# US 2014/0153184 A1 · Fan control system and method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0153184 A1 - Document ID: US20140153184A1 - Status: Published application - Kind: A1 - Application number: 13/859,744 - Filed: 2013-04-10 - Published: 2014-06-05 - Earliest claimed: 2012-12-04 - Assignees: Hon Hai Precision Industry Co., Ltd. - Applicants: Hon Hai Precision Industry Co., Ltd. - Inventors: YAO-TING CHANG; CHAO-KE WEI - Web page: https://patentgrep.com/patent/US20140153184A1 ## CPC - G06F 1/20: Cooling means - G06F 1/26: Power supply means, e.g. regulation thereof (for memories G11C) - H05K 7/20836: {Thermal management, e.g. server temperature control} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract A fan control system is executed by a microcomputer of a container data center. The center includes a number of server racks, and each server rack includes a number of fans. The system includes a control module and an adjusting module. The control module obtains a current power consumption of each server rack, determines the current power consumption of which server rack is greater than a standard value, and transmits an adjusting signal to each determined server rack. The adjusting module decreases a rotation speed of at least one fan of each determined server rack according to the adjusting signal until the current power consumption of each determined server rack is less than the standard value. A related fan control method is also provided. ## Claims ### Claim 1 A fan control system to be executed by a microcomputer of a container data center, the container data center comprising a plurality of server racks, each of the plurality of server racks comprising a plurality of fans, the fan control system comprising: a control module to obtain a current power consumption of each of the plurality of server racks, determine the current power consumption of which of the plurality of server racks is greater than a standard value, and transmit an adjusting signal to each determined server rack; and an adjusting module to decrease a rotation speed of at least one fan of each determined server rack according to the adjusting signal; wherein, each time after the adjusting module decreases the rotation speed of at least one fan of each determined server rack, the control module again obtains the current power consumption of each of the plurality of server racks, determines the current power consumption of which of the plurality of server racks is greater than the standard value, and transmits the adjusting signal to each determined server rack. ### Claim 2 (depends on 1) The fan control system as described in claim 1, wherein the adjusting module to decrease a rotation speed of at least one fan of each determined server rack according to the adjusting signal comprises: the adjusting module is to decrease the rotation speed of each of the plurality of fans of each determined server rack a first preset value according to the adjusting signal. ### Claim 3 (depends on 1) The fan control system as described in claim 1, wherein the adjusting module to decrease a rotation speed of at least one fan of each determined server rack according to the adjusting signal comprises: the adjusting module is to determine the rotation speed of which of the plurality of fans of each determined server rack is greatest, and decrease the rotation speed of the determined fan a second preset value according to the adjusting signal. ### Claim 4 (depends on 1) The fan control system as described in claim 1, wherein the control module is further operable to generate a warning signal when the current power consumption of one of the plurality of server racks is greater than the standard value. ### Claim 5 A fan control method to be executed by a microcomputer of a container data center, the container data center comprising a plurality of server racks, each of the plurality of server racks comprising a plurality of fans, the fan control method comprising: obtaining a current power consumption of each of the plurality of server racks; determining the current power consumption of which of the plurality of server racks is greater than a standard value, and transmitting an adjusting signal to each determined server rack; and decreasing a rotation speed of at least one fan of each determined server rack according to the adjusting signal; wherein, each time after decreasing the rotation speed of at least one fan of each determined server rack according to the adjusting signal, the current power consumption of each of the plurality of server racks is again obtained, and the rotation speed of at least one fan of each server rack which current power consumption is determined to be greater than the standard value is again decreased. ### Claim 6 (depends on 5) The fan control method as described in claim 5, wherein decreasing a rotation speed of at least one fan of each determined server rack according to the adjusting signal comprises: decreasing the rotation speed of each of the plurality of fans of each determined server rack a first preset value according to the adjusting signal. ### Claim 7 (depends on 5) The fan control method as described in claim 5, wherein decreasing a rotation speed of at least one fan of each determined server rack according to the adjusting signal comprises: determining the rotation speed of which of the plurality of fans of each determined server rack is greatest, and decreasing the rotation speed of the determined fan a second preset value according to the adjusting signal. ### Claim 8 (depends on 5) The fan control method as described in claim 5, further comprising: generating a warning signal when the current power consumption of one of the plurality of server racks is greater than the standard value.