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Detection method for Lamination lithium ion battery

A technology of lithium-ion batteries and detection methods, applied in image data processing, instruments, calculations, etc., to achieve the effect of improving time complexity and accuracy, and improving efficiency and accuracy

Active Publication Date: 2014-10-08
WUXI UNICOMP TECH
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Problems solved by technology

At present, the contradiction between the robustness, accuracy, and real-time performance of most algorithms is still prominent.

Method used

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  • Detection method for Lamination lithium ion battery
  • Detection method for Lamination lithium ion battery
  • Detection method for Lamination lithium ion battery

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Embodiment Construction

[0034] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0035] Such as Image 6 as shown,

[0036] A detection method for a laminated lithium-ion battery, comprising the following steps:

[0037] Step 101, by counting the variance in the horizontal direction of each line of the stacked battery grayscale image, performing threshold processing on the statistical results to determine the characteristic area for measurement;

[0038] Step 102, perform corner detection on the above-mentioned determined feature region image, calculate the similarity of each point of the image, and calculate the direction change intensity, set a threshold to filter the image corner position according to the direction change intensity, that is,...

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Abstract

The invention discloses a detection method for a lamination lithium ion battery. The method includes the following steps: carrying out statistics of a variance of each line of a lamination battery gray level image in the horizontal direction and carrying out threshold processing on a statistical result so as to determine a calculated characteristic area; carrying out angular point detection on an image of the determined characteristic area and calculating the similarity of each point of the image and calculating a direction change intensity and according to the direction change intensity, setting a threshold to filter image angular point positions, that is the angular point detection; through statistics of a maximum occurrence probability of the angular points in the horizontal direction, classifying the angular points; and after a position of a maximum occurrence probability of anode and cathode angular points is determined, using the maximum position as a reference point to screen anode and cathode piece angular points and then carrying out three-cubic fitting after the screening and carrying out compensation processing on a position at which opening is larger during the fitting. The detection efficiency and precision of the lamination lithium ion battery are improved.

Description

technical field [0001] The invention relates to the field of lithium battery detection, in particular to a detection method for laminated lithium ion batteries. Background technique [0002] The global lithium-ion battery industry for consumer electronics was pioneered by Japan. After entering 2005, China's industry rose, and China, Japan and South Korea emerged as a three-point world. In 2011, the "Energy Conservation and New Energy Vehicle Development Plan" issued by the State Council mentioned that in the next 10 years, the state will invest 100 billion yuan to support the development of the new energy industry, and lithium power batteries will develop rapidly in the next few years. According to the research report on the development of China's battery industry, driven by the enthusiasm for new energy batteries, the cumulative output of lithium-ion batteries nationwide in 2011 was 2.955 billion, a year-on-year increase of 18.14%. [0003] However, the repeated fires and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
Inventor 刘骏杨雁清徐华安
Owner WUXI UNICOMP TECH
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