CN105739668A - Power management method and power management system of notebook computers - Google Patents
Power management method and power management system of notebook computers Download PDFInfo
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- CN105739668A CN105739668A CN201610040909.9A CN201610040909A CN105739668A CN 105739668 A CN105739668 A CN 105739668A CN 201610040909 A CN201610040909 A CN 201610040909A CN 105739668 A CN105739668 A CN 105739668A
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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
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/324—Power saving characterised by the action undertaken by lowering clock frequency
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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
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/3293—Power saving characterised by the action undertaken by switching to a less power-consuming processor, e.g. sub-CPU
Abstract
The invention discloses a power management method and power management system of notebook computers. According to the power management method of the notebook computers, when any one parameter value in the parameter values of multiple notebook computers exceeds a preset range, the frequencies of CPUs and GPUs are reduced. The power management system of the notebook computers comprises a sensing unit and a control unit which are mutually connected; the sensing unit is configured for sensing the parameter values of multiple notebook computers and sending the sensed parameter values to the control unit; the control unit is configured for receiving the parameter values sent by the sensing unit, analyzing and judging the parameter values and then controlling the frequencies of the CPUs and the GPUs of the notebook computers. According to the method and the system, the existing power resource configurations can be applied flexibly; under the condition of not damaging the hardware of the notebook computers, the various demands of users when the notebook computers are used are satisfied; the notebook computers are prevented from appearing abnormal shutdown, delay or other unpredictable errors; and the user satisfaction degree is improved.
Description
Technical field
The present invention relates to notebook computer field, particularly to method for managing power supply and the power-supply management system of a kind of notebook computer.
Background technology
In the market that the demand of the notebook computer of height configuration is increasing, and the power consumption of the notebook computer of height configuration is generally all higher, particularly when notebook computer processes large-scale application program (image procossing of big game or complexity), required power consumption is all higher, but generally, if user uses the battery supporting with notebook computer to power (direct current supply pattern) to notebook computer, battery is difficult to bear or be difficult to bear higher power consumption for a long time and reduce service life or directly damage, at this moment it is possible that the abnormal shutdown of notebook computer, card or other unpredictable mistake.Even if user uses power supply adaptor to power (Alternating Current Power Supply pattern) to notebook computer, owing to notebook manufacturer is based on the consideration of cost, the power supply adaptor can being applicable under high consumption conditions can't be equipped with for its notebook computer sold, so in the case, notebook computer carries out long-time high power consumption and runs, decrease the service life of power supply adaptor or make it directly damage, also likely can make notebook computer that abnormal shutdown occurs, card or other unpredictable mistake, prior art can not fully meet user and use the demand of notebook computer for these reasons, poor user experience.Therefore, need method for managing power supply and the power-supply management system of a kind of notebook computer, make notebook computer that existing electric power resource can be used flexibly to configure, when not damaging the battery of notebook computer, power supply adaptor and other hardware, meet user and use the multiple demand of notebook computer, improve user satisfaction.
Summary of the invention
It is an object of the invention to provide the method for managing power supply of a kind of notebook computer and power-supply management system, make notebook computer that existing electric power resource can be used flexibly to configure, make to avoid notebook computer automatic shutdown or card when running large-scale application program, meet user and use the multiple demand of notebook computer, improve user satisfaction.
To achieve these goals, at the method for managing power supply that the invention provides a kind of notebook computer, in the parameter values of multiple described notebook computers, arbitrary parameter values exceeds scope set in advance, then reduce the frequency of CPU and GPU.
As preferably, comprising the steps of
S1, judge the parameter values of multiple described notebook computer, if any one of parameter values is not in scope set in advance, then reduces the frequency of CPU and GPU, if any one of parameter values is in scope set in advance, again judge multiple described parameter values；
S2, if CPU and GPU reduces frequency, it is judged that multiple described parameter values, if each described parameter values is all in scope set in advance, recovers the frequency before reducing CPU and GPU frequency.
As preferably, further comprising the steps of: S0 before step S1, it is judged that described notebook computer is in Alternating Current Power Supply pattern or direct current supply pattern；And step S1 farther includes:
S11, under described direct current supply pattern, judge the battery temperature value of described notebook computer, battery current output valve and battery maximum power dissipation value, if any one above-mentioned value is not in scope set in advance, then reduce the frequency of CPU and GPU, if above-mentioned value is all in scope set in advance, again judge above-mentioned value；
S12, under described Alternating Current Power Supply pattern, judge the current input value of described notebook computer, electric current input maximum, average power consumption value and maximum power dissipation value, if any one above-mentioned value is not in scope set in advance, then reduce the frequency of CPU and GPU, if above-mentioned value is all in scope set in advance, again judge above-mentioned value.
As preferably, step S2 farther includes:
S21, under described direct current supply pattern, if CPU and GPU reduces frequency, it is judged that the battery temperature value of described notebook computer, battery current output valve and battery maximum power dissipation value, if above-mentioned value is all in scope set in advance, recover the frequency before reducing CPU and GPU frequency；
S22, under described Alternating Current Power Supply pattern, if CPU and GPU reduces frequency, it is judged that the current input value of described notebook computer, electric current input maximum, average power consumption value and maximum power dissipation value, if above-mentioned value is all in scope set in advance, recover the frequency before reducing CPU and GPU frequency.
As preferably, when the internal memory of described notebook computer or the temperature of hard disk be not in scope set in advance, then reduce the frequency of CPU and GPU；If CPU and GPU reduces frequency, will again judge the temperature of described internal memory or hard disk.
As preferably, if the temperature of described internal memory or hard disk is all in scope set in advance, recover the frequency before reducing CPU and GPU frequency.
Present invention also offers the power-supply management system of a kind of notebook computer, including interconnective detecting unit and control unit, described detecting unit is configured to detect the parameter values of multiple described notebook computers and sends its described parameter values detected to described control unit, described control unit is configured to receive the described parameter values that described detecting unit sends the frequency to CPU and the GPU controlling described notebook computer after described parameter values analysis judgement.
As preferably, described detecting unit includes battery detecting unit, and described battery detecting unit is connected with the battery of described notebook computer and described control unit respectively, and described battery detecting cell location is detecting battery operating parameter；Described battery detecting unit also includes the depositor for depositing described battery operating parameter, and described control unit controls the frequency of described CPU and GPU after reading described battery operating parameter from described depositor and analyzing judgement；
Described battery operating parameter includes battery temperature value, battery current output valve and battery maximum power dissipation value.
As preferably, described detecting unit also includes systems scan unit, described systems scan unit is connected with described control unit, described systems scan cell location is detect the current input value of described notebook computer, electric current input maximum, average power consumption value and maximum power dissipation value, and sends, to described control unit, the described parameter values detected so that described control unit analysis controls the frequency of described CPU and GPU after judging.
As preferably, described detecting unit also includes memory hard disk detecting unit, described memory hard disk detecting unit is connected with described control unit, described memory hard disk detecting unit is configured to the temperature value of internal memory and the hard disk detecting described notebook computer, and described temperature value is sent to described control unit, described control unit controls the frequency of described CPU and GPU after described temperature value analysis is judged.
The beneficial effects of the present invention is: make notebook computer that existing electric power resource can be used flexibly to configure, when not damaging the battery of notebook computer, power supply adaptor and other hardware, meet user and use the multiple demand of notebook computer, avoid notebook computer that abnormal shutdown, Ka Dun or other unpredictable mistake occur, thus improving user satisfaction.
Accompanying drawing explanation
Fig. 1 is the main flow schematic diagram of the method for managing power supply of the notebook computer of the embodiment of the present invention；
Fig. 2 is the structural representation of the power-supply management system of the notebook computer of the embodiment of the present invention.
Description of reference numerals
1-control unit 2-battery detecting unit 3-systems scan unit 4-battery
Detailed description of the invention
For making those skilled in the art be more fully understood that the present invention, with reference to the accompanying drawings embodiments of the invention are described in detail.
Embodiment one
The method for managing power supply of a kind of notebook computer of embodiments of the invention includes, and in the parameter values of multiple notebook computers, arbitrary parameter values exceeds scope set in advance, then reduce the frequency of CPU and GPU.The parameter values of above-mentioned notebook computer includes the first parameter values and the second parameter values, and wherein the first parameter values includes with electric power resource is in close relations: the battery temperature value of notebook computer, battery current output valve, battery maximum power dissipation value；Also include the current input value of notebook computer, electric current input maximum, average power consumption value and maximum power dissipation value；Second parameter values includes: the rated current and rated power etc. of the battery rated current of notebook computer and rated power, adapter.If the arbitrary parameter values in the parameter values of notebook computer particularly the first parameter values exceeds scope set in advance, then reduce the frequency of CPU and GPU.It is noted herein that, CPU and GPU is the main parts size of notebook computer, the height of its frequency is directly related with the parameter values of notebook computer, such as CPU and GPU is in altofrequency in short time period and runs, then the current input value of notebook computer ramps, if using battery 4 to power, battery temperature ramps (long-time altofrequency operation can cause battery 4 persistent fever and then damage battery 4).Accordingly, if the frequency of CPU and GPU maintains low level, then the parameters numerical value of notebook computer also can maintain within normal range.
As shown in Figure 1, the method for managing power supply of above-mentioned notebook computer comprises the steps of S1 further, judge the parameter values of multiple notebook computer, if any one parameter values is not in scope set in advance, then reduce the frequency of CPU and GPU, if any one parameter values is in scope set in advance, again judging multiple parameter values (being generally circulatory monitoring to judge), if any one parameter values is all in scope set in advance, the frequency of CPU and GPU is constant；S2, if CPU and GPU reduces frequency, judge multiple parameter values (being generally circulatory monitoring to judge), if each parameter values is all in scope set in advance, recover the frequency before reducing CPU and GPU frequency, then can again carry out step S1 (step S1 and step S2 circulation carries out).The scope set in advance of each parameter values of above-mentioned notebook computer is all draw have higher reliability according to the hardware parameter of notebook computer, historical data and empirical data analysis.
In order to the multi-level power supply to notebook computer is managed, before step S1, further comprise the steps of: S0, it is judged that notebook computer is in Alternating Current Power Supply pattern or direct current supply pattern；And step S1 farther includes: S11, under direct current supply pattern (usually battery 4 is powered for notebook computer), judge the battery temperature value of notebook computer, battery current output valve and battery maximum power dissipation value, if any one above-mentioned value not in scope set in advance or in stipulated time section not in scope set in advance, in order to protect hardware security, then reduce the frequency of CPU and GPU, if above-mentioned value is all in scope set in advance, again judge above-mentioned value (being generally circulatory monitoring to judge), in addition it should be noted that, if battery is reported to the police due to many reasons also can reduce the frequency of CPU and GPU；S12; under Alternating Current Power Supply pattern (usually adapter is that notebook computer is when powering); judge the current input value of notebook computer, electric current input maximum, average power consumption value and maximum power dissipation value; if any one above-mentioned value not in scope set in advance or in stipulated time section not in scope set in advance; in order to protect hardware security; then reduce the frequency of CPU and GPU, if above-mentioned value is all in scope set in advance, again judge above-mentioned value (being generally circulatory monitoring to judge).Step S2 farther includes: S21, under direct current supply pattern, if CPU and GPU reduces frequency, judge the battery temperature value of notebook computer, battery current output valve and battery maximum power dissipation value, if above-mentioned value all in scope set in advance or in stipulated time section in scope set in advance, then recover to reduce the frequency before CPU and GPU frequency；S22, under Alternating Current Power Supply pattern, if CPU and GPU reduces frequency, judge the current input value of notebook computer, input current maximum, average power consumption value and maximum power dissipation value, if above-mentioned value all in scope set in advance or in stipulated time section in scope set in advance, then recover to reduce the frequency before CPU and GPU frequency.The confession electric resources of notebook computer has reasonably been allocated in the reduction of above-mentioned CPU and GPU frequency and recovery, it is possible to the multiple demand of reply user.
But, in order to reasonably use and better protect the hardware of notebook computer, no matter the parameter values of above-mentioned notebook computer is how many, no matter notebook computer is in Alternating Current Power Supply pattern or direct current supply pattern, when internal memory or the hard disk of notebook computer (are the critical piece of notebook computer because of internal memory and hard disk, certainly other parts also include sound card and network interface card etc., here in order to better protect hardware to select internal memory and hard disk) temperature not in scope set in advance or in stipulated time section not in scope set in advance, then reduce the frequency of CPU and GPU；If CPU and GPU reduces frequency, will again judge the temperature of internal memory or hard disk；If the temperature of internal memory or hard disk all in scope set in advance or in stipulated time section in scope set in advance, then recover to reduce the frequency before CPU and GPU frequency.
Embodiment two
A kind of power-supply management system of the notebook computer of embodiments of the invention, as shown in Figure 2, including interconnective detecting unit and control unit 1, detecting unit is configured to detect the parameter values of multiple notebook computer and sends its parameter values detected to control unit 1, control unit 1 is configured to receive the parameter values that detecting unit sends the frequency to CPU and the GPU controlling notebook computer after parameter values analysis judgement.The parameter values of above-mentioned notebook computer includes the first parameter values and the second parameter values, and the parameter values that wherein the first parameter values is relevant to electric power resource includes: the battery temperature value of notebook computer, battery current output valve, battery maximum power dissipation value；Also include the current input value of notebook computer, electric current input maximum, average power consumption value and maximum power dissipation value；Second parameter values includes: the rated current and rated power etc. of the battery rated current of notebook computer and rated power, adapter.If the arbitrary parameter values in the parameter values of notebook computer particularly the first parameter values be detected unit detecting beyond in scope set in advance or stipulated time section beyond scope set in advance, control unit 1 will reduce the frequency of CPU and GPU.It is noted herein that, CPU and GPU is the main parts size of notebook computer, the height of its frequency is directly related with the parameter values of notebook computer, such as CPU and GPU is in altofrequency in short time period and runs, then the current input value of notebook computer ramps, if using battery 4 to power, battery temperature ramps (long-time altofrequency operation can cause battery 4 persistent fever and then damage battery 4).Accordingly, if the frequency of CPU and GPU maintains low level, then the parameters numerical value of notebook computer also can maintain within normal range.
The power-supply management system of above-mentioned notebook computer is further described: detecting unit is detected the parameter values of multiple notebook computers and corresponding data is sent to control unit 1, when control unit 1 analyze and judge any one parameter values not in scope set in advance or in stipulated time section not in scope set in advance, then reduce the frequency of CPU and GPU, when control unit 1 analyze and judge any one parameter values in scope set in advance or in stipulated time section in scope set in advance, controlled unit 1 is ordered and is again detected multiple parameter values (being generally circulation detecting) by detecting unit, the frequency of CPU and GPU is not intervened by control unit 1；If CPU and GPU reduces frequency, detecting unit also will be detected multiple parameter values (being generally circulation detecting) and corresponding data will be sent to control unit 1, control unit 1 is analyzed and judges that each parameter values all then recovers the frequency before reducing CPU and GPU frequency in scope set in advance in scope set in advance or in stipulated time section, then again detecting multiple parameter values by order detecting unit, circulation carries out above-mentioned steps.The scope set in advance of each parameter values of above-mentioned notebook computer is all draw have higher reliability according to the hardware parameter of notebook computer, historical data and empirical data analysis.
Detecting unit can be detected notebook computer and be in Alternating Current Power Supply pattern (usually adapter is that notebook computer is when powering) or direct current supply pattern (when usually battery 4 is powered for notebook computer), in order to the multi-level power supply to notebook computer is managed, detecting unit can be multiple branch units, detecting the parameter values of the multiple parts including electric power system of notebook computer respectively, the data detected all are sent to control unit 1 by each branch units.
nullAs shown in Figure 2，Detecting unit includes battery detecting unit 2，Battery detecting unit 2 is connected with the battery 4 of notebook computer and control unit respectively，Under notebook computer direct current supply pattern，Battery detecting unit 2 is configured to detecting battery operating parameter，This battery operating parameter includes battery temperature value、Battery current output valve and battery maximum power dissipation value，Battery detecting unit 2 also includes the depositor for depositing battery operating parameter，Control unit 1 controls the frequency of CPU and GPU after reading battery operating parameter from depositor and analyzing judgement，If control unit 1 analyze and judge any one above-mentioned value not in scope set in advance or in stipulated time section not in scope set in advance，In order to protect hardware security，Then it will reduce the frequency of CPU and GPU，If above-mentioned value all in scope set in advance or in stipulated time section in scope set in advance; it will detect above-mentioned value (be generally circulation detecting) by order detecting unit again，In addition it should be noted that，If battery is reported to the police due to many reasons，Alarm signal can be sent to depositor by battery detecting unit 2，Control unit 1 also can reduce the frequency of CPU and GPU after reading this signal from depositor.nullDetecting unit also includes systems scan unit 3，Systems scan unit 3 is connected with control unit 1，Under notebook computer Alternating Current Power Supply pattern，Systems scan unit 3 is configured to the current input value of detecting notebook computer、Input current maximum、Average power consumption value and maximum power dissipation value，And send, to control unit 1, the data detected so that control unit 1 analyzes the frequency controlling CPU and GPU after judging，If control unit 1 analyze and judge any one above-mentioned value not in scope set in advance or in stipulated time section not in scope set in advance，In order to protect hardware security，Then it will reduce the frequency of CPU and GPU，If above-mentioned value all in scope set in advance or in stipulated time section in scope set in advance; it will detect above-mentioned value (be generally circulation detecting) by order detecting unit again.
If CPU and GPU reduces frequency, under direct current supply pattern, the detecting unit detecting battery temperature value of notebook computer, battery current output valve and battery maximum power dissipation value, if control unit 1 analyze and judge above-mentioned value all in scope set in advance or in stipulated time section all in scope set in advance, control unit 1 will be recovered to reduce the frequency before CPU and GPU frequency；Equally, if CPU and GPU reduces frequency, under Alternating Current Power Supply pattern, the detecting unit detecting current input value of notebook computer, input current maximum, average power consumption value and maximum power dissipation value, if control unit 1 analyze and judge above-mentioned value all in scope set in advance or in stipulated time section all in scope set in advance, control unit 1 will be recovered to reduce the frequency before CPU and GPU frequency.Under detecting unit and control unit 1 cooperate, CPU and GPU frequency is minimized and recovers, and that has so reasonably allocated notebook computer supplies electric resources, it is possible to the multiple demand of reply user.
Detecting unit also includes memory hard disk detecting unit, memory hard disk detecting unit is connected with control unit 1, in order to reasonably use and better protect the hardware of notebook computer, no matter the parameter values of aforementioned notebook computer is how many, no matter notebook computer is in Alternating Current Power Supply pattern or direct current supply pattern, memory hard disk detecting unit will detect the internal memory of notebook computer or hard disk (because internal memory and hard disk are the critical piece of notebook computer, certainly other parts also include sound card and network interface card etc., here in order to better protect hardware to select internal memory and hard disk) temperature value send to control unit 1, when control unit 1 analyze and judge temperature value not in scope set in advance or in stipulated time section not in scope set in advance, control unit 1 will reduce the frequency of CPU and GPU；If CPU and GPU reduces frequency, order detecting unit is detected the temperature value of internal memory or hard disk by control unit 1 again；When control unit 1 analyze and judge the temperature value of internal memory or hard disk all in scope set in advance or in stipulated time section all in scope set in advance, then it will recover the frequency before reducing CPU and GPU frequency.
Above example is only the exemplary embodiment of the present invention, is not used in the restriction present invention, and protection scope of the present invention is defined by the claims.The present invention in the essence of the present invention and protection domain, can be made various amendment or equivalent replacement by those skilled in the art, and this amendment or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (10)
1. the method for managing power supply of a notebook computer, it is characterised in that arbitrary parameter values exceeds scope set in advance in the parameter values of multiple described notebook computers, then reduce the frequency of CPU and GPU.
2. the method for managing power supply of notebook computer according to claim 1, it is characterised in that comprise the steps of
S1, judge the parameter values of multiple described notebook computer, if any one of parameter values is not in scope set in advance, then reduces the frequency of CPU and GPU, if any one of parameter values is in scope set in advance, again judge multiple described parameter values；
S2, if CPU and GPU reduces frequency, it is judged that multiple described parameter values, if each described parameter values is all in scope set in advance, recovers the frequency before reducing CPU and GPU frequency.
3. the method for managing power supply of notebook computer according to claim 2, it is characterised in that further comprise the steps of: S0 before step S1, it is judged that described notebook computer is in Alternating Current Power Supply pattern or direct current supply pattern；And step S1 farther includes:
S11, under described direct current supply pattern, judge the battery temperature value of described notebook computer, battery current output valve and battery maximum power dissipation value, if any one above-mentioned value is not in scope set in advance, then reduce the frequency of CPU and GPU, if above-mentioned value is all in scope set in advance, again judge above-mentioned value；
S12, under described Alternating Current Power Supply pattern, judge the current input value of described notebook computer, electric current input maximum, average power consumption value and maximum power dissipation value, if any one above-mentioned value is not in scope set in advance, then reduce the frequency of CPU and GPU, if above-mentioned value is all in scope set in advance, again judge above-mentioned value.
4. the method for managing power supply of notebook computer according to claim 3, it is characterised in that step S2 farther includes:
S21, under described direct current supply pattern, if CPU and GPU reduces frequency, it is judged that the battery temperature value of described notebook computer, battery current output valve and battery maximum power dissipation value, if above-mentioned value is all in scope set in advance, recover the frequency before reducing CPU and GPU frequency；
S22, under described Alternating Current Power Supply pattern, if CPU and GPU reduces frequency, it is judged that the current input value of described notebook computer, electric current input maximum, average power consumption value and maximum power dissipation value, if above-mentioned value is all in scope set in advance, recover the frequency before reducing CPU and GPU frequency.
5. the method for managing power supply of notebook computer according to any one of claim 1 to 4, it is characterised in that when the internal memory of described notebook computer or the temperature of hard disk be not in scope set in advance, then reduce the frequency of CPU and GPU；If CPU and GPU reduces frequency, will again judge the temperature of described internal memory or hard disk.
6. the method for managing power supply of notebook computer according to claim 5, it is characterised in that if the temperature of described internal memory or hard disk is all in scope set in advance, recovers the frequency before reducing CPU and GPU frequency.
7. the power-supply management system of a notebook computer, it is characterized in that, including interconnective detecting unit and control unit, described detecting unit is configured to detect the parameter values of multiple described notebook computers and sends its described parameter values detected to described control unit, described control unit is configured to receive the described parameter values that described detecting unit sends the frequency to CPU and the GPU controlling described notebook computer after described parameter values analysis judgement.
8. the power-supply management system of notebook computer according to claim 7, it is characterized in that, described detecting unit includes battery detecting unit, described battery detecting unit is connected with the battery of described notebook computer and described control unit respectively, and described battery detecting cell location is detecting battery operating parameter；Described battery detecting unit also includes the depositor for depositing described battery operating parameter, and described control unit controls the frequency of described CPU and GPU after reading described battery operating parameter from described depositor and analyzing judgement；
Described battery operating parameter includes battery temperature value, battery current output valve and battery maximum power dissipation value.
9. the power-supply management system of notebook computer according to claim 7, it is characterized in that, described detecting unit also includes systems scan unit, described systems scan unit is connected with described control unit, described systems scan cell location is detect the current input value of described notebook computer, electric current input maximum, average power consumption value and maximum power dissipation value, and sends, to described control unit, the described parameter values detected so that described control unit analysis controls the frequency of described CPU and GPU after judging.
10. the power-supply management system of notebook computer according to claim 7, it is characterized in that, described detecting unit also includes memory hard disk detecting unit, described memory hard disk detecting unit is connected with described control unit, described memory hard disk detecting unit is configured to the temperature value of internal memory and the hard disk detecting described notebook computer, and described temperature value is sent to described control unit, described control unit controls the frequency of described CPU and GPU after described temperature value analysis is judged.
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| CN110221679A (en) * | 2019-04-22 | 2019-09-10 | 研祥智能科技股份有限公司 | The method that ruggedized equipment and realization ruggedized equipment work at low temperature |
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| CN111008108A (en) * | 2019-11-28 | 2020-04-14 | 联想(北京)有限公司 | Electronic device working method, electronic device and readable storage medium |
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