Abstract:
PURPOSE: A method for converting a PLC(programmable logic circuit) based control code into universal program code using an XML(eXtensible Markup Language) interface and framework system are provided to promote the reusability and flexibility of a program using an XML element table. CONSTITUTION: A PLC open code creation unit(110) creates a PLC open code using a function block diagram language. An XML interface creation unit(120) creates an XML interface using the PLC open code. An universal code creation unit(130) creates a universal program code using the XML interface. The XML interface creation unit includes a configuration element classification unit, an XML element table unit, an attribution allocation unit, and an interface conversion unit.
Abstract:
PURPOSE: An HMIPV6 network based handover control scheme and an access router and a mobile node using thereof in IEEE(institute of electrical and electronics engineers) 802.16e network are provided to proceed an overlapping handover between data link and network layer thereby reducing a packet loss and improving a packet processing ratio. CONSTITUTION: A control unit(220) extracts a MAC address of mobile node and target base station ID using a handover initiation message receiving from interface(210). The control unit generates an LCoA(Local Care-of Address) of the mobile node using the MAC address and the target base station ID of the mobile node and performs a binding update at the MAP(Mobile Anchor Point). A topology database(231) manages the information of neighboring access router and a base station managed by the neighboring access router.
Abstract:
An electronic device, a home network system and a method thereof for preventing the endless distribution of the digital contents are provided to prevent the endless distribution of the digital contents by preventing effectiveness of the endless distribution. An encryption key generator(10) produces an encryption key. A contents reproducer produces the second digital contents by converting a first digital contents generated by a contents reproduction unit into a preset data format. When the contents remaking part produces the second digital contents, a controller(20) controls the contents remaking unit in order that it is encrypted by the cryptographic key in which the second digital contents is generated with the encryption key generator.
Abstract:
제한된 네트워크 트래픽을 사용한 디스커버리 알고리즘 및 동적인 네트워크 환경에 적응하는 애드-혹 상에서 서비스 디스커버리 시스템 및 그 방법에 관한 것으로, 유비쿼터스 서비스 제공하는 애플리케이션 계층, 캐시 관리자(Cache Manager) 및 정책 관리자(Policy Manager)를 구비한 서비스 관리 계층 및 시스템간의 통신 및 서비스 전달을 실행하는 네트워크 통신 계층을 포함하며, 상기 캐시 관리자는 주변 노드들이 제공하는 서비스 정보를 저장하고 관리하기 위한 모듈이고, 정책 관리자는 유저의 선호도, 디바이스의 컴퓨팅 능력, 네트워크의 상태에 따라 서비스 광고에 대한 주기 결정, 서비스 캐시 갱신 정책, 네트워크를 통해 들어온 패킷에 대한 처리를 실행하는 모듈인 구성을 마련한다. 상기와 같은 애드-혹 상에서 우선순위 기반 적응적 디스커버리 시스템 및 그 방법을 이용하는 것에 의해, 애드-혹 네트워크의 높은 패킷 손실에 대항하여 빠르고 신뢰성 있는 서비스를 제공할 수 있다. 애드-혹, 네트워크, 서비스, 디스커버리, QoS, 캐시 관리
Abstract:
An adaptive discovery system based on a priority on an ad-hoc network and an adaptive discovery method are provided to dynamically regulate a caching strategy, a service period, and a network packet processing process by applying the priority on a network service based on popularity of the network service. An LSD(Lightweight Service Discovery) engine includes an application layer(100), a service management layer(200), and a network communication layer(300). The application layer provides an application for providing a ubiquitous service. At the service management layer, the LSD includes two main modules having a cache manager and a policy manager. The network communication layer includes a UDP(User Datagram Protocol)-based multicast module, a TCP(Transfer Control Protocol)-based unicast module, an HTTP(Hypertext Transfer Protocol) module, and an SOAP(Simple Object Access Protocol) module. A service discovery process is performed by using an XML(eXtensible Markup Language) structure.
Abstract:
An agent-based service discovery system, a service discovery method, and a recording medium storing the same are provided to offer more diversified services to users by creating discovery agents according to each service discovery protocol and to develop a new agent at a low cost by providing an API(Application Programming Interface) using a JADE(Java Agent DEvelopment Framework) agent platform. A JADE agent platform(10) in a discovery agent system comprises a discovery agent(110), an AMS(Agent Management System) agent(120), a DF agent(130), and a user agent(150). The discovery agent(110) converts the messages transmitted from different service discovery protocols and the messages used in the JADE agent platform(10) bidirectionally so that other agents in the JADE agent platform(10) can use them. The AMS agent(120) executes a management and monitoring function for other agents, and has a control right for the life cycles of agents. The DF agent(130) serves as a yellow page that stores the service lists received to the JADE agent platform(10). The user agent(150) interrogates to the DF agent(130) and executes as proxy so that a user can use a desired service.
Abstract:
본발명의실시예들에따라, 이종의무선비콘장치들에접속할수 있는무선비콘장치들관리하기위한통합관리시스템은, 무선비콘장치, 관리자단말기및 비콘관리서버를포함할수 있다. 관리자단말기는무선비콘장치를식별하고비콘관리서버에무선비콘장치에관한비콘설정서비스식별자의제공을요청하며, 비콘관리서버로부터제공된비콘설정서비스식별자를이용하여무선비콘장치를설정할수 있다. 비콘관리서버는관리자단말기로부터요청에응답하여, 무선비콘장치에관한비콘설정서비스식별자를관리자단말기에제공할수 있다.