リチウムイオン電池の熱診断のためのライブストリーム赤外線知覚
Luyu Tian1, Chaoyu Dong2, Huiqing Qi2
1School of Electrical and Information Engineering, Tianjin University, Tianjin, China.
Abstract:
Accurate thermal fault localization in densely packed lithium-ion battery packs is significantly challenged by mutual cell occlusion, hindering traditional single-perspective monitoring and thermal runaway prevention. To overcome this, we propose a novel two-stage thermal characterization and localization framework. Its core innovation uses real-time camera rotation to capture multi-perspective surface thermal images, effectively circumventing occlusion. Stage 1 uses a detection transformer (DETR) for coarse target characterization via video instance query and frame tracking. Stage 2 achieves precise cell-level fault localization using a 3D incoherent region detector combined with point quadtree-based mask fine-adjustment. Tested on Ansys Fluent-generated battery models under varying ambient temperatures, the system provides robust, accurate end-to-end thermal fault cell positioning under occlusion, achieving 0.78 mAP, 0.75 mAR, and 8.0 FPS inference speed with a 4.5G-parameter model. The refinement of the segmentation boundary in this work makes it clearer and provides a new paradigm for battery fault location using thermal imaging.
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関連する概念動画
Thermosensation
Batteries and Fuel Cells
