Results 61 to 70 of about 287 (108)

Research status and prospects of key technologies for intelligent rapid excavation in coal mines [PDF]

open access: yes
In view of the intelligentization of coal mine roadway excavation, this paper discusses the current development status of four major categories of intelligent fast excavation equipment, including continuous mining machine, excavation and anchor machine ...
He WANG   +6 more
core   +1 more source

Review of Energy Management Systems for Islanded Microgrids [PDF]

open access: yes
ObjectivesAgainst the backdrop of energy resource scarcity and increasing environmental demands, distributed energy supply technologies, particularly renewable energy technologies, have attracted significant attention due to their high energy efficiency,
BIE Yu   +4 more
core   +1 more source

基于数字孪生的GIS综合监控及状态评估技术研究

open access: yesGaoya dianqi
针对换流站GIS设备状态管控难、缺乏诊断评估手段、运行维护效率低等问题,文中基于数字孪生技术,对GIS综合监控及状态评估技术展开研究。首先,基于各类感知元件、运行数据构建GIS的全状态感知模型。其次,通过孪生体模型构建及交互映射技术研究,构建GIS部件级数字孪生体模型并实现典型故障数字化模拟。最后,基于GIS台账、感知模型等数据,结合典型缺陷与故障历史记录,利用半监督式学习、故障树分类处理等算法实现GIS状态分析、趋势预测、故障诊断等功能,其中故障诊断算法通过试验实例验证准确率可达96%。目前 ...
秦有苏   +5 more
doaj  

Review of Research on the Digitalization of Power Generation System [PDF]

open access: yes
With the development and evolution of the information revolution, promoting the integration of a new generation of digital technology with traditional power generation system, and promoting the digital construction of power generation systems is an ...
CHANG Xiqiang   +3 more
core   +1 more source

基于姿态估计的输电线路带电作业的人体数字孪生研究

open access: yesGaoya dianqi
带电作业是保证电网安全可靠运行的重要内容,而带电作业又充满危险。为了能够对人体面临的风险进行评估,可以将数字孪生理念引入输电线路带电作业中,构建人体数字孪生体对人体进行风险评估,在虚拟空间中完成对现实世界的映射。采用姿态估计、模型重构和模拟仿真构建高压输电线路带电作业人体数字孪生体,能够对危险状况进行预警,评估人身安全。首先运用POSIT算法得到现实世界和图像坐标系的转换矩阵,结合二维三维转换技术将后续的二维坐标点转换为三维坐标点,即能得到人体的姿态数据 ...
马爱清, 张成武, 徐进帅, 汪威
doaj  

第九届电工技术前沿问题学术论坛“先进电磁技术”分论坛及专题征稿

open access: yesGaoya dianqi, 2020
先进电磁技术是电工技术领域的重要组成,代表着基础理论的最新进展和新兴应用的飞速发展。随着电磁技术水平的不断提高,我国无线电能传输、电磁发射和超导电磁技术得到长足进步,尤其特高压交直流输电系统和设备研发技术达到国际领先水平。同时,能源互联网、电磁兼容、数字孪生和大数据等技术的巨大需求对先进电磁技术的研发带来巨大挑战。
doaj  

Exploration of the thinking and application of integrated intelligent management and control in oil and gas pipeline engineering [PDF]

open access: yes
ObjectiveAgainst the backdrop of profound global energy restructuring and the pursuit of “dual-carbon” goals, oil and gas pipelines play a critical role in connecting energy production and consumption.
Hao JIANG   +3 more
core   +1 more source

虚实互动的平行城市:基本框架、方法与应用

open access: yes智能科学与技术学报, 2019
概述了平行城市的概念、框架、方法与应用。平行城市是基于 ACP 方法的平行智能在城市领域中的应用。实际城市和与之对应的虚拟空间中的人工城市平行运行、虚实互动,物理空间映射于虚拟空间,人工城市系统描述、预测、引导实际城市系统,虚实闭环,迭代优化,实现智慧城市管理的新模式。
吕宜生, 王飞跃, 张宇, 张晓东
doaj  

新兴互联网技术在卒中康复领域的应用Application of Emerging Internet Technologies in Stroke Rehabilitation

open access: yesZhongguo cuzhong zazhi
卒中康复具有多学科协作与长周期管理的特点,传统卒中康复模式存在评估主观、动态调适不足及资源分布不均等问题。动作捕捉、区块链、人工智能和虚拟现实等新兴互联网技术为优化卒中康复资源配置提供了新方案。本文系统综述上述新兴互联网技术在卒中康复评定、康复训练及信息管理中的应用,分析其在安全隐私、成本效益等方面面临的挑战,并提出三大发展方向,旨在为卒中康复向精准化和高效化发展提供参考。Stroke rehabilitation is characterized by multidisciplinary ...
马雅琦,霍永阳,闫杰,罗娇,许莹,周新悦,王玉龙MA Yaqi, HUO Yongyang, YAN Jie, LUO Jiao, XU Ying, ZHOU Xinyue, WANG Yulong
doaj   +1 more source

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