CN103869913A - Fan radiating system and method - Google Patents
Fan radiating system and method Download PDFInfo
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- CN103869913A CN103869913A CN201210550771.9A CN201210550771A CN103869913A CN 103869913 A CN103869913 A CN 103869913A CN 201210550771 A CN201210550771 A CN 201210550771A CN 103869913 A CN103869913 A CN 103869913A
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Abstract
The invention discloses a fan radiating system. The fan radiating system is used for controlling the rotating speed of fans which radiates heat of memory banks inserted into memory inserting slots, wherein the memory inserting slots are divided into a plurality of groups. The fan radiating system comprises a CPLD (Complex Programmable Logic Device) and a BMC (Baseboard Management Controller), wherein the CPLD is used for acquiring the state information of the memory inserting slots, acquiring the number of the memory inserting slots with memory banks in each group of memory inserting slots according to the state information, and acquiring the corresponding encoding information according to the number; the BMC acquires the corresponding rotation speed percentage according to the encoding information and outputs the corresponding PWM (Pulse-Width Modulation) signal with the rotation speed percentage to the fan radiating the heat of the group of memory inserting slots. According to the fan radiating system, the rotation speed of one corresponding fan radiating the heat of one group of memory inserting slots is controlled according to the number of the memory banks connected to each group of memory inserting slots, so that the utilization rate of energy sources is effectively improved. The invention also provides a fan radiating method.
Description
Technical field
The present invention relates to a kind of fan radiating system and method.
Background technology
In server system, conventionally all can there be multiple fans to be used for dispelling the heat to memory bar.Present general design is that position arranges a temperature sensor near memory bar, to measure the temperature in a certain region, then carrys out according to this regional temperature the rotation speed of the fan that corresponding adjusting is used to this region to dispel the heat.But such design normally all sticks with according to all memory banks that memory bar designs.But in the middle of practical application, memory bank can't be stuck with.Therefore,, if when system is dispelled the heat to system to stick with the scheme of memory bar, may cause energy dissipation, reduced the utilization factor of the energy.
Summary of the invention
In view of above content, be necessary to provide a kind of memory bar number that can peg graft according to reality to regulate cooling system and the method for the rotating speed of corresponding fan.
A kind of fan radiating system, the rotating speed of the fan dispelling the heat for the memory bar of controlling accessing in memory bank, wherein this memory bank is divided into some groups, and this fan radiating system comprises:
One detecting unit, for obtaining the status information of these memory banks, and obtains accessing in each group of memory bank the quantity of the memory bank of memory bar according to this status information;
One first storage unit, for storing the coded message of quantity of memory bank of corresponding access memory bar;
One coding unit obtains corresponding coded message according to the quantity of the memory bank of the access memory bar acquiring in this first storage unit, and exports this coded message;
One second storage unit, for storing the rotating speed number percent of the fan corresponding with coded message; And
One control module obtains corresponding rotating speed number percent according to this coded message in this second storage unit, and the fan that dispels the heat of output memory bar that pwm signal that should rotating speed number percent is most installed on this group memory bank.
A kind of fan cooling method, the rotating speed of the fan dispelling the heat for the memory bar of controlling accessing in memory bank, wherein this memory bank is divided into some groups, and this fan cooling method comprises the steps:
Obtain the status information of each memory bank in each group memory bank;
Obtain accessing in each group of memory bank the quantity of the memory bank of memory bar according to this status information;
Obtain corresponding coded message according to this quantity;
Obtain the rotating speed number percent of corresponding fan according to this coded message; And
Export corresponding pwm signal to the fan that the memory bar of installing on this packetized memory slot is dispelled the heat according to this rotating speed number percent.
Said fans cooling system and method be by control the rotating speed that corresponds to the fan that this group memory bank dispels the heat according to the quantity of the memory bar of each group memory bank access, thereby effectively improved the utilization factor of the energy.
Brief description of the drawings
Fig. 1 is the block scheme of the preferred embodiments of fan radiating system of the present invention.
Fig. 2 is the concrete block scheme of CPLD and BMC in Fig. 1.
Fig. 3 is the process flow diagram of the preferred embodiments of fan cooling method of the present invention.
Main element symbol description
| CPLD | 10 |
| BMC | 20 |
| Fan | 30 |
| Memory bar | 40 |
| Memory bank | 50 |
| First group of memory bank | 60 |
| Second group of memory bank | 70 |
| Detecting |
100 |
| |
102 |
| The |
104 |
| |
200 |
| The |
202 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Please refer to Fig. 1, the preferred embodiments of fan radiating system of the present invention comprises whether one be plugged with the CPLD(Complex Programmable Logic Device of the status information of memory bar 40 for obtaining memory bank 50, programmable logic controller (PLC)) 10, some fans 30 and for output pwm signal to the BMC(Baseboard Management Controller of each fan 30, baseboard management controller) 20.In present embodiment, memory bank 50 is divided into the memory bar 40 that first and second group memory bank 60 and 70, two fans 30 are respectively used to as being installed on this first and second group memory bank 60,70 and dispels the heat.Wherein each group memory bank includes 12 memory banks 50, represents that two groups of memory banks 60,70 comprise 24 memory banks 50.
Please refer to Fig. 2, this CPLD 10 comprises a detecting unit 100, a coding unit 102 and one first storage unit 104.
This detecting unit 100 is for obtaining the quantity that is connected with the memory bank 50 of memory bar 40 in each group memory bank.In present embodiment, when a memory bar 40 is plugged in a memory bank 50 when interior, one on this memory bank 50 exists signal can become high level, and in the time that this memory bank 50 does not access memory bar 40, the signal that exists of this memory bank 50 is low level.Therefore, this detecting unit 100 is known the quantity of the memory bank 50 of each group memory bank access memory bar 40 for the level that has signal of exporting according to memory bank 50.Present embodiment comprises 24 memory banks 50, and 100 of this detecting units can acquire 24 and have signal, and it is divided into groups.Wherein 24 memory banks 50 be designated 0-23, the memory bank 50 that is designated 0-11 is first group of memory bank 60, the memory bank 50 that is designated 12-23 is second group of memory bank 70.
This first storage unit 104 has been stored the quantity corresponding coded message of the memory bank 50 of the memory bar 40 of having pegged graft in each group memory bank.For example, when existing in one group of memory bank when being not more than the memory bank 50 of 2 and accessing memory bar 40, corresponding coded message is [000]; In the time accessing the quantity of the memory bank 50 of memory bar 40 in one group of memory bank and be 3 or 4, corresponding coded message is [001]; When the quantity that accesses the memory bank 50 of memory bar 40 in one group of memory bank is 5 or 6, corresponding coded message is [010]; In the time accessing the quantity of the memory bank 50 of memory bar 40 in one group of memory bank and be 7 or 8, corresponding coded message is [011]; When the quantity that accesses the memory bank 50 of memory bar 40 in one group of memory bank is 9 to 12, corresponding coded message is [100].
This coding unit 102 accesses the quantity of memory bank of memory bar 40 in memory bank from obtaining in this first storage unit 104 coded message that should quantity according to each group, and exports this coded message to this BMC 20.
This BMC 20 comprises a control module 200 and one second storage unit 202.This second storage unit 202 has been stored the rotating speed number percent of the fan of corresponding coded message.As be [000] when coded message, the rotating speed number percent of correspondence is 20%, when the rotating speed that represents fan is its full speed running 20% of rotating speed; When coded message is [001], corresponding rotating speed number percent is 40%, when the rotating speed that represents fan is its full speed running 40% of rotating speed; When coded message is [010], corresponding rotating speed number percent is 60%, when the rotating speed that represents fan is its full speed running 60% of rotating speed; When coded message is [011], corresponding rotating speed number percent is 80%, when the rotating speed that represents fan is its full speed running 80% of rotating speed; When coded message is [100], corresponding rotating speed number percent is 100%, represents fan full speed running.
This control module 200 for according to the coded message receiving from obtaining in this second storage unit 202 rotating speed number percent that should coded message, and export corresponding pwm signal to corresponding fan according to this rotating speed number percent.While being [010] as received the coded message of first group of memory bank 60 when this control module 200, this control module 200 obtains corresponding rotating speed number percent in this second storage unit 202, be 60%, now, this control module 200 is exported corresponding pwm signal to the fan 30 for the memory bar 40 of installing on this first group of memory bank 60 is dispelled the heat, to meet the radiating requirements of the memory bar 40 of installing on this first group of memory bank 60.
Please refer to Fig. 3, the preferred embodiments of control method for fan of the present invention comprises the steps:
Step S1, this CPLD 10 obtains the status information of each memory bank 50, obtains the signal that exists of each memory bank 50.
Step S2, obtains corresponding each quantity that accesses the memory bank 50 of memory bar 40 in memory bank of organizing according to this status information.
Step S3, obtains corresponding coded message according to this quantity.As being 5 when the quantity that accesses the memory bank 50 of memory bar 40 in one group of memory bank, corresponding coded message is [010].
Step S4, this BMC 20 obtains corresponding rotating speed number percent according to this coded message.
Step S5, exports corresponding pwm signal to the fan 30 that this packetized memory slot is dispelled the heat according to this rotating speed number percent.
Said fans cooling system and method be by control the rotating speed that corresponds to the fan that this group memory bank dispels the heat according to the quantity of the memory bar of each group memory bank access, thereby effectively improved the utilization factor of the energy.
Claims (6)
1. a fan radiating system, the rotating speed of the fan dispelling the heat for the memory bar of controlling accessing in memory bank, wherein this memory bank is divided into some groups, and this fan radiating system comprises:
One detecting unit, for obtaining the status information of these memory banks, and obtains accessing in each group of memory bank the quantity of the memory bank of memory bar according to this status information;
One first storage unit, for storing the coded message of quantity of memory bank of corresponding access memory bar;
One coding unit obtains corresponding coded message according to the quantity of the memory bank of the access memory bar acquiring in this first storage unit, and exports this coded message;
One second storage unit, for storing the rotating speed number percent of the fan corresponding with coded message; And
One control module obtains corresponding rotating speed number percent according to this coded message in this second storage unit, and the fan that dispels the heat of output memory bar that pwm signal that should rotating speed number percent is most installed on this group memory bank.
2. fan radiating system as claimed in claim 1, is characterized in that: each group memory bank comprises 12 memory banks, and in the time there is the memory bank access memory bar that is not more than 2 in one group of memory bank, corresponding coded message is [000]; In the time accessing the quantity of the memory bank of internal memory in one group of memory bank and be 3 or 4, corresponding coded message is [001]; When the quantity that accesses the memory bank of internal memory in one group of memory bank is 5 or 6, corresponding coded message is [010]; In the time accessing the quantity of the memory bank of internal memory in one group of memory bank and be 7 or 8, corresponding coded message is [011]; When the quantity that accesses the memory bank of internal memory in one group of memory bank is 9 to 12, corresponding coded message is [100].
3. fan radiating system as claimed in claim 2, is characterized in that: when coded message is [000], the rotating speed number percent of corresponding fan is 20%; When coded message is [001], the rotating speed number percent of corresponding fan is 40%; When coded message is [010], the rotating speed number percent of corresponding fan is 60%; When coded message is [011], the rotating speed number percent of corresponding fan is 80%; When coded message is [100], the rotating speed number percent of corresponding fan is 100%.
4. a fan cooling method, the rotating speed of the fan dispelling the heat for the memory bar of controlling accessing in memory bank, wherein this memory bank is divided into some groups, and this fan cooling method comprises the steps:
Obtain the status information of each memory bank in each group memory bank;
Obtain accessing in each group of memory bank the quantity of the memory bank of memory bar according to this status information;
Obtain corresponding coded message according to this quantity;
Obtain the rotating speed number percent of corresponding fan according to this coded message; And
Export corresponding pwm signal to the fan that the memory bar of installing on this packetized memory slot is dispelled the heat according to this rotating speed number percent.
5. fan cooling method as claimed in claim 4, is characterized in that: each group memory bank comprises 12 memory banks, and in the time there is the memory bank access memory bar that is not more than 2 in one group of memory bank, corresponding coded message is [000]; In the time accessing the quantity of the memory bank of internal memory in one group of memory bank and be 3 or 4, corresponding coded message is [001]; When the quantity that accesses the memory bank of internal memory in one group of memory bank is 5 or 6, corresponding coded message is [010]; In the time accessing the quantity of the memory bank of internal memory in one group of memory bank and be 7 or 8, corresponding coded message is [011]; When the quantity that accesses the memory bank of internal memory in one group of memory bank is 9 to 12, corresponding coded message is [100].
6. fan cooling method as claimed in claim 5, is characterized in that: when coded message is [000], the rotating speed number percent of corresponding fan is 20%; When coded message is [001], the rotating speed number percent of corresponding fan is 40%; When coded message is [010], the rotating speed number percent of corresponding fan is 60%; When coded message is [011], the rotating speed number percent of corresponding fan is 80%; When coded message is [100], the rotating speed number percent of corresponding fan is 100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210550771.9A CN103869913A (en) | 2012-12-18 | 2012-12-18 | Fan radiating system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210550771.9A CN103869913A (en) | 2012-12-18 | 2012-12-18 | Fan radiating system and method |
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| CN103869913A true CN103869913A (en) | 2014-06-18 |
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| CN201210550771.9A Pending CN103869913A (en) | 2012-12-18 | 2012-12-18 | Fan radiating system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109683687A (en) * | 2018-12-25 | 2019-04-26 | 浪潮电子信息产业股份有限公司 | A kind of server and its control method for lowering temp, device, equipment |
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2012
- 2012-12-18 CN CN201210550771.9A patent/CN103869913A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109683687A (en) * | 2018-12-25 | 2019-04-26 | 浪潮电子信息产业股份有限公司 | A kind of server and its control method for lowering temp, device, equipment |
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Application publication date: 20140618 |