CN100394358C - Computer system with power-saving capability and method for implementing power-saving mode in computer system - Google Patents
Computer system with power-saving capability and method for implementing power-saving mode in computer system Download PDFInfo
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- CN100394358C CN100394358C CNB2006100924611A CN200610092461A CN100394358C CN 100394358 C CN100394358 C CN 100394358C CN B2006100924611 A CNB2006100924611 A CN B2006100924611A CN 200610092461 A CN200610092461 A CN 200610092461A CN 100394358 C CN100394358 C CN 100394358C
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/28—Supervision thereof, e.g. detecting power-supply failure by out of limits supervision
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
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Abstract
The invention relates to a computer system with electricity-saving function and the method for realizing electricity save mode by moderating CPU speed according to CPU power management mode. The CPU inside computer system is equipped with temperature sensing circuit, the CPU electricity-saving mode information is got from operation system of computer, if the CPU power management mode is electricity-saving mode, then conversing said mode into temperature value and comparing with current temperature sensed by temperature sensor, and moderating CPU according to higher temperature. The CPU electricity-saving mode can slow down CPU speed and reduce power consumption, especially for portable computer system, the internal CPU of which is not provided with said function.
Description
Technical field
The present invention relates to a kind of the have computer system of electricity-saving function and the battery saving mode implementation method of computer system, relate in particular to a kind of speed of regulating CPU, thereby can reduce this computer system with electricity-saving function of power consumption and the battery saving mode implementation method of computer system according to the cpu power management mode of computer system.
Background technology
Computer system is portable computer system especially, because of its good portability and movability are used widely.Expectation along with mobile Internet, DMB (DMB:Digital MultimediaBroadcasting) service etc. move in the popularization of available new services, the utilization factor of portable computer will present the trend of rapid increase.Therefore, by portable computer, available COS will present variedization, and entertainment content (entertainment content) also will sharply increase, thereby the access times of portable computer and service time are also increased thereupon.Because this power consumption of portable computer presents the trend of increase, so people are developing a kind of technology by every means, so that reduce the power consumption of portable computer.
Under this prior art condition, a kind of method that is used to reduce computing machine power consumption is meant: its mainboard inside is provided with the computer system of multiple arrangement (device), close the not power supply of operative installations according to user's selection, so that reduce the method for power consumption to greatest extent.
The other method that is used to reduce computing machine power consumption is meant: the activity of check system (Activity), if in certain hour, there is not system activity, then temporary transient interrupt handler (processor), if customer requirements is arranged, then rerun the method for the processor that has interrupted.
As the processor correlation technique of low power consumption, the power-saving technique (SpeedStep) of Intel company is arranged at present.The electricity-saving function of SpeedStep power-saving technique is meant: CPU supports 4 kinds of patterns, the user is selected according to the environment of oneself, and come dynamic adjustments processor voltage and core frequency (corefrequency) according to each pattern, reduce the technology of electrical source consumption with this.
Support the CPU of power-saving technique to have following special register (Register), one of them register (IA32_PERT_STS) is meant the register of the state of the voltage that stores current C PU, bus ratio (Bus Ratio) and maximum supported value, minimum supported value; Another register (IA32_PERF_CTL) is meant the register that is set with current C PU voltage and bus ratio.The setting of the variable this register of operating system (OS), thus can realize power savings according to the next speed that initiatively adjust CPU of user's setting.
When the user changed cpu model, operating system (OS:Operating System) was by above-mentioned register, the speed of effectively regulating CPU according to the load (load) of CPU.For example, when the user set the best battery mode of CPU or largest battery pattern, Dothan CPU then was fixed as 800Mhz with the maximal rate of CPU, and by above-mentioned register, came the speed of further slow down CPU according to the state of system.
Innernal CPU does not provide the computing machine of economize on electricity hardware electricity-saving function to support multiple cpu power management mode yet, even but battery saving modes such as the best battery mode of this CPU selection CPU or largest battery pattern, the speed of CPU is also without any variation, and only is to regulate the electric power that CPU to computing machine, hard disk, LCD etc. provide.
Do not support the low price type CPU of above-mentioned register not support electricity-saving function, so even the user becomes battery saving modes such as best battery mode or largest battery pattern with the mode initialization of CPU, the speed of CPU also can not reduce, thereby can't obtain substantial power savings.
Summary of the invention
The present invention proposes for addressing the above problem just, one of its order is to provide: the travelling speed that the CPU battery saving mode is regulated CPU according to the temperature of system, thus can reduce a kind of computer system and battery saving mode implementation method thereof of computer system power consumption to greatest extent with electricity-saving function.
Two of purpose of the present invention is to provide: when not supporting the CPU of electricity-saving function the cpu power management mode to be chosen to battery saving modes such as best battery mode or largest battery pattern the user, reduce to below half by speed, realize a kind of computer system and battery saving mode implementation method thereof of low speed battery saving mode with electricity-saving function with CPU.
To achieve these goals, one of the present invention, relate to a kind of computer system with electricity-saving function, it is characterized in that: innernal CPU is provided with temperature sensing circuit, obtain the information of the powder source management mode of current C PU from the operating system of computer system, when the powder source management mode of CPU is battery saving mode, this battery saving mode is converted into the value of temperature and the current system temperature comparison of temperature sensing circuit perception, carrying out CPU according to higher temperature wherein regulates, to realize electricity-saving function, the described CPU that carries out regulates the regulation rate that is meant by the System on Chip/SoC of adjusting computer system, thereby reduces CPU speed.
The invention is characterized in: aforementioned calculation machine system carries out CPU and regulates when the powder source management mode of CPU is best battery mode or largest battery pattern.
Aforementioned calculation machine system does not carry out CPU and regulates when the powder source management mode of CPU is not battery saving mode.
In addition, for achieving the above object, the present invention's two relates to a kind of battery saving mode implementation method of computer system, it is characterized in that: it comprises following step:
The 1st step judges whether the powder source management mode of CPU is battery saving mode;
The 2nd step when the powder source management mode of CPU is battery saving mode, converts battery saving mode to temperature;
The 3rd step when the powder source management mode of CPU is battery saving mode, is measured current system temperature by the temperature sensing circuit of innernal CPU setting;
The 4th step, higher temperature carries out CPU and regulates in temperature value of obtaining according to the battery saving mode of conversion CPU and the current system temperature, to realize electricity-saving function, the described CPU that carries out regulates the regulation rate that is meant by the System on Chip/SoC of adjusting computer system, thereby reduces CPU speed.
Effect of the present invention:
In sum, of the present invention have the computer system of electricity-saving function and the effect of battery saving mode implementation method is: when the cpu power management mode was battery saving mode, the regulation rate of regulating system chipset reduced CPU speed, reduced power consumption.Therefore, the present invention especially can make portable computer prolong battery service time.
In addition, the present invention has the computer system of electricity-saving function and the effect of battery saving mode implementation method is: the low price type CPU that does not support to reduce according to the cpu power management mode CPU speed, this function of minimizing power consumption, when the user selects the CPU battery saving mode, also can reduce the speed of CPU, electricity-saving function is provided.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
Description of drawings
Fig. 1 is the functional block diagram of the computer system with electricity-saving function of the present invention the 1st embodiment;
Fig. 2 is a concrete pie graph relevant with power control function in the computer system with electricity-saving function of the present invention the 1st embodiment;
Fig. 3 is the process flow diagram of battery saving mode implementation method of the computer system of the present invention the 1st embodiment;
Fig. 4 comes the process flow diagram flow chart of regulating system chip regulation rate according to the CPU battery saving mode that is suitable for the inventive method.
The symbol description of major part in the accompanying drawing:
100:CPU 101: Video Controller
102: north bridge 103: primary memory
104:I/O controller 105: south bridge
106: hard disk 107: keyboard controller
150: electric power control part 170: microprocessor
210: operating system (OS) 220: application program
230:CPU 240: System on Chip/SoC
250: microprocessor
Embodiment
Has the computer system of electricity-saving function and the embodiment of battery saving mode implementation method is elaborated to of the present invention with reference to the accompanying drawings.
In the present invention, so-called " battery saving mode " is meant CPU speed half following powder source management mode for the maximal rate that can move.The title of each pattern can be along with the difference of processor manufacturer difference, but can be decided to be largest battery pattern or best battery mode.
In the present invention, so-called " CPU adjusting " is meant according to the temperature range of system and adjusts the clock frequency of CPU and the process of operating voltage, promptly refer to: when the temperature of system surpasses the critical range of regulation, reduce frequency and the operating voltage of CPU, the process of the CPU travelling speed that slows down.
Computer system with electricity-saving function of the present invention has the function that reduces CPU speed when not needing maximum performance.Computer system of the present invention is characterised in that: it also comprises the speed of regulating CPU for according to the powder source management mode of CPU, the microprocessor that can regulate System on Chip/SoC.
Even the travelling speed of CPU reduces, the battery saving mode (for example: largest battery pattern or best battery mode) that is necessary to prolong battery service time of portable computer etc. also will come System on Chip/SoC is regulated according to system temperature, the speed of slow down CPU reduces power consumption.
Fig. 1 is the functional block diagram of the computer system with electricity-saving function of the present invention the 1st embodiment.As shown in Figure 1, the computer system of the present invention the 1st embodiment comprises: CPU100, Video Controller (VideoController) 101, primary memory (Main Memory) 103, be responsible for control primary memory 103 north bridge (NorthBridge) 102, i/o controller (I/O Controller) 104, be in charge of the set of registers (aggregate) of installing the I/O function on every side---south bridge (South bridge) 105, hard disk (HDD) 106, keyboard controller (Keyboard Controller) 107 and microprocessor 170.
CPU100 is responsible for the whole computer system of control and management, and the computing and the logical operation of the data of execution.For this reason, the hardware in the CPU100 has ALU (ALU), control module (control unit), register (register), memory storage interface etc.
North bridge (North Bridge) 102 is responsible for control CPU, primary memory, Video Controller uniform velocity equipment faster.North bridge 102 has Memory Controller, main bridge, AGP controller etc. as directly actuated device.North bridge 102 is connected with south bridge 105 usefulness PCI (peripheral element extension interface) buses.
South bridge (South Bridge) the 105th, the set of registers of I/O function is installed in a kind of management on every side, is responsible for slowly equipment such as control hard disk, keyboard, mouse.
The streams data of device perhaps is responsible for power management around south bridge 105 or control peripheral element extension interface (PCI), integrated device electronics (IDE) and the universal serial bus structural (USB) etc.
I/o controller (I/O Controller) 104 is responsible for the I/O of the data between control computer and the surrounding devices.Primary memory 103 forms working space, is used for driving smoothly various programs.
In the present invention, the operating system of electric power control part 150 and computer system, CPU, System on Chip/SoC (concrete guide bridge) and microprocessor 170 link together and operate, electric power control part 150 is under the control of microprocessor 170, according to the regulation rate (throttling duty) that the powder source management mode of CPU comes the Adjustment System chip, regulate the speed of CPU with this.
Fig. 2 is the inscape detailed maps that battery saving mode be provided of the present invention the 1st embodiment around the computer system microprocessor with electricity-saving function.Though Fig. 2 additionally illustrates application program, this application program 220 is meant the program that is stored in the microprocessor 250.Application program 220 obtains from the operating system (OS) 210 of computer system whether the cpu power management mode (Power Mangagement Mode) that is set is the information of battery saving mode.When application program 220 was battery saving mode at the powder source management mode of CPU, notice microprocessor 250 often carries out CPU to be regulated; Otherwise when being not battery saving mode, then notice there is no need often to carry out the CPU adjusting.
But the inside of CPU230 is provided with the temperature sensing circuit of sensory perceptual system temperature, be responsible for measuring temperature, this measured temperature data is delivered to microprocessor 250, microprocessor 250 is converted into temperature with this battery saving mode information after receiving the battery saving mode information of current C PU by application program 220.At all corresponding temperature range (thermal zone) that stores certain limit of each powder source management mode of CPU, temperature range can be defined as a scope as 10 ℃ to 20 ℃ scope, 21 ℃ to 30 ℃ scopes are defined as another scope.
The application program 220 that is stored in the microprocessor 250 is used to judge the CPU230 kind, and whether identification CPU230 is the CPU that the electricity-saving functions such as power-saving technique of regulating CPU speed are provided according to cpu model.When being judged as computer-internal CPU when not providing CPU speed to slow down function, application program 220 receives the information of relevant cpu power management mode from operating system 210.
The information of relevant cpu power management mode can be selected by the user and stores by the user interface of computer system.For example, when the user uses,, can select battery saving mode (for example: best battery mode or largest battery pattern) under the situation that notebook computer can't be connected on the AC power supplies in order to prolong the service time of battery.
When application program changed the pattern of CPU the user, being used as was that window events (event) receives.Usually the powder source management mode of CPU is supported 4 kinds of patterns such as maximum performance mode, automatic mode, best battery mode and largest battery pattern.This powder source management mode is also nisi, can be different along with the difference of computer maker.
Under best battery mode, CPU is by the following speed operation of half of maximal rate, and the largest battery pattern is meant the pattern that can select when needing to reduce processing speed in the operating process of the CPU processor that requires to move minimum standard or in order to save battery electric power.Under the largest battery pattern, CPU moves with half following speed of maximal rate according to the dump energy of battery.
The powder source management mode of CPU can be managed automatically by the electrical management program of computer system, perhaps carries out manual operation by the user.For example, if battery supply reduces, then this is responded to, and make computing machine convert battery saving mode to automatically.
When the user manually sets powder source management mode, then drive the control panel program of window set in the computer system, set on menu (PowerManagement Applet Menu) or the BIOS setup menu (BIOS Set Up Menu) at the powder source management mode that from above-mentioned control panel program, provides, select to specify specific powder source management mode.Above-mentioned control part 220 will be set at the powder source management mode of computer system from the selected powder source management mode of above-mentioned menu, thereby the powder source management mode of computer system can manually be set at powder source management mode.
The situation that the powder source management mode of computer system is automatically made the optimal power supply management mode that meets current system state describes below.When not thinking that all manually set the powder source management mode of computer system for hardware or software every day if the user thinks automatic setting, set on menu (PowerManagement Applet Menu) or the BIOS setup menu (BIOS Set Up Menu) the selected automatic setting option of powder source management mode at above-mentioned powder source management mode.
Under battery saving mode, microprocessor 250 obtains the relevant information of current system temperature from 0S210, and from application program 220, obtain the battery saving mode information of relevant CPU, after the battery saving mode information with CPU is converted into temperature, compare selected higher temperature, the regulation rate of coming Adjustment System chip (south bridge) according to this temperature with the relevant information of current system temperature, if the regulation rate of System on Chip/SoC is adjusted, then the speed of CPU also will be adjusted thereupon.
In the present invention, the regulation rate of CPU (throttling duty) is meant the travelling speed of each unit interval of CPU, for example, CPU by the unit interval 1/8,1/4,3/8... or the operation of 8/8 speed.The chipset of south bridge (chipset) is supported 12.5% to 87.5% CPU regulation rate with 12.5% unit.
Therefore, CPU speed reduces as the regulation rate of original maximal rate (Full Speed) to some extent.New CPU speed S ' is as following mathematical expression 1, and the maximal rate by CPU multiply by (100%-regulation rate) to be obtained.
[mathematical formulae 1]
S′＝Smax×(100％-TD)
In above-mentioned mathematical expression, Smax is meant the maximal rate of CPU, and TD is meant regulation rate (throttlingduty).
As described in above-mentioned mathematical expression, the regulation rate of CPU (TD) is high more, and CPU speed is low more.Consider that from the economize on electricity aspect preferably regulation rate is high.For example, suppose that regulation rate is 50%, the CPU of 1GHz will move into 0.5GHz; Suppose that regulation rate is 25%, then moves into 0.7GHz.The present invention passes through Adjustment System chip (preferably south bridge) but not the regulation rate of CPU register, can reduce the speed of CPU, thereby realizes electricity-saving function.
CPU speed can be divided into several stages regulates, and for example, supposes that being divided into 5 stages regulates, and may be adjusted to maximal rate, 87.5% speed, 75% speed, 67.5% speed, 50% speed.
Battery saving mode implementation method to computer system of the present invention describes below.Fig. 3 is the battery saving mode implementation method process flow diagram of the computer system of the present invention the 1st embodiment.
S301 when realizing the battery saving mode of computer system according to method of the present invention, judges at first whether CPU has the function of regulating CPU speed according to powder source management mode.
S309 if be judged as the CPU speed controlling function that CPU can provide power-saving technique and so on, then notifies microprocessor to there is no need to regulate, and then informs that to microprocessor the powder source management mode of CPU is not a battery saving mode.Therefore, the regulation rate of computing machine is maintained 0%, and CPU is according to original speed operation.
S303 simultaneously, when the CPU of computer system is when the CPU of CPU speed regulation function of power-saving technique and so on is not provided, then obtains the powder source management mode information of CPU.Powder source management mode information can obtain from the operating system of computer system.The powder source management mode of CPU can change automatically or according to user's selection.
S305 based on the cpu power management mode information that is read, judges whether the powder source management mode of CPU is battery saving modes such as best battery mode or largest battery pattern.
S307 when being battery saving mode, then informs that to microprocessor CPU is a battery saving mode; Otherwise when being not battery saving mode, then enter above-mentioned steps S390, inform that to microprocessor the powder source management mode of CPU is not battery saving mode S309.
When the CPU of computer system does not provide speed regulation function, and the powder source management mode of CPU then regulates according to system temperature when being battery saving mode, regulates the speed of CPU with this.Below the concrete grammar that carries out the CPU adjusting under each battery saving mode is described.
Fig. 4 comes the process flow diagram flow chart of the regulation rate of Adjustment System chip according to the cpu power management mode of the present invention the 1st embodiment.
S401, S403, when the powder source management mode of CPU is battery saving mode, from CPU, receive the data S401 of relevant current system temperature B, from the operating system of computer system, obtain the data of relevant cpu power management mode simultaneously, powder source management mode information is converted into temperature A.
Whether S405, the current system temperature B that judgement will be obtained suddenly from previous step are converted into the value A of temperature greater than the battery saving mode of CPU.
S407 if the current system temperature B that obtains is the value A that is converted into temperature greater than the battery saving mode of CPU, sets the temperature model of CPU for B, then current system temperature B is defined as the temperature range of system.
S411 carries out CPU according to the temperature model of selecting and regulates.
S409, if if the current system temperature B that obtains is not converted into the value A of temperature greater than the battery saving mode of CPU, promptly, the battery saving mode of CPU is converted into the value A of temperature greater than the current system temperature B that obtains suddenly from previous step, then the temperature value A of CPU battery saving mode correspondence is defined as the temperature range (thermal mode) of system, enters above-mentioned steps S411 thereupon and carry out the CPU adjusting.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the modification of the above embodiment.
For example, this has the computer system of electricity-saving function and the battery saving mode implementation method of this computer system the present invention, can be applicable to the desktop computer except that portable computers such as notebook computer, can be applicable to that also except that computing machine other is provided with the portable information device of microprocessor.
Claims (6)
1. computer system with electricity-saving function is characterized in that:
Innernal CPU is provided with temperature sensing circuit, obtain the information of the powder source management mode of current C PU from the operating system of computer system, when the powder source management mode of CPU is battery saving mode, this battery saving mode is converted into the value of temperature and the current system temperature comparison of temperature sensing circuit perception, carrying out CPU according to higher temperature wherein regulates, to realize electricity-saving function, the described CPU that carries out regulates the regulation rate that is meant by the System on Chip/SoC of adjusting computer system, thereby reduces CPU speed.
2. the computer system with electricity-saving function as claimed in claim 1 is characterized in that:
Aforementioned calculation machine system carries out CPU and regulates when the powder source management mode of CPU is best battery mode or largest battery pattern.
3. the computer system with electricity-saving function as claimed in claim 1 is characterized in that:
Aforementioned calculation machine system does not carry out CPU and regulates when the powder source management mode of CPU is not battery saving mode.
4. the battery saving mode implementation method of a computer system is characterized in that comprising following step:
The 1st step judges whether the powder source management mode of CPU is battery saving mode;
The 2nd step when the powder source management mode of CPU is battery saving mode, converts battery saving mode to temperature;
The 3rd step when the powder source management mode of CPU is battery saving mode, is measured current system temperature by the temperature sensing circuit of innernal CPU setting;
The 4th step, temperature value and the higher temperature in the current system temperature obtained according to conversion CPU battery saving mode carry out the CPU adjusting, to realize electricity-saving function, the described CPU that carries out regulates the regulation rate that is meant by the System on Chip/SoC of adjusting computer system, thereby reduces CPU speed.
5. the battery saving mode implementation method of computer system as claimed in claim 4 is characterized in that:
Above-mentioned the 1st step is meant that judging is the step of battery saving mode when the powder source management mode of CPU is best battery mode or largest battery pattern.
6. the battery saving mode implementation method of computer system as claimed in claim 4 is characterized in that:
If judge in above-mentioned the 1st step that the powder source management mode of CPU does not carry out CPU and regulates when being not battery saving mode.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050046926 | 2005-06-01 | ||
| KR1020050046926A KR20060125102A (en) | 2005-06-01 | 2005-06-01 | Computer system with power save capability and method for implementing power save mode in a computer system |
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| CN1873587A CN1873587A (en) | 2006-12-06 |
| CN100394358C true CN100394358C (en) | 2008-06-11 |
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| CNB2006100924611A Expired - Fee Related CN100394358C (en) | 2005-06-01 | 2006-06-01 | Computer system with power-saving capability and method for implementing power-saving mode in computer system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101946224A (en) * | 2008-02-15 | 2011-01-12 | 惠普开发有限公司 | Changing power states of data handling devices to meet redundancy criterion |
| CN103064484B (en) * | 2011-10-24 | 2016-04-13 | 神讯电脑(昆山)有限公司 | Electronic system and preheat method and apparatus |
| KR102256136B1 (en) * | 2021-04-14 | 2021-05-26 | 주식회사 티원엘에스 | An energy-saving computer system by controlling the power of CPU cores and controlling method therefor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10333789A (en) * | 1997-05-28 | 1998-12-18 | Nec Niigata Ltd | Computer |
| CN1352422A (en) * | 2000-11-15 | 2002-06-05 | 熊文 | Safe automatic speed regualtion computer system and method |
| CN2577326Y (en) * | 2002-08-26 | 2003-10-01 | 蓝天电脑股份有限公司 | Notebook type computer with temperature-regulating function |
| CN1498439A (en) * | 2002-01-29 | 2004-05-19 | ������������ʽ���� | Power controller, power control method, information processor and power control program |
-
2005
- 2005-06-01 KR KR1020050046926A patent/KR20060125102A/en active Search and Examination
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- 2006-06-01 CN CNB2006100924611A patent/CN100394358C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10333789A (en) * | 1997-05-28 | 1998-12-18 | Nec Niigata Ltd | Computer |
| CN1352422A (en) * | 2000-11-15 | 2002-06-05 | 熊文 | Safe automatic speed regualtion computer system and method |
| CN1498439A (en) * | 2002-01-29 | 2004-05-19 | ������������ʽ���� | Power controller, power control method, information processor and power control program |
| CN2577326Y (en) * | 2002-08-26 | 2003-10-01 | 蓝天电脑股份有限公司 | Notebook type computer with temperature-regulating function |
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| KR20060125102A (en) | 2006-12-06 |
| CN1873587A (en) | 2006-12-06 |
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