Online Visual Detection System for Head Warping and Lower Buckling of Hot-Rolled Rough Slab
The real-time measurement of head warping and lower buckling during the production process of rough-rolled slabs has long been a persistent technical problem at the production site. Currently, the detection of head warping and lower buckling in the production site relies on workers’ operational expe...
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| Language: | English |
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MDPI AG
2025-03-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/25/6/1662 |
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| author | Shitao Ge Yan Peng Jianliang Sun Licheng Han |
| author_facet | Shitao Ge Yan Peng Jianliang Sun Licheng Han |
| author_sort | Shitao Ge |
| collection | DOAJ |
| description | The real-time measurement of head warping and lower buckling during the production process of rough-rolled slabs has long been a persistent technical problem at the production site. Currently, the detection of head warping and lower buckling in the production site relies on workers’ operational experience for manual observation or measurement during machine downtime. In this paper, an online real-time detection system for the head warping and lower buckling of rough-rolled slab in hot continuous rolling based on visual detection is proposed, and a cascade filter based on morphological processing is developed, which can effectively remove the noise in the field environment and smooth the edge profile of the slab. A precise measurement and analysis method based on points and lines is proposed, which determines the precise values by subtracting the distance from the corner-point at the top of slab to the straight line at its lower edge from that between its upper and lower edges. The detection system in industrial applications has demonstrated high accuracy: detection error ≤ ±5 mm, type recognition rate ≥ 99%. Meeting on-site industrial production requirements. |
| format | Article |
| id | doaj-art-45c1a2b1a9cd4076891c013b5aff8a48 |
| institution | DOAJ |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-45c1a2b1a9cd4076891c013b5aff8a482025-08-20T02:43:07ZengMDPI AGSensors1424-82202025-03-01256166210.3390/s25061662Online Visual Detection System for Head Warping and Lower Buckling of Hot-Rolled Rough SlabShitao Ge0Yan Peng1Jianliang Sun2Licheng Han3National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University, Qinhuangdao 066004, ChinaNational Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University, Qinhuangdao 066004, ChinaNational Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University, Qinhuangdao 066004, ChinaNational Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University, Qinhuangdao 066004, ChinaThe real-time measurement of head warping and lower buckling during the production process of rough-rolled slabs has long been a persistent technical problem at the production site. Currently, the detection of head warping and lower buckling in the production site relies on workers’ operational experience for manual observation or measurement during machine downtime. In this paper, an online real-time detection system for the head warping and lower buckling of rough-rolled slab in hot continuous rolling based on visual detection is proposed, and a cascade filter based on morphological processing is developed, which can effectively remove the noise in the field environment and smooth the edge profile of the slab. A precise measurement and analysis method based on points and lines is proposed, which determines the precise values by subtracting the distance from the corner-point at the top of slab to the straight line at its lower edge from that between its upper and lower edges. The detection system in industrial applications has demonstrated high accuracy: detection error ≤ ±5 mm, type recognition rate ≥ 99%. Meeting on-site industrial production requirements.https://www.mdpi.com/1424-8220/25/6/1662rough-rolled slabvisual inspectioncascaded filterCanny’s algorithmonline real-time detection |
| spellingShingle | Shitao Ge Yan Peng Jianliang Sun Licheng Han Online Visual Detection System for Head Warping and Lower Buckling of Hot-Rolled Rough Slab Sensors rough-rolled slab visual inspection cascaded filter Canny’s algorithm online real-time detection |
| title | Online Visual Detection System for Head Warping and Lower Buckling of Hot-Rolled Rough Slab |
| title_full | Online Visual Detection System for Head Warping and Lower Buckling of Hot-Rolled Rough Slab |
| title_fullStr | Online Visual Detection System for Head Warping and Lower Buckling of Hot-Rolled Rough Slab |
| title_full_unstemmed | Online Visual Detection System for Head Warping and Lower Buckling of Hot-Rolled Rough Slab |
| title_short | Online Visual Detection System for Head Warping and Lower Buckling of Hot-Rolled Rough Slab |
| title_sort | online visual detection system for head warping and lower buckling of hot rolled rough slab |
| topic | rough-rolled slab visual inspection cascaded filter Canny’s algorithm online real-time detection |
| url | https://www.mdpi.com/1424-8220/25/6/1662 |
| work_keys_str_mv | AT shitaoge onlinevisualdetectionsystemforheadwarpingandlowerbucklingofhotrolledroughslab AT yanpeng onlinevisualdetectionsystemforheadwarpingandlowerbucklingofhotrolledroughslab AT jianliangsun onlinevisualdetectionsystemforheadwarpingandlowerbucklingofhotrolledroughslab AT lichenghan onlinevisualdetectionsystemforheadwarpingandlowerbucklingofhotrolledroughslab |