为降低智慧教室服务请求响应延迟,提出基于智能桌面虚拟化平台(Operating System Virtualization,OSV)技术的智慧教室管理系统。在系统硬件方面,对触控整合器和QXL设备进行选型与设计;在系统软件方面,应用OSV技术虚拟化设计系统人际交...为降低智慧教室服务请求响应延迟,提出基于智能桌面虚拟化平台(Operating System Virtualization,OSV)技术的智慧教室管理系统。在系统硬件方面,对触控整合器和QXL设备进行选型与设计;在系统软件方面,应用OSV技术虚拟化设计系统人际交互显示界面,利用模糊逻辑技术设计智慧教室管理程序,实现智慧教室的管理。实验证明,设计的系统对于智慧教室管理服务请求的响应平均延迟时间为0.05 s,短于传统系统,能够对智慧教室管理服务做到实时响应。展开更多
The paradigm shift from a coal-based power system to a renewable-energy-based power system brings more challenges to the supply-demand balance of the grid.Distributed energy resources(DERs),which can provide operating...The paradigm shift from a coal-based power system to a renewable-energy-based power system brings more challenges to the supply-demand balance of the grid.Distributed energy resources(DERs),which can provide operating reserve to the grid,are regarded as a promising solution to compensate for the power fluctuation of the renewable energy resources.Small-scale DERs can be aggregated as a virtual power plant(VPP),which is eligible to bid in the operating reserve market.Since the DERs usually belong to different entities,it is important to investigate the VPP operation framework that coordinates the DERs in a trusted man-ner.In this paper,we propose a blockchain-assisted operating reserve framework for VPPs that aggregates various DERs.Considering the heterogeneity of various DERs,we propose a unified reserve capacity evaluation method to facilitate the aggregation of DERs.By considering the mismatch between actual available reserve capacity and the estimated value,the performance of VPP in the operating reserve market is improved.A hardware-based experimental system is developed,and numerical results are presented to demonstrate the effectiveness of the proposed framework.展开更多
传统硬件倒闸教学方法老旧,实验设备不足,导致一些学生只重视理论学习,缺乏动手能力。在新工科背景下,利用虚拟现实技术提高教学质量,提高学生实践能力,培养高质量电力方面的人才至关重要。本文基于虚拟现实技术的特点和实际教学案例,...传统硬件倒闸教学方法老旧,实验设备不足,导致一些学生只重视理论学习,缺乏动手能力。在新工科背景下,利用虚拟现实技术提高教学质量,提高学生实践能力,培养高质量电力方面的人才至关重要。本文基于虚拟现实技术的特点和实际教学案例,提出虚拟现实技术介入实验课程的概念,并通过Visual Studio Code设计实现一种虚拟倒闸作业系统。该系统能够下发倒闸任务,使培训人员在虚拟环境下直观学习、熟悉、模拟倒闸操作过程,引导学生在虚拟环境中实操,并实时判断操作行为,可用于培养新工科背景下的高质量实践型人才。展开更多
在智能运维模式下,传统轨道车辆车载故障预测与健康管理(prognostics and health management, PHM)系统存在单节点服务可扩展性低、资源利用率不高、可移植性差等问题。为此,文章引入目前较为主流的Docker容器虚拟化技术,搭建了适用于...在智能运维模式下,传统轨道车辆车载故障预测与健康管理(prognostics and health management, PHM)系统存在单节点服务可扩展性低、资源利用率不高、可移植性差等问题。为此,文章引入目前较为主流的Docker容器虚拟化技术,搭建了适用于轨道车辆车载PHM系统的虚拟化平台;并以智能运维PHM车载产品为例,详细介绍了虚拟化平台总体架构设计及PHM模型部署方案。通过实验测试、工具移植对所设计的PHM车载产品功能进行了对比分析与验证。测试结果表明,基于容器虚拟化技术平台可获得较好的性能增益,一方面提升了资源使用率,硬件资源配置更加灵活;另一方面,多模型的并行计算效率更高,多模型之间没有数据交互,具有很好的移植性和可扩展性。展开更多
文摘为降低智慧教室服务请求响应延迟,提出基于智能桌面虚拟化平台(Operating System Virtualization,OSV)技术的智慧教室管理系统。在系统硬件方面,对触控整合器和QXL设备进行选型与设计;在系统软件方面,应用OSV技术虚拟化设计系统人际交互显示界面,利用模糊逻辑技术设计智慧教室管理程序,实现智慧教室的管理。实验证明,设计的系统对于智慧教室管理服务请求的响应平均延迟时间为0.05 s,短于传统系统,能够对智慧教室管理服务做到实时响应。
基金The Science and Technology Development Fund,Macao SAR(File No.0011/2022/AGJFile No.SKL-IOTSC(UM)-2021-2023).
文摘The paradigm shift from a coal-based power system to a renewable-energy-based power system brings more challenges to the supply-demand balance of the grid.Distributed energy resources(DERs),which can provide operating reserve to the grid,are regarded as a promising solution to compensate for the power fluctuation of the renewable energy resources.Small-scale DERs can be aggregated as a virtual power plant(VPP),which is eligible to bid in the operating reserve market.Since the DERs usually belong to different entities,it is important to investigate the VPP operation framework that coordinates the DERs in a trusted man-ner.In this paper,we propose a blockchain-assisted operating reserve framework for VPPs that aggregates various DERs.Considering the heterogeneity of various DERs,we propose a unified reserve capacity evaluation method to facilitate the aggregation of DERs.By considering the mismatch between actual available reserve capacity and the estimated value,the performance of VPP in the operating reserve market is improved.A hardware-based experimental system is developed,and numerical results are presented to demonstrate the effectiveness of the proposed framework.
文摘传统硬件倒闸教学方法老旧,实验设备不足,导致一些学生只重视理论学习,缺乏动手能力。在新工科背景下,利用虚拟现实技术提高教学质量,提高学生实践能力,培养高质量电力方面的人才至关重要。本文基于虚拟现实技术的特点和实际教学案例,提出虚拟现实技术介入实验课程的概念,并通过Visual Studio Code设计实现一种虚拟倒闸作业系统。该系统能够下发倒闸任务,使培训人员在虚拟环境下直观学习、熟悉、模拟倒闸操作过程,引导学生在虚拟环境中实操,并实时判断操作行为,可用于培养新工科背景下的高质量实践型人才。
文摘在智能运维模式下,传统轨道车辆车载故障预测与健康管理(prognostics and health management, PHM)系统存在单节点服务可扩展性低、资源利用率不高、可移植性差等问题。为此,文章引入目前较为主流的Docker容器虚拟化技术,搭建了适用于轨道车辆车载PHM系统的虚拟化平台;并以智能运维PHM车载产品为例,详细介绍了虚拟化平台总体架构设计及PHM模型部署方案。通过实验测试、工具移植对所设计的PHM车载产品功能进行了对比分析与验证。测试结果表明,基于容器虚拟化技术平台可获得较好的性能增益,一方面提升了资源使用率,硬件资源配置更加灵活;另一方面,多模型的并行计算效率更高,多模型之间没有数据交互,具有很好的移植性和可扩展性。
