Unlock instant, AI-driven research and patent intelligence for your innovation.

Water level meter with digital video frequency

A digital video, water level gauge technology, applied in liquid/fluid solids measurement, engine lubrication, instruments, etc., can solve problems such as shutdown and production stoppage, only a single detection point can be detected, direct contact, etc.

Inactive Publication Date: 2008-06-11
昆明利普机器视觉工程有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing monitoring instruments for water level and liquid material level, or there is direct contact between the measured material and the water level gauge, which is easy to be damaged and difficult to install and maintain; during installation and maintenance, work and production must be stopped, which will cause more losses to thermal power plants and steel plants that must work continuously Large; or there is a narrow detection area, only a single detection point can be detected; and there are technical deficiencies such as the inability to visually observe the detected medium
[0003] Year-on-year technology, US patent specification, US006098029A, August 1, 2000, the title of the invention is "Liquid-Level Position Measurement Method and System LIQUID-LEVEL POSITION MEASURING METHOD AND SYSTEM", the application discloses the use of machine vision technology to measure the liquid level The measurement method mainly involves measuring the liquid level measurement in reservoirs, rivers, and fixed static containers. It cannot realize video measurement of multiple liquid levels in the field of view of the same video input device and the container containing the measured liquid is in a moving state, nor can it Automatic image tracking of the liquid level indicator on the container of the liquid being measured

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Water level meter with digital video frequency
  • Water level meter with digital video frequency
  • Water level meter with digital video frequency

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0021] The first example: detecting the two water levels of the boiler drum

[0022] Boiler drum full of water and water shortage accident is one of the major vicious accidents. Full water will cause serious water in the boiler steam, water impact on the steam pipeline, and even damage to subsequent equipment. In order to ensure the safety of boiler operation, real-time monitoring and installation of alarm devices are required for the two water level points of the boiler drum head and steam drum tail, so as to ensure that there are double or even triple alarm devices for the water level. This is essential to avoid major boiler accidents. accidents and economic losses.

[0023] The digital video water level gauge is composed of a video input device (1), an image acquisition card (2), a microprocessor (3), a display screen (4) and a supplementary lighting device (5). The video input device (1) transmits the analog or digital image of the water level to the image acquisition ca...

no. 2 example

[0036] Second example: automatic image tracking of liquid level display

[0037] The digital video water level gauge of the present invention automatically tracks the image of the liquid level display installed on the container containing the liquid to be measured. Automatic image tracking is to use the correlation function between the real-time scene image and the sample image selected at the previous moment to determine the best matching position of the two images after digitizing the image of the water level gauge, so as to determine the position of the target. The main working states of related modules include image data storage, image data acquisition in search area, direct template transmission, correlation matching calculation, template correction, target recognition (attached Figure 4 shown). The steps of the correlation matching operation are to send the image function into the matching operation unit, calculate the absolute difference and accumulate it, after the te...

no. 3 example

[0038] Third example: when the container containing the liquid to be measured is in motion

[0039] The video digital water level gauge of the present invention can also be applied to the fields of biomedicine and chemical industry, especially when the container containing the measured liquid is in motion as an example, the liquid level monitoring of the present invention is further described in detail:

[0040] The container containing the liquid to be measured is in a state of motion: generally divided into movement along the horizontal direction (usually called the X axis); movement along the vertical direction (usually called the Y axis); movement along the longitudinal direction (usually called the Y axis); is the Z axis); there is also a rotational movement in the vertical direction. In practical applications, the container containing the liquid to be measured may only perform one of the above-mentioned movements, or a combination of two of them, or even a combination of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a digital video water gage in the field of machine visual technology. It is formed by a video input device (1), an image collecting card (2), a microprocessor (3) and a display screen (4). It adopts machine visual technology to test the water stage, which comprises the following steps: water stage image collecting, digital image processing and analyzing, storing and displaying. The water can achieve the multi-liquid stage video measuring to one vision and weather the tank with tested liquid moves.

Description

technical field [0001] The invention relates to a digital video water level gauge, which belongs to the technical field of machine vision. Background technique [0002] Existing monitoring instruments for water level and liquid material level, or there is direct contact between the measured material and the water level gauge, which is easy to be damaged and difficult to install and maintain; during installation and maintenance, work and production must be stopped, which will cause more losses to thermal power plants and steel plants that must work continuously large; or there is a narrow detection area, which can only detect a single detection point; and there are technical deficiencies such as the inability to visually observe the detected medium. [0003] Year-on-year technology, US patent specification, US006098029A, August 1, 2000, the title of the invention is "Liquid-Level Position Measurement Method and System LIQUID-LEVEL POSITION MEASURING METHOD AND SYSTEM", the ap...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01F23/00
Inventor 李一民潘晓露
Owner 昆明利普机器视觉工程有限公司