# US 2014/0154049 A1 · Verification system and method for rotation speed value of fan

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- Number: US 2014/0154049 A1
- Document ID: US20140154049A1
- Status: Published application
- Kind: A1
- Application number: 13/853,063
- Filed: 2013-03-29
- Published: 2014-06-05
- Earliest claimed: 2012-12-05
- Assignees: Hon Hai Precision Industry Co., Ltd.
- Applicants: Hon Hai Precision Industry Co., Ltd.
- Inventors: Chih-Ta HUANG; Yao-Ting CHANG; Chao-Ke WEI
- Web page: https://patentgrep.com/patent/US20140154049A1

## CPC

- F04D 27/004: {by varying driving speed}
- H05K 7/20209: {Thermal management, e.g. fan control}
- Y02B 30/70: Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
- F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02)
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS

## Abstract

A verification method for a rotation speed value of a fan includes steps of receiving a predictive rotation speed value of the fan, an input environmental temperature value and a plurality of temperature values of components, sending the received environmental temperature value and a plurality of temperature values of components to the control unit to control the fan to rotate on the condition of the input temperature values; acquiring the actual rotation speed value of the fan on the condition of the input temperature values; detecting whether the actual rotation speed value of the fan is consistent with the predictive rotation speed value of the fan; and outputting information of showing that the actual rotation speed value of the fan does not match the predictive rotation speed value of the fan if not.

## Claims

### Claim 1

A verification system for a rotation speed value of a fan in a baseboard management controller (BMC), wherein the BMC comprises a control unit and an output unit, the control unit is configured to control a fan to rotate according to a pre-design rotation speed value, the output unit is configured to output an actual rotation speed value of the fan, the verification system comprising:
an input module configured to receive a predictive rotation speed value of the fan, an input environmental temperature value and a plurality of temperature values of components, send the received environmental temperature value and a plurality of temperature values of components to the control unit to control the fan to rotate on a condition of the input temperature values;
an acquiring module configured to acquire the actual rotation speed value of the fan on the condition of the input temperature values;
a detecting module configured to detect whether the actual rotation speed value of the fan is consistent with the predictive rotation speed value of the fan; and
an output module configured to output information of showing that the actual rotation speed value of the fan does not match the predictive rotation speed value of the fan when the actual rotation speed value of the fan is not consistent with the predictive rotation speed value of the fan;
wherein these modules of the verification system is to executed by at least one processor.

### Claim 2 (depends on 1)

The verification system as described in claim 1, wherein the output module is further configured to output information of showing that the actual rotation speed value of the fan matches the predictive rotation speed value of the fan when the actual rotation speed value of the fan is consistent with the predictive rotation speed value of the fan.

### Claim 3

A verification method for a rotation speed value of a fan in a baseboard management controller (BMC), wherein the BMC comprises a control unit and an output unit, the control unit is configured to control a fan to rotate according to a pre-design rotation speed value, the output unit is configured to output an actual rotation speed value of the fan, the verification method comprising:
receiving a predictive rotation speed value of the fan, an input environmental temperature value and a plurality of temperature values of components, sending the received environmental temperature value and a plurality of temperature values of components to the control unit to control the fan to rotate on a condition of the input temperature values;
acquiring the actual rotation speed value of the fan on the condition of the input temperature values;
detecting whether the actual rotation speed value of the fan is consistent with the predictive rotation speed value of the fan; and
outputting information of showing that the actual rotation speed value of the fan does not match the predictive rotation speed value of the fan when the actual rotation speed value of the fan is not consistent with the predictive rotation speed value of the fan.

### Claim 4 (depends on 3)

The verification method as described in claim 3, further comprising:
outputting information of showing that the actual rotation speed value of the fan matches the predictive rotation speed value of the fan when the actual rotation speed value of the fan is consistent with the predictive rotation speed value of the fan.