公开(公告)号：US20240415081A1

公开(公告)日：2024-12-19

申请号：US18815572

申请日：2024-08-26

Applicant: DENSO CORPORATION

Inventor： Yusuke HIRONO ,  Naohisa NIIMI ,  Norihiro KURUMADO

IPC: A01G25/16 ,  F17D5/06

Abstract: A first water supply valve controls a pressure of water supplied from one end portion side of a distribution tube to control an amount of irrigation water. A second water supply valve controls a pressure of water supplied from another end portion side of the distribution tube to control an amount of irrigation water. A first abnormality sensor detects an abnormal state of water supply from the one end portion side of the distribution tube. A second abnormality sensor detects an abnormal state of water supply from the other end portion side of the distribution tube. A control device controls a valve opening degree of the first water supply valve and the second water supply valve when an abnormal state is detected by the first abnormality sensor or the second abnormality sensor.

公开(公告)号：US20250113788A1

公开(公告)日：2025-04-10

申请号：US18982387

申请日：2024-12-16

Applicant: DENSO CORPORATION

Inventor： Naoya USHIGOME ,  Yusuke HIRONO ,  Naohisa NIIMI ,  Norihiro KURUMADO

IPC: A01G25/16

Abstract: A watering system includes a pF sensor, a VWC sensor, and a control device that controls an irrigation operation. The control device controls the irrigation using the pF value detected by the pF sensor and the volume water content detected by the VWC sensor. The control device controls a start timing of the irrigation operation based on the pF value that is detected and a start threshold value. The control device controls a stop timing of the irrigation operation, which is in operation, based on the volume water content that is detected and a stop threshold value. The control device updates the stop threshold value based on fluctuation of the pF value that is detected.