机器视觉识别物料安息角方法  

A Method for Identifying Material Rest Angle by Machine Vision

作　　者：温超 李冰[1] 邵来 Wen Chao;Li Bing;Shao Lai(School of Mechanical and Traffic Engineering,Guangxi University of Science and Technology,Liuzhou 545006,China)

机构地区：[1]广西科技大学机械与交通工程学院,广西柳州545006

出　　处：《机械设计与制造》2023年第9期89-92,共4页Machinery Design & Manufacture

基　　金：广西自然科学基金(2018GXNSFBA281195);柳州科学研究与技术开发计划项目(2017BC20201)。

摘　　要：安息角是散料在堆放时能够保持自然稳定状态的最大角度(单边对地面的角度),也是一个重要的宏观参数(用以表征散装物料的特性行为),现阶段安息角的测量仍然在物理实验室中完成,未能在真实工况下对于自然物料形成的料堆进行测量,并且测量方式较为传统,存在较大误差。通过利用机器视觉技术设计一套视觉识别安息角的方法,包括图像采集和信息算法处理,解决人工测量安息角问题实现智能测量,将利用机器视觉和图像处理技术,通过Matlab软件编程获得图像轮廓信息并测得安息角,测量结果表明该方法具有良好的通用性和实用价值,也可快速获取物料安息角,按照误差参数比对,误差均在3%之内,符合工程项目的误差要求。Rest Angle is bulk material in the stack to maintain stability of the natural state of maximum Angle(unilateral)the Angle of the ground,is also an important macro parameters(to represent the characteristics of bulk material behavior),rest Angle measurement at the present stage is still done in the physics lab,not in the real working conditions for the natural material forming windrow measurement,and a traditional measuring way,there is a big error.In this paper,by using machine vision technology to design a set of repose Angle of visual identification methods,including the algorithms of image acquisition and information processing,solve the problem of manual measuring rest Angle to realize intelligent measurement,the use of machine vision and image processing technology,image contour information obtained from Matlab software programming,and rest Angle measurement,the measurement results show that the method has good versatility and practical value,also can quickly get material rest Angle,according to the alignment error parameters,the errors are within 3%,conform to the requirements of the error of the project.

关 键 词：机器视觉 物料堆 安息角 图像处理 

分 类 号：TH16[机械工程—机械制造及自动化] TP391[自动化与计算机技术—计算机应用技术]