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Solar photovoltaic module hot spot identification method based on infrared and visible light images

A solar photovoltaic and identification method technology, which is applied in the field of solar photovoltaic module hot spot identification, can solve the problems of low detection accuracy of photovoltaic hot spot position, inability to analyze and obtain photovoltaic hot spot at the same time, etc.

Active Publication Date: 2021-07-06
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Claims
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AI Technical Summary

Problems solved by technology

However, in the existing technology, the intelligent acquisition of the position of the photovoltaic hot spot cannot analyze and obtain the cause of the photovoltaic hot spot at the same time, and the detection accuracy of the photovoltaic hot spot position is not high

Method used

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  • Solar photovoltaic module hot spot identification method based on infrared and visible light images
  • Solar photovoltaic module hot spot identification method based on infrared and visible light images
  • Solar photovoltaic module hot spot identification method based on infrared and visible light images

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Embodiment

[0037] A method for identifying hot spots of solar photovoltaic modules based on infrared and visible light images, such as figure 1 , 3 shown, including the following steps:

[0038] S1: Establish a photovoltaic panel infrared image dataset and a photovoltaic panel visible light image dataset.

[0039] In this embodiment, the infrared image and the visible light image of the same position of the photovoltaic panel to be identified are collected by the drone equipped with dual cameras, and the images in the infrared image data set of the photovoltaic panel and the visible light image data set of the photovoltaic panel are obtained, and An infrared image in the photovoltaic panel infrared image dataset corresponds to a photovoltaic panel visible light image in the photovoltaic panel visible light image dataset.

[0040] And mark the images in the two data sets, mark the four vertex coordinates of each hot spot in each image in the photovoltaic panel infrared image data set, o...

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Abstract

The invention relates to a solar photovoltaic module hot spot identification method based on infrared and visible light images. The method comprises the following steps: establishing a photovoltaic panel infrared image data set and a photovoltaic panel visible light image data set; constructing a hot spot detection model, and training the hot spot detection model by using the photovoltaic panel infrared image data set; constructing a hot spot cause analysis model, and training the hot spot cause analysis model by using the photovoltaic panel visible light image data set; and obtaining an infrared image and a visible light image of the same position of the photovoltaic panel to be identified, sending the infrared image into the hot spot detection model, obtaining hot spot positions and drawing the hot spot positions in the visible light image, analyzing an image in the hot spot positions of the visible light image by using the hot spot cause analysis model, and obtaining hot spot causes corresponding to the hot spot positions. Compared with the prior art, the method effectively obtains the hot spot position in the infrared image, analyzes the hot spot cause in the visible light image based on the hot spot position, and improves the recognition accuracy and recognition efficiency.

Description

technical field [0001] The invention relates to the field of hot spot identification of solar photovoltaic modules, in particular to a method for identifying hot spots of solar photovoltaic modules based on infrared and visible light images. Background technique [0002] As a sustainable clean energy, solar photovoltaic power generation has a great effect on the sustainable development of the environment and economy. Hot spots are a common phenomenon of solar photovoltaic panel failure. Due to the failure of the circuit structure of the photovoltaic panel, the solar photovoltaic panel will Local abnormal heating occurs during power generation, and infrared hot spots can be found by using an infrared imager. For small-scale photovoltaic panels, a portable infrared instrument can be used to observe and detect the location of hot spots. However, the use of portable infrared cameras for large-scale solar photovoltaic power plants cannot be quickly detected. Manual handheld infr...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/32G06K9/62G06N3/04G06N3/08
CPCG06N3/08G06V20/10G06V10/25G06N3/045G06F18/214G06F18/2411Y02E10/50
Inventor 王道累李超朱瑞韩清鹏袁斌霞康博孙嘉珺张天宇
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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