Solar cell area measuring instrument and measuring system thereof

Abstract

The invention discloses a solar cell area measuring instrument and a measuring system thereof, wherein the solar cell area measuring instrument and the measuring system thereof belong to the field ofphotovoltaic testing. The solar cell area measuring instrument comprises an outer cover, a camera and a light source, wherein one end of the outer cover is provided with a measuring window; and the camera and the light source are arranged in the outer cover. According to the solar cell area measuring instrument and the measuring system, the image of the photovoltaic assembly is obtained through anoptical imaging system; then image processing is performed through image processing technology, and the area of the solar cell is obtained, thereby realizing simple measuring method and low measuringresult error, ensuring high measurement consistency, eliminating a subjective error caused by different measuring personnel, and improving objectivity of a testing result. Furthermore the camera is arranged in the outer cover, and an imaging condition of the camera is ensured through the light source, thereby preventing influence of external illumination change to camera imaging, improving imagequality, and further ensuring high accuracy and high consistency of a measuring result.

Description

technical field [0001] The invention relates to the field of photovoltaic detection, in particular to a solar cell sheet area measuring instrument and a measuring system. Background technique [0002] Photovoltaic modules (also called solar panels) are the core part of the solar power generation system and the most important part of the solar power generation system. Photovoltaic modules are composed of solar cells, tempered glass, EVA, TPT, interconnection bars, bus bars, backplanes and aluminum alloy frames. [0003] The area of ​​solar cells in photovoltaic modules has an important impact on the performance of photovoltaic modules. Accurate measurement of the area of ​​solar cells is a prerequisite for accurately evaluating the power generation and efficiency of photovoltaic modules. In the prior art, traditional length measuring tools are used to measure the length of the solar battery sheet, and then the area is calculated according to the measured length. However, fo...

AI Technical Summary

Problems solved by technology

However, for the solar cell of the finished photovoltaic module, because the outer layer is wrapped with tempered glass, for the traditional area test method, there will inevitably be errors in the measurement results, and it is difficult to ensure the consistency of the measurement between different testers

Moreover, the solar cells of some types of photovoltaic modules are not standard rectangles, and there are chamfers on their edges, such as figure 1 As shown, it further increases the difficulty and error of traditional manual measurement

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