IP Library Granted Patent US 9,863,852
Granted Patent B2
US 9,863,852 · App. 14/060,361 · Granted Jan 9, 2018

Failure prediction in a rotating device

Inventors: Ravishanker Krishnamoorthy (Singapore, SG); Foo Leng Leong (Singapore, SG); Yayue Zhang (Singapore, SG); Edy Susanto (Singapore, SG)
Assignee: Marvell World Trade Ltd.
G01M99/00F04D27/001H02H7/085H02H7/0844
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Quick Facts
Patent No.
US 9,863,852
App. No.
14/060,361
Granted
Jan 9, 2018
Kind
B2
Abstract

Some of the embodiments provide a method comprising: during an operation phase, operating a rotating device at a first speed; during the operation phase, monitoring a first current consumed by the rotating device to operate at the first speed; comparing the first current to a second current measured during a calibration phase while rotating the device at a second speed, wherein the first speed is substantially equal to the second speed; and based on comparing the first current and the second current, predicting a possible failure of the rotating device.

Claims (32)

1. A method comprising:

during an operation phase, operating a rotating device at a first speed;

during the operation phase, monitoring a first current consumed by the rotating device to operate at the first speed, wherein during a calibration phase, the rotating device is operated at a second speed and a third speed, wherein while the rotating device is operated at the second speed during the calibration phase, a second current is measured to be consumed by the rotating device, and wherein while the rotating device is operated at the third speed during the calibration phase, a third current is measured to be consumed by the rotating device;

determining that the first speed is substantially equal to the second speed;

in response to determining that the first speed is substantially equal to the second speed, comparing the first current to the second current; and

based on comparing the first current and the second current, predicting a possible failure of the rotating device.

2. The method of claim 1 , wherein predicting the possible failure of the rotating device further comprises:

in response to the first current being higher than the second current by a threshold percentage, predicting the possible failure of the rotating device.

3. The method of claim 1 , wherein monitoring the first current consumed by the rotating device to operate at the first speed further comprises:

during the operation phase, monitoring the first current at periodic intervals.

4. The method of claim 1 , wherein monitoring the first current consumed by the rotating device to operate at the first speed further comprises:

during the operation phase, monitoring the first current during a start up of the rotating device.

5. The method of claim 1 , wherein the possible failure of the rotating device is due to a fault in a mechanical arrangement used to rotate the rotating device.

6. The method of claim 1 , wherein the possible failure of the rotating device is due to accumulation of dust or other debris in a path of an air flow that is generated based on the rotation of the rotating device.

7. A system comprising:

a rotating device;

a speed control module configured to, during an operation phase, control the rotating device such that the rotating device operates at a first speed; and

a failure prediction module configured to

during the operation phase, monitor a first current consumed by the rotating device to operate at the first speed,

during a calibration phase, monitor (i) a second current consumed by the rotating device to operate at a second speed and (ii) a third current consumed by the rotating device to operate at a third speed,

determine that the first speed is substantially equal to the second speed,

in response to determining that the first speed is substantially equal to the second speed, compare the first current and the second current, and

based on comparing the first current and the second current, predict a possible failure of the rotating device.

8. The system of claim 7 , wherein the failure prediction module is further configured to:

in response to the first current being higher than the second current by a threshold percentage, predict the possible failure of the rotating device.

9. The system of claim 7 , wherein the failure prediction module is further configured to:

during the operation phase, monitor the first current at periodic intervals.

10. The system of claim 7 , wherein the failure prediction module is further configured to:

during the operation phase, monitor the first current during a start up of the rotating device.

11. The system of claim 7 , wherein the possible failure of the rotating device is due to a fault in a mechanical arrangement used to rotate the rotating device.

12. The system of claim 7 , wherein the possible failure of the rotating device is due to accumulation of dust or other debris in a path of an air flow that is generated based on the rotation of the rotating device.

13. The system of claim 7 , wherein the rotating device is a fan.

Assignments (7)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 16, 2020
From: CAVIUM INTERNATIONAL
To: MARVELL ASIA PTE, LTD.
Reel/Frame 053475/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 20, 2020
From: MARVELL INTERNATIONAL LTD.
To: CAVIUM INTERNATIONAL
Reel/Frame 052918/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 29, 2020
From: MARVELL WORLD TRADE LTD.
To: MARVELL INTERNATIONAL LTD.
Reel/Frame 051778/0537 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 5, 2015
From: KRISHNAMOORTHY, RAVISHANKER; LEONG, FOO LENG; ZHANG, YAYUE; SUSANTO, EDY
To: MARVELL ASIA PTE, LTD.
Reel/Frame 036973/0672 →
LICENSE Recorded Nov 5, 2015
From: MARVELL WORLD TRADE LTD.
To: MARVELL INTERNATIONAL LTD.
Reel/Frame 036973/0761 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 5, 2015
From: MARVELL ASIA PTE, LTD.
To: MARVELL INTERNATIONAL LTD.
Reel/Frame 036973/0713 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 5, 2015
From: MARVELL INTERNATIONAL LTD.
To: MARVELL WORLD TRADE LTD.
Reel/Frame 036973/0744 →
Continuity (2)
Provisional Application 61717866 · Oct 24, 2012
Related Publication 20140111218A1 · Apr 24, 2014