CN100454213C - Control device and method for starting fan when computer start - Google Patents
Control device and method for starting fan when computer start Download PDFInfo
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- CN100454213C CN100454213C CNB2005101166433A CN200510116643A CN100454213C CN 100454213 C CN100454213 C CN 100454213C CN B2005101166433 A CNB2005101166433 A CN B2005101166433A CN 200510116643 A CN200510116643 A CN 200510116643A CN 100454213 C CN100454213 C CN 100454213C
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Abstract
A method for controlling start-up fan when computer is started up includes utilizing start-up state identification unit to identify out start-up state of computer and sending said state to control unit then starting fan up by control unit at different start-up intensity according to different start-up state and simultaneously utilizing temperature fetch unit to fetch out temperature of computer and sending temperature data to control unit then starting fan up by control unit at different driving intensity according to different start-up state and different temperature when computer is started up.
Description
Technical field
The present invention relates generally to the computer to dissipate heat technical field, starts fan control device and method when particularly relating to a kind of computer system starting.
Background technology
Computer heat radiation system is the important component part in the modem computer systems, particularly along with the development of supercomputing machine technology, central processing unit (CPU) dominant frequency and power consumption constantly promote, the importance of heat dissipation technology is outstanding day by day, but the process of generally dispelling the heat all can produce noise, and the computer user need finish various operations under peace and quiet, comfortable environment, so it is particularly important that the noise control technique of computing machine also seems.
For when reaching the expection radiating effect, the noise of control fan, people have considered a variety of methods, and more commonly the rotating speed of dynamically adjusting fan according to the temperature and the temperature in chassis of current system processor reaches the mobile equilibrium of heat radiation and noise.
In the computer system heat radiation process, when computer starting, how to start fan and be a very important step in the entire heat dissipation process.
Generally the method for computer system startup fan when starting is: start moment employing higher voltage (perhaps Duty Cycle), and fan full speed or higher speed are changeed entirely, produce moment noise (being generally 1～2 second); After treating the fan normal rotation, reduce driving voltage automatically, other temperature control processes of waiting system are taken over; System's temperature control process is taken over the temperature control control, generally cooperates Super IO to realize by BIOS; System's temperature control process changes temperature, the noise control of implementing computing machine according to system temperature.
The advantage of this method be to start shooting moment fan runs up, and is beneficial to overcome the fan damping, and is not high to the fan quality requirements, is convenient to fan reduce cost (Cost Down); Simultaneously, the heat-sinking capability in start moment raising system particularly when system restarts, is beneficial to system radiating.
But the shortcoming of taking this method also is clearly, and promptly it can produce transient noise when start, and user's experience is quite bad.
Another kind of method at the preliminary powered on moment startup of computer system fan is: adopt lower voltage in start, fan was slowly run in start a period of time even not to be changeed, then according to temperature variation, produce rotation and start (Spin Up) signal, fans in operation, other temperature control processes of waiting system are taken over then; System's temperature control process is taken over the temperature control control, generally cooperates Super IO to realize by BIOS; System's temperature control process changes temperature, the noise control of implementing computing machine according to system temperature.
Adopt this method can conveniently realize quiet start, user experience is good.But its shortcoming also is clearly, and this method is very high to the fan requirement on the one hand, and fan needs less ratio of damping, needs using character fan preferably, and it has increased the cost of computer system virtually; On the other hand, adopt this method to make the heat-sinking capability of computing machine when starting very poor, in the system restart process, when system's internal surface temperature is too high, cause computer crashes easily especially, even cause the physical damage of computer-internal parts.
Therefore, all there are shortcoming in various degree in the start temperature control, the noise control method that start fan during the computer system starting that uses at present and use, although people have adopted several different methods, comprise suitable reduction start rotation speed of the fan, thereby improve the problem of fan noise, but it can't fundamentally solve above-mentioned shortcoming.
Summary of the invention
The present invention starts fan control device and method when starting a kind of computer starting that the above-mentioned shortcoming of fan provides when overcoming computer system starting, it can effectively guarantee the radiating effect of computing machine and meet certain criteria for noise, makes computing machine reach quiet and stable in start-up course.
A kind of computer starting fan assembly for realizing that the present invention provides comprises:
The starting state recognition device is used to discern tentatively powering on or restarting starting state of computing machine;
Control device, be used for and starting state recognition device and fan interconnection, when computer starting, the starting state recognition device identifies the starting state of computer system for tentatively powering on or restarting, and sending this starting state to control device, control device starts fan according to different starting states with different startup intensity.
Computer starting fan assembly of the present invention can also comprise the temperature reading device, is used to read the computer system temperature;
Described temperature reading device links to each other with control device, when computer starting, the temperature reading device reads the temperature of computer system, and sending temperature data to control device, control device starts fan with different temperature with different drive strength for the different starting states that tentatively power on or restart according to computer system.
Described control device has the drive strength of a plurality of orders, and the driving voltage of each order is corresponding to a rotation speed of the fan.
The drive strength of described fan is with voltage or width modulation (PWM, pulse width modulation) control.
Described control device is to store the erasable EPROM that control starts the fan control program, or stores the BIOS ROM that control starts the fan control program.
The present invention also provides a kind of method of computer starting fan, comprises the following steps:
Step 1: when computer starting, the starting state that the starting state recognition device identifies computer system is for powering on for the first time or restart, and sends this starting state to control device;
Step 2: control device starts fan according to different starting states with different drive strength.
The present invention also provides a kind of method of computer starting fan in addition, comprises the following steps:
Step 1: when computer starting, the starting state that the starting state recognition device identifies computer system is for tentatively powering on or restart, and sends this starting state to control device;
Step 2: the temperature reading device reads the temperature of computer system, and sends temperature data to control device;
Step 3: control device starts fan with different temperature with different startup intensity according to different starting states.
Above-mentioned two kinds of described control device of method have the drive strength of a plurality of orders, and the driving voltage of each order is corresponding to a rotation speed of the fan; The drive strength of described fan is with voltage or width modulation (PWM, pulse width modulation) control.
The invention has the beneficial effects as follows: compared with prior art, the present invention makes computer system when the moment of starting shooting had both been kept quite the characteristic of starting shooting, avoid computer system, particularly central processing unit (CPU) high temperature again and caused the danger of system crash even physical damage.When it used a computer owing to tentatively powering at normal boot-strap, the inside computer system temperature was not high, can adopt quiet start, i.e. the slow-speed of revolution, low noise start; Restart computing machine and work as system user, computer system, when particularly the central processing unit surface temperature was higher, fan adopted higher rotation speed, and promptly high rotating speed, high heat radiation promote heat-sinking capability.
Description of drawings
Fig. 1 is that the present invention starts the fan control device synoptic diagram;
Fig. 2 is that the present invention starts the control method for fan process flow diagram;
Embodiment
Further describe control device and the method that the preliminary powered on moment of computer system of the present invention starts fan below in conjunction with accompanying drawing 1～2.
In the present embodiment, the fan that all starts fan control device and method with central processing unit (CPU) fan during as computer system starting of the present invention illustrates realization of the present invention, but the fan that also can adopt other parts of computer-internal is as the control device of starting fan of the present invention and the fan of method, but it does not influence realization of the present invention, simultaneously, the present invention is not limited to the start-up control of central processing unit fan yet.
As shown in Figure 1, the startup central processing unit fan assembly of present embodiment comprises:
Starting state recognition device 4, the starting state that is used to discern computing machine is still restarted (Reset) state for tentatively power on (Power);
Control device 1, with starting state recognition device 4, temperature reading device 2 and 3 interconnection of central processing unit fan, it has the driving voltage Vj of a plurality of orders, the driving voltage Vj of each order is corresponding to a central processing unit fan 3 rotating speed RPM, when computer starting, starting state recognition device 4 identifies the starting state of computer system for tentatively powering on or restarting, and send this starting state to control device 1, simultaneously, temperature reading device 2 also reads the temperature of computer system, and sending temperature data to control device 1, control device 1 starts central processing unit fan 3 with different temperature with different startup intensity according to different starting states.
Below with central processing unit (CPU) fan commonly used, as DELTA company, EFB40*40*20 millimeter series fan, the EFB0412LD system fan is an example, and the startup central processing unit fan assembly of present embodiment is described.
The rotation speed of the fan RPM of the driving voltage Vj of control device 1 and correspondence is as shown in table 1:
Table 1 driving voltage and rotation speed of the fan mapping table
| Order | Driving voltage (representative value) | Rotation speed of the fan (representative value) |
| 1 (low speed) | 6V | 1600～1800 |
| 2 (at a high speed) | 12V | 5000 |
Control device 1 adopts different orders startup central processing unit fans 3 as shown in table 2 according to different starting states and temperature:
Table 2 starting state, temperature and order mapping table
| Starting state | Temperature | Order |
| (Power) for the first time powers on | 25 (near room temperatures) | 1 |
| Restart (Reset) | 60 | 2 |
Above-mentioned control device 1 can utilize on the computer motherboard, stores the erasable EPROM that starts central processing unit fan control program and realizes that perhaps the BIOS (Firmware) by mainboard realizes by software instruction.
By passing through starting state recognition device 4, the starting state that identifies computer system is for tentatively powering on or restarting, and send this starting state to control device 1, simultaneously, the temperature reading device also reads the temperature of computer system, and sending temperature data to control device 1, control device 1 is according to different starting states and different temperature actuated central processing unit fans 3.It reaches the effect of low noise in the start moment employing central processing unit fan 3 low speed rotation start that tentatively powers on, and has improved user's experience; And when the user restarts (Reset) computing machine, then adopt the high speed rotating start, stronger heat-sinking capability is provided.Like this, in the computer system opening process, the characteristic of the start of both can having kept quite when starting central processing unit fan 3, the danger of having avoided the computer system high-temperature condition to cause again.
When computing machine during in preliminary electrifying startup start, starting state recognition device 4 sends preliminary electrifying startup state to control device 1, simultaneously, temperature reading device 2 also reads the temperature of computer system, and send temperature data to control device 1, control device 1 is according to preliminary electrifying startup state and temperature, adopt the 1st rank driving voltage Vj to start central processing unit fan 3, like this, when computer booting, just can use the low speed start, reach the effect of low noise, obtain good user's impression, behind computer booting a period of time T, take over by other temperature control methods of computing machine, the computer user normally uses a computer.If after user's shutdown, when the start that tentatively powers on next time is used, still start central processing unit fan 3 by this method.
When computing machine is being restarted when starting start; starting state recognition device 4 will be restarted starting state and be sent control device 1 to; simultaneously; temperature reading device 2 also reads the temperature of computer system; and send temperature data to control device 1; control device 1 is according to restarting starting state and temperature; adopt the 2nd rank driving voltage Vj to start central processing unit fan 3; like this; when restarting, just can use by computing machine start at a high speed; to obtain higher heat-sinking capability, the protection computer system makes computing machine can not collapse or cause the physical damage of machine element because of high temperature.If the user is still restarted the startup computing machine next time, still restart startup central processing unit fan 3 by this method.
Startup fan control device below in conjunction with present embodiment describes in further detail the relevant startup control method for fan of the present invention of realizing:
(1) when computer starting, the starting state that starting state recognition device 4 identifies computer system is for tentatively powering on or restart, and sends this starting state to control device 1;
During computer starting, the state state of its startup comprises warm start and cold start-up, and cold start-up is meant that the user presses tentatively when powering on (Power) button, starts the state of computing machine, or presses when restarting (Reset) button, starts the state of computing machine; And warm start is meant the user in computed process, the state that starts the operating system when selecting to recomputate machine by the Ctrl+Alt+Del Macintosh or from Windows under the DOS state.The present invention relates to computing machine starts fan when cold start-up control, in the temperature control procedure in the general computing machine use of being controlled at of warm start, not in the scope that the present invention relates to.
When computer starting, user or press the button that tentatively powers on perhaps presses and restarts button, and starting state recognition device 4 is according to different button that the user pressed, the starting state that identifies computer system is for tentatively powering on or restart, and sends this starting state to control device 1.
Simultaneously, temperature reading device 2 reads the temperature of computer system, and sends temperature data to control device 1.
Set a temperature reading device 2 at inside computer system, it can read the temperature of computer system, some vitals particularly, temperature as central processing unit (CPU), power supply etc., temperature reading device 2 among the present invention is read is the temperature of the electric fan 3 pairing parts that will start during with described computer system starting, as what start is central processing unit fan 3, and what then read is central processor temperature.
When computer starting, temperature reading device 2 reads the temperature of computer system, and sends temperature data to control device 1.
(2) control device 1 starts central processing unit fan 3 with different temperature with different startup intensity according to different starting states;
When computing machine during in preliminary electrifying startup start, starting state recognition device 4 sends preliminary electrifying startup state to control device 1, simultaneously, temperature reading device 2 also reads the temperature of computer system, and send temperature data to control device 1, control device 1 is according to preliminary electrifying startup state and temperature, adopt as the 1st rank driving voltage Vj in the table 2 and start central processing unit fan 3, like this, when computer booting, just can use the low speed start, reach the effect of low noise, obtain good user's impression, behind computer booting a period of time T, take over by other temperature control methods of computing machine.
When computing machine is being restarted when starting start; starting state recognition device 4 will be restarted starting state and be sent control device 1 to; simultaneously; temperature reading device 2 also reads the temperature of computer system; and send temperature data to control device 1; control device 1 is according to restarting starting state and temperature; adopt as the 2nd rank driving voltage Vj in the table 2 and start central processing unit fan 3; like this; when restarting, just can use by computing machine start at a high speed; to obtain higher heat-sinking capability, the protection computer system makes computing machine can not collapse or cause the physical damage of machine element because of high temperature.
The present invention makes computer system when the characteristic of start had both been kept quite in start moment, has avoided computer system, particularly central processing unit (CPU) high temperature again and causes the danger of system crash even physical damage.When it used a computer owing to tentatively powering at normal boot-strap, the inside computer system temperature was not high, can adopt quiet start, i.e. the slow-speed of revolution, low noise start; Restart computing machine and work as system user, computer system, when particularly the central processing unit surface temperature was higher, fan adopted higher rotation speed, and promptly high rotating speed, high heat radiation promote heat-sinking capability.
Present embodiment is to the detailed description that the present invention carried out for those of ordinary skills are understood; but those of ordinary skills can expect; can also make other variation and modification in the scope that does not break away from claim of the present invention and contained, it is all in protection scope of the present invention.
Claims (10)
1. a computer starting fan assembly is characterized in that, comprising:
Starting state recognition device (4) is used to discern tentatively powering on or restarting starting state of computing machine;
Control device (1), be used for and starting state recognition device (4) and fan (3) interconnection, when computer starting, starting state recognition device (4) identifies the starting state of computer system for tentatively powering on or restarting, and sending this starting state to control device (1), control device (1) starts fan (3) according to different starting states with different startup intensity.
2. startup fan assembly according to claim 1 is characterized in that, also comprises temperature reading device (2), is used to read the computer system temperature;
Described temperature reading device (2) links to each other with control device (1), when computer starting, temperature reading device (2) reads the temperature of computer system, and sending temperature data to control device (1), control device (1) starts fan (3) with different temperature with different drive strength for the different starting states that tentatively power on or restart according to computer system.
3. startup fan assembly according to claim 2 is characterized in that, described control device (1) has the drive strength of a plurality of orders, and the driving voltage of each order is corresponding to a fan (3) rotating speed.
4. startup fan assembly according to claim 3 is characterized in that, the drive strength of described fan (3) is with voltage or pulse width modulation controlled.
5. startup fan assembly according to claim 4 is characterized in that, described control device (1) is to store the erasable EPROM that control starts the fan control program.
6. startup fan assembly according to claim 4 is characterized in that, described control device (1) is to store the BIOS ROM that control starts the fan control program.
7. the method for a computer starting fan is characterized in that, comprises the following steps:
Step 1: when computer starting, the starting state that starting state recognition device (4) identifies computer system is for powering on for the first time or restart, and sends this starting state to control device (1);
Step 2: control device (1) starts fan (3) according to different starting states with different drive strength.
8. the method for a computer starting fan is characterized in that, comprises the following steps:
Step 1: when computer starting, the starting state that starting state recognition device (4) identifies computer system is for tentatively powering on or restart, and sends this starting state to control device (1);
Step 2: temperature reading device (2) reads the temperature of computer system, and sends temperature data to control device (1);
Step 3: control device (1) starts fan (3) with different temperature with different startup intensity according to different starting states.
9. according to the method for claim 7 or 8 described startup fans, it is characterized in that described control device (1) has the drive strength of a plurality of orders, the driving voltage of each order is corresponding to a rotation speed of the fan.
10. the method for startup fan according to claim 9 is characterized in that, the drive strength of described fan (3) is with voltage or pulse width modulation controlled.
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| CNB2005101166433A CN100454213C (en) | 2005-10-26 | 2005-10-26 | Control device and method for starting fan when computer start |
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|---|---|---|---|
| CNB2005101166433A CN100454213C (en) | 2005-10-26 | 2005-10-26 | Control device and method for starting fan when computer start |
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| CN1955881A CN1955881A (en) | 2007-05-02 |
| CN100454213C true CN100454213C (en) | 2009-01-21 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102679A (en) * | 2009-12-21 | 2011-06-22 | 和硕联合科技股份有限公司 | Control system and method for regulating fan speed dynamically |
| CN102444598B (en) * | 2010-09-30 | 2016-05-04 | 赛恩倍吉科技顾问（深圳）有限公司 | Fan rotation speed control apparatus and method |
| CN103500004A (en) * | 2013-10-18 | 2014-01-08 | 浪潮电子信息产业股份有限公司 | Method for saving energy in starting process of cloud equipment |
| CN103729284A (en) * | 2013-12-25 | 2014-04-16 | 合肥联宝信息技术有限公司 | Method and device for recording service life of computer fan |
| CN106020391B (en) * | 2016-05-12 | 2019-09-20 | 福建捷联电子有限公司 | A kind of microminiature computer fan control method |
| WO2018152762A1 (en) * | 2017-02-24 | 2018-08-30 | 华为技术有限公司 | Terminal radiator device and noise control method |
| CN108105138B (en) * | 2017-12-18 | 2019-11-05 | 青岛海信激光显示股份有限公司 | A kind of target method for starting fan |
| CN111831024B (en) * | 2019-04-19 | 2022-03-01 | 群联电子股份有限公司 | Temperature control circuit, memory storage device and temperature control method |
| CN110069118A (en) * | 2019-05-28 | 2019-07-30 | 丙申南京网络技术有限公司 | A kind of computer fan starting heat dissipation and temperature control equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5848282A (en) * | 1996-01-26 | 1998-12-08 | Samsung Electronics Co., Ltd. | Computer system with a control funtion of rotation speed of a cooling fan for a microprocessor chip therein and a method of controlling the cooling fan |
| CN2443421Y (en) * | 2000-06-23 | 2001-08-15 | 保锐科技股份有限公司 | Computer power supply device with heat radiation and noise-proof control |
| US20040230402A1 (en) * | 2003-04-29 | 2004-11-18 | Texas Instruments Incorporated | Integrated furnace control board and method |
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2005
- 2005-10-26 CN CNB2005101166433A patent/CN100454213C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5848282A (en) * | 1996-01-26 | 1998-12-08 | Samsung Electronics Co., Ltd. | Computer system with a control funtion of rotation speed of a cooling fan for a microprocessor chip therein and a method of controlling the cooling fan |
| CN2443421Y (en) * | 2000-06-23 | 2001-08-15 | 保锐科技股份有限公司 | Computer power supply device with heat radiation and noise-proof control |
| US20040230402A1 (en) * | 2003-04-29 | 2004-11-18 | Texas Instruments Incorporated | Integrated furnace control board and method |
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