CN103033763B - A kind ofly show the method and system of battery electric quantity when controlling mobile terminal charging - Google Patents
A kind ofly show the method and system of battery electric quantity when controlling mobile terminal charging Download PDFInfo
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- CN103033763B CN103033763B CN201210557968.5A CN201210557968A CN103033763B CN 103033763 B CN103033763 B CN 103033763B CN 201210557968 A CN201210557968 A CN 201210557968A CN 103033763 B CN103033763 B CN 103033763B
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- 238000012360 testing method Methods 0.000 claims description 16
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- 230000005611 electricity Effects 0.000 description 5
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Abstract
The present invention discloses a kind of method and system controlling to show when mobile terminal charges battery electric quantity, and wherein, described method comprises step: when detecting that charger inserts mobile terminal and charges to the battery of mobile terminal, detect the internal resistance of cell R of described battery
iNNER; According to the internal resistance of cell R of predetermined charging current and acquisition
iNNERobtain the standard charging current I of described charger
fINAL, and the charging current of described charger is set to described standard charging current I
fINAL; The primary voltage of battery is increased by one and revises voltage V
dELTAobtain the virtual voltage of battery, obtain battery electric quantity by described virtual voltage, and control described mobile terminal and show the battery electric quantity obtained.Thus obtaining battery electric quantity accurately, the battery level information that user is known is more accurate, facilitates user and manages charging process.
Description
Technical field
The present invention relates to battery capacity of mobile terminal display field, particularly relate to a kind of method and system controlling to show when mobile terminal charges battery electric quantity.
Background technology
Along with popularizing of micro USB interface, various countries start the charger specification unifying the mobile terminals such as mobile phone gradually, namely use the charger for mobile phone of micro USB interface.The unification of charger, mean that user can use the charger for mobile phone of any one micro USB interface to the mobile phone of oneself charging, but bring a problem: although the interface of charger is consistent thereupon, but the maximum output current of different chargers and standard charging current are different, so according to the charging current for charging that mobile phone is preset, the cell voltage calculated and the battery electric quantity that finally obtains, by inaccurate, finally cause battery level information display on mobile phone inaccurate.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of method and system controlling to show when mobile terminal charges battery electric quantity, when being intended to solve the charging of existing mobile terminal, battery electric quantity shows inaccurate problem.
Technical scheme of the present invention is as follows:
Show a method for battery electric quantity when controlling mobile terminal charging, wherein, comprise step:
A, when detect charger insert mobile terminal and the battery of mobile terminal is charged time, detect the internal resistance of cell of described battery;
B, obtain the standard charging current of described charger according to the internal resistance of cell of predetermined charging current and acquisition, and the charging current of described charger is set to described standard charging current;
C, the primary voltage of battery increased by one and revise voltage and obtain the virtual voltage of battery, obtain battery electric quantity by described virtual voltage, and control described mobile terminal and show the battery electric quantity obtained.
Show the method for battery electric quantity during described control mobile terminal charging, wherein, described steps A specifically comprises:
A1, when detect charger insert mobile terminal and the battery of mobile terminal is charged time, the charging current of measuring current as charger that at least two are less than described predetermined charging current is set;
A2, detect corresponding test voltage when battery being charged according to described measuring current;
A3, obtain the internal resistance of cell by described at least two measuring currents and corresponding test voltage.
Show the method for battery electric quantity during described control mobile terminal charging, wherein, described step B specifically comprises:
B1, the charging current of charger is set to described predetermined charging current, obtains corresponding cell voltage;
B2, the charging current of charger is increased 100mA, obtain and increase the corresponding cell voltage after electric current;
B3, judge whether increase the cell voltage after electric current increases 100mA*R than the cell voltage increased before electric current
iNNER, when no using charging current corresponding to cell voltage before increasing as the standard charging current of charger, return step B2 when being; Wherein R
iNNERfor the internal resistance of cell of battery.
Show the method for battery electric quantity during described control mobile terminal charging, wherein, in described step B, described predetermined charging current is 500mA.
Show the method for battery electric quantity during described control mobile terminal charging, wherein, in described step C, described primary voltage is the cell voltage calculated according to the original charging current of mobile terminal setting.
Show a system for battery electric quantity when controlling mobile terminal charging, wherein, comprising:
Internal resistance of cell detection module, for when detecting that charger inserts mobile terminal and charges to the battery of mobile terminal, detects the internal resistance of cell of described battery;
Standard charging current acquisition module, for obtaining the standard charging current of described charger according to the internal resistance of cell of predetermined charging current and acquisition, and is set to described standard charging current by the charging current of described charger;
Battery electric quantity display module, revises voltage obtain the virtual voltage of battery for the primary voltage of battery being increased by one, obtain battery electric quantity by described virtual voltage, and controls described mobile terminal and show the battery electric quantity obtained.
Show the system of battery electric quantity during described control mobile terminal charging, wherein, described internal resistance of cell detection module comprises:
Measuring current setting unit, for when detecting that charger inserts mobile terminal and charges to the battery of mobile terminal, arranges the charging current of measuring current as charger that at least two are less than described predetermined charging current;
Test voltage detecting unit, corresponding test voltage when battery being charged according to described measuring current for detecting;
Internal resistance of cell acquiring unit, for obtaining the internal resistance of cell by described at least two measuring currents and corresponding test voltage.
Show the system of battery electric quantity during described control mobile terminal charging, wherein, described standard charging current acquisition module comprises:
Cell voltage first acquiring unit, for the charging current of charger is set to described predetermined charging current, obtains corresponding cell voltage;
Cell voltage second acquisition unit, for the charging current of charger is increased 100mA, obtains the corresponding cell voltage after increasing electric current;
Standard charging current setting unit, for judging whether the cell voltage after increasing electric current increases 100mA*R than the cell voltage increased before electric current
iNNER, when no using charging current corresponding to cell voltage before increasing as the standard charging current of charger, return cell voltage second acquisition unit when being; Wherein R
iNNERfor the internal resistance of cell of battery.
Beneficial effect: the present invention is by first detecting the internal resistance of cell, then the standard charging current of charger is obtained according to the internal resistance of cell and preset charged electric current, and the charging current of charger is set to this standard charging current, finally according to this standard charging current, cell voltage is revised, thus obtain battery electric quantity more accurately, and show.Even if when the charger that present invention achieves non-standard configuration charges to mobile terminal, also can automatically revise charge capacity curve, thus obtaining battery electric quantity accurately, the battery level information that user is known is more accurate, facilitates user and manages charging process.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet that the present invention controls to show when mobile terminal charges the method preferred embodiment of battery electric quantity.
Fig. 2 is the particular flow sheet detecting the internal resistance of cell in method of the present invention.
Fig. 3 is the particular flow sheet obtaining charger standard charging current in method of the present invention.
Fig. 4 is the structured flowchart that the present invention controls to show when mobile terminal charges the system preferred embodiment of battery electric quantity.
Fig. 5 is the structured flowchart of internal resistance of cell detection module in system shown in Figure 4.
Fig. 6 is the structured flowchart of system shown in Figure 4 Plays charging current acquisition module.
Embodiment
The invention provides a kind of method and system controlling to show when mobile terminal charges battery electric quantity, for making object of the present invention, technical scheme and effect clearly, clearly, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Refer to Fig. 1, Fig. 1 is the schematic flow sheet that the present invention controls to show when mobile terminal charges the method preferred embodiment of battery electric quantity, as shown in the figure, comprises step:
S101, when detect charger insert mobile terminal and the battery of mobile terminal is charged time, detect the internal resistance of cell R of described battery
iNNER;
S102, internal resistance of cell R according to predetermined charging current and acquisition
iNNERobtain the standard charging current I of described charger
fINAL, and the charging current of described charger is set to described standard charging current I
fINAL;
S103, the primary voltage of battery is increased by one revise voltage V
dELTAobtain the virtual voltage of battery, obtain battery electric quantity by described virtual voltage, and control described mobile terminal and show the battery electric quantity obtained.
In step S101, first detect charger whether to be inserted in mobile terminal and to carry out charging operations, when detecting that charger is inserted into mobile terminal and charges to the battery of mobile terminal, just start the internal resistance of cell detecting battery of mobile terminal, although battery generally can demarcate the internal resistance of cell, but along with the increase of battery access times, internal resistance of cell R
iNNERcan constantly become large, so need again to demarcate internal resistance of cell R
iNNER.
Specifically, as shown in Figure 2, the idiographic flow demarcating the internal resistance of cell comprises step:
S201, when detect charger insert mobile terminal and the battery of mobile terminal is charged time, the charging current of measuring current as charger that at least two are less than described predetermined charging current is set; This predetermined charging current is arranged according to existing charger maximum output current, and the maximum output current that existing charger allows is general all at more than 500mA, is full of electricity to meet big screen intelligent mobile terminal popular at present in official hour.And if the charging current of charger is set to the electric current being less than predetermined charging current, the electric current of so actual output of charger is the electric current arranged.For the charger of a 5V500mA, this charger maximum output current and predetermined charging current 500mA, when software design patterns charging current is 200mA, so the output current of charger reality is 200mA, the charging current of certain setting also can be predetermined charging current, but can not be greater than predetermined charging current.
S202, detect corresponding test voltage when battery being charged according to described measuring current; After being provided with at least two measuring currents, the test voltage obtained when being charged by this measuring current can be detected, such as the charger of above-mentioned 5V500mA, when arranging measuring current and being 400mA, by ADC(analog to digital converter) cell voltage V detected
aDC400MA, when arranging measuring current and being 500mA, cell voltage V detected by ADC
aDC500MA.
S203, obtain internal resistance of cell R by described at least two measuring currents and corresponding test voltage
iNNER.
Because measuring current is less than predetermined charging current, output current is also measuring current, and so last cell voltage also should be proportional relation, and its specific formula for calculation is as follows:
; I wherein
sw400MAbe 400mA, V
oCfor cell voltage time uncharged.
; I wherein
sw500MAbe 400mA, V
oCfor cell voltage time uncharged.
Finally obtain
;
Wherein, V
aDC500MA, V
aDC400MAall record, internal resistance of cell R can be calculated by above formula
iNNER.
In step s 102, the internal resistance of cell R by obtaining
iNNERand predetermined charging current obtains the standard charging current I of described charger
fINAL, and the size of the charging current of described charger is set to described standard charging current I
fINAL;
Specifically, as shown in Figure 3, step S102 can be refined as following steps:
S301, the charging current of charger is set to described predetermined charging current, obtains corresponding cell voltage;
S302, the charging current of charger is increased 100mA, obtain and increase the corresponding cell voltage after electric current;
S303, judge whether increase the cell voltage after electric current increases 100mA*R than the cell voltage increased before electric current
iNNER;
S304, when no using charging current corresponding to cell voltage before increasing as the standard charging current of charger, return step S303 when being.
The core of above-mentioned steps is with predetermined charging current for benchmark, and the basis of predetermined charging current increases charging current, judges whether detect the cell voltage obtained increases N*100mA*R
iNNER, wherein N is the number of times increased, thus detects standard charging current and the maximum output current of charger.
Take maximum output current as the charger of 600mA be example, first arranging charging current is 500mA, and the cell voltage now detected by ADC is V
aDC500MA, then on the basis of 500mA, increase 100mA, the charging current so arranged is 600mA, and because the charger inserted is the charger of 600mA, so the charging current of the now exportable 600mA of charger, the cell voltage now detected by ADC is V
aDC600MA, obtain V
aDC600MAwith V
aDC500MAdifference
, should
; Continuing to increase charging current is 700mA, detects the cell voltage V obtained
aDC700MA, obtain V
aDC700MAwith V
aDC500MAdifference
, because charger cannot export the charging current of 700mA, so
, so can know that 600mA is the standard output electric current of charger.
After obtaining the standard output electric current of charger, the charging current of charger can be set to this standard output electric current, thus shorten the duration of charging in safe range.
In step s 103, the primary voltage of battery is increased by one and revise voltage V
dELTAobtain the virtual voltage of battery, described correction voltage V
dELTA=(I
fINAL-I
sW) * R
iNNER, wherein, I
sWfor the original charging current of mobile terminal setting, obtain battery electric quantity by described virtual voltage, and control described mobile terminal and show the battery electric quantity obtained.
In this step, although the charging current of charger is arranged the standard charging current in order to charger, but the software of mobile terminal can't calculate cell voltage with this standard charging current, so the information of the last battery electric quantity obtained also is inaccurate, need to revise cell voltage.
Specifically can increase by one and revise voltage on the basis of primary voltage, this primary voltage is the cell voltage calculated according to the original charging current of mobile terminal setting, such as certain standard charging current is that the charger of 800mA is inserted into when charging in mobile terminal, and mobile terminal can calculate primary voltage according to the electric current of the 200mA preset.
Computing method are as follows:
; Wherein, internal resistance of cell R
iNNERcan be calculated by step S101, here with R
iNNER=150Ohm is example, I
fINALfor the standard charging current of charger, obtain by step S102, I
fINAL=800mA, so V
dELTA=600mA*150Ohm=90mv.Again the correction voltage obtained is added that primary voltage obtains last cell voltage, obtain battery electric quantity according to this cell voltage.
The primary voltage calculated according to 200mA and the mapping table of battery electric quantity:
| Voltage | 3.300 | 3.400 | 3.579 | 3.597 | 3.626 | 3.650 | 3.677 | 3.698 | 3.700 | 3.710 | 3.719 |
| Electricity | 0% | 2% | 5% | 6% | 11% | 16% | 20% | 26% | 27% | 32% | 37% |
| Voltage | 3.730 | 3.755 | 3.781 | 3.812 | 3.851 | 3.913 | 3.921 | 3.973 | 4.018 | 4.057 | 4.200 |
| Electricity | 42% | 50% | 56% | 62% | 68% | 76% | 77% | 83% | 88% | 92% | 100% |
And after revising, the cell voltage calculated according to 800mA and the mapping table of battery electric quantity:
| Voltage | 3.390 | 3.490 | 3.669 | 3.687 | 3.716 | 3.740 | 3.767 | 3.788 | 3.790 | 3.800 | 3.809 |
| Electricity | 0% | 2% | 5% | 6% | 11% | 16% | 20% | 26% | 27% | 32% | 37% |
| Voltage | 3.820 | 3.845 | 3.871 | 3.902 | 3.941 | 4.003 | 4.011 | 4.063 | 4.108 | 4.147 | 4.200 |
| Electricity | 42% | 50% | 56% | 62% | 68% | 76% | 77% | 83% | 88% | 92% | 100% |
Like this, by above-mentioned correction, the virtual voltage of the battery that cell voltage can more truly reflect, thus make the last battery electric quantity shown on mobile terminals also more accurate.
Based on said method, the present invention also provides a kind of system controlling to show when mobile terminal charges battery electric quantity, as shown in Figure 4, comprising:
Internal resistance of cell detection module 100, for when detecting that charger inserts mobile terminal and charges to the battery of mobile terminal, detects the internal resistance of cell R of described battery
iNNER;
Standard charging current acquisition module 200, for the internal resistance of cell R according to predetermined charging current and acquisition
iNNERobtain the standard charging current I of described charger
fINAL, and the charging current of described charger is set to described standard charging current I
fINAL;
Battery electric quantity display module 300, revises voltage V for the primary voltage of battery is increased by one
dELTAobtain the virtual voltage of battery, described correction voltage V
dELTA=(I
fINAL-I
sW) * R
iNNER, obtain battery electric quantity by described virtual voltage, and control described mobile terminal and show the battery electric quantity obtained.
Further, as shown in Figure 5, described internal resistance of cell detection module 100 comprises:
Measuring current setting unit 110, for when detecting that charger inserts mobile terminal and charges to the battery of mobile terminal, arranges the charging current of measuring current as charger that at least two are less than described predetermined charging current;
Test voltage detecting unit 120, corresponding test voltage when battery being charged according to described measuring current for detecting;
Internal resistance of cell acquiring unit 130, for obtaining internal resistance of cell R by described at least two measuring currents and corresponding test voltage
iNNER.
Further, as shown in Figure 6, described standard charging current acquisition module 200 comprises:
Cell voltage first acquiring unit 210, for the charging current of charger is set to described predetermined charging current, obtains corresponding cell voltage;
Cell voltage second acquisition unit 220, for the charging current of charger is increased 100mA, obtains the corresponding cell voltage after increasing electric current;
Standard charging current setting unit 230, for judging whether the cell voltage after increasing electric current increases 100mA*R than the cell voltage increased before electric current
iNNER, when no using charging current corresponding to cell voltage before increasing as the standard charging current of charger, return cell voltage second acquisition unit when being.Ins and outs about above-mentioned modular unit are existing in method above to be described in detail, therefore repeats no more.
In sum, the present invention is by first detecting the internal resistance of cell, then the standard charging current of charger is obtained according to the internal resistance of cell and preset charged electric current, and the charging current of charger is set to this standard charging current, finally according to this standard charging current, cell voltage is revised, thus obtain battery electric quantity more accurately, and show.Even if when the charger that present invention achieves non-standard configuration charges to mobile terminal, also can automatically revise charge capacity curve, thus obtaining battery electric quantity accurately, the battery level information that user is known is more accurate, facilitates user and manages charging process.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (6)
1. show a method for battery electric quantity when controlling mobile terminal charging, it is characterized in that, comprise step:
A, when detect charger insert mobile terminal and the battery of mobile terminal is charged time, detect the internal resistance of cell of described battery;
B, obtain the standard charging current of described charger according to the internal resistance of cell of predetermined charging current and acquisition, and the charging current of described charger is set to described standard charging current;
C, the primary voltage of battery increased by one and revise voltage and obtain the virtual voltage of battery, obtain battery electric quantity by described virtual voltage, and control described mobile terminal and show the battery electric quantity obtained;
Described step B specifically comprises:
B1, the charging current of charger is set to described predetermined charging current, obtains corresponding cell voltage;
B2, the charging current of charger is increased 100mA, obtain and increase the corresponding cell voltage after electric current;
B3, judge whether increase the cell voltage after electric current increases 100mA*R than the cell voltage increased before electric current
iNNER, when no using charging current corresponding to cell voltage before increasing as the standard charging current of charger, return step B2 when being; Wherein R
iNNERfor the internal resistance of cell of battery;
Described correction voltage V
dELTA=(I
fINAL-I
sW) * R
iNNER, wherein, I
sWfor the original charging current of mobile terminal setting, I
fINALfor the standard charging current of charger.
2. show the method for battery electric quantity when controlling mobile terminal charging according to claim 1, it is characterized in that, described steps A specifically comprises:
A1, when detect charger insert mobile terminal and the battery of mobile terminal is charged time, the charging current of measuring current as charger that at least two are less than described predetermined charging current is set;
A2, detect corresponding test voltage when battery being charged according to described measuring current;
A3, obtain the internal resistance of cell by described at least two measuring currents and corresponding test voltage.
3. show the method for battery electric quantity when controlling mobile terminal charging according to claim 1, it is characterized in that, in described step B, described predetermined charging current is 500mA.
4. show the method for battery electric quantity when controlling mobile terminal charging according to claim 1, it is characterized in that, in described step C, described primary voltage is the cell voltage calculated according to the original charging current of mobile terminal setting.
5. show a system for battery electric quantity when controlling mobile terminal charging, it is characterized in that, comprising:
Internal resistance of cell detection module, for when detecting that charger inserts mobile terminal and charges to the battery of mobile terminal, detects the internal resistance of cell of described battery;
Standard charging current acquisition module, for obtaining the standard charging current of described charger according to the internal resistance of cell of predetermined charging current and acquisition, and is set to described standard charging current by the charging current of described charger;
Battery electric quantity display module, revises voltage obtain the virtual voltage of battery for the primary voltage of battery being increased by one, obtain battery electric quantity by described virtual voltage, and controls described mobile terminal and show the battery electric quantity obtained;
Described standard charging current acquisition module comprises:
Cell voltage first acquiring unit, for the charging current of charger is set to described predetermined charging current, obtains corresponding cell voltage;
Cell voltage second acquisition unit, for the charging current of charger is increased 100mA, obtains the corresponding cell voltage after increasing electric current;
Standard charging current setting unit, for judging whether the cell voltage after increasing electric current increases 100mA*R than the cell voltage increased before electric current
iNNER, when no using charging current corresponding to cell voltage before increasing as the standard charging current of charger, return cell voltage second acquisition unit when being; Wherein R
iNNERfor the internal resistance of cell of battery;
Described correction voltage V
dELTA=(I
fINAL-I
sW) * R
iNNER, wherein, I
sWfor the original charging current of mobile terminal setting, I
fINALfor the standard charging current of charger.
6. show the system of battery electric quantity when controlling mobile terminal charging according to claim 5, it is characterized in that, described internal resistance of cell detection module comprises:
Measuring current setting unit, for when detecting that charger inserts mobile terminal and charges to the battery of mobile terminal, arranges the charging current of measuring current as charger that at least two are less than described predetermined charging current;
Test voltage detecting unit, corresponding test voltage when battery being charged according to described measuring current for detecting;
Internal resistance of cell acquiring unit, for obtaining the internal resistance of cell by described at least two measuring currents and corresponding test voltage.
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| CN104953638B (en) * | 2014-03-31 | 2017-09-08 | 宇龙计算机通信科技(深圳)有限公司 | A kind of charging device and charging method |
| CN105244963A (en) * | 2015-10-28 | 2016-01-13 | 无锡中感微电子股份有限公司 | Charging device and charging method |
| CN105785104B (en) * | 2016-04-01 | 2018-07-13 | 中国联合网络通信集团有限公司 | Mobile terminal test electric current determines method and device |
| CA3046269A1 (en) * | 2016-12-06 | 2018-06-14 | Newtrax Holdings Inc. | Safety device and method to prevent use of the same device if faulty |
| CN107703461B (en) * | 2017-11-20 | 2019-12-10 | 普联技术有限公司 | battery power display control method and display control device of electronic equipment |
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| CN201323466Y (en) * | 2008-11-12 | 2009-10-07 | 赵建和 | Single battery charger adopting an SCM to conduct safety control |
| CN101581768A (en) * | 2009-06-23 | 2009-11-18 | 辽宁九夷三普电池有限公司 | Method for quickly detecting DC internal resistance of cylindrical nickel-hydrogen high-power battery |
| CN102830363A (en) * | 2012-08-27 | 2012-12-19 | 惠州Tcl移动通信有限公司 | Method and system for detecting battery of mobile device in charging |
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| KR20030058747A (en) * | 2001-12-31 | 2003-07-07 | 엘지전자 주식회사 | Charge level display apparatus for battery |
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| CN201323466Y (en) * | 2008-11-12 | 2009-10-07 | 赵建和 | Single battery charger adopting an SCM to conduct safety control |
| CN101581768A (en) * | 2009-06-23 | 2009-11-18 | 辽宁九夷三普电池有限公司 | Method for quickly detecting DC internal resistance of cylindrical nickel-hydrogen high-power battery |
| CN102830363A (en) * | 2012-08-27 | 2012-12-19 | 惠州Tcl移动通信有限公司 | Method and system for detecting battery of mobile device in charging |
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