Instrument reading method and device applied to pointer type pressure gauge
A technology of instrument reading and pressure gauge, applied in the field of pointer pressure gauge reading, can solve problems such as deviation, and achieve the effect of improving accuracy, high recognizability and high training precision
Pending Publication Date: 2022-07-15
河南中原动力智能制造有限公司
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[0008] There are many steps in the reading method of the prior art, and there will be many interference points when machine learning is used for scale line detection and pointer detection. The readings of the
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[0051] The technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0052] like figure 1 As shown, an embodiment of the present invention provides a meter reading method applied to a pointer pressure gauge, comprising the following steps:
[0053] Obtain the first pressure gauge image of the pointer pressure gauge photographed by the inspection robot, and obtain a second pressure gauge image containing only the pressure gauge after segmenting the first pressure gauge image; preferably, the first pressure gauge is The table image is input...
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The invention discloses an instrument reading method and device applied to a pointer type pressure gauge. The method comprises the following steps: obtaining a first pressure gauge image of a pointer type pressure gauge shot by an inspection robot, and carrying out segmentation processing on the first pressure gauge image to obtain a second pressure gauge image only containing the pressure gauge; correcting the second pressure gauge image into a third pressure gauge image at a preset angle through perspective transformation, wherein the preset angle is an angle shot by a camera facing a dial plate; and inputting the third pressure gauge image into a pressure gauge classification model based on a deep learning neural network to obtain the reading of the pointer type pressure gauge. According to the technical scheme, the accuracy of reading the pointer type pressure gauge by the inspection robot is improved.
Description
technical field [0001] The invention relates to the technical field of pointer pressure gauge reading, in particular to a meter reading method and device applied to a pointer pressure gauge. Background technique [0002] The invention is suitable for the field of inspection robots. There are many pointer pressure gauges distributed in every corner of the factory. These pressure gauges are used to record various indicators, and the readings displayed by the pressure gauges are very important for the safety and normal operation of the factory. . Pressure gauges will be installed in every corner of the factory, and manual counting of pressure gauges will bring certain labor costs to the factory. In addition, some corners are inconvenient for people to move around. Therefore, it is very necessary to use the inspection robot to realize the automatic reading of the pressure gauge. There are many pointer pressure gauges distributed in various factories. The pointer pressure gauge...
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IPC IPC(8): G06T7/00G06T7/194G06N3/08G06N3/04G06K9/62G06V10/764G06V10/44G06V10/82
CPCG06T7/0004G06T7/194G06N3/04G06N3/084G06T2207/20081G06T2207/20221G06F18/214G06F18/241
Inventor 万里红袁野吴国栋
Owner 河南中原动力智能制造有限公司