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带孔工件的在线智能检测系统
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作者 刘正琼 周文霞 +2 位作者 凌琳 万鹏 李学飞 《机械科学与技术》 CSCD 北大核心 2019年第10期1561-1568,共8页
针对工业生产中用传统方式对带孔工件检测的误差大、效率低等问题,提出了一种基于机器视觉的带孔工件在线智能检测系统。该系统应用了由粗到精的智能检测网络,采用了改进的霍夫变换算法及连通域标记算法,实现了对工件的孔洞完整性检测... 针对工业生产中用传统方式对带孔工件检测的误差大、效率低等问题,提出了一种基于机器视觉的带孔工件在线智能检测系统。该系统应用了由粗到精的智能检测网络,采用了改进的霍夫变换算法及连通域标记算法,实现了对工件的孔洞完整性检测、工件制式合格性检测以及核心孔的孔径尺寸测量。通过实验测试,整个检测过程约10 s,最大测量偏差不超过0.5pixel,能准确完成对工件测量合格性的判断,达到了生产线上实时精密、非接触、稳定性高的智能化检测要求。 展开更多
关键词 机器视觉 带孔工件 智能检测 霍夫变换
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Analysis on Matters Needing Attention in HVAC Design of Commercial Complex
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作者 LUORui wanpeng 《外文科技期刊数据库(文摘版)工程技术》 2022年第3期043-046,共4页
HVAC design has become an important index to measure people's living comfort and an important system in the process of urban development. Therefore, the overall planning of the system should be better completed on... HVAC design has become an important index to measure people's living comfort and an important system in the process of urban development. Therefore, the overall planning of the system should be better completed on the basis of overall construction. For the construction of relevant commercial complexes, attention should be paid to the design requirements of HVAC in the actual development process, and comprehensive arrangements should be made for the design systems of different blocks. For better development, comprehensive planning is carried out according to the actual development requirements, so as to meet the actual development requirements of HVAC design to the maximum extent and improve the related construction effect to the maximum extent. 展开更多
关键词 HVAC DESIGN frequently asked questions commercial complex
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