	US 12,283,037 B2
	Detection method for battery swap in battery swap station
Tao Liu, Hefei (CN); Shenyi Ding, Hefei (CN); Junhai Yang, Hefei (CN); and Jiyong Zou, Hefei (CN)
Assigned to NIO TECHNOLOGY (ANHUI) CO., LTD, Hefei (CN)
Filed by NIO TECHNOLOGY (ANHUI) CO., LTD, Hefei (CN)
Filed on Feb. 10, 2022, as Appl. No. 17/668,598.
Claims priority of application No. 202110402607.2 (CN), filed on Apr. 14, 2021.
Prior Publication US 2022/0335593 A1, Oct. 20, 2022
Int. Cl. G06T 7/00 (2017.01); G01B 11/22 (2006.01); G06T 1/00 (2006.01); G06T 5/20 (2006.01); G06T 5/50 (2006.01); G06T 7/11 (2017.01); G06T 7/50 (2017.01); H04N 23/695 (2023.01); H04N 23/80 (2023.01)

CPC G06T 7/0004 (2013.01) [G01B 11/22 (2013.01); G06T 1/0007 (2013.01); G06T 5/20 (2013.01); G06T 5/50 (2013.01); G06T 7/11 (2017.01); G06T 7/50 (2017.01); H04N 23/695 (2023.01); H04N 23/80 (2023.01); G06T 2207/20021 (2013.01); G06T 2207/20221 (2013.01); G06T 2207/30108 (2013.01)]

13 Claims

1. A detection method for battery swap in a battery swap station, wherein the battery swap station comprises a battery swap platform, a first image acquisition module mounted in the battery swap platform, a conveying mechanism, a second image acquisition module, and a battery compartment; and

the detection method for battery swap comprises the following steps:

obtaining a first image of a used battery by using the first image acquisition module after a vehicle with a battery to be swapped arrives at a first preset position;

determining, based on the first image, whether the used battery is in a first anomalous state, wherein the first anomalous state include a scratched state or dented state;

uploading the first image to the server if the used battery is in the first anomalous state;

obtaining a second image of the used battery by using the second image acquisition module when the used battery is detached and conveyed to a second preset position through the conveying mechanism;

determining, based on the second image, whether the used battery is in a second anomalous state by invoking a first preset model, wherein the second anomalous state is a state in which there is a foreign matter on a surface of the used battery; and

uploading the second image to the server if the used battery is in the second anomalous state,

wherein the first preset position is in the battery swap platform; and

the second preset position is in the battery compartment;

wherein the step of determining, based on the first image, whether the used battery is in a first anomalous state specifically comprises:

pre-processing the first image to obtain a target image; and

determining, based on the target image, whether the used battery is in the first anomalous state;

wherein the first image is a three-dimensional image; and

the step of pre-processing the first image to obtain a target image specifically comprises:

calculating all pieces of gradient information of the first image in a Z-axis direction;

determining whether each piece of gradient information is greater than preset gradient information;

if the gradient information is greater than the preset gradient information, reserving an image part corresponding to the gradient information, to obtain the target image; and/or

if the gradient information is less than or equal to the preset gradient information, filtering out an image part corresponding to the gradient information.