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Meter reading method and device based on image recognition

An image recognition and image technology, applied in image enhancement, image analysis, image data processing, etc., can solve the problems of poor versatility and implementability of remote automatic meter reading methods

Inactive Publication Date: 2019-09-20
CHINA MOBILE M2M +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above existing remote automatic meter reading methods based on image processing and recognition are either only applicable to electric energy meters of predictive models, or only applicable to electric energy meters whose background color of the last reading number is red, or only applicable to electric energy meters whose reading area is rectangular The remote automatic meter reading method has certain limitations, and has high requirements for the image quality of the collected electric energy meter. Therefore, the remote automatic meter reading method has poor versatility and implementability.

Method used

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  • Meter reading method and device based on image recognition
  • Meter reading method and device based on image recognition
  • Meter reading method and device based on image recognition

Examples

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Embodiment 1

[0062] figure 1 A schematic diagram of the implementation flow of a meter reading method based on image recognition provided by the embodiment of the present invention, such as figure 1 As shown, in the embodiment of the present invention, the steps of the meter reading method based on image recognition are as follows:

[0063] S101, collecting the dial image of the electric energy meter;

[0064] It should be noted that according to the meter reading method of the electric energy meter, the electric energy meter can be divided into an automatic meter reading electric energy meter and a manual meter reading electric energy meter. For automatic meter reading energy meters, such as IC card prepaid meters, manual meter reading is not required, and data is transmitted through the IC card to realize the readback of data information such as total power, remaining power, accumulated power purchases in the meter, and total power purchase times. As for the manual meter reading electr...

Embodiment 2

[0119] Based on the same inventive concept as the first embodiment, the embodiment of the present invention provides a meter reading device based on image recognition, such as Figure 5 As shown, the meter reading device based on image recognition includes:

[0120] Acquisition unit 50, used for collecting the dial image of electric energy meter;

[0121] The conversion unit 51 is used to perform homosexual conversion on the dial image to obtain a homosexual image, and the homosexual image is a single-channel image with the same characteristics of white reading numbers and dark background;

[0122] A processing unit 52, configured to determine a reading area image from the isotropic image;

[0123] An acquisition unit 53, configured to obtain a character area image according to the reading area image;

[0124] The recognition unit 54 is configured to recognize each character in the character area image to obtain reading information of the electric energy meter.

[0125] Opt...

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Abstract

The embodiment of the invention discloses a meter reading method based on image recognition. The method comprises the following steps: acquiring a meter image of an electric energy meter; carrying out homogeneity conversion on the meter image to obtain a homogeneity image which is a single-channel image with the same characteristics of white reading numbers and dark color backgrounds; determining a reading area image from the homogeneity image; obtaining a character area image according to the reading area image; and identifying each character in the character area image to obtain reading information of the electric energy meter.

Description

technical field [0001] The invention relates to meter reading technology in the field of remote meter reading, in particular to an image recognition-based meter reading method and device. Background technique [0002] At present, IC (Integrated Circuit, integrated circuit) card prepaid meter reading system and intelligent network-based metering and meter reading system have been widely used and promoted in cities and towns. However, there are still a large number of civilian electric energy meters that do not have automatic meter reading. Function, for this part of the electric energy meter of manual meter reading, the meter reading system based on image processing and recognition has been widely researched and applied. The meter reading system based on image processing and recognition collects the electric energy meter dial image, and then uses the image processing and recognition method to automatically identify the electric energy meter reading on the collected image, the...

Claims

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Application Information

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IPC IPC(8): G06K9/32G06K9/34G06T5/00G06T7/11G06T7/90
CPCG06T7/90G06T7/11G06V10/243G06V30/153G06T5/70
Inventor 曹颖君龚国成陈杰刘源
Owner CHINA MOBILE M2M
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