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Positioning system using spread spectrum sound for decentralized control of multi small robots

Research Project

Project/Area Number 20K20374
Project/Area Number (Other) 18H05364 (2018-2019)
Research Category

Grant-in-Aid for Challenging Research (Pioneering)

Allocation TypeMulti-year Fund (2020)
Single-year Grants (2018-2019)
Review Section Medium-sized Section 41:Agricultural economics and rural sociology, agricultural engineering, and related fields
Research InstitutionKyoto University

Principal Investigator

Kondo Naoshi  京都大学, 農学研究科, 教授 (20183353)

Co-Investigator(Kenkyū-buntansha) 中西 弘明  京都大学, 工学研究科, 講師 (50283635)
Project Period (FY) 2018-06-29 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥25,870,000 (Direct Cost: ¥19,900,000、Indirect Cost: ¥5,970,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2019: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2018: ¥15,210,000 (Direct Cost: ¥11,700,000、Indirect Cost: ¥3,510,000)
Keywordsスペクトル拡散音波 / 複合航法 / 慣性航法システム / 測位システム / モーションキャプチャ / INS / 測位 / 複合航法システム / ドローン / 農業用ロボット / 農業ロボット / 農作業ロボット
Outline of Research at the Start

本研究の最終目標は,収穫作業の自動化の実利用を小型分散ロボットの協調作業で達成しようとするものである。本研究では,その一例としてイチゴの土耕外成り栽培を対象とし,収穫・運搬の協調作業を小型車両ロボットと小型飛行ロボットで実現可能な制御システムを想定しており,車両ロボットで収穫を,飛行ロボットでトレイの運搬ならびに作物モニタリングを行う。そのために,室内の非GPS環境下において自律作業を行う小型分散作業ロボットのための航法システムの開発を行う。特に,衛星等を用いたGPSの代わりにスペクトル拡散音波(SS音波)測位システムを用いることを特徴とする。

Outline of Final Research Achievements

The navigation system to realize decentralized control of multi small robots under GPS denied environment has been developed in this research. The hardware for hybrid navigation system using spread spectrum (SS) sound positioning system and inertial navigation system was constructed. And, The signal processing methods were developed such as SS sound interference reduction, sound velocity compensation, Doppler shift compensation and so on. Moreover, new hybrid processing method was developed. The static positioning and direction accuracy in 8 x 22 m green house were within 55 mm and 1.58±0.86°. The dynamic positioning accuracy using crawler type and multi-copter-type robots were within about 50 mm and 74 mm.

Academic Significance and Societal Importance of the Research Achievements

世界人口の増加により食料需要が増す一方で、生産者の高齢化および減少が進む中、食料生産の省力化および自動化を実現する技術に期待が高まっている。RTK-GPSなどを利用した航法システムによりロボットトラクタなどが実用化されたが、グリーンハウス内や中山間地域などではGPSが使用し難く、小規模農地などではロボット農機が高価であることから導入が進んでいない。本研究では、非GPS環境でも対応し、比較的安価なシステムを構築できるスペクトル拡散音波測位システムを用いた航法システムを開発した。これにより、複数の小型ロボットを協調制御して農作業を行わせることで、比較的安価なロボット農機が実現できると期待できる。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (12 results)

All 2021 2020 2019 2018

All Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results,  Open Access: 1 results) Presentation (6 results) (of which Int'l Joint Research: 4 results,  Invited: 5 results)

  • [Journal Article] Spread Spectrum Sound with TDMA and INS Hybrid Navigation System for Indoor Environment2021

    • Author(s)
      Romprakhun Tientadakul, Hiroaki Nakanishi, Tomoo Shiigi, Zichen Huang, Lok Wai Jacky Tsay, and Naoshi Kondo
    • Journal Title

      Journal of Robotics and Mechatronics

      Volume: 33 Issue: 6 Pages: 1315-1325

    • DOI

      10.20965/jrm.2021.p1315

    • NAID

      130008131096

    • ISSN
      0915-3942, 1883-8049
    • Year and Date
      2021-12-20
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A sound-based positioning system with centimeter accuracy for mobile robots in a greenhouse using frequency shift compensation2021

    • Author(s)
      Zichen Huang, Tomoo Shiigi,Lok Wai Jacky Tsay, Hiroaki Nakanishi, Tetsuhito Suzuki, Yuichi Ogawa, Naoshi Kondo
    • Journal Title

      Computers and Electronics in Agriculture

      Volume: 187 Pages: 106235-106235

    • DOI

      10.1016/j.compag.2021.106235

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A Noise Tolerant Spread Spectrum Sound-Based Local Positioning System for Operating a Quadcopter in a Greenhouse2020

    • Author(s)
      Huang Zichen、Tsay Lok Wai Jacky、Shiigi Tomoo、Zhao Xunyue、Nakanishi Hiroaki、Suzuki Tetsuhito、Ogawa Yuichi、Kondo Naoshi
    • Journal Title

      Sensors

      Volume: 20 Issue: 7 Pages: 1981-1981

    • DOI

      10.3390/s20071981

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Position and orientation measurement system using spread spectrum sound for greenhouse robots2020

    • Author(s)
      Zichen Huang, Tsay L.W. Jacky, Xunyue Zhao, Hiroki Fukuda, Tomoo Shiigi*, Hiroaki Nakanishi, Tetsuhito Suzuki, Yuichi Ogawa, Naoshi Kondo
    • Journal Title

      BIOSYSTEMS ENGINEERING

      Volume: 198 Pages: 50-62

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Temperature-Compensated Spread Spectrum Sound-Based Local Positioning System for Greenhouse Operations2020

    • Author(s)
      Tsay Lok Wai Jacky、Shiigi Tomoo、Huang Zichen、Zhao Xunyue、Suzuki Tetsuhito、Ogawa Yuichi、Kondo Naoshi
    • Journal Title

      IoT

      Volume: 1 Issue: 2 Pages: 147-160

    • DOI

      10.3390/iot1020010

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Greenhouse Based Orientation Measurement System using Spread Spectrum Sound2018

    • Author(s)
      Zichen Huang, Hiroki Fukuda,Tsay LokWai Jacky,Xunyue Zhao,Harshana Habaragamuwa,Tomoo Shiigi,Tetsuhito Suzuki,Kondo Naoshi
    • Journal Title

      IFAC-PapersOnLine

      Volume: 51(17) Issue: 17 Pages: 108-111

    • DOI

      10.1016/j.ifacol.2018.08.070

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Indoor Navigation System by Combining Ultrasonic Wave TOA and Inertial Measurement2020

    • Author(s)
      Romprakhun Tientadakul, Hiroaki Nakanishi, Tomoo Shiigi, Zichen Huang, Lok Wai Jacky Tsay, and Naoshi Kondo
    • Organizer
      SICE Annual Conference 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] ロボットフォトニクス産業 (一次産業分野)の創出を目指して2019

    • Author(s)
      近藤直
    • Organizer
      経済産業省近畿経済産業局、 公益財団法人レーザー技術総合研究所共催,特別講演会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Agri-photonics and Agri-robotics for Food Production toward Global Population 9 Billion time2018

    • Author(s)
      Naoshi Kondo
    • Organizer
      Optics & Photonics International Congress 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 世界の食料生産を担うセンシング技術」オーガナイズドセッション:食料生産のためのスマート技術2018

    • Author(s)
      近藤直
    • Organizer
      システム制御情報学会SCI18
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Robotics Technologies Supporting Smart Agriculture2018

    • Author(s)
      Naoshi Kondo
    • Organizer
      6th IFAC Conference on Bio-Robotics
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Greenhouse Based Orientation Measurement System using Spread Spectrum Sound2018

    • Author(s)
      Huang Zichen
    • Organizer
      6th IFAC Conference on Bio-Robotics (BIOROBOTICS 2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited

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Published: 2018-07-20   Modified: 2024-03-26  

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