基于视觉引导的电连接器接触件保持力检测系统  

Detecting System of Contact Retention Force of Electrical Connector Based on Visual Guidance

作　　者：韩俊文 杨昊博 周炜博 朱文硕 梁军生[1,2] HAN Junwen;YANG haobo;ZHOU Weibo;ZHU Wenshuo;LIANG Junsheng(Key Laboratory for Micro/Nano Technology and System of Liaoning Province,Dalian University of Technology,Dalian 116024,China;Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]大连理工大学辽宁省微纳米技术及系统重点实验室,辽宁大连116024 [2]大连理工大学精密与特种加工技术教育部重点实验室,辽宁大连116024

出　　处：《仪表技术与传感器》2023年第8期56-60,共5页Instrument Technique and Sensor

基　　金：上海市科技攻关计划项目(YDZX20223100004005);中国商飞创新基金(COMAC-SFGS-2019-4244)。

摘　　要：针对航空电连接器接触件保持力人工测量劳动强度大、效率低,而且会出现误检、漏检的问题,设计了一套基于视觉引导的电连接器接触件保持力检测系统。采用视觉系统对航空电连接器进行拍照,对采集到的图片进行图像滤波,阈值处理、圆形拟合、边缘检测等处理得到接触件的位置信息和编号。结合QT和OpenCV软件设计,实现了人机交互和检测结果的可视化。分别采用插针和插孔用于试验,试验结果显示接触件孔位识别坐标与真实坐标距离检测精度优于0.1 mm,编号匹配结果与实际编号一致,可以满足保持力自动化检测的需求。Aiming at the problem of high labor intensity and low efficiency of manual measurement of contact force of avionics connectors,and the problem of false detection and leakage,a detecting system of contact retention force of electrical connector based on visual guidance was designed.The vision system was used to take pictures of the avionics connectors,and the collected pictures were processed by image filtering,threshold processing,circle fitting and edge detection to get the position information and number of the contact parts.Combined with QT and OpenCV software design,human-computer interaction and visualization of inspection results were achieved.The pins and jacks were used for the test respectively,and the test results show that the detection accuracy of the distance between the identification coordinates of the contact hole and the real coordinates is better than 0.1 mm,and the number matching result is consistent with the actual number,which can meet the demand of automatic detection of retention force.

关 键 词：航空电连接器 接触件 机器视觉 轮廓查找 SOBEL算子 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]