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Creating wireless communication functions by heterogeneous micro-node groups

Research Project

Project/Area Number 19H02191
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 21060:Electron device and electronic equipment-related
Research InstitutionTokyo Institute of Technology

Principal Investigator

Ito Hiroyuki  東京工業大学, 科学技術創成研究院, 准教授 (40451992)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2022: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2021: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2020: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2019: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Keywordsセンサネットワーク / IoT / 発振器型センサ回路 / カオス発振器 / 電子回路 / 無線通信回路 / センサーノード / 結合発振器 / センサノード / 無線通信
Outline of Research at the Start

最終目標は,超小型なセンサノードと無線ノードの群が相互作用により機能を創発し,一つの生物体のように振る舞い,センシングや無線通信,群知能的動作を行う「超個体システム」を実現することである.本申請では,その第一歩として,微小ノード群を協調動作させてセンサデータをメートルオーダの距離で無線伝送させるための回路・システム設計論の体系化を目指す.①複数の無線ノードが出力する微弱信号が,自動的に位相同期し,フェイズドアレイ技術のように空間内で合成して高出力化する手法と,②中継器の役割を担う無線ノード同士を相互に同期・協調動作させてアドホック的な無線通信をする技術を研究する.

Outline of Final Research Achievements

The purpose is to systematize the circuit and system design theory for cooperative operation of a group of sensor nodes. The idea that meaningful collective behavior can emerge by coupling chaotic oscillators was theoretically and experimentally investigated. Increased synchronization among nodes, dissipation, and relay effects were observed. The possibility of observing the hidden dynamics of a group of nodes by external excitation was demonstrated. A method for estimating the statistical distribution of measurements in a population of sensors using a small neural network was proposed. To reduce the size and power consumption of the nodes, an oscillator-type sensor circuit with low noise and low power consumption using Si CMOS technology and a wireless communication node utilizing backscattering technology were fabricated, and their operation was confirmed through actual measurements.

Academic Significance and Societal Importance of the Research Achievements

特に,発振器型センサの群としての機能創発に関して理論的かつ実験的に研究を進め,発振器群の信号の分析手法に関しても多くの研究成果が得られた.例えば,カオスダイナミクスにおける「不完全な同期」のもとで起こる創発・パターン形成現象に基づいたシンプルなアナログハードウエアによる計算技術などを発明した.この技術は,パターン検出用ハードウエアの低消費電力化や小型化に大きく貢献できる可能性がある.

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (15 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (1 results) Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (4 results) (of which Int'l Joint Research: 2 results) Remarks (4 results)

  • [Int'l Joint Research] University of Trento/University of Catania/Fondazione Bruno Kessler(イタリア)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Low-power and high-resolution capacitance sensing using CMOS inverter-based RC oscillator by employing voltage-integration feedback2023

    • Author(s)
      Li Zixuan、Lee Sangyeop、Ishihara Noboru、Ito Hiroyuki
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 62 Issue: SC Pages: SC1096-SC1096

    • DOI

      10.35848/1347-4065/acbd58

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Synchronization phenomena in dual-transistor spiking oscillators realized experimentally towards physical reservoirs2022

    • Author(s)
      Minati Ludovico、Bartels Jim、Li Chao、Frasca Mattia、Ito Hiroyuki
    • Journal Title

      Chaos, Solitons & Fractals

      Volume: 162 Pages: 112415-112415

    • DOI

      10.1016/j.chaos.2022.112415

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Mechanisms of chaos generation in an atypical single-transistor oscillator2022

    • Author(s)
      Minati Ludovico、Innocenti Giacomo、Mijatovic Gorana、Ito Hiroyuki、Frasca Mattia
    • Journal Title

      Chaos, Solitons & Fractals

      Volume: 157 Pages: 111878-111878

    • DOI

      10.1016/j.chaos.2022.111878

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Incomplete synchronization of chaos under frequency-limited coupling: Observations in single-transistor microwave oscillators2022

    • Author(s)
      Minati Ludovico、Li Boyan、Bartels Jim、Li Zixuan、Frasca Mattia、Ito Hiroyuki
    • Journal Title

      Chaos, Solitons & Fractals

      Volume: 165 Pages: 112854-112854

    • DOI

      10.1016/j.chaos.2022.112854

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Distributed sensing via the ensemble spectra of uncoupled electronic chaotic oscillators2022

    • Author(s)
      Ludovico Minati, Korkut Kaan Tokgoz, Hiroyuki Ito
    • Journal Title

      Chaos, Solitons & Fractals

      Volume: 155 Pages: 111749-111749

    • DOI

      10.1016/j.chaos.2021.111749

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Distributed Sensing Via Inductively Coupled Single-Transistor Chaotic Oscillators: A New Approach and Its Experimental Proof-of-Concept2020

    • Author(s)
      Ludovico Minati, Korkut Kaan Tokgoz, Mattia Frasca, Yasuharu Koike, Leonardo Ricci, Natsue Yoshimura, Kazuya Masu, and Hiroyuki Ito,
    • Journal Title

      IEEE Access

      Volume: 8 Pages: 36536-36555

    • DOI

      10.1109/access.2020.2976139

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Capacitive Sensor Circuit with Relative Slope-Boost Method Based on a Relaxation Oscillator2021

    • Author(s)
      Ryo Onishi, Koki Miyamoto, Korkut Kaan Tokgoz, Noboru Ishihara, Hiroyuki Ito
    • Organizer
      The 26th Asia and South Pacific Design Automation Conference
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Current-Starved Chaotic Oscillator Over Multiple Frequency Decades on Low-Cost CMOS2021

    • Author(s)
      Korkut Kaan Tokgoz, Ludovico Minati, Hiroyuki Ito
    • Organizer
      The 26th Asia and South Pacific Design Automation Conference
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] インピーダンス変換回路によるRFバックスキャッタリング信号レベルの改善2020

    • Author(s)
      渡邉伊織,石原 昇,伊藤 浩之
    • Organizer
      短距離無線通信研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] インピーダンス変換回路による RFバックスキャッタリング信号レベルの改善2020

    • Author(s)
      渡邉 伊織,石原 昇,伊藤 浩之
    • Organizer
      電子情報通信学会総合大会
    • Related Report
      2019 Annual Research Report
  • [Remarks] Finding Order Using Chaos

    • URL

      https://www.titech.ac.jp/english/news/2022/064682

    • Related Report
      2022 Annual Research Report
  • [Remarks] The whole in a part

    • URL

      https://www.titech.ac.jp/english/news/2022/065324

    • Related Report
      2022 Annual Research Report
  • [Remarks] Just Listen to the Chaos

    • URL

      https://www.titech.ac.jp/english/news/2022/062916

    • Related Report
      2021 Annual Research Report
  • [Remarks] Many Buds to a Blossom

    • URL

      https://www.titech.ac.jp/english/news/2020/046529.html

    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2024-01-30  

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