• Title, Summary, Keyword: Connection Information

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Improvement of Information Connection System among Traffic Information Centers (교통정보센터 간 정보 연계체계 개선방안)

  • Lim, Sung Han
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.13 no.2
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    • pp.34-41
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    • 2014
  • The purpose of this study is to present the improvement of connection system between traffic information centers for reliable traffic information service. We recognized traffic information error caused by too much time in conjunction between traffic information centers, lack of reliability of traffic information caused by absence of generation time and generation institution of traffic information. We presented minimization methods of connection time, improvement methods of reliability of traffic information and development methods of connection state management system.

A Study on PML Messaging Service Based on EPC for Logistics Information System Connection (물류정보시스템 연계를 위한 EPC 기반 PML 메시징 서비스에 관한 연구)

  • Jung Kwang-Cuhl;Park Jeong-Sun;Cho Hong-Ki
    • The Journal of Society for e-Business Studies
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    • v.10 no.3
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    • pp.37-48
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    • 2005
  • Though many corporations are operating their logistics information systems, standard document forms for the connection of logistics information systems between transaction companies are not provided. Therefore, the standardized logistics information connection is needed for the efficient management. In this study, we Provide a prototype for logistics information systems connection by using e-mail which contains RFID and product information. This study could be a basis for logistics information system connection with the advance of RFID.

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A connection caching technique using host grouping (호스트 그루핑을 이용하는 연결 캐슁 기법)

  • 양수미;조유근
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.21 no.9
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    • pp.2373-2384
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    • 1996
  • Connection caching technique is widely used to reduce the overhead incurred by frequency connection establishment in distributed computing environment using connection oriented protocol. We present an efficient connection caching scheme where we divide the system into several host groups and connection between the hosts in the same group is kept prior to others. In other words it makes the connection kept longer by sharing the connection use information between hosts in the same group. Every host group consists of hosts which have heavy intercommunication. And we present performance evaluation of the effect of host grouping upon connection caching and performance comparison of various grouping in several aspects includingmeanservice request interarrival time, mean service time, group size, grouping and type of group. Simulation results show that host grouping is effective in evrey performance criterion and proper grouping of hosts enhances the performance. We also present analysis results for Markov process model of our scheme which are consistent with the simulation results.

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A Study on the Construction of Service-oriented Connection Model among National GeoSpatial Information Platforms (서비스 중심의 국가 공간정보 플랫폼 연계 방안에 관한 연구)

  • Kim, Byeongsun;Ahn, Jong Wook;Shin, Dong Bin
    • Spatial Information Research
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    • v.22 no.2
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    • pp.11-18
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    • 2014
  • The aim of this study is to propose service-oriented connection model among National Geospatial Information Platforms(NGIPs). For this, the study analyzes the necessity of NGIPs connection and extracts the issues related to the connection among NGIPs through Industrial-University-Institute experts survey. Based on this analysis, this study constructs service-oriented connection model for NGIPs, so called Single Point Access model and proposes the policy and technological counterplan to realize this model. This study result can be applied to establish a platform government based on geospatial information, policy for NGIP, and the national Information plan.

Explicit Rate Allocation Algorithsm using the Connection Setup Information in ATM Networks (ATM 망에서 호 설정 정보를 이용한 명시적 전송률 할당 알고리즘)

  • 김대일;김중민;박인갑
    • Proceedings of the IEEK Conference
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    • pp.379-382
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    • 2001
  • In this paper, a new enhanced early fair rate allocation(EFRA+) algorithm is proposed for ATM switches supporting ABR service. The central issue of explicit rate control algorithms for ABR service is the computation of max-min fair rates for every connection. The EFRA+ inherits the main feature of the EFRA, uses the connection control information during the connection setup to prevent potential congestion in switches, and enhances the computation method of the max-min fair rate.

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An efficient signaling protocol for point-to-point multi-connection call in B-ISDN (B-ISDN에서 점 대 점 다중연결 호를 위한 효율적인 신호프로토콜)

  • 배상재;조현철;주언경
    • Journal of the Korean Institute of Telematics and Electronics S
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    • v.34S no.12
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    • pp.1-9
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    • 1997
  • The signaling protocol for B-ISDN should support variety of services including point-to-pont single-connection call, point-to-point multi-connection call and point-to-multipoint connection call. an efficient signaling protocol for point-to-point multi-connection call based on ITU-T Recommendation Q.298X is presented in this paper. Sequential establishment of madatory and optional connections and common routing scheme for synchronization, along with separation of information elements for establishement of multi-connection call are included in the proposed signaling protocol. Limited network resources can be used more efficiently by proposed sequential establishement of mandartory and optional connection for point-to-point multi-connection call which can provide multimedia services. And common routing can be provided effectively by proposed common routing scheme for connectios requiring synchronization like as video-phone and video-conference.

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Combination-mode BLE Device Profile for Connection & Non-connection Methods

  • Jiang, Guangqiu;Joe, Inwhee
    • Proceedings of the Korea Information Processing Society Conference
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    • pp.897-899
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    • 2016
  • In recent years, BLE technology has received extensive attention and has been applied to all aspects of life. The existing BLE device has two methods, one is the connection method, and the other is a non-connection method. The representative profile of the connection method is the proximity file. The most typical example of Non-connection method BLE device is a beacon. However, they are both independent and have their own shortcomings. Connection method device can provide service for only one user, others can't use. Security performance of Non-connection method BLE device is poor and the device can't be controlled by the user. In this paper, a combination-mode BLE device profile design scheme is presented, which combines with the previous two methods, and solves the defaults. And We define a dual purpose advertising package that can be used in a normal environment as well as in a disaster environment. Finally, a unidirectional Control idea is proposed. Through performance evaluation, we found that the device has strong stability and low power consumption.

Research on an Effective Plan for Data Association Among Administrative Organizations for College Information Disclosure (대학정보공시를 위한 관리기관간 자료연계 내실화 방안 연구)

  • Lee, Gwang-Su;Ahn, Seong-Jin;Park, Jin-Sub
    • The Journal of Korean Association of Computer Education
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    • v.13 no.2
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    • pp.71-80
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    • 2010
  • This study has its purpose on analyzing the problems of data connection between general management institution and itemized management institution shown through the college information disclosure project and presenting the plan to substantialize data connection between general management institution and itemized management institution. To make close inquiry into the related problem and induce plans for substantialization, this study analyzed the previous related research data as well as the connection status of information disclosure item of Korea Foundation for the Promotion of Private School, the itemized management institution, to induce problems; induced substantialization plan for data connection of itemized connection institution. As for the substantialization plan based on such, plan to integrate schools and department codes, plan to automatize data connection and plan to secure reliability of information were established. It is anticipated that the plan to substantialize data connection between management institutions reckoned through the result of this study would be used as the basic data for information disclosure project providing various reliable information from Ministry of Education, Science and Technology, General management institution, itemized management institution and college.

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Design and Implementation of Performance Diagnosis Tool for DB Connection Pool Management (DB Connection Pool 관리를 위한 성능 진단도구의 설계 및 구현)

  • Lee, Jae-Hwan;Jung, In-Hwan
    • Proceedings of the Korea Information Processing Society Conference
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    • pp.1507-1510
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    • 2003
  • 웹 어플리케이션 개발 시 데이터베이스 시스템의 사용이 증가함에 따라 데이터베이스 시스템에 접속하는 커넥션 리소스 관리에 대한 중요성이 부각되고 있다. 본 논문은 웹 어플리케이션 구축 시 사용하는 데이터베이스 접속 풀(Database connection Pool)의 성능을 평가하고 진단하는 도구를 제안한다. 본 도구는 성능 및 진단을 통하여 웹 어플리케이션에 가장 적합한 최적화된 DB 커넥션 풀을 최적화하는 방법을 제시한다. 아울러 제안된 도구를 사용한 효과적인 데이터베이스 접속 풀(Database Connection Pool)의 관리 결과에 대하여 기술한다.

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Ethernet Connection for Bluetooth Piconet (Bluetooth Piconet을 위한 Ethernet 접속구현)

  • 백수열;김영길;김종현
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.876-879
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    • 2003
  • Bluetooth is the wireless solution which lay emphasis on Short Range, Low Power, Low Cost using a 2.4GHz frequency hopping. And the wireless interface of digital machinery and the various application studies, which are based on that, is making progress lively. This paper provides "Ethernet Connection for Bluetooth Piconet". Ethernet Connection is usually used in our life and can make the Connection of Internet for Bluetooth Piconet. Therefore, this system forms the basis of "Home or Office Remote Control System".

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