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Pointer type instrument reading method and system

A pointer type and instrument reading technology, which is applied to instruments, character and pattern recognition, computer components, etc., can solve the problems of difficult pointer tilt processing and shorten image processing time, so as to shorten image processing time, improve portability and speed performance, and the effect of improving accuracy

Pending Publication Date: 2020-04-14
ANHUI TSINGLINK INFORMATION TECH
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Problems solved by technology

[0005] Based on the technical problems existing in the background technology, the present invention proposes a reading method and system for a pointer instrument, which improves the image processing efficiency, shortens the image processing time, and improves the defect that the pointer tilt is difficult to process in the Cartesian coordinate system

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  • Pointer type instrument reading method and system
  • Pointer type instrument reading method and system

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Embodiment Construction

[0045] In the following, the technical solution of the present invention will be described in detail through specific embodiments, and many specific details are set forth in the following description so as to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0046] refer to figure 1 and 2 As shown, the reading method of a pointer instrument proposed by the present invention includes steps S100 to S300:

[0047] S100: Acquire the image of the pointer instrument, and convert the Cartesian coordinate system where the image is located into the polar coordinate system to obtain the first image; as an embodiment, as Figure 4 As shown, it is a pointer instrument image, such as...

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Abstract

The invention discloses a pointer type instrument reading method and system The method comprises the steps: obtaining a pointer type instrument image, converting a Cartesian coordinate system where the image is located into a polar coordinate system, and obtaining a first image; extracting the horizontal edge of the first image, and searching the rotation angle of a pointer relative to a circle center according to the horizontal edge; and obtaining the pointer type instrument reading through conversion in the pointer angle-instrument reading relation table according to the rotation angle of the pointer relative to the circle center. Automation of instrument reading is achieved, the image processing efficiency is improved, the image processing time is shortened, and the defect that pointerinclination is difficult to process in the Cartesian coordinate system is overcome.

Description

technical field [0001] The invention relates to the technical field of meter data reading, in particular to a method and system for reading pointer meters. Background technique [0002] In daily life and production, meters are a common tool used to display various important parameters. In the field of industrial production, various meters are also widely used. General instruments include two types: pointer and digital. An analog meter uses a pointer and a scale to indicate a value. Digital meters display values ​​directly in numbers. In mass production activities, the reading of instrument readings is an indispensable link; although the development of digital instrument technology is very fast, pointer instruments are simple in structure, easy to use, and cheap in industrial production. holds a very important position. [0003] The reading of the existing pointer instruments is basically done manually, which not only causes waste of labor, but also causes visual fatigue....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/46G06K9/32
CPCG06V10/242G06V10/44G06V2201/02
Inventor 何佳张卡尼秀明
Owner ANHUI TSINGLINK INFORMATION TECH
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