Pointer type instrument reading detection method based on target detection

A technology of target detection and detection method, which is applied in the direction of neural learning methods, instruments, character and pattern recognition, etc., and can solve problems such as visual errors, human errors, and low efficiency

Active Publication Date: 2020-11-17
杭州测质成科技有限公司
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Problems solved by technology

Traditional manual observation will have human error and visual error, and the efficiency is extremely low

Method used

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  • Pointer type instrument reading detection method based on target detection
  • Pointer type instrument reading detection method based on target detection
  • Pointer type instrument reading detection method based on target detection

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Embodiment Construction

[0061] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0062] A method for detecting a pointer-type instrument number based on target detection, comprising the following steps:

[0063] S1, target detection model training:

[0064] (1) Data acquisition: To establish a neural network training data set for the single-circle scale instrument, it is required to include different scale line styles, different dial digital styles, and different instrument pointer styles as complete as possible;

[0065] (2) Instrument panel area data calibration: manually calibrate the rectangular area border of the tangent instrument panel in the image by manual calibration software LabelImg;

[0066] (3) Network training of dial area detection model: Send the instrument picture and the label file obtained in (2) into the Faster RCNN network f...

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Abstract

The invention discloses a pointer type instrument reading detection method based on target detection, belongs to the technical field of pattern recognition and artificial intelligence, can recognize pointer type instrument reading with single-circle scales and uniform digital scales on the surface of an instrument, and comprises target detection model training and instrument reading recognition. In S1, training of a target detection model comprises (1) data acquisition; (2) dial area data calibration; (3) dial area detection model network training; (4) calibrating instrument digital area data;(5) dial plate digital area detection model network training; (6) preprocessing and classification of digital recognition data images; (7) training of a digital recognition model network; (8) preprocessing of a instrument pointer training picture and calibration of a pointer area; (9) training of an instrument pointer position detection model network; S2, recognition of meter reading. Reading speed and accuracy of the pointer type meter are improved, errors in the manual reading process are reduced, and reading is digitized so that data can be stored and predicted conveniently.

Description

technical field [0001] The invention belongs to the technical field of pattern recognition and artificial intelligence, and in particular relates to a pointer-type meter number detection method based on target detection. Background technique [0002] At this stage, non-electronic instruments are widely used in industrial production and daily use. According to the measurement principle, they can be divided into two categories: word wheel type and pointer type. The word wheel type instrument is often used in the occasions where the observed values ​​need to be accumulated, such as water consumption and gas consumption. Pointer instruments are often used in occasions where the observed value is an instantaneous value, such as pressure, speed, liquid level, resistance, etc. The pointer-type instrument includes at least one pointer and a dial corresponding to the pointer, and the reading is performed by manually judging the intersection of the pointer and the dial corresponding ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06N3/08
CPCG06N3/08G06V20/20G06V2201/02
Inventor 郑会龙
Owner 杭州测质成科技有限公司
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