IP Library Granted Patent US 9,063,708
Granted Patent B2
US 9,063,708 · App. 13/327,782 · Granted Jun 23, 2015

Electronic device, storage medium and method for validating speed of a fan thereof

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Quick Facts
Patent No.
US 9,063,708
App. No.
13/327,782
Granted
Jun 23, 2015
Kind
B2
Abstract

In a method for validating speed of a fan of an electronic device, different speeds of the fan are set for validation. The method controls the fan to operate under each of the set speeds in turn, and controls a camera device to continuously capture images of the fan with a shutter speed of the camera device corresponding to the set speed. The images are transmitted to a comparison unit to be analyzed for sameness and clarity. The fan is determined to work abnormally if not all the images are sameness or if at least one image is unclear, and the fan is determined to work normally if all the images are sameness or clear. A validation report is generated to indicate whether the fan is normal or abnormal according to the determination.

Claims (37)

1. A computer-implemented method for validating speed of a fan of an electronic device, the electronic device electronically connected to a camera device, the method comprising:

setting a plurality of speeds of the fan for validation;

controlling the fan to operate under each of the set speeds in turn, and controlling the camera device to continuously capture multiple images of the fan using a shutter speed of the camera device corresponding to the set speed;

reading the images of the fan from the camera device, and transmitting the images to a comparison unit of the electronic device for analysis;

determining that the fan works abnormally under the set speed if the images of the fan are not sameness or at least one image is unclear, or determining that the fan works normally under the set speed if all the images of the fan are sameness or clear; and

generating a first validation report indicating that the fan is abnormal if the fan works abnormally under one of the set speeds, or generating a second validation report indicating that the fan is normal if the fan works normally under all the set speeds.

2. The method as claimed in claim 1 , wherein the set speed of the fan is controlled by sending a pulse-width modulation duty cycle instruction to the fan through a basic input/output system or a basic management controller.

3. The method as claimed in claim 1 , wherein the shutter speed of the camera device is set to be 60/X if the set speed of the fan is equal to X revolutions per minute (RPM), and the shutter speed does not need to be reset if the set speed is equal to 0 RPM.

4. The method as claimed in claim 1 , wherein the comparison unit compares whether the images of the fan are sameness if the set speed is equal to 0 RPM, and analyzes whether the images of the fan are clear if the set speed is not equal to 0 RPM.

5. The method as claimed in claim 1 , wherein the comparison unit analyzes whether each of the images is clear by determining whether a predetermined percent of outline of the fan blade is extracted in the image, and compares whether the images are sameness by determining whether a predetermined percent of pixels of the images are sameness.

6. The method as claimed in claim 1 , wherein the fan is inside the electronic device, or outside of the electronic device.

7. A non-transitory storage medium storing a set of instructions, when executed by at least one processor of an electronic device, cause the at least one processor to perform a method for validating speed of a fan of the electronic device, the method comprising:

setting a plurality of speeds of the fan for validation;

controlling the fan to operate under each of the set speeds in turn, and controlling a camera device electronically connected to the electronic device to continuously capture multiple images of the fan using a shutter speed of the camera device corresponding to the set speed;

reading the images of the fan from the camera device, and transmitting the images to a comparison unit of the electronic device for analysis;

determining that the fan works abnormally under the set speed if the images of the fan are not sameness or at least one image is unclear, or determining that the fan works normally under the set speed if all the images of the fan are sameness or clear;

generating a first validation report indicating that the fan is abnormal if the fan works abnormally under one of the set speeds, or generating a second validation report indicating that the fan is normal if the fan works normally under all the set speeds.

8. The storage medium as claimed in claim 7 , wherein the set speed of the fan is controlled by sending a pulse-width modulation duty cycle instruction to the fan through a basic input/output system or a basic management controller.

9. The storage medium as claimed in claim 7 , wherein the shutter speed of the camera device is set to be 60/X if the set speed of the fan is equal to X revolutions per minute (RPM), and the shutter speed does not need to be reset if the set speed is equal to 0 RPM.

10. The storage medium as claimed in claim 7 , wherein the comparison unit compares whether the images of the fan are sameness if the set speed is equal to 0 RPM, and analyzes whether the images of the fan are clear if the set speed is not equal to 0 RPM.

11. The storage medium as claimed in claim 10 , wherein the comparison unit analyzes whether each of the images is clear by determining whether a predetermined percent of outline of a fan blade is extracted in the image, and compares whether the multiple images are sameness by determining whether a predetermined percent of pixels of the images are sameness.

12. The storage medium as claimed in claim 7 , wherein the fan is inside the electronic device, or outside the electronic device.

13. An electronic device, comprising:

a fan;

a storage system;

at least one processor; and

one or more programs that are stored in the storage system and executed by the at least one processor, the one or more programs comprising:

a setting module operable to set a plurality of speeds of the fan for validation;

a controlling module operable to control the fan to operate under each of the set speeds in turn, and control a camera device electronically connected to the electronic device to continuously capture multiple images of the fan using a shutter speed of the camera device corresponding to the set speed;

a reading module operable to read the images of the fan from the camera device, and transmit the images to a comparison unit of the electronic device for analysis;

a determination module operable to determine that the fan works abnormally under the set speed if the images of the fan are not sameness or at least one image is unclear, or determine that the fan works normally under the set speed if all the images of the fan are sameness or clear,

a generation module operable to generate a first validation report indicating that the fan is abnormal if the fan works abnormally under one of the set speeds, or generate a second validation report indicating that the fan is normal if the fan works normally under all the set speeds.

14. The electronic device as claimed in claim 13 , wherein the control module controls the set speed of the fan by sending a pulse-width modulation duty cycle instruction to the fan through a basic input/output system or a basic management controller.

15. The electronic device as claimed in claim 13 , wherein the shutter speed of the camera device is set to be 60/X if the set speed of the fan is equal to X revolutions per minute (RPM), and the shutter speed does not need to be reset if the set speed is equal to 0 RPM.

16. The electronic device as claimed in claim 13 , wherein the comparison unit compares whether the images of the fan are sameness if the set speed is equal to 0 RPM, and analyzes whether the images of are clear if the set speed is not equal to 0 RPM.

17. The electronic device as claimed in claim 16 , wherein the comparison unit analyzes whether each of the images is clear by determining whether a predetermined percent of outline of a fan blade is extracted in the image, and compares whether the images are sameness by determining whether a predetermined percent of pixels of the images are sameness.

18. The electronic device as claimed in claim 13 , wherein the fan is inside the electronic device, or outside the electronic device.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 5, 2018
From: HONG FU JIN PRECISION INDUSTRY (SHENZHEN) CO., LTD.; HON HAI PRECISION INDUSTRY CO., LTD.
To: HONGFUJIN PRECISION ELECTRONICS(TIANJIN)CO.,LTD.
Reel/Frame 045501/0324 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 16, 2011
From: WANG, GUANG-JIAN; LIU, XIAO-MEI; ZHAO, JIN-RONG; FU, XIAO-JUN
To: HONG FU JIN PRECISION INDUSTRY (SHENZHEN) CO., LTD.; HON HAI PRECISION INDUSTRY CO., LTD.
Reel/Frame 027401/0408 →