CN103675420B - A kind of alarm method and electronic equipment - Google Patents
A kind of alarm method and electronic equipment Download PDFInfo
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- CN103675420B CN103675420B CN201210353160.5A CN201210353160A CN103675420B CN 103675420 B CN103675420 B CN 103675420B CN 201210353160 A CN201210353160 A CN 201210353160A CN 103675420 B CN103675420 B CN 103675420B
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Abstract
The invention discloses a kind of alarm method, for the protection of system data and prolongation lifetime of system.Described method comprises: when the powering mode needs of described electronic equipment are switched to direct current DC pattern from interchange AC pattern, obtain the first instantaneous voltage value and first instantaneous current value of described battery; The internal resistance value of described battery is obtained according to described first instantaneous voltage value and described first instantaneous current value; Discharge current value needed for described electronic equipment and described internal resistance value determination voltage change; First magnitude of voltage current according to described battery and described voltage change obtain the second magnitude of voltage; Judge whether described second magnitude of voltage is not more than the first voltage threshold; When described second magnitude of voltage is not more than described first voltage threshold, produce the first warning information.The invention also discloses the electronic equipment for realizing described method.
Description
Technical field
The present invention relates to electronic applications, particularly a kind of alarm method and electronic equipment.
Background technology
On high performance notebook computer product, under the AC pattern of powering with ACAdapter (AC adapter), the power consumption of system can be even larger up to 150W.But due to the restriction of battery backup capability, under the pattern that DC powers, the maximum continuous discharge ability of current battery is about about 60W, so in a dc mode, ACPI (advanced configuration and power-management interface) is needed to carry out the performance of restriction system, to reduce power consumption to the discharge capability making system power dissipation be no more than battery, ensure the safety of battery.
But system adjusts to DC pattern from AC high-performance, probably need the time of 20ms, need battery to support high power discharge in this period of time.If electric current is excessive and cause voltage drop excessive during this period; battery may carry out safeguard protection, system may be caused to occur unexpected Shutdown (shutdown), so not only may make loss of data; and the serviceable life of equipment can be reduced, concerning very unfavorable equipment.
To this, existing solution 1: adopt more battery core (Cell) quantity to design battery.Such as the battery of 6Cell is changed to 8Cell or 9Cell, can high power discharge be supported, guarantee that system can not Shutdown and the safety guaranteeing battery.
The shortcoming of the program is: most system, due to the problem such as restriction and weight of size, can not realize the design of more battery cores (8Cellor9Cell), use more battery cores also can increase the cost of system simultaneously.
Existing solution 2: the control battery of 6Cell being done to design specification, system does suitable management design in conjunction with the specification of battery, with the safety of the operation and battery that ensure the fortune of system.Such as during system, the performance of matching system to be carried out according to the capacity of battery, such as, be set in battery capacity lower than the maximum power dissipation can being carried out restriction system after 30% by restriction system performance, system unexpected Shutdown when preventing from switching from AC to DC.
The shortcoming of the program is: because this capacity threshold of 30% calculates according to the rated capacity of new battery, when battery causes capacity attenuation owing to constantly using, when actual 30%, corresponding capacity will constantly reduce, corresponding discharge capability also reduces, so still may there is unexpected Shutdown for the battery employing certain hour, the program can not be dealt with problems completely.
Summary of the invention
The embodiment of the present invention provides a kind of alarm method and electronic equipment, the technical matters that when switching from AC to DC in prior art for solving, system can surprisingly be shut down, and achieves the technique effect of protection system data and prolongation lifetime of system.
A kind of alarm method, is applied to one and has battery electron equipment, said method comprising the steps of:
When the powering mode of described electronic equipment needs to be switched to direct current DC pattern from interchange AC pattern, obtain the first instantaneous voltage value and first instantaneous current value of described battery;
The internal resistance value of described battery is obtained according to described first instantaneous voltage value and described first instantaneous current value;
Discharge current value needed for described electronic equipment and described internal resistance value determination voltage change;
First magnitude of voltage current according to described battery and described voltage change obtain the second magnitude of voltage;
Judge whether described second magnitude of voltage is not more than the first voltage threshold;
When described second magnitude of voltage is not more than described first voltage threshold, produce the first warning information.
Preferably, acquisition the first instantaneous voltage value of battery and the step of the first instantaneous current value comprise: when described battery starts to discharge and/or when described battery charging is complete, obtain described first instantaneous voltage value and described first instantaneous current value.
Preferably, before the discharge current value needed for described electronic equipment and described internal resistance value determination voltage change, also step is comprised: obtain the described discharge current value needed for described electronic equipment by the controller of described electronic equipment.
Preferably, the step obtaining the second magnitude of voltage according to current the first magnitude of voltage of described battery and described voltage change comprises: deduct described voltage change with described first magnitude of voltage and obtain described second magnitude of voltage.
Preferably, after generation first warning information, also comprise step: the controller described first warning information being sent to described electronic equipment, control the power consumption of described electronic equipment to make described controller according to described first warning information.
Preferably, described first warning information is sent to the controller of described electronic equipment, comprise with the step making described controller control the power consumption of described electronic equipment according to described first warning information: described first warning information is sent to described controller, control described electronic equipment to make described controller according to described first warning information and reduce power consumption, thus make described second magnitude of voltage after reduction power consumption be greater than described first voltage threshold.
Preferably, described first voltage threshold is the safe voltage value of described battery.
Preferably, judging described second magnitude of voltage also comprises step after whether being not more than the first voltage threshold: when being greater than described first voltage threshold when described second magnitude of voltage, produce the first operational order, and described first operational order is sent to the controller of described electronic equipment, control described electronic equipment to make described controller according to described first operational order and switch to described DC pattern by described AC pattern.
A kind of electronic equipment, described electronic equipment has a battery, and described electronic equipment comprises:
First acquisition module, during for needing at the powering mode of described electronic equipment to be switched to direct current DC pattern from interchange AC pattern, obtains the first instantaneous voltage value and first instantaneous current value of described battery;
Second acquisition module, for obtaining the internal resistance value of described battery according to described first instantaneous voltage value and described first instantaneous current value;
Determination module, for the discharge current value needed for described electronic equipment and described internal resistance value determination voltage change;
3rd acquisition module, for obtaining the second magnitude of voltage according to current the first magnitude of voltage of described battery and described voltage change;
Judge module, for judging whether described second magnitude of voltage is not more than the first voltage threshold;
Generation module, for when described second magnitude of voltage is not more than described first voltage threshold, produces the first warning information.
Preferably, described first acquisition module specifically for obtaining described first instantaneous voltage value and described first instantaneous current value when described battery starts to discharge and/or when described battery charging is complete.
Preferably, described second acquisition module is also for obtaining the described discharge current value needed for described electronic equipment by the controller of described electronic equipment.
Preferably, described 3rd acquisition module obtains described second magnitude of voltage specifically for deducting described voltage change with described first magnitude of voltage.
Preferably, described electronic equipment also comprises sending module, for: the controller described first warning information being sent to described electronic equipment, controls the power consumption of described electronic equipment to make described controller according to described first warning information.
Preferably, described sending module specifically for: described first warning information is sent to described controller, control described electronic equipment to make described controller according to described first warning information and reduce power consumption, thus make described second magnitude of voltage after reduction power consumption be greater than described first voltage threshold.
Preferably, described first voltage threshold is the safe voltage value of described battery.
Preferably, described generation module also for: when described second magnitude of voltage is greater than described first voltage threshold, produce the first operational order;
Described electronic equipment also comprises sending module, for described first operational order being sent to the controller of described electronic equipment, controlling described electronic equipment switch to described DC pattern by described AC pattern to make described controller according to described first operational order.
Alarm method in the embodiment of the present invention comprises: when the powering mode needs of described electronic equipment are switched to direct current DC pattern from interchange AC pattern, obtain the first instantaneous voltage value and first instantaneous current value of described battery; The internal resistance value of described battery is obtained according to described first instantaneous voltage value and described first instantaneous current value; Discharge current value needed for described electronic equipment and described internal resistance value determination voltage change; The second magnitude of voltage is obtained according to the first current magnitude of voltage of described battery and described voltage change; Judge whether described second magnitude of voltage is not more than the first voltage threshold; When described second magnitude of voltage is not more than described first voltage threshold, produce the first warning information.
In the embodiment of the present invention, when the powering mode of described electronic equipment needs to be switched to DC pattern from AC pattern, the first instantaneous voltage value and first instantaneous current value of battery can be obtained, the internal resistance value of described battery can be obtained according to described first instantaneous voltage value and described first instantaneous current value, thus possible voltage change can be determined, if voltage change is excessive, exceed the load-bearing capacity of described battery, then can adjust accordingly described electronic equipment, because be the internal resistance value calculating described battery in real time, comparatively accurate, described electronic equipment more adequately can be avoided to be switched to DC pattern from AC pattern and may to occur unexpected situation of shutting down, ensure that the safe handling of battery, also save cost.
Accompanying drawing explanation
Fig. 1 is the main flow figure of alarm method in the embodiment of the present invention;
Fig. 2 is the structural representation of electronic equipment in the embodiment of the present invention;
Fig. 3 is the detailed structure view of electronic equipment in the embodiment of the present invention.
Embodiment
Alarm method in the embodiment of the present invention comprises: when the powering mode needs of described electronic equipment are switched to direct current DC pattern from interchange AC pattern, obtain the first instantaneous voltage value and first instantaneous current value of described battery; The internal resistance value of described battery is obtained according to described first instantaneous voltage value and described first instantaneous current value; Discharge current value needed for described electronic equipment and described internal resistance value determination voltage change; The second magnitude of voltage is obtained according to the first current magnitude of voltage of described battery and described voltage change; Judge whether described second magnitude of voltage is not more than the first voltage threshold; When described second magnitude of voltage is not more than described first voltage threshold, produce the first warning information.
In the embodiment of the present invention, when the powering mode of described electronic equipment needs to be switched to DC pattern from AC pattern, the first instantaneous voltage value and first instantaneous current value of battery can be obtained, the internal resistance value of described battery can be obtained according to described first instantaneous voltage value and described first instantaneous current value, thus possible voltage change can be determined, if voltage change is excessive, exceed the load-bearing capacity of described battery, then can adjust accordingly described electronic equipment, because be the internal resistance value calculating described battery in real time, comparatively accurate, described electronic equipment more adequately can be avoided to be switched to DC pattern from AC pattern and may to occur unexpected situation of shutting down, ensure that the safe handling of battery, also save cost.
See Fig. 1, be the main flow figure of alarm method in the embodiment of the present invention.Alarm method in the embodiment of the present invention can be applied to an electronic equipment, and described electronic equipment can have a battery.The main flow of described method is as follows:
Step 101: when the powering mode of described electronic equipment needs to be switched to direct current DC pattern from interchange AC pattern, obtain the first instantaneous voltage value and first instantaneous current value of described battery.
As shown in Figure 2, be the structural representation of electronic equipment described in the embodiment of the present invention.Described electronic equipment can comprise Switching Module 201, battery 202, controller 203 and central processing unit (CPU) 204.Wherein one end of Switching Module 201 is connected with controller 203, and other modules of the other end and system are connected.
Switching Module 201 can total current needed for real-time detection system and/or general power, and can by the total current needed for the system that detects and/or total power transfer to controller 203, controller 203 can by total battery of obtaining and/or total power transfer to battery 202.Battery 202 can determine the described electronic equipment maximum current value that system may need when carrying out AC pattern and switching to DC pattern according to the total current obtained from controller 203 and/or general power, the discharge current value namely needed for described electronic equipment.
When described electronic equipment needs to be switched to DC pattern from AC pattern, described first instantaneous voltage value of described battery and described first instantaneous current value can be obtained.In the embodiment of the present invention, just can start when discharging, to obtain described first instantaneous voltage value and described first instantaneous current value at described battery, or also can obtain described first instantaneous voltage value and described first instantaneous current value when described battery charging is complete, such as can obtain described first instantaneous voltage value and described first instantaneous current value when described battery is about to be full of electricity, just can obtain described first instantaneous voltage value when described battery just charges complete like this and described first instantaneous current value completes.
Or, in the embodiment of the present invention, also can both just start when discharging, to obtain described first instantaneous voltage value and described first instantaneous current value at described battery, also obtain described first instantaneous voltage value and described first instantaneous current value when described battery charging is complete, namely obtain the first instantaneous voltage value described in twice and described first instantaneous current value.
Step 102: the internal resistance value obtaining described battery according to described first instantaneous voltage value and described first instantaneous current value.
After described first instantaneous voltage value of acquisition and described first instantaneous current value, the internal resistance value of described battery can be obtained according to described first instantaneous voltage value and described first instantaneous current value.
Such as, described first instantaneous voltage value can represent with V1, and described first instantaneous current value can represent with I1, and the internal resistance value of described battery can represent with R, then can obtain the internal resistance value of described battery according to formula 1.Formula 1 can be as follows:
R＝V
1/I
1(1)
In the embodiment of the present invention, if obtain the first instantaneous voltage value described in twice and described first instantaneous current value, then can obtain internal resistance value respectively, after acquisition two internal resistance values, its mean value can be got as the described internal resistance value in the embodiment of the present invention, or also can select internal resistance value larger in these two internal resistance values as the described internal resistance value in the embodiment of the present invention.
Step 103: the discharge current value needed for described electronic equipment and described internal resistance value determination voltage change.
The total current needed for system that described electronic equipment can obtain according to Switching Module 201 and/or general power determine the described discharge current value needed for described electronic equipment, then just can determine the voltage drop of described electronic equipment when being switched to DC pattern from AC pattern according to described discharge current value and described internal resistance value, i.e. described voltage change.Such as, described discharge current value is with I
2represent, described voltage change represents with Δ V, can calculate described voltage change according to formula 2.Formula 2 is as follows:
ΔV＝RI
2(2)
Step 104: obtain the second magnitude of voltage according to the first current magnitude of voltage of described battery and described voltage change.
Described second magnitude of voltage can be obtained according to current described first magnitude of voltage of described battery and described voltage change after determining described voltage change, described first magnitude of voltage can be the magnitude of voltage of described battery current residual, described second magnitude of voltage can described first magnitude of voltage deduct described voltage change after obtain, described second magnitude of voltage can be that described battery may remaining magnitude of voltage after described electronic equipment is switched to DC pattern from AC pattern.Such as, described first magnitude of voltage can with V
2represent, described second magnitude of voltage can with V
3represent, then described second magnitude of voltage can obtain according to formula 3.Formula 3 can be as follows:
V
3＝V
2-ΔV(3)
Step 105: judge whether described second magnitude of voltage is not more than the first voltage threshold.
Can judge whether described second magnitude of voltage is not more than described first voltage threshold according to the characteristic of described battery.Such as, battery may quit work lower than during certain voltage value in self electric quantity, then this makes the out-of-work magnitude of voltage of battery can be set to described first voltage threshold, and described first voltage threshold also can be called the safe voltage value of described battery.Different described first voltage threshold then corresponding to it of battery may be different.
Step 106: when described second magnitude of voltage is not more than described first voltage threshold, produce the first warning information.
If judge to determine that described second magnitude of voltage is not more than described first voltage threshold, illustrate that described battery cannot normally work after the described voltage drop of generation, then the carrying scope of described battery that needs to have pointed out this voltage drop of described electronic equipment to exceed.After described first warning information of generation, described first warning information can be sent to controller 203, controller 203 can adjust the duty of described electronic equipment according to described first warning information, such as power consumption can be reduced, as should be used for reducing power consumption by closing some of them, to make described second magnitude of voltage be not more than described first voltage threshold as far as possible, described battery can not be quit work because voltage drop is too large, thus also can avoid the situation occurring unexpected shutdown as far as possible.
In the embodiment of the present invention, if judge to determine that described second magnitude of voltage is greater than described first voltage threshold, then can produce the first operational order, and described first operational order can be sent to controller 203, described electronic equipment can be controlled according to described first operational order to make controller 203 and switch to described DC pattern by described AC pattern.
Introduce the alarm method in the present invention below by way of several specific embodiment, the following examples describe several possible application scenarios of described alarm method.It should be noted that; embodiment in the present invention is only for explaining the present invention; and can not be used for limiting the present invention, every embodiment meeting inventive concept is all within protection scope of the present invention, and those skilled in the art know naturally should how thought according to the present invention be out of shape.
Embodiment one:
Described electronic equipment is mobile phone.This mobile phone has a battery.
When the powering mode of described electronic equipment needs to be switched to DC pattern from AC pattern, the first instantaneous voltage value and first instantaneous current value of described battery can be obtained.Just started when discharging, to obtain described first instantaneous voltage value and described first instantaneous current value at described battery in the present embodiment.After described first instantaneous voltage value of acquisition and described first instantaneous current value, the internal resistance value of described battery can be obtained according to formula 1.
After the described internal resistance value of acquisition, can discharge current value needed for described electronic equipment and described internal resistance value determination voltage change.
Wherein, the total current needed for system that described electronic equipment can obtain according to Switching Module 201 and/or general power determine the described discharge current value needed for described electronic equipment, then just can determine the voltage drop of described electronic equipment when being switched to DC pattern from AC pattern according to described discharge current value and described internal resistance value, i.e. described voltage change.Described voltage change can be obtained according to formula 2.
Described battery can determine the magnitude of voltage of self current residual, namely determines the first magnitude of voltage, and after the described voltage change of acquisition, described battery can determine the second magnitude of voltage, and namely after the described voltage drop of generation, described battery may remaining magnitude of voltage.Described second magnitude of voltage can described first magnitude of voltage deduct described voltage change after obtain.Described second magnitude of voltage can be determined according to formula 3.
After described second magnitude of voltage of acquisition, can judge whether described second magnitude of voltage is not more than the first voltage threshold.Can judge whether described second magnitude of voltage is not more than described first voltage threshold according to the characteristic of described battery.Such as, battery may quit work lower than during certain voltage value in self electric quantity, then this makes the out-of-work magnitude of voltage of battery can be set to described first voltage threshold, and described first voltage threshold also can be called the safe voltage value of described battery.Different described first voltage threshold then corresponding to it of battery may be different.
In the present embodiment, judge to determine that described second magnitude of voltage is not more than described first voltage threshold.
If judge to determine that described second magnitude of voltage is not more than described first voltage threshold, illustrate that described battery cannot normally work after the described voltage drop of generation, then the carrying scope of described battery that needs to have pointed out this voltage drop of described electronic equipment to exceed.
In the present embodiment, described electronic equipment can produce the first warning information, and the controller 203 that described first warning information can be sent in described electronic equipment, controller 203 can adjust the duty of described electronic equipment according to described first warning information, such as power consumption can be reduced, as should be used for reducing power consumption by closing some of them, described first voltage threshold is not more than to make described second magnitude of voltage as far as possible, described battery can not be quit work because voltage drop is too large, thus also can avoid the situation occurring unexpected shutdown as far as possible.
Embodiment two:
Described electronic equipment is mobile phone.This mobile phone has a battery.
When the powering mode of described electronic equipment needs to be switched to DC pattern from AC pattern, the first instantaneous voltage value and first instantaneous current value of described battery can be obtained.Obtain described first instantaneous voltage value and described first instantaneous current value when described battery is full of electricity in the present embodiment.After described first instantaneous voltage value of acquisition and described first instantaneous current value, the internal resistance value of described battery can be obtained according to formula 1.
After the described internal resistance value of acquisition, can discharge current value needed for described electronic equipment and described internal resistance value determination voltage change.
Wherein, the total current needed for system that described electronic equipment can obtain according to Switching Module 201 and/or general power determine the described discharge current value needed for described electronic equipment, then just can determine the voltage drop of described electronic equipment when being switched to DC pattern from AC pattern according to described discharge current value and described internal resistance value, i.e. described voltage change.Described voltage change can be obtained according to formula 2.
Described battery can determine the magnitude of voltage of self current residual, namely determines the first magnitude of voltage, and after the described voltage change of acquisition, described battery can determine the second magnitude of voltage, and namely after the described voltage drop of generation, described battery may remaining magnitude of voltage.Described second magnitude of voltage can described first magnitude of voltage deduct described voltage change after obtain.Described second magnitude of voltage can be determined according to formula 3.
After described second magnitude of voltage of acquisition, can judge whether described second magnitude of voltage is not more than the first voltage threshold.Can judge whether described second magnitude of voltage is not more than described first voltage threshold according to the characteristic of described battery.Such as, battery may quit work lower than during certain voltage value in self electric quantity, then this makes the out-of-work magnitude of voltage of battery can be set to described first voltage threshold, and described first voltage threshold also can be called the safe voltage value of described battery.Different described first voltage threshold then corresponding to it of battery may be different.
In the present embodiment, judge to determine that described second magnitude of voltage is greater than described first voltage threshold.
If judge to determine that described second magnitude of voltage is greater than described first voltage threshold, illustrate that described battery can normally work after the described voltage drop of generation.
In the present embodiment, described electronic equipment can produce the first operational order, and described first operational order can be sent to controller 203, can control described electronic equipment according to described first operational order to make controller 203 and switch to described DC pattern by described AC pattern, described battery can normally work.
Embodiment three:
Described electronic equipment is mobile phone.This mobile phone has a battery.
When the powering mode of described electronic equipment needs to be switched to DC pattern from AC pattern, the first instantaneous voltage value and first instantaneous current value of described battery can be obtained.
Both just started when discharging, to obtain described first instantaneous voltage value and described first instantaneous current value at described battery in the present embodiment, also obtain described first instantaneous voltage value and described first instantaneous current value when described battery charging is complete, namely obtain the first instantaneous voltage value described in twice and described first instantaneous current value.After described first instantaneous voltage value of acquisition and described first instantaneous current value, the internal resistance value of described battery can be obtained according to formula 1.Two internal resistance values can be obtained in the present embodiment, such as can respectively with R
1and R
2represent.
If obtain the first instantaneous voltage value described in twice and described first instantaneous current value, then can obtain internal resistance value respectively, after acquisition two internal resistance values, its mean value can be got as the described internal resistance value in the embodiment of the present invention, or also can select internal resistance value larger in these two internal resistance values as the described internal resistance value in the embodiment of the present invention.R can be selected in the present embodiment
1and R
2in larger internal resistance value as described internal resistance value, such as, in the present embodiment R
1> R
2, then can determine by R
1as described internal resistance value.
After the described internal resistance value of acquisition, can discharge current value needed for described electronic equipment and described internal resistance value determination voltage change.
Wherein, the total current needed for system that described electronic equipment can obtain according to Switching Module 201 and/or general power determine the described discharge current value needed for described electronic equipment, then just can determine the voltage drop of described electronic equipment when being switched to DC pattern from AC pattern according to described discharge current value and described internal resistance value, i.e. described voltage change.Described voltage change can be obtained according to formula 2.
Described battery can determine the magnitude of voltage of self current residual, namely determines the first magnitude of voltage, and after the described voltage change of acquisition, described battery can determine the second magnitude of voltage, and namely after the described voltage drop of generation, described battery may remaining magnitude of voltage.Described second magnitude of voltage can described first magnitude of voltage deduct described voltage change after obtain.Described second magnitude of voltage can be determined according to formula 3.
After described second magnitude of voltage of acquisition, can judge whether described second magnitude of voltage is not more than the first voltage threshold.Can judge whether described second magnitude of voltage is not more than described first voltage threshold according to the characteristic of described battery.Such as, battery may quit work lower than during certain voltage value in self electric quantity, then this makes the out-of-work magnitude of voltage of battery can be set to described first voltage threshold, and described first voltage threshold also can be called the safe voltage value of described battery.Different described first voltage threshold then corresponding to it of battery may be different.
In the present embodiment, judge to determine that described second magnitude of voltage is not more than described first voltage threshold.
If judge to determine that described second magnitude of voltage is not more than described first voltage threshold, illustrate that described battery cannot normally work after the described voltage drop of generation, then the carrying scope of described battery that needs to have pointed out this voltage drop of described electronic equipment to exceed.
In the present embodiment, described electronic equipment can produce the first warning information, and the controller 203 that described first warning information can be sent in described electronic equipment, controller 203 can adjust the duty of described electronic equipment according to described first warning information, such as power consumption can be reduced, as should be used for reducing power consumption by closing some of them, described first voltage threshold is not more than to make described second magnitude of voltage as far as possible, described battery can not be quit work because voltage drop is too large, thus also can avoid the situation occurring unexpected shutdown as far as possible.
See Fig. 3, it is the structural drawing of electronic equipment described in the embodiment of the present invention.Described electronic equipment can have a battery, and described electronic equipment can also comprise the first acquisition module 301, second acquisition module 302, determination module 303, the 3rd acquisition module 304, judge module 305 and generation module 306.Described electronic equipment can also comprise sending module 307.Wherein, the described electronic equipment shown in Fig. 3 and the described electronic equipment shown in Fig. 2 can be same electronic equipments.
First acquisition module 301 may be used for, when the powering mode of described electronic equipment needs to be switched to direct current DC pattern from interchange AC pattern, obtaining the first instantaneous voltage value and first instantaneous current value of described battery.
First acquisition module 301 specifically may be used for obtaining described first instantaneous voltage value and described first instantaneous current value when described battery starts to discharge and/or when described battery charging is complete.
Second acquisition module 302 may be used for the internal resistance value obtaining described battery according to described first instantaneous voltage value and described first instantaneous current value.
Second acquisition module 302 can also be used for obtaining described discharge current value needed for described electronic equipment by the controller of described electronic equipment.
Determination module 303 may be used for discharge current value needed for described electronic equipment and described internal resistance value determination voltage change.
3rd acquisition module 304 may be used for obtaining the second magnitude of voltage according to the first current magnitude of voltage of described battery and described voltage change.
3rd acquisition module 304 specifically may be used for deducting described voltage change with described first magnitude of voltage and obtains described second magnitude of voltage.
Judge module 305 may be used for judging whether described second magnitude of voltage is not more than the first voltage threshold.
Generation module 305 may be used for, when described second magnitude of voltage is not more than described first voltage threshold, producing the first warning information.
Generation module 305 can also be used for, when described second magnitude of voltage is greater than described first voltage threshold, producing the first operational order.
Sending module 307 may be used for the controller described first warning information being sent to described electronic equipment, controls the power consumption of described electronic equipment to make described controller according to described first warning information.
Sending module 307 specifically may be used for described first warning information to be sent to described controller, control described electronic equipment to make described controller according to described first warning information and reduce power consumption, thus make described second magnitude of voltage after reduction power consumption be greater than described first voltage threshold.
Sending module 307 specifically may be used for the controller described first operational order being sent to described electronic equipment, controls described electronic equipment switch to described DC pattern by described AC pattern to make described controller according to described first operational order.
In the embodiment of the present invention, described first voltage threshold can be the safe voltage value of described battery.
Alarm method in the embodiment of the present invention comprises: when the powering mode needs of described electronic equipment are switched to direct current DC pattern from interchange AC pattern, obtain the first instantaneous voltage value and first instantaneous current value of described battery; The internal resistance value of described battery is obtained according to described first instantaneous voltage value and described first instantaneous current value; Discharge current value needed for described electronic equipment and described internal resistance value determination voltage change; The second magnitude of voltage is obtained according to the first current magnitude of voltage of described battery and described voltage change; Judge whether described second magnitude of voltage is not more than the first voltage threshold; When described second magnitude of voltage is not more than described first voltage threshold, produce the first warning information.
In the embodiment of the present invention, when the powering mode of described electronic equipment needs to be switched to DC pattern from AC pattern, the first instantaneous voltage value and first instantaneous current value of battery can be obtained, the internal resistance value of described battery can be obtained according to described first instantaneous voltage value and described first instantaneous current value, thus possible voltage change can be determined, if voltage change is excessive, exceed the load-bearing capacity of described battery, then can adjust accordingly described electronic equipment, because be the internal resistance value calculating described battery in real time, comparatively accurate, described electronic equipment more adequately can be avoided to be switched to DC pattern from AC pattern and may to occur unexpected situation of shutting down, protect system data, ensure that the safe handling of battery, extend the serviceable life of battery, simultaneously without the need to using multi cell battery, save cost.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (16)
1. an alarm method, is applied to one and has battery electron equipment, it is characterized in that, said method comprising the steps of:
When the powering mode of described electronic equipment needs to be switched to direct current DC pattern from interchange AC pattern, obtain the first instantaneous voltage value and first instantaneous current value of described battery;
The internal resistance value of described battery is obtained according to described first instantaneous voltage value and described first instantaneous current value;
Discharge current value needed for described electronic equipment and described internal resistance value determination voltage change;
First magnitude of voltage current according to described battery and described voltage change obtain the second magnitude of voltage;
Judge whether described second magnitude of voltage is not more than the first voltage threshold;
When described second magnitude of voltage is not more than described first voltage threshold, produce the first warning information.
2. the method for claim 1, it is characterized in that, acquisition the first instantaneous voltage value of battery and the step of the first instantaneous current value comprise: when described battery starts to discharge and/or when described battery charging is complete, obtain described first instantaneous voltage value and described first instantaneous current value.
3. the method for claim 1, it is characterized in that, before the discharge current value needed for described electronic equipment and described internal resistance value determination voltage change, also comprise step: obtain the described discharge current value needed for described electronic equipment by the controller of described electronic equipment.
4. the method for claim 1, is characterized in that, the step that first magnitude of voltage current according to described battery and described voltage change obtain the second magnitude of voltage comprises: deduct described voltage change with described first magnitude of voltage and obtain described second magnitude of voltage.
5. the method for claim 1, it is characterized in that, after generation first warning information, also comprise step: the controller described first warning information being sent to described electronic equipment, control the power consumption of described electronic equipment to make described controller according to described first warning information.
6. method as claimed in claim 5, it is characterized in that, described first warning information is sent to the controller of described electronic equipment, comprise with the step making described controller control the power consumption of described electronic equipment according to described first warning information: described first warning information is sent to described controller, control described electronic equipment to make described controller according to described first warning information and reduce power consumption, thus make described second magnitude of voltage after reduction power consumption be greater than described first voltage threshold.
7. the method for claim 1, is characterized in that, described first voltage threshold is the safe voltage value of described battery.
8. the method for claim 1, it is characterized in that, judging described second magnitude of voltage also comprises step after whether being not more than the first voltage threshold: when being greater than described first voltage threshold when described second magnitude of voltage, produce the first operational order, and described first operational order is sent to the controller of described electronic equipment, control described electronic equipment to make described controller according to described first operational order and switch to described DC pattern by described AC pattern.
9. an electronic equipment, described electronic equipment has a battery, it is characterized in that, described electronic equipment comprises:
First acquisition module, during for needing at the powering mode of described electronic equipment to be switched to direct current DC pattern from interchange AC pattern, obtains the first instantaneous voltage value and first instantaneous current value of described battery;
Second acquisition module, for obtaining the internal resistance value of described battery according to described first instantaneous voltage value and described first instantaneous current value;
Determination module, for the discharge current value needed for described electronic equipment and described internal resistance value determination voltage change;
3rd acquisition module, for obtaining the second magnitude of voltage according to current the first magnitude of voltage of described battery and described voltage change;
Judge module, for judging whether described second magnitude of voltage is not more than the first voltage threshold;
Generation module, for when described second magnitude of voltage is not more than described first voltage threshold, produces the first warning information.
10. electronic equipment as claimed in claim 9, is characterized in that, described first acquisition module specifically for obtaining described first instantaneous voltage value and described first instantaneous current value when described battery starts to discharge and/or when described battery charging is complete.
11. electronic equipments as claimed in claim 9, is characterized in that, described second acquisition module is also for obtaining the described discharge current value needed for described electronic equipment by the controller of described electronic equipment.
12. electronic equipments as claimed in claim 9, is characterized in that, described 3rd acquisition module obtains described second magnitude of voltage specifically for deducting described voltage change with described first magnitude of voltage.
13. electronic equipments as claimed in claim 9, it is characterized in that, described electronic equipment also comprises sending module, for: the controller described first warning information being sent to described electronic equipment, controls the power consumption of described electronic equipment to make described controller according to described first warning information.
14. electronic equipments as claimed in claim 13, it is characterized in that, described sending module specifically for: described first warning information is sent to described controller, control described electronic equipment to make described controller according to described first warning information and reduce power consumption, thus make described second magnitude of voltage after reduction power consumption be greater than described first voltage threshold.
15. electronic equipments as claimed in claim 9, is characterized in that, described first voltage threshold is the safe voltage value of described battery.
16. electronic equipments as claimed in claim 9, is characterized in that, described generation module also for: when described second magnitude of voltage is greater than described first voltage threshold, produce the first operational order;
Described electronic equipment also comprises sending module, for described first operational order being sent to the controller of described electronic equipment, controlling described electronic equipment switch to described DC pattern by described AC pattern to make described controller according to described first operational order.
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| CN201210353160.5A CN103675420B (en) | 2012-09-20 | 2012-09-20 | A kind of alarm method and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210353160.5A CN103675420B (en) | 2012-09-20 | 2012-09-20 | A kind of alarm method and electronic equipment |
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| CN103675420A CN103675420A (en) | 2014-03-26 |
| CN103675420B true CN103675420B (en) | 2016-04-27 |
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| CN107396510A (en) * | 2017-06-12 | 2017-11-24 | 深圳市金立通信设备有限公司 | A kind of filming control method and terminal |
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| US4930062A (en) * | 1988-09-14 | 1990-05-29 | Nec Corporation | Computer power supply with optically isolated shutdown circuits |
| CN1047768A (en) * | 1990-01-16 | 1990-12-12 | 昆明电脑公司研究所 | Automatic and continuous device for supplying electric power |
| CN2507175Y (en) * | 2001-09-27 | 2002-08-21 | 詹东跃 | High-frequency intelligent power source converter |
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| CN103675420A (en) | 2014-03-26 |
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