US 11,954,842 B2
Powder leakage monitoring device and powder leakage monitoring method
Yudong Liu, Jiangsu (CN); Lei Wang, Jiangsu (CN); Kai Shi, Jiangsu (CN); Yong Xia, Jiangsu (CN); Xudong Si, Jiangsu (CN); Dongfang Li, Jiangsu (CN); and Xuedong Liang, Jiangsu (CN)
Assigned to HUANENG NANJING JINLING POWER GENERATION CO., LTD., Nanjing (CN)
Filed by Huaneng Nanjing Jinling Power Generation Co., Ltd., Jiangsu (CN)
Filed on Oct. 31, 2022, as Appl. No. 17/978,190.
Application 17/978,190 is a continuation of application No. PCT/CN2022/081331, filed on Mar. 17, 2022.
Claims priority of application No. 202111035753.2 (CN), filed on Sep. 6, 2021.
Prior Publication US 2023/0069945 A1, Mar. 9, 2023
Int. Cl. G06T 7/00 (2017.01); G06N 3/02 (2006.01); G06T 3/40 (2006.01); G06T 7/50 (2017.01); G06T 7/557 (2017.01); G06T 7/571 (2017.01); G06T 7/60 (2017.01); G06T 7/70 (2017.01); G06T 7/80 (2017.01); G06V 10/82 (2022.01); G06V 30/18 (2022.01); H04N 23/50 (2023.01); H04N 23/695 (2023.01)
CPC G06T 7/0004 (2013.01) [G06N 3/02 (2013.01); G06T 3/40 (2013.01); G06T 7/50 (2017.01); G06T 7/557 (2017.01); G06T 7/571 (2017.01); G06T 7/60 (2013.01); G06T 7/70 (2017.01); G06T 7/80 (2017.01); G06V 10/82 (2022.01); G06V 30/18124 (2022.01); H04N 23/50 (2023.01); H04N 23/695 (2023.01); G06T 2207/10052 (2013.01); G06T 2207/10148 (2013.01); G06T 2207/20081 (2013.01); G06T 2207/20084 (2013.01); G06T 2207/30108 (2013.01); G06T 2207/30232 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A powder leakage monitoring device, characterized by comprising:
light field camera, used to record original light field image of monitored area;
3D PTZ (3-Dimensional Pan/Tilt/Zoom), arranged under the light field camera, is used to rotate in a set direction to adjust a shooting angle of the light field camera, so that the light field camera is aligned with the monitored area;
computer, respectively connected to the light field camera and the 3D PTZ, is used to generate a refocused image corresponding to the original light field image, and determine spatial coordinates of pneumatic conveying dust leakage point in the monitored area and the hazard range of dust leakage, basing on the refocused image and the shooting angle.