IGRS和UPnP协议转换引擎的设计方法

IGRS和UPnP协议所支持的信息设备之间不能相互发现、相互操作和资源共享。为此,分析其互联的相关工作,从设备寻址、设备/服务发现、服务控制等多个层面讨论协议转换引擎的设计方法。解析2种协议的服务控制模块的工作机制,提出引擎架构和设备服务描述的转换方法,根据该协议转换引擎开发一款桥接器。实验结果表明,在未对设备作任何修改的情况下,该桥接器能够透明地实现IGRS与UPnP这2类异构协议设备之间的互操作,而且稳定性较好。     

泛在设备互联桥接器设计及实现

针对电子产品通信方式和通信协议各异造成的不兼容问题,设计一种支持多种无线接口和多种互连协议的桥接器,在硬件上允许多种设备接入,在软件上实现多种协议的兼容,通过UPnP协议与IGRS协议间的转换,以及将Zigbee和Bluetooth虚拟成UPnP设备,较好地解决了UPnP、IGRS、ZigBee、Bluetooth设备之间的互联、互操作问题。     

基于UPnP的数字家庭研究

UPnP技术是现代数字家庭技术中得到广泛支持、最有发展前途的一种,主要用于实现设备的智能互联互通.本文研究了UPnP的协议栈和工作过程,通过联网微机来模拟UPnP设备, 建立了一个基于UPnP的媒体播放原型系统,并对其性能进行了分析研究.     

IGRS与UPnP设备互连的安全机制研究*

对IGRS的安全机制、UPnP的安全机制、IGRS与UPnP基于非安全管道上的互连方法进行了研究分析,提出了一种IGRS与UPnP互连的安全机制,保障它们之间互连的安全性,有效防止了网络中针对非安全互连漏洞的各种攻击。     

基于UPnP的AV体系结构的设计与实现

UPnP是一种实现网络设备智能互连以及对设备服务自动控制的标准规范.介绍一种基于UPnP的AV体系结构,AV体系结构允许设备支持不同格式类型的娱乐内容(例如:MPEG4、JPEG、MP3、Windows Media Architecture(WMA)、bitmaps (BMP)、NTSC等)和多种传输协议(例如:IEC-61883/IEEE-1394、HTTP GET、RTP、HTTP PUT/POST、TCP/IP等).     

远程访问UPnP网络的方法与实现

通过对已有远程访问UPnP网络方法进行的分析,提出了一种基于XMPP机制远程访问UPnP网络的方法,实现了对UPnP协议的无缝扩展.该方法由在局域网内的网关和在公共网络(例如Internet)的服务器组成,其中网关收集本地UPnP设备信息并通过服务器转发至远程网关,远程网关根据收到的信息创建对应的虚设备,代理远程控制点与设备间的交互.实验结果证明,在未对现有设备作任何修改的情况下,该方法能够透明的实现UPnP设备间的远程交互,且稳定性较高.     

基于UPnP和UPnP AV的多媒体内容同步和回放

简要描述了基于UPnP技术架构和UPnP AV规范的家庭娱乐系统(HES)的实现方案,在HES中提出了设备选择算法、轻量级可切换播放服务和快速同步算法.设备选择算法实现了用户零干预条件下的自动切换,轻量级可切换播放服务提供了一个简单高效的服务实现,而快速同步算法将媒体播放切换动作前的同步时间降低到秒数量级,与传统内容同步方法分钟级的延时相比具有重要的使用价值.     

IGRS中的智能互联基础寻址协议

计算机网络的发展,出现了各种信息设备之间能够智能互联,进行资源共享和协同服务的新型应用模式。文章介绍了笔者在IGRS协议中实现的设备自动发现和动态组网的基础寻址协议。     

基于UPnP技术的媒体服务器的设计和实现

UPnP技术把用于PC机上的即插即用接口扩展到了网络,方便地实现了连网设备之间的发现、接口声明和其它信息的交换等互动操作功能。论文介绍了基于UPnP技术网络的组成部件,然后分析了UPnP协议栈的结构及其功能和UPnP网络的工作原理。在此基础上,给出了应用UPnP技术实现媒体服务器的实例,通过实际应用发现,采用UPnP技术实现的媒体服务器具有简单易用的特点,对开发同类项目具有一定参考价值。     

IGRS基础协议中的安全机制

本文介绍了IGRS基础协议中四种不同的安全机制的主要内容和实现流程,同时对IGRS基础协议的安全应用涉及到的安全管道创建初始化、安全身份认证及安全管道密钥协商、安全管道创建确认的流程作了简要的描述,并对IGRS基础协议的安全机制与无线局域网的安全机制做了详尽的比较和分析。     

Towards a new open communication standard between homes and service robots,the DHCompliant case

The interoperability of service robots and digital home was a user demand from the past years. In response to that necessity, the researchers from the Infobotica Research Group, in cooperation with a group of companies and universities, have proposed a new open standard and architecture. It is composed of different virtual services, protocols as well as an open adapters’ architecture, on top of the UPnP protocol stack. The proposed application protocols and the general architecture provide a communication environment for positioning devices, rules compliance checks, the collaboration between devices and managing energy efficiently. The different tools, adapters, and protocols, developed within the DHCompliant architecture, have defined a new level of application protocol that has allowed increased integration of those modules into home automation, improving their interoperability, and allowing the addition of new services to the same standard and commercial hardware.     

Integration of service robots in the smart home by means of UPnP: A surveillance robot case study

Despite the large number of electronic devices that coexist in homes, only a few of them can be easily integrated in the same network. Given that smart home applications are based on the integration of many heterogeneous devices in the same network, the lack of interoperability can become a major issue in the development of advanced services. In this paper we tackle this issue developing an adapter to integrate the service robot Rovio into a smart home by means of Universal Plug and Play (UPnP). Different advanced services are designed to explore the possibilities derived from the integration of service robots in the smart home.     

An object-based middleware supporting efficient interoperability on a smart home network

This paper proposes a novel object-based home network middleware for supporting the interoperability among home devices and smart grid devices. This middleware provides various types of abstract objects for flexible representation of heterogeneous home devices, which are classified based on their characteristics. It is also flexible enough to allow addition of new protocols and message conversion between different protocols through an abstraction layer, which are not supported by existing home network middlewares so that various protocols can be supported. As a result, it can be utilized to provide the interoperability among a variety of devices from sensors to typical home appliances as well as smart grid devices such as a home electric generator and a battery, which adopt different protocols. In order to demonstrate that home devices and smart grid devices are interoperable through the proposed middleware, we implement applications based on the middleware on a target platform consisting of embedded boards, sensors and laptops for emulation purposes of a home network. According to our emulation, this middleware can provide efficient interoperability among home devices and smart grid devices for future energy efficient home.     

Integrating service discovery technologies in OSGi platform

This paper describes the service discovery and interaction for home network devices using heterogeneous standards and protocols. OSGi was proposed to allow several kinds of services coming from different providers to be loaded and run on a gateway. We present a residential gateway based on the OSGi architecture for a smart home network. We combine the SLP SA/DA, the UPnP control point and the SIP UA into the gateway to achieve automated device discovery, registry, and management. Application examples are introduced and the implementation results show that our gateway can provide automatic heterogeneous service or device discovery, registry, and management.     

MobiEureka: an approach for enhancing the discovery of mobile web services

While several service discovery protocols and standards have been proposed for supporting service discovery from mobile devices, this remains a challenging problem. In many cases, mobile clients may discover services which they consider relevant but soon realize that such services are not completely usable on their mobile devices due to compatibility and interoperability issues. Without integrating device capabilities into the discovery process, or a device-aware mobile service discovery, it becomes extremely difficult to determine whether discovered services may or may not function properly within the device’s constraints. This paper introduces a solution known as MobiEureka, a mobile device-aware system for enhancing the discovery of mobile web services from mobile devices. Experimental validation, results, and analysis of the introduced ideas are discussed.     

基于OSGI家庭网关的多媒体系统设计

随着家庭网络技术和多媒体技术的飞速发展,如何实现数字家庭中多媒体服务智能化和人性化已成为当今研究的热点。本文介绍一种基于OSGI家庭网关和UPNP AV架构扩展的媒体共享系统设计,实现家庭网络中多媒体设备的互操作,并且可以通过家庭网关上的虚拟服务器访问外部多媒体设备,同时为多媒体内容提供者提供一个强大的工具,使为用户提供多媒体服务更加智能化。多媒体提供者无需增加额外的设备和配置,不需要准备另外一个协议,使用原来的媒体传输协议就可以连接UPNP AV框架。本系统的服务器框架提供远程I/O服务让用户可以通过手持设备远程控制和访问系统中的多媒体资源。