CN1848041A - Active and negative switching radiating system for notebook computer - Google Patents
Active and negative switching radiating system for notebook computer Download PDFInfo
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- CN1848041A CN1848041A CNA2005101061997A CN200510106199A CN1848041A CN 1848041 A CN1848041 A CN 1848041A CN A2005101061997 A CNA2005101061997 A CN A2005101061997A CN 200510106199 A CN200510106199 A CN 200510106199A CN 1848041 A CN1848041 A CN 1848041A
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- 230000005855 radiation Effects 0.000 claims description 50
- 230000017525 heat dissipation Effects 0.000 claims description 5
- 230000009897 systematic effect Effects 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 101100112083 Arabidopsis thaliana CRT1 gene Proteins 0.000 description 1
- 101100238301 Arabidopsis thaliana MORC1 gene Proteins 0.000 description 1
- 101000741289 Homo sapiens Calreticulin-3 Proteins 0.000 description 1
- 101000969621 Homo sapiens Monocarboxylate transporter 12 Proteins 0.000 description 1
- 102100021444 Monocarboxylate transporter 12 Human genes 0.000 description 1
- 101100519629 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) PEX2 gene Proteins 0.000 description 1
- 101100468521 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) RFX1 gene Proteins 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The present invention discloses an active and passive switchover type radiating system, which can be used in notebook computer. It includes the following several portions: an operation system and its power supply management device, a basic input/output system, an embedded controller and an interface created between said basic input/output system and said embedded controller. Said invention also provides the concrete action of the above-mentioned every portion and concrete working principle of said switchover type radiating system. Said active and passive switchover type radiating system can make notebook computer not only have the good radiating function, but also have high energy-saving effect.
Description
[technical field]
The present invention relates to a kind of cooling system, refer in particular to a kind of passive switching radiating system of master that is used for notebook computer.
[technical background]
Now, in numerous technical barriers of notebook computer, heat dissipation problem is to influence the important technology difficult problem that notebook computer performance improves, and in a sense, heat dissipation problem is the bottleneck problem of enhancing product performance.General notebook computer cooling system all is made up of three parts: CPU, heat radiator, fan.CPU is the main source that produces heat, and when CPU worked, heat was flowed out continuously by CPU; Because the heat radiator contact is the CPU surface, so the heat that CPU produced will soon pass on the heat radiator; The heat that passes on the heat radiator is taken away by the air-flow that the fan rotation is caused again.So circulation is without cease, and the heat delivered that produces in the time of just CPU can being worked is to machine exterior.The basic radiating mode of the common employing of notebook computer that Here it is, utilize system fan to be issued to the heat radiation of notebook computer total system in the situation that does not reduce system performance, promptly utilize fan the active heat removal mode of thermal source band from CPU, this radiating mode mainly is applicable to when current operational system has sufficient power supply to power, under the situation of the performance of restriction system not, reached the good heat radiation purpose of total system, but this kind radiating mode fan must produce bigger sound even noise when operation.
In addition, in some cases, when for example current operational system utilizes electric battery to power, for reaching the electric weight of saving battery, the purpose that prolongs the flying power of battery, just need to adopt passive radiating mode this moment, so that in quiet environment, reach the heat radiation of total system.Thereby so-called passive radiating mode is exactly to allow the processor of heating or equipment reduce the generation that performance reduces heat under the situation that does not produce noise.So the heat radiation of notebook computer is related to the normally key issue of the flying power of steady operation, the electric weight of saving battery, prolongation battery of total system again.
Therefore, heat radiation, the energy-conservation critical problem that just becomes the notebook computer heat dissipation technology.
[summary of the invention]
The object of the present invention is to provide a kind of passive switching radiating system of master that is used for notebook computer, it can reach good heat radiation purpose can be saved the electric weight of battery again, be prolonged battery under battery powered mode flying power.
The technical solution adopted in the present invention is: the passive switching radiating system of master of the present invention, comprise the operating system power management, Basic Input or Output System (BIOS), embedded controller, set up interface between Basic Input or Output System (BIOS) and embedded controller, the Current Temperatures that embedded controller produces when being used to gather the CPU operation, the operating system power management is used for being communicated with the Current Temperatures of knowing CPU with embedded controller by Basic Input or Output System (BIOS), embedded controller is provided with active heat radiation key temperatures threshold points _ ACx, embedded controller also can be provided with the running rank ALx of system radiating equipment according to the correspondence of the x value the among _ ACx, Basic Input or Output System (BIOS) is set passive heat radiation key temperatures threshold points _ PSV, Basic Input or Output System (BIOS) and embedded controller are set ultimate temperature threshold points _ CRTx jointly respectively, and operating system power management and embedded controller relatively come to determine according to the size of Current Temperatures _ TMP and each threshold points and switch radiating mode.
The technique effect that the present invention reached is: notebook computer comes reporting system to carry out active heat removal or carries out passive heat radiation according to the different of powering mode or according to user's selection, and between active heat radiation and passive heat radiation, switch in the size according to the CPU heat dissipation capacity under the different running environment, when mainly taking the initiative radiating mode, the purpose of total system heat radiation but also the performance of restriction system had not only been reached; When mainly taking passive radiating mode, can save the electric weight of battery, the flying power that prolongs battery can reach the total system heat radiation again in quiet environment purpose.
[description of drawings]
The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is a structured flowchart of the present invention.
Fig. 2 is the parameter setting exemplary plot of the active heat radiation of the present invention;
Fig. 3 is the parameter setting exemplary plot of passive heat radiation of the present invention;
Fig. 4,5,6,7 is respectively the passive switching radiating system workflow diagram of master of the present invention.
[embodiment]
The present invention designs for the heat radiation that solves notebook-computer system, as shown in Figure 1, it mainly comprises Basic Input or Output System (BIOS) (hereinafter to be referred as BIOS) 1, embedded controller (hereinafter to be referred as EC) 2, operating system power management (hereinafter to be referred as OSPM) 3 and CPU4, BIOS1 is communicated with EC2 by the I/O interface, temperature when EC2 gathers the CPU4 operation by SMBUS, OSPM3 is communicated with the temperature of knowing CPU4 by BIOS1 with EC2.
Mainly there are two kinds of heat control schemes in the heat radiation of notebook computer: a kind of is the active heat removal mode; A kind of is passive radiating mode.So-called active heat removal mode is exactly to utilize system fan to be issued to the heat radiation of notebook computer total system in the situation that does not reduce system performance; Thereby so-called passive radiating mode is exactly to allow the processor of heating or equipment reduce the generation that performance reduces heat under the situation that does not produce noise.The marrow of the passive switching radiating system of master of the present invention is to give OSPM3 the control decision of radiating mode and EC2 does jointly, and BIOS1 and EC2 are responsible for providing parameter, method and concrete execution.
The present invention is provided with parameter by system: EC2 is provided with active heat radiation key temperatures threshold points _ ACx (wherein, x=0,1,2 ...), EC2 also can be provided with the running rank ALx (x=0 wherein of system radiating equipment according to the correspondence of the x value the among _ ACx, 1,2 ... its running rank can be set at low speed, middling speed, at a high speed, at full speed etc.), BIOS1 sets passive heat radiation key temperatures threshold points _ PSV, BIOS1 and EC2 set ultimate temperature threshold points _ CRTx respectively (wherein jointly, x=0,1,2 ... the temperature value that sets raises successively), in the operational process of system, BIOS1 and EC2 be the Current Temperatures _ TMP of reading system (amount that changes at any time with the working condition and the working environment of system) immediately in addition, and these parameters also are several staples that the passive suitching type heat radiation of master of the present invention realizes.
If default value _ ACx is less than the setting value of _ PSV, the current radiating mode of system lays particular emphasis on the active heat removal mode so, as shown in Figure 2:
1.OSPM3 (or EC2) compares the Current Temperatures _ TMP of system and the key temperatures threshold points _ ACx of setting, when the Current Temperatures _ TMP of the system of discovery passes through key temperatures threshold points _ ACx, OSPM3 (or EC2) opens active heat removal equipment, and its running rank ALx (system radiating equipment refers to fan) according to circumstances is set.
2.OSPM3 (or EC2) compares the Current Temperatures _ TMP of system and the key temperatures threshold points _ PSV of setting, if find to pass through key temperatures threshold points _ PSV, the performance that OSPM3 will reduce CPU4 reduces the temperature of CPU4.
3.OSPM3 (or EC2) compares the Current Temperatures _ TMP of system and the ultimate temperature threshold points _ CRTx of setting, finds that Current Temperatures _ TMP passes through _ CRTx, OSPM3 (or EC2) will take safeguard measure to system.
If the value that the value of default _ ACx is set greater than _ PSV, the current radiating mode of system lays particular emphasis on passive radiating mode so, as shown in Figure 3:
1.OSPM3 (or EC2) compares the Current Temperatures _ TMP of system and the passive heat radiation key temperatures threshold points _ PSV of setting, finds that Current Temperatures _ TMP passes through _ PSV, the performance that OSPM will reduce CPU reduces the temperature of CPU4.
2.OSPM3 (or EC2) compares the Current Temperatures _ TMP of system and the active heat radiation key temperatures threshold points _ ACx of setting, find that Current Temperatures _ TMP passes through ACx, OSPM3 (or EC2) opens corresponding system radiating equipment, and its running rank ALx according to circumstances is set.
3.OSPM3 (or EC2) compares the Current Temperatures _ TMP of system and the ultimate temperature threshold points _ CRTx of setting, finds that Current Temperatures _ TMP passes through _ CRTx, OSPM3 (or EC2) will take safeguard measure to system.
Shown in Fig. 4,5,6,7, the active heat radiation of the passive suitching type heat radiation of master of the present invention and the switching flow between the passive heat radiation:
1.BIOS1 and set up an interface between EC2.
2.EC2 whether judge current system is the power supply of AC (AC power) pattern, if the power supply of AC pattern, the EC2 control system is carried out the active heat removal mode earlier.EC2 and BIOS1 set active heat radiation key temperatures threshold points _ ACx, passive heat radiation key temperatures threshold points _ PSV and ultimate temperature threshold points _ CRTx, and the selected value of active heat radiation key temperatures threshold points _ ACx is less than the occurrence of passive heat radiation key temperatures threshold points _ PSV at this moment.Current system is if not the power supply of AC pattern for example is the battery mode power supply, and EC2 carries out passive radiating mode earlier with control system.Ensuing flow process goes to flow process B (as shown in Figure 6).
3.EC2 every T interval time (by the default set time) that sets, read Current Temperatures _ TMP of CPU4, and return to BIOS1 by EC2.
4.EC2 the active key temperatures threshold points _ ACx of CPU4 Current Temperatures _ TMP and setting is compared.
5., corresponding fan apparatus will be opened if EC2 finds that Current Temperatures _ TMP passes through _ ACx.
6.BIOS1 obtain Current Temperatures _ TMP of CPU4 from EC2.
7.OSPM3 the passive heat radiation key temperatures threshold points _ PSV of CPU4 Current Temperatures _ TMP and BIOS1 setting is compared.
8., will reduce the temperature of CPU4 by the performance that reduces CPU4 if OSPM3 finds that Current Temperatures _ TMP passes through _ PSV.
9. if EC2 obtains CPU4 Current Temperatures _ TMP once more and continues to rise, find to pass through ultimate temperature threshold points CRTx, system is with the execute protection measure so.
10. as shown in Figure 6, if current system is the battery mode power supply, the EC2 control system is carried out passive radiating mode earlier.EC2 and BIOS1 set active heat radiation key temperatures threshold points _ ACx, passive heat radiation key temperatures threshold points _ PSV and ultimate temperature threshold points _ CRTx, and the selected value of active heat radiation key temperatures threshold points _ ACx is greater than the occurrence of passive heat radiation key temperatures threshold points _ PSV at this moment.
11.BIOS1 obtain CPU4 Current Temperatures _ TMP from EC2.
12.OSPM3 the passive heat radiation key temperatures threshold points _ PSV of CPU4 Current Temperatures _ TMP and setting is compared.
13. find that Current Temperatures _ TMP passes through PSV, OSPM3 will reduce the temperature of CPU4 by the performance that reduces CPU4.
14.EC2 the active heat radiation key temperatures threshold points _ ACx of CPU4 Current Temperatures _ TMP and setting is compared.
15. find that Current Temperatures _ TMP passes through _ ACx, EC2 opens corresponding fan apparatus.
16. if continue to rise EC2 obtains CPU4 Current Temperatures _ TMP once more, find to pass through ultimate temperature threshold points CRTx, system is with the execute protection measure so.
See also Fig. 7; simultaneously, in main passive switching radiating system, heat radiation still is that passive heat radiation all can't effectively reduce under the situation of total system temperature when taking the initiative; in order further to protect the safety of notebook computer, we have also added following safeguard measure:
17. the CPU4 Current Temperatures _ TMP that reads as EC2 continues to rise, and when passing through ultimate temperature threshold points _ CRT0, reduces the temperature of CPU4 from hardware reduction performance.
18. when OSPM3 finds that CPU4 Current Temperatures _ TMP passes through ultimate temperature threshold points _ CRT1, OSPM3 will close total system.
19. when OSPM3 found not have complete shutdown system, the CPU4 temperature that EC2 reads to reach capacity temperature threshold points CRT2, EC2 is all power supplys of shutdown system by force, thereby the total system of closing.
Claims (9)
1. passive switching radiating system of master that is used for notebook computer, comprise operating system power management (3), Basic Input or Output System (BIOS) (1), embedded controller (2), it is characterized in that: (2) set up interface between Basic Input or Output System (BIOS) (1) and embedded controller, Current Temperatures _ TMP that embedded controller (2) produces when being used to gather CPU (4) operation, operating system power management (3) is communicated with Current Temperatures _ TMP of knowing CPU (4) by Basic Input or Output System (BIOS) (1) with embedded controller (2), embedded controller (2) is provided with active heat radiation key temperatures threshold points _ ACx, embedded controller (2) also can be provided with the running rank ALx of system radiating equipment according to the correspondence of the x value the among _ ACx, Basic Input or Output System (BIOS) (1) is set passive heat radiation key temperatures threshold points _ PSV, Basic Input or Output System (BIOS) (1) and embedded controller (2) are set ultimate temperature threshold points _ CRTx jointly respectively, and operating system power management (3) and embedded controller (2) relatively come to determine according to the size of Current Temperatures _ TMP and each threshold points and switch radiating mode.
2. the passive switching radiating system of master as claimed in claim 1, it is characterized in that: described Basic Input or Output System (BIOS) (1) is communicated with embedded controller (2) by the I/O interface, temperature when embedded controller (2) is gathered CPU (4) operation by SMBUS, operating system power management (3) is communicated with the temperature of knowing CPU (4) by Basic Input or Output System (BIOS) (1) with embedded controller (2).
3. the passive switching radiating system of master as claimed in claim 1 is characterized in that: the active heat radiation key temperatures threshold points _ ACx of described systematic parameter is less than passive heat radiation key temperatures threshold points _ PSV.
4. the passive switching radiating system of master as claimed in claim 1 is characterized in that: the passive heat radiation key temperatures threshold points _ PSV of described systematic parameter is less than active heat radiation key temperatures threshold points _ ACx.
5. as claim 3 or the passive switching radiating system of 4 described masters, it is characterized in that: described operating system power management (3) and embedded controller (2) compare Current Temperatures _ TMP and the active heat radiation key temperatures threshold points _ ACx that reads, after finding that Current Temperatures passes through active heat radiation key temperatures threshold points _ ACx, the control system heat dissipation equipment is opened, and sets its running rank ALx.
6. as claim 3 or the passive switching radiating system of 4 described masters, it is characterized in that: described operating system power management (3) and embedded controller (2) compare Current Temperatures _ TMP and the passive heat radiation key temperatures threshold points _ PSV that reads, after finding that Current Temperatures _ TMP passes through passive heat radiation key temperatures threshold points _ PSV, operating system power management (3) will be controlled the performance that reduces CPU (4) and reduce the temperature of CPU (4).
7. as claim 3 or the passive switching radiating system of 4 described masters; it is characterized in that: described operating system power management (3) and embedded controller (2) compare Current Temperatures and the ultimate temperature threshold points _ CRTx that reads; after finding that Current Temperatures _ TMP passes through ultimate temperature threshold points _ CRTx, control system is taked safeguard measure.
8. the passive switching radiating system of master as claimed in claim 5, it is characterized in that: described system radiating equipment comprises fan, described active heat radiation key temperatures threshold points _ ACx can be made as a plurality of, and in corresponding threshold points, the running rank ALx of fan can be set at low speed, middling speed, high speed and rotate at full speed.
9. the passive switching radiating system of master as claimed in claim 7; it is characterized in that: described ultimate temperature threshold points _ CRTx can set a plurality of; and after ultimate temperature threshold points _ CRTx passed through in system, correspondence was taked safeguard measure successively: reduce performance, close total system, close all power supplys by force and close total system from hardware.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005101061997A CN100435070C (en) | 2005-04-05 | 2005-10-09 | Active and negative switching radiating system for notebook computer |
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| CN200510065429.X | 2005-04-05 | ||
| CN200510065429 | 2005-04-05 | ||
| CNB2005101061997A CN100435070C (en) | 2005-04-05 | 2005-10-09 | Active and negative switching radiating system for notebook computer |
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| CN1848041A true CN1848041A (en) | 2006-10-18 |
| CN100435070C CN100435070C (en) | 2008-11-19 |
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| CNB2005101061997A Expired - Fee Related CN100435070C (en) | 2005-04-05 | 2005-10-09 | Active and negative switching radiating system for notebook computer |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788841A (en) * | 2010-03-12 | 2010-07-28 | 浪潮(北京)电子信息产业有限公司 | Cluster heat radiating system and heat radiating method |
| CN101739107B (en) * | 2008-11-24 | 2012-01-25 | 联想(北京)有限公司 | Notebook computer and heat dissipation method thereof |
| CN103092292A (en) * | 2011-10-28 | 2013-05-08 | 宏碁股份有限公司 | Portable computer and system efficiency adjusting method thereof |
| CN101639723B (en) * | 2008-08-02 | 2015-07-29 | 联想（新加坡）私人有限公司 | Heat dissipation system for computers |
| CN104978000A (en) * | 2015-07-01 | 2015-10-14 | 上海与德通讯技术有限公司 | Heat dissipation method and heat dissipation system |
| CN105794221A (en) * | 2013-12-03 | 2016-07-20 | 三星电子株式会社 | Image processing apparatus and control method thereof |
| CN106444910A (en) * | 2016-10-26 | 2017-02-22 | 青岛海信移动通信技术股份有限公司 | Terminal device heat radiation method, device and system |
| CN110109521A (en) * | 2019-05-10 | 2019-08-09 | 联想(北京)有限公司 | A kind of processing method and electronic equipment |
| CN110109522A (en) * | 2019-05-10 | 2019-08-09 | 联想(北京)有限公司 | A kind of processing method and electronic equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7263567B1 (en) * | 2000-09-25 | 2007-08-28 | Intel Corporation | Method and apparatus for lowering the die temperature of a microprocessor and maintaining the temperature below the die burn out |
| US6823240B2 (en) * | 2001-12-12 | 2004-11-23 | Intel Corporation | Operating system coordinated thermal management |
| CN2569190Y (en) * | 2002-09-23 | 2003-08-27 | 华为技术有限公司 | Fan rotary speed intelligent controller for electronic circuit system |
-
2005
- 2005-10-09 CN CNB2005101061997A patent/CN100435070C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639723B (en) * | 2008-08-02 | 2015-07-29 | 联想（新加坡）私人有限公司 | Heat dissipation system for computers |
| USRE47658E1 (en) | 2008-08-02 | 2019-10-22 | Lenovo (Singapore) Pte Ltd | Heat dissipation system for computers |
| CN101739107B (en) * | 2008-11-24 | 2012-01-25 | 联想(北京)有限公司 | Notebook computer and heat dissipation method thereof |
| CN101788841A (en) * | 2010-03-12 | 2010-07-28 | 浪潮(北京)电子信息产业有限公司 | Cluster heat radiating system and heat radiating method |
| CN103092292A (en) * | 2011-10-28 | 2013-05-08 | 宏碁股份有限公司 | Portable computer and system efficiency adjusting method thereof |
| CN105794221A (en) * | 2013-12-03 | 2016-07-20 | 三星电子株式会社 | Image processing apparatus and control method thereof |
| CN104978000A (en) * | 2015-07-01 | 2015-10-14 | 上海与德通讯技术有限公司 | Heat dissipation method and heat dissipation system |
| CN106444910A (en) * | 2016-10-26 | 2017-02-22 | 青岛海信移动通信技术股份有限公司 | Terminal device heat radiation method, device and system |
| CN106444910B (en) * | 2016-10-26 | 2019-01-18 | 青岛海信移动通信技术股份有限公司 | A kind of heat dissipating method of terminal device, apparatus and system |
| CN110109521A (en) * | 2019-05-10 | 2019-08-09 | 联想(北京)有限公司 | A kind of processing method and electronic equipment |
| CN110109522A (en) * | 2019-05-10 | 2019-08-09 | 联想(北京)有限公司 | A kind of processing method and electronic equipment |
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| CN100435070C (en) | 2008-11-19 |
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Assignee: Shenzhen Dinghai Electron Co., Ltd. Assignor: Shenzhen Dingxing Digital Network Technology Co., Ltd. Contract fulfillment period: 2009.11.6 to 2019.11.5 Contract record no.: 2010440000129 Denomination of invention: Active and negative switching radiating system for notebook computer Granted publication date: 20081119 License type: Exclusive license Record date: 20100118 |
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