JP2757941B2 - Nourishment supply device - Google Patents
Nourishment supply deviceInfo
- Publication number
- JP2757941B2 JP2757941B2 JP63096633A JP9663388A JP2757941B2 JP 2757941 B2 JP2757941 B2 JP 2757941B2 JP 63096633 A JP63096633 A JP 63096633A JP 9663388 A JP9663388 A JP 9663388A JP 2757941 B2 JP2757941 B2 JP 2757941B2
- Authority
- JP
- Japan
- Prior art keywords
- nutrient
- solar radiation
- water
- time
- amount
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y02P60/216—
Landscapes
- Hydroponics (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、水耕栽培における養水の供給装置に関す
る。Description: TECHNICAL FIELD The present invention relates to a water supply device for hydroponic cultivation.
従来、特開昭62−262924号公報に示される技術があっ
た。この従来技術は、日射量等の気象データに応じて定
まる養水についての供給時刻、供給量、養分濃度等を目
標値として設定し、その目標値を、日射量等の気象デー
タの実測値に応じて補正して、その補正された供給時
刻、供給量、養分濃度等で養水を自動的に供給するよう
にしたものである。Conventionally, there has been a technique disclosed in Japanese Patent Application Laid-Open No. 62-262924. In this conventional technique, a supply time, supply amount, nutrient concentration, and the like for nutrient water determined according to weather data such as the amount of solar radiation are set as target values, and the target value is used as an actual measurement value of weather data such as the amount of solar radiation. The water is automatically supplied based on the corrected supply time, supply amount, nutrient concentration, and the like.
上記従来技術において、例えば、日射量に応じて養水
の供給時刻が設定され補正されて実際の養水の供給が日
没間近に行われてしまう場合もある。日没間近に養水供
給されると、夜間にあって作物に対し与える養水の量が
必要以上に多い状態となり、その結果、作物が水分を多
く吸収しすぎて果実が裂ける問題が発生する。In the related art, for example, the supply time of the nutrient water may be set and corrected according to the amount of solar radiation, and the actual supply of the nutrient water may be performed near sunset. If the water is supplied near sunset, the amount of water supplied to the crop during the night will be unnecessarily large, resulting in the problem that the crop absorbs too much water and the fruit breaks. .
上記の課題を解決するために、この発明は、養水を栽
培植物に自動的に供給する養水供給装置であって、日射
量を検出する日射量検出器を設け、前回養水供給時から
の積算日射量が一定量を超えると次回の養水供給を行な
うように構成するとともに、養水供給が行われなくなる
時刻を日没時刻より設定時間前に設定可能とし、該養水
供給が行われなくなる時刻以降に積算日射量が一定量を
超えても養水供給は行なわない構成としたことを特徴と
する養水供給装置としたものである。In order to solve the above problems, the present invention is a nutrient water supply device that automatically supplies nutrient water to cultivated plants, provided with an insolation detector that detects the amount of insolation, When the accumulated amount of solar radiation exceeds a certain amount, the next time the supply of nutrient water is performed, and the time at which the supply of nutrient water is stopped can be set before the set time before the sunset time. The water supply apparatus is characterized in that the water supply is not performed even if the accumulated solar radiation exceeds a certain amount after the time when the water supply stops.
この発明の養水供給装置は、前回養水供給時からの積
算日射量が一定量を超えると次回の養水供給を行なうの
で、日射量に応じた適確な養水供給が可能となり、しか
も、養水供給が行われなくなる時刻を日没時刻より設定
時間前に設定して、その設定した時刻以降に積算日射量
が一定量を超えても養水供給は行なわれなくなるので、
日没間近の養水供給が防止されて、夜間にあって作物に
対し与える養水の量が必要以上に多い状態となることが
なくなり、その結果、作物が水分を多く吸収しすぎて果
実が裂ける問題の発生を防止できる。The water supply device of the present invention performs the next water supply when the accumulated amount of solar radiation from the previous water supply time exceeds a certain amount, so that it is possible to supply water accurately according to the amount of solar radiation, and The time at which no water supply is performed is set before the set time before the sunset time, and no water supply is performed even if the integrated solar radiation exceeds a certain amount after the set time.
The supply of nutrients near sunset is prevented, and the amount of water supplied to crops at night is not unnecessarily large. As a result, the crops absorb too much water and fruit is lost. The occurrence of a tearing problem can be prevented.
以下、図面にあらわされた実施例について説明する。 Hereinafter, embodiments shown in the drawings will be described.
第１図は水耕栽培用の温室40の内部を示す図で、互い
に平行な通路41,…の両側に形成された段状の栽培ベッ
ド棚42の上にロックウールでできたマット43が敷かれ、
その上に作物45が植え付けられたロックウール製の植付
キューブ46が所定間隔をおいて載置されている。栽培ベ
ッド棚42を挾んだ通路41と反対側は排水溝48で、排水溝
内に養水供給ホース49が敷設され、該養水供給ホースか
らは両側にドリップホース50が分岐して設けられ、更に
そのドリップホースの先端部に取り付けた点滴スパイク
51が植付キューブ46に臨んでいる。また、通路41の両脇
には寒冷時に使用される暖房用の放熱管52が配設されて
いる。FIG. 1 is a view showing the inside of a greenhouse 40 for hydroponics, in which a mat 43 made of rock wool is laid on a stepped cultivation bed shelf 42 formed on both sides of a parallel passage 41,. He
A rock wool planting cube 46 on which a crop 45 is planted is mounted thereon at a predetermined interval. On the side opposite to the passage 41 sandwiching the cultivation bed shelf 42 is a drain groove 48, in which a nutrient water supply hose 49 is laid, and from the nutrient water supply hose, a drip hose 50 is provided on both sides. , And a drip spike attached to the tip of the drip hose
51 faces the planting cube 46. In addition, on both sides of the passage 41, radiating pipes 52 for heating used in cold weather are provided.
養水供給装置１は第２図に示す構成で、水３、養液
（肥料の水溶液）4,5、酸７およびアルカリ８の各タン
クに接続された混合槽10を有し、該混合槽で混合生成さ
れた養水11が養水管12を通じて前記養水供給ホース49,
…に供給されるようになっている。そして、養水管12の
中間部には管内を通過する養水の養分濃度（EC）とペー
ハー（pH）を検出する供給EC計15とpH計16がそれぞれ設
けられているとともに、温室40の屋根には日射量を前回
養水供給時から積算して検出する積算日射計17が設けら
れており、これら各検出器15,16,17の検出結果が制御装
置20に入力される。制御装置20でそれを処理することに
より、各ポンプ21,22,23,24,25および電磁制御弁26,27,
28に適宜駆動信号が出力される。The nutrient water supply device 1 has a configuration shown in FIG. 2, and has a mixing tank 10 connected to tanks for water 3, nutrient solution (aqueous fertilizer solution) 4, 5, acid 7 and alkali 8, and the mixing tank. The nutrient water 11 mixed and produced in the nutrient water supply hose 49,
…. In addition, a supply EC meter 15 and a pH meter 16 for detecting nutrient concentration (EC) and pH (pH) of nutrient water passing through the tube are provided at an intermediate portion of the water supply pipe 12, and a roof of the greenhouse 40 is provided. Is provided with an integrated solar radiation meter 17 for integrating and detecting the amount of solar radiation from the time of the previous supply of nutrient water, and the detection results of these detectors 15, 16, 17 are input to the control device 20. By processing it in the control device 20, each pump 21, 22, 23, 24, 25 and solenoid control valves 26, 27,
A drive signal is output to 28 as appropriate.
すなわち、第３図に示すように、積算日射計17の検出
値Ｌと第一の日射量設定器30による設定値L1とを比較
し、積算日射量Ｌが設定値L1を超えた（Ｌ＞L1）とき、
もしくはタイマ31によって設定されている一定時間t1が
経過したときに、養水供給回路32が作動して養水が供給
される。したがって、日射が強いときは短い時間間隔で
養水が供給され、日射があまり強くないときは比較的長
い時間間隔で養水が供給され、これによりもさらに日射
が弱いときは予め設定されている時間間隔t1（日出から
最初の養水供給までの時間）で養水が供給される。この
ように養水供給の時間間隔tnは日射量に応じて変化す
る。That is, as shown in FIG. 3 compares the set value L 1 by the detection value L and the first solar radiation setter 30 of the integrated solar radiation meter 17, the integrated solar radiation L has exceeded the set value L 1 ( L> L 1 ),
Or when a predetermined time t 1 which is set by the timer 31 has elapsed, Yomizu is supplied Yomizu supply circuit 32 is actuated. Therefore, when the solar radiation is strong, the nutrient water is supplied at short time intervals, and when the solar radiation is not so strong, the nutrient water is supplied at a relatively long time interval. Nutrient water is supplied at a time interval t 1 (time from sunrise to first nutrient water supply). As described above, the time interval tn of the water supply varies depending on the amount of solar radiation.
そして、第６図および第７図において、日出（SR）か
ら遅くともt1時間経過後に第一回目の養水供給を行な
い、日没（SS）のt2時間前以降には養水供給を行なわな
いように設定されている。同図中、A1,A2は時間と積算
日射量との関係を、B1,B2は養水供給用のパルス間隔を
あらわす。このパルスが発生したときに前記養水供給回
路32が作動する。Then, in FIG. 6 and FIG. 7, performs no later than the first round of Yomizu supplied to 1 hour after t from sunrise (SR), the Yomizu supply in after t 2 hours before sunset (SS) It is set not to perform. In the figure, A1 and A2 represent the relationship between time and the integrated amount of solar radiation, and B1 and B2 represent pulse intervals for supplying nutrient water. When this pulse is generated, the nutrient water supply circuit 32 operates.
また、第４図に示すように、積算日射量Ｌと第二の日
射量設定器33による設定値L2とを比較し、積算日射量Ｌ
が零（Ｌ＝０）のときは養分濃度を高く（EC2）、積算
日射量Ｌが設定値L2を超えたとき（Ｌ＞L2）は養分濃度
を低く（EC1）、積算日射量Ｌがその中間のときは養分
濃度が比例して変化するようになっている。尚、第５図
は、日射量と養水の養分濃度との関係をあらわす図であ
る。Further, as shown in FIG. 4, compared with the setting value L 2 by integration insolation L and the second solar radiation setter 33, the integrated solar radiation L
Is zero (L = 0), the nutrient concentration is high (EC 2 ), and when the accumulated solar radiation L exceeds the set value L 2 (L> L 2 ), the nutrient concentration is low (EC 1 ). When the amount L is intermediate, the nutrient concentration changes proportionally. FIG. 5 is a diagram showing the relationship between the amount of solar radiation and the nutrient concentration of nutrient water.
上述したように積算日射量に応じて供給養水の養分濃
度を調節する代りに、第２図において想像線で示す如
く、任意の植付チューブ46に残留している養水の養分濃
度を検出する残留EC計35を設け、この検出器35の検出結
果に応じて供給養水の濃度を調整するようにしてもよ
い。Instead of adjusting the nutrient concentration of the supply water according to the accumulated solar radiation as described above, the nutrient concentration of the nutrient water remaining in any planting tube 46 is detected as shown by the imaginary line in FIG. A residual EC meter 35 may be provided to adjust the concentration of the supplied nutrient water according to the detection result of the detector 35.
なお、pH計16によるpH検出値が所定の値になるよう、
酸７およびアルカリ８、または、酸７或はアルカリ８が
適宜混合槽10に投入される。It should be noted that the pH value detected by the pH meter 16 is set to a predetermined value.
Acid 7 and alkali 8, or acid 7 or alkali 8, are charged into mixing tank 10 as appropriate.
各図面については以下の通り。 第１図：温室内部の斜視図。 第２図：本発明の一実施例である養水供給装置の構成
図。 第３図：養水供給装置の制御装置の説明図。 第４図：養水供給装置の制御装置の別例を示す説明図。 第５図：日射量と、調節される養水の養分濃度との関係
を示す図。 第６図：ある日射条件下における養水供給例を示す図。 第７図：別の日射条件下における養水供給例を示す図。 図中の主な符号については以下の通り。 1:養水供給装置、3:水、4,5:養液 7:酸、8:アルカリ、11:養水 15:供給EC計、16:pH計、17:積算日射計（日射量検出
器） 20:制御装置、40:温室、43:ロックウールマット 45:栽培植物Each drawing is as follows. FIG. 1: A perspective view of the inside of a greenhouse. FIG. 2 is a configuration diagram of a water supply device according to an embodiment of the present invention. FIG. 3 is an explanatory view of a control device of the water supply device. FIG. 4: Explanatory drawing showing another example of the control device of the nutrient supply device. FIG. 5: A diagram showing the relationship between the amount of solar radiation and the nutrient concentration of the adjusted nutrient water. FIG. 6 is a diagram showing an example of nutrient water supply under certain solar radiation conditions. FIG. 7 is a diagram showing an example of nutrient water supply under another solar radiation condition. The main symbols in the figure are as follows. 1: Nutrient supply device, 3: Water, 4, 5: Nutrient solution 7: Acid, 8: Alkaline, 11: Nutrient water 15: Supply EC meter, 16: pH meter, 17: Integrated solar radiation meter (solar radiation detector 20: Control device, 40: Greenhouse, 43: Rock wool mat 45: Cultivated plant
フロントページの続き (72)発明者 山口 達也 愛媛県伊予郡砥部町八倉１番地 井関農 機株式会社技術部内 合議体 審判長 酒井 雅英 審判官 田中 久直 審判官 大高 とし子 (56)参考文献 特開 昭62−262924（ＪＰ，Ａ) 特開 昭63−36720（ＪＰ，Ａ) 特開 昭61−67420（ＪＰ，Ａ)Continuation of the front page (72) Inventor Tatsuya Yamaguchi 1 Yachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. 62-262924 (JP, A) JP-A-63-36720 (JP, A) JP-A-61-67420 (JP, A)
Claims (1)
給装置であって、日射量を検出する日射量検出器を設
け、前回養水供給時からの積算日射量が一定量を超える
と次回の養水供給を行なうように構成するとともに、養
水供給が行われなくなる時刻を日没時刻より設定時間前
に設定可能とし、該養水供給が行われなくなる時刻以降
に積算日射量が一定量を超えても養水供給は行なわない
構成としたことを特徴とする養水供給装置。1. A nutrient water supply device for automatically supplying nutrient water to a cultivated plant, comprising a solar radiation detector for detecting the amount of solar radiation, wherein the accumulated amount of solar radiation from the last time of the supply of nutrient water is a fixed amount. If it exceeds, the next time the nutrient water supply is configured, and the time when the water supply is not performed can be set before the set time before the sunset time, and the integrated solar radiation after the time when the water supply is not performed A water supply system that does not supply water even if the amount exceeds a certain amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63096633A JP2757941B2 (en) | 1988-04-19 | 1988-04-19 | Nourishment supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63096633A JP2757941B2 (en) | 1988-04-19 | 1988-04-19 | Nourishment supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01269439A JPH01269439A (en) | 1989-10-26 |
| JP2757941B2 true JP2757941B2 (en) | 1998-05-25 |
Family
ID=14170239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63096633A Expired - Fee Related JP2757941B2 (en) | 1988-04-19 | 1988-04-19 | Nourishment supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2757941B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002300818A (en) * | 2001-04-05 | 2002-10-15 | Iseki & Co Ltd | Nourishing liquid-piping system for cultured plant |
| JP5246576B2 (en) * | 2009-02-04 | 2013-07-24 | 有限会社上野園芸 | Water supply method for plants and hydroponics system |
| JP5334188B2 (en) * | 2009-08-13 | 2013-11-06 | 国立大学法人愛媛大学 | Cultivated plant local water droplet discharge device and cultivated plant local water droplet discharge method |
| JP6240837B2 (en) * | 2013-10-22 | 2017-12-06 | 株式会社ルートレック・ネットワークス | Hydroponic soil cultivation system, nutrient solution tillage control server, and nutrient solution tillage control program |
| JP6045480B2 (en) * | 2013-11-26 | 2016-12-14 | 株式会社にいみ農園 | Watering method and apparatus in hydroponics |
| JP2015223118A (en) * | 2014-05-28 | 2015-12-14 | こもろ布引いちご園株式会社 | Control method of plant growth environment, control device, and program for control |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0785694B2 (en) * | 1986-05-10 | 1995-09-20 | ▲高▼木産業株式会社 | Hydroponics equipment for plants |
| JPS6336720A (en) * | 1986-07-31 | 1988-02-17 | 株式会社誠和 | Method and apparatus for supplying hydroponic liquid in hydroponic culture |
-
1988
- 1988-04-19 JP JP63096633A patent/JP2757941B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01269439A (en) | 1989-10-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |