CN106908664A - Battery loop circuit impedance measuring method, device and mobile terminal - Google Patents
Battery loop circuit impedance measuring method, device and mobile terminal Download PDFInfo
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- CN106908664A CN106908664A CN201510971523.5A CN201510971523A CN106908664A CN 106908664 A CN106908664 A CN 106908664A CN 201510971523 A CN201510971523 A CN 201510971523A CN 106908664 A CN106908664 A CN 106908664A
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- battery
- current value
- voltage
- magnitude
- mobile terminal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
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- General Physics & Mathematics (AREA)
- Tests Of Electric Status Of Batteries (AREA)
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Abstract
The present invention provides a kind of battery loop circuit impedance measuring method, device and mobile terminal.Methods described includes：Read the current value and magnitude of voltage during cell operating status；Receive the battery open circuit voltage values of user input；The skew of battery loop circuit impedance is calculated according to the current value and magnitude of voltage, the battery open circuit voltage values of user input for being read and from the battery practical impedance of the acquisition for mobile terminal；By the battery loop circuit impedance skew write-in mobile terminal, battery loop circuit impedance is calculated with according to the battery practical impedance for reading in real time.The present invention can quickly and easily obtain battery loop circuit impedance, it is possible to increase the accuracy of battery loop circuit impedance measurement, and then improve the accuracy that battery open circuit voltage measurement and electricity show.
Description
Technical field
The present invention relates to battery measurement technical field, more particularly to a kind of battery loop circuit impedance measuring method, dress
Put and mobile terminal.
Background technology
With widely using for the consumer mobile terminal such as panel computer, mobile phone, battery of mobile terminal capacity
Measurement is increasingly developed personnel's attention.The capacity of battery of mobile terminal is changed with the change of voltage.
Therefore the inquiry of battery of mobile terminal capacity may be referred to battery open circuit voltage to obtain.Mobile terminal can be
Inside prepares an inquiry table for relation between battery capacity and open-circuit voltage, is obtained by inquiring about open-circuit voltage
Obtain battery capacity.But because cell chemistry or calibration error cause battery open circuit voltage accurate
Calculate, positioning capacity when will produce skew, cause battery capacity to show inaccurate.In reality
In border, the open-circuit voltage of battery needs to be calculated according to battery loop circuit impedance.Therefore, battery loop circuit impedance
Accurate measurement is extremely important for calculating the battery capacity of mobile terminal.
The loop circuit impedance of mobile terminal can be measured by manual type or data collecting instrument in the prior art.
Wherein：
Manual type manually extracts battery loop work status information, people by capturing the log of mobile terminal
Work measures battery open circuit voltage, and manually calculates battery loop circuit impedance.Which needs mobile terminal to have
The standby function that log is provided, it is cumbersome and be not avoided that due to mistake in computation caused by operational error.
Data collecting instrument controls the input current to battery, real time record battery using programmable data Acquisition Instrument
Working condition voltage, records battery open circuit voltage, and by working condition and open when by input current
The magnitude of voltage and input current of line state record are calculated so as to obtain battery loop circuit impedance.Although which
Battery behavior curve can be accurately measured, but is only without examining to the sampling of battery cell due to equipment
The error of mobile phone itself is considered, even therefore a very accurate battery behavior relation can not be accurate
Description current electric quantity shows, and many clients do not have this quasi-instrument.
Realize it is of the invention during, inventor find at least there is following technical problem in the prior art：
Measurement to battery loop circuit impedance in the prior art needs specific equipment, cumbersome, due to calibration
The reason such as error and operational error causes the measurement of battery loop circuit impedance to be forbidden, inaccurate so as to cause electricity to show.
The content of the invention
Battery loop circuit impedance measuring method, device and mobile terminal that the present invention is provided, can be quickly and easily
Obtain battery loop circuit impedance, it is possible to increase the accuracy of battery loop circuit impedance measurement, and then improve battery open circuit
The accuracy that voltage measurement and electricity show.
In a first aspect, the present invention provides a kind of battery loop circuit impedance measuring method, it is applied in mobile terminal,
Methods described includes：Read the current value and magnitude of voltage during cell operating status；Receive the electricity of user input
Pond open-circuit voltage values；According to the current value and magnitude of voltage, the battery open circuit voltage values of user input for being read with
And calculate the skew of battery loop circuit impedance from the battery practical impedance of the acquisition for mobile terminal；By the battery ring
Road resistance shift writes the mobile terminal, and battery loop is calculated with according to the battery practical impedance for reading in real time
Impedance.
Alternatively, it is described read cell operating status when current value and magnitude of voltage include, from the movement
The current value and magnitude of voltage during cell operating status are read in the driving layer identification code of terminal；It is described by the electricity
The pond loop circuit impedance skew write-in mobile terminal includes, by the battery loop circuit impedance skew write-in shifting
In the driving layer identification code of dynamic terminal.
Alternatively, it is described according to the current value for being read and magnitude of voltage, the battery open circuit voltage values of user input
And include from the battery practical impedance calculating battery loop circuit impedance skew of the acquisition for mobile terminal：According to institute
The current value and magnitude of voltage of reading and the battery open circuit voltage values of user input calculate battery loop circuit impedance；Root
Battery ring is calculated according to the battery loop circuit impedance for being calculated and from the battery practical impedance of the acquisition for mobile terminal
Road resistance shift.
Alternatively, the current value and magnitude of voltage during the reading cell operating status include：Repeatedly from described
Mobile terminal bottom reads the current value and magnitude of voltage during cell operating status, takes the current value of multiple reading
With the average value of magnitude of voltage, as the final current value and magnitude of voltage for reading.
Alternatively, after the current value and magnitude of voltage in the reading cell operating status, also include：
Judge whether read current value is more than predetermined threshold, if it is not, then again read off, until judging to be read
The current value for taking is more than the predetermined threshold.Alternatively, the current value in the reading cell operating status
And include after magnitude of voltage：The current value and magnitude of voltage that will be read are stored in falling for the mobile terminal
The non-erasable subregion of electricity.
Second aspect, the present invention provides a kind of battery loop circuit impedance measurement apparatus, is applied in mobile terminal,
Described device includes：Read module, for reading current value and magnitude of voltage during cell operating status；Connect
Receive module, the battery open circuit voltage values for receiving user input；First computing module, for according to being read
The current value and magnitude of voltage that take, the battery open circuit voltage values of user input and from the acquisition for mobile terminal
Battery practical impedance calculates the skew of battery loop circuit impedance；Writing module, for the battery loop circuit impedance is inclined
Move the write-in mobile terminal；Second computing module, for according to the actual resistance of battery read under different conditions
Anti- calculating battery loop circuit impedance.
Alternatively, the read module is battery operated for being read from the driving layer identification code of the mobile terminal
Current value and magnitude of voltage during state；Said write module is used to for the battery loop circuit impedance to offset write-in
In the driving layer identification code of the mobile terminal.
Alternatively, first computing module is used for defeated according to the current value and magnitude of voltage that are read and user
The battery open circuit voltage values that enter calculate battery loop circuit impedance, and according to the battery loop circuit impedance for being calculated and from
The battery practical impedance of the acquisition for mobile terminal calculates the skew of battery loop circuit impedance.
Alternatively, when the read module is used to repeatedly read cell operating status from the mobile terminal bottom
Current value and magnitude of voltage, the current value of multiple reading and the average value of magnitude of voltage are taken, as final reading
Current value and magnitude of voltage.
Alternatively, whether described device also includes judge module, for judging read current value more than pre-
Determine threshold value, if it is not, then again read off by read module, until judging that read current value is more than institute
State predetermined threshold.
Alternatively, described device also includes preserving module, and the current value and magnitude of voltage for that will be read are protected
There is the non-erasable subregion of power down of the mobile terminal.
The third aspect, the present invention provides a kind of mobile terminal, and the mobile terminal hinders including the battery loop
Anti- measurement apparatus.
Battery loop circuit impedance measuring method provided in an embodiment of the present invention, device and mobile terminal, obtain battery
Voltage and electric current are descended in working order, data is preserved using software approach, then according to battery reality
Open-circuit voltage is calculated, and result of calculation covers the influence that battery virtual height and calibration error are produced, in acquiescence
Offset on the basis of impedance.Battery loop circuit impedance measuring method provided by the present invention, being capable of rapid and convenient
Ground obtains battery loop circuit impedance, it is possible to increase the accuracy of battery loop circuit impedance measurement, and then raising battery is opened
The accuracy that road voltage measurement and electricity show.
Brief description of the drawings
Fig. 1 is the flow chart of one embodiment of the invention battery loop circuit impedance measuring method；
Fig. 2 is the flow chart of another embodiment of the present invention battery loop circuit impedance measuring method；
Fig. 3 is the structural representation of one embodiment of the invention battery loop circuit impedance measurement apparatus.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the present invention
Accompanying drawing in embodiment, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that
Described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the institute that those of ordinary skill in the art are obtained under the premise of creative work is not made
There is other embodiment, belong to the scope of protection of the invention.
The present invention provides a kind of battery loop circuit impedance measuring method, as shown in figure 1, methods described includes：
Current value and magnitude of voltage when S11, reading cell operating status；
S12, the battery open circuit voltage values for receiving user input；
S13, current value and magnitude of voltage according to being read, battery open circuit voltage values of user input and from institute
The battery practical impedance for stating acquisition for mobile terminal calculates the skew of battery loop circuit impedance；
S14, by the battery loop circuit impedance skew write-in mobile terminal, with according to the battery for reading in real time
Practical impedance calculates battery loop circuit impedance.
Battery loop circuit impedance measuring method provided in an embodiment of the present invention, obtains battery and descends voltage in working order
And electric current, data are preserved using software approach, then calculated according to the actual open-circuit voltage of battery,
Result of calculation covers the influence that battery virtual height and calibration error are produced, and is offset on the basis of impedance is given tacit consent to.
Battery loop circuit impedance measuring method provided by the present invention, can quickly and easily obtain battery loop circuit impedance,
The accuracy of battery loop circuit impedance measurement can be improved, and then the measurement of raising battery open circuit voltage and electricity are aobvious
The accuracy shown.
Further, as shown in Fig. 2 the battery loop circuit impedance measuring method that the present invention is provided includes：
S21, using platform Coulomb meter (FGU：Fuel Gauge Unit) may be read into battery current and voltage
Function based on, from mobile terminal drive layer identification code in obtain battery in working order under voltage Vbat
And electric current I_real.Wherein, Vbat is analog-digital converter (ADC:Analog-to-digital converter)
The magnitude of voltage for reading, I_real is the current value that hardware is obtained.
Wherein, current value and magnitude of voltage when repeatedly reading cell operating status from the mobile terminal bottom,
The average value of the current value and magnitude of voltage that take multiple reading (for example takes the electric current after the debounce read in 500ms
The average value of value and magnitude of voltage), as the final current value I_real and magnitude of voltage Vbat for reading.
Whether the read current value I_real of S22, judgement is more than predetermined threshold, and the predetermined threshold is, for example,
250ma, if it is not, then again read off, until judging that read current value I_real is more than the predetermined threshold
Value.
It is to calculate increase when internal resistance offsets to calculate denominator that test electric current is limited higher than the purpose of predetermined threshold
Numerical value, improves accuracy in computation.The general charging measurement when charge capacity is less than 70% can be carried out, in electric discharge
When need to open wifi bluetooths and LCD backlight be adjusted to it is most bright.
S23, the current value that will be read and magnitude of voltage are stored in non-erasable point of the power down of the mobile terminal
Area.
S24, the battery extraction by mobile terminal, measure the open-circuit voltage of mobile terminal.
Battery can chemically react in charge and discharge process, and lithium ion can polarize at the two poles of the earth, the phenomenon of performance
It is exactly that open-circuit voltage is raised.Therefore, need to extract on the battery of mobile terminal when open-circuit voltage is measured, it is quiet
Put more than 20 minutes and measure, it is therefore an objective to allow battery chemistries effect to disappear.Battery open circuit electricity in this time
Pressure can slowly decline, and final result is recorded as the battery open circuit voltage Vocv of measurement.
After S25, restarting mobile terminal, receive the measured battery open circuit voltage Vocv of user input.
Increase testing tool interface in the terminal, the battery open circuit voltage Vocv for being input into user's measurement.
After restarting mobile terminal, into testing tool interface.The testing tool is in data receiver pattern, this
When, the battery open circuit voltage Vocv inputs that user will can measure.
S26, according to current value I_real and magnitude of voltage Vbat, the battery open circuit voltage of user input for being read
Value Vocv and the battery practical impedance R_real obtained from mobile terminal software configuration calculate the resistance of battery loop
Anti- skew R_offset.
First, according to the current value I_real and the battery open circuit of magnitude of voltage Vbat and user input for being read
Magnitude of voltage Vocv calculates battery loop circuit impedance R_sense, R_sense=(Vocv-Vbat)/I_real.Battery
The virtual height that loop circuit impedance R_sense is produced comprising battery practical impedance R_real, calibration error and battery polarization
R_offset。
Then, according to the battery practical impedance R_real obtained in being configured from mobile terminal software and tried to achieve
Battery loop circuit impedance R_sense calculate the skew of battery loop circuit impedance R_offset, R_offset=R_sense-
R_real.Wherein R_real is the battery behavior value provided by battery manufacturer, and this numerical value is dynamic according to volume temperature
State change, the software of mobile terminal can obtain corresponding R_real values according to the volume temperature of battery.
S27, the battery loop circuit impedance that will be calculated skew R_offset are written in driving layer identification code, work as battery
During in different conditions, by including this calculations of offset, battery is calculated according to the real-time battery practical impedance for reading
Loop circuit impedance.And then, according to the real-time current value for reading and magnitude of voltage, the loop resistance of the battery for being calculated
The anti-open-circuit voltage for calculating the battery under the state, so as to obtain relatively accurate battery capacity.
The embodiment of the present invention also provides a kind of battery loop circuit impedance measurement apparatus, as shown in figure 3, described device
Mould is calculated including read module 11, receiver module 12, the first computing module 13, writing module 14, second
Block 15.
Read module 11 is used to read the current value and magnitude of voltage during cell operating status.Preferably, read
Module 11 is used to be read from the driving layer identification code of mobile terminal the current value and voltage during cell operating status
Value.Wherein, electricity when read module 11 repeatedly can read cell operating status from the mobile terminal bottom
Flow valuve and magnitude of voltage, take the current value of multiple reading and the average value of magnitude of voltage, as the final electricity for reading
Flow valuve and magnitude of voltage.The battery loop circuit impedance measurement apparatus may further include judge module, for sentencing
Whether disconnected read current value is more than predetermined threshold, if it is not, then again read off by read module, directly
It is more than the predetermined threshold to the read current value of judgement.
Receiver module 12 is used to receive the battery open circuit voltage values of user input.Wherein, the battery open circuit voltage
Value is extracted battery from mobile terminal by user, is stood and is measured what is obtained in more than 20 minutes.Can be mobile whole
Increase testing tool interface in end, the battery open circuit voltage values for being input into user's measurement.
First computing module 13 is used for according to current value and magnitude of voltage, the battery open circuit of user input for being read
Magnitude of voltage and the battery practical impedance calculating battery loop circuit impedance skew from the acquisition for mobile terminal.
Writing module 14 is used for the battery loop circuit impedance skew write-in mobile terminal, it is preferable that write
Enter mobile terminal drive layer identification code in.
Second computing module 15, for calculating battery loop according to the battery practical impedance read under different conditions
Impedance.When battery is in different conditions, by including this calculations of offset, according to the real-time battery reality for reading
The loop circuit impedance of impedance computation battery.And then, according to the real-time current value for reading and magnitude of voltage, calculated
The loop circuit impedance of battery calculates the open-circuit voltage of the battery under the state, so as to obtain relatively accurate battery hold
Amount.
Preferably, described device can also include preserving module, for the current value and voltage that will be read
Value preserve the non-erasable subregion of power down of the mobile terminal.
Battery loop circuit impedance measurement apparatus provided in an embodiment of the present invention, obtain battery and descend voltage in working order
And electric current, data are preserved using software approach, then calculated according to the actual open-circuit voltage of battery,
Result of calculation covers the influence that battery virtual height and calibration error are produced, and is offset on the basis of impedance is given tacit consent to.
Battery loop circuit impedance measuring method provided by the present invention, can quickly and easily obtain battery loop circuit impedance,
The accuracy of battery loop circuit impedance measurement can be improved, and then the measurement of raising battery open circuit voltage and electricity are aobvious
The accuracy shown.
The embodiment of the present invention also provides a kind of mobile terminal, and the mobile terminal includes above-mentioned battery loop circuit impedance
Measurement apparatus.
One of ordinary skill in the art will appreciate that all or part of flow in realizing above-described embodiment method,
Computer program be can be by instruct the hardware of correlation to complete, described program can be stored in a calculating
In machine read/write memory medium, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.
Wherein, described storage medium can for magnetic disc, CD, read-only memory (Read-Only Memory,
) or random access memory (Random Access Memory, RAM) etc. ROM.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited to
This, any one skilled in the art the invention discloses technical scope in, can readily occur in
Change or replacement, should all be included within the scope of the present invention.Therefore, protection scope of the present invention
Should be defined by scope of the claims.
Claims (13)
1. a kind of battery loop circuit impedance measuring method, is applied in mobile terminal, it is characterised in that the side
Method includes：
Read the current value and magnitude of voltage during cell operating status；
Receive the battery open circuit voltage values of user input；
According to the current value and magnitude of voltage, the battery open circuit voltage values of user input for being read and from the shifting
The battery practical impedance that dynamic terminal is obtained calculates the skew of battery loop circuit impedance；
By the battery loop circuit impedance skew write-in mobile terminal, with according to the battery reality for reading in real time
Impedance computation battery loop circuit impedance.
2. method according to claim 1, it is characterised in that during the reading cell operating status
Current value and magnitude of voltage include：When reading cell operating status from the driving layer identification code of the mobile terminal
Current value and magnitude of voltage；
It is described to include the battery loop circuit impedance skew write-in mobile terminal：By battery loop resistance
In the driving layer identification code of the anti-skew write-in mobile terminal.
3. method according to claim 1, it is characterised in that it is described according to the current value for being read and
Magnitude of voltage, the battery open circuit voltage values of user input and the battery practical impedance from the acquisition for mobile terminal
Calculating the skew of battery loop circuit impedance includes：
Battery open circuit voltage values according to the current value and magnitude of voltage and user input for being read calculate battery ring
Roadlock resists；
Calculated according to the battery loop circuit impedance for being calculated and from the battery practical impedance of the acquisition for mobile terminal
Battery loop circuit impedance offsets.
4. the method according to any one of claim 1 or 3, it is characterised in that the reading battery
Current value and magnitude of voltage during working condition include：Repeatedly driven in layer identification code from the mobile terminal and read
Current value and magnitude of voltage during cell operating status, take the current value of multiple reading and the average value of magnitude of voltage,
As the final current value and magnitude of voltage for reading.
5. the method according to any one of claim 1-3, it is characterised in that in the reading battery
After current value and magnitude of voltage during working condition, also include：
Judge whether read current value is more than predetermined threshold, if it is not, then again read off, until judging
The current value for being read is more than the predetermined threshold.
6. the method according to any one of claim 1-3, it is characterised in that in the reading battery
After current value and magnitude of voltage during working condition, also include：
The current value and magnitude of voltage that will be read are stored in the non-erasable subregion of power down of the mobile terminal.
7. a kind of battery loop circuit impedance measurement apparatus, in mobile terminal, it is characterised in that described device
Including：
Read module, for reading current value and magnitude of voltage during cell operating status；
Receiver module, the battery open circuit voltage values for receiving user input；
First computing module, for according to current value and magnitude of voltage, the battery open circuit of user input for being read
Magnitude of voltage and the battery practical impedance calculating battery loop circuit impedance skew from the acquisition for mobile terminal；
Writing module, for battery loop circuit impedance skew to be write into the mobile terminal；
Second computing module, for calculating the resistance of battery loop according to the battery practical impedance read under different conditions
It is anti-.
8. device according to claim 7, it is characterised in that the read module, for from described
The current value and magnitude of voltage during cell operating status are read in the driving layer identification code of mobile terminal；
Said write module, the driving layer for battery loop circuit impedance skew to be write the mobile terminal
In code.
9. device according to claim 7, it is characterised in that first computing module, for root
Battery loop is calculated according to the battery open circuit voltage values of the current value and magnitude of voltage and user input for being read to hinder
It is anti-, and according to the battery loop circuit impedance for being calculated and the battery practical impedance meter from the acquisition for mobile terminal
Calculate the skew of battery loop circuit impedance.
10. the device according to any one of claim 7 or 9, it is characterised in that the reading mould
Block, for repeatedly from the mobile terminal drive layer identification code in read cell operating status when current value and
Magnitude of voltage, takes the current value of multiple reading and the average value of magnitude of voltage, as the final current value and electricity for reading
Pressure value.
11. device according to any one of claim 7-9, it is characterised in that also include：
Judge module, for judging whether read current value is more than predetermined threshold, if it is not, then passing through
Read module again reads off, until judging that read current value is more than the predetermined threshold.
12. device according to any one of claim 7-9, it is characterised in that also include：
Preserving module, current value and magnitude of voltage for that will be read are stored in the power down of the mobile terminal
Non-erasable subregion.
13. a kind of mobile terminals, it is characterised in that including as any one of claim 7 to 12
Battery loop circuit impedance measurement apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510971523.5A CN106908664A (en) | 2015-12-22 | 2015-12-22 | Battery loop circuit impedance measuring method, device and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510971523.5A CN106908664A (en) | 2015-12-22 | 2015-12-22 | Battery loop circuit impedance measuring method, device and mobile terminal |
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| CN106908664A true CN106908664A (en) | 2017-06-30 |
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ID=59199639
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| CN201510971523.5A Pending CN106908664A (en) | 2015-12-22 | 2015-12-22 | Battery loop circuit impedance measuring method, device and mobile terminal |
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Cited By (1)
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| CN110945369A (en) * | 2018-09-30 | 2020-03-31 | Oppo广东移动通信有限公司 | System and method for testing charging device |
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Application publication date: 20170630 |