CN108267703A - Electric quantity metering accuracy checking method, its device and computer storage media - Google Patents
Electric quantity metering accuracy checking method, its device and computer storage media Download PDFInfo
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- CN108267703A CN108267703A CN201810054356.1A CN201810054356A CN108267703A CN 108267703 A CN108267703 A CN 108267703A CN 201810054356 A CN201810054356 A CN 201810054356A CN 108267703 A CN108267703 A CN 108267703A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/001—Measuring real or reactive component; Measuring apparent energy
- G01R21/002—Measuring real component
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3828—Arrangements for monitoring battery or accumulator variables, e.g. SoC using current integration
Abstract
The present invention relates to a kind of electric quantity metering accuracy checking method, its device and computer storage medias.The electric quantity metering accuracy checking method includes：Obtain the current parameters of power supply；Current parameters are integrated, calculates in the corresponding period and uses electricity；According to described using electricity, the current true electricity of power supply is calculated；According to the true electricity and detection electricity, the error of electric quantity metering is determined.Mode the process employs current integration calculates the electricity of lithium battery, can obtain very high data precision, and the state for calculating electricity can be very accurate, and guarantee is provided for the assessment of high-precision electricity, can be as the basis for examining electric quantity metering scheme.
Description
【Technical field】
The present invention relates to electric quantity metering technical field more particularly to a kind of electric quantity metering accuracy checking method, its device and
Computer storage media.
【Background technology】
Lithium battery is based on its performance and uses upper advantage, has begun to be widely used in each different field, make
It is used for DC power supply.Many kinds of different, the electric quantity metering schemes based on lithium battery are provided in the prior art, are obtained
Corresponding battery level information is in the operational management of lithium battery.
Different electric quantity metering schemes have the characteristics that corresponding and measuring accuracy, difference or the purpose that uses due to field
Difference, people are also not quite similar to the required precision of the electric quantity metering of lithium battery.
In specific field, such as the fields such as unmanned plane, intelligent robot, Medical Devices, the precision of electric quantity metering may
It can influence or determine the performance of product, need design and use that there is the electric quantity metering scheme of enough accuracy.
And the promotion of electric quantity metering scheme testing accuracy and final compliance test result are all verification methods with high precision
Premised on.Therefore, it is that people expect to solve the problems, such as that assessment how is accurately carried out to the precision of electric quantity metering scheme.
【Invention content】
In order to solve the above-mentioned technical problem, the embodiment of the present invention provides one kind and electric quantity metering scheme accurately can be commented
Electric quantity metering accuracy checking method, its device and the computer storage media estimated.
In order to solve the above technical problems, the embodiment of the present invention provides following technical scheme：A kind of electric quantity metering accuracy detection
Method.The electric quantity metering accuracy checking method includes：Obtain the current parameters of power supply；Current parameters are integrated, are calculated
Electricity is used in the corresponding period；According to described using electricity, the current true electricity of power supply is calculated；According to the true electricity
Amount and detection electricity, determine the error of electric quantity metering.
Optionally, it is described to use electricity according to described, the current true electricity of power supply is calculated, is specifically included：
Determine the full charge of power supply；Electricity and the full charge are used according to described, calculates current true of power supply
Electricity.
Optionally, the full charge of the determining power supply, specifically includes：It discharges the power supply completely filled, and acquires institute
State the discharge current of power supply；When the corona discharge to blanking voltage point, total discharge time of the power supply is recorded；Described section
Only electrical voltage point is the blanking voltage point that battery core nominal capacity is 0；Calculate the product of the discharge current flowed through in total discharge time
Point, as the full charge
Optionally, the current parameters for obtaining power supply, specifically include：With the scheduled period, the electric discharge electricity of power supply is acquired
Stream；Determine the average discharge current in different cycles.
Optionally, it is described that current parameters are integrated, it calculates in the corresponding period and uses electricity, specifically include：It will
The average discharge current is multiplied with the duration in the period, and obtain current period uses electricity；In the cumulative corresponding period
Institute is rhythmic using electricity, obtains in the corresponding period and uses electricity.
Optionally, it is described according to the true electricity and detection electricity, it determines the error of electric quantity metering, specifically includes：Meter
Calculate the error between the true electricity of different sampling stages and detection electricity；It is bent with the variation in sampling time to generate the error
Line.
In order to solve the above technical problems, the embodiment of the present invention also provides following technical scheme：
A kind of electric quantity metering accuracy detecting device.The electric quantity metering accuracy detecting device includes：Parameter collection module is used
In the current parameters for obtaining power supply；Integral and calculating module, for being integrated to current parameters, calculating made in the corresponding period
Electricity consumption；Electricity computing module, for, using electricity, calculating the current true electricity of power supply according to described；Error calculating module,
For according to the true electricity and detection electricity, determining the error of electric quantity metering.
Optionally, the electricity computing module includes：Full charge computing unit and current electric quantity computing unit；It is described
Full charge computing unit is used to determine the full charge of power supply；The current electric quantity computing unit is used for according to described using electricity
Amount and the full charge calculate the current true electricity of power supply.
Optionally, the full charge computing unit is specifically used for：It discharges the power supply completely filled, and acquires the electricity
The discharge current in source；When the corona discharge to blanking voltage point, total discharge time of the power supply is recorded；The cut-off electricity
Pressure point is the supply voltage when electricity scheme of power supply is set as 0；The discharge current that calculating is flowed through in total discharge time
Integration, as the full charge.
Optionally, the parameter collection module is specifically used for：With the scheduled period, the discharge current of power supply is acquired, and
Determine the average discharge current in different cycles.
Optionally, the integral and calculating module is specifically used for：By the average discharge current and the when appearance in the period
Multiply, obtain the electricity that uses of current period, and institute is rhythmic using electricity in the cumulative corresponding period, obtains the corresponding time
Electricity is used in section.
Optionally, the error calculating module is specifically used for：It calculates in the true electricity of different sampling stages and detection electricity
Error between amount；Generate change curve of the error with the sampling time.
In order to solve the above technical problems, the embodiment of the present invention also provides following technical scheme：A kind of computer storage media,
It is stored thereon with computer program.The computer program realizes that electricity as described above calculates accuracy of measurement when being executed by processor
The step of detection method.
Compared with prior art, the electricity of the embodiment of the present invention calculates accuracy of measurement detection method and employs current integration
Mode calculates the electricity of lithium battery, can obtain very high data precision, and the state for calculating electricity can be very accurate,
Guarantee is provided for the assessment of high-precision electricity, it can be as the basis for examining electric quantity metering scheme.
【Description of the drawings】
One or more embodiments are illustrated by the picture in corresponding attached drawing, these exemplary theorys
The bright restriction not formed to embodiment, the element for having same reference numbers label in attached drawing are expressed as similar element, remove
Non- have a special statement, and composition does not limit the figure in attached drawing.
Fig. 1 is the application environment schematic diagram of the embodiment of the present invention；
Fig. 2 is the structure diagram of assessment system provided in an embodiment of the present invention；
Fig. 3 is the method flow diagram that electricity provided in an embodiment of the present invention calculates accuracy of measurement detection method；
Fig. 4 is the method flow diagram provided in an embodiment of the present invention for calculating full charge；
Fig. 5 is error curve provided in an embodiment of the present invention；
Fig. 6 is the functional block diagram that electricity provided in an embodiment of the present invention calculates accuracy of measurement detection device；
Fig. 7 is the parameter table of lithium battery discharge process provided in an embodiment of the present invention.
【Specific embodiment】
For the ease of understanding the present invention, in the following with reference to the drawings and specific embodiments, the present invention will be described in more detail.
It should be noted that when element is expressed " being fixed on " another element, it can directly on another element or therebetween
There may be one or more elements placed in the middle.When an element is expressed " connection " another element, it can directly be connected
It is connected to another element or there may be one or more elements placed in the middle therebetween.Term used in this specification " on ",
" under ", " interior ", " outer ", the orientation of the instructions such as " bottom " or position relationship be based on orientation shown in the drawings or position relationship, only
It is that the present invention must have specifically with the device for describing rather than indicate or imply meaning or element is simplified for ease of description
Orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " the
Two " " thirds " etc. are only used for description purpose, and it is not intended that instruction or hint relative importance.
Unless otherwise defined, technical and scientific term all used in this specification is led with belonging to the technology of the present invention
The normally understood meaning of technical staff in domain is identical.Used term is only in the description of the invention in this specification
The purpose of description specific embodiment is not intended to the limitation present invention.Term "and/or" used in this specification includes one
The arbitrary and all combination of a or multiple relevant Listed Items.
In addition, as long as technical characteristic involved in invention described below difference embodiment is not formed each other
Conflict can be combined with each other.
Fig. 1 is application environment provided in an embodiment of the present invention.As shown in Figure 1, the application environment include test device 10,
Assessment system 20 and lithium battery 30.
Lithium battery 30 is the battery pack of one or more battery core, in any form arrangement form, for for motor etc.
Electrical equipment provides DC power supply.Lithium battery 30 can have corresponding capacity, volume size or encapsulation according to actual conditions
Form.Lithium battery 30 can discharge or charge in the case of controlled, simulate normal work operating condition.
Test device 10 can be the electric quantity measuring system of any types or brand, be counted by acquiring corresponding data
Calculate the charge condition for determining that lithium battery is current.The test device can run one or more kinds of suitable software programs, note
It records data and carries out operation based on these data.
Established between test device 10 and lithium battery 30 it is necessary to electric connection, test device 10 electrically connected by these
It connects acquisition, obtain the data of lithium battery 30 to determine the current electricity of lithium battery.
Being established between assessment system 20 and the test device 10 has communication connection, and test dress is obtained by the communication connection
10 data are put, and perform preset check and evaluation method, electric quantity metering data are obtained with 10 measuring and calculation of evaluation test device
Error.Assessment system 20 can be realized based on existing any kind of electronic computing system.
Fig. 2 is the structure diagram of assessment system 20 provided in an embodiment of the present invention.As shown in Fig. 2, the assessment system 20 can
To include：Processor 21, memory 22, input unit 23, display screen 24 and communication module 25.
Pass through bus between the processor 21, memory 22, input unit 23, display screen 24 and communication module 25
Mode establishes arbitrary communication connection between the two.
Processor 21 is any kind of single thread or multithreading, has the processing of one or more processing core
Device, as the control core of assessment system 20, for obtaining data, performing logical operation function and issuing calculation process knot
Fruit.
A kind of non-volatile computer readable storage medium storing program for executing of the conduct of memory 22, a for example, at least disk memory,
Flush memory device, relative to the remotely located distributed storage device of processor 21 or other non-volatile solid state memory parts.
Memory 22 can have program storage area, for storing non-volatile software program, non-volatile computer can
Program and module are performed, is called for processor 21 so that processor 21 performs one or more method and step.Memory 22
There can also be data storage area, to store the calculation process result that processor 21 issues output.
Input unit 23 is the user interaction device for acquiring user input instruction, such as mouse, keyboard, touch panel
Or other input equipments.Input unit 23 receive it is input by user number or character information, be supplied to processor 21 so that
Processor 21 performs corresponding control instruction.
Display screen 24 is in a specified pattern, the display equipment of corresponding data being shown to user, can appoint
Display, such as light-emitting diode display, crt display unit or the LCD display of what type.Display screen 24 is received by processor
The display information of 21 outputs, and be converted to image information accordingly and be supplied to user.
Communication module 25 is communicated to connect for being established with test device 10, provides the function module of physical channel.Communication
Module 25 can be any kind of wireless either wire communication module such as WiFi module, bluetooth module or network joint
Deng.Communication module 25 can also be established with the terminal of periphery and be connected, terminal to the periphery provide assessment system 20 calculate obtain or
The information that person receives.For example, communication module 25 can be connect with server, corresponding data are uploaded to server.
Fig. 3 is the method flow diagram of electric quantity metering accuracy checking method provided in an embodiment of the present invention.Method shown in Fig. 3
It can be performed by above-mentioned assessment system 20, to assess the electric quantity test result of lithium battery test device 10, really
Its fixed error.
As shown in figure 3, this method specifically may include steps of：
310th, the current parameters of power supply are obtained.
The current parameters refer at a time or in some period, power supply (lithium battery i.e. to be detected) electric discharge or
Person's charging current.
For most of usage scenario, power supply is the part being primarily upon in the electric quantity metering of discharge regime.Electricity
The precision of gauge amount is typically also the Accuracy extimate for referring to and discharging for lithium battery.Easy for statement, only description is for electric discharge below
The detection of electric quantity metering precision in the process.
320th, current parameters are integrated, calculates in the corresponding period and use electricity.
After above-mentioned current parameters are obtained, after the mathematical operation integrated to it, it can obtain in a timing
Between the electricity that consumes in section.Here, term as " using electricity " is used to represent what lithium battery exported in special time period
Electricity.
330th, according to described the current true electricity of power supply is calculated using electricity.
It is one since step 320 is the electricity for the lithium battery actual consumption that acquisition is calculated by way of integral operation
A very standard and accurate SOC values.Therefore, it is current really remaining that acquisition lithium battery can be calculated in this, as standard
True electricity.
340th, according to the true electricity and detection electricity, the error of electric quantity metering is determined.
Detection electricity refers to the lithium battery current electric quantity that assessment system 20 is obtained by the detection of detection device 10.Assessment system
20 using true electricity as reference standard, to determine error existing for detection electricity.
The error of the electric quantity metering can specifically be represented by various ways.For example, current electric quantity can be obtained
After difference between detection electricity, the ratio of true electricity is accounted for by difference to represent the error of electric quantity metering.
In the present embodiment, the mode for employing current integration calculates the electricity of lithium battery, and it is accurate to obtain
Electric quantity consumption situation, and the electric quantity metering of lithium battery is evaluated in this, as the standard of assessment, there is higher detection
Precision can be widely used in different electric quantity metering schemes.
In some embodiments, in order to calculate the current true electricity of power supply, may be used expiring for predetermined power supply fills
Electricity.Then, full charge and true electricity are sought into difference to calculate the current true electricity of power supply.
The full charge refers to that lithium battery (reaches scheduled charging generally according to lithium battery after charging complete in charging
Voltage judges), possessed electricity.
Fig. 4 is the method flow diagram provided in an embodiment of the present invention for being used to determine full charge.As shown in figure 4, the side
Method may include steps of：
410th, it discharges the power supply completely filled, and acquires the discharge current of the power supply.
Electric discharge refers to connect lithium battery, the process for consuming the electricity of lithium battery.It specifically can be special by accessing
The mode of fixed load is realized.In discharge process, assessment system 20 can acquire the electric discharge of lithium battery by detection device 10
Electric current.
The discharge current can be specifically a variety of different current parameters, including but not limited to transient current, collection period
Interior average current etc..
420th, when the corona discharge to blanking voltage point, total discharge time of the power supply is recorded.
During the charge and discharge use of lithium battery, there are two different use state nodes for tool.One of them is lithium electricity
The fully charged state in pond.The other is the zero power state of lithium battery.Wherein, fully charged state refers to that lithium battery adequately fills
Electricity has highest electricity.And to be lithium battery be substantially discharged zero power state, reaches the cut-off that battery core nominal capacity is 0
Electrical voltage point.
As described above, with fully charged state judge it is similar, above-mentioned blanking voltage point be battery core nominal capacity be 0 cut
Only electrical voltage point.Also it is, when the voltage for detecting lithium battery has reached the blanking voltage point, to have shown the electricity of lithium battery
Through being at 0 point.
430th, the integration of the discharge current flowed through in total discharge time is calculated, as the full charge.
Assessment system 20 can calculate lithium electricity after determining that lithium battery has been substantially discharged by the method for integration
Pond in fully charged state between zero power state, the discharge electricity amount of output or consumption, as full charge.
Above-mentioned total discharge time refers to blanking voltage point of the lithium battery from the ceiling voltage of fully charged state to zero power state
Between discharge time for undergoing.Lithium battery consumption in the process is equivalent to integration of the discharge current on total discharge time
Electricity.
Therefore, the full charge for calculating acquisition is unusual standard, based on it, calculates the true electricity phase of acquisition
That answers also has very high accuracy, can be applied to the accuracy of assessment electric quantity metering.
Below by taking the method for the discharge current of the conventional use of periodically acquisition lithium battery 30 of detection device 10 as an example, in detail
Electric quantity metering accuracy checking method provided in an embodiment of the present invention is described.
1) with the scheduled sampling period, discharge current, time, state of charge, the lithium electricity of power supply are acquired by detection device
The parameters such as the battery core voltage in pond.
2) it obtains or calculates in each sampling period, the average discharge current of lithium battery.
3) average discharge current is multiplied with the duration in sampling period, obtain current sample period uses electricity.
This using electricity with the use electricity formerly accumulated is added up, current use electricity can be obtained.
4) full charge will be obtained ahead of time and subtracted each other using electricity, the difference acquired is the current true electricity of lithium battery
Amount.
5) the true electricity obtained is calculated as standard using step 4), calculates the mistake with the state of charge of detection device metering
Difference.
6) after calculating the error for obtaining multiple sampling times, the error curve of error following sampling time change is generated,
To represent the electric quantity metering precision of detection device.For example, the error of detection device provided in an embodiment of the present invention shown in fig. 5
Curve synoptic diagram.
As shown in figure 5, with the progress that lithium battery discharges, the error of detection device becomes larger, but total ripple range
Within 4%.The size of the curve values has reacted the height of the electric quantity metering precision of detection device.
By taking the electric quantity metering chip of TI as an example, calculated using electric quantity metering accuracy checking method provided in an embodiment of the present invention
After find：Usually the voltameter error with impedance track algorithm can accomplish within 3%, the electricity based on Voltage Compensation Control Method
Meter can accomplish the error within 5%.
In addition, the correct setting of voltameter parameter, the factors such as battery core and the matching degree of chemistry ID also can be significantly
Influence the precision of voltameter or electricity scheme.
When therefore, using electric quantity metering accuracy checking method provided in an embodiment of the present invention, corresponding error can be provided
Data, so as to further verify or examine whether the electricity scheme used is correctly set, whether battery core matches, and has good
Good application prospect.
When electric quantity metering chip described in detail below using TI is as detection device 10, the voltameter of the execution of assessment system 10
The detailed process of accuracy of measurement detection method：
First, sample lithium battery is full of in advance, and certain current discharge is to blanking voltage point.It records in whole process,
The battery core voltage of sampling time, average current, detection electricity and lithium battery that the detection of detection device 10 obtains.
The above-mentioned data of software records such as corresponding bqstudio, EVM, Arbin, Maccor can be specifically used, and whole
It manages as form as shown in Figure 7.
In the figure 7, ElapsedTime is the sampling time (cycle length in i.e. each sampling period), and AvgCurrent is
Average current, Cell_Vlltage are battery core voltage, and SOC_gauge is detection electricity, as a percentage.
2nd, the electricity flowed through by the calculating of following formula in special time period：
DQ=(ElapsedTimeN+1-ElapsedTimeN)×AvgCurrentN/3600+Calculated_dQ N-1
Wherein, dQ is electricity, and N is n-th of sampling period.Calculated_dQN-1A upper sampling period adds up
Charge value.
In the present embodiment, the sampling time unit of detection device 10 is S, for convenience's sake, is converted into hour,
So that the final electricity result obtained that calculates is common electric quantity unit (mAh).
3rd, for specific lithium battery, calculate what is obtained by above-mentioned steps, in lithium battery from fully charged state to zero
The electricity that the time of state of charge is flowed through is expiring for lithium battery to fill capacity.
4th, it after the expiring and fill capacity of lithium battery is predefined, can be calculated in some sampling period by following formula
Remaining capacity：
Calculated_RM=FCC_true-Calculated_dQN
Wherein, Calculated_RM is true electricity, and FCC_true is full charge, Calculated_dQNIt is current
The electricity that sampling period is flowed through.
Then, according to remaining capacity, the true electricity Calculated_ of lithium battery is calculated using following electricity calculation formula
SOC (i.e. remaining capacity takes the percentage of charge volume)：
Calculated_SOC=Calculated_RM/FCC_true*100
5th, the detection electricity obtained in current sample period, detection device 10 is got, is calculated using formula is calculated as below
Difference between the detection electricity and true electricity determines the error SOC_error of detection device 10：
SOC_error=Calculated_SOCN-SOC_gaugeN
Wherein, Calculated_SOCN represents the calculating state of charge of corresponding time, and SOC_gaugeN represents the corresponding time
Practical state of charge.
After the error for determining multiple sampling periods (i.e. sampling time point), can data based on this, draw
Into corresponding table (such as table as shown in Figure 7) or curve (such as error curve as shown in Figure 5), to user's exhibition
Show, these error informations are provided.Wherein, Fig. 5 is that error information shown in Fig. 7 draws the error curve obtained.
The embodiment of the present invention also further provides a kind of electric quantity metering accuracy detecting device.Fig. 6 is implemented for the present invention
The functional block diagram for the electric quantity metering accuracy detecting device that example provides.As shown in fig. 6, the electric quantity metering accuracy detecting device includes：
Parameter collection module 610, integral and calculating module 620, electricity computing module 630 and error calculating module 640.
Wherein, parameter collection module 610 is used to obtain the current parameters of power supply.Integral and calculating module 620 is used for electric current
Parameter is integrated, and is calculated in the corresponding period and is used electricity；Electricity computing module 630 is used to use electricity according to described,
Calculate the current true electricity of power supply.Error calculating module 640 is used to, according to the true electricity and detection electricity, determine electricity
The error of metering.
In actual moving process, it is (such as average that relevant current parameters are got by parameter collection module 610 first
Electric current or transient current).Then it gives integral and calculating module 620 to integrate current parameters, calculate in the corresponding period
Use electricity.Electricity computing module 630 based on this, calculates current true electricity after getting using electricity
And it is supplied to error calculating module 640.Error calculating module 640 is determined using true electricity as standard existing for detection electricity
Error.
Specifically, as shown in fig. 6, the electricity computing module can include：Full charge computing unit 631 and current
Electricity computing unit 632.
Wherein, the full charge computing unit 631 is used to determine the full charge of power supply.The current electric quantity calculates single
Member is used to use electricity and the full charge according to described, calculates the current true electricity of power supply.Certainly, above-mentioned full charge
It is that advance acquisition calculates acquisition, can be stored in specific memory, be called when electricity computing module carries out electricity calculating.
In some embodiments, the full charge computing unit 631 is specifically used for：It discharges the power supply completely filled,
And acquire the discharge current of the power supply；When the corona discharge to blanking voltage point, when recording total electric discharge of the power supply
Between and calculate the integration of the discharge current that is flowed through in total discharge time, as the full charge.
Wherein, the blanking voltage point is the blanking voltage point that battery core nominal capacity is 0, can be by monitoring the electricity of battery core
Pressure determines whether to reach blanking voltage point to judge that battery core has been in zero power state.
In further embodiments, the parameter collection module 610 is specifically used for：With the scheduled period, power supply is acquired
Discharge current, and determine the average discharge current in different cycles.
The integral and calculating module 620 is specifically used for：The average discharge current with the duration in the period is multiplied, is obtained
The electricity that uses of current period is obtained, and interior of cumulative corresponding period is rhythmic using electricity, obtains in the corresponding period
Use electricity.
The error calculating module 640 is specifically used for：Calculate different sampling stages true electricity with detection electricity it
Between error；Generate change curve of the error with the sampling time.
Electric quantity metering accuracy detection module provided in an embodiment of the present invention can with the fluctuation range size of assessment errors, so as to
The electricity accuracy of the electricity scheme of test design examines whether the parameter configuration of electricity scheme is correctly configured or even may be used also
To examine the performance of product accordingly, applied to Instructing manufacture etc..
Since electric quantity metering accuracy detecting device can control in very high level the sampling precision of electric current, time,
And use current integration and the mode discharged completely.Therefore, the state for calculating electricity can be very accurate, is high-precision electricity
Amount assessment provides guarantee.In addition, electric quantity metering accuracy detecting device employs relatively calculates state of charge and practical electricity in real time
The mode of the difference of amount state can carry out real-time accuracy evaluation to entire discharge process.
It should be noted that above device embodiment with embodiment of the method based on identical inventive concept, embodiment of the method
Disclosed in content and the effect that has can also be realized by corresponding device, it is easy for statement, no longer repeat herein.
Those skilled in the art should further appreciate that, show with reference to what the embodiments described herein described
Each step of the electric quantity metering accuracy checking method of example property, can be with the combination of electronic hardware, computer software or the two
It realizes, in order to clearly demonstrate the interchangeability of hardware and software, is retouched in general manner according to function in the above description
Each exemplary composition and step are stated.These functions are performed actually with hardware or software mode, depending on technical solution
Specific application and design constraint.
Those skilled in the art can realize described function to each specific application using distinct methods, but
It is this realization it is not considered that beyond the scope of this invention.The computer software can be stored in computer-readable storage and be situated between
In matter, the program is when being executed, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, the storage medium can be
Magnetic disc, CD, read-only memory or random access memory etc..
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；At this
It under the thinking of invention, can also be combined between the technical characteristic in above example or different embodiment, step can be with
It is realized with random order, and there are many other variations of different aspect present invention as described above, for simplicity, they do not have
Have and provided in details；Although the present invention is described in detail referring to the foregoing embodiments, the ordinary skill people of this field
Member should understand that：It can still modify to the technical solution recorded in foregoing embodiments or to which part skill
Art feature carries out equivalent replacement；And these modifications or replacement, each reality of the present invention that it does not separate the essence of the corresponding technical solution
Apply the range of a technical solution.
Claims (13)
1. a kind of electric quantity metering accuracy checking method, which is characterized in that including：
Obtain the current parameters of power supply；
Current parameters are integrated, calculates in the corresponding period and uses electricity；
According to described using electricity, the current true electricity of power supply is calculated；
According to the true electricity and detection electricity, the error of electric quantity metering is determined.
2. according to the method described in claim 1, it is characterized in that, it is described according to described using electricity, it is current to calculate power supply
True electricity, specifically includes：
Determine the full charge of power supply；
Electricity and the full charge are used according to described, calculates the current true electricity of power supply.
3. according to the method described in claim 2, it is characterized in that, the full charge of the determining power supply, specifically includes：
It discharges the power supply completely filled, and acquires the discharge current of the power supply；
When the corona discharge to blanking voltage point, total discharge time of the power supply is recorded；The blanking voltage point is electricity
The electricity scheme in source is set as supply voltage when 0；
The integration of the discharge current flowed through in total discharge time is calculated, as the full charge.
4. according to the method described in claim 1, it is characterized in that, the current parameters for obtaining power supply, specifically include：
With the scheduled period, the discharge current of power supply is acquired；
Determine the average discharge current in different cycles.
5. according to the method described in claim 4, it is characterized in that, described integrate current parameters, calculating corresponds to the time
Electricity is used in section, is specifically included：
The average discharge current is multiplied with the duration in the period, obtain current period uses electricity；
Institute is rhythmic using electricity in the cumulative corresponding period, obtains in the corresponding period and uses electricity.
6. according to the method described in claim 1, it is characterized in that, it is described according to the true electricity with detection electricity, determine
The error of electric quantity metering, specifically includes：
Calculate the error between the true electricity of different sampling stages and detection electricity；
Generate change curve of the error with the sampling time.
7. a kind of electric quantity metering accuracy detecting device, which is characterized in that including：
Parameter collection module, for obtaining the current parameters of power supply；
Integral and calculating module for being integrated to current parameters, calculates in the corresponding period and uses electricity；
Electricity computing module, for, using electricity, calculating the current true electricity of power supply according to described；
Error calculating module, for according to the true electricity and detection electricity, determining the error of electric quantity metering.
8. device according to claim 7, which is characterized in that the electricity computing module includes：Full charge calculates single
Member and current electric quantity computing unit；
The full charge computing unit is used to determine the full charge of power supply；
The current electric quantity computing unit is used to use electricity and the full charge according to described, calculates current true of power supply
Electricity.
9. device according to claim 8, which is characterized in that the full charge computing unit is specifically used for：
It discharges the power supply completely filled, and acquires the discharge current of the power supply；
When the corona discharge to blanking voltage point, total discharge time of the power supply is recorded；The blanking voltage point is electricity
Core nominal capacity is 0 blanking voltage point；
The integration of the discharge current flowed through in total discharge time is calculated, as the full charge.
10. device according to claim 7, which is characterized in that the parameter collection module is specifically used for：With scheduled week
Phase, the discharge current of power supply is acquired, and determine the average discharge current in different cycles.
11. device according to claim 10, which is characterized in that the integral and calculating module is specifically used for：It will be described flat
Equal discharge current is multiplied with the duration in the period, obtains the electricity that uses of current period, and institute in the cumulative corresponding period
It is rhythmic to use electricity, it obtains in the corresponding period and uses electricity.
12. device according to claim 7, which is characterized in that the error calculating module is specifically used for：It calculates in difference
Error between the true electricity in sampling time and detection electricity；Generate change curve of the error with the sampling time.
13. a kind of computer storage media, is stored thereon with computer program, which is characterized in that the computer program is located
It manages and is realized when device performs such as the step of claim 1~6 any one of them electricity calculating accuracy of measurement detection method.
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| CN201810054356.1A CN108267703A (en) | 2018-01-19 | 2018-01-19 | Electric quantity metering accuracy checking method, its device and computer storage media |
| PCT/CN2018/109462 WO2019140956A1 (en) | 2018-01-19 | 2018-10-09 | Electricity quantity metering accuracy detection method, device and computer storage medium |
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| CN201810054356.1A CN108267703A (en) | 2018-01-19 | 2018-01-19 | Electric quantity metering accuracy checking method, its device and computer storage media |
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