Method of measuring slope of drainpipe

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United States of America Patent

PATENT NO 11821756
APP PUB NO 20210372792A1
SERIAL NO

17251176

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Abstract

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Proposed is a method of measuring the slope of a drainpipe while moving through the drainpipe. The method includes following steps: a) continuously measuring a slope of a pipe using a slope sensor disposed in a vehicle when the vehicle moves; b) measuring distances to a ceiling of the pipe in real time through non-contact sensors disposed at four positions, that is, at both sides of front and rear portions the vehicle, the step b) being performed simultaneously with the step a); and c) calculating slope differences, which are the degrees of inclination to the front, rear, left, and right using trigonometry and then correcting the slope by reflecting the slope differences to the slope measured in the step a), when there are differences in the distances measured in step b).

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Patent Owner(s)

Patent OwnerAddress
NUVOTEC CO LTD42-6 TAEJANGGONGDAN-GIL WONJU-SI GANGWON-DO 26311
BLUEFOX SYSTEMS INC1409HO 610 GYEONGIN-RO GURO-GU SEOUL 08213

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hwang, Mun-Gi Wonju-si, KR 1 0
Jo, Gyu-Hong Bucheon-si, KR 1 0
Lee, Jae-Hyun Gunpo-si, KR 100 662
Park, Joon-Ha Yongin-si, KR 13 71
Park, Jum-Ok Incheon, KR 1 0
Yoon, Sung-Soo Seoul, KR 10 58

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