建设通信机房的数字孪生系统,对提升通信网络主要资产的管理水平具有重要意义。机房设备、设施的低成本、高质量三维建模是数字孪生系统建设的关键。为此,提出了一种通信机房的智能三维建模技术方案,依靠普通相机采集的多角度照片组,综...建设通信机房的数字孪生系统,对提升通信网络主要资产的管理水平具有重要意义。机房设备、设施的低成本、高质量三维建模是数字孪生系统建设的关键。为此,提出了一种通信机房的智能三维建模技术方案,依靠普通相机采集的多角度照片组,综合运用人工智能(artificial intelligence,AI)技术,可生成机房设备、设施的高精度、带语义三维模型。该方案联合使用运动恢复结构(structure from motion,SfM)及按位置分割对象(segmenting objects by locations,SOLO)算法,优化了SOLO算法的损失函数。分析表明,该方案可显著提升识别准确度,同时提升了建模运算效率,降低了建模需要采集的现场照片数量和精度要求,具有很强的实用性。展开更多
Moving beyond the conventional“level diagnosis-case analysis”framework,this study,grounded in the SOLO Taxonomy,constructs a four-dimensional instructional model of“stratified objectives,tasks,guidance,and assessme...Moving beyond the conventional“level diagnosis-case analysis”framework,this study,grounded in the SOLO Taxonomy,constructs a four-dimensional instructional model of“stratified objectives,tasks,guidance,and assessment.”Focusing on geometric proofs in middle school,the model is practically applied through case studies of the properties of parallelograms and triangle congruence.By transforming the SOLO levels into actionable instructional steps,the model addresses key student challenges-such as fragmented thinking processes,disorganized logical expression,and weak knowledge transfer-thereby facilitating cognitive progression among students at different levels.The implementation demonstrates that this model significantly enhances the precision and effectiveness of teaching geometric proofs.Its core strengths lie in using visualized diagnostic tools for precise instructional positioning and constructing scaffolded task sequences to build clear pathways for cognitive development.展开更多
文摘建设通信机房的数字孪生系统,对提升通信网络主要资产的管理水平具有重要意义。机房设备、设施的低成本、高质量三维建模是数字孪生系统建设的关键。为此,提出了一种通信机房的智能三维建模技术方案,依靠普通相机采集的多角度照片组,综合运用人工智能(artificial intelligence,AI)技术,可生成机房设备、设施的高精度、带语义三维模型。该方案联合使用运动恢复结构(structure from motion,SfM)及按位置分割对象(segmenting objects by locations,SOLO)算法,优化了SOLO算法的损失函数。分析表明,该方案可显著提升识别准确度,同时提升了建模运算效率,降低了建模需要采集的现场照片数量和精度要求,具有很强的实用性。
文摘Moving beyond the conventional“level diagnosis-case analysis”framework,this study,grounded in the SOLO Taxonomy,constructs a four-dimensional instructional model of“stratified objectives,tasks,guidance,and assessment.”Focusing on geometric proofs in middle school,the model is practically applied through case studies of the properties of parallelograms and triangle congruence.By transforming the SOLO levels into actionable instructional steps,the model addresses key student challenges-such as fragmented thinking processes,disorganized logical expression,and weak knowledge transfer-thereby facilitating cognitive progression among students at different levels.The implementation demonstrates that this model significantly enhances the precision and effectiveness of teaching geometric proofs.Its core strengths lie in using visualized diagnostic tools for precise instructional positioning and constructing scaffolded task sequences to build clear pathways for cognitive development.
