电气接线图的矢量化技术研究  

Research on vectorization technology for electrical wiring diagrams

作　　者：张勇 宋爱波[2] 苏猛猛 王天予 王清未 陈锐 ZHANG Yong;SONG Aibo;SU Mengmeng;WANG Tianyu;WANG Qingwei;CHEN Rui(Department of Power Dispatch Control Center,State Grid Corporation of China,Beijing 100032,China;School of Computer Science and Engineering,Southeast University,Nanjing 214135,China)

机构地区：[1]国家电网有限公司华北分部调度控制中心,北京100032 [2]东南大学计算机科学与工程学院,南京214135

出　　处：《浙江电力》2024年第8期28-35,共8页Zhejiang Electric Power

基　　金：国家自然科学基金(62061146001);国家电网科技部项目(5108202340042A-1-1-ZN)。

摘　　要：电气接线图是表示电气设备的位置、描述其接线与配线方式的工程图纸,需要转换成XML文件格式以用于智能电网系统调度管理,这一转换过程被称为矢量化。针对人工矢量化效率低、费时费力的问题,提出了一种电气接线图矢量化技术解决方法。首先给出了融合注意力机制的YOLOv3电气图元检测方法,实现了对各类电气图元的精准识别与定位;然后提出基于多尺度特征提取的文本区域检测算法,实现对图纸中电气文本标注区域的定位,再结合CRNN模型对其内容进行识别;最后提出基于模板匹配的矢量化成图策略,以图元组为单位,对图纸中电气元素间的关联关系进行分析。该方法已有实际部署运行案例,能高效、准确完成电气接线图纸的矢量化工作,满足电力系统的应用需求。Electrical wiring diagrams,which represent the positions of electrical equipment and describe their wir⁃ing and cabling methods,need to be converted into XML for smart grid system scheduling and management.This conversion process is known as vectorization.To address the inefficiencies and time-consuming nature of manual vec⁃torization,this paper proposes a solution for vectorizing electrical wiring diagrams.First,the paper introduces an at⁃tention mechanism-enhanced YOLOv3 method for precise recognition and localization of graphic elements in electri⁃cal wiring diagrams.Next,it proposes a text region detection algorithm based on multi-scale feature extraction to lo⁃cate electrical text annotation areas on the diagrams,and uses a CRNN model to recognize their content.Finally,the paper presents a vectorization strategy based on template matching,which analyzes the relationships between electrical elements on the diagrams at the graphic element group level.This method has been practically deployed and can efficiently and accurately complete the vectorization of electrical wiring diagrams,meeting the application needs of power systems.

关 键 词：电气接线图 矢量化 目标检测 文本识别 模板匹配 

分 类 号：TM645[电气工程—电力系统及自动化]