US 12,140,413 B2
Cell winding calibration method, apparatus, and device, and cell winding system
Xiaowei Zhang, Ningde (CN); Zhiwen Wang, Ningde (CN); Wei Zhang, Ningde (CN); Yuqian Wen, Ningde (CN); Minghao Tang, Ningde (CN); and Shengwu Zhang, Ningde (CN)
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde (CN)
Filed on Mar. 28, 2024, as Appl. No. 18/620,924.
Application 18/620,924 is a continuation of application No. PCT/CN2022/124043, filed on Oct. 9, 2022.
Claims priority of application No. 202111197958.0 (CN), filed on Oct. 14, 2021.
Prior Publication US 2024/0240935 A1, Jul. 18, 2024
Int. Cl. G01B 11/14 (2006.01); H01M 10/04 (2006.01)
CPC G01B 11/14 (2013.01) [H01M 10/0409 (2013.01); H01M 10/0431 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A cell winding calibration method, comprising:
obtaining a first reference distance between a first reference line and a second reference line, wherein the first reference line and the second reference line are parallel identification lines formed on a winding substrate, and the first reference distance remains unchanged in a cell winding process;
obtaining a reference number of pixels comprised in the first reference distance;
determining, based on the first reference distance and the reference number of pixels comprised in the first reference distance, an actual distance corresponding to a single pixel;
obtaining an actual number of pixels comprised in a distance between an edge of the winding substrate and the first reference line or the second reference line;
determining real-time position information of the edge of the winding substrate based on the actual number of pixels comprised in the distance between the edge of the winding substrate and the first reference line or the second reference line and the actual distance corresponding to a single pixel; and
calibrating the winding substrate based on the real-time position information of the edge of the winding substrate.