A method for automatic statistics of fragmentation rate

Abstract

The invention provides a method achieving automated statistics of a fragment rate. According to the method, bar codes on components are sequentially scanned through a first code scanning device, the number of battery pieces in the scanned components is overlaid through a master-control centre automatically, and the sum of the battery pieces is finally obtained. In addition, the number of fragments in each component is stored through the master-control centre, when statistics of the fragment rate at a later stage is needed, numbers of the fragments of all components are added through the master-control centre automatically to obtain the sum of the fragments, and then the fragment rate is finally obtained through the sum of the fragments compared to the number of the battery pieces. Therefore, the automated statistics of the fragment rate is achieved, steps of manual automated statistics of the fragment rate are simplified, and work efficiency is improved.

Description

technical field [0001] The invention relates to the field of solar photovoltaic cells, in particular to a method for realizing automatic statistics of fragmentation rates. Background technique [0002] Solar photovoltaic modules have a total of five layers of structure from bottom to top, which are glass, lower layer EVA (ethylene-vinyl acetate copolymer), battery sheet, upper layer EVA and back sheet. The single battery sheet is welded into a battery string by a welding machine, and then the glass, the lower layer of EVA, and the battery string are laid in sequence by the laying machine, and finally the upper layer of EVA, the back plate and the serial number are laid manually. [0003] When the welding machine welds the battery string, or when the laying machine lays the glass, the lower layer of EVA, and the battery string, it often leads to problems such as fragmentation, edge chipping, and corner chipping of the very brittle battery chips. [0004] When manually laying...

AI Technical Summary

Problems solved by technology

[0007] The fragmentation rate is the percentage of the total number of cell fragments in the total number of cells. When performing fragmentation rate statistics in the later stage, in addition to counting the total number of cells, the staff also needs to count the number of fragments on the quality tracking sheet on each module. The total number of fragments is calculated, and then the fragmentation rate is calculated. Obviously, this method of calculating the fragmentation rate in the later stage is cumbersome, which leads to a decrease in the work efficiency of the staff.

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