CN105824377A - System temperature control method and mobile terminal - Google Patents
System temperature control method and mobile terminal Download PDFInfo
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- CN105824377A CN105824377A CN201510553082.7A CN201510553082A CN105824377A CN 105824377 A CN105824377 A CN 105824377A CN 201510553082 A CN201510553082 A CN 201510553082A CN 105824377 A CN105824377 A CN 105824377A
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Abstract
The embodiment of the invention provides a system temperature control method and a mobile terminal. The system temperature control method comprises the following steps: obtaining the temperature of a central processing unit (CPU); when the temperature of the CPU achieves a temperature threshold, reducing the running frequency of the CPU, and enabling an application program to stop regulating the running frequency of the CPU. According to the embodiment of the invention, in the process of reducing the running frequency of the CPU, a common interface of a CPU frequency regulating module is closed, a frequency regulating request from other modules is cut off, and other applications are prohibited from scheduling the CPU frequency regulating module, so that the device can perform majority control on the CPU frequency regulating module, the fluctuation of CPU frequency is reduced, and further the temperature of the CPU can be effectively controlled.
Description
Technical field
The present invention relates to field of computer technology, particularly relate to a kind of system temperature control method and a kind of mobile terminal.
Background technology
Along with the development of smart mobile phone, check figure and the performance of CPU (CentralProcessingUnit, central processing unit) are more and more powerful, while bring ultimate attainment performance to experience to user, have also been introduced many problems.System heat generation and battery consumption this two big side effect too fast allow comprehensive experience of user have a greatly reduced quality, and people pursue light, thin outward appearance particularly now, bring challenge to especially the performance of system and heat radiation.
At present, the heating problem for smart mobile phone can use temperature rise control strategy, is reduced the frequency of CPU after i.e. the temperature at CPU reaches certain threshold value by CPU FM module.
But, carry out according to above-mentioned temperature rise control strategy temperature controlled during, if enabling or manipulate a certain application program, this application program may change the frequency of CPU, so, the frequency regulation of CPU may arise that situation as shown in Figure 1, constantly switches between high frequency is with low frequency.So switching is in addition to causing frequency reducing cooling-down effect inconspicuous, also increases the expense of CPU itself.
Therefore, a technical problem that those skilled in the art urgently solve is presently required exactly: how to improve the effect that system temperature controls.
Summary of the invention
The purpose of the embodiment of the present invention is to provide a kind of system temperature control method, it is possible to increase the effect that system temperature controls.
Accordingly, the embodiment of the present invention additionally provides a kind of mobile terminal, in order to ensure realization and the application of said method.
In order to solve the problems referred to above, the invention discloses a kind of system temperature control method, it is characterised in that including:
Obtain the temperature of central processor CPU；
When the temperature of described CPU reaches temperature threshold, reduce the running frequency of described CPU, and stop the application program regulation to the running frequency of described CPU.
The embodiment of the present invention additionally provides a kind of mobile terminal, including:
Temperature acquiring unit, for obtaining the temperature of central processor CPU；
Control unit, for when the temperature of described CPU reaches temperature threshold, reduces the running frequency of described CPU, and stops the application program regulation to the running frequency of described CPU.
Compared with prior art, the embodiment of the present invention includes advantages below:
The embodiment of the present invention is by during reducing CPU running frequency, cut off the frequency modulation from other modules to ask, forbid the running frequency of other application programs regulation CPU, such that it is able to reach the absolute control to CPU running frequency of this device, reduce the fluctuation of cpu frequency, and then can more effectively the temperature of CPU be controlled.
Accompanying drawing explanation
Fig. 1 is the CPU running frequency change curve schematic diagram in prior art during system temperature control；
Fig. 2 is the flow chart of steps of a kind of system temperature control method embodiment of the present invention；
Fig. 3 is the CPU running frequency change curve schematic diagram in the present invention during system temperature control；
Fig. 4 is the switching schematic diagram in the present invention between normal consistency module and temperature rise control scheduler module；
Fig. 5 is the flow chart of steps of the embodiment of the method for a kind of running frequency controlling CPU FM module reduction CPU in the present invention；
Fig. 6 is the structured flowchart of a kind of mobile terminal embodiment of the present invention；
Fig. 7 is the structured flowchart of a kind of control unit in the present invention.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, the present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Inventor studies and finds that CPU FM module derives the interface used to user's space is disclosed, as long as the consumer process possessing System Privileges can control CPU FM module by this interface.Prior art system is carried out temperature controlled during, there is no locked FM module so that other user programs can also continue to change cpu frequency, thus affects overall temperature rise regulation whole structure.According to present temperature rise control strategy, the frequency regulation of CPU there will be situation as shown in Figure 1, constantly switches between high frequency is with low frequency.So switching is in addition to causing frequency reducing cooling-down effect inconspicuous, also increases the expense of CPU itself.
Based on this, the embodiment of the invention discloses techniques below scheme, the effect that system temperature controls can be improved.
With reference to Fig. 2, it is shown that the flow chart of steps of a kind of system temperature control method embodiment of the present invention, specifically may include steps of:
Step 201, obtains the temperature of CPU.
In the embodiment of the present invention, this system temperature controls device (being called for short this device) regularly or can obtain the temperature of CPU in real time, specifically can be at CPU built-in temperature sensor, by this temperature sensor, in real time or cpu temperature information is fed back to this device by timing.
This device can be previously provided with temperature threshold to control whether this device opens the control of the temperature to system.This temperature threshold can be to arrange based on experience value, concrete, can be that the variations in temperature situation of the variations in temperature situation previously according to CPU and user contact site determines this temperature threshold.As a example by mobile phone, can comprehensively determine temperature threshold according to the temperature of mobile phone CPU with the situation of change of running frequency and the temperature variations of user and mobile phone contact site.
When this device monitoring to the temperature of CPU reach said temperature threshold value time, this device is switched to temperature rise control scheduling method by normal consistency pattern, performs step 202.When the temperature of CPU is not reaching to said temperature threshold value, this device maintains normal consistency pattern, is not controlled the running frequency of CPU.
Step 202, reduces the running frequency of CPU, and stops the application program regulation to the running frequency of CPU.
In this step, this device can reduce the running frequency of CPU by controlling CPU FM module.Existing CPU FM module may be used for regulating the running frequency of CPU, it is also possible to for monitoring the load of CPU, the running frequency etc. of monitoring CPU.
When the temperature of CPU reaches temperature threshold, switch to temperature rise control scheduling method, control CPU FM module and reduce the running frequency of CPU, to reduce the temperature of CPU, simultaneously close off the CPU FM module common interface to application program, specifically can pin this CPU FM module at system kernel layer, namely close the CPU FM module common interface to application program, its frequency modulation cut off from other modules is made to ask, forbid other application program schedulings CPU FM module, reach the absolute control to CPU FM module of this device, reduce the fluctuation of cpu frequency, thus more effectively the temperature of CPU is controlled.
CPU running frequency after regulating according to this step changes as shown in Figure 3, the change of CPU running frequency changes the most frequently, and decline in notch cuttype, the regulation of such frequency can more efficiently act on temperature regulation, control to low-limit frequency simultaneously can reach ultimate attainment equalization performance and heating contradiction on ultra-thin smart handset, improves the comprehensive satisfaction of user.
Under temperature rise control scheduling method, when the temperature control that the temperature of CPU is reduced to preset releases point, switch to normal consistency pattern, perform step 203.
Step 203, when the temperature of CPU releases point less than or equal to the temperature control preset, stops to reduce the running frequency of CPU, and accepts the application program regulation to the running frequency of CPU.
When the temperature of CPU is reduced to temperature control releasing point, switches to normal consistency pattern, now stop to reduce the running frequency of CPU, and open the CPU FM module common interface to application program, namely recover the normal operating condition to CPU.
The embodiment of the present invention is by during reducing CPU running frequency, close the common interface of CPU FM module, cut off the frequency modulation from other modules to ask, forbid other application program schedulings CPU FM module, such that it is able to reach the absolute control to CPU FM module of this device, reduce the fluctuation of cpu frequency, and then can more effectively the temperature of CPU be controlled.
And, release point by arranging temperature threshold and temperature control, it is achieved that freely switching between temperature rise control scheduling method and normal consistency pattern, as shown in Figure 4.Effectively solved the CPU that legacy system scheduling strategy often occurs to generate heat the contradictory problems paused with performance card by above method, improve comprehensively experiencing of user further, save mobile phone power consumption simultaneously, improve flying power.
In another embodiment of the invention, the process of running frequency of CPU is reduced as it is shown in figure 5, may include that
Step 501, obtains current operation frequency value and the load of CPU of CPU.
In the present embodiment, in the system start-up starting stage, this device is in normal consistency module, and CPU is properly functioning, and when cpu load increases, when running frequency increases, cpu temperature raises.When cpu temperature reaches default temperature threshold, this device is switched to temperature rise control scheduling method by normal consistency pattern, is first shut off the CPU FM module common interface to application program, is then controlled CPU running frequency.Now, this device is first carried out this step, obtains the current running frequency value of CPU and the current load of CPU by CPU scheduler module.
Step 502, according to CPU can running frequency value, the load of CPU and the current operation frequency value of CPU, determine frequency adjustment value.
This device can be previously according to empirical value or according to frequency adjustment value corresponding under experiment detection acquisition CPU different conditions, specifically can according to different experimental conditions CPU is set can running frequency value, the load of CPU and the current operation frequency value of CPU, then obtain under different situations the temperature that not only can lower CPU but also the optimal frequency adjustment value of running frequency that can limit CPU not too much by experiment.After obtaining the above results, above-mentioned corresponding relation can be stored by this device, in this step, and the running frequency value current for CPU that can directly obtain according to upper step and the current load of CPU, the frequency values that itself can run in conjunction with this CPU, determines the frequency adjustment value of correspondence.
Step 503, regulates the running frequency value of CPU to frequency adjustment value.
After determining frequency adjustment value, the regulating frequency value of CPU can be write CPU FM module as running frequency value by this step, thus controls CPU FM module and regulate the running frequency value of CPU to regulating frequency value.
The running frequency of CPU is adjusted by CPU FM module, can include the call request stopping new application program, or stop meeting the pre-conditioned application program etc. being currently running.Along with the reduction of CPU running frequency, the temperature of CPU also will decrease.
But, when the regulating frequency value of CPU is unreasonable, the situations such as cpu load exception increase may be caused, therefore, the process of the running frequency that this control CPU FM module reduces CPU can further include following steps:
Step 504, it is thus achieved that the load of CPU, it is judged that whether the load of CPU reaches abnormal increase condition.
The load of current CPU can be obtained by CPU FM module.
It is abnormal that this step need to judge to reduce the whether appearance that CPU runs, and can be to judge whether the load of CPU the situation that exception increases occurs, can be specifically whether the load increase value judging CPU meets pre-conditioned.
The most then perform step 505～506, if it is not, then perform step 507.
Step 505, frequency of amendment regulated value.
Starting the correction to frequency adjustment value, this makeover process can regulate according to cpu load situation, can be increased according to default stepping by frequency adjustment value, or increases to the running frequency value etc. of a gear.
Step 506, regulates the running frequency value of CPU to revised frequency adjustment value.
After determining revised frequency adjustment value, control CPU FM module and the running frequency value of CPU is regulated to revised frequency adjustment value.During this regulation, continue executing with step 504.
Step 507, it is judged that whether the temperature of CPU is reduced to temperature control and releases point.
During regulation, can judge that the temperature control whether temperature of CPU is reduced to preset releases point, the most then perform step 508 in real time or regularly, if it is not, then continue executing with step 502 to carry out next step regulation and control.
Step 508, stops to reduce the running frequency of CPU, and opens the CPU FM module common interface to application program.
When temperature CPU being detected is reduced to temperature control releasing point, this device switches back into normal consistency pattern, stops reducing the running frequency of CPU, and opens the CPU FM module common interface to application program.
It should be noted that, for embodiment of the method, in order to be briefly described, therefore it is all expressed as a series of combination of actions, but those skilled in the art should know, the embodiment of the present invention is not limited by described sequence of movement, because according to the embodiment of the present invention, some step can use other orders or carry out simultaneously.Secondly, those skilled in the art also should know, embodiment described in this description belongs to preferred embodiment, necessary to the involved action not necessarily embodiment of the present invention.
With reference to Fig. 6, it is shown that the structured flowchart of a kind of mobile terminal of the present invention, specifically can include such as lower unit:
Temperature acquiring unit 601, for obtaining the temperature of central processor CPU.
Control unit 602, for when the temperature of CPU reaches temperature threshold, reduces the running frequency of CPU, and stops the application program regulation to the running frequency of described CPU..
In the embodiment of the present invention, this mobile terminal passes through said units during reducing CPU running frequency, close the common interface of CPU FM module, cut off the frequency modulation from other modules to ask, forbid other application program schedulings CPU FM module, such that it is able to reach the absolute control to CPU FM module of this device, reduce the fluctuation of cpu frequency, and then can more effectively the temperature of CPU be controlled.
In another embodiment, this control unit 602, it is additionally operable to, when the temperature of CPU releases point less than or equal to temperature control, stop to reduce the running frequency of CPU, and accept the regulation to the running frequency of described CPU of the described application program.
In another embodiment, as it is shown in fig. 7, this control unit 602 may further include:
Obtain subelement 701, for obtaining current operation frequency value and the load of CPU of CPU.
Determine subelement 702, for according to CPU can running frequency value, the load of CPU and the current operation frequency value of CPU, determine frequency adjustment value.
Control subelement 703, for regulating the running frequency value of CPU to frequency adjustment value.
This control unit 602 can also include:
Obtain subelement 704, for obtaining the load of CPU.
Revise subelement 705, be used for when the load of CPU reaches extremely to increase condition, frequency of amendment regulated value.
This control subelement 703, is additionally operable to regulate to revised frequency adjustment value the running frequency value of CPU.
In another embodiment, this device can also include:
Temperature arranges unit, for determining temperature threshold according to the variations in temperature situation of CPU and the variations in temperature situation of user contact site.
For device embodiment, due to itself and embodiment of the method basic simlarity, so describe is fairly simple, relevant part sees the part of embodiment of the method and illustrates.
Each embodiment in this specification all uses the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, and between each embodiment, identical similar part sees mutually.
Those skilled in the art are it should be appreciated that the embodiment of the embodiment of the present invention can be provided as method, device or computer program.Therefore, the form of the embodiment in terms of the embodiment of the present invention can use complete hardware embodiment, complete software implementation or combine software and hardware.And, the embodiment of the present invention can use the form at one or more upper computer programs implemented of computer-usable storage medium (including but not limited to disk memory, CD-ROM, optical memory etc.) wherein including computer usable program code.
The embodiment of the present invention is to describe with reference to method, terminal unit (system) and the flow chart of computer program according to embodiments of the present invention and/or block diagram.It should be understood that can be by the flow process in each flow process in computer program instructions flowchart and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.These computer program instructions can be provided to produce a machine to the processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing terminal equipment so that the instruction performed by the processor of computer or other programmable data processing terminal equipment is produced for realizing the device of function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and can guide in the computer-readable memory that computer or other programmable data processing terminal equipment work in a specific way, the instruction making to be stored in this computer-readable memory produces the manufacture including command device, and this command device realizes the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded on computer or other programmable data processing terminal equipment, make to perform sequence of operations step on computer or other programmable terminal equipment to produce computer implemented process, thus the instruction performed on computer or other programmable terminal equipment provides the step of the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame for realization.
Although having been described for the preferred embodiment of the embodiment of the present invention, but those skilled in the art once know basic creative concept, then these embodiments can be made other change and amendment.So, claims are intended to be construed to include preferred embodiment and fall into all changes and the amendment of range of embodiment of the invention.
Finally, it can further be stated that, in this article, the relational terms of such as first and second or the like is used merely to separate an entity or operation with another entity or operating space, and not necessarily requires or imply the relation or sequentially that there is any this reality between these entities or operation.And, term " includes ", " comprising " or its any other variant are intended to comprising of nonexcludability, so that include that the process of a series of key element, method, article or terminal unit not only include those key elements, but also include other key elements being not expressly set out, or also include the key element intrinsic for this process, method, article or terminal unit.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that there is also other identical element in including the process of described key element, method, article or terminal unit.
Above to a kind of system temperature control method provided by the present invention and a kind of mobile terminal, it is described in detail, principle and the embodiment of the present invention are set forth by specific case used herein, and the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention；Simultaneously for one of ordinary skill in the art, according to the thought of the present invention, the most all will change, in sum, this specification content should not be construed as limitation of the present invention.
Claims (10)
1. a system temperature control method, it is characterised in that including:
Obtain the temperature of central processor CPU；
When the temperature of described CPU reaches temperature threshold, reduce the running frequency of described CPU, and stop the application program regulation to the running frequency of described CPU.
Method the most according to claim 1, it is characterised in that described method also includes:
When the temperature of described CPU releases point less than or equal to temperature control, stop to reduce the running frequency of described CPU, and accept the regulation to the running frequency of described CPU of the described application program.
Method the most according to claim 1, it is characterised in that the running frequency of the described CPU of described reduction, including:
Obtain current operation frequency value and the load of described CPU of described CPU；
According to described CPU can running frequency value, the load of described CPU and the current operation frequency value of described CPU, determine frequency adjustment value；
The running frequency value of described CPU is regulated to described frequency adjustment value.
Method the most according to claim 3, it is characterised in that the running frequency of the described CPU of described reduction, also includes:
Obtain the load of described CPU；
When the load of described CPU reaches extremely to increase condition, revise described frequency adjustment value；
The running frequency value of described CPU is regulated to revised described frequency adjustment value.
Method the most as claimed in any of claims 1 to 4, it is characterised in that before the running frequency of the described CPU of described reduction, also include:
Variations in temperature situation and the variations in temperature situation of user contact site according to described CPU determine described temperature threshold.
6. a mobile terminal, it is characterised in that including:
Temperature acquiring unit, for obtaining the temperature of central processor CPU；
Control unit, for when the temperature of described CPU reaches temperature threshold, reduces the running frequency of described CPU, and stops the application program regulation to the running frequency of described CPU.
Mobile terminal the most according to claim 6, it is characterised in that
Described control unit, is additionally operable to, when the temperature of described CPU releases point less than or equal to temperature control, stop to reduce the running frequency of described CPU, and accept the regulation to the running frequency of described CPU of the described application program.
Mobile terminal the most according to claim 7, it is characterised in that described control unit includes:
Obtain subelement, for obtaining current operation frequency value and the load of described CPU of described CPU；
Determine subelement, for according to described CPU can running frequency value, the load of described CPU and the current operation frequency value of described CPU, determine frequency adjustment value；
Control subelement, for regulating the running frequency value of described CPU to described frequency adjustment value.
Mobile terminal the most according to claim 8, it is characterised in that described control unit also includes:
Obtain subelement, for obtaining the load of described CPU；
Revise subelement, for when the load of described CPU reaches extremely to increase condition, revising described frequency adjustment value；
Described control subelement, is additionally operable to regulate to revised described frequency adjustment value the running frequency value of described CPU.
10. according to the mobile terminal described in any one in claim 6 to 9, it is characterised in that described device also includes:
Temperature arranges unit, for determining described temperature threshold according to the variations in temperature situation of described CPU and the variations in temperature situation of user contact site.
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| CN107329547A (en) * | 2017-07-24 | 2017-11-07 | 奇酷互联网络科技（深圳）有限公司 | A kind of temperature controlled method and apparatus and mobile terminal |
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| CN110908416A (en) * | 2019-12-30 | 2020-03-24 | 高鑫（横琴）技术服务有限公司 | Low-power-consumption type Internet of things intelligent equipment centralized control terminal and GPU temperature control method thereof |
| CN111552360A (en) * | 2019-02-25 | 2020-08-18 | 研祥智能科技股份有限公司 | Industrial personal computer cooling method and device, computer equipment and storage medium |
| CN113138854A (en) * | 2021-04-19 | 2021-07-20 | 北京字节跳动网络技术有限公司 | Terminal control method and device, terminal and storage medium |
| CN113589864A (en) * | 2021-07-29 | 2021-11-02 | 宁波三星医疗电气股份有限公司 | Temperature control method of energy controller |
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| CN113138854A (en) * | 2021-04-19 | 2021-07-20 | 北京字节跳动网络技术有限公司 | Terminal control method and device, terminal and storage medium |
| CN113589864A (en) * | 2021-07-29 | 2021-11-02 | 宁波三星医疗电气股份有限公司 | Temperature control method of energy controller |
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| CN105824377B (en) | 2019-10-15 |
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