基于C-V模型的线束端子断面测量系统设计

汽车线束端子压接质量的检测是保证汽车安全性、可靠性,提高汽车整车质量的关键因素之一,针对传统压接端子质量检测主要依靠检测人员目测判断,不仅精准度低而且检测质量和分析工作非常耗时费力,提出基于偏微分方程的线束端子断面测量系统的设计,采用Mumford-Shah模型的简化C-V模型,通过梯度下降法极小化能量函数来控制曲线进而实现线束端子断面轮廓的自动分割.实验结果表明,本系统的开发设计实现了显微图像分析的线束端子压接参数的测量和质量分析报表的定制输出,不仅减轻了检测人员的劳动强度,而且提高了工作效率.

Design of Harness Terminals Cross-Section Measurement System Based on C-V Model

Quality detection of automotive wiring harness is one of the key factors to improve the quality and guarantee security and reliability of automotive.The traditional quality detection mainly uses staff with the eyes to judge the appearance quality of crimping section,which is low precision and very time-consuming.The harness terminal section measurement system based on partial differential equations is proposed.Using C-V simplified segmentation model,automatic segmentation of harness terminal section is achieved by the gradient descent method minimizing the energy function to control the curve.Experiment results show that the system realizes the automatic recognition,analysis and report output of the quality of harness crimping terminal.It not only reduces the labor intensity of testing personnel,but also has a great practical significance for the efficiency and improvement of detection technology.