变电站应用实景复制技术建模和网络安全监控  

Substation Modelling and Network Security Monitoring Based on Scene Replication Technology

作　　者：王小虎 郭广鑫 董佳涵 王磊[2] 曹灿 WANG Xiaohu;Guo Guangxin;DONG Jiahan;WANG Lei;CAO Can(State Grid Beijing Electric Power Research Institute,Beijing 100075,China;State Grid Beijing Electric Power Company,Beijing 100031,China;Anhui Jiyuan Software Co.,Ltd.,Hefei 230088,China)

机构地区：[1]国网北京市电力公司电力科学研究院,北京100075 [2]国网北京市电力公司,北京100031 [3]安徽继远软件有限公司,安徽合肥230088

出　　处：《中国电力》2021年第11期221-228,共8页Electric Power

摘　　要：随着物联网技术和三维激光技术的快速发展,针对国网公司对电网设备安全运行的智能化需求,提出了一种实景复制技术。采用全局和局部点云特征表示的深度网络架构的新型变电站物联网安全监控平台,网络直接将原始点云作为网络的输入数据而未进行体素化或渲染操作。针对电力设备对象,通过提取点云数据局部几何主导子空间来实现快速数据处理,提高数据质量并估算点云法矢,自动识别输变电物联网安全场景中的重复结构,实现数据增强和结构建模。该算法可以使得模型与原始点云拟合误差最小,从而快速得到电力物联网设备对象的三维模型,最终实现输变电物联网安全场景的智能理解和高质量重构。在此基础上,建立了变电站物联网安全监控平台提升了设备的安全性,对变电站进行了仿真与建模、可视化分析和管理等,有效地保障了变电站的物联网安全监控能力。In view of the intelligent demand of the SGCC for safety operation of power grid equipment,a real scene reproduction technology is proposed.A novel substation safety monitoring platform is constructed using deep network architecture displayed with global and local point cloud features.The internet of things(IOT)network directly uses the original point cloud as the input data of the network without the voxel or rendering operation.For power equipment objects,the local geometric dominant subspace of point cloud data is extracted to realize fast data processing,improve the data quality and estimate the point cloud normal vector.The repetition structures in the IOT safety scenario are automatically recognized to realize data augmentation and structure modelling.The proposed algorithm can minimize the fitting error between the model and the original point cloud,so that the three-dimensional model of the power equipment objects can be obtained quickly,and the intelligent understanding and high quality reconstruction of the large scene of transmission and transformation can be realized finally.On this basis,a substation IOT security monitoring platform is established,which can realize accurate modeling and simulation,visual analysis,intelligent management of substations,effectively enhancing the IOT safety monitoring capability of substations.

关 键 词：三维建模 物联网 点云 重复结构检测 安全监控 变电站重建 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置] TM63[自动化与计算机技术—控制科学与工程]