Abstract:
PURPOSE: A communication method and system using a global ID for internet of things (IoT) are provided to perform seamless communication regardless of protocol difference or the existence of an Internet protocol (IP) between objects arranged on a plurality of different lower networks. CONSTITUTION: IoT (200) comprises at least one object (SN), at least one thing's profile service (TPS) server (TPS), at least one thing's identification service (TIDS) server (TIDS), at least one domain name service (DNS) server (DNS), at least one dynamic domain name service (DDNS) server (DDNS), and at least one thing's application level protocol (TALP) adapter (TALPA). The object is allocated with a global ID, a domain name, and an IP address. The TPS server maps and stores a profile including a global ID for each object, a type of service which the object supports, and protocol information which the object uses. The TIDS server maps and stores the global ID and domain name of the object and the IP address of the TPS server. The DNS server matches and stores the domain name and IP address of the object. The TALP adapter converts a protocol into a TALP, application layer protocol, and transmits the TALP so that an object included in a lower network (210-230) can communicate with the other object regardless of a type of the lower network.
Abstract:
PURPOSE: An IP-based IOT browsing technology and network relay technology based heterogeneous network relay device, a method thereof, and a user terminal using the same are provided to use data commonly applied to sensor nodes through an internet having available resource. CONSTITUTION: An IP(Internet Protocol) search unit(110) searches for an IP address of a sensor node(310). If a communication performing request is received from a user terminal(200), a fixed contents supply unit(130) supplies data commonly applied to sensor nodes to the user terminal. A communication relay unit(120) transmits a signal requesting sensing data of the sensor node to the sensor node through a first network. The communication relay unit transmits a response signal to the user terminal. [Reference numerals] (110) Fixed contents supply unit; (120) Communication relay unit; (130) IP search unit; (140) IP update unit
Abstract:
PURPOSE: A vehicle location measurement method and a vehicle location measurement device using the same are provided to improve the accuracy in the location measurement by measuring the earth magnetism at two or more different axes to grasp a critical point. CONSTITUTION: A sensor unit(110) measures the earth magnetism and measures the earth magnetism according to a movement of a vehicle. A central processing unit(130) controls the sensor unit and measures the location of the vehicle according to the measured value of the sensor unit. The central processing unit measures the location by grasping a critical point of the measured value of the earth magnetism. A communication unit(140) transmits the location of the vehicle measured through the central processing unit to the outside. Two axes of two or more different axes are two difference axes perpendicular to an X-axis.
Abstract:
OpenMP 프로그램에서 자료 경합을 탐지하기 위한 방법, 시스템, 및 기록 매체가 개시된다. 본 발명에 따른 경합 탐지 시스템은 사용자로부터 경합 탐지 대상인 프로그램의 원시 코드 및 경합 탐지를 수행할 분석 속성을 수신하고, 소정의 네트워크를 통하여 서버로부터 수신된 경합 탐지 결과를 출력하는 클라이언트 및 네트워크에 접근 가능하며, 분석 속성에 따라서 프로그램의 수행중에 경합을 탐지하여 경합 탐지 결과를 생성하는 서버를 포함한다. 서버는 분석 속성에 따른 경합 탐지를 위하여 원시 코드를 변형시켜 변형된 목적 코드를 생성하는 전처리부와 변형된 목적 코드의 실행중 생성되는 복수 개의 병행 스레드에 대한 접근 사건들을 동기화 명령어 포함 여부를 기준으로 분류하고, 공유 변수에 대한 각 접근 사건들 중 접근 역사에 저장된 이전의 접근 사건과 병행성 관계에 있는 접근 사건을 경합으로 탐지하여 경합 탐지 결과를 생성하기 위한 수행중 분석부(on-the-fly analyzer)를 포함한다. 본 발명에 의하여 병렬 프로그램의 자료 경합을 효과적으로 탐지하고, 탐지 결과를 직관적으로 이해되도록 시각화할 수 있다. OpenMP 병렬 프로그램, 경합 검증, 3차원 확장적 시각화, 병행성 관계, 레이블링, 프로토콜, 합성 프로그램
Abstract:
PURPOSE: A multi-hop global time synchronization method for efficiently synchronizing a time is provided to remove inconvenience that an additional device or all nodes must be connected to the Internet. CONSTITUTION: A time is synchronized between a gateway and a server in the wide area network according to one algorithm among NTP(Network Time Protocol) and SNTP(Simple Network Time Protocol). The visual information is broadcasted from gateway to the sensor node. The broadcast time delay is calculated(S130). The time synchronization require-message is transmitted from the sensor node to gateway. The request time delay is calculated. The time of sensor nodes is synchronized through the broadcast time delay and request time delay(S170).