Pointer detection-based automatic dial instrument reading system and pointer detection-based automatic dial instrument reading identification method

A technology for automatic reading and identification methods, applied in measuring devices, radio wave measuring systems, signal transmission systems, etc., can solve problems such as complex and changeable lighting conditions, visual fatigue, and low accuracy, and achieve less dependence on known information, Prevents high-intensity reflections and reduces image effects

Active Publication Date: 2018-08-28
安徽炬视科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the recording of instrument data mainly depends on the human eye observation of the staff. The detection efficiency is low and the accuracy is not high. Especially for long-term continuous interpretation, it is easy to cause visual fatigue and lead to errors.
In addition, there are some occasions where human interpretation cannot be used.
However, the external lighting conditions of the substation are complex and changeable, and the instrument panel is tilted when it is fixedly installed, so the acquisition camera cannot perform convenient and accurate image acquisition on the instrument panel. Efficient and accurate instrument panel image acquisition operation has become the premise to ensure the safe and stable operation of the power system

Method used

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  • Pointer detection-based automatic dial instrument reading system and pointer detection-based automatic dial instrument reading identification method
  • Pointer detection-based automatic dial instrument reading system and pointer detection-based automatic dial instrument reading identification method

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specific Embodiment 1

[0038]The present invention is a pointer-type meter automatic reading device system based on pointer detection, which includes a meter device 1, on which a meter panel 2 structure is arranged, and a first adjustment mechanism 5 is fixedly installed on one side of the meter device 1; includes a first Power device 3, the output shaft of the first power device 3 is equipped with a first drive mechanism 4; includes a terminal control device 9 and a first support mechanism 8, and the terminal control device 9 is fixedly connected to one end of the first support mechanism 8; includes a camera The device 7 and the camera device 7 are fixedly connected to the other end of the first supporting mechanism 8 .

[0039] The telescopic power unit 14 is fixedly installed on the first support mechanism 8; the telescopic power unit 14 includes a telescopic link mechanism 15; The side is vertically fixedly connected; the other side of the push connecting plate mechanism 16 is fixedly equipped w...

specific Embodiment 2

[0045] GPS module 11: for locating the remote location where the instrument panel 2 is currently located.

[0046] The wireless transmission / reception module 12: transmits the data information to the remote central processing unit 13 through wireless transmission, and acquires a driving signal for regulating the first power device 3 from the remote central processing unit 13 .

[0047] Instrument image acquisition unit: used to acquire instrument images and input instrument images.

[0048] Instrument image preprocessing unit: used to estimate the background color of the instrument panel image, and use the color histogram distribution characteristics of the instrument panel to locate the instrument panel area as an effective recognition area; perform illumination balance on the effective identification area of ​​the instrument panel; Perform color space conversion to convert the image from the RGB color space to a grayscale image.

[0049] Pointer / scale line extraction unit: ...

specific Embodiment 3

[0051] The automatic reading recognition method of a pointer instrument based on pointer detection comprises the following steps:

[0052] Collect the instrument image, input the instrument image and preprocess it, and extract the effective recognition area of ​​the instrument panel.

[0053] Among them, the preprocessing of the input image is specifically: estimating the background color of the dashboard image, using the color histogram distribution characteristics of the dashboard to locate the dashboard area as an effective recognition area; illuminating the effective recognition area of ​​the dashboard Balance; convert the color space of the image, and convert the image from the RGB color space to a grayscale image; from the effective recognition area of ​​the instrument panel, use the multi-scale method to extract the pointer of the instrument panel according to the stroke characteristics of the effective identification area of ​​the instrument panel and scale lines; from...

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Abstract

The invention discloses a pointer detection-based automatic dial instrument reading system and a pointer detection-based automatic dial instrument reading identification method, which relate to the field of image monitoring and processing systems. In the invention, a first adjusting mechanism is fixedly mounted on one side of an instrument device; a first driving mechanism is mounted on the outputshaft of a first power device; a terminal control device is fixedly connected to one end of a first supporting mechanism; a camera device is fixedly connected to the other end of the first supportingmechanism; and the terminal control device is in real-time association with a remote central processor by the way of data information transmission. According to the invention, the instrument device is driven to be adjusted by the first power device, so that a dial can cooperate with the image acquisition angle of the camera device, and thereby the influence of a complex light environment on the image of the dial is decreased; by means of an AD (analogue-to-digital) converter and a wireless transmission / receiving module, corresponding dial image information is transmitted to the remote centralprocessor; and thereby high-efficiency and accurate dial image acquisition operation can be carried out under a complex state condition.

Description

technical field [0001] The invention relates to the field of image monitoring and processing systems, in particular to a pointer detection-based automatic reading device system for pointer meters and a recognition method. Background technique [0002] In power system substations, many devices are equipped with various instruments, such as barometers, thermometers, oil temperature gauges, etc., and most of them are still pointer instruments. At present, the recording of instrument data mainly depends on the human eye observation of the staff. The detection efficiency is low and the accuracy is not high. Especially for long-term continuous interpretation, it is easy to cause visual fatigue and lead to errors. In addition, there are some occasions where manual interpretation cannot be used. However, the external lighting conditions of the substation are complex and changeable, and the instrument panel is tilted when it is fixedly installed, so the acquisition camera cannot per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D9/42G05B19/042G01S19/14G08C17/02
CPCG05B19/0428G08C17/02G01D9/42G01S19/14G05B2219/2612
Inventor 谭守标黄益楼唐俊
Owner 安徽炬视科技有限公司
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