基于Internet的分布式城市交通协同控制

研究了基于Internet的分布式城市交通协同控制系统模型,分析和规划了模型的组成结构;设计了以S3C44B0X为核心的嵌入式道路控制器,并通过外扩存储、通信、语音等模块,实现控制器的嵌入式模块化设计和软、硬件系统;最后分别在Linux和Windows系统平台下编写网络套接字,实现跨系统网络通信,对整个系统进行了集成和实现。试验结果表明修正的优化控制算法可将平均延误时间优化至10-3s,而且该控制器的软硬件系统运行稳定,性价比高、功能完善、可扩展性和通用性好。     

Experiences of Using Generative Communications to Support Adaptive Mobile Applications

Attention has recently begun to focus on the use of asynchronous paradigms to support adaptive mobile applications. To investigate this issue the authors have developed an asynchronous distributed systems platform based on the tuple space paradigm [19] coupled with extensions to support operation in mobile environments. This paper presents our experiences of developing and using this platform. The benefits of the tuple space approach are highlighted and we discuss in some detail the design, implementation and performance of our platform. We subsequently focus on the critical issues of the tuple space API and the level of support for adaptation which can be provided without compromising the elegance and simplicity of the paradigm. The paper concludes with an analysis of the suitability of platforms based on the tuple space paradigm for use in mobile environments.     

Mobile Agent Coordination for Distributed Network Management

Mobile agents are a promising technology to face the problems raised by the increasing complexity and size of today's networks. In particular, in the area of network management, mobile agents can lead to a fully distributed paradigm to overcome the limits of traditional centralized approaches. A basic requirement for the management of a complex network is the definition of high-level and flexible models to coordinate the accesses to the resources—data and services—provided by the network nodes. On this basis, this paper describes the MARS coordination architecture for mobile agents. MARS is based on the definition of programmable tuple spaces associated with the network nodes: mobile agents can access the local resources and services via the tuple space, thus adopting a standard and high-level interface. The network administrator—via mobile agents—can dynamically program the behavior of the tuple space in reaction to the agents' access to the tuple space, thus leading to a flexible network model. Several examples show the effectiveness of the MARS approach in supporting network management activities.     

互联网应用发展和用户行为解析

互联网在我国迅猛发展,其应用不断创新发展。本文从搜索引擎、社交网站、电子商务、网络视频、网络游戏、移动互联网6个方面对互联网应用发展现状以及各种用户的行为习惯进行研究．最后分析了各种互联网应用的发展趋势。     

关于人工智能技术在Internet上的应用与发展

Internet is the largest international inter-net system at present, and it＇s a uniform developing and running environment of computer applications including Al technology on the netware times,it opens up broad prospects for Al applications and it also supports strong power for Al development.This paper introduces survey of Internet and the action of promotion of it for Al development briefly,and discusses some Al applications and developing technology which are suitable on Internet,and some our relevent works are presented.     

移动互联网及其应用

本文介绍移动互联网的概念及其发展,并针对移动互联网及其终端产品而引发的新一轮互联网浪潮产生的经济及社会价值进行论述。移动互联网随着智能手机及智能终端的普及,随着3G、4G网络的大面积铺开,随着各层次用户数量的大幅提高越来越呈现出蓬勃发展的态势。     

数字认证在移动互联网中的应用研究

对移动互联网应用安全问题进行分析,并对移动应用认证签名技术和体系进行介绍,提出签名认证技术在移动应用开发、发布、检测等环节的应用方法,以保障移动应用的安全。     

情景对移动互联网应用选择的影响研究

作为移动通信和互联网结合的产物,移动互联网发展十分迅速,移动互联网的应用也呈现出多元化发展的态势。在对使用情景理论等相关文献进行梳理后,通过使用CATI电话调查系统和SPASS统计软件,分析研究了情景对移动互联网应用选择的影响。研究发现:移动互联网的普及率仍不高;移动互联的用户有着显著的人口结构特征;即时通信类应用的使用率远远高于其他应用,商务类应用的使用率相对较低;家庭是移动互联网用户最主要的使用情景。     

A Six-Level Architecture for Development of Internet Applications

Three-level architectures were proved to be useful for developing applications. However, three levels are insufficient to provide a high level of customizability and code reuse. In this paper, a further subdivision of each level into sublevels is proposed, which provides the development of customizable components for each sublevel. The implementation of a six-level architecture of Internet application frameworks in the so-called AFW system showed the validity of this approach.     

三网融合背景下探析物联网的应用研究

三网融合与物联网广范应用是当前信息产业化发展的主要趋势,它被世界各国作为振兴经济、提高科技水平的重点发展领域。本文就三网融合背景下物联网的发展进行了分析探讨,并对物联网的新应用做了展望。     

互联网支付创新与发展研究

随着互联网和信息技术的发展,传统金融机构的支付结算方式发生了巨大变化,互联网支付成为支付领域的新方式。本文介绍了互联网支付的发展历程和发展现状,分析了其发展特点,最后通过列举经典案例,论述目前市场上几款互联网支付产品的发展情况,并对未来发展趋势进行了总结。     

A taxonomy of multicast protocols for Internet applications

The continuous growth in applications that require communications among a group of hosts or simultaneous dissemination of data to multiple sites on the Internet has led to considerable interest in multicast communication. These applications have different quality of service requirements such as deadlines to response time and tolerance to data loss. Internet multicast protocols provide a spectrum of services to cater for the needs of a wide array of multicast applications. The design alternatives of a multicast protocol for a particular application may lead to different performance characteristics, for example higher utilization of network bandwidth vs lower protocol processing requirements. Therefore a framework is required to various design choices available to design multicast protocols and evaluate the performance tradeoffs associated with these alternatives. Motivated by such a need and by the evolution of multicast applications over the Internet, this article presents a taxonomy of multicast protocols and a common framework to evaluate their performance.     

现代移动互联网的特点与应用分析

随着现代社会发展水平的不断提高,我国科学技术也得到了快速的发展,科学技术促进了我国的互联网事业的快速,并且在原有的基础上取得了很大的进步,从而使得互联网通讯已经走进了千家万户的生活当中,并成为了人们生活中必不可少的生活资源之一,极大的促进了我国国民经济的快速发展,促进了我国人民生活水平和生活质量的提高,但是随着我国经济的不断进步和发展,当今社会的对互联网通讯的需求也日益增大,尤其是移动互联网的需求猛增,需要不断地完善和提高。所以,本文将重点分析现代移动互联网的特点与应用问题。     

移动互联网发展谨防六大误区

分析了移动互联网发展中的六大误区,为移动互联网企业提供借鉴。提出了移动互联网企业只有遵循移动互联网发展规律,坚持创新,避免六大误区,企业才能最终走向成功。     

基于Android Dojo的移动互联网软件开发方法

主要介绍了在当前主流的移动平台Android上进行移动互联网软件开发的方法。使用HTML、CSS、JavaScript作为开发语言,运用了当前流行的、开源的Dojo框架,在Linux操作系统上使用Eclipse集成开发平台进行程序的开发。以一个简单的Android应用程序作为示例,向大家展示如何开发Android移动互联网程序。     

移动运营商的移动互联网发展路径探究

移动互联网的快速增长催生了巨大的"信息消费"产业图景,但也导致了移动通信网业分离和专业细分的趋势。移动运营商应摆脱"网络运营商"的观念束缚,自身定位为"数字社会的综合服务提供商",主动分拆自己拥有的价值创造环节,成立独立经营实体,融入移动互联网的发展大潮。     

Analysis on Extended Ant Routing Algorithms for Network Routing and Management

Advances in mobile agent research have brought in a new method for network routing, ant routing. Recently, we have derived some preliminary results regarding the agent population growth property and the jumping behavior for an ant routing algorithm. The focus was on the expected number of agents in a node. In practice, the number of agents propagating on each network channel is also critical as the network channel bandwidth is limited. In this paper, we first propose two extended ant routing algorithms, and then provide an in-depth analysis on the population growth behavior of the propagating agents for these algorithms, both at nodes (hosts) and on edges (channels) of the network.     

Coordinating Mobile Agents by the XML-Based Tuple Space

This paper presents Xspace,a programmable coordination paradigm for Internet applications based on mobile agents.The Xspace system fully exploits the advantages of the XML language and Linda-like coordination.It supports XML documents as tuple fields and multiple matching routines implementing different relations among XML documents,including those given by XML query languages,The Xspace uses Java as the implementation language;it is based on object-oriented XMLized tuple spaces to implement a portable and programmable coordination paradigm for mobile agents.The dsign and implementation procedures of Xspace are described in this paper,Experiment and performance evaluation are also made.Finally,some conclusinos and remarks are given.     

移动互联网时代LBS发展现状及趋势

随着卫星定位技术、3G无线通信技术的演进以及各类智能终端市场的快速发展,基于地理位置的信息服务(LBS)在军事、交通、物流等领域得到了广泛应用。综合分析移动互联网时代LBS重点应用领域的变化趋势,分析LBS市场发展的困局,关注LBS厂商的战略转移布局,探讨移动互联网时代LBS厂商的创新盈利模式。