Identification, Modelling and Optimal Control in the System for the Environmental Control of Plant Growth

厳密にい うな らば,植 物環境制御 の歴史は約半世紀に す ぎない(橋 本,1987).そ の起源は,植 物科学か らみ る と,米 国のカル フォル ニア工科大学 で産声をあげた ファ イ トトロンであ り,実 用的にはオ ランダを主た る拠点 と して発達 して きた グリー ンハ ウス栽培 であろ う.や や特 殊な芽菜類の工場的生産 シス テム として デンマー クで誕 生 した野菜工場 も環境制御を前提 に してお り,今 日の植 物工場のオ リジンとして見過ごす こ とは できないであろ う. 環境 制御は 当然 システム制御 の一分野 である.制 御 の 歴史 も学術 としてオー プンにな ってか らは 同程度 と考 え ることが できる.ま ず,ラ プラス変換に基づ く伝達関数 を扱 う古典的制御理論,遅 れて登場 した現代制御理論, そ して現在はAIを 活用 した知能 的制御(Krijgsmanら, 1992;Albertosら,1992)へ と,大 き く変わ って きてい

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