Automatic Reading Method of Multifunctional Digital Meter Based on Target Detection Algorithm

Abstract

The invention discloses an automatic reading method of a multifunctional digital meter based on a target detection algorithm, comprising the following steps: Step S1, performing lightweight improvement on the YOLOv4 network model to obtain a YOLOv4 lightweight network model; Collect pictures and perform position calibration and category calibration on the numbers on the multi-functional digital table picture; step S3, use the multi-functional digital table picture after step S2 calibration and its calibration information to train the YOLOv4 lightweight network model to obtain YOLOv4 Lightweight digital detection model. The multifunctional digital meter automatic reading method based on the target detection algorithm has fast recognition speed, high recognition accuracy, and good stability, and solves the problem that the existing digital meter automatic reading method is easily affected by changes in the external environment and image quality. Lack of stability and accuracy of digital recognition.

Description

technical field [0001] The invention relates to the technical field of multifunctional digital meter reading, in particular to an automatic reading method for a multifunctional digital meter based on a target detection algorithm. Background technique [0002] Multi-function digital meters are widely used in power distribution rooms due to their intuitive display, multi-function and high cost performance. Multi-function digital meters can display current and voltage in different units through simple settings. Multi-function digital meters generally use Displayed in three rows and four columns, three readings can be displayed at the same time, each reading is composed of four numbers and decimal points, and each number and decimal point are represented by red light-emitting diodes (such as figure 1 shown). In the daily inspection of the power distribution room, professional staff are required to watch and record the readings of the digital meter with human eyes. The inspectio...

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Problems solved by technology

[0004] In view of the problems raised by the background technology, the purpose of the present invention is to propose a multifunctional digital meter automatic reading method based on a target detection algorithm, which has fast recognition speed, high recognition accuracy and good stability, and solves the problem of the existing digital meter automatic reading method. It is easily affected by changes in the external environment and image quality, and lacks the stability and accuracy of digital recognition

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