Results 21 to 30 of about 281 (104)
随着元宇宙概念关注度的持续攀升,元宇宙将如何影响交通系统的发展也成为热点话题。首先介绍了元宇宙概念的起源、现状,展望了元宇宙发展的孵化期、发育期和成熟期,探讨了元宇宙带来的潜在问题。结合马斯洛需要层次论,分析指出元宇宙将逐步影响城市出行需求,进入成熟期后将给交通出行带来深度变革。引导元宇宙健康发展,有效服务社会出行,平行智能方法将起到关键作用。平行交通系统的实施将在交通规划、精准控制、精细服务、应急管理等方面发挥作用。
缪青海, 吕宜生
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基于数字孪生技术开展电力变压器的高效运维,对保障电网的安全运行具有重要意义,而变压器机理模型的创建和高效计算是其中一项关键核心技术。为打破国外商业软件产品的技术垄断,推动国产数字孪生平台面向电力行业的推广应用,文中基于自主可控的数值仿真软件,使用决策树回归方法对变压器温度耦合场模型进行了高效降阶算法的研究,并通过测试样本对降阶模型的计算精度和效率进行了对比评估。研究结果表明,基于决策树回归的降阶模型能够针对变压器温度耦合场的非线性仿真模型实现多参数输入和全节点数据输出的高效计算。相比于数值仿真模型 ...
王山 +8 more
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Research and design of smart campus for digital twins [PDF]
With the acceleration of digital transformation in education, digital twin technology provides new perspectives and methods for the development of smart campuses.
CHEN Ping +3 more
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New boundary of digital twin:A multi-sensory oriented model construction method
As one of the important supporting technologies for the construction of CPS(cyber-physical space),the digital twin has been applied in many fields,such as aerospace,intelligent manufacturing,smart city,smart medical care,smart education,etc.However, some
Qing LIU, Bin LIU, Chen ZHANG
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Theory and method of shearer digital twin navigation cutting motion planning [PDF]
In order to further improve the intelligence level of coal working faces and achieve autonomous deduction, autonomous learning, and autonomous optimization of shearer navigation cutting, based on the concept of shearer autonomous navigation cutting ...
GE Shirong, MIAO Bing
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近几十年来,在信息通信技术(ICT)快速进步的推动下,信息化对社会运行和人类生活方方面面的影响正在日益深化。文章基于数字化、网络化和智能化的发展水平,对信息化发展历程进行了回顾,并提出数字孪生阶段之后将是数字智驱和数字超越阶段。随着信息化上升为未来网络演进的最主要驱动力,文章提出了网算协同、接入协同、光电协同和智能化4个网络演进特征,并强调了光通信在其中的关键作用和挑战。
张新全, 余少华
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近年来,数字孪生技术在承载网智能化管控领域的应用成为一个新的热点和研究方向。国内外各研究机构纷纷开展相关应用场景的探索、标准化研究等工作,产业生态正逐步形成。基于当前的信息通信领域数字孪生技术研究,分析了5G承载网管控面临的新挑战,探索了数字孪生技术在5G承载网的应用场景和需求。基于这些典型应用场景,提出了数字孪生应用服务方案设计,以及仿真器和模拟器组件的功能和数据描述。最后列举了5G网络切片资源划分和变更仿真功能的应用案例。
王郁1, 崔潇1, 朱剑2, 周晓慧3, 李芳1
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Digital twin-driven control construction for three machines of smart coal mining face [PDF]
In order to further improve the intelligent control level of fully mechanized mining equipment in coal mines and achieve the normalized operation of intelligent mining face, this paper proposes the related concepts and system architecture of intelligent ...
Bing MIAO +3 more
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为打破国外商业软件对数字孪生技术的垄断,掌握具有自主知识产权的仿真模型降阶技术,推动自主可控的数字孪生平台在电力行业的发展布局,文中基于国产多物理场仿真软件,针对±800 kV干式平波电抗器的绝缘校核仿真进行了数值计算模型的高效降阶算法研究。通过有限元模型的参数化计算获取样本数据集,并采用PLS(偏最小二乘法)和GP(高斯过程)两种机器学习算法进行降阶模型的训练和优化,最后从计算精度和计算效率两个方面对机器学习模型的降阶效果进行了对比评估。研究结果表明:机器学习降阶模型获得了较高的计算准确度和效率 ...
杨国华, 王文豪, 陈蕾, 李学宝
doaj
Knowledge reasoning and strategy optimization for ship operation and maintenance based on digital twin and improved KD tree algorithm [PDF]
Objective With the continuous development of industrial technology, the intelligence of modern ship processes has been continuously advancing. The propulsion system, auxiliary power system, etc.
Liyao ZHANG +4 more
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