Water level measuring device based on machine vision technology
A machine vision, water level measurement technology, applied in the direction of measurement device, engine lubrication, machine/engine, etc., can solve the problems of high installation cost, inability to observe the on-site water level, danger of staff, etc., to achieve the effect of high precision
Active Publication Date: 2017-12-15
QINGDAO HAICHENG AUTOMATION EQUIP
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Problems solved by technology
[0003] However, my country's research on mine water level measuring devices is obviously insufficient
The common water level measuring instrument is based on the principle of ultrasonic distance measurement to obtain the water level value. This kind of water level measuring instrument needs an external power supply, and the installation cost is high; and this method can only obtain the water level value, but cannot observe the water level on the spot. If you want to Observing the current water level of the open channel requires manual underground observation, which is not only time-consuming and labor-intensive, but also brings danger to the staff to a certain extent
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[0024] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0025] combine Figure 1 to Figure 3 As shown, the water level measurement device based on machine vision technology includes an illumination light source, an image acquisition module, an image processing and analysis module, a computer, and an output and display module.
[0026] The target to be measured is located at a fixed point in the open channel and floats on the water surface, which can avoid the influence of impurities such as silt. Specifically, the target to be tested can be fixed in the following ways:
[0027] A rectangular weir flume 1 is installed on the open channel, and the rectangular weir flume is set along the direction of water flow. The target 2 to be measured is connected to the middle position upstream of the open channel through a rope 3, and the target 2 to be measured floats on the water surface in the middle of the r...
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The invention discloses a water level measuring device based on machine vision technology. The water level measurement device includes an illumination source, an image acquisition module, an image processing and analysis module, a computer, and an output or display module. In the present invention, a target to be measured is placed at a certain fixed point of an open channel, and the target to be measured is floating on the water surface, and the image information of the target to be measured is obtained through an image acquisition module with the assistance of an illumination source, and then the image is processed through various calculations. Processing and analysis, extracting target information, after the computer receives the target information, output the water level data and the image information of the on-site water level through the output and display module, which can not only meet the high-precision requirements of water level measurement, but also observe the on-site water level on the computer image. The invention can realize long-distance observation of the water level and brings great convenience to mine workers.
Description
technical field [0001] The invention relates to a water level measuring device based on machine vision technology, which is suitable for mine water level measurement. Background technique [0002] As an important underground drainage facility, the open channel's flow change is of great significance for water damage monitoring. In order to reduce the probability of mine water disaster accidents and enable staff to master a large amount of real-time open channel flow data, it is particularly important to develop and design high-precision, high-quality mine water level measurement devices. [0003] However, the research on mine water level measuring devices is obviously insufficient in our country. The common water level measuring instrument is based on the principle of ultrasonic distance measurement to obtain the water level value. This kind of water level measuring instrument needs an external power supply, and the installation cost is high; and this method can only obtain ...
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IPC IPC(8): G01F23/292
Inventor 徐乐年王文华于滟文
Owner QINGDAO HAICHENG AUTOMATION EQUIP