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A Study of Network Management Protocol for Connected Cars

Research Project

Project/Area Number 19K24353
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 1001:Information science, computer engineering, and related fields
Research InstitutionChuo University

Principal Investigator

Yoshida Masahiro  中央大学, 国際情報学部, 准教授 (60785913)

Project Period (FY) 2019-08-30 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsエッジコンピューティング / コネクテッドカー / 自動運転 / ネットワーク制御 / モバイル網 / ハンドオフ / IoT
Outline of Research at the Start

我が国の超高齢化と労働人口の減少が進む中で、自動車の自動運転技術を実現することは極めて重要である。本研究では、コネクテッドカーが高速道路を80km/h以上で走行する際に大規模計算機基盤との接続が不安定になるという課題に対し、高速移動時の自動運転制御の安定性を向上するためのネットワーク制御方式の研究を行う。携帯電話基地局のエリア切り替え(ハンドオフ)時に通信品質が劣化しやすいため、複数の通信事業者のネットワーク帯域を合成させる工夫と、電波強度や位置情報からハンドオフのタイミングを予測する工夫により、高速移動時の通信遅延時間を200%以上高速化する技術を確立する。

Outline of Final Research Achievements

Connected cars generate a huge amount of Internet of Things (IoT) sensor information called Controller Area Network (CAN) data. Although each CAN data packet is very small, a connected car generates thousands of CAN data packets per second. Therefore, real-time CAN data collection from connected cars to a cloud system is one of the most challenging problems in the current IoT. In this paper, we propose an Edge computing-enhanced network Redundancy Elimination service (EdgeRE) for CAN data collection. In developing EdgeRE, we design a CAN data compression architecture that combines in-vehicle computers, edge datacenters, and a public cloud system. EdgeRE includes the idea of a hierarchical data compression and dynamic data buffering at edge datacenters for real-time CAN data collection. Across a wide range of field tests with connected cars and an edge computing testbed, we show that the EdgeRE reduces the bandwidth usage by 88% and the number of packets by 99%.

Academic Significance and Societal Importance of the Research Achievements

本研究は、コストの安い既存の携帯電話網を自動運転に活用するという点で研究成果の実現性が高く、コネクテッドカーが高速移動する際の携帯電話網の通信品質の安定化、高信頼化に役立つ通信プロトコルを実現するという点で社会への波及効果が期待できる。また、本研究は、先進国だけでなく、携帯電話網の通信品質が不安定な発展途上国において自動運転の早期実用化につながるため、社会的に大きな意味を持つ。

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (14 results)

All 2021 2020 2019

All Journal Article (3 results) Presentation (1 results) (of which Invited: 1 results) Book (2 results) Patent(Industrial Property Rights) (8 results) (of which Overseas: 8 results)

  • [Journal Article] Report on the 2020 NS English Session Awards and Award Ceremony2021

    • Author(s)
      A. Nakao, T. Oishi, S. Mizuno, S. Kawano and M. Yoshida
    • Journal Title

      IEICE Communication Society Global Newsletter

      Volume: 45 Pages: 1-4

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Report on NS English Session at 2021 IEICE General Conference - BS-7: AI technologies and their applications for future network systems and services -2021

    • Author(s)
      K. Kanai, M. Yoshida, S. Kawano, S. Mizuno, and A. Nakao
    • Journal Title

      IEICE Communication Society Global Newsletter

      Volume: 45 Pages: 1-4

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Annual Report of Technical Committee on Network Systems2021

    • Author(s)
      A. Nakao, T. Oishi, Y. Okazaki, S. Mizuno, M. Yoshida and Y. Tanigawa
    • Journal Title

      IEICE Communication Society Global Newsletter

      Volume: 44 Pages: 1-4

    • Related Report
      2020 Annual Research Report
  • [Presentation] 2020年度ネットワークシステム研究会における研究動向報告2021

    • Author(s)
      吉田雅裕,河野伸也,水野士郎
    • Organizer
      電子情報通信学会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Book] AIリテラシー2021

    • Author(s)
      岡嶋裕史, 吉田雅裕
    • Total Pages
      300
    • Publisher
      技術評論社
    • Related Report
      2020 Annual Research Report
  • [Book] 国際情報学入門2020

    • Author(s)
      中央大学国際情報学部編
    • Total Pages
      300
    • Publisher
      ミネルヴァ書房
    • ISBN
      9784623089789
    • Related Report
      2019 Research-status Report
  • [Patent(Industrial Property Rights)] COMMUNICATION RANGE CONTROL DEVICE, METHOD, AND PROGRAM2021

    • Inventor(s)
      Masahiro Yoshida et al.
    • Industrial Property Rights Holder
      Masahiro Yoshida et al.
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2020 Annual Research Report
    • Overseas
  • [Patent(Industrial Property Rights)] DATA COMPRESSION APPARATUS, DATA COMPRESSION METHOD, AND PROGRAM2021

    • Inventor(s)
      Masahiro Yoshida et al.
    • Industrial Property Rights Holder
      Masahiro Yoshida et al.
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2020 Annual Research Report
    • Overseas
  • [Patent(Industrial Property Rights)] DATA COMPRESSION TRANSMISSION SYSTEM, INTERMEDIATE SERVER, METHOD, AND PROGRAM2021

    • Inventor(s)
      Masahiro Yoshida et al.
    • Industrial Property Rights Holder
      Masahiro Yoshida et al.
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2020 Annual Research Report
    • Overseas
  • [Patent(Industrial Property Rights)] DISTRIBUTED PROCESSING SUPPORT APPARATUS, DISTRIBUTED PROCESSING SUPPORT METHOD, AND PROGRAM2021

    • Inventor(s)
      Masahiro Yoshida et al.
    • Industrial Property Rights Holder
      Masahiro Yoshida et al.
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2020 Annual Research Report
    • Overseas
  • [Patent(Industrial Property Rights)] NETWORK MANAGEMENT SYSTEM, MANAGEMENT DEVICE, RELAY DEVICE, METHOD, AND PROGRAM2021

    • Inventor(s)
      Masahiro Yoshida et al.
    • Industrial Property Rights Holder
      Masahiro Yoshida et al.
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2020 Annual Research Report
    • Overseas
  • [Patent(Industrial Property Rights)] データ圧縮装置、圧縮方法、およびプログラム2019

    • Inventor(s)
      高木雅, 松尾和哉, 吉田雅裕, ほか
    • Industrial Property Rights Holder
      高木雅, 松尾和哉, 吉田雅裕, ほか
    • Industrial Property Rights Type
      特許
    • Filing Date
      2019
    • Related Report
      2019 Research-status Report
    • Overseas
  • [Patent(Industrial Property Rights)] 分散処理支援装置、分散処理支援方法およびプログラム2019

    • Inventor(s)
      松尾和哉, 吉田雅裕, 森航哉, 田中裕之
    • Industrial Property Rights Holder
      松尾和哉, 吉田雅裕, 森航哉, 田中裕之
    • Industrial Property Rights Type
      特許
    • Filing Date
      2019
    • Related Report
      2019 Research-status Report
    • Overseas
  • [Patent(Industrial Property Rights)] 通信範囲制御装置、方法及びプログラム2019

    • Inventor(s)
      吉田雅裕, 井上知洋, 森航哉, 田中裕之
    • Industrial Property Rights Holder
      吉田雅裕, 井上知洋, 森航哉, 田中裕之
    • Industrial Property Rights Type
      特許
    • Filing Date
      2019
    • Related Report
      2019 Research-status Report
    • Overseas

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Published: 2019-09-03   Modified: 2022-01-27  

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