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数字矿山模型创建及其在采矿专业教学中的应用 被引量:2
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作者 林吉飞 乔登攀 +4 位作者 董娟 汤丽 林友 程涌 刘聪 《昆明冶金高等专科学校学报》 CAS 2021年第5期109-114,共6页
在新的时代背景条件下,学校主动开发数字矿山模型,助力采矿专业核心课程教学。地下矿山模型、露天矿山三维境界优化模型、矿井通风系统网络解算模型等数字矿山模型的创建及应用,有助于提高学校采矿专业教学质量,主要体现在:革新教学手段... 在新的时代背景条件下,学校主动开发数字矿山模型,助力采矿专业核心课程教学。地下矿山模型、露天矿山三维境界优化模型、矿井通风系统网络解算模型等数字矿山模型的创建及应用,有助于提高学校采矿专业教学质量,主要体现在:革新教学手段,促进教学相长;搭建虚拟实践环境,促进学生实训;服务生产,促进企业创新创效;促进青年教师交流、提高青年教师专业水平和教学能力;推动学校“双高计划”建设。 展开更多
关键词 数字矿山模型 采矿专业教学 “双高计划”建设
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面向智能矿山与新工科的数字孪生技术研究 被引量:36
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作者 张帆 李闯 +1 位作者 李昊 刘毅 《工矿自动化》 北大核心 2020年第5期15-20,共6页
将数字孪生与人工智能(AI)技术相结合,提出了基于数字孪生+AI的智能矿山建设新思路。探索了智能矿山技术发展路径,研究了数字孪生技术的特征、应用领域及发展趋势,指出数字孪生是数字化矿山发展的必然趋势。提出了基于数字孪生+AI的智... 将数字孪生与人工智能(AI)技术相结合,提出了基于数字孪生+AI的智能矿山建设新思路。探索了智能矿山技术发展路径,研究了数字孪生技术的特征、应用领域及发展趋势,指出数字孪生是数字化矿山发展的必然趋势。提出了基于数字孪生+AI的智能矿山理论架构,构建了矿山数字孪生模型,模型自下而上分别为矿山全要素物理实体、矿山信息物理融合层、矿山数字孪生模型、矿山孪生数据交互层、矿山应用智能服务层,据此实现智能矿山的泛在感知、协同控制和智能决策与优化。从应用实际需求出发,探讨了智能矿山模型构建技术、智能开采数字孪生体技术、矿山智能控制技术、矿山设备故障预测、基于数字孪生的人机交互等关键技术。通过研究数字孪生在智能矿山中的应用,为AI技术在智能矿山应用落地提供思路,为未来智能矿山新工科建设提供理论借鉴。 展开更多
关键词 智能矿山 数字孪生 人工智能 矿山数字孪生模型 智能开采数字孪生体
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Solving method of generalized nonlinear dynamic least squares for data processing in building of digital mine
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作者 陶华学 郭金运 《Journal of Coal Science & Engineering(China)》 2003年第2期54-57,共4页
Data are very important to build the digital mine. Data come from many sources, have different types and temporal states. Relations between one class of data and the other one, or between data and unknown parameters a... Data are very important to build the digital mine. Data come from many sources, have different types and temporal states. Relations between one class of data and the other one, or between data and unknown parameters are more nonlinear. The unknown parameters are non random or random, among which the random parameters often dynamically vary with time. Therefore it is not accurate and reliable to process the data in building the digital mine with the classical least squares method or the method of the common nonlinear least squares. So a generalized nonlinear dynamic least squares method to process data in building the digital mine is put forward. In the meantime, the corresponding mathematical model is also given. The generalized nonlinear least squares problem is more complex than the common nonlinear least squares problem and its solution is more difficultly obtained because the dimensions of data and parameters in the former are bigger. So a new solution model and the method are put forward to solve the generalized nonlinear dynamic least squares problem. In fact, the problem can be converted to two sub problems, each of which has a single variable. That is to say, a complex problem can be separated and then solved. So the dimension of unknown parameters can be reduced to its half, which simplifies the original high dimensional equations. The method lessens the calculating load and opens up a new way to process the data in building the digital mine, which have more sources, different types and more temporal states. 展开更多
关键词 method for generalized nonlinear least squares separating algorithm iterative solution
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