基于三维重建的绝缘子爬电距离计算方法
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1. 广东电网有限责任公司 惠州供电局试验研究所惠州516001;2. 北京普锐电子有限公司 技术部北京100070

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TN06

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Insulator’s creepage distance calculation based on three dimensional reconstruction
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1. Test Research Institute of Huizhou Power Supply Bureau, Guangdong Power Grid Co., Ltd., Huizhou 516001, China; 2. Department of Technique, Beijing Purui Electronic Co., Ltd., Beijing 100070, China

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    摘要:

    提出了一种基于三维重建技术计算绝缘子爬电距离的方法。该方法首先在KinectFusion算法框架下获得三维体素网格的有向距离函数(TSDF)数据,然后在对称切割所得的二维截面中提取表示爬电距离的有效轮廓点,最后遍历有效轮廓点计算爬电距离。其创新点在于构建绝缘子的三维模型,将形状不规则的实物转化成体素进行计算处理。实验证明该方法既快又准,平均误差为2.7%,节省了制作人员和测量人员的时间,同时避免了由于结果不准确而进行的反复测量。

    Abstract:

    In this paper, a method of calculating the creepage distance of insulators based on 3D reconstruction technique is proposed. First of all, the TSDF data within the threedimensional voxel grid are obtained by the framework of KinectFusion algorithm. Then the effective contour points representing the creepage distance are extracted in the twodimensional section obtained by symmetrical cutting. Then we traverse the effective contour points to calculate the creepage distance of insulators. The innovation lies in the construction of threedimensional model of the insulator, changing the shape of irregular objects into voxel to compute and process. The experiments show that the method is fast and accurate, and the average error remained at about 2.7%. Validated by experiments, our approach can bring the convenience to the measurement and production. In addition, the repeated measurements due to the inaccurate result are avoided.

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彭刚,李贤靓,钟振鑫.基于三维重建的绝缘子爬电距离计算方法[J].电子测量技术,2017,40(5):159-163

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  • 在线发布日期: 2017-07-13
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