公开(公告)号：US11326924B2

公开(公告)日：2022-05-10

申请号：US17257308

申请日：2020-03-26

Applicant: Korea Institute of Civil Engineering and Building Technology

Inventor： Dong Sop Rhee

IPC: G01F23/263

Abstract: Disclosed in one embodiment are a device for measuring water level by using a capacitive technique, and a method therefor. A device for measuring water level comprises: an electrode unit which includes a first electrode and a second electrode arranged in parallel in a lengthwise direction, and which allow voltages to be applied to the first electrode and the second electrode; and a control unit for measuring the applied voltages, calculating the amount of reference charging time it takes to reach a second voltage from a predetermined first voltage on the basis of the measured voltages, and determining water level on the basis of the calculated reference charging time.

公开(公告)号：US11447996B2

公开(公告)日：2022-09-20

申请号：US17072369

申请日：2020-10-16

Applicant: KOREA INSTITUTE OF CIVIL ENGINEERING AND BUILDING TECHNOLOGY

Inventor： In Hwan Park ,  Dong Sop Rhee ,  Ho Je Seong

IPC: E05F1/00 ,  E05F15/75 ,  E03F5/10 ,  H01H35/18 ,  E06B9/00

Abstract: Provided is a structure for operating a watertight door by use of buoyancy. The structure includes: a detention tank for storing rainwater flowing from a street inlet; a buoyant member which is installed in the detention tank; and a sensor installed in the detention tank, in which if the buoyant member raised by the buoyant of the rainwater collected in the detention tank comes into contact with the sensor, the watertight door is automatically operated. The watertight door structure manually operated at localized heavy rain is improved, and the watertight door is automatically operated if the water level reaches the predetermined level.

公开(公告)号：US11840882B2

公开(公告)日：2023-12-12

申请号：US17257303

申请日：2020-04-03

Applicant: Korea Institute of Civil Engineering and Building Technology

Inventor： Dong Sop Rhee ,  Hyung Jun Kim

IPC: E04H9/14 ,  E06B9/00 ,  E05F15/71 ,  E06B7/06 ,  E06B9/68

CPC classification number: E06B9/00 ,  E04H9/145 ,  E05F15/71 ,  E06B7/06 ,  E06B2009/007 ,  E06B2009/6818

Abstract: The present disclosure provides a water-blocking device including a water-blocking plate installed on a floor of a passage, rails installed on both sidewalls of the floor, and a driving part configured to lift and lower the water-blocking plate, wherein, when the driving part is operated, the water-blocking plate is lifted and lowered along the rails.