JP3650789B2 - Plant cultivation apparatus and cultivation method - Google Patents

Plant cultivation apparatus and cultivation method Download PDF

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Publication number
JP3650789B2
JP3650789B2 JP2000354300A JP2000354300A JP3650789B2 JP 3650789 B2 JP3650789 B2 JP 3650789B2 JP 2000354300 A JP2000354300 A JP 2000354300A JP 2000354300 A JP2000354300 A JP 2000354300A JP 3650789 B2 JP3650789 B2 JP 3650789B2
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closed space
growth container
growth
support
plant cultivation
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JP2002153126A (en
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一郎 田山
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Chiyoda Corp
Japan Aerospace Exploration Agency JAXA
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Chiyoda Corp
Japan Aerospace Exploration Agency JAXA
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor

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Description

【０００１】
【発明の属する技術分野】
本発明は、特に人工環境において、閉空間を形成する育成容器内に設けられた保水性を有する支持体によって植物を栽培する際に用いて好適な植物栽培装置および栽培方法に関するものである。
【０００２】
【従来技術】
従来、実験室等において栽培される研究用植物は、恒温恒湿槽などの内部に配置された透明プラスチック製の蓋付き容器を用い、その容器の内部にて栽培されていた。この場合、閉じられた容器内のガスは自然対流により循環され、植物への給水は容器の蓋を外してから人手により実施されるとともに、植物の育成状況の観察は、恒温恒湿槽などの扉を開けてから作業者によって直接的に実施され、また植物育成用の光は蛍光燈から供給されている。このように、植物への給水や観察等の作業は、全て作業者の手作業によって実施されていた。
【０００３】
【発明が解決しようとする課題】
しかしながら、このように作業者の手作業による植物の栽培は、特に、長期育成試験の場合に、多大の手間を要するとともに、作業がきわめて煩雑になるという問題点があった。また、特に宇宙船内等の狭い作業空間を強いられる人工環境において植物の育成試験を行なう場合には、恒温高湿槽が大型となるために、不適当であるという問題点があった。
【０００４】
さらに、閉じられた容器内のガスの循環が自然対流にまかされているだけであるため、発生ガスが容器内に蓄積する懸念があった。また、給水のために容器の蓋を外したときに、空気中の藻胞子などの侵入による汚染の危険性があった。加えて、植物育成用の光を発生する蛍光燈の熱線によって、容器内の温度が上昇する危険性もあった。この現象は、特に無重力で自然対流のない宇宙環境において顕著である。
【０００５】
本発明は、上記従来の植物栽培装置が有する課題を有効に解決すべくなされたもので、人工環境下の閉空間内において、作業者に負担をかけることなく、均一な雰囲気下において植物を育成することができる植物栽培装置および栽培方法を提供することを目的とするものである。
【０００６】
【課題を解決するための手段】
請求項１に記載の本発明に係る植物栽培装置は、閉空間を形成する育成容器内に設けられた保水性を有する支持体を用いて、植物を栽培する植物栽培装置であって、上記育成容器の閉空間内の湿度を検出する湿度検出手段と、上記育成容器の外部に配置され上記閉空間内における上記支持体の含水率を検出する含水率検出手段と、上記育成容器の外部に配置され上記閉空間内の換気が可能な換気手段と、上記育成容器の外部に配置され上記閉空間内における上記支持体に水分を供給可能な給水手段と、上記育成容器の外部に配置され上記湿度検出手段および上記含水率検出手段の検出結果に基づいて、上記換気手段および上記給水手段を制御する制御手段とを備えてなることを特徴とするものである。
【０００７】
ここで、請求項２に記載の発明は、請求項１に記載の発明が、さらに上記育成容器の閉空間の外部から内部に向かって、植物育成用の光を照射する発光ダイオードを備えていることを特徴とするものである。請求項３に記載の発明は、請求項１または２に記載の育成容器の外部に配置され閉空間内を撮影可能な監視カメラを備えたことを特徴とするものである。
【０００８】
また、請求項４に記載の発明は、請求項１〜３のいずれかに記載の含水率検出手段は、上記支持体に向けて赤外線を照射し、当該支持体から上記育成容器の外部に反射される赤外線の反射強度に基づいて上記支持体の含水率を検出する赤外線式水分計であることを特徴とするものである。
【０００９】
次いで、請求項５に記載の本発明に係る植物栽培方法は、閉空間を形成する育成容器内に設けられた保水性を有する支持体を用いて植物を栽培する植物栽培方法であって、上記育成容器の閉空間内の湿度を検出すると共に、上記育成容器の閉空間内における上記支持体の含水率を上記育成容器の外部から検出し、それらの検出結果に基づいて、上記育成容器の外部に配置された換気手段による上記閉空間内の換気動作、および上記育成容器の外部に配置された給水手段による上記閉空間内における上記支持体への水分の供給動作を上記育成容器の外部に配置された制御手段によって制御することを特徴とするものである。
【００１０】
【発明の実施の形態】
以下、本発明の実施形態を図面に基づいて説明する。
図１は、本発明の植物栽培装置の一実施形態を示す概略構成図であり、図中符号Ａは、植物栽培実験部である。この植物栽培実験部Ａ内には、閉空間を形成する透光性の育成容器１が備えられており、この育成容器１内に収容された保水性を有する支持体２を用いて、植物Ｐが育成される。
【００１１】
この支持体２としては、土壌の他、ロックウールやオアシス（商品名：日本曹達株式会社製）などの繊維状体を用いることができる。また、符号３は、閉空間を形成したままの育成容器１内の温度と湿度を検出する温湿度センサであり、この温湿度センサ３によって検出された温度および湿度の検出信号は、制御用コンピュータ（制御手段）Ｂに接続された回路基板４に入力される。この温湿度センサ３において、育成容器１内の湿度を検出する機能部分は、湿度検出手段を構成する。さらに符号５は、育成容器１の内部と外部との間の換気路中に備えられた換気ポンプであり、閉空間を形成したままの育成容器１内を換気可能な換気手段を構成している。
【００１２】
この換気ポンプ５は、育成容器１の外部に配置されており、回路基板４から出力される制御信号に基づいて制御される。また、符号６は、育成容器１内の支持体２と水槽７との間の給水路中に備えられた給水ポンプであり、閉空間を形成したままの育成容器１内の支持体２に対して給水が可能な給水手段を構成している。この給水ポンプ６は、育成容器１の外部に配置されており、回路基板４から出力される制御信号に基づいて制御される。水槽７内には、水の他、栄養液が入っていてもよい。
【００１３】
そして、育成容器１の側部には、含水率検出手段としての赤外線式水分計８が育成容器１の外部に配設され、閉空間を形成したままの育成容器１内の支持体２に向けて赤外線を照射し、支持体２から反射された赤外線を育成容器１の外部にて検出して、その検出結果に基づいて支持体２の含水率を検出する。上記支持体２は、その含水量の増大に伴なって赤外線の吸収量が増大するため、赤外線式水分計８は、支持体２における赤外線の反射強度から、支持体２の含水量を検出する。例えば、赤外線式水分計８に、支持体２における赤外線の反射強度に応じた電圧を出力する受光素子を用いることにより、その出力電圧を支持体２の含水率の検出信号とすることができる。そして、含水率の検出信号は回路基板４に入力される。
【００１４】
さらに、育成容器１の上方には、育成容器１の外部に隔離された育成用ＬＥＤ照明ユニット９が設けられており、この育成用ＬＥＤ照明ユニット９には、熱線を発生することなく植物育成用の光を発する育成用発光ダイオード（ＬＥＤ）が備えられている。この育成用ＬＥＤ照明ユニット９から発せられる育成用の光は、閉空間を形成したままの育成容器１を透過して、その内部に供給されるようになっている。ここで、育成用発光ダイオードは、回路基板４から出力される制御信号に基づいて制御される。
【００１５】
また、育成容器１の外部には、隔離された位置に観察用白色ＬＥＤユニット１０が配設されており、この観察用白色ＬＥＤユニット１０には、熱線を発生することなく観察用の照明光を発する観察用発光ダイオード（ＬＥＤ）が備えられている。その観察用の照明光は、閉空間を形成したままの育成容器１を透過して、その内部に照射される。また、観察用発光ダイオードは、回路基板４から出力される制御信号に基づいて制御される。なお、符号１１は、閉空間を形成したままの育成容器１の内部を撮影可能なＣＣＤカメラ（監視カメラ）であり、その動作は、回路基板４から出力される制御信号に基づいて制御され、得られた映像信号は観察用テレビモニタＣに入力される。ＣＣＤカメラ１１は、育成容器１の外部に配置されている。
【００１６】
次に、以上の構成からなる植物栽培装置を用いた本発明の植物栽培方法の一実施形態について説明する。
先ず、コンピュータＢは、テレビモニタＣによる育成容器１内の観察時に、観察用白色ＬＥＤユニット１０を制御して観察用の照明光を育成容器１内に照射させるとともに、温湿度センサ３および水分計８の検出信号に基づいて、育成容器１を閉じたまま、換気ポンプ５、給水ポンプ６、および育成用ＬＥＤ照明ユニット９を関連的に制御する。
【００１７】
すなわち、温湿度センサ３によって検出された育成容器１内の湿度に基づいて、換気ポンプ５を運転制御する。この結果、育成容器１内の湿度を一定に保つように換気することができる。その換気の際には、育成容器１内のガスが強制的に交換されるため、育成容器１内における発生ガスの蓄積が防止される。また、このような換気によって育成容器１内の湿度を制御する時には、フィルター等を用いて、育成容器１の外部から内部への藻胞子等の吸い込みを防止する。
【００１８】
さらに、水分計８によって検出された支持体２の含水率に基づいて、給水ポンプ６を運転制御する。この結果、支持体２の含水率を一定に保つように給水することができる。また、育成容器１を開放することなく給水できるため、給水時に育成容器１を開放した場合の問題、つまり育成容器１の内部が外気との接触により汚染されて、藻胞子等が侵入するという問題を回避することができる。
【００１９】
また、育成用ＬＥＤ照明ユニット９は、育成容器１から隔離された位置において、熱線を発生することなく育成用の光を発するため、育成容器１内の温度を上昇させることなく育成用の光を供給することになる。同様に、観察用白色ＬＥＤユニット１０は、育成容器１から隔離された位置において、熱線を発生することなく観察用の照明光を発するため、育成容器１内の温度を上昇させることなく観察用の照明光を供給する。
【００２０】
このように、育成容器１を開放することなく、それを閉じたまま、植物Ｐの育成環境を自動制御することができる。また、その植物Ｐの映像をテレビモニタＣに表示することにより、植物Ｐの育成環境を乱すことなく、その植物Ｐを観察することができる。また、コンピュータＢには、このように植物Ｐの育成環境を制御するための最適なパラメータとして、植物栽培実験部Ａの運転パラメータが入力される。また、コンピュータＢは、育成容器１内の環境の検出データ、および育成容器１の運転データなどを記録してもよい。
【００２１】
【発明の効果】
以上説明したように、請求項１〜４のいずれかに記載の本発明に係る植物栽培装置および請求項５に記載の栽培方法によれば、閉空間を形成する生育容器内に設けられた保水性を有する支持体を用いて植物を栽培する際に、育成容器内の湿度と支持体の含水率の検出結果に基づいて、育成容器内の換気動作および支持体への水分の供給動作をすることにより、作業者に負担を掛けることなく、育成容器内の湿度および支持体の含水率を一定に保つように育成環境を自動制御することができる。また、育成容器を閉じたまま育成環境を自動制御することにより、育成容器の内部が外気に触れることによる汚染を防止することができ、しかも育成容器内の換気動作により、育成容器内における発生ガスの蓄積を防止することができる。
【００２２】
また、植物育成用の光を供給するために発光ダイオードを用いることにより、育成容器内の温度を上昇させることなく育成用の光を供給して、育成環境をより安定化させることができるとともに、育成容器の閉空間内を撮影可能な監視カメラを備えることにより、育成容器を閉じたまま、その内部を観察することができる。さらに、支持体の含水率を検出するために、支持体から育成用の外部に反射される赤外線の反射強度を検出する赤外線式水分計を用いることにより、育成容器を閉じたまま、支持体の含水率を検出することができる。
【図面の簡単な説明】
【図１】本発明の一実施形態を説明するための概略構成図である。
【符号の説明】
１ 育成容器
２ 支持体
３ 温湿度センサ
４ 回路基板
５ 換気ポンプ
６ 給水ポンプ
７ 水槽
８ 赤外線式水分計
９ 育成用ＬＥＤ照明ユニット
１０ 観察用白色ＬＥＤユニット
１１ ＣＣＤカメラ（監視カメラ）
Ａ 植物栽培実験部
Ｂ 制御用コンピュータ（制御手段）
Ｃ 観察用テレビモニタ
Ｐ 植物[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a plant cultivation apparatus and a cultivation method suitable for use in cultivating a plant with a support having water retention provided in a growth container that forms a closed space, particularly in an artificial environment.
[0002]
[Prior art]
Conventionally, a research plant cultivated in a laboratory or the like has been cultivated inside a container using a transparent plastic lidded container placed inside a thermostatic chamber. In this case, the gas in the closed container is circulated by natural convection, and water supply to the plant is carried out manually after removing the lid of the container, and the observation of the growth of the plant is performed in a constant temperature and humidity chamber. It is carried out directly by the operator after opening the door, and the light for plant cultivation is supplied from the fluorescent lamp. As described above, all the operations such as water supply and observation to the plants were performed manually by the workers.
[0003]
[Problems to be solved by the invention]
However, the cultivation of plants by the manual labor of the operator as described above has a problem that it takes a lot of labor and is extremely complicated especially in the case of a long-term growth test. In addition, when performing plant growth tests in an artificial environment in which a narrow working space such as in a spacecraft is required, there is a problem that the thermostatic and high-humidity tank is large, which is inappropriate.
[0004]
Furthermore, since the circulation of the gas in the closed container is only left to natural convection, there is a concern that the generated gas accumulates in the container. In addition, when the lid of the container was removed for water supply, there was a risk of contamination due to intrusion of algal spores in the air. In addition, there is a risk that the temperature in the container rises due to the heat rays of the fluorescent lamp that generates light for plant growth. This phenomenon is particularly remarkable in a space environment without gravity and without natural convection.
[0005]
The present invention was made to effectively solve the problems of the above-described conventional plant cultivation apparatus, and in a closed space under an artificial environment, plants are grown in a uniform atmosphere without placing a burden on the operator. An object of the present invention is to provide a plant cultivation apparatus and a cultivation method that can be used.
[0006]
[Means for Solving the Problems]
A plant cultivation apparatus according to the present invention described in claim 1 is a plant cultivation apparatus for cultivating a plant using a support having water retention provided in a growth container that forms a closed space, wherein and humidity detecting means for detecting the humidity in the closed space of the container, the moisture content detecting means for detecting the water content of the support in the inter-disposed above closed space to the outside of the growth vessel, located outside of the growth vessel and ventilation is capable ventilation means in between the closed space is, a water supply unit capable of supplying water to the support in the between the closed space is located outside the growth vessel, the humidity is disposed outside of the growth vessel Based on the detection results of the detection means and the moisture content detection means, the ventilation means and the control means for controlling the water supply means are provided.
[0007]
Here, the invention according to claim 2 is provided with a light-emitting diode that irradiates light for plant growth from the outside to the inside of the closed space of the growth container. It is characterized by this . According to a third aspect of the present invention, there is provided a surveillance camera that is arranged outside the growth container according to the first or second aspect and can photograph the inside of the closed space.
[0008]
In the invention according to claim 4, the moisture content detecting means according to any one of claims 1 to 3 irradiates infrared rays toward the support, and is reflected from the support to the outside of the growth vessel. It is an infrared moisture meter that detects the moisture content of the support based on the reflected intensity of infrared rays.
[0009]
Next, the plant cultivation method according to the present invention described in claim 5 is a plant cultivation method for cultivating a plant using a support having water retention provided in a growth container forming a closed space, While detecting the humidity in the closed space of the growth vessel, the moisture content of the support in the closed space of the growth vessel is detected from the outside of the growth vessel, and based on the detection results, the outside of the growth vessel The ventilation operation in the closed space by the ventilation means arranged on the outside and the water supply operation to the support in the closed space by the water supply means arranged outside the growth container are arranged outside the growth container It is characterized by being controlled by the controlled means .
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1: is a schematic block diagram which shows one Embodiment of the plant cultivation apparatus of this invention, and the code | symbol A in a figure is a plant cultivation experiment part. In this plant cultivation experiment part A, a translucent growth container 1 that forms a closed space is provided, and a plant P is used by using a support 2 having water retention accommodated in the growth container 1. Is nurtured.
[0011]
As the support 2, a fibrous body such as rock wool or oasis (trade name: manufactured by Nippon Soda Co., Ltd.) can be used in addition to soil. Reference numeral 3 denotes a temperature / humidity sensor that detects the temperature and humidity in the growth vessel 1 while forming a closed space. The temperature and humidity detection signals detected by the temperature / humidity sensor 3 are used for a control computer. (Control means) Input to circuit board 4 connected to B. In this temperature / humidity sensor 3, the functional part for detecting the humidity in the growth vessel 1 constitutes a humidity detecting means. Further, reference numeral 5 denotes a ventilation pump provided in a ventilation path between the inside and the outside of the growth container 1, and constitutes a ventilation means capable of ventilating the inside of the growth container 1 while forming a closed space. .
[0012]
The ventilation pump 5 is disposed outside the growth vessel 1 and is controlled based on a control signal output from the circuit board 4. Moreover, the code | symbol 6 is the water supply pump with which the water supply path between the support body 2 in the growth container 1 and the water tank 7 was equipped, and with respect to the support body 2 in the growth container 1 with which closed space was formed. Water supply means that can supply water. The water supply pump 6 is disposed outside the growth vessel 1 and is controlled based on a control signal output from the circuit board 4. The water tank 7 may contain a nutrient solution in addition to water.
[0013]
An infrared moisture meter 8 as a moisture content detecting means is disposed outside the growth container 1 on the side of the growth container 1 and directed toward the support 2 in the growth container 1 while forming a closed space. The infrared rays reflected from the support 2 are detected outside the growth vessel 1, and the moisture content of the support 2 is detected based on the detection result. The infrared absorption amount of the support 2 increases as the moisture content thereof increases. Therefore, the infrared moisture meter 8 detects the moisture content of the support 2 from the infrared reflection intensity of the support 2. . For example, by using a light receiving element that outputs a voltage corresponding to the reflection intensity of infrared rays on the support 2 for the infrared moisture meter 8, the output voltage can be used as a detection signal for the moisture content of the support 2. The moisture content detection signal is input to the circuit board 4.
[0014]
Further, a growth LED illumination unit 9 isolated outside the growth container 1 is provided above the growth container 1, and the growth LED illumination unit 9 is used for plant growth without generating heat rays. A growing light emitting diode (LED) is provided. The growing light emitted from the growing LED lighting unit 9 passes through the growing container 1 with the closed space formed and is supplied to the inside thereof. Here, the growing light emitting diode is controlled based on a control signal output from the circuit board 4.
[0015]
In addition, an observation white LED unit 10 is disposed outside the growth container 1 at an isolated position. The observation white LED unit 10 is irradiated with observation illumination light without generating heat rays. An observation light emitting diode (LED) is provided. The illumination light for observation passes through the growth container 1 with the closed space formed, and is irradiated to the inside thereof. The observation light emitting diode is controlled based on a control signal output from the circuit board 4. Reference numeral 11 denotes a CCD camera (monitoring camera) capable of photographing the inside of the growth vessel 1 with the closed space formed, and its operation is controlled based on a control signal output from the circuit board 4, The obtained video signal is input to the observation television monitor C. The CCD camera 11 is disposed outside the growth container 1.
[0016]
Next, one Embodiment of the plant cultivation method of this invention using the plant cultivation apparatus which consists of the above structure is described.
First, the computer B controls the observation white LED unit 10 to irradiate the observation illumination light into the growth container 1 and observes the temperature / humidity sensor 3 and the moisture meter during observation in the growth container 1 by the TV monitor C. Based on the detection signal 8, the ventilation pump 5, the water supply pump 6, and the growth LED lighting unit 9 are relatedly controlled while the growth container 1 is closed.
[0017]
That is, based on the humidity in the growth container 1 detected by the temperature / humidity sensor 3, the ventilation pump 5 is operated and controlled. As a result, it can ventilate so that the humidity in the growth container 1 can be kept constant. During the ventilation, the gas in the growth container 1 is forcibly replaced, so that the generated gas is prevented from accumulating in the growth container 1. Moreover, when controlling the humidity in the growth container 1 by such ventilation, a filter or the like is used to prevent inhalation of algal spores or the like from the outside to the inside of the growth container 1.
[0018]
Further, the operation of the water supply pump 6 is controlled based on the moisture content of the support 2 detected by the moisture meter 8. As a result, water can be supplied so that the moisture content of the support 2 is kept constant. Further, since water can be supplied without opening the growth container 1, there is a problem when the growth container 1 is opened at the time of water supply, that is, the inside of the growth container 1 is contaminated by contact with the outside air and alga spores and the like enter. Can be avoided.
[0019]
Moreover, since the LED lighting unit for growth 9 emits light for growth without generating heat rays at a position isolated from the growth container 1, the light for growth is not increased without raising the temperature in the growth container 1. Will be supplied. Similarly, the observation white LED unit 10 emits illumination light for observation without generating heat rays at a position isolated from the growth container 1, so that the observation white LED unit 10 does not increase the temperature in the growth container 1. Supply illumination light.
[0020]
In this way, the growing environment of the plant P can be automatically controlled without opening the growing container 1 and keeping it closed. Further, by displaying an image of the plant P on the television monitor C, the plant P can be observed without disturbing the growing environment of the plant P. Moreover, the operating parameter of the plant cultivation experiment part A is input to the computer B as the optimum parameter for controlling the growing environment of the plant P in this way. Moreover, the computer B may record the detection data of the environment in the growth container 1, the operation data of the growth container 1, and the like.
[0021]
【The invention's effect】
As described above, according to the plant cultivation device according to any one of claims 1 to 4 and the cultivation method according to claim 5, water retention provided in a growth container that forms a closed space. When a plant is cultivated using a support having the property, the ventilation operation in the growth container and the water supply operation to the support are performed based on the detection result of the humidity in the growth container and the moisture content of the support. Thus, the growth environment can be automatically controlled so as to keep the humidity in the growth container and the moisture content of the support constant without imposing a burden on the operator. In addition, by automatically controlling the growth environment with the growth container closed, the inside of the growth container can be prevented from being contaminated by the outside air, and the generated gas in the growth container can be prevented by the ventilation operation in the growth container. Can be prevented.
[0022]
In addition, by using a light emitting diode to supply light for plant growth, it is possible to supply light for growth without increasing the temperature in the growth container, and to stabilize the growth environment, By providing a monitoring camera capable of photographing the inside of the closed space of the growth container, the inside of the growth container can be observed while being closed. Furthermore, in order to detect the moisture content of the support, by using an infrared moisture meter that detects the reflection intensity of infrared rays reflected from the support to the outside for growth, the growth container is kept closed. The moisture content can be detected.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram for explaining an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Growth container 2 Support body 3 Temperature / humidity sensor 4 Circuit board 5 Ventilation pump 6 Water supply pump 7 Water tank 8 Infrared moisture meter 9 LED lighting unit 10 for growth White LED unit 11 for observation CCD camera (monitoring camera)
A Plant cultivation experiment part B Control computer (control means)
C Observation TV monitor P Plant

Claims (5)

閉空間を形成する育成容器内に設けられた保水性を有する支持体を用いて、植物を栽培する植物栽培装置であって、
上記育成容器の閉空間内の湿度を検出する湿度検出手段と、
上記育成容器の外部に配置され上記閉空間内における上記支持体の含水率を検出する含水率検出手段と、
上記育成容器の外部に配置され上記閉空間内の換気が可能な換気手段と、
上記育成容器の外部に配置され上記閉空間内における上記支持体に水分を供給可能な給水手段と、
上記育成容器の外部に配置され上記湿度検出手段および上記含水率検出手段の検出結果に基づいて、上記換気手段および上記給水手段を制御する制御手段と、
を備えてなることを特徴とする植物栽培装置。A plant cultivation apparatus for cultivating a plant using a support having water retention provided in a growth container forming a closed space,
Humidity detecting means for detecting the humidity in the closed space of the growth container;
A moisture content detection means for detecting the moisture content of the support in the closed space disposed outside the growth vessel;
A ventilation means arranged outside the breeding vessel and capable of ventilating the closed space;
Water supply means arranged outside the growth vessel and capable of supplying moisture to the support in the closed space;
Control means for controlling the ventilation means and the water supply means, based on the detection results of the humidity detection means and the moisture content detection means arranged outside the growth container ;
The plant cultivation apparatus characterized by comprising. 上記育成容器の閉空間の外部から内部に向かって、植物育成用の光を照射する発光ダイオードを備えたことを特徴とする請求項１に記載の植物栽培装置。  The plant cultivation apparatus according to claim 1, further comprising a light emitting diode that irradiates light for plant cultivation from the outside to the inside of the closed space of the growth container. 上記育成容器の外部に配置され上記育成容器の閉空間内を撮影可能な監視カメラを備えたことを特徴とする請求項１または２に記載の植物栽培装置。The plant cultivation apparatus according to claim 1, further comprising a monitoring camera disposed outside the growth container and capable of photographing the inside of the closed space of the growth container. 上記含水率検出手段は、上記支持体に向けて赤外線を照射し、当該支持体から上記育成容器の外部に反射される赤外線の反射強度に基づいて上記支持体の含水率を検出する赤外線式水分計であることを特徴とする請求項１ないし３のいずれかに記載の植物栽培装置。  The moisture content detecting means irradiates infrared rays toward the support, and detects the moisture content of the support based on the infrared reflection intensity reflected from the support to the outside of the growth container. The plant cultivation device according to any one of claims 1 to 3, wherein the plant cultivation device is a total. 閉空間を形成する育成容器内に設けられた保水性を有する支持体を用いて、植物を栽培する植物栽培方法であって、
上記育成容器の閉空間内の湿度を検出すると共に、上記育成容器の閉空間内における上記支持体の含水率を上記育成容器の外部から検出し、それらの検出結果に基づいて、上記育成容器の外部に配置された換気手段による上記閉空間内の換気動作、および上記育成容器の外部に配置された給水手段による上記閉空間内における上記支持体への水分の供給動作を、上記育成容器の外部に配置された制御手段によって制御することを特徴とする植物栽培方法。A plant cultivation method for cultivating a plant using a support having water retention provided in a growth container forming a closed space,
While detecting the humidity in the closed space of the said growth container, the moisture content of the said support body in the closed space of the said growth container is detected from the outside of the said growth container , Based on those detection results, The ventilation operation in the closed space by the ventilation means arranged outside , and the water supply operation to the support in the closed space by the water supply means arranged outside the growth container are performed outside the growth container. The plant cultivation method characterized by controlling by the control means arrange | positioned in .
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