【特許請求の範囲】
【請求項１】
稲の生育状態を予測して、その予測された稲の生育状態に応じて水田に給水する水田水温調整装置において、
稲の生育や気象条件にあった適正水位を設定する水位設定手段と、
この水位設定手段によって設定された水位とするための給水量を求めるとともに、給水水源の水温及び水田の水温に基づいて、給水後の水温を計算し、適正な給水量を調整して給水データを出力する水位水温調整手段と、
この水位水温調整手段によって求められた給水データに基づいて水田へ給水する自動給水装置とを備えたことを特徴とする水田水温調整装置。
【請求項２】
請求項１記載の水田水温調整装置において、
上記水位水温調整手段は、現在の水田水温，水田水位，予測気温，予測日射量，予測風速，稲の葉面積指数，給水量，水源水温に基づいて、給水後の水田の水温を予測することを特徴とする水田水温調整装置。
【請求項３】
請求項１記載の水田水温調整装置において、
上記水位水温調整手段は、水田への大量給水による水温低下が推定される場合、給水量を低減することを特徴とする水田水温調整装置。
【請求項４】
稲の生育状態を予測して、その予測された稲の生育状態に応じて水田に給水する水田水温調整装置において、
稲の生育時期に基づいて水田の適正水位を設定する水位設定手段と、
所定期間先までの気象予測値，稲の生育状況，水源水温，水田水温，水田水位，および給水量に基づいて、給水後の水田水温を予測し、前記給水後の水田水温が適正となるような適正給水量を算出する水位水温調整手段と、
前記算出された適正給水量に基づき水田に対して給水する給水装置と、
前記給水後に前記水田水位が適正水位に到達していない場合は、前記水田水位が前記適正水位になるまで、前記水田水温調整手段による適正給水量の算出と、前記給水装置による水田への前記適正給水量に基づく給水と、を繰り返す手段と、
を備えたことを特徴とする水田水温調整装置。
[Claims]
[Claim 1]
In a paddy field water temperature adjusting device that predicts the growth state of rice and supplies water to the paddy field according to the predicted growth state of rice.
A water level setting means for setting an appropriate water level according to the growth of rice and weather conditions,
The amount of water supplied to obtain the water level set by this water level setting means is calculated, the water temperature after water supply is calculated based on the water temperature of the water supply source and the water temperature of the paddy field, and the appropriate water supply amount is adjusted to obtain the water supply data. Water level to output Water temperature adjustment means and
The paddy field water temperature adjusting device is provided with an automatic water supply device that supplies water to the paddy field based on the water supply data obtained by the water level water temperature adjusting means.
2.
In the paddy field water temperature adjusting device according to claim 1.
The above water level water temperature adjusting means predicts the water temperature of a paddy field after water supply based on the current paddy field water temperature, paddy field water level, predicted air temperature, predicted solar radiation amount, predicted wind speed, rice leaf area index, water supply amount, and water source water temperature. Paddy water temperature control device featuring.
3.
In the paddy field water temperature adjusting device according to claim 1.
The water level water temperature adjusting means is a paddy field water temperature adjusting device characterized by reducing the amount of water supplied when it is estimated that the water temperature drops due to a large amount of water supplied to the paddy field.
4.
In a paddy field water temperature adjusting device that predicts the growth state of rice and supplies water to the paddy field according to the predicted growth state of rice.
A water level setting means for setting an appropriate water level in a paddy field based on the growing season of rice,
Predict the paddy field water temperature after water supply based on the meteorological forecast values up to a predetermined period, rice growth status, water source water temperature, paddy field water temperature, paddy field water level, and water supply amount so that the paddy field water temperature after water supply becomes appropriate. Water level water temperature adjusting means to calculate the appropriate amount of water supply,
A water supply device that supplies water to paddy fields based on the calculated appropriate water supply amount,
If the paddy field water level has not reached the appropriate water level after the water supply, the appropriate water supply amount is calculated by the paddy field water temperature adjusting means and the appropriate water supply amount to the paddy field by the water supply device until the paddy field water level reaches the appropriate water level. Means to repeat water supply based on the amount of water supply,
Paddy water temperature control device characterized by being equipped with.
【０００６】
【課題を解決するための手段】
（１）上記目的を達成するために、本発明は、稲の生育状態を予測して、その予測された稲の生育状態に応じて水田に給水する水田水温調整装置において、稲の生育や気象条件にあった適正水位を設定する水位設定手段と、この水位設定手段によって設定された水位とするための給水量を求めるとともに、給水水源の水温及び水田の水温に基づいて、給水後の水温を計算し、適正な給水量を調整して給水データを出力する水位水温調整手段と、この水位水温調整手段によって求められた給水データに基づいて水田へ給水する自動給水装置とを備えるようにしたものである。
かかる構成により、水田の水位を上昇するように管理する際にも、水温が低下し過ぎないように給水するため、水温による冷害を防ぎ得るものとなる。
0006
[Means for solving problems]
(1) In order to achieve the above object, the present invention predicts the growth state of rice and supplies water to the paddy field according to the predicted growth state of rice. The water level setting means for setting the appropriate water level according to the conditions and the amount of water supply for setting the water level set by the water level setting means are obtained, and the water temperature after water supply is determined based on the water temperature of the water supply source and the water temperature of the paddy field. It is equipped with a water level water temperature adjusting means that calculates and adjusts an appropriate amount of water supply and outputs water supply data, and an automatic water supply device that supplies water to paddy fields based on the water supply data obtained by this water level water temperature adjusting means. Is.
With such a configuration, even when the water level of the paddy field is managed to rise, water is supplied so that the water temperature does not drop too much, so that cold damage due to the water temperature can be prevented.
（３）上記（１）において、好ましくは、上記水位水温調整手段は、水田への大量給水による水温低下が推定される場合、給水量を低減する。
（４）また、上記目的を達成するために、本発明は、稲の生育状態を予測して、その予測された稲の生育状態に応じて水田に給水する水田水温調整装置において、稲の生育時期に基づいて水田の適正水位を設定する水位設定手段と、所定期間先までの気象予測値，稲の生育状況，水源水温，水田水温，水田水位，および給水量に基づいて、給水後の水田水温を予測し、前記給水後の水田水温が適正となるような適正給水量を算出する水位水温調整手段と、前記算出された適正給水量に基づき水田に対して給水する給水装置と、前記給水後に前記水田水位が適正水位に到達していない場合は、前記水田水位が前記適正水位になるまで、前記水田水温調整手段による適正給水量の算出と、前記給水装置による水田への前記適正給水量に基づく給水と、を繰り返す手段と、を備えるようにしたものである。
かかる構成により、水田の水位を上昇するように管理する際にも、水温が低下し過ぎないように給水するため、水温による冷害を防ぎ得るものとなる。
(3) In the above (1), preferably, the water level water temperature adjusting means reduces the amount of water supply when it is estimated that the water temperature drops due to a large amount of water supplied to the paddy field.
(4) Further, in order to achieve the above object, the present invention predicts the growth state of rice and grows rice in a paddy field water temperature adjusting device that supplies water to the paddy field according to the predicted growth state of rice. A paddy field after water supply based on a water level setting means for setting an appropriate water level of a paddy field based on the time, a weather forecast value up to a predetermined period, rice growth status, water source water temperature, paddy field water temperature, paddy field water level, and water supply amount. A water level water temperature adjusting means that predicts the water temperature and calculates an appropriate amount of water supply so that the water temperature of the paddy field after the water supply becomes appropriate, a water supply device that supplies water to the paddy field based on the calculated appropriate amount of water supply, and the water supply. If the paddy field water level does not reach the appropriate water level later, the appropriate water supply amount is calculated by the paddy field water temperature adjusting means and the appropriate water supply amount to the paddy field by the water supply device until the paddy field water level reaches the appropriate water level. It is provided with a means for repeating water supply based on the above.
With such a configuration, even when the water level of the paddy field is managed to rise, water is supplied so that the water temperature does not drop too much, so that cold damage due to the water temperature can be prevented.