Pipeline levelness measuring system and method based on image recognition
A level measurement and image recognition technology, applied in image enhancement, image analysis, image data processing, etc., can solve problems such as low precision, gas or water accumulation in instrument tubes, and distortion of measurement results of differential pressure transmitters. The effects of high measurement accuracy, quick operation, and reduced measurement time and workload
Pending Publication Date: 2020-03-24
CNNC FUJIAN FUQING NUCLEAR POWER
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If the slope does not meet the standard, there will be gas or water accumulation inside the instrument tube, and there will be an air seal or liquid seal, resulting in distortion or abnormal fluctuations in the measurement results of the differential pressure transmitter with a range of only a few KPa
[0009] At present, the measurement of the slope of the instrument tube can only be qualitatively measured by a spirit level or a spirit level, which has low precision and cannot meet the high-precision use requirements on site.
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[0045] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:
[0046] A pipeline levelness measurement system based on image recognition, including a high-definition camera system, an image recognition system, a verticality detection system, a magnetic damping automatic leveling detection system, and a threshold judgment system. The high-definition camera system is connected to the processor through the image recognition system, and the processor is also connected to the verticality detection system and the magnetic damping automatic leveling detection system. The data is corrected, and after the correction, the threshold judgment system inside the processor is used to make the most judgment.
[0047] The specific functions are as follows:
[0048]High-definition camera system: This system is composed of environmental photosensitive module, flashlight, focus adjustment system, high-definition lens, CMOS image s...
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The invention belongs to the technical field of nuclear power plant operation monitoring, and relates to a pipeline levelness measuring system and method based on image recognition. The pipeline levelness measuring system comprises a high-definition photographing system, an image recognition system, a perpendicularity detection system, a magnetic damping automatic leveling detection system and a threshold value judgment system, is mainly used for quickly judging whether the gradient of the instrument pipeline meets the requirements or not and is convenient for measuring the gradient of the instrument pipeline on site, and has the characteristics that 1) high-definition photographing and image recognition are realized; 2) the operation is fast, the measurement time and workload are greatlyreduced, 3) the automatic angle compensation is realized, the field zero calibration is not needed, and 4) the measurement precision is high.
Description
technical field [0001] The invention belongs to the technical field of nuclear power plant operation monitoring, and in particular relates to a system and method for measuring pipeline levelness based on image recognition. Background technique [0002] The slope of the instrument pipe is arranged in a complicated manner on site. Measurement by a spirit level requires a certain space above the instrument pipe for placing the level meter. However, the space above some instrument pipes is too small to meet the measurement requirements. [0003] The level meter is a rigid measuring body. When the slope of a small section in the middle of some instrument tubes does not meet the requirements, the level meter cannot accurately measure the slope value of this small section, causing errors in the measurement. [0004] At the same time, the horizontal accuracy of the level is mostly only 1°. For nuclear power systems, the minimum standard is a slope difference of 2%, which is about an...
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IPC IPC(8): G06T7/00G06T7/13G06T7/70
CPCG06T7/0006G06T7/13G06T7/70G06T2207/10152G06T2207/10148
Inventor 李晓振商海龙万舒王向阳梁鑫郑媛媛尤兵刘仁朋王征勇
Owner CNNC FUJIAN FUQING NUCLEAR POWER