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.

公开(公告)号：US20230332943A1

公开(公告)日：2023-10-19

申请号：US18339315

申请日：2023-06-22

Applicant: DENSO CORPORATION

Inventor： Naoya USHIGOME ,  Tomoko SAKAMOTO

IPC: B60S1/08 ,  G01J1/04

CPC classification number: G01J1/0411 ,  B60S1/0837 ,  G01J2001/4266

Abstract: An optical sensor device includes a plurality of light-emitting elements arranged on an arrangement surface to be apart from each other in an x direction perpendicular to a z direction that is a direction connecting an area corresponding to the plurality of light-emitting elements and an area corresponding to a light-receiving element. A light-guide lens portion includes a plurality of incident portions respectively corresponding to the plurality of light-emitting elements and respectively receiving light from the plurality of light-emitting elements. The plurality of incident portions is provided with an equalizing portion configured to equalize intensity of the light incident on the light-guide lens portion along the x direction by reducing the intensity of the light along the z direction out of the light that is emitted from the light-emitting element, while allowing an incident of part of the light emitted from the light-emitting element adjacent to the corresponding light-emitting element.