US 12,258,972 B2
Abnormality early-warning method and apparatus for fan, and device and medium
Hsinyu Pan, Beijing (CN)
Assigned to INSPUR (BEIJING) ELECTRONIC INFORMATION INDUSTRY CO., LTD., Beijing (CN)
Appl. No. 18/697,434
Filed by INSPUR (BEIJING) ELECTRONIC INFORMATION INDUSTRY CO., LTD., Beijing (CN)
PCT Filed Jun. 30, 2022, PCT No. PCT/CN2022/102732
§ 371(c)(1), (2) Date Mar. 29, 2024,
PCT Pub. No. WO2023/123958, PCT Pub. Date Jul. 6, 2023.
Claims priority of application No. 202111678579.3 (CN), filed on Dec. 31, 2021.
Prior Publication US 2024/0401598 A1, Dec. 5, 2024
Int. Cl. F04D 27/00 (2006.01); F04D 25/08 (2006.01)
CPC F04D 27/00 (2013.01) [F04D 25/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An abnormality early-warning method for a fan, comprising:
when a target fan is capable of normally dissipating heat, obtaining a target rotational speed, a target operating current, and a target ambient temperature of the target fan at a current moment;
when the target rotational speed is less than a minimum rotational speed of the target fan, providing first early-warning information as a prompt;
when the target rotational speed is greater than or equal to the minimum rotational speed of the target fan, predicting a rotational speed and an operating current of the target fan at a next moment based on a rotational speed change curve, a current change curve, the target rotational speed, the target operating current, and the target ambient temperature to obtain a predicted rotational speed and a predicted operating current; and
when the predicted rotational speed is less than a first preset threshold or the predicted operating current is greater than a second preset threshold, providing second early-warning information as a prompt, wherein the first preset threshold and the second preset threshold are numerical values set based on the Institute of Printed Circuits (IPC) standard.