IRRIGATION SYSTEM AND CONTROL DEVICE

To provide an irrigation system and control device that can perform an irrigation operation control suitable for a soil condition.SOLUTION: The irrigation system of the present invention comprises a pF sensor, a VWC sensor, and a control device that controls irrigation operation. The control device...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HIRONO YUSUKE, NIIMI NAOHISA, USHIGOME NAOYA
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide an irrigation system and control device that can perform an irrigation operation control suitable for a soil condition.SOLUTION: The irrigation system of the present invention comprises a pF sensor, a VWC sensor, and a control device that controls irrigation operation. The control device controls the irrigation operation using the pF value detected by the pF sensor and the volumetric water content detected by the VWC sensor. The control device controls the timing of starting the irrigation operation based on the detected pF value and a threshold for starting. The control device controls the timing of stopping the irrigation operation that is currently in operation based on the detected volumetric water content and a threshold for stopping. The control device updates the threshold for stopping based on the detected variation in the pF value.SELECTED DRAWING: Figure 4 【課題】土壌状態に適した潅水運転制御を実施できる潅水システムおよび制御装置を提供する。【解決手段】潅水システムは、pFセンサと、VWCセンサと、潅水運転を制御する制御装置とを備える。制御装置は、pFセンサで検出されたpF値とVWCセンサで検出された体積含水率とを用いて、潅水運転を制御する。制御装置は、検出されたpF値と開始用閾値とに基づいて潅水運転の開始タイミングを制御する。制御装置は、検出された体積含水率と停止用閾値とに基づいて運転中である潅水運転の停止タイミングを制御する。制御装置は、検出されたpF値の変動に基づいて停止用閾値を更新する。【選択図】図4