• Title, Summary, Keyword: Conference Service

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Real-time Context Service Model Based on RFID for u-Conference (u-Conference를 위한 RFID 기반의 실시간 상황 서비스 모델)

  • Kang, Min-Sung;Kim, Do-Hyeun;Lee, Kwang-Man
    • IEMEK Journal of Embedded Systems and Applications
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    • v.2 no.2
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    • pp.95-100
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    • 2007
  • Recently ubiquitous application services are developed plentifully using RFID techniques in the field of distribution and security industries. However, except these field the applications using RFID are not mature yet. In this study, we proposed a real-time context service model of the u-conference based on the real-time contextual information acquired from conference and exposition. With collection of real-time contextual information for u-conference, the model can provide a lot of information services on the state of session attendee, doorway control, affairs, user certification, presentation progress etc. For the verification of proposed real-time context service model of u-conference, we design and implement the conference progress state service included the state of session attendee, user certification and presentation progress etc. This service provides the presentation state information included the current presenter, the paper list, the number of session attendee, the schedule and place of each session using the collecting RFID tag and the related information.

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Design and Implementation of SIP-based Multi-party Conference System Including Presence Service (Presence 서비스를 포함한 SIP 기반의 다자간 컨퍼런스 시스템의 설계 및 구현)

  • Jung Young-Myun;Ko Se-Lyung;Jang Choon-Seo;Jo Hyun-Gyu
    • The Journal of the Korea Contents Association
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    • v.5 no.2
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    • pp.257-266
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    • 2005
  • As developing of the internet and computer technology, more interests are gathered to the conference service which provides capability of multi-party real-time visual conference. In this paper, we have designed and implemented a SIP-based visual conference system which includes Presence service. The elements of this conference system are user system, which has conference UA(User Agent) capability, presence seuer and conference server. For the presence service, we have adapted publication method which uses SIP PUBLISH message, and with this service various status informations of users are easily acquired. Also invitations and involvements to the conference are easily made through this service. For the conference server which controls establishment and management of multi-party connections, we have included conference event package. This package provides dynamically changing conference informations and users informations through SIP subscription and notification functions.

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A Study on New Service Model Based on Centralized Conference Model in SIP Environment (SIP 환경에서의 중앙 집중형 컨퍼런스 모델 기반의 새로운 서비스 모델에 관한 연구)

  • Jo, Hyun-Gyu;Lee, Ki-Soo;Jang, Choon-Seo
    • The Journal of the Korea Contents Association
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    • v.6 no.2
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    • pp.17-26
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    • 2006
  • SIP(Session Initiation Protocol)-based centralized conference service model has advantage of easiness in conference management and service as compared to other models. However when media server which is one of the components of conference server is included in the conference server, this model shows disadvantage of high server work load with increasing numbers of conferences and participants. In this paper, to improve this problem, we have suggested and implemented a new conference service model in which an UA(User Agent) who first make the conference acts as a media server instead of conventional conference server and, the conference server with conference event package takes only part of management of the conference and its participants. Therefore, many more conferences can be held and managed compared to the conventional centralized conference service model because load of the conference server decreases in our suggested model md, furthermore the participants needs only make SIP call connections to the UA who first make the conference for establishing media session.

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A Multiple Servers Conference Service System by Media Control Channel/Distributed Conference Manipulation Architecture (미디어 제어 채널/분산 컨퍼런스 매니퓰레이션 구조에 의한 다중 서버 컨퍼런스 서비스 시스템)

  • Jang, Choonseo
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.12 no.3
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    • pp.224-230
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    • 2019
  • In this paper, a new multiple servers conference service system using media control channel/distributed conference manipulation architecture has been presented. This conference service system can handle loads effectively from many conference participants. In this suggested architecture, media control channels are established between conference server, and distributed conference manipulation messages for distributing system loads are exchanged through this channels. These messages are transported between servers using media control channel created after stable transport sessions, and can be used to process server loads according to participants effectively. So this method can be used to implement large scale conference service system. For these purposes, formats of distributed conference manipulation messages which transmitted through media control channels are designed. and messages exchange procedures between conference servers are also presented. The performance of the proposed conference service system has been analysed by experiments, and the results show that the performances are improved according to participants.

Service Quality Systems Related Ceremony (예식 서비스 관련 품질 시스템)

  • Choi, Sung-Woon
    • Proceedings of the Safety Management and Science Conference
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    • pp.469-474
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    • 2007
  • This study presents service quality systems such as wedding ceremony service, postpartum care service, funeral home services, crematory services, cemetry and charnel grave services, and charnel house services. These service quality systems include process, infrastructure, and terminology.

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