Wide Area Monitoring Systems (WAMS) utilizing synchrophasor measurements is considered one of the essential parts in smart grids that enable system operators to monitor, operate, and control power systems in wide geographical area. On the other hand, high-speed, reliable and scalable data communication infrastructure is crucial in both construction and operation of WAMS. Universal mobile Telecommunication System (UMTS), the 3G standard for mobile communication networks, was developed to provide high speed data transmission with reliable service performance for mobile users. Therefore, UMTS is considered a promising solution for providing a communication infrastructure for WAMS. 3G based EWAMS (Egyptian wide area Monitoring System) is designed and implemented in Egypt through deployment a number of frequency disturbance recorders (FDRs) devices on a live 220kV/500kV Egyptian grid in cooperation with the Egyptian Electricity Transmission Company (EETC). The developed EWAMS can gather information from 11 FDRs devices which are geographically dispersed throughout the boundary of the Egyptian power grid and to a remote data management center located at Helwan University. The communication performance for the developed EWAMS in terms of communication time delay, throughput, and percentage of wasted bandwidth are studied in this paper. The results showed that the system can achieve successfully the communication requirements needed by various wide area monitoring applications.
Monitoring the energy consumed by a network infrastructure to detect and isolate faults in communication architecture
近年来，在计算机网络、高能效网络协议和网络管理系统领域中引入了一些重大改进。软件定义网络（Software Defined Network，SDN）作为管理复杂网络的新范式，为降低ICT能耗带来了重要机遇。在本文中，我们正在解决监控网络设备状态和优化现有解决方案的过程中的改进。我们正在监控网络架构的能耗，并增加检索到的原始功率数据，以检测设备状态的变化。目标是对从实际测量中获取的功率数据与从功率模型中提取的数据之间的差异进行基准测试，转换为设备的预期行为。该应用程序旨在监控和分析由思科交换机和路由器、Dell Precision工作站和Raritan PDU组成的模拟ICT基础架构的检索到的电源数据。此外，开发了智能算法，其结果是检测设备状态的变化，以及检测和隔离可能的异常及其对能耗的影响。该应用被设想为现有SDN控制器的扩展，用于监控和报告ICT设备状态的变化。
VINEVI: A Virtualized Network Vision Architecture for Smart Monitoring of Heterogeneous Applications and Infrastructures
Institute of Exact and Technological Sciences (IEP), Federal University of Viçosa（维索萨联邦大学精确与技术科学研究所）；Faculty of Computing (FACOM), Federal University of Uberlândia（Uberlândia联邦大学计算学院）
Structural Health Monitoring system with Narrowband IoT and MEMS sensors
迫切需要对民用基础设施进行监测，以跟踪老化、损坏情况，并最终防止可能危及许多人生命的严重故障。从经济和生命安全的角度来看，以连续和细粒度的方式监测各种建筑物的完整性的能力，称为结构健康监测，具有低成本，长期和连续的测量是必不可少的。为了满足这些需求，我们提出了一种低成本的无线传感器节点，专门设计用于支持模态分析在较长的时间内与远程连接，低功耗。我们的设计使用了极具成本效益的MEMS加速度计，并利用窄带物联网协议（NB-IoT）与4G基础设施网络建立了远距离连接。据我们所知，远距离无线连接、免布线安装和多年使用寿命是任何商业或研究设备所不具备的独特功能组合。我们详细讨论了节点的硬件结构和电源管理。实验测试表明，使用17000 mAh电池或使用小型太阳能电池板（60 mm x 120 mm）完全能量中性操作的寿命超过十年。此外，我们验证测量精度，并确认与MEMS传感器的模态分析的可行性：与基于压电传感器的高精度仪器相比，我们的传感器节点实现了0.08%的最大差异，成本和功耗的一小部分。
