【作者】 曹智文；

【导师】 钟飞；

【作者基本信息】 湖北工业大学 ， 测试计量技术与仪器， 2012， 硕士

【摘要】 随着智能化和自动化在中国制造业内的深入，企业不仅对生产过程愈加重视，而且对产品质量的要求也更加严格。目前，磁线圈的绕线及其质量评价过程基本上是由手工完成，效率和可靠性低下，生产成本高，阻碍了企业的发展。针对这种情况，本论文研究了一种基于机器视觉和结构光传感器的非接触式测量系统，该系统能快速、高效、稳定地实现线圈绕制过程中相关尺寸的在线测量。本论文的研究内容概括如下：一、论文介绍了测量系统的软硬件构成，分析了系统的技术路线，并提出了在研究过程中需要解决的问题，如视觉系统标定、结构光传感器设计以及图像处理方法等，为系统设计打下理论基础。二、论文研究了视觉系统标定方法，并用非线性模型相机的线性标定方法对试验相机进行标定；研究了激光三角原理，分析了结构光传感器的数学模型，并针对实验环境设计了结构光传感器；研究了激光条纹的图像处理方法，在现有方法的基础上，针对实验中所得光条的特征，设计了相应的光条中心提取法。三、论文介绍了测量实验过程，通过分析实验数据计算出系统的精度，并得出结论：该系统的测量精度能满足要求。论文实现了磁线圈的绕线监控技术的基础研究，今后的工作是进一步优化光条中心提取算法，改善系统硬件结构，提高系统的可靠性和抗干扰能力，以真正实现磁线圈绕线的自动监测，适应将来更复杂的检测测量环境。更多还原

【Abstract】 As the automatic and intelligent level has being enhanced in Chinesemanufacturing industry, enterprise pay more and more attention not only to theproduction process, but also to the quality of products. Nowadays the coiling process ofmagnetic coils is monitored by manual work, which is of low efficiency and lowreliability and high production costs. And it goes against the development of theenterprise obviously. According to this, this paper studies a non-contact measuringsystem that based on machine vision and the structure light sensor. The measuringsystem can do online size measurement rapidly, efficiently and stably, and realize theautomation of the coiling process in theory. The main contents of this thesis aresummarized as follow:1．It introduces the software and hardware composition of the measurementsystem in this thesis. And the technical route has been analyzed, which contains theproblems need to be solved over the course of the study, such as the calibration of visualsystem, the structured light sensor design and the image processing method.2．The thesis studies the calibration method of the visual system. We calibrate thecamera by using Zhang’s linear calibration method for the nonlinear model camera.Based on the principle of laser triangulation, the mathematical model of structured lightsensor has been analyzed, and a structured light sensor has been designed for theexperimental environment. The image processing method for laser beam also has beenstudied. According to the characteristics of the laser beam from experiment, the centerextraction of the laser beam has been designed.3．This thesis introduces the experimental process and analyzes the experimentaldata, from which we get the reasonable measurement accuracy of the system. And theconclusion is that the system can meet the requirement of the measurement accuracy.However, the thesis has just finished the basic technology of the magnetic coilcoiling monitoring research. And we need to further improve the system to realize theautomatic monitoring of the magnetic coil coiling process and adapt to complexmeasurement environment in future.更多还原