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チップスケール原子時計による次世代情報システム

Research Project

Project/Area Number 20650009
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field Computer system/Network
Research InstitutionNational Institute of Informatics

Principal Investigator

佐藤 一郎  国立情報学研究所, アーキテクチャ科学研系, 教授 (80282896)

Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2010: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2009: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2008: ¥1,600,000 (Direct Cost: ¥1,600,000)
Keywords原子時計 / 分散システム / 分散アルゴリズム / 同期系 / 時刻合わせ / 通信遅延
Research Abstract

今後、原子時計の小型化&安価化により、チップスケール原子時計(Chip Scale Atomic Clock)がさまざまな電子機器に内蔵されることが予想される。既存の電子機器間の通信プロトコルや分散アルゴリズムの内蔵時計の計時精度は相違・誤差を想定しているが、計時精度はほぼ正確かつ一致することになる。本年度は原子時計による時刻合わせアルゴリズムを設計した。本来、相対的な計時精度は一致しても、絶対的な時刻の一致には明示的なアルゴリズムが必要となるからである。具体的にはNetwork Time Protocolと同様に通信によるものと、GPSによる時刻情報を利用したものである。また、これらはTDoA方式、つまり電波の到着時間差による測位手法に応用できることになる。研究期間中では測位システム自体への導入は間に合わなかったが、原子時計による高精度なTDoA方式を想定した位置検出サービスの実験を行い、それを論文にまとめた。また、原子時計を想定した同期及び相互排除アルゴリズムを開発し、それらを論文としてまとめた。

Report

(3 results)
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (14 results)

All 2011 2010 2009 2008

All Journal Article (7 results) (of which Peer Reviewed: 7 results) Presentation (7 results)

  • [Journal Article] Design and Implementation of Context-Aware Museum Guide Agents2010

    • Author(s)
      Ichiro Satoh
    • Journal Title

      IEICE Transactions on Information and Systems

      Volume: 93-D Pages: 789-799

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Location-aware Communications in Smart Environments2009

    • Author(s)
      Ichiro Satoh
    • Journal Title

      Information Systems Frontiers(Springer) Vol.11, No.5

      Pages: 501-512

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Modeling and Processing Information for Context-Aware Computing : A Survey2009

    • Author(s)
      Christian Hoareau, Ichiro Satoh
    • Journal Title

      New Generation Computing Vol.27

      Pages: 177-196

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A visual framework for deploying and managing context-aware services2009

    • Author(s)
      Ichiro Satoh
    • Journal Title

      International Journal of Pervasive Computing and Communication (掲載確定) Vol. 4-No. 4(印刷中)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Formal Approach for Milk-run Transport Logisties2009

    • Author(s)
      Ichiro Satoh
    • Journal Title

      IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences Vol. E91-A, No. 11

      Pages: 3261-3268

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Spatial Communication Model for Ubiquitous Computing Services2008

    • Author(s)
      Ichiro Satoh
    • Journal Title

      Journal of Networks Vol. 3, No. 4

      Pages: 10-20

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Spatial Communication Model for Ubiquitous Coraputing Services2008

    • Author(s)
      Ichiro Satoh
    • Journal Title

      Journal of Networks Vol. 3, No. 4

      Pages: 10-20

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] Coordination and Deployment of Mobile Agents on Dependable Systems2011

    • Author(s)
      Ichiro Satoh
    • Organizer
      Third International Conference on Dependability (DEPENDE 2010)
    • Place of Presentation
      Mestre(イタリア)
    • Year and Date
      2011-07-21
    • Related Report
      2010 Annual Research Report
  • [Presentation] Context-Aware Services for Groups of People2011

    • Author(s)
      Ichiro Satoh
    • Organizer
      International Conference on Pervasive and Embedded Computing and Communication Systems
    • Place of Presentation
      Faro(ポルトガル)
    • Year and Date
      2011-03-06
    • Related Report
      2010 Annual Research Report
  • [Presentation] Test-bed Platform for Bio-inspired Distributed Systems2008

    • Author(s)
      Ichiro Satoh
    • Organizer
      3rd International Conference on Bio-Inspired Models of Network, Information, and Computing Systems (BIONETICS' 2008)
    • Place of Presentation
      兵庫県
    • Year and Date
      2008-11-28
    • Related Report
      2008 Annual Research Report
  • [Presentation] Context-aware Deployment of Services in Public Spaces2008

    • Author(s)
      Ichiro Satoh
    • Organizer
      6th IFIP Workshop on Software Technologies for Future Embedded & Ubiquitous Systems (SEUS'2008)
    • Place of Presentation
      Capri, Italy
    • Year and Date
      2008-10-02
    • Related Report
      2008 Annual Research Report
  • [Presentation] Context-aware Agents to Guide Visitors in Museums2008

    • Author(s)
      Ichiro Satoh
    • Organizer
      8th International Conference Intelligent Virtual Agents (IVA'08)
    • Place of Presentation
      東京
    • Year and Date
      2008-09-03
    • Related Report
      2008 Annual Research Report
  • [Presentation] Experience of Context-aware Services in Museums2008

    • Author(s)
      Ichiro Satoh
    • Organizer
      ACM International Conference on Pervasive Services (ICPS'2008)
    • Place of Presentation
      Sorrento, Italy
    • Year and Date
      2008-07-09
    • Related Report
      2008 Annual Research Report
  • [Presentation] A Specification Framework for Earth-friendly Logistics2008

    • Author(s)
      Ichiro Satoh
    • Organizer
      28th IFIP WG6. 1 International Conference on Formal Techniques for Networked and Distributed Systems (FORTE'2008)
    • Place of Presentation
      東京
    • Year and Date
      2008-06-12
    • Related Report
      2008 Annual Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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