基于Halcon平台的金工实习自动评分系统  

Automatic Scoring System for Metalworking Practice Based on Halcon Platform

作　　者：李东炜[1] 胡昊 龙云[1] Li Dongwei;Hu Hao;Long Yun(School of Mechanical and Electric Engineering,Guangzhou University,Guangzhou 510006,China)

机构地区：[1]广州大学机械与电气工程学院,广州510006

出　　处：《机电工程技术》2025年第2期111-115,共5页Mechanical & Electrical Engineering Technology

基　　金：2022年广州市高等学校教育教学改革项目(2022JXGG043);2022年广州大学教育教学改革项目(教务[2022]41号)。

摘　　要：金工实习作业的评分过程受评价人员主观感受、心理状态的影响很大,因此评分精准度较低。为了减少人为主观评价的影响,设计了能自动给金工实习作业进行评分的系统。该系统包括软件和硬件,硬件主要由MV-CH089-10UM海康工业相机、工业相机、环状光源、双臂拨杆和自动定心平台组成,其可以批量将作业作品有序自动传送至工业相机镜头下,再通过自动定心平台实现精准定位;软件基于Halcon视觉软件二次开发,对硬件获取的作业照片进行图像灰度化、滤波和锐化,再通过基于可变形状的模板匹配给出评分,最终生成便于后续成绩管理的表格。实验结果证明该系统可以真实反映金工实习作业和标准模板的偏差情况,可以对作业进行量化评分,消除人为主观影响,提高评分的客观性。Scoring of metalworking practice assignmentsis greatly influenced by subjective feelings and psychological states of evaluator,which leading to a low accuracy of scoring.In order to reduce the impact of subjective evaluation,a system capable of automatically scoring students′metalworking practice assignments is designed,which consists of both software and hardware.The hardware mainly includes MV-CH089-10UM Hikvision industrial camera,ring light source,double-arm lever,and automatic centering platform.It can automatically and orderly transfer students′assignments to the lens of the industrial camera in batches,and then achieve precise positioning through the automatic centering platform.The software is based on the secondary development of Halcon visual software,which performs image grayscaling,filtering,and sharpening on the assignment photos obtained by the hardware.Scores are then given based on template matching with variable shapes,and a table is finally generated for convenient subsequent performance management.Experimental results prove that this system can truly reflect the deviation between metalworking practice assignments and standard templates,quantify assignment scoring,eliminate subjective human influence,and achieve objective scoring.

关 键 词：HALCON 自动定心平台 图像锐化 基于可变形状的模板匹配 

分 类 号：TP27[自动化与计算机技术—检测技术与自动化装置]