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Affiliation |
Faculty of Agriculture Department of Agricultural and Environmental Sciences |
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Associate Professor |
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External Link |
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GEJIMA Yoshinori
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Degree 【 display / non-display 】
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Doctor (Agriculture) ( 1993.3 Kagoshima University )
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Master of Agriculture ( 1988.3 University of Miyazaki )
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Bachelor of Agriculture ( 1986.3 University of Miyazaki )
Research Areas 【 display / non-display 】
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Environmental Science/Agriculture Science / Agricultural environmental engineering and agricultural information engineering
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Environmental Science/Agriculture Science / Agricultural environmental engineering and agricultural information engineering
Papers 【 display / non-display 】
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KIRIMURA Masaaki, TAKESHITA Shinichi, MATSUO Mitsuhiro, ZUSHI Kazufumi, GEJIMA Yoshinori, HONSHO Chitose, NAGAOKA Akira, NISHIOKA Kensuke
Environment Control in Biology 60 ( 2 ) 117 - 127 2022.4
Language：English Publishing type：Research paper (scientific journal) Publisher：Japanese Society of Agricultural, Biological and Environmental Engineers and Scientists
In a sustainable society, it is necessary to develop systems that produce enough food and energy while also preserving the environment. Both agricultural production for food generation and photovoltaics for renewable energy production require large, open fields. In this research study, we investigate the feasibility of combining food and energy production into a single field by examining the effects of installing photovoltaic equipment above land used for farming. We grew komatsuna, kabu, mizuna, and spinach underneath photovoltaic equipment, and investigated the influence of shading from the photovoltaic equipment on plant growth and yields during winter cultivation. As expected, both the amount of solar radiation and the air and soil temperature were lower under the photovoltaics than those under the open field. The growth rate of komatsuna, kabu, and mizuna were slower. However, yields and qualities sufficient to meet market demands remained possible with extension of the cultivation periods. Therefore, although temperature and solar radiation are reduced under the photovoltaic equipment in winter, it is nevertheless possible to produce vegetables in the farmland, providing a novel opportunity to realize an integrated agricultural system with parallel production of food and energy.
DOI： 10.2525/ecb.60.117
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Design and simulation of an integrated end-effector for picking kiwifruit by robot Reviewed
Mu L., Cui G., Liu Y., Cui Y., Fu L., Gejima Y.
Information Processing in Agriculture 7 ( 1 ) 58 - 71 2020.3
Language：English Publishing type：Research paper (scientific journal) Publisher：Information Processing in Agriculture
© 2019 China Agricultural University The harvesting of fresh kiwifruit is a labor-intensive operation that accounts for more than 25% of annual production costs. Mechanized harvesting technologies are thus being developed to reduce labor requirements for harvesting kiwifruit. To improve the efficiency of a harvesting robot for picking kiwifruit, we designed an end-effector, which we report herein along with the results of tests to verify its operation. By using the established method of automated picking discussed in the literature and which is based on the characteristics of kiwifruit, we propose an automated method to pick kiwifruit that consists of separating the fruit from its stem on the tree. This method is experimentally verified by using it to pick clustered kiwifruit in a scaffolding canopy cultivation. In the experiment, the end-effector approaches a fruit from below and then envelops and grabs it with two bionic fingers. The fingers are then bent to separate the fruit from its stem. The grabbing, picking, and unloading processes are integrated, with automated picking and unloading performed using a connecting rod linkage following a trajectory model. The trajectory was analyzed and validated by using a simulation implemented in the software Automatic Dynamic Analysis of Mechanical Systems (ADAMS). In addition, a prototype of an end-effector was constructed, and its bionic fingers were equipped with fiber sensors to detect the best position for grabbing the kiwifruit and pressure sensors to ensure that the damage threshold was respected while picking. Tolerances for size and shape were incorporated by following a trajectory groove from grabbing and picking to unloading. The end-effector separates clustered kiwifruit and automatically grabs individual fruits. It takes on average 4–5 s to pick a single fruit, with a successful picking rate of 94.2% in an orchard test featuring 240 samples. This study shows the grabbing–picking–unloading robotic end-effector has significant potential to facilitate the harvesting of kiwifruit.
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A Threading Method for Removal of the Secondary Roots of Sweet Ptatoes Reviewed
Journal of the Japanese Society of Agricultural Machinery and Food Engineers 81 ( 3 ) 177 - 182 2019.5
Language：Japanese Publishing type：Research paper (scientific journal)
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Mechanized technologies for scaffolding cultivation in the kiwifruit industry: A review Reviewed
Mu L., Liu H., Cui Y., Fu L., Gejima Y.
Information Processing in Agriculture 5 ( 4 ) 401 - 410 2018.12
Language：English Publishing type：Research paper (scientific journal) Publisher：Information Processing in Agriculture
© 2018 The success of organic and green agricultural fruit production depends on quality and cost. As the kiwifruit industry becomes ever more commercialized, it is in the interests of the industry to mechanize production, which can promote industrialization and improve industrial value and market prospects. Currently, New Zealand, Italy, Chile, and China carry out research into the mechanism of kiwifruit production. This review describes in detail the current state of the art of pollination, harvesting and grading equipment, including detection and identification, non-destructive end effector, harvesting robots and grading devices. Process technologies that include artificial pollination, harvest mechanization, grading and standardization of production problems are analysed and compared. These problems directly affect the quality of kiwifruit products. Finally, to solve the various problems that the kiwifruit industry experiences, it is necessary to accelerate the development of mechanized kiwifruit production, realize the mechanization of information acquisition and standardization in order to advance precision agriculture and agricultural wisdom for the future. Mechanization of the kiwifruit industry must adapt to adjustments in how China's economic structure develops.
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Design of end-effector for kiwifruit harvesting robot experiment
Mu Longtao ; Liu Yadong; Cui Yongjie; Liu Haibin; Chen Lipeng; Fu Longsheng; Gejima, Yoshinori
2017 ASABE Annual International Meeting 2017.7
Language：English Publishing type：Research paper (scientific journal) Publisher：2017 ASABE Annual International Meeting
To separate kiwifruits and realize nondestructive picking and unloading of clustered kiwifruits in scaffolding cultivation, an end-effector with a "grabbing-picking-sliding" harvesting method and automatic picking and unloading connecting rod linkage following its trajectory model is presented based on the research on manual picking methods, the fruits growth and their physical properties. Kiwifruit position are detected by optic fiber sensors, clamping force detected by pressure sensors, shape and size of bionic picking fingers set thereby and an integration harvesting prototype following trajectory model from grabbing, picking to unloading designed and evaluated in the lab and orchard. The evaluation test showed that the end-effector of the prototype with optic fiber sensors on the fingers to detect the best position for grabbing, the pressure sensors to guarantee a nondestructive picking within damage threshold and adjusting spring for fruits size and shape tolerance, can integratedly grab and separate adjacent or clustered kiwifruits, then pick and unload individual fruit without destruction.
MISC 【 display / non-display 】
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L*a*b*表色系を用いたトマトの熟度判別に関する研究（共著，英文）
槐島 芳徳
Proceedings of the 2003 IEEE/ASME International Conference on Advanced Intelligent Mechatronics 1355-1359 2003
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (bulletin of university, research institution)
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Journal of Society of High Technology in Agriculture 14巻1号，1-9 ( 1 ) 1 - 9 2002
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (bulletin of university, research institution)
DOI： 10.2525/jshita.14.1
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可視光と近赤外光の画像を用いたイチゴの品質評価に関する研究（共著，英文）
槐島 芳徳
Proceedings of 3rd IFAC/CIGR Workshop on Control Applications in Post-Harvest and Processing Technology 232-237 232-237 2001
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (bulletin of university, research institution)
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Study on quality estimation for strawberry using color and NIR image processing
GEJIMA Yoshinori
Proceedings of 3rd IFAC/CIGR Workshop on Control Applications in Post-Harvest and Processing Technology 232-237 2001
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (bulletin of university, research institution)
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農用トラクタエンジンの排出ガス濃度・排出量分布図の作成（共著）
槐島 芳徳
農業機械学会九州支部誌 50，1-5 2001
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (bulletin of university, research institution)
Presentations 【 display / non-display 】
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植物計測情報によるセル苗CA貯蔵環境制御の可能性 ―深度情報によるトマトセル苗の草丈計測技術の構築－
槐島芳徳・日吉健二・松本朋子・境健太郎・小林太一・ 西本素三、辻本祐加子
日本生物環境工学会2023年豊橋大会 2023.9.13
Event date： 2023.9.12 - 2023.9.15
Language：Japanese Presentation type：Oral presentation (general)
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紫外線励起蛍光カラー画像による農産物の品質評価 〜宮崎県産露地へべすの貯蔵過程における状態変化〜
境健太郎, ⽇吉健⼆, 槐島芳徳, 松本朋⼦, ⼩林太⼀, 辻本祐加⼦, ⻄本素三
日本生物環境工学会2023年豊橋大会 2023.9.13
Event date： 2023.9.12 - 2023.9.15
Language：Japanese Presentation type：Oral presentation (general)
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紫外線励起蛍光分光画像による農産物の品質評価 -へべすの貯蔵過程における状態変化ー
○⼩林太⼀, ⽇吉健⼆, 槐島芳徳, 松本朋⼦, 境健太郎, ⻄本素三, 辻本祐加⼦
日本生物環境工学会2023年豊橋大会 2023.9.13
Event date： 2023.9.12 - 2023.9.15
Language：Japanese Presentation type：Oral presentation (general)
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ヘベスの鮮度評価技術に関する研究ー機械学習を用いたカラー画像によるクロロフィルa含有量の 推定ー
西本素三, 辻本祐加子，日吉健二, 小林太一, 槐島芳徳, 松本朋子，境健太郎
第80回農業食料工学会年次大会 2022.9.14
Event date： 2022.9.12 - 2022.9.14
Language：Japanese Presentation type：Oral presentation (general)
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センシング情報に基づくヘベスの鮮度保持制御について－紫外光励起蛍光分光画像による状態変化の観察－
小林 太一，日吉 健二，槐島 芳徳，松本 朋子，境 健太郎
日本生物環境工学会2022年福岡大会 2022.9.7
Event date： 2022.9.6 - 2022.9.9
Language：Japanese Presentation type：Poster presentation
Awards 【 display / non-display 】
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農業食料工学会九州支部賞
2017.9 農業食料工学会九州支部 茶の高品質生産システムの開発に関する研究
槐島芳徳
Award type：Award from Japanese society, conference, symposium, etc. Country：Japan
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日本生物環境工学会貢献賞
2016.9 日本生物環境工学会 生物環境工学に関する学術交流活動および九州支部運営における貢献
槐島芳徳
Award type：Award from Japanese society, conference, symposium, etc. Country：Japan
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Information and Electrical Technologies Dibision Meeting Paper Award
2004.7 American Society of Agricultural Engineers
Masateru Nagata, Jasper Tallada, Taichi Kobayashi, Yongjie Cui, Yoshinori Gejima
Award type：Award from international society, conference, symposium, etc. Country：United States
Grant-in-Aid for Scientific Research 【 display / non-display 】
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搾乳ロボットのパフォーマンス向上に関する実証的・学際的研究
Grant number：22K05870 2022.04 - 2025.03
独立行政法人日本学術振興会 科学研究費補助金 基盤研究(C)
Authorship：Coinvestigator(s)
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高品質茶収穫システムの開発に関する研究
2016.04 - 2019.03
科学研究費補助金 基盤研究(C)
Authorship：Principal investigator
本研究は，茶葉の機械収穫機構と摘採適期判断システムを開発して高品質な茶葉収穫技術を確立するものである．
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高性能ベルトコンベア型炒り葉機の開発に関する研究
2006.04 - 2009.03
科学研究費補助金 基盤研究(C)
Authorship：Principal investigator
九州の特産品である釜炒り茶の生産性を向上するため，高性能ベルトコンベア型炒り葉機を開発する．本機は，円筒釜や固定釜を使った炒り葉方式に替わり，ベルトコンベア（送帯式）による新たな炒り葉方式を構築するものである．さらに，本機によって加工される茶葉の状態を画像処理システムを用いて把握し，高品質な釜炒り茶の製造条件を見出す炒り葉評価システムを付加する．これにより，釜炒り茶の生産体系を近代化して，中山間地を中心に展開する釜炒り茶の生産性を向上し，茶農家の収益増を目指す．
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釜炒り茶における炒り葉機の開発に関する基礎的研究
1998.04 - 2000.03
科学研究費補助金 若手研究(A)
Authorship：Principal investigator
釜炒り茶の品質を最も左右する新たな炒り葉機の開発を行った。茶葉を効率的に乾燥させるために，茶葉の中心部から水分を移動させる揉みの作用と上下から挟み込む伝熱方法とを組み合わせた回分式および連続式の炒り葉機を試作した。各機を使用した性能実験の結果，回分式では良質な茶葉を炒ることができるな蒸気排気口面積を見出すことができた。しかし連続式炒り葉機では，上方から茶葉を供給する際に投入量が安定しなかったことが原因で炒りの過不足が生じ，品質の低下を招いた。
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高温・高圧スチームを用いた除草機の開発に関する基礎研究
1995.04 - 1996.03
科学研究費補助金 若手研究(A)
Authorship：Principal investigator
雑草の根に高温高圧の蒸気を噴射して枯死させる除草機の開発に関する基礎研究を行った。このため，除草用灯油バーナーを火力源とした容量20リットルの蒸気発生タンクおよび蒸気を土中に導くノズルを製作し，圃場の中を移動できる台車に搭載した除草機を製作した。実験の結果，高圧蒸気による土壌の飛散が顕著であること，さらに土中での蒸気温度が70℃程度しか達せず，当初の目的に達しないことがわかった。
Available Technology 【 display / non-display 】
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農産物の高品質収穫機械の開発に関する研究
宮崎県特産品の高品質化に貢献する機械とソフトの開発に関する研究
植物の生育をセンシングする技術の開発に関する研究Home Page： 生産システム工学研究分野／槐島研究室
Related fields where technical consultation is available：・農業機械の開発・改良
・農業に関するソフトウェアおよびセンシング技術の開発Message： 農業機械の開発・改良，農業生産に必要なソフトウェアおよび植物の計測技術の開発のお手伝いをします。