System and method for measuring liquid level by image

A technology of image and liquid level, which is applied in the direction of measuring the depth of open water sources, measuring devices, liquid/fluid solid measurement, etc., and can solve the problems that the liquid level changes cannot be reflected sensitively

Inactive Publication Date: 2008-09-10
KOREA INST OF CIVIL ENG & BUILDING TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

While this method has the advantage of being able to measure the liquid level with considerable accuracy because the stabilizing well stabilizes the liquid level contained within it, since debris is likely to accumulate inside the structure or the stabilizing well, Therefore, this method also has the disadvantage that it cannot reflect the change of liquid level sensitively.

Method used

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  • System and method for measuring liquid level by image
  • System and method for measuring liquid level by image
  • System and method for measuring liquid level by image

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Experimental program
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Embodiment Construction

[0029] Embodiment of the invention

[0030] The object of the present invention is achieved by providing a system for measuring a liquid level by an image, the system comprising: a measuring rod installed in the liquid; an image acquisition part which is located away from a position where the measuring rod is installed, and An image is acquired by photographing a vicinity of a liquid surface of the liquid on which the measuring rod is installed; and a liquid level identification part which controls the image acquisition part to acquire the image, wherein the liquid level identification part receives information from the The image acquired by the image acquisition section and determine the liquid level.

[0031] The image acquisition section includes: a camera that photographs the vicinity of the liquid surface where the measuring rod is installed; and a fan-tilt that rotates the camera vertically and horizontally . The liquid level recognition part includes: an image grabber...

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Abstract

The present invention relates to a system and a method for measuring liquid level by image, and more particularly to a system and a method for measuring liquid level by image, which is capable of measuring a liquid level accurately and automatically by photographing a proximity of liquid surface where a staff gage contacts the liquid using an image capturing apparatus, such as a camera, being located apart from the liquid to be measured, and by analyzing the photographed footage. The system for measuring liquid level by image comprises: a staff gage installed in the liquid; an image capturing part provided with a distance from where the staff gage is installed and capturing an image by photographing a proximity of liquid surface where the staff gage is installed; and a level recognition part controlling a capture of the image, wherein the level recognition part receives the image captured by the image capturing part and determines the liquid level.

Description

technical field [0001] The present invention relates to a system and method for measuring liquid level by image, and more particularly to such a system and method for measuring liquid level by image by using, for example, a camera positioned remotely from the liquid to be measured The liquid level can be measured accurately and automatically by taking pictures of the proximity of the liquid level where the measuring rod is installed, and analyzing the captured images. Background technique [0002] Various methods of measuring liquid levels have traditionally existed, which are suitable for measuring eg liquids in liquid storage tanks, water levels in dams, or water levels in rivers. The simplest of those methods is to install a measuring rod with a scale in the water and measure the water level by visually observing the scale. Although this method has the advantage that the observer can directly measure the water level with the naked eye, due to the nature of the measuremen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F23/02
CPCG01C13/008G01F23/04Y02A90/30G01F23/80G01F23/02G01F23/00
Inventor 金源金致宁金东求李瓒柱黄皙焕
Owner KOREA INST OF CIVIL ENG & BUILDING TECH
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