CN102116845B - Segment display method for battery capacity of electronic equipment - Google Patents
Segment display method for battery capacity of electronic equipment Download PDFInfo
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- CN102116845B CN102116845B CN 200910266055 CN200910266055A CN102116845B CN 102116845 B CN102116845 B CN 102116845B CN 200910266055 CN200910266055 CN 200910266055 CN 200910266055 A CN200910266055 A CN 200910266055A CN 102116845 B CN102116845 B CN 102116845B
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Abstract
The invention provides a segment display method for battery capacity of electronic equipment aiming at the problem of inaccurate display of the battery capacity, which can guarantee the accuracy of battery capacity display. The segment display method for the battery capacity of the electronic equipment comprises the following steps of: determining a voltage boundary point for segment display of the battery capacity; and performing the segment display on the battery capacity according to the determined voltage boundary point, wherein the voltage boundary point is determined by the following steps of: discharging a battery in an electrical saturation state for multiple times and measuring a voltage value of the battery after each discharging process of the battery when the voltage is stable until the measured voltage value of the battery reaches a shut-down voltage value of the electronic equipment, wherein the energy released by each discharging process of the battery is the same or is approximately the same; and dividing the measured voltage value of the battery into as many groups as the segments of the segment display of the battery capacity according to the proportion of the segment display of the battery capacity, and determining the voltage boundary point based on two voltage values on critical parts of adjacent groups.
Description
Technical field
The present invention relates to field of power management, relate in particular to a kind of display packing of the segmentation for the electric device battery electric weight.
Background technology
At present, the battery electric quantity of electronic equipment is generally all by being positioned at user interface, and the battery icon on display screen and corresponding lattice number show.Usually, the demonstration of electric device battery electric weight obtains according to the division to its analog voltage often, and for example, the voltage range of battery is 3.5V-4.2V, the four lattice explicit representations of commonly using of take are example, this voltage range can be divided into to 4 lattice: 3.5V-3.7V and show 0 lattice; 3.7V-3.8V show 1 lattice; 3.8V-3.9V show 2 lattice; 3.9V-4.0V show 3 lattice; 4.0V-4.2V show 4 lattice.
Yet, increasing user's discovery, often there is larger difference in the demonstration of electric device battery electric weight with actual use impression.For example, that when the battery electric quantity of electronic equipment shows full lattice, uses is chronic, although and remaining electric weight shows to also have a lot (3 lattice or more), how long do not adhered to regard to automatic shutdown; Perhaps, be full of the rear battery electric quantity of electricity and reduce very soon, and when showing that electric weight only remains lattice when the user always worries that electronic equipment can shut down because of dead battery, but long time can be used.
Therefore, the battery electric quantity that how to show exactly electronic equipment is the problem of needs solution with the use impression that improves the user.
Summary of the invention
The present invention is directed to the current electronic device battery electric quantity and show inaccurate problem, a kind of display packing of the segmentation for the electric device battery electric weight is provided, can guarantee the accuracy that the electric device battery electric weight shows, and improve user's use impression.
The present inventor's discovery, in the actual use procedure of electronic equipment, different duties is different to the consumption of battery current, and difference is very large.Take mobile terminal as example, and electric current during mobile terminal standby only has 3～5mA, and while generally conversing, electric current may be 100～350mA, and the conversation when dtr signal, electric current may be up to 400～500mA.The difference of battery current consumption causes the output voltage of electric device battery to change greatly, or take mobile terminal as example, and during standby, because battery discharge current is very little, the output voltage of battery is higher; During conversation, the discharge current of battery is larger, and the output voltage of battery is on the low side.In addition, the constant-current discharge of battery is also nonlinear.As Fig. 1 is the battery discharge curve under 1C and two kinds of conditions of 0.2C respectively of a certain model, obviously, the constant-current discharge under these two kinds of conditions is all nonlinear.Visible, the nonlinear stack of the non-linear and battery constant-current discharge of battery current consumption is to produce the electric device battery electric weight to show inaccurate basic reason.
The invention provides a kind of display packing of the segmentation for the electric device battery electric weight, comprising:
Determine the voltage separation that the battery electric quantity segmentation shows; And
According to determined voltage separation, come segmentation to show battery electric quantity;
It is characterized in that, described voltage separation is determined in the following way:
Make battery multiple discharge in electric state of saturation and measure the magnitude of voltage of battery during voltage stabilization after the each electric discharge of battery, until the magnitude of voltage of measured battery reaches the shutdown magnitude of voltage of described electronic equipment, the energy that wherein the each electric discharge of battery discharges is identical or approximate identical; And
The ratio shown according to the battery electric quantity segmentation, the magnitude of voltage of the battery that measures is divided into to a plurality of groups of the segments equal number that shows with the battery electric quantity segmentation, two magnitudes of voltage at the critical place based on adjacent sets are determined the voltage separation, wherein, the described ratio shown according to the battery electric quantity segmentation, the magnitude of voltage of the battery that measures is divided into to a plurality of groups of the segments equal number that shows with the battery electric quantity segmentation, refer to the ratio grouping that magnitude of voltage is shown according to the battery electric quantity segmentation in the numerical value order, the ratio of the number of the magnitude of voltage comprised in each group after grouping is identical or approximate identical with the ratio that the battery electric quantity segmentation shows.
By adopting described method, because the energy that makes the each electric discharge of battery discharge in the process at the battery multiple discharge is identical or approximate identical, and measure again the magnitude of voltage of battery after each electric discharge when the voltage stabilization of battery, thereby guaranteed the accuracy of the voltage separation definite according to these magnitudes of voltage, and then guaranteed the accuracy that battery electric quantity shows, improved user's use impression, and a large amount of real net tests has further confirmed the accuracy of the present invention for the segmentation demonstration of electric device battery electric weight.
The accompanying drawing explanation
Fig. 1 is the constant-current discharge curve of battery;
Fig. 2 is the process flow diagram of the segmentation display packing of electric device battery electric weight of the present invention;
Fig. 3 is the process flow diagram of the segmentation display packing of battery capacity of mobile terminal of the present invention.
Embodiment
The present invention is directed to the current electronic device battery electric quantity and show inaccurate problem, a kind of display packing of the segmentation for the electric device battery electric weight is provided, as shown in Figure 2, the method comprises the following steps:
S21, determine the voltage separation that the battery electric quantity segmentation shows, wherein, described voltage separation is determined in the following way:
Make battery multiple discharge in electric state of saturation and measure the magnitude of voltage of battery during voltage stabilization after the each electric discharge of battery, until the magnitude of voltage of measured battery reaches the shutdown magnitude of voltage of described electronic equipment, the energy that wherein the each electric discharge of battery discharges is identical or approximate identical; And
The ratio shown according to the battery electric quantity segmentation, be divided into the magnitude of voltage of the battery that measures a plurality of groups of the segments equal number that shows with the battery electric quantity segmentation, and two magnitudes of voltage at the critical place based on adjacent sets are determined the voltage separation.
S22, according to determined voltage separation, come segmentation to show battery electric quantity.
By adopting described method, because the energy that makes the each electric discharge of battery discharge in the process at the battery multiple discharge is identical or approximate identical, and measure again the magnitude of voltage of battery after each electric discharge when the voltage stabilization of battery, thereby guaranteed the accuracy of the voltage separation definite according to these magnitudes of voltage, and then guaranteed the accuracy that battery electric quantity shows, improved user's use impression, and a large amount of real net tests has further confirmed the accuracy of the present invention for the segmentation demonstration of electric device battery electric weight.
Wherein, in step S21, the requirement that the number of times of battery discharge can show according to the segmentation of actual electrical subset battery electric quantity is determined.For example,, for the battery of same capability, for example, if the lattice number that battery electric quantity shows is more (, battery electric quantity is shown as to 20 lattice), need the number of times that increases battery discharge to record more battery voltage value, corresponding, the energy that each battery discharge discharges is corresponding reducing; On the contrary, for example, if the lattice number less (, battery electric quantity being shown as to 4 lattice) that battery electric quantity shows, than battery electric quantity being shown as to the situation of 20 lattice, the number of times of battery discharge in this case can be relatively less, corresponding, the corresponding increase of energy that each battery discharge discharges.General, the number of times of battery discharge can be positioned at 30 to 120 underranges, the energy that each battery discharge discharges can be positioned at erg-ten to 1000 joule scope, and the so-called approximate identical energy that refers to that the each electric discharge of battery discharges can allow ± and 20% fluctuation.
Wherein, in step S21, the shutdown magnitude of voltage of described electronic equipment is less than or equal to 3.5V usually.
In addition, after the each electric discharge of battery, its cell voltage has the process of a bounce-back, so need to treat the stable magnitude of voltage of measuring again battery afterwards of cell voltage, for example, the time of this wait can be equal to or greater than 1 minute.
Wherein, in step S21, the ratio that the battery electric quantity segmentation shows refers to the ratio of the electric weight that each lattice refer in the electric weight segmentation shows, for example the battery electric quantity segmentation is shown as 4 lattice demonstrations, the electric weight ratio of each lattice can be " the 4th lattice: the 3rd lattice: the 2nd lattice: the 1st lattice: 0th lattice=3:3:3:2:1 ", and the 0th lattice refer to from battery electric quantity and are shown as the empty situation to the electronic equipment shutdown.But this ratio is not limited to this, can set arbitrarily as required.In addition, in this step, the ratio shown according to the battery electric quantity segmentation, the magnitude of voltage of the battery that measures is divided into to a plurality of groups of the segments equal number that shows with the battery electric quantity segmentation, refer to the ratio grouping that magnitude of voltage is shown according to the battery electric quantity segmentation in the numerical value order, the ratio of the number of the magnitude of voltage comprised in each group after grouping is identical or approximate identical with the ratio that the battery electric quantity segmentation shows.Below be illustrated, for example, be shown as 4 lattice at battery electric quantity, and in the situation that the electric weight ratio of each lattice is " the 4th lattice: the 3rd lattice: the 2nd lattice: the 1st lattice: 0th lattice=3:3:3:2:1 ", if altogether measure 84 battery voltage values, need so these 84 battery voltage values are divided into to 5 groups by the numerical value order, in each group, the number of battery voltage value is respectively 21,21,21,14,7, and ratio is 3:3:3:2:1.For another example, if altogether obtain 86 battery voltage values, need so these 86 battery voltage values are divided into to 5 groups by the numerical value order, due to 86/12 ≈ 7.17, so can first using and 7 be distributed as common factor, the number that is battery voltage value in each group is respectively 21,21,21,14,7, then makes on this basis fine tune, makes ratio be approximately 3:3:3:2:1.For example can be to 2 magnitudes of voltage of arbitrary group of overabsorption wherein (as 23,21,21,14,7; Perhaps 21,21,21,16,7; Perhaps 21,21,21,14,9 etc.), or to 1 magnitude of voltage of wantonly two groups of each overabsorptions (as 22,22,21,14,7) wherein.Certainly in each group, the number of battery voltage value also can be taken as " 3*7.17:3*7.17:3*7.17:2*7.17:1*7.17=21.51:21.51:21.51:14. 34:7.17 ", then round up respectively and be taken as " 22:22:22:14:7 ", but due to 22+22+22+14+7 > 86, so can make the magnitude of voltage number in any a group subtract 1, in final each group, the number of battery voltage value is distributed and can or is 22,22,21,14,7 or be 22,22,22,13,7 etc. for 21,22,22,14,7.
In addition, in step S22, two magnitudes of voltage at the described critical place based on adjacent sets determine that the voltage separation comprises: one of them in two magnitudes of voltage at the critical place of described adjacent sets is made as to the voltage separation, or using the mean value of two magnitudes of voltage at the critical place of described adjacent sets as the voltage separation.Should be understood that, even for the same battery, the number of testing each time measured battery voltage value is also likely different, and then two magnitudes of voltage at the critical place of adjacent sets are also likely different, so comprehensively many experiments is determined the voltage separation.For example, voltage separation while changing to the 3rd lattice from the 4th lattice that experiment obtains for the first time is 3.92V, and the voltage separation of the 4th lattice that another experiment obtains while changing to the 3rd lattice is 3.91V, the voltage separation in the time of can selecting arbitrary magnitude of voltage between 3.91 to 3.92V to change to the 3rd lattice as the 4th final lattice.
Under preferable case, electronic equipment as herein described can be mobile terminal.Now, the described magnitude of voltage that makes the battery multiple discharge in electric state of saturation and measure battery when the rear voltage stabilization of the each electric discharge of battery, until the magnitude of voltage of measured battery reaches the shutdown magnitude of voltage of described electronic equipment, the energy that wherein the each electric discharge of battery discharges is identical or approximate identical, be specially: use the mobile terminal of the described battery in electric state of saturation repeatedly after identical talking state and each conversation, to measure again the magnitude of voltage of described battery at described mobile terminal after the holding state certain hour, until described mobile terminal shutdown, wherein, the duration of each conversation equates or approximately equal.Wherein, the duration of described each conversation can be positioned at 30 seconds to 5 minutes scopes, and the duration of each conversation can allow ± and 20% fluctuation, and the duration in holding state can be equal to or greater than 1 minute.And, in actual measuring process, each duration of call can equal standby time.In addition, the magnitude of voltage of the described battery of described measurement can comprise: the battery voltage value of for example, directly measuring described mobile terminal with high-accuracy voltage table (, precision to after radix point 4); Measured battery analog voltage is converted to digital signal and is uploaded to computing machine; Thereby process described digital signal and record by described computing machine and obtain final battery voltage value.And, when being converted to digital signal, measured battery analog voltage can adopt digital filtering described, the digital noise when reducing analog to digital conversion.
Embodiment 1
The present embodiment is for illustrating the segmentation display packing of electric device battery electric weight provided by the present invention.The designing requirement of the battery electric quantity that wherein, demonstration lattice number is 4 lattice, each lattice are corresponding is " the 4th lattice: the 3rd lattice: the 2nd lattice: the 1st lattice: 0th lattice=3:3:3:2:1 ".
Adopt the battery that NEC Corporation, model are W-1000, wherein, electronic equipment is the mobile phone that NEC Corporation, model are N8605, and the battery voltage range of this mobile phone is 3.5V-4.2V.Refer to Fig. 3, the flow process that the segmentation of the present embodiment battery electric quantity shows comprises:
S41, the battery of mobile phone is charged to state of saturation, the output voltage that is charged to battery is 4.2V;
S42, the emissive power of described mobile phone is adjusted to emissive power commonly used, i.e. 1.2w;
S43, make described mobile phone in talking state and continue one minute;
S44, make described mobile phone in holding state and continue one minute;
S45, gather the battery voltage value of described mobile phone, that is: directly measure the cell voltage of described mobile terminal by precision to the voltage table of 4 after radix point; Voltage table is converted to measured battery voltage value digital signal and is uploaded to computing machine; The computer recording data.Wherein, when being converted to digital signal by measured battery voltage value, voltage table also adopts digital filtering.
S46, judge whether this mobile terminal shuts down, if not shutdown is returned to step S43, otherwise turned to step S47.
S47, the ratio shown according to the battery electric quantity segmentation, be divided into the magnitude of voltage of the battery that measures 5 groups of the segments equal number shown with the battery electric quantity segmentation, using the mean value of two magnitudes of voltage at the critical place of described adjacent sets as boundary voltage.
S48, according to determined voltage separation, come segmentation to show battery electric quantity.
Adopt above-mentioned steps S41 to S46, once in experiment, can obtain 83 cell voltage Value Datas as shown in table 1 therein.
Table 1 adopts the resulting test data of battery electric quantity segmentation display packing of the present invention
In step S47, the magnitude of voltage of 83 batteries is divided into to " 21:21:21:14:6 ", substantially meet the designing requirement of " 3:3:3:2:1 ".The resulting corresponding boundary voltage of the present embodiment battery electric quantity segmentation display packing is:
3.50V-3.64V show 0 lattice;
3.64V-3.7V show 1 lattice;
3.7V-3.765V show 2 lattice;
3.765V-3.925V show 3 lattice;
3.925V-4.20V show 4 lattice.
Through a large amount of real net tests, show, actual result of use and the set goal are basically identical, do not exist battery electric quantity to show inaccurate phenomenon, and slightly there is error in the excessively poor place of indivedual network signals, but also in tolerance interval.
Claims (11)
1. the display packing of the segmentation for the electric device battery electric weight, the method comprises:
A) determine the voltage separation that the battery electric quantity segmentation shows; And
B) according to determined voltage separation, come segmentation to show battery electric quantity;
It is characterized in that, described voltage separation is determined in the following way:
A1) make battery multiple discharge in electric state of saturation and measure the magnitude of voltage of battery during voltage stabilization after the each electric discharge of battery, until the magnitude of voltage of measured battery reaches the shutdown magnitude of voltage of described electronic equipment, the energy that wherein the each electric discharge of battery discharges is identical or approximate identical; And
A2) ratio shown according to the battery electric quantity segmentation, the magnitude of voltage of the battery that measures is divided into to a plurality of groups of the segments equal number that shows with the battery electric quantity segmentation, two magnitudes of voltage at the critical place based on adjacent sets are determined the voltage separation, wherein, the described ratio shown according to the battery electric quantity segmentation, the magnitude of voltage of the battery that measures is divided into to a plurality of groups of the segments equal number that shows with the battery electric quantity segmentation, refer to the ratio grouping that magnitude of voltage is shown according to the battery electric quantity segmentation in the numerical value order, the ratio of the number of the magnitude of voltage comprised in each group after grouping is identical or approximate identical with the ratio that the battery electric quantity segmentation shows.
2. method according to claim 1, wherein, step a1), the number of times of battery multiple discharge is 30 to 120 times.
3. the magnitude of voltage of measuring battery method according to claim 1, wherein, step a1) after the each electric discharge of battery during voltage stabilization comprises:
Wait for 1 minute or be greater than the time of 1 minute after the each electric discharge of battery, and then measuring the magnitude of voltage of battery.
4. method according to claim 1, wherein, step a1), the shutdown magnitude of voltage of electronic equipment is less than or equal to 3.5V.
5. the energy that method according to claim 1, wherein, step a1), each electric discharge discharges is 1 to 1000 joule.
6. two magnitudes of voltage at the critical place based on adjacent sets method according to claim 1, wherein, step a2) determine that the voltage separation comprises:
One of them in two magnitudes of voltage at the critical place of described adjacent sets is made as to the voltage separation, or using the mean value of two magnitudes of voltage at the critical place of described adjacent sets as the voltage separation.
7. method according to claim 1, wherein, described electronic equipment is mobile terminal.
8. method according to claim 7, wherein, step a1) realize in the following way:
Use the mobile terminal of the described battery in electric state of saturation repeatedly after identical talking state and each conversation, to measure again the magnitude of voltage of described battery at described mobile terminal after the holding state certain hour, until described mobile terminal shutdown, wherein, the duration of each conversation equates or approximately equal.
9. method according to claim 8, wherein, the scope of the duration of described each conversation is 30 seconds to 5 minutes.
10. method according to claim 8, wherein, the described duration in holding state is equal to or greater than 1 minute.
11. method according to claim 8, wherein, the magnitude of voltage of the described battery of described measurement comprises:
Directly measure the battery voltage value of described mobile terminal with voltage table;
Measured battery analog voltage is converted to digital signal;
Obtain the magnitude of voltage of battery from described digital signal;
Wherein, at the described digital filtering that adopts when measured battery analog voltage is converted to digital signal.
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| US4413221A (en) * | 1980-12-18 | 1983-11-01 | Christie Electric Corporation | Method and circuit for determining battery capacity |
| US5214385A (en) * | 1991-05-22 | 1993-05-25 | Commonwealth Edison Company | Apparatus and method for utilizing polarization voltage to determine charge state of a battery |
| CN101212071A (en) * | 2006-12-31 | 2008-07-02 | 比亚迪股份有限公司 | Method for estimating charge state of power cell |
| CN101246977A (en) * | 2008-03-06 | 2008-08-20 | 深圳华为通信技术有限公司 | Reminding method and apparatus for mobile terminal battery power |
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- 2009-12-30 CN CN 200910266055 patent/CN102116845B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4413221A (en) * | 1980-12-18 | 1983-11-01 | Christie Electric Corporation | Method and circuit for determining battery capacity |
| US5214385A (en) * | 1991-05-22 | 1993-05-25 | Commonwealth Edison Company | Apparatus and method for utilizing polarization voltage to determine charge state of a battery |
| CN101212071A (en) * | 2006-12-31 | 2008-07-02 | 比亚迪股份有限公司 | Method for estimating charge state of power cell |
| CN101246977A (en) * | 2008-03-06 | 2008-08-20 | 深圳华为通信技术有限公司 | Reminding method and apparatus for mobile terminal battery power |
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