Multifunctional digital meter automatic reading method based on target detection algorithm

Abstract

The invention discloses a multifunctional digital meter automatic reading method based on a target detection algorithm, and the method comprises the following steps: S1, carrying out the lightweight improvement of a YOLOv4 network model, and obtaining a YOLOv4 lightweight network model; S2, collecting the multifunctional digital table picture, and performing position calibration and category calibration on numbers on the multifunctional digital table picture; and S3, training the YOLOv4 lightweight network model by using the multifunctional digital table picture calibrated in the step S2 and the calibration information of the multifunctional digital table picture to obtain a YOLOv4 lightweight digital detection model. The multifunctional digital meter automatic reading method based on thetarget detection algorithm is high in recognition speed, high in recognition accuracy and good in stability, and the problems that an existing digital meter automatic reading method is prone to beingaffected by external environment changes and image imaging quality and lacks stability and accuracy of digital recognition are solved.

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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