Visual identification system of direct-reading water meter and identification method thereof

A visual recognition and direct reading technology, applied in the field of water meter remote transmission system, can solve the problems of insufficient memory of single chip microcomputer, reduce the cost of water meter meter reading system, etc., to save the work of sample extraction, strong anti-interference ability, and meet the identification requirements. Effect

Inactive Publication Date: 2017-10-13
UNIV OF JINAN
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Problems solved by technology

[0016] In view of the above deficiencies, the present invention provides a visual recognition system and a recognition method for a direct-reading water meter, which can effect

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  • Visual identification system of direct-reading water meter and identification method thereof
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  • Visual identification system of direct-reading water meter and identification method thereof

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Embodiment Construction

[0051] In order to clearly illustrate the technical characteristics of the present solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted herein to avoid unnecessarily limitin...

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Abstract

The invention discloses a visual recognition system of a direct-reading water meter and a recognition method thereof. The recognition system sets the corresponding numerical value 0 on ten arc segments indicating 0 to 9 on the circumferential surface of each character wheel of the direct-reading water meter. The two-dimensional code identification of ~9, the identification method includes the following steps: 1) taking the image information of the direct-reading water meter dial; 2) removing the noise in the image by using median filtering and Gaussian filtering on the dial image; 3) passing the two-dimensional code The positioning information of the logo is used to calibrate the image angle; 4) the threshold value of the dial image is calculated, and binarization is performed, and the gray value greater than the threshold is set to the maximum gray value 1, and the gray value smaller than the threshold is set to 0; 5) Recognize the value of each character wheel in the dial image separately, and combine the recognized values ​​of each character wheel into the water meter reading. The invention obtains the water volume reading of the direct-reading water meter by identifying the two-dimensional code, effectively solves the problem of insufficient memory of the single-chip microcomputer, and reduces the cost of the water meter visual system.

Description

technical field [0001] The invention relates to a water meter remote transmission system, in particular to a visual recognition system and a recognition method for a direct-reading water meter. Background technique [0002] my country's remote water meters can be roughly divided into two categories: pulse type and direct-reading type according to the collection method of data terminals. The development of the two types of water meters is gradually becoming mature, each occupying a part of the market share, and has formed certain applications in the industry. Norms have also been widely accepted. Its principles and characteristics are summarized as follows: [0003] 1 pulse remote water meter [0004] The pulse-type remote water meter reading system has been developed for more than 20 years in our country, and the development and application of technology have reached a mature stage. The disadvantage of this type of water meter is that when the power supply is cut off, the ...

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Application Information

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IPC IPC(8): G06K7/14
CPCG06K7/1417G06K7/1443G06K7/1456G06K7/1478
Inventor 李聪孟凡民张中伟李春梅张瑞芳
Owner UNIV OF JINAN
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