| 基于"准双目"立体视觉的球罐多层焊缝坡口轮廓检测 |
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| 引用本文： | 王军波,陈强,孙振国. 基于"准双目"立体视觉的球罐多层焊缝坡口轮廓检测[J]. 机械工程学报, 2005, 41(10): 84-87 |
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| 作者姓名： | 王军波 陈强 孙振国 |
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| 作者单位： | 中国科学院电子学研究所传感技术国家重点实验室,北京,100080;清华大学机械工程系,北京,100084 |
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| 基金项目： | 国家863高科技(863-512-9913-02)和国家自然科学基金(60302003)资助项目. |
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| 摘 要： | 焊缝坡口的填充情况是球罐纵缝多层焊接规范参数自动规划和调整的一个重要依据.结合球罐纵缝自动焊接焊枪摆动的特点,提出了一种基于单摄像机运动的"准双目"立体视觉方法,用于检测球罐多层焊接时焊缝坡口的填充情况,从而避免了双目立体视觉公共视场要求和摄像机位置重叠之间的矛盾.由此开发了提取用于表征坡口填充情况的焊缝坡口轮廓参数的计算方法.所检测的轮廓参数精度小于0.5 mm,为球罐多层焊接自动化提供了条件.
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| 关 键 词： | " 准双目" 立体视觉 单摄像机运动 焊缝坡口轮廓 检测 球罐多层焊 |
| 修稿时间： | 2004-12-14 |
MULTI-PASS GROOVE PROFILE DETECTION FOR SPHERICAL TANK WELDING BASED ON QUASI DOUBLE CAMERAS STEREOVISION SENSOR |
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| Wang Junbo,Chen Qiang,Sun Zhenguo. MULTI-PASS GROOVE PROFILE DETECTION FOR SPHERICAL TANK WELDING BASED ON QUASI DOUBLE CAMERAS STEREOVISION SENSOR[J]. Chinese Journal of Mechanical Engineering, 2005, 41(10): 84-87 |
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| Authors: | Wang Junbo Chen Qiang Sun Zhenguo |
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| Abstract: | Filling of weld groove is a very important gist for welding parameters programming and regulating during longitude seam welding of spherical tank. According to the weld torch swing characteristic in multi-pass welding of spherical tank, a "quasi double cameras" stereovision (QDCS) sensor with a moving camera has been set up to detect the weld profile so as to avoid the conflict between public visual filled with double cameras sensors and the overlap of camera positions. Based on that, a particular algorithm has been developed to detect weld profile which could feature the filling of weld groove. The detection precision is no more than 0.5 mm, which could provide the basis for multi-pass welding control. |
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| Keywords: | Quasi double cameras stereovision sensor One moving camera Weld profile Detection Multi-pass welding for spherical tank |
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