging surface when the wire was de-iced and jumped, the combing region continuous determination method of the effective frames of the data was used to effectively comb the data and obtain valid data. The experimental results show that the photogrammetry method based on big data learns and trains the method proposed in this paper through a large amount of data. The accuracy of the photogrammetry on the overhang surface obtained by the high-speed photogrammetry method is basically equivalent to the spatial resolution of the image on the overhang surface. It can well capture the galloping condition of the wire under the de-icing jump. It can be applied well to the high-speed image acquisition of random short-term sudden events such as the wire de-icing jump and lightning strike.