An architectural model for intelligent network management

Traditional network management approach involves the management of each vendor‘s equipment and networkd segment in isolation through its own proprietary element management system.It is necessary to set up a new network management architecture that calls for operation consolidation across vendor and technology boundaries.In this paper,an architerctural model for Intelligent Network Management(INM)is presented.The INM system includes a manager system,which controls all subsystems and coordinates different management tasks;an expert system,which is responsible for handling particularly difficult problems,and intelligent agents,which bring the management closer to applications and user requirements by spreading intellignet agents through network segments or domain.In the expert system model proposed,especially an intellignet fault management system is given.The architectural model is to build the INM system to meet the need of managing modern network systems.     

Massive Storage Systems

To accommodate the explosively increasing amount of data in many areas such as scientific computing and e-Business, physical storage devices and control components have been separated from traditional computing systems to become a scalable, intelligent storage subsystem that, when appropriately designed, should provide transparent storage interface, effective data allocation, flexible and efficient storage management, and other impressive features. The design goals and desirable features of such a storage subsystem include high performance, high scalability, high availability, high reliability and high security. Extensive research has been conducted in this field by researchers all over the world, yet many issues still remain open and challenging. This paper studies five different online massive storage systems and one offline storage system that we have developed with the research grant support from China. The storage pool with multiple network-attached RAIDs avoids expensive store-and-forward data copying between the server and storage system, improving data transfer rate by a factor of 2-3 over a traditional disk array. Two types of high performance distributed storage systems for local-area network storage are introduced in the paper. One of them is the Virtual Interface Storage Architecture (VISA) where VI as a communication protocol replaces the TCP/IP protocol in the system. VISA's performance is shown to achieve better than that of IP SAN by designing and implementing the vSCSI (Vl-attached SCSI) protocol to support SCSI commands in the VI network. The other is a fault-tolerant parallel virtual file system that is designed and implemented to provide high I/O performance and high reliability. A global distributed storage system for wide-area network storage is discussed in detail in the paper, where a Storage Service Provider is added to provide storage service and plays the role of user agent for the storage system. Object based Storage Systems not only store data but also adopt the attributes and methods of objects that encapsulate the data. The adaptive policy triggering mechanism (APTM), which borrows proven machine learning techniques to improve the scalability of object storage systems, is the embodiment of the idea about smart storage device and facilitates the self-management of massive storage systems. A typical offline massive storage system is used to backup data or store documents, for which the tape virtualization technology is discussed. Finally, a domain-based storage management framework for different types of storage systems is presented in the paper.     

基于多级存储结构的海量信息管理系统的研究

It is very important for such large-scale application systems as global information systems,GIS,digital libraries,data warehousing to effectively manage and manipulate the large volumes of infor-mation(more than terabytes of data). One of challenge problems is to study massive information man-agement system and related techniques. Since the large volumes of information are mainly stored on ter-tiary storage devices,the study of massive information management system should focus on the follow-ing aspects. (l)the multilevel storage architecture in which the tertiary storage devices are main datamedia and the secondary storage devices are data cache; (2)scalable system architecture of massive in-formation management system; (3)retrieve process techniques. This paper will deeply study and discussthe above oroblems.     

空间数据库索引管理系统的设计与实现

By the special character and wide application of spatial data,it is needed to design a kind of spatial database system management system(SDBMS),index management is a core part of SDBMS,the performance of a database is decided by the management function of index largely ,this paper defines from the structure of the minimum data item to index tree,index page‘s storage structure and memory management,designs and implements ultimately a spatial database index management system.     

Mutual authentication protocols for RFID systems

With the availability of low-cost radio frequency identification (RFID) tags, security becomes an increasing concern.However, such tags do not permit complex eryptographic functions due to their computational, communications, and storage limitations.In this paper, we investigate the security issues and requirements of RFID systems, and propose ultra-light weight and light weight protocols for low-cost RFID tags. The proposed protocols has been applied to a supply chain management system.     

The intelligent CAI system for chemistry based on automated reasoning

A new type of intelligent CAI system for chemistry is developed in this paper based on automated reasoning with chemistry knowledge.The system has shown its ability to solve chemistry problems,to assist students and teachers in studies and instruction with the automated reasoning functions.Its open mode of the knowledge base and its unique style of the interface between the system and human provide more opportunities for the users to acquire living knowledge through active participation.The automated reasoning based on basic chemistry knowledge also opened a new approach to the information storage and management of the ICAI system for sciences.     

分布式网络存储管理系统的研究与实现

The distributed network storage management system will effectively organize the users' storage spaces which are distributed and heterogeneous to provide the users with a piece of integrated and uniform virtual storage space.This paper summarily introduces the fundamental function and structure of the system, and mainly describes the related protocols and the method for realizing.     

The Design and Implementation of “The GIS Based Mineral Resource Management Information System”

It is described in detail in this paper the entire development process of “The GIS Based Mineral Resource Management Information System” exercising software engineering principles together with GIS technology, database analysis and design techniques etc. It is designed to implement the standardization of geological data storage and management, to provide an efficient retrieval system and a visualization tool for data analysis, thus lays a solid foundation for profound exploration and utilization of geological data.     

Distributed environment representation and object localization system in intelligent space

A kind of new environment representation and object localization scheme is proposed in the paper aiming to accomplish the task of object operation more efficiently in intelligent space.First,a distributed environment representation method is put forward to reduce storage burden and improve the system’s stability.The layered topological maps are separately stored in different landmarks attached to the key positions of intelligent space,so that the robot can search the landmarks on which the map information can be read from the QR code,and then the environment map can be built autonomously.Map building is an important prerequisite for object search.An object search scheme based on RFID and vision technology is proposed.The RFID tags are attached to the target objects and reference objects in the indoor environment. A fixed RFID system is built to monitor the rough position(room and local area)of target and a mobile RFID system is constructed to detect the targets which are not in the covering range of the fixed system.The existing area of target is determined by the time sequence of reference tags and target tags,and the accurate position is obtained by onboard vision system at a short distance.The experiments demonstrate that the distributed environment representation proposed in the paper can fully meet the requirements of object localization,and the positioning scheme has high search efficiency,high localization accuracy and precision,and a strong anti-interference ability in the complex indoor environment.     

基于存储管理抖动问题的研究

The thrashing problem of virtual storage management is a result of complex factors of the system. It consumes system resources, and undermines the efficiency of the system. The author of this article analyzes the relationship between thrashing problem and working set and replacement algorithm and the behavior properties of programs ,and raises the possible solutions to remove the thrashing problem.     

远距离射频识别系统及其应用简论

RFID(Radio Frequency Identification)采用无线射频实现可移动存储设备与计算机或PLC之间的数据交换。一个典型的RFID系统包括载码体(即数据存储器),与载码体通讯的天线,以及处理天线与PC(或PLC)之间通信的控制器(天线与控制器一体时,我们称之为只读器或读写器)。射频识别技术被广泛应用于工业自动化、商业自动化、交通运输控制管理、防伪等众多领域,甚至军事用途。     

一种新型电网仓库物品管理算法

射频识别标签具有体积小,无需电源等特点;它在电网设备管理中具有重大作用;但现有的RFID定位系统存在需要专用设备,仅能够实现二维平面定位以及移动定位精度不高,可扩展性低等缺点;在此利用商用机器人和RFID设备提出了一个移动RF机器人三维空间定位系统;具体地说,通过不同的相位构造的三元组,可以得到不同精度的目标标签候选位置;然后,通过对偏差较小的定位结果赋予较大的权重,最终获得精确度较高的定位结果;此外通过利用目标标签与天线轨迹之间的几何关系,可以将该方法扩展到三维空间;通过实验结果表明,所提出的系统在二维和三维定位中存在较小的误差,大约为12cm。     

射频识别技术国内外应用现状、问题与对策

无线射频识别是通过射频信号之间的电磁或电感耦合实现数据采集与通信的一种新兴技术,具有非可视识别、存储容量大等特点,在现代物流、定位跟踪、信息化管理等领域具有广阔应用空间。首先介绍了RFID系统的基本组成,从物资全资可视、空间定位与跟踪、重要设备管理、供应链管理、交通管理、防伪防盗等领域详细阐述了国内外RFID最新应用情况,分析总结了我国RFID技术存在的频率、信息安全、技术标准、读取碰撞、生产成本等问题,提出了相应的对策和建议。     

CC430F5135的无线低功耗RFID系统设计

针对目前RFID读卡器的功耗大、RFID管理系统不灵活等缺陷,设计了一种基于MSP430系列单片机CC430F5135为核心的无线低功耗RFID系统。该系统具有功耗低、无线采集每个RFID读卡器数据、方便控制等特点。介绍了CC430F5135特点及其内部集成的RF无线通信模块,分析了系统的结构原理,并详细分析了RFID读卡器模块、RF无线收发模块和管理系统模块。实验结果验证了采用CC430F5135设计RFID系统的可行性,系统运行稳定可靠。     

无线射频识别及其在制造业中的应用

介绍了无线射频识别（RFID）的电子标签和阅读器.着重分析了RFID的工作原理和技术实现,包括：RFID的射频传输、反向散射调制（back scatter modulation）,标签先发言（TTF）和阅读器先发言（RTF）、数据交换和多标签同时识别.阐述了RFID的应用系统,它包括RFID系统、计算机处理系统、应用软件和系统软件.还阐述了RFID在制造业中的具体应用,包括：生产自动化,仪器、工具、器材和仓储的管理,门禁保安和产品防伪等.     

无线射频识别技术在再生纺化纤行业物流配送中心的应用

通过对再生纺化纤行业中的龙头企业“宁波大发化纤有限公司”厂内物流配送中心的需求研究,提出了一个基于无线射频技术的信息系统解决方案。探讨了一个将高频和超高频RFID设备规划于同一配送中心管理系统之中,通过解决不同设备间相互“串读”的问题,使其分别读取电子标签数据信息并承担相应配送环节的数据采集任务的方法。提出了为实现过滤不同类型的标签,在标签的数据块中设置标志符来加以区分的新方法。最终实现完全基于RFID技术的完整的配送中心试点系统。     

基于RFID的智能图书馆优化系统

探讨了RFID技术在图书馆领域中的应用.RFID技术在图书馆管理系统的应用虽然已相当成熟,但图书馆的智能化还不够普及.研究基于RFID的智能图书馆管理系统旨在解决当前传统图书馆中存在的门禁不能实现选择性报警及短信服务单一的弊端.该系统以RFID技术为基础,将RFID设备与管理软件融为一体,同时提出了RFID技术在图书馆管理系统更人性化的运用方案.     

基于RFID技术的核燃料储运一体化管控平台

核燃料仓储规模不断扩大、调拨频次逐渐增加,为有效提高储运效率、优化管控手段,依托RFID(射频识别)技术和信息集成理念,以某核燃料仓库为研究对象,构建了一个储运一体化的管控平台。在数据采集、容器监控及信息处理方面革新传统管理方法,并重点对该管控平台的系统分级保护、电子标签应用规范、RFIv安全协议采用及防冲撞算法等关键技术进行分析,给出了管控平台的系统解决方案和模型的体系设计。该平台将有助于提高核燃料储运信息采集及处理的自动化程度,并实现核燃料容器级的精细化管理。     

超高频RFID标签可重用仓储管理系统的设计

超高频RFID标签感应距离远、读取速度快和抗干扰能力强,应用于仓储管理系统可以提高其管理效率。针对中小型仓储应用提出物品入库关联RFID标签,出库解除关联,RFID标签可重复使用。采用静态字典编码和时间压缩算法对单一仓储物品信息压缩编码至128比特,通过对RFID标签顺序增计数编号,二维表被简化为线性表并存储在RFID阅读器中,RFID阅读器将仓储数据同步更新管理数据库。讨论了仓储管理系统RFID阅读器的硬件及软件设计架构。仓储物品信息压缩编码和数据顺序存储降低了系统对RFID阅读器硬件和存储资源的需求。     

仓储管理系统中RFID中间件的设计与实现

为了有效地对仓库流程和空间进行管理,实现批次管理、快速出入库和动态盘点,提高仓库的仓储能力,在仓储管理系统中引入无线射频识别技术(RFID),而要实现对RFID产生的海量数据的处理分析,根据EPCglobal推出的ALE规范中说明的RFID中间件软件,提出了基于JMX技术的面向服务的RFID中间件架构,主要实现阅读器等RFID设备向网络的接入,对RFID阅读器提供的数据按照一定的规律进行汇总、过滤及加工,为上层应用提供信息交互,同时屏蔽对设备的控制细节.