US 12,442,781 B2
Bulk material foreign object detection method, device and X-ray foreign object detection equipment
Yuanyi Li, Shanghai (CN); and Jingjing Wang, Shanghai (CN)
Assigned to Shanghai Vixdetect Inspection Equipment Co., Ltd., Shanghai (CN)
Appl. No. 18/993,767
Filed by Shanghai Vixdetect Inspection Equipment Co., Ltd., Shanghai (CN)
PCT Filed Jul. 14, 2023, PCT No. PCT/CN2023/107396
§ 371(c)(1), (2) Date Jan. 13, 2025,
PCT Pub. No. WO2024/041263, PCT Pub. Date Feb. 29, 2024.
Claims priority of application No. 202222221652.0 (CN), filed on Aug. 23, 2022; and application No. 202211518267.0 (CN), filed on Nov. 30, 2022.
Prior Publication US 2025/0264421 A1, Aug. 21, 2025
Int. Cl. G01N 23/18 (2018.01); B08B 1/30 (2024.01); B08B 5/02 (2006.01); B08B 13/00 (2006.01); G01N 23/04 (2018.01); G01N 23/083 (2018.01); G06T 7/00 (2017.01); G06T 7/60 (2017.01); G06T 7/70 (2017.01); G06V 10/34 (2022.01)
CPC G01N 23/18 (2013.01) [B08B 1/30 (2024.01); B08B 5/023 (2013.01); B08B 13/00 (2013.01); G01N 23/04 (2013.01); G01N 23/083 (2013.01); G06T 7/0004 (2013.01); G06T 7/60 (2013.01); G06T 7/70 (2017.01); G06V 10/34 (2022.01); G01N 2223/401 (2013.01); G01N 2223/652 (2013.01); G06T 2207/10116 (2013.01); G06T 2207/30108 (2013.01); G06T 2207/30242 (2013.01); G06V 2201/05 (2022.01); G06V 2201/07 (2022.01)] 20 Claims
OG exemplary drawing
 
1. A bulk material foreign object detection method, characterized by
being applicable to an X-ray foreign object detection equipment provided with a flap removal device and a blowing removal device, and comprising:
acquiring an X-ray image of bulk material under inspection via the X-ray foreign object detection equipment;
analyzing the X-ray image to determine positions and a quantity of foreign objects in the bulk material;
determining whether the quantity of foreign objects identified exceeds a preset quantity threshold;
removing the foreign objects from the bulk material via the flap removal device when the quantity of the foreign objects exceeds the preset quantity threshold;
removing the foreign objects from the bulk material via one or more corresponding nozzles of the blowing removal device according to the positions of the foreign objects when the quantity of the foreign objects does not exceed the preset quantity threshold.