CN100401230C - Heat dissipation management device - Google Patents
Heat dissipation management device Download PDFInfo
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- CN100401230C CN100401230C CNB2005101235541A CN200510123554A CN100401230C CN 100401230 C CN100401230 C CN 100401230C CN B2005101235541 A CNB2005101235541 A CN B2005101235541A CN 200510123554 A CN200510123554 A CN 200510123554A CN 100401230 C CN100401230 C CN 100401230C
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- 230000017525 heat dissipation Effects 0.000 title abstract 11
- 238000010977 unit operation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 230000010365 information processing Effects 0.000 abstract 7
- 238000001514 detection method Methods 0.000 abstract 2
- 238000007726 management method Methods 0.000 description 40
- 238000010586 diagram Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
A kind of heat dissipation management device is applied to an information processing system, the information processing system has a plurality of heat dissipation devices and a system management unit for controlling the operation of the heat dissipation devices, the heat dissipation management device of the invention includes: the detection unit detects the state of the information processing system and outputs a state signal; the control unit receives the state signal output by the detection unit and determines to control the operation master control right of the heat dissipation device according to the state signal; the heat dissipation management device processes different information processing system states by an intelligent control method, achieves different heat dissipation effects, improves the efficiency of heat dissipation management of the information processing system, controls the heat dissipation fan by using the pulse width modulation signal, can perform very accurate speed control on the heat dissipation fan, adopts an additional control unit, can reduce the load of the information processing system on the operation of the fan, and can be integrated with the information processing system, thereby saving the cost.
Description
Technical field
The invention relates to a kind of radiating management device, particularly about a kind of radiating management device that is applied in a plurality of heat abstractors and this heat abstractor operation of a control.
Background technology
Along with the development of CPU, GPU technology, after computer-internal CPU and the increase of GPU frequency, its power consumption and thermal value are also along with improve, for cooling often requires to adopt more powerful powerful fan.But comparatively speaking, the rotating speed of fan is high more, and the noise of generation is also just big more.Therefore, the radiator fan in the cabinet (as the fan on cpu fan, video card fan, power supply fan and the cabinet etc.) has just formed the main noise source of computing machine.
Yet, if just constantly increase fan number and rotating speed, except above-mentioned noise problem, more can cause power wastage for the heat-sinking capability of system, also can reduce fan life simultaneously, cause system's operation costs to increase.Therefore, be generally the purpose that reaches the control rotation speed of the fan, detect the temperature of wind inlet of fan by the thermistor of fan spindle bearing, CPU work the time can produce heat, and guide to heat radiator itself by heat radiator with the heat of CPU this moment, through fan the heat on the heat radiator dispelled again, therefore the heat on heat radiator is high more, the temperature that thermistor is sensed is just high more, and just can avoid cpu temperature too high with the high rotational speed operation this moment, but the method can't accurately be controlled the rotating speed of fan.
The method of another kind of control fan is exactly the linear voltage stabilization method.By the DC voltage of linear voltage regulator adjustment fan, just control fan by the DC voltage at control fan two ends.This method must apply specific voltage to fan before the fan entry into service, the so-called trigger voltage of this specific voltage, when fan in the running, stop below the voltage if drop to one for the magnitude of voltage of fan, can make fan shut down.Trigger voltage usually can be approximately 25%～50% of fan rated voltage more than or equal to stopping voltage, yet, when using the linear voltage stabilization method not do the speed monitoring, can't learn when fan can start and when can shut down.Address the above problem two kinds of ways are generally arranged, first kind is that the voltage of avoiding being applied to fan is lower than trigger voltage, though this can select correct voltage can both receive suitable trigger voltage to guarantee each fan by the mode of software control, if consider problem of aging, then can cause the restriction of speed control range.Second method then is to adopt velocity gauge, this velocity gauge can be monitored by micro controller, therefore can allow computer system know that fan has or not and start or stagnate,, but need longer design time and extra hardware and software cost though this way is more firm and can not waste.
The technology that comparatively generally adopts is with pulse-length modulation (PWM at present, Pulse WidthModulating) directly controls fan, refer to the on off state that adopts fixing frequency control fan power supply, output voltage can be supplied with pulse mode, be obtained required voltage and frequency by the mode that changes pulse width, quantity.The adjustment by effective duty cycle (Duty cycle) just is as the control of rotation speed of the fan, and effectively duty cycle is big more, and the rotating speed of fan is just fast more.For instance, the rotating speed that changes fan can reduce voltage, reduce voltage and can control voltage by variable resistor and fan is strengthened or weaken; Another kind of mode then is to change ON time, mode service voltage with outage and energising, such as so that 12V to be provided sometimes, sometimes provide the pattern of 0V to change the fan voltage conduction status, control the intensity that fan moves according to the length and the periodicity of ON time again, just can change the intensity of rotation speed of the fan, pulse-length modulation that Here it is as 10%～90% different time cycle.
The intrasystem system management chip that uses a computer carries out the control of fan in the mode of pulse-length modulation, and driving circuit is simple, starting characteristic good, and the transistor thermal value of Control current is minimum simultaneously; But its consumed power height, and be not easy to accomplish the control of precise speed, in addition, when fan breaks down, need personnel with manual eliminating, consumed time makes system temperature too high easily, causes the situation when machine, even the System on Chip/SoC damage, moreover, if reach the purpose of system monitoring, must use multiple logical circuit, cause cost too high.
Therefore, how to provide a kind of and utilize simple design and to reach the scheme of system monitoring purpose at different system state (as fan failure) balanced system temperature, real is present problem demanding prompt solution.
Summary of the invention
For overcoming above-mentioned problems of the prior art, fundamental purpose of the present invention is to provide a kind of radiating management device, at different system state balance system temperature.
Another object of the present invention is to provide a kind of radiating management device that can monitor system.
A further object of the present invention is to provide a kind of cost-effective radiating management device.
For reaching above-mentioned and other purpose, a kind of radiating management device of the present invention, be applied in an information handling system, wherein, this information handling system has the System Management Unit of a plurality of heat abstractors and this heat abstractor operation of a control, this radiating management device comprises: a detecting unit, detect the state of this information handling system, and export a status signal, information in this status signal comprises this information handling system and whether is in stand-by state, when this information handling system is in stand-by state, whether this information handling system starts, and when this information handling system had started, whether one of them person of these a plurality of heat abstractors fault, and one of them person of these a plurality of heat abstractors is when breaking down, and whether the heat abstractor of this fault is replaced by the heat abstractor of another normal operation; An and control module, receive the status signal of this detecting unit output, and according to the operation ownership of this heat abstractor of this status signal decision control, do the management of corresponding heat abstractor at the various states of this information handling system, with the balanced system temperature, if the received interior information of status signal of this control module is in this stand-by state for this information handling system, then this ownership belongs to this control module; If the received interior information of status signal of this control module is in stand-by state for this information handling system and this information handling system starts, then this ownership belongs to this control module, and behind a Preset Time, this ownership is transferred the System Management Unit that gives this information handling system, to control the operation of this heat abstractor by this System Management Unit, if the received interior information of status signal of this control module is in stand-by state for this information handling system and this information handling system does not start, then this ownership belongs to this control module; And if the received interior information of status signal of this control module has started for this information handling system, and one of them person of these a plurality of heat abstractors breaks down, then this ownership belongs to this control module, if the received interior information of status signal of this control module has started for this information handling system, and one of them person of these a plurality of heat abstractors does not break down, and then this ownership belongs to this System Management Unit; If being one of them person of these a plurality of heat abstractors, the received interior information of status signal of this control module breaks down, and the heat abstractor of this fault has been replaced by the heat abstractor of another normal operation, then this ownership belongs to this System Management Unit, if being one of them person of these a plurality of heat abstractors, the received interior information of status signal of this control module breaks down, and the heat abstractor of this fault is not replaced by the heat abstractor of another normal operation, and then this ownership belongs to this control module.
Compared with prior art, radiating management device of the present invention is by a kind of intelligent gimmick of controlling, different information handling system states is handled, realize different radiating effects, can improve the efficient of information handling system radiating management, in addition, the present invention uses pulse-width signal control radiator fan, can carry out point-device speed control to radiator fan, the present invention adopts the control module that adds, can reduce the load of information handling system to fan operation, this control module can be integrated with this information handling system, saves cost.
Description of drawings
Fig. 1 is the framework annexation synoptic diagram between radiating management device of the present invention and the information handling system; And
Fig. 2 is the concrete treatment scheme synoptic diagram of control module after the status information that receives detecting unit output of radiating management device of the present invention.
Embodiment
Embodiment
See also Fig. 1, it is the configuration diagram between radiating management device of the present invention and the information handling system.This radiating management device 1 is applied in an information handling system 2, and this information handling system 2 has a plurality of heat abstractors 20 and by control width modulation (Pulse WidthModulation; PWM) mode of signal is controlled the System Management Unit 21 of these heat abstractor 20 operations (rotating speed that refers to this heat abstractor 20), this radiating management device 1 comprises a detecting unit 10 and one and the control module 11 that electrically connects of this detecting unit 10, wherein, this information handling system 2 is to be applied in palmtop computer (Pocket PC), PDA(Personal Digital Assistant), notebook computer (Notebook), desktop PC, in server (Server) or the supercomputer (Super Computer), this heat abstractor 20 be radiator fan, this System Management Unit 21 be system management chip (System Management Chip), in addition, this information handling system 2 also comprises a power module 22, this power module 22 provides this heat abstractor 20 and this control module 11 1 standby voltages, and this System Management Unit 21 1 system voltages are provided.
Above-mentioned detecting unit 10 detects the state of this information handling system 2, and exports a status signal.
Above-mentioned control module 11 receives the status signal of these detecting unit 10 outputs, and according to the operation ownership of this heat abstractor 20 of this status signal decision control, if this ownership belongs to this control module, this control module is also as System Management Unit 21, mode by the control pulse-width signal is controlled the operation (rotating speed that refers to this heat abstractor 20) of this heat abstractor 20, it preferably embodiment be CPLD (Complex Programmable LogicDevice; CPLD).
Specifically, the information in the status signal of these detecting unit 10 outputs comprises whether this information handling system 2 is in stand-by state (standby).If this information handling system 2 is in stand-by state, whether this information handling system 2 starts (power on).If this information handling system 2 has started, whether fault is arranged in these a plurality of heat abstractors 20 at least one and if at least one in these a plurality of heat abstractors 20 breaks down, whether the heat abstractor 20 of this fault is replaced by the heat abstractor 20 of another normal operation.
As shown in Figure 2, it is expression control module of the present invention further, concrete treatment scheme after the status information that receives this detecting unit output, this flow process is execution in step S100 at first, judge whether this information handling system is in stand-by state, if, just the information in the status signal that receives of this control module is that this information handling system is in stand-by state, then enter step S101, this ownership belongs to this control module, at this moment, the rotating speed that this control module is adjusted this heat abstractor is half speed or the initial speed set by the user, then enters step S103; Relatively, if the information in the status signal that this control module receives is that this information handling system is not to be in stand-by state, then enter step S102, this ownership does not belong to any object, the rotating speed of this heat abstractor is zero rotating speed, then turns back to this step S100, proceeds to judge.
This step S103, judge whether this information handling system starts, just whether this information handling system starts shooting, this step is based on this information handling system and has been in the judgement of making under the stand-by state, if, just the information in the status signal that receives of this control module is that this information handling system is in stand-by state and this information handling system starts, then enter step S104, this ownership belongs to this control module earlier, at this moment, the rotating speed that this control module is adjusted this heat abstractor is full rotating speed, and through behind the Preset Time this ownership being transferred to the System Management Unit of this information handling system, control the rotating speed of this heat abstractor by this System Management Unit, then enter step S106; Relatively, if the information in the status signal that this control module receives is that this information handling system is in stand-by state and this information handling system does not start, then enter step S105, this ownership still belongs to this control module, at this moment, the rotating speed that this control module is adjusted this heat abstractor is half speed or the initial speed set by this user, and turns back to this step S103, proceeds to judge.
This step S106, judge whether in these a plurality of heat abstractors at least one breaks down, if, just the information in the status signal that receives of this control module is that this information handling system starts, and at least one in these a plurality of heat abstractors breaks down, then enter step S107, this ownership belongs to this control module, at this moment, the rotating speed that this control module is adjusted the heat abstractor of all the other normal operations is full rotating speed, and make a caution unit operation, and play warning function, then enter step S109; Relatively, if the information in the status signal that this control module receives is that this information handling system starts, and at least one in these a plurality of heat abstractors do not break down, then enter step 108, this ownership still belongs to this System Management Unit, at this moment, controls the rotating speed of this heat abstractor by this System Management Unit, and turn back to this step S106, proceed to judge.
This step S109, judge whether the heat abstractor of this fault is replaced by the heat abstractor of another normal operation, if, just the information in the status signal that receives of this control module is that in these a plurality of heat abstractors at least one breaks down, and this heat abstractor that breaks down has been replaced by the heat abstractor of another normal operation, then enter step S110, this ownership belongs to this System Management Unit, at this moment, control the rotating speed of this heat abstractor by this System Management Unit, make this caution unit out of service; Relatively, if being in these a plurality of heat abstractors at least one, the information in the status signal that receives of this control module breaks down, and this heat abstractor that breaks down is not replaced by the heat abstractor of another normal operation, then enter step S111, this ownership belongs to this control module, and at this moment, the rotating speed that this control module is still adjusted the heat abstractor of all the other normal operations is full rotating speed, and make this caution unit continuous service, as caution.
Therefore, the present invention is when this data handling system is in stand-by state, the rotating speed of radiator fan is adjusted to half speed or moves by this control module according to the rotating speed that the user presets, the execution of this step is for when the information handling system stand-by state, still can continue to carry out heat radiation work, reduce the preceding environment temperature of start, can be because information handling system is not started shooting uncontrollable radiator fan, when information handling system starts, earlier the rotating speed of radiator fan is adjusted to full rotating speed by this control module, then will control the ownership of fan operation and transfer this System Management Unit to, this step is in order to make information handling system when start, a period of time is carried out radiating treatment the most efficiently in advance, environment temperature when relaxing start, then control the operation of this radiator fan voluntarily by this System Management Unit, when one of them of radiator fan breaks down, then utilize this control module to carry out the control of radiator fan, and the rotating speed of the radiator fans of all the other normal operations all is adjusted into full rotating speed, remedy the radiating effect of the radiator fan of invention fault, also make simultaneously a caution unit produce alarm signal (as cresset flashing or sound etc.), the situation that the prompting user has had radiator fan to break down, the user can carry out troubleshooting of faults accordingly, at last, be replaced into the radiator fan of a normal operation when the radiator fan that breaks down, the ownership of this radiator fan is transferred to this System Management Unit, and make this caution unit out of service, at this moment, carry out controlling of radiator fan by this System Management Unit.
Radiating management device of the present invention is by a kind of intelligent gimmick of controlling, handle for different information handling system states, reach different radiating effects, can improve the efficient of information handling system radiating management, in addition, the present invention uses pulse-width signal control radiator fan, therefore, can carry out point-device speed control to radiator fan, the present invention adopts the control module that adds, can reduce the load of information handling system to fan operation, this control module can be integrated with this information handling system, saves cost.
Claims (15)
1. a radiating management device is applied in an information handling system, it is characterized in that, this information handling system has the System Management Unit of a plurality of heat abstractors and this heat abstractor operation of a control, and this radiating management device comprises:
One detecting unit, detect the state of this information handling system, and export a status signal, information in this status signal comprises this information handling system and whether is in stand-by state, when this information handling system is in stand-by state, whether this information handling system starts, when this information handling system has started, whether one of them person of these a plurality of heat abstractors fault, and one of them person of these a plurality of heat abstractors is when breaking down, and whether the heat abstractor of this fault is replaced by the heat abstractor of another normal operation; And
One control module, receive the status signal of this detecting unit output, operation ownership according to this this heat abstractor of status signal decision control, if the received interior information of status signal of this control module is in this stand-by state for this information handling system, then this ownership belongs to this control module; If the received interior information of status signal of this control module is in stand-by state for this information handling system and this information handling system starts, then this ownership belongs to this control module, and behind a Preset Time, this ownership is transferred the System Management Unit that gives this information handling system, to control the operation of this heat abstractor by this System Management Unit, if the received interior information of status signal of this control module is in stand-by state for this information handling system and this information handling system does not start, then this ownership belongs to this control module; And if the received interior information of status signal of this control module has started for this information handling system, and one of them person of these a plurality of heat abstractors breaks down, then this ownership belongs to this control module, if the received interior information of status signal of this control module has started for this information handling system, and one of them person of these a plurality of heat abstractors does not break down, and then this ownership belongs to this System Management Unit; If being one of them person of these a plurality of heat abstractors, the received interior information of status signal of this control module breaks down, and the heat abstractor of this fault has been replaced by the heat abstractor of another normal operation, then this ownership belongs to this System Management Unit, if being one of them person of these a plurality of heat abstractors, the received interior information of status signal of this control module breaks down, and the heat abstractor of this fault is not replaced by the heat abstractor of another normal operation, and then this ownership belongs to this control module.
2. radiating management device as claimed in claim 1 is characterized in that, this information handling system is to be applied in palmtop computer, personal digital assistant, notebook computer, desktop PC, server or the supercomputer.
3. radiating management device as claimed in claim 1 is characterized in that this heat abstractor is a radiator fan.
4. radiating management device as claimed in claim 1 is characterized in that, this System Management Unit is controlled the operation of this heat abstractor by the mode of control pulse-width signal.
5. radiating management device as claimed in claim 4 is characterized in that, the operation of this heat abstractor is meant the rotating speed of this heat abstractor.
6. as claim 1 or 4 described radiating management devices, it is characterized in that this System Management Unit is the system management chip.
7. radiating management device as claimed in claim 1 is characterized in that, if this ownership belongs to this control module, this control module is then controlled the operation of this heat abstractor by the mode of control pulse-width signal.
8. radiating management device as claimed in claim 7, it is characterized in that, the operation of this heat abstractor is meant the rotating speed of this heat abstractor, information in the status signal that this control module receives is that this information handling system is in stand-by state, and when this ownership belonged to this control module, the rotating speed that this control module is adjusted this heat abstractor was half speed or the initial speed set by the user.
9. radiating management device as claimed in claim 8, it is characterized in that, information in the status signal that this control module receives is that this information handling system is in stand-by state and this information handling system starts, when making this ownership belong to this control module, the rotating speed that this control module is adjusted this heat abstractor is full rotating speed; Information in the status signal that this control module receives is that this information handling system is in stand-by state and this information handling system does not start, make this ownership belong to this control module, then to adjust the rotating speed of this heat abstractor be half speed or the initial speed set by this user to this control module.
10. radiating management device as claimed in claim 9, it is characterized in that, information in the status signal that this control module receives is that this information handling system starts, and at least one in these a plurality of heat abstractors breaks down, make this ownership belong to this control module, then to adjust the rotating speed of the heat abstractors of all the other normal operations are full rotating speeds to this control module; Information in the status signal that this control module receives is that this information handling system starts, and one of them of these a plurality of heat abstractors is individual not to break down, make this ownership belong to this System Management Unit, then this System Management Unit is controlled the rotating speed of this heat abstractor.
11. radiating management device as claimed in claim 10, it is characterized in that, information in the status signal that this control module receives is that in these a plurality of heat abstractors at least one breaks down, and the heat abstractor of this fault has been replaced by the heat abstractor of another normal operation, make this ownership belong to this System Management Unit, then this System Management Unit is controlled the rotating speed of this heat abstractor; If being in these a plurality of heat abstractors at least one, the information in the status signal that receives of this control module breaks down, and the heat abstractor of this fault is not replaced by the heat abstractor of another normal operation, make this ownership belong to this control module, then to adjust the rotating speed of the heat abstractors of all the other normal operations be full rotating speed to this control module.
12., it is characterized in that this control module is a CPLD as claim 1,7,8,9,10 or 11 described radiating management devices.
13. radiating management device as claimed in claim 1, wherein, this information handling system has a caution unit, if the received interior information of status signal of this control module has started for this information handling system, and one of them person of these a plurality of heat abstractors breaks down, and then makes this caution unit operation; And be replaced by the heat abstractor of another normal operation at the heat abstractor of this fault, then make this caution unit out of service.
14. radiating management device as claimed in claim 13 is characterized in that, this caution unit moves by the cresset flashing or the mode of sounding.
15. radiating management device as claimed in claim 1 is characterized in that, this information handling system also comprises a power module, and this power module provides this heat abstractor and this control module one standby voltage, and this System Management Unit one system voltage is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101235541A CN100401230C (en) | 2005-11-17 | 2005-11-17 | Heat dissipation management device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101235541A CN100401230C (en) | 2005-11-17 | 2005-11-17 | Heat dissipation management device |
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| CN1967443A CN1967443A (en) | 2007-05-23 |
| CN100401230C true CN100401230C (en) | 2008-07-09 |
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| CNB2005101235541A Expired - Fee Related CN100401230C (en) | 2005-11-17 | 2005-11-17 | Heat dissipation management device |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8484496B2 (en) * | 2011-04-22 | 2013-07-09 | Qualcomm Incorporated | Method and system for thermal management of battery charging concurrencies in a portable computing device |
| CN103135712B (en) * | 2011-11-28 | 2015-04-01 | 英业达科技有限公司 | Fan module computing rotation speed of fan unit |
| CN103593198A (en) * | 2013-11-27 | 2014-02-19 | 浪潮电子信息产业股份有限公司 | Implementation method based on PSOC as EC controller on Feiteng processor notebook computer |
| CN103984543A (en) * | 2014-04-24 | 2014-08-13 | 浪潮电子信息产业股份有限公司 | Method for implementing standby, hibernation and wake-up on domestic FeiTeng processor |
| CN106402994B (en) * | 2015-12-15 | 2019-07-16 | 中国科学院理化技术研究所 | A distributed self-healing electric heating floor system |
| CN106440015A (en) * | 2015-12-15 | 2017-02-22 | 中国科学院理化技术研究所 | Electric heating floor system |
| CN112524062B (en) * | 2019-09-19 | 2022-11-25 | 台达电子工业股份有限公司 | Heat dissipation device with energy-saving effect and control method thereof |
| CN112954945A (en) * | 2019-11-26 | 2021-06-11 | 长鑫存储技术有限公司 | Circuit board heat dissipation device and control method thereof |
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| US6643128B2 (en) * | 2001-07-13 | 2003-11-04 | Hewlett-Packard Development Company, Lp. | Method and system for controlling a cooling fan within a computer system |
| CN1466044A (en) * | 2002-07-05 | 2004-01-07 | 广达电脑股份有限公司 | Dynamic temperature control method of computer system |
| CN1470971A (en) * | 2002-07-26 | 2004-01-28 | 巍峰科技股份有限公司 | Computer radiating apparatus |
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2005
- 2005-11-17 CN CNB2005101235541A patent/CN100401230C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6643128B2 (en) * | 2001-07-13 | 2003-11-04 | Hewlett-Packard Development Company, Lp. | Method and system for controlling a cooling fan within a computer system |
| CN1466044A (en) * | 2002-07-05 | 2004-01-07 | 广达电脑股份有限公司 | Dynamic temperature control method of computer system |
| CN1470971A (en) * | 2002-07-26 | 2004-01-28 | 巍峰科技股份有限公司 | Computer radiating apparatus |
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