对通信工程项目施工的时间管理

在通信工程项目施工中,时间管理是非常重要的一环,可以说时间管理的好坏会决定整个项目的成败,因此要正确认识到通信工程项目中时间管理的重要性。本文通过对通信工程项目时间管理的重点和难点的分析,以及一个实例来对通信工程项目施工的时间管理进行详细的探讨。     

浅谈视频会议的风险管控

本文首先概述了视频会议风险的种类与影响级别,其次介绍了视频会议风险管控流程,最后探讨了视频会议相关工作中的风险管控内容,为读者做好视频会议技术保障工作提供了参考.     

An Intra-PAN Mobility Management Scheme for IPv6 over Low-Power Wireless Personal Area Networks

This paper proposes an intra-PAN mobility management scheme for IPv6 over Low-power wireless personal area networks （6LoWPAN） on the basis of ＂networkbased＂ idea. We developed a tree-like network architecture which includes coordinate nodes for packet routing. All of the control messages are designed to transmit in link layer, and the sensor nodes are free to consider care-of address and the mobile nodes are unnecessary to deal with any mobility handoff messages. The simulation results show that this scheme efficiently cuts down the signaling cost and reduces the energy consumed by fixed nodes which can extend the life time of the whole Personal area networks （PAN）.     

Digital rights management system with user privacy,usage transparency,and superdistribution support

In the modern world, digital content has been massively produced, distributed, and consumed by human beings; consequently, how to protect the rights and benefits of content consumers, producers, and distributors has become a crucial issue. One promising solution is to design a full‐fledged digital rights management (DRM) system. In this study we introduce a new design on the digital rights management system providing user privacy, usage transparency, and superdistribution. A comprehensive set of DRM processing functions and corresponding mechanisms are developed in our system to support various business process requirements. Superdistribution support is embedded in our system design. A prototype is implemented to verify our system design. To protect consumer privacy, a temporary identity is generated for each consumer using the KryptoKnight protocol. Elliptic curve cryptography‐based encryption scheme is adopted for messages transmitted among servers and client over an unsecure communication channel. For usage transparency, a user‐friendly DRM client package (software) is introduced in the proposed DRM system to achieve content protection and support user convenience in usage.Copyright © 2012 John Wiley & Sons, Ltd.     

Framework for distributed autonomic self‐healing in fixed IPv6 networks

A main requirement for the Future Internet is to enable self‐management behaviors facilitating the network to adapt to changing conditions and self‐heal in the face of erroneous states. On the basis of Autonomic Fault‐Management principles, this paper proposes a framework consisting of a set of components operating inside the network elements and allowing the devices to collaboratively realize self‐healing. In that context, Autonomic Fault‐Management is intuitively constituted by the detection of the presence of faulty conditions, followed in turn by the self‐diagnosis and identification of the corresponding root causes, and completed consequently by the removal of the identified root causes and their effects. The proposed framework implements a distributed control loop that interacts with the network operations personnel in case the current erroneous state is not resolvable by means of Autonomic Fault‐Management. We argue that there are a number of mutual benefits between our proposed framework and the IPv6 protocol suite. This is demonstrated by a case study that illustrates these benefits and shows how the capabilities of IPv6 can be enhanced through the self‐healing mechanisms of the proposed framework. Finally, the prototype implementation used for the case study is analyzed in terms of scalability and overhead produced in the network nodes. Copyright © 2013 John Wiley & Sons, Ltd.     

机载有源相控阵雷达给告警器带来的威胁

介绍了机载有源相控阵雷达的工作原理,对其功率管理技术和使告警接收机失配技术的工作特点进行了深入的分析,并从雷达告警器的角度总结了其信号参数随机化的特点,指明了目前雷达告警器无法有效告警此类信号的原因,最后给出了应对策略,为下一步研制新型机载雷达告警器提供了借鉴。     

基于物联网的智能安全管理系统设计与实现

为构建未来智慧型城区形态,提出一种新理念的社区管理——智慧社区,拟设计一种基于物联网技术的区域性智能安全管理系统,以RFID技术为核心支撑技术,主要是针对人员、车辆、物资的综合管控系统(RFID管控系统),该RFID管控系统是面向封闭式或社区式的特定管控区域,对所有进出区域的人员、车辆和物资的身份信息和状态信息实现全面感知,并在统一的监控平台上实现对上述人员、车辆及物资的综合管控。同时,系统具备可扩展性,为未来的扩充应用预留接口。     

对电力计量设备的维护检验和管理分析

随着科技在不断进步,我国电力计量设备不断完善,其管理工作越来越重要。电力计量设备是电能计量的工具。加强电力计量设备的维护与管理,对提高电力资源管理具有重要意义。文中不仅对电力设备管理现状进行了分析,还进一步探讨了加强电力设备维护检验及管理的主要措施,提供行之有效的可行性建议。     

加强供用电合同管理的探索

文中论述了供用电合同管理的重要性,分析了其在管理上存在的问题,针对存在的问题提出了合同管理制度,以及如何用现代化手段来管理供用电合同的方法,以达到规范供用电合同管理,减少供用电纠纷的目的。     

探讨石油专网中通信电源的管理与维护

随着通信行业的不断发展,通信电源在各网络系统中的地位越发提高,尤其对于石油专网而言。文中针对石油专网中的通信电源系统进行了研究,分析了该系统的工作原理及结构组成,在此基础上,总结了石油专网通信电源系统维护管理的工作项目及方法。