Research and Design of IPv6 Network Management and Operations Support System

IPv6 is the foundation of the development of Next Generation Internet (NGI). An IPv6 network management and operations support system is necessary for real operable NGI. Presently there are no approved standards yet and relevant equipment interfaces are not perfect. A Network Management System (NMS) at the network layer helps implement the integrated management of a network with equipment from multiple vendors, including the network resources and topology, end-to-end network performance, network failures and customer Service Level Agreement (SLA) management. Though the NMS will finally realize pure IPv6 network management, it must be accommodated to the management of relevant IPv4 equipment. Therefore, modularized and layered structure is adopted for the NMS in order to implement its smooth transition.

Design of Power Communication Data Network Management System and Implementation of Data Acquisition Module

The power communication network is a separate network from the power grid whose primary purpose is to ensure the power grid's safe operation.This paper expounds the composition of the comprehensive network management architecture of the power communication data network and the implementation of the data acquisition module in the network management system through theoretical analysis,for the reference of relevant personnel,in order to better promote the collection of power grid communication network data.

Neural Network-Powered License Plate Recognition System Design

The development of scientific inquiry and research has yielded numerous benefits in the realm of intelligent traffic control systems, particularly in the realm of automatic license plate recognition for vehicles. The design of license plate recognition algorithms has undergone digitalization through the utilization of neural networks. In contemporary times, there is a growing demand for vehicle surveillance due to the need for efficient vehicle processing and traffic management. The design, development, and implementation of a license plate recognition system hold significant social, economic, and academic importance. The study aims to present contemporary methodologies and empirical findings pertaining to automated license plate recognition. The primary focus of the automatic license plate recognition algorithm was on image extraction, character segmentation, and recognition. The task of character segmentation has been identified as the most challenging function based on my observations. The license plate recognition project that we designed demonstrated the effectiveness of this method across various observed conditions. Particularly in low-light environments, such as during periods of limited illumination or inclement weather characterized by precipitation. The method has been subjected to testing using a sample size of fifty images, resulting in a 100% accuracy rate. The findings of this study demonstrate the project’s ability to effectively determine the optimal outcomes of simulations.

A Water Line Network Failure Application of Network Design Problems

This study investigated a water supply recovery problem involving municipal water service piping. The problem consisted in recovering full service after network failure, in order to rapidly satisfy all urgent citywide demands. The optimal recovery solution was achieved through the application of so-called network design problems （NDPs）, which are a form of combinatorial optimization problem. However, a conventional NDP is not suitable for addressing urgent situations because （1） it does not utilize the non-failure arcs in the network, and （2） it is solely concerned with stable costs such as flow costs. Therefore, to adapt the technique to such urgent situations, the conventional NDP is here modified to deal with the specified water supply problem. In addition, a numerical illustration using the Sendai water network is presented.

A Nodal Electricity Market Design Based on Regulated Access to Transmission Network

Accomodation of power system constraints with the market mechanism is encountered as a major challenge along the way toward implementation of different electricity market designs. Allocation of fixe or flow-dependent inter-zone trading capacities by the PX （power exchange） can not be accepted unreservedly. The paper is meant to show that a nodal electricity market design that is based on bids for local energy and a regulated transmission access including allocation of ＂entry-exit＂ transmission capacity would be the desired solution. The market players could easily optimize their portfolio while the TSOs （transmission system operators） are requested to mobilize the network＇s in-built flexibility to increase the cross zonal capacity. In the proposed market design, the PX＇s allocation of trading capacity is clearly separate from the TSO＇s management of the power system operational constraint5. Clear operator roles would enlarge access to electricity market as well as market integration of variable RESs （renewable energy sources） that are critically dependent on short notice access to regionat markets,

Cross-Layer Design for EH Systems with Finite Buffer Constraints

Energy harvesting(EH)technology in wireless communication is a promising approach to extend the lifetime of future wireless networks.A cross-layer optimal adaptation policy for a point-to-point energy harvesting(EH)wireless communication system with finite buffer constraints over a Rayleigh fading channel based on a Semi-Markov Decision Process(SMDP)is investigated.Most adaptation strategies in the literature are based on channeldependent adaptation.However,besides considering the channel,the state of the energy capacitor and the data buffer are also involved when proposing a dynamic modulation policy for EH wireless networks.Unlike the channeldependent policy,which is a physical layer-based optimization,the proposed cross-layer dynamic modulation policy is a guarantee to meet the overflow requirements of the upper layer by maximizing the throughput while optimizing the transmission power and minimizing the dropping packets.Based on the states of the channel conditions,data buffer,and energy capacitor,the scheduler selects a particular action corresponding to the selected modulation constellation.Moreover,the packets are modulated into symbols according to the selected modulation type to be ready for transmission over the Rayleigh fading channel.Simulations are used to test the performance of the proposed cross-layer policy scheme,which shows that it significantly outperforms the physical layer channel-dependent policy scheme in terms of throughput only.

A Novel Design Method for Information Services

IT （information technology） services are diverse and complex. Numerous service design methods have been developed for designing and developing products. However, owing to the limited availability of useful tools in IT service design, these methods are ineffective. This study proposes an innovative three-dimensional method for designing IT services. The proposed method considers user requirements, an organization＇s business requirements, service providers＇ management requirements as well as the decision-making criteria of management representatives to ensure a smooth implementation of a designed IT service. Using this method, a prototype system to improve campus wireless local area network services was developed and tested at a university in Taiwan. The prototype system reduced the need for repetitive authentication and the time required to solve service problems and address user complaints. In addition, the service design team observed an approximately 70% reduction in project cycle time. The proposed method provided a systematic means to organize the design and implementation of IT services.

Research on Product Digital Collaborative Design System

Network economy had changed manufacturing environme nt at all. Open global market offer more choice to customer, and it become changea ble and unpredictable as consumers’ needs become more and more characteristic an d diversified. Various new technology coming forth and application accelerate th e rapid change of the market. The manufacturing enterprises were compelled t o change their strategy by the variability of the market, and time has been put to the all-important place. There is a need driven by the market to set up a ne twork design and manufacturing mode which have rapid market responsiveness. In order to meet the need for network manufacturing, the organization and manage ment of manufacturing enterprise need a completely innovation, next generation o f manufacturing system must have the character such as digitization, flexibility , agility, customization and globalization and so on. As for an enterprise in au to industry, how to gather together the orders through the distribution, and rap id produce the product which can meet the customer’s need, it is the key that th e contemporary enterprises succeed in the competitive market. The competitive market requires rapid product development. Close cooperation amo ng the designers will accelerate the product development by shortening the devel opment cycle, improving the product quality and reducing the investment. It has been emphasized in the methodology of concurrent engineering (CE). But sometimes those partners are distributed in the world, so there is a need for an importan t technology contribution to collaborative engineering, and supporting distribut ed designers for rapid product development. This paper focuses on a collaborative design system: Product Digit Collaborative Design System (PDCDS). The solution of PDCDS can make it more efficient and rel iable to visit teledata as well as we can get it from local database. It will be ease to get the newest design process information aided by PDCDS, and it will h ave higher efficiency by collaborative work. Comparing with other traditional Pr oduct Data Management (PDM) software system, PDCDS have some new characters such as group, dynamicness, synchronization or asynchronism working mode, and the hi story recorder is needed, and it also surport Webservice.

基于PowerDesigner的网络管理数据库设计

网络管理系统以数据为中心,数据库在网络管理中起着至关重要的作用。首先对网络管理系统进行了需求分析,然后利用PowerDesigner设计并实现了网络管理系统数据库,对网络管理系统数据库的开发有一定的借鉴作用。

A cross-layer fault tolerance management module for wireless sensor networks

It is a well-established fact that wireless sensor networks (WSNs) are very power constraint networks, but besides this, they are inherently more fault-prone than any other type of wireless network and their protocol design is very application specific. Major reasons for the faults are the unpredictable wireless communication channel, battery depletion, as well as fragility and mobility of the nodes. Furthermore, as traditional protocol design methods have proved inadequate, the cross-layer design (CLD) approach, which allows for interactions between different layers, providing more flexible and energy-efficient functionality, has emerged as a viable solution for WSNs. In this study we define a fault tolerance management module suitable to the requirements, limitations, and specifics of WSNs, encompassing methods for fault detection, fault prevention, fault management, and recovery. The suggested solution is in line with the CLD approach, which is an important factor in increasing the network performance. Through simulations the functionality of the network is evaluated, based on packet loss, delay, and energy consumption, and is compared with a similar solution not including fault management. The results achieved support the idea that the introduction of a unified approach to fault management improves the network performance as a whole.

一种分布式会议管理系统的设计与实现

基于现代会议管理的需求,设计和实现一种C/S和B/S混合部署的会议管理系统。包括会议管理服务中心和若干个会议现场,会议管理服务中心包括数据服务器、应用服务器、Web服务器、通信网关和出口路由器;会议现场包括若干个便携式电脑、RFID(Radio Frequency Identification)读卡器、二维码阅读器、信息显示发布设备、现场WLAN设备及用户终端。使用RIA(Rich Internet Application)技术优化了B/S界面,应用RFID对会议过程中的细节进行监控,借助SAAS(Software as a Service)模式实现会议管理按需配置和快速部署。该系统显著提高了会议管理效率。

SDN网络系统管理平台的设计与实现

文章主要设计一种软件定义网络(Software Defined Network,SDN)管理系统平台,首先分析系统的用户需求,其次提出其整体框架、模块设计以及数据库设计,并进行系统测试。文章所设计的平台能够优化网络维护的流程,提升网络管理员开展日常网络维护工作的效率。

基于无线移动网络的医院信息自动管理系统设计

为实现医院信息的实时传输,提升信息处理能力,设计基于无线移动网络的医院信息自动管理系统。采用无线移动网络连接整个系统,通过基础配置子系统输入各类医院信息后,数据子系统采用贝叶斯方法根据信息属性分类该信息后存储至元数据仓库中,并依据用户端发送的信息查询请求,根据要查询的信息内容,调取相关信息传送至交换平台,通过该平台与管理子系统交换信息,完成医院信息管理。测试结果表明系统可保证医院信息的有效、实时传输,具有较好的医院信息管理能力。

基于Mesh网络的集群式照明管理系统设计

目前的mesh网络中若使用电池供电的传感器,则设备的频繁通信和控制会导致额外的能源消耗。因此,本文基于mesh网络设计了一款集群式照明管理的系统,通过对该系统总框架的设计,将系统所具备的功能分成了数据采集、网络拓扑结构、集群控制等三个模块。通过实验分析,验证出该系统在数据传输效率、控制精准度以及节能效果等方面均具有显著优势。

基于继电保护的配网管理终端自动调试校准系统

由于系统存在误差大等问题,设计一种基于继电保护的配网管理终端自动调试校准系统。主要对系统的整体硬件结构进行优化,并重新设计继电保护装置结构以及信息传输流程,针对交直流电压的变换信息,确定继电保护装置内部电路。对校准系统工作中存在的粗大误差利用拉依达准则进行识别并剔除,列举部分情况下的拉依达准则判别系数,设计系统智能通信模块,完善继电保护输出流程。实验结果表明,利用所提方法的各个检测项目输出电压的误差均在允许范围之内,其自动调试校准系统更具有效性。

Self-healing and SDN:bridging the gap

Achieving high programmability has become an essential aim of network research due to the ever-increasing internet traffic.Software-Defined Network(SDN)is an emerging architecture aimed to address this need.However,maintaining accurate knowledge of the network after a failure is one of the largest challenges in the SDN.Motivated by this reality,this paper focuses on the use of self-healing properties to boost the SDN robustness.This approach,unlike traditional schemes,is not based on proactively configuring multiple(and memory-intensive)backup paths in each switch or performing a reactive and time-consuming routing computation at the controller level.Instead,the control paths are quickly recovered by local switch actions and subsequently optimized by global controller knowledge.Obtained results show that the proposed approach recovers the control topology effectively in terms of time and message load over a wide range of generated networks.Consequently,scalability issues of traditional fault recovery strategies are avoided.

基于无线传感网络的化工行业实验室信息管理系统设计

常规的化工行业实验室信息管理系统以模块化管理为主,在系统中增加了大量的运算,造成了系统的运行负担。因此,设计了基于无线传感网络的化工实验室信息管理系统。基于无线传感网络建立实验室信息管理数据库,将相同属性的实验室信息整合到一个数据类别中,依靠字段、数据类型管理数据,从而满足系统高效率运行的需求。采用系统测试,验证了该系统的运行性能更佳,能够应用于实际生活中。

基于神经网络的电网人力资源配置自动优化系统设计

为提升电网企业的员工管理能力,优化电网企业人才配置,设计基于神经网络的电网人力资源配置自动优化系统。将神经网络模型与绩效管理模块结合,通过对绩效指标、绩效方案、绩效审批以及员工申诉管理的择优调权处理,得到绩效结果;结合循环神经网络算法,对求职人员信息数据进行训练,实现人岗匹配。对算法进行准确度评价验证后,利用J2EE进行人力资源配置系统开发,结果表明应用系统后,可以大规模审批和处理数据,人均可控利润增加,招聘人岗匹配度较高,说明该系统的人力资源配置管理更为全面有效,具有一定实际应用价值。

基于全生命周期管理的配电网智能巡检管控平台设计

首先,简单阐述了信息化平台的5个设计原则。其次,详细介绍了配电网智能巡检管控平台的整体架构设计图,包括感知层、传输层、应用层和展示层4个方面。最后,从远程数据采集与监测、缺陷管理、状态评估、巡检管理等方面,研究分析了以“云、物、大、移、智”信息技术为支撑的信息化平台的核心应用功能,以期能够为后续配电网巡检管理工作的提升提供新的借鉴和建议。

基于NetFlow和SNMP的铁路数据通信网资源管理系统研究

为提高铁路数据通信网资源管理和运维效率,对数据通信网资源管理机制进行研究,采用以NetFlow、SNMP协议自动采集铁路数据通信网设备资源、IP资源运用情况、业务在线状态及其业务行为特征数据。通过测试环境设计、资源管理系统研发、部署及现场测试,验证基于NetFlow和SNMP协议的铁路数据通信网资源管理机制的可行性。资源管理系统可对业务流进行画像,描绘出业务的源、目的端口、协议、流量大小、业务种类、归属位置等属性,可实现对IP地址资源的动态监测,简化IP地址统计、分析和分配,提高IP资源的使用效率。