JPH03206823A - Underground water sprinkler for lawn - Google Patents
Underground water sprinkler for lawnInfo
- Publication number
- JPH03206823A JPH03206823A JP105690A JP105690A JPH03206823A JP H03206823 A JPH03206823 A JP H03206823A JP 105690 A JP105690 A JP 105690A JP 105690 A JP105690 A JP 105690A JP H03206823 A JPH03206823 A JP H03206823A
- Authority
- JP
- Japan
- Prior art keywords
- water
- lawn
- soil
- pipe
- underground
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 239000002689 soil Substances 0.000 claims abstract description 30
- 238000005259 measurement Methods 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 7
- 238000009530 blood pressure measurement Methods 0.000 claims description 3
- 230000005855 radiation Effects 0.000 abstract description 4
- 229930002875 chlorophyll Natural products 0.000 abstract description 2
- 235000019804 chlorophyll Nutrition 0.000 abstract description 2
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 abstract description 2
- 244000025254 Cannabis sativa Species 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- YTAHJIFKAKIKAV-XNMGPUDCSA-N [(1R)-3-morpholin-4-yl-1-phenylpropyl] N-[(3S)-2-oxo-5-phenyl-1,3-dihydro-1,4-benzodiazepin-3-yl]carbamate Chemical compound O=C1[C@H](N=C(C2=C(N1)C=CC=C2)C1=CC=CC=C1)NC(O[C@H](CCN1CCOCC1)C1=CC=CC=C1)=O YTAHJIFKAKIKAV-XNMGPUDCSA-N 0.000 description 2
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 description 1
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Abstract
Description
本発明は芝生用地中散水装置に関し、とくに地中埋設有
孔管からの散水量の制御を可能とした芝生用地中散水装
置に関する。The present invention relates to an underground watering system for lawns, and more particularly to an underground watering system for lawns that allows control of the amount of water sprinkled from a perforated pipe buried underground.
本出願人は特願平１−１７７０５３号に芝生生育環境制
御装置を開示した。本発明の説明に必要な範囲において
第１図を参照してこの装置を略記する。
芝生２０の生育環境の諸元、即ち大気、土壌、芝等の物
理量や化学量その他の変化する量を適当な測定器により
測定する。例えば、土壌状態を測定するために土壌温度
計１、土壌水分計２、水素イオン濃度ｐＨ計３、土壌抵
抗計４等を用い、芝生の状態を測定するために色彩色度
計６、葉緑素計７、放射温度計８等を用い、大気及び気
象条件を測定するために日射計９、温度計１０、湿度計
１１．雨量計１２、風向風速計１３等を用いる。これら
の測定器は測定値信号を発生しこれを散水制御装置（第
１図の地中散水制御装置２５に相当）へ送信する。
芝生２０に対する散水は、上記特願平１−１７７０５３
号の場合には散水ポンプ２９から流量計３０を介してス
プリンクラ−３８（第４図）へ給水することによって行
われる。散水制御装置（第１図の地中散水制御装置２５
に相当）が、上記測定値信号で表される環境の変化に応
じコントローラ２８を介して散水ポンプ２９を制御する
ことにより散水制御を行なう。The present applicant disclosed a lawn growing environment control device in Japanese Patent Application No. 1-177053. This apparatus will be briefly described with reference to FIG. 1 to the extent necessary for explaining the invention. The specifications of the growth environment of the lawn 20, that is, the physical quantities, chemical quantities, and other changing quantities of the atmosphere, soil, grass, etc., are measured using an appropriate measuring device. For example, a soil thermometer 1, a soil moisture meter 2, a hydrogen ion concentration pH meter 3, a soil resistance meter 4, etc. are used to measure the soil condition, and a colorimeter 6, a chlorophyll meter is used to measure the condition of the lawn. 7. A pyranometer 9, a thermometer 10, a hygrometer 11. to measure atmospheric and weather conditions using a radiation thermometer 8, etc. A rain gauge 12, a wind direction and speed gauge 13, etc. are used. These measuring instruments generate measured value signals and transmit them to a water sprinkler control device (corresponding to underground water sprinkler control device 25 in FIG. 1). Watering the lawn 20 is described in the above patent application No. 1-177053.
In this case, water is supplied from the sprinkler pump 29 to the sprinkler 38 (FIG. 4) via the flow meter 30. Watering control device (underground watering control device 25 in Figure 1)
) performs water sprinkling control by controlling the water sprinkling pump 29 via the controller 28 in response to changes in the environment represented by the measured value signal.
スプリンクラ−の散水はまず空気中へなされるので、散
かれた水の一部が蒸発したのち芝の葉に達し、さらに葉
の表面における蒸発や吸収を経た残り水が芝の根に届く
。即ち、スプリンクラ−は芝の根へ直接に給水するもの
ではなく、スプリンクラ−の散水量制御によっては芝の
根への給水量の的確な制御は困難である。
芝の根へ直接に給水するには第２図の有孔管５０を使う
方法が知られている。有孔管５０は管壁に穿たれた多数
の孔５２を有し、管の一端から給水され先端は閉塞され
ている。送水管３２から有孔管５０へ給水すれば、水は
有孔管５０の孔５２から土壌２２中へ流れ出して芝の根
に達する。しかし、単に有孔管５０へ送水するのみでは
、有孔管５０から土壌２２への流出量が各種条件、例え
ば管表面と土との密着の度合いや土壌含水量等によって
変動する。このため、地中散水の散水量の的確な制御は
従来実施されていなかった。
また従来の芝生用地中散水装置では、給水ネットワーク
が単純であり、管路の損壊等の非常事態において一部給
水管を選択的に手動で締切ることができる程度の設備で
あった。これでは細かな給水制御、例えば多量の水を必
要とする部分への給水量増強や給水量に応じた水圧調整
等には不十分であり、有孔管水圧の効果的な制御即ち効
果的な地中散水制御を行なうことができなかった。
従って、本発明の目的は散水量が調節可能である芝生用
地中散水装置を提供するにある。Sprinklers first spray water into the air, so some of the water evaporates before reaching the grass leaves, and the remaining water after evaporation and absorption on the leaf surface reaches the grass roots. That is, sprinklers do not directly supply water to the roots of the grass, and it is difficult to accurately control the amount of water supplied to the roots of the grass by controlling the amount of water sprayed by the sprinklers. A known method for directly supplying water to the roots of grass is to use a perforated pipe 50 as shown in FIG. The perforated pipe 50 has a large number of holes 52 bored in the pipe wall, and water is supplied from one end of the pipe, and the tip is closed. When water is supplied from the water pipe 32 to the perforated pipe 50, the water flows out from the hole 52 of the perforated pipe 50 into the soil 22 and reaches the roots of the grass. However, if water is simply sent to the perforated pipe 50, the amount of water flowing from the perforated pipe 50 to the soil 22 varies depending on various conditions, such as the degree of close contact between the pipe surface and the soil, the water content of the soil, and the like. For this reason, accurate control of the amount of underground water sprinkling has not been implemented in the past. In addition, conventional underground watering systems for lawns have a simple water supply network, and are equipped to the extent that some water supply pipes can be selectively and manually shut off in the event of an emergency such as a pipe being damaged. This is insufficient for detailed water supply control, such as increasing the amount of water supplied to areas that require a large amount of water, or adjusting water pressure according to the amount of water supplied. It was not possible to control underground watering. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an underground watering device for lawns in which the amount of watering can be adjusted.
第１図の実施例を参照するに、本発明による芝生用地中
散水装置は、芝生２０の下の土壌２２（第２図）内に埋
設された先端閉塞の有孔管５０、前記有孔管５０の管壁
に穿たれた多数の孔５２、圧力制御弁４７を介して有孔
管５０の非閉塞端に接続された送水管３７、芝生生育環
境の諸元を測定し諸元測定値信号を発生する測定器１−
１３、並びに前記諸元測定器及び前記圧力制御弁に接続
された地中散水制御装置２５を備えてなる構成を用いる
。その地中散水制御装置２５は、芝生生育環境の諸元の
変化に応じ前記圧力制御弁４７を介して前記有孔管５０
への給水を制御する。
好ましくは、芝生２０の異なる部分（例えば第２図の２
０ａ −２０ｇ）に布設され且つ電磁開閉弁４１を介し
給水管３５に接続された複数の主分岐管３６（例えば第
２図の３６ａ−３６ｇ）、前記各主分岐管３６の水圧を
測定し主分岐管の水圧測定値信号を発生する圧力計４０
、各主分岐管３６に圧力制御弁４７を介して接続された
先端閉塞の有孔管５０、その有孔管５ｏの管壁に穿たれ
た多数の孔５２、隣接主分岐管３６の間に接続された連
系弁４５、並びに信号線４９を介して前記圧力計４０、
前記電磁開閉弁４１、前記連系弁４５、及び前記圧力制
御弁４７に接続された地中散水制御装置２５を備えてな
る構成を用いる。動作時には、前記地中散水制御装置２
５が、前記諸元測定値信号及び前記水圧測定値信号の変
化に応じ前記諸弁４１゜４５．４７を選択的に制御する
如き出力信号を対応する弁４１．４５．４７に印加する
。
さらに好ましくは、芝生２０が生育する土壌２２中に遮
水膜５５（第４図）を埋設し、有孔管５ｏを前記芝生２
０と前記遮水膜５５との間の土壌２２中に配置する。Referring to the embodiment shown in FIG. 1, the underground watering device for lawns according to the present invention includes a perforated pipe 50 with a closed end buried in the soil 22 (FIG. 2) under the lawn 20, and a perforated pipe 50 with a closed end. A large number of holes 52 bored in the wall of the pipe 50, a water supply pipe 37 connected to the unblocked end of the perforated pipe 50 via a pressure control valve 47, and the specifications of the lawn growing environment are measured and a specification measurement value signal is sent. Measuring device 1-
13, and an underground water sprinkling control device 25 connected to the specification measuring device and the pressure control valve. The underground watering control device 25 controls the perforated pipe 50 via the pressure control valve 47 in response to changes in the specifications of the lawn growing environment.
control water supply to Preferably, different parts of the lawn 20 (e.g. 2 in FIG.
A plurality of main branch pipes 36 (e.g., 36a to 36g in FIG. 2) are installed in the main branch pipes 36 (for example, 36a to 36g in FIG. 2) installed in the main branch pipes 36 (36a to 36g in FIG. A pressure gauge 40 that generates a water pressure measurement signal in the branch pipe.
, a perforated pipe 50 with a closed end connected to each main branch pipe 36 via a pressure control valve 47, a large number of holes 52 bored in the wall of the perforated pipe 5o, and a hole between adjacent main branch pipes 36. The pressure gauge 40 via a connected interconnection valve 45 and a signal line 49,
A configuration including an underground water sprinkling control device 25 connected to the electromagnetic on-off valve 41, the interconnection valve 45, and the pressure control valve 47 is used. During operation, the underground watering control device 2
5 applies output signals to the corresponding valves 41, 45, 47 for selectively controlling the valves 41, 45, 47 in response to changes in the dimension measurement value signal and the water pressure measurement value signal. More preferably, a water-blocking membrane 55 (FIG. 4) is buried in the soil 22 where the lawn 20 grows, and the perforated pipe 5o is connected to the lawn 20.
0 and the water-shielding membrane 55 in the soil 22.
まず、各主分岐管３６の水圧が制御可能であることを説
明する。第３図の実施例において、例えば、主分岐管３
６ｆが、連系弁４５ｃ、 ４５ｄ、 ４５１．４５ｊを
通して給水を受は連系弁４５ｉが閉鎖されている場合に
、地中散水制御装置２５が、圧力計４０ （第１図参照
、第３図には図示せず）を介して主分岐管３６ｆの水圧
不足を検出し電磁開閉弁４１及び連系弁４５ｃ、４５ｄ
、４５１、４５ｊの開度調整ではその水圧不足を解消で
きないと判断した時には、連系弁４５ｉを開き主分岐管
３６ｆの両端から給水して水圧制御を行ないその水圧不
足を解消することができる。
主分岐管３６の水圧を所要レベルに維持できるならば、
各有孔管５０の給水量を地中散水制御装置２５からなさ
れる圧力制御弁４７の開度調整により制御することがで
きる。有孔管５０からの給水量を適正なレベルに調節す
ることにより、土壌２２中の水分量を迅速且つ適切に制
御することができる。
遮水膜５５を設ければ、第４図に示される地下水位を適
正レベルに維持することができる。
こうして、本発明の目的である「散水量が調節可能であ
る芝生用地中散水装置」の提供が達成させる。First, it will be explained that the water pressure of each main branch pipe 36 can be controlled. In the embodiment of FIG. 3, for example, the main branch pipe 3
6f receives water supply through interconnection valves 45c, 45d, and 451.45j. When interconnection valve 45i is closed, underground watering control device 25 receives water supply through interconnection valves 45c, 45d, and 451.45j. (not shown) detects the lack of water pressure in the main branch pipe 36f and activates the electromagnetic on-off valve 41 and interconnection valves 45c and 45d.
, 451, and 45j cannot resolve the water pressure shortage, the water pressure can be controlled by opening the interconnection valve 45i and supplying water from both ends of the main branch pipe 36f to eliminate the water pressure shortage. If the water pressure in the main branch pipe 36 can be maintained at the required level,
The amount of water supplied to each perforated pipe 50 can be controlled by adjusting the opening degree of the pressure control valve 47 from the underground watering control device 25. By adjusting the amount of water supplied from the perforated pipe 50 to an appropriate level, the amount of water in the soil 22 can be quickly and appropriately controlled. By providing the water-blocking membrane 55, the underground water level shown in FIG. 4 can be maintained at an appropriate level. In this way, the objective of the present invention is to provide an underground watering device for lawns in which the amount of watering can be adjusted.
第３図の実施例は、ゴルフ場のフェアウェイとグリーン
からなる芝面等のような７面の芝生部分２０ａ−２０ｇ
に対し７本の主分岐管３６ａ −３６ｇを設けた設備例
を示す。この実施例の各主分岐管３６ａ −３６ｇの水
圧か調整可能であることを先に説明したが、従来技術に
おける部分的締切も連系弁４５ａ −４５ｍの選択的開
閉により可能である。
地中散水制御装置２５は適当な記憶容量と制御プログラ
ムとを有するコンピュータにより構成することができる
。第５図の流れ図を参照して地中散水制御装置２５の動
作の一例を説明する。まずステップａでコンピュータの
メモリ上に芝生生育環境の諸元の目標値を設定する。設
定される目標値の種類は上記測定器１−４及び６−１３
の種類に対応する。
ステップｂで制御に使われる定数として管理目標値と実
測値との許容偏差ΔＡｉを入力し、コンピュータのメモ
リに書込む。次に、ステップｃＳｄ。
及びｅにおいて土壌に関する諸元の測定値、大気に関す
る諸元の測定値、及び芝に関する諸元の測定値をそれぞ
れ入力する。地中散水制御装置２５はステップｆにおい
て各諸元測定値と上記管理目標値との偏差ΔＮｉを計算
する。
ステップｇにおいて上記各諸元測定値の管理目標値から
の偏差ΔＮｉが上記許容偏差ΔＡｉを越えているか否か
を判断する。許容偏差ΔＡｉ未満である場合には、ステ
ップｎ又はステップｎ及びｐを経て測定と偏差算出が繰
返される。ステップｎは上記許容偏差ΔＡｉ変更の要否
を判断し、ステップｐは中断の要否を判断する。許容偏
差ΔＡｉを越えている場合には、制御がステップｈに進
み散水の実施について判断する。例えば、土壌水分含有
量の測定値がその管理目標値から許容偏差以上離れてお
り且つ他の環境諸元が地中散水を禁止しない場合には、
散水する旨の判断をする。また、異常渇水による給水制
限時等においては、散水の実施を自然環境の諸元のみに
よっては決定せず、外部条件で散水しないとの判断もな
される。
ステップｈで散水しないと判断された場合には、先のス
テップＣに帰り測定と偏差算出が繰返される。散水する
と判断された場合には、ステップｉでその検出された土
壌水分偏差を緩和するのに最適な散水範囲及び散水量を
地中散水制御装置ｚ５により算出する。さらにステップ
ｊでその散水範囲及び散水量に応じた弁制御信号を散水
ポンプ２９、電磁開閉弁４１、連系弁４５及び圧力制御
弁４７へ送出することにより、ステップにでその散水範
囲及び散水量に従った散水を土壌２２に加える。同時に
ステップｍに示されるように、散水位置、散水量、散水
圧力等を地中散水制御装置２５に取込み、必要に応じそ
れらの情報の表示及び／又は記録をする。
上記最適散水範囲及び散水量の決定は、従来管理者の長
年の経験に頼ってなされていた。本発明によれば、地中
散水制御装置２５により、必要に応じ熟練者の経験知識
及び他の諸元の測定値をも総合的に考慮した手法を以て
合理的にしかも短時間で自動的に上記最適散水範囲及び
散水量を定めることができる。さらに地中散水制御装置
２５は、測定器１−４及び６−１３の測定値のフィード
バック制御下において上記最適散水範囲及び散水量の散
水を的確に行ない土壌水分を所要の目標値に保つ。即ち
、高信頼度を有する土壌水分の自動制御が実現される。The embodiment shown in FIG. 3 has seven grass areas 20a to 20g, such as a grass surface consisting of a fairway and a green of a golf course.
An example of equipment is shown in which seven main branch pipes 36a to 36g are provided. Although it has been explained above that the water pressure of each main branch pipe 36a-36g in this embodiment can be adjusted, partial shut-off in the prior art is also possible by selectively opening and closing interconnection valves 45a-45m. The underground water sprinkling control device 25 can be constituted by a computer having an appropriate storage capacity and control program. An example of the operation of the underground water sprinkling control device 25 will be described with reference to the flowchart in FIG. First, in step a, target values for the specifications of the lawn growing environment are set in the computer memory. The types of target values to be set are the above measuring instruments 1-4 and 6-13.
corresponds to the type of In step b, the allowable deviation ΔAi between the management target value and the actual measurement value is input as a constant used for control, and is written into the memory of the computer. Next, step cSd. and e, input the measured values of the soil-related specifications, the atmospheric-related specifications, and the turf-related specifications, respectively. In step f, the underground watering control device 25 calculates the deviation ΔNi between each dimension measurement value and the management target value. In step g, it is determined whether the deviation ΔNi of each of the measured values of the specifications from the management target value exceeds the allowable deviation ΔAi. If the deviation is less than the allowable deviation ΔAi, the measurement and deviation calculation are repeated through step n or steps n and p. In step n, it is determined whether or not it is necessary to change the allowable deviation ΔAi, and in step p, it is determined whether or not interruption is necessary. If the allowable deviation ΔAi is exceeded, the control proceeds to step h to determine whether to perform watering. For example, if the measured value of soil moisture content deviates from its management target value by more than an allowable deviation and other environmental parameters do not prohibit underground watering,
Make a decision to sprinkle water. In addition, when water supply is restricted due to abnormal drought, etc., watering is not decided based solely on the specifications of the natural environment, and a decision not to water is made based on external conditions. If it is determined in step h that watering is not to be performed, the process returns to step C and the measurement and deviation calculation are repeated. When it is determined that watering is to be performed, in step i, the underground watering control device z5 calculates the optimal watering range and watering amount for alleviating the detected soil moisture deviation. Further, in step j, a valve control signal corresponding to the watering range and watering amount is sent to the watering pump 29, the electromagnetic on-off valve 41, the interconnection valve 45, and the pressure control valve 47, thereby controlling the watering range and the watering amount in step j. Add watering to soil 22 according to the following. At the same time, as shown in step m, the water sprinkling position, water sprinkling amount, water sprinkling pressure, etc. are taken into the underground water sprinkling control device 25, and the information is displayed and/or recorded as necessary. The above-mentioned optimal watering range and watering amount have conventionally been determined by relying on the many years of experience of managers. According to the present invention, the underground watering control device 25 automatically performs the above operations rationally and in a short time using a method that comprehensively considers the experienced knowledge of experts and measured values of other specifications as necessary. The optimal watering range and amount can be determined. Further, the underground watering control device 25 accurately performs watering in the above-mentioned optimum watering range and watering amount under feedback control of the measured values of the measuring devices 1-4 and 6-13 to maintain soil moisture at a required target value. That is, automatic control of soil moisture with high reliability is realized.
以上詳細に説明したように本発明の芝生用地中散水装置
は、芝生生育環境の諸元のべＰ１定値と有孔管入口側の
水圧の測定値とをフィードバックしながら地中散水の制
御を行なうので、地中散水量を確実に制御できる顕著な
効果を奏する。As explained in detail above, the underground watering device for lawns of the present invention controls underground watering while feeding back the P1 constant value of the lawn growing environment and the measured value of water pressure at the inlet side of the perforated pipe. Therefore, it has a remarkable effect of reliably controlling the amount of water sprinkled underground.
第１図は構成を示す図式的ブロック図、第２図は有孔管
による散水の説明図、第３図は配管における各種制御弁
配置の説明図、第４図は遮水膜の説明図、第５図は制御
の流れ図である。
索Ｊ１、８・・・放射温度計、 ９・・・日射旧、 １
０・・・温度計、 １１・・・湿度計、 １２・・・雨
量計、 １３・・・風向風速計、 ２０・・・芝生、
２２・・・土壌、 ２５・・・地中散水制御装置、 ２
８・・・コントローラ、２９・・・散水ポンプ、 ３０
・・・流徂計、 ３５・・・給水管、 ３６・・・主分
岐管、 ３７・・・送水管、 ３８・・・スプリンクラ
−４０・・・圧力計、 ４１・・・電磁開閉弁、 ４２
・・・ソレノイド、 ４５・・・連系弁、 ４７・・・
圧力制御弁、 ４９・・・信号線、 ５０・・・有孔管
、 ５２・・・孔、 ５５・・・遮水膜。Fig. 1 is a schematic block diagram showing the configuration, Fig. 2 is an explanatory diagram of water sprinkling using perforated pipes, Fig. 3 is an explanatory diagram of the arrangement of various control valves in piping, Fig. 4 is an explanatory diagram of the water-blocking membrane, FIG. 5 is a control flow chart. Cable J1, 8... Radiation thermometer, 9... Solar radiation, 1
0... Thermometer, 11... Hygrometer, 12... Rain gauge, 13... Wind direction and speed meter, 20... Lawn,
22...Soil, 25...Underground watering control device, 2
8... Controller, 29... Water pump, 30
...Flow rate meter, 35...Water supply pipe, 36...Main branch pipe, 37...Water pipe, 38...Sprinkler-40...Pressure gauge, 41...Solenoid on-off valve, 42
...Solenoid, 45...Connection valve, 47...
Pressure control valve, 49... Signal line, 50... Perforated pipe, 52... Hole, 55... Water-shielding membrane.
Claims (3)
前記有孔管の管壁に穿たれた多数の孔、圧力制御弁を介
して前記有孔管の非閉塞端に接続された送水管、芝生生
育環境の諸元を測定し諸元測定値信号を発生する測定器
、並びに前記諸元測定器及び前記圧力制御弁に接続され
た地中散水制御装置を備え、前記諸元の変化に応じ前記
地中散水制御装置により前記圧力制御弁を介して前記有
孔管への給水を制御してなる芝生用地中散水装置。(1) A perforated pipe with a closed end buried in the soil under the lawn;
A large number of holes drilled in the wall of the perforated pipe, a water supply pipe connected to the unblocked end of the perforated pipe via a pressure control valve, and specifications of the lawn growing environment are measured and a specification measurement value signal is generated. a measuring device that generates water, and an underground water sprinkling control device connected to the specification measuring device and the pressure control valve; An underground watering device for lawns that controls water supply to the perforated pipe.
閉弁を介し給水管に接続された複数の主分岐管、前記各
主分岐管に取付けられ主分岐管の水圧測定値信号を発生
する圧力計、前記各主分岐管に圧力制御弁を介して接続
され且つ当該主分岐管に対応する芝生部分の土壌中に埋
設された先端閉塞の有孔管、前記有孔管の管壁に穿たれ
た多数の孔、隣接主分岐管の間に接続された連系弁、並
びに前記圧力計、前記圧力制御弁、前記電磁開閉弁、及
び前記連系弁へ信号線を介して接続された地中散水制御
装置を備え、前記地中散水制御装置により前記諸元測定
値信号及び前記水圧測定値信号の変化に応じ前記諸弁を
選択的に制御してなる芝生用地中散水装置。(2) A plurality of main branch pipes buried in the soil in different parts of the lawn and connected to the water supply pipe via electromagnetic shut-off valves, and a main branch pipe attached to each of the main branch pipes to generate a water pressure measurement value signal of the main branch pipe. A pressure gauge, a perforated pipe with a closed end connected to each of the main branch pipes via a pressure control valve and buried in the soil of the lawn area corresponding to the main branch pipe, and a hole bored in the wall of the perforated pipe. A large number of hanging holes, a interconnection valve connected between adjacent main branch pipes, and a ground connected to the pressure gauge, the pressure control valve, the electromagnetic on-off valve, and the interconnection valve via a signal line. What is claimed is: 1. An underground watering system for lawns, comprising: an underground watering control device;
いて、前記芝生が生育する土壌中に遮水膜を埋設し、前
記有孔管を前記芝生と前記遮水膜との間の土壌中に配置
してなる芝生用地中散水装置。(3) In the underground watering device for lawns according to claim 1 or 2, an impermeable membrane is buried in the soil where the lawn grows, and the perforated pipe is connected to the soil between the lawn and the impermeable membrane. An underground watering device for lawns that is placed inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP105690A JPH03206823A (en) | 1990-01-09 | 1990-01-09 | Underground water sprinkler for lawn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP105690A JPH03206823A (en) | 1990-01-09 | 1990-01-09 | Underground water sprinkler for lawn |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03206823A true JPH03206823A (en) | 1991-09-10 |
| JPH0515406B2 JPH0515406B2 (en) | 1993-03-01 |
Family
ID=11490889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP105690A Granted JPH03206823A (en) | 1990-01-09 | 1990-01-09 | Underground water sprinkler for lawn |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03206823A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10049641B4 (en) * | 2000-11-08 | 2006-03-30 | Hoffmann, André | Colorimetric methods for determining the time of death, time and liquid content determination |
| WO2009028702A1 (en) * | 2007-08-27 | 2009-03-05 | Kubota-C.I. Co., Ltd. | Subirrigation system |
| JP2009072178A (en) * | 2007-08-27 | 2009-04-09 | Kubota Ci Kk | Subirrigation system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS515213A (en) * | 1974-07-03 | 1976-01-16 | Hitachi Ltd | Do tansosenifukugozaino seizoho |
| JPS51148232A (en) * | 1975-06-12 | 1976-12-20 | Komatsu Mfg Co Ltd | Method of irrigating field by pumppup |
| JPS55156521A (en) * | 1979-05-26 | 1980-12-05 | Tadashi Niimi | Soil improving apparatus in conglomerate soil |
| JPS63146728A (en) * | 1986-12-08 | 1988-06-18 | 三菱電線工業株式会社 | Embedded type irrigation pipe |
-
1990
- 1990-01-09 JP JP105690A patent/JPH03206823A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS515213A (en) * | 1974-07-03 | 1976-01-16 | Hitachi Ltd | Do tansosenifukugozaino seizoho |
| JPS51148232A (en) * | 1975-06-12 | 1976-12-20 | Komatsu Mfg Co Ltd | Method of irrigating field by pumppup |
| JPS55156521A (en) * | 1979-05-26 | 1980-12-05 | Tadashi Niimi | Soil improving apparatus in conglomerate soil |
| JPS63146728A (en) * | 1986-12-08 | 1988-06-18 | 三菱電線工業株式会社 | Embedded type irrigation pipe |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10049641B4 (en) * | 2000-11-08 | 2006-03-30 | Hoffmann, André | Colorimetric methods for determining the time of death, time and liquid content determination |
| WO2009028702A1 (en) * | 2007-08-27 | 2009-03-05 | Kubota-C.I. Co., Ltd. | Subirrigation system |
| JP2009072178A (en) * | 2007-08-27 | 2009-04-09 | Kubota Ci Kk | Subirrigation system |
| US9011041B2 (en) | 2007-08-27 | 2015-04-21 | Kubota-C.I. Co., Ltd. | Subirrigation system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0515406B2 (en) | 1993-03-01 |
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