CN113030821A - Electric quantity calibration method and device - Google Patents
Electric quantity calibration method and device Download PDFInfo
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- CN113030821A CN113030821A CN201911348314.XA CN201911348314A CN113030821A CN 113030821 A CN113030821 A CN 113030821A CN 201911348314 A CN201911348314 A CN 201911348314A CN 113030821 A CN113030821 A CN 113030821A
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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
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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Abstract
The invention provides an electric quantity calibration method and device, belonging to the field of industrial production, wherein the method comprises the following steps: determining the type of the electric quantity measurement error of the target equipment; acquiring voltage values correspondingly acquired by the target equipment under different applied test voltages; and calculating the electric quantity calibration parameters of the target equipment according to the different applied test voltages, the voltage value acquired by the target equipment and the electric quantity measurement error type of the target equipment. According to the invention, the electric quantity calibration process is added in the production measurement process, and the electric quantity calibration parameters of the equipment are recalculated, so that the accuracy of the electric quantity measurement of the battery of the equipment can be effectively improved, the problem of inaccurate electric quantity measurement of the batteries of the equipment in batches is solved, and the efficiency of the electric quantity measurement of the batteries is effectively improved.
Description
Technical Field
The invention relates to the technical field of industrial production, in particular to an electric quantity calibration method and device.
Background
Currently, the detection scheme for the device power generally includes the following two types: (1) coulometer scheme: integrating the discharged and charged electric quantity of the battery in unit time by using a coulomb device, and calculating the electric quantity value of the current battery; (2) voltage measurement scheme: based on the principle that the open-circuit voltage of the battery reflects the electric quantity of the battery, the voltage at two ends of the battery is measured to calculate the electric quantity value of the current battery. The two schemes have advantages and disadvantages, the coulometer scheme can obtain more accurate results but has relatively high cost, and the measurement method is relatively complex; for equipment sensitive to cost and low in requirement on electric quantity precision, calculating the electric quantity of the battery based on the measured voltage value is a low-cost, simple and effective scheme. However, the above solutions have the disadvantages of inaccurate battery power measurement of the devices, low efficiency caused by the need of performing power calibration on each device individually, and the like.
Disclosure of Invention
In view of this, the present invention provides a crowd distribution prediction method and system to solve the problem of low efficiency caused by inaccurate battery power measurement and need to calibrate power of each device individually in the prior art.
In order to solve the above technical problem, in a first aspect, the present invention provides an electric quantity calibration method, including:
determining the type of the electric quantity measurement error of the target equipment;
acquiring voltage values correspondingly acquired by the target equipment under different applied test voltages;
and calculating the electric quantity calibration parameters of the target equipment according to the different applied test voltages, the voltage value acquired by the target equipment and the electric quantity measurement error type of the target equipment.
Optionally, the step of obtaining the voltage values correspondingly acquired by the target device under different external test voltages includes:
controlling an external programmable power supply to output different external test voltages to the target equipment;
and acquiring the voltage value of the program-controlled power supply correspondingly acquired by the target equipment under different applied test voltages.
Optionally, before obtaining the voltage values correspondingly acquired by the target device under different external test voltages, the method further includes:
and clearing the original electric quantity calibration parameters stored in the target equipment.
Optionally, the step of determining the type of the power measurement error of the target device includes:
acquiring voltage value data correspondingly acquired by each piece of N pieces of equipment which are similar to the target equipment under different external test voltages, wherein N is a positive integer;
and determining electric quantity measurement error types of the N devices according to all voltage value data of the N devices, and taking the electric quantity measurement error types of the N devices as the electric quantity measurement error types of the target device, wherein the electric quantity measurement error types comprise linear errors and nonlinear errors.
Optionally, the step of calculating the electric quantity calibration parameter of the target device according to the different applied test voltages, the voltage value collected by the target device, and the electric quantity measurement error type of the target device includes:
selecting an electric quantity measurement error calibration model corresponding to the electric quantity measurement error type according to the electric quantity measurement error type of the target equipment, wherein the electric quantity measurement error calibration model comprises undetermined electric quantity calibration parameters;
and calculating the calibration parameter of the undetermined electric quantity in the electric quantity measurement error calibration model by using the different external test voltages and the voltage value acquired by the target equipment to obtain the electric quantity calibration parameter of the target equipment.
Optionally, the method further includes:
and storing the electric quantity calibration parameter in a data storage area of the target device.
Optionally, the method further includes:
outputting different external verification voltages to the target equipment;
acquiring output values of the target equipment under different applied checking voltages, wherein the output values are obtained by calibrating the measured values of the target equipment by using the electric quantity calibration parameters;
and if the difference value between the voltage value of the additional check voltage and the corresponding output value meets a preset error range, judging that the output value is correct.
In a second aspect, the present invention further provides an electric quantity calibration apparatus, including:
the acquisition module is used for acquiring voltage values correspondingly acquired by the target equipment under different external test voltages;
the determining module is used for determining the electric quantity measurement error type of the target equipment;
and the calculation module is used for calculating the electric quantity calibration parameters of the target equipment according to the different external test voltages, the voltage value acquired by the target equipment and the electric quantity measurement error type of the target equipment.
Optionally, the obtaining module includes:
a voltage control unit for controlling an external programmable power supply to output different applied test voltages to the target device
And the acquisition unit is used for acquiring the voltage value of the program-controlled power supply correspondingly acquired by the target equipment under different external test voltages.
Optionally, the apparatus further comprises:
and the clearing module is used for clearing the original electric quantity calibration parameters stored in the target equipment.
Optionally, the determining module includes:
the data acquisition unit of the same kind of equipment: the device comprises a voltage value acquisition module, a voltage value acquisition module and a voltage value acquisition module, wherein the voltage value acquisition module is used for acquiring voltage value data which are correspondingly acquired by each device of N devices of the same type as the target device under different external test voltages, and N is a positive integer;
the error type determining unit of the same type of equipment: and the electric quantity measuring error type of the N devices is determined according to all voltage value data of the N devices, and is used as the electric quantity measuring error type of the target device, wherein the electric quantity measuring error type comprises a linear error and a nonlinear error.
Optionally, the calculation module includes:
the model selection unit is used for selecting an electric quantity measurement error calibration model corresponding to the electric quantity measurement error type according to the electric quantity measurement error type of the target equipment, and the electric quantity measurement error calibration model comprises undetermined electric quantity calibration parameters;
and the calculation unit is used for calculating the calibration parameters of the undetermined electric quantity in the electric quantity measurement error calibration model by using the different external test voltages and the voltage value acquired by the target equipment to obtain the electric quantity calibration parameters of the target equipment.
Optionally, the apparatus further comprises:
and the storage module is used for storing the electric quantity calibration parameters in a data storage area of the target equipment.
Optionally, the apparatus further comprises:
the check voltage control module is used for outputting different external check voltages to the target equipment;
the output value acquisition module is used for acquiring output values of the target equipment under different external check voltages, wherein the output values are obtained by calibrating the measured values of the target equipment by using the electric quantity calibration parameters;
and the judging module is used for judging that the output value is correct if the difference value between the voltage value of the additional check voltage and the corresponding output value meets a preset error range.
In a third aspect, the present invention also provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of any of the above-mentioned power calibration methods.
The technical scheme of the invention has the following beneficial effects:
in the embodiment of the invention, the accuracy of the battery electric quantity measurement of the equipment can be effectively improved by adding the electric quantity calibration flow in the production measurement flow and recalculating the electric quantity calibration parameters of the equipment, the problem of inaccurate battery electric quantity measurement of batch equipment is solved, and the efficiency of the battery electric quantity measurement is effectively improved.
Drawings
Fig. 1 is a schematic flow chart illustrating a method for calibrating electrical quantity according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of an electrical calibration apparatus according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
At present, a common electric quantity detection scheme includes:
(1) coulometer scheme: and integrating the discharged and charged electric quantity of the battery in unit time by using a coulomb device to calculate the electric quantity value of the current battery.
(2) Voltage measurement scheme: based on the principle that the open-circuit voltage of the battery reflects the electric quantity of the battery, the voltage at two ends of the battery is measured to calculate the electric quantity value of the current battery.
The two schemes have advantages and disadvantages, the coulometer scheme can obtain more accurate results but has relatively high cost, and the measurement method is relatively complex; for equipment sensitive to cost and low in requirement on electric quantity precision, calculating the electric quantity of the battery based on the measured voltage value is a low-cost, simple and effective scheme.
In a conventional processing method for calculating battery capacity based on battery voltage, a dedicated ADC (Analog-to-digital converter) or an ADC module integrated by an MCU (micro controller Unit) collects a voltage value of a battery powered by a device through a voltage sampling circuit, and calculates the battery capacity according to the collected battery voltage value and a discharge characteristic curve of the type of battery.
For the technical scheme of electric quantity calibration under the voltage measurement scheme, the common processing mode includes: 1) changing circuit design, layout, components with higher replacement precision and other modes at a hardware level to reduce errors, and 2) setting constant error calibration parameters at a software level to calibrate the acquired electric quantity.
However, the above processing method is suitable for the situation when the power error rules reflected by single equipment or batch equipment are consistent, and when the power error shown by each piece of produced equipment has no consistent rule, the above power calibration method is difficult to solve the problem of inaccurate power measurement of batch equipment, and the method of performing power calibration one by one for each piece of equipment has the problems of low operation efficiency and increased time cost.
That is to say, for the electric quantity calibration technical solution under the voltage measurement scheme, there are the following defects:
1) the hardware circuit and the device are changed, which is more effective in the initial stage of product development, but if the hardware circuit is designed again in the production link, the development cycle, the cost, the equipment authentication, the production material preparation and the like of the product are greatly influenced.
2) When there is no rule of consistency to the error between the devices, the problem of difference between the devices in batches cannot be solved by the constant electric quantity calibration parameters, and the calibration effect is poor.
3) For the devices requiring mass production, performing the electric quantity calibration for each device separately would increase additional processes, procedures, time, devices, labor costs, etc., and is inefficient.
Therefore, referring to fig. 1, fig. 1 is a schematic flow chart of a method for calibrating power according to an embodiment of the present invention, where the method for calibrating power may include the following steps:
step 11: determining the type of the electric quantity measurement error of the target equipment;
step 12: acquiring voltage values correspondingly acquired by the target equipment under different applied test voltages;
step 13: and calculating the electric quantity calibration parameters of the target equipment according to the different applied test voltages, the voltage value acquired by the target equipment and the electric quantity measurement error type of the target equipment.
According to the electric quantity calibration method provided by the embodiment of the invention, the electric quantity calibration process is added in the production measurement process, and the electric quantity calibration parameters of the equipment are recalculated, so that the accuracy of the electric quantity measurement of the battery of the equipment can be effectively improved, the problem of inaccurate electric quantity measurement of the batteries of the equipment in batches is solved, and the efficiency of the electric quantity measurement of the batteries is effectively improved.
The above-described charge calibration method is exemplified below.
In one optional specific implementation manner, in step 11, specifically, the type of the electrical measurement error of the target device needs to be determined first, in an actual production test, due to reasons such as circuit characteristic differences and parameter errors of components, a deviation exists between a measured voltage value and an actual voltage value of a battery obtained by the target device through an ADC chip of the target device, that is, an electrical measurement error of the battery exists, the electrical measurement error of the battery may be divided into a linear error and a nonlinear error, and the linear error may be divided into an additive error, a multiplicative error and a composite error, specifically, when the electrical measurement error is an additive error, a calibration model of the corresponding electrical measurement error is as follows: u shape0U + Va, wherein U0The actual voltage value is U, the measured voltage value is U, and the electric quantity measurement additive error parameter is Va; when the electric quantity measurement error is multiplicative error, the corresponding electric quantity measurement error calibration model is as follows: u shape0Vm × U, wherein U0The actual voltage value is U, the measured voltage value is U, and the electric quantity measurement multiplicative error parameter is Vm; when the electric quantity measurement error is a composite error, the corresponding electric quantity measurement error isThe electric quantity measurement error calibration model is as follows: u shape0Vm × U + Va, where U0The actual voltage value is U, the measured voltage value is Vm, the electric quantity measurement multiplicative error parameter is Vm, and the electric quantity measurement additive error parameter is Va; when the electric quantity measurement error is a nonlinear error, fitting analysis needs to be performed on specific electric quantity measurement data, and according to the rule of the electric quantity measurement error, an electric quantity measurement error calibration model is determined, for example, fitting analysis is performed by adopting methods such as least square method fitting straight line and curve fitting.
Further, step 11 in the embodiment of the present invention may specifically include:
step 111: acquiring voltage value data correspondingly acquired by each piece of N pieces of equipment which are similar to the target equipment under different external test voltages, wherein N is a positive integer;
step 112: and determining electric quantity measurement error types of the N devices according to all voltage value data of the N devices, and taking the electric quantity measurement error types of the N devices as the electric quantity measurement error types of the target device, wherein the electric quantity measurement error types comprise linear errors and nonlinear errors.
That is, firstly, N devices of the same type as the target device are prepared, where N is a positive integer, and then voltage value data corresponding to the acquisition of each device under different external test voltages are obtained, and since each device can acquire voltage by using its own voltage sampling circuit, the voltage value data acquired by the devices under different external test voltages can be obtained by applying different external test voltages to each device, and in actual implementation, different external test voltages can be applied to the devices by the programmable power supply; after all the voltage value data of the N devices are obtained, analyzing all the voltage value data, and judging the electric quantity measurement error types of the N devices, namely the electric quantity measurement error types of the devices similar to the target device, such as additive errors, multiplicative errors and the like, so that the electric quantity measurement error types of the N devices can be used as the electric quantity measurement error types of the target device. It can be inferred that the more the number of the similar devices is tested, the more the sample data is collected, and the more accurate the final judgment result of the electric quantity measurement error type is.
In this embodiment of the present invention, step 12 may specifically include:
step 121: controlling an external programmable power supply to output different external test voltages to the target equipment;
step 122: and acquiring the voltage value of the program-controlled power supply correspondingly acquired by the target equipment under different applied test voltages.
Specifically, in the production testing process of the target device, an external program-controlled power supply can be used as the power supply input of the target device, the program-controlled power supply can output specific voltage and current under control, different external test voltages are output to the target device by controlling the external program-controlled power supply, the target device can acquire the voltage values of the program-controlled power supply under different external test voltages through a voltage sampling circuit of the target device, that is, the voltage value of the given target device, namely the actual voltage value, can be determined by controlling the output of the program-controlled power supply, the voltage value acquired by the target device under the given voltage value is the measured voltage value, one actual voltage value corresponds to one measured voltage value, and the two measured voltage values are a group of data; to accurately calculate the electric quantity calibration parameters of the target device, generally, multiple sets of data of the target device need to be acquired.
In some embodiments of the present invention, before step 12, further comprising:
and clearing the original electric quantity calibration parameters stored in the target equipment.
That is, some target devices may have stored electric quantity calibration parameters set at the beginning, so before obtaining voltage values that the target devices correspondingly acquire under different external test voltages, the original electric quantity calibration parameters stored by the target devices should be cleared away, and it is avoided that the finally obtained voltage values are obtained after the original electric quantity calibration parameters of the target devices are calibrated, so as to avoid influencing subsequent calculations.
In the embodiment of the present invention, step 13 may specifically include:
step 131: selecting an electric quantity measurement error calibration model corresponding to the electric quantity measurement error type according to the electric quantity measurement error type of the target equipment, wherein the electric quantity measurement error calibration model comprises undetermined electric quantity calibration parameters;
step 132: and calculating the calibration parameter of the undetermined electric quantity in the electric quantity measurement error calibration model by using the different external test voltages and the voltage value acquired by the target equipment to obtain the electric quantity calibration parameter of the target equipment.
That is to say, after the type of the electrical quantity measurement error of the target device is determined, an electrical quantity measurement error calibration model corresponding to the type of the electrical quantity measurement error may be selected according to the type of the electrical quantity measurement error of the target device, for example, when the electrical quantity measurement error is an additive error, the corresponding electrical quantity measurement error calibration model is: u shape0U + Va, wherein U0The actual voltage value is U, the measured voltage value is U, and the electric quantity measurement additive error parameter is Va; when the electric quantity measurement error is multiplicative error, the corresponding electric quantity measurement error calibration model is as follows: u shape0Vm × U, wherein U0The actual voltage value is U, the measured voltage value is U, and the electric quantity measurement multiplicative error parameter is Vm; and when the electric quantity measurement error is a composite error, the corresponding electric quantity measurement error calibration model is as follows: u shape0Vm × U + Va, where U0The actual voltage value is U, the measured voltage value is Vm, the electric quantity measurement multiplicative error parameter is Vm, and the electric quantity measurement additive error parameter is Va.
Further, by using the different external test voltages obtained in the step 12 and the voltage values correspondingly acquired by the target device, the undetermined electric quantity calibration parameters in the electric quantity measurement error calibration model, that is, the electric quantity measurement additive error parameter Va, the electric quantity measurement multiplicative error parameter Vm, and the like, can be calculated by combining the selected electric quantity measurement error calibration model, and finally, the electric quantity calibration parameters of the target device are obtained, and the target device can calibrate the measured battery electric quantity data by using the electric quantity calibration parameters and output an accurate voltage value. It can be known that, in the data acquired in the above step 12, it is necessary to filter out part of invalid data contained therein to ensure the accuracy of the finally calculated calibration parameter of the electric quantity.
In the embodiment of the present invention, the method may further include:
and storing the electric quantity calibration parameter in a data storage area of the target device.
That is to say, after the electric quantity calibration parameters of the target device are obtained through calculation, the electric quantity calibration parameters can be stored in the data storage area corresponding to the target device, so that the target device can still perform electric quantity calibration after receiving the electric quantity calibration parameters even after power failure shutdown and restart.
In an embodiment of the present invention, in order to check the calculated electric quantity calibration parameter of the target device to determine whether the calibration result is accurate, the method may further include:
outputting different external verification voltages to the target equipment;
acquiring output values of the target equipment under different applied checking voltages, wherein the output values are obtained by calibrating the measured values of the target equipment by using the electric quantity calibration parameters;
and if the difference value between the voltage value of the additional check voltage and the corresponding output value meets a preset error range, judging that the output value is correct.
Specifically, the programmable power supply can be controlled again to output different external calibration voltages to the target device, then the target device obtains measured values under different external calibration voltages by using a voltage sampling circuit of the target device, calibrates the measured values by using the electric quantity calibration parameter to obtain output values of the target device under different external calibration voltages, compares the obtained output values with corresponding voltage values of the external calibration voltages after obtaining the output values of the target device, and determines that the output values obtained after the target device is calibrated by using the electric quantity calibration parameter are correct if the difference value between the obtained output values and the corresponding voltage values of the external calibration voltages meets a preset error range, thereby completing the calibration of the electric quantity calibration parameter; if the difference between the two values does not meet the preset error range, the steps are required to be carried out again, and the electric quantity calibration parameters of the target equipment are recalculated until the finally obtained output value of the target equipment meets the preset requirement.
According to the electric quantity calibration method provided by the embodiment of the invention, the electric quantity calibration process is added in the production measurement process, and the electric quantity calibration parameters of the equipment are recalculated, so that the accuracy of the electric quantity measurement of the battery of the equipment can be effectively improved, the problem of inaccurate electric quantity measurement of the batteries of the equipment in batches is solved, and the efficiency of the electric quantity measurement of the batteries is effectively improved.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an electric quantity calibration apparatus according to a second embodiment of the present invention, where the electric quantity calibration apparatus 20 may include:
a determining module 22, configured to determine a power measurement error type of the target device;
the acquisition module 23 is configured to acquire voltage values correspondingly acquired by the target device under different external test voltages;
and the calculating module 24 is configured to calculate an electric quantity calibration parameter of the target device according to the different applied test voltages, the voltage value acquired by the target device, and the electric quantity measurement error type of the target device.
Optionally, the obtaining module 23 includes:
a voltage control unit for controlling an external programmable power supply to output different applied test voltages to the target device
And the acquisition unit is used for acquiring the voltage value of the program-controlled power supply correspondingly acquired by the target equipment under different external test voltages.
Optionally, the apparatus 20 further includes:
and a clearing module 21, configured to clear the original power calibration parameter stored in the target device.
Optionally, the determining module 22 includes:
the data acquisition unit of the same kind of equipment: the device comprises a voltage value acquisition module, a voltage value acquisition module and a voltage value acquisition module, wherein the voltage value acquisition module is used for acquiring voltage value data which are correspondingly acquired by each device of N devices of the same type as the target device under different external test voltages, and N is a positive integer;
the error type determining unit of the same type of equipment: and the electric quantity measuring error type of the N devices is determined according to all voltage value data of the N devices, and is used as the electric quantity measuring error type of the target device, wherein the electric quantity measuring error type comprises a linear error and a nonlinear error.
Optionally, the calculating module 24 includes:
the model selection unit is used for selecting an electric quantity measurement error calibration model corresponding to the electric quantity measurement error type according to the electric quantity measurement error type of the target equipment, and the electric quantity measurement error calibration model comprises undetermined electric quantity calibration parameters;
and the calculation unit is used for calculating the calibration parameters of the undetermined electric quantity in the electric quantity measurement error calibration model by using the different external test voltages and the voltage value acquired by the target equipment to obtain the electric quantity calibration parameters of the target equipment.
Optionally, the apparatus 20 further includes:
and the storage module 25 is configured to store the power calibration parameter in a data storage area of the target device.
Optionally, the apparatus 20 further includes:
a calibration voltage control module 26, configured to output different external calibration voltages to the target device;
an output value obtaining module 27, configured to obtain output values of the target device under different external calibration voltages, where the output values are obtained by calibrating measurement values of the target device using the electric quantity calibration parameters;
and a determining module 28, configured to determine that the output value is correct if a difference between the voltage value of the applied verification voltage and the corresponding output value meets a preset error range.
The embodiment of the present invention provides a technical solution corresponding to the crowd distribution prediction method in the above embodiment and having the same inventive concept, and the same technical effects can be achieved.
A third embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the method for calibrating electric quantity in the first embodiment. Please refer to the above description of the method steps in the corresponding embodiments.
The computer-readable storage media described above, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A method for calibrating power, comprising:
determining the type of the electric quantity measurement error of the target equipment;
acquiring voltage values correspondingly acquired by the target equipment under different applied test voltages;
and calculating the electric quantity calibration parameters of the target equipment according to the different applied test voltages, the voltage value acquired by the target equipment and the electric quantity measurement error type of the target equipment.
2. The method for calibrating electrical quantity according to claim 1, wherein the step of obtaining the voltage values of the target device correspondingly collected under different applied test voltages comprises:
controlling an external programmable power supply to output different external test voltages to the target equipment;
and acquiring the voltage value of the program-controlled power supply correspondingly acquired by the target equipment under different applied test voltages.
3. The method for calibrating electrical quantity according to claim 1, wherein before obtaining the voltage values of the target device correspondingly collected under different applied test voltages, the method further comprises:
and clearing the original electric quantity calibration parameters stored in the target equipment.
4. The power calibration method of claim 1, wherein the step of determining the type of power measurement error of the target device comprises:
acquiring voltage value data correspondingly acquired by each piece of N pieces of equipment which are similar to the target equipment under different external test voltages, wherein N is a positive integer;
and determining electric quantity measurement error types of the N devices according to all voltage value data of the N devices, and taking the electric quantity measurement error types of the N devices as the electric quantity measurement error types of the target device, wherein the electric quantity measurement error types comprise linear errors and nonlinear errors.
5. The method for calibrating power consumption according to claim 1, wherein the step of calculating the power consumption calibration parameter of the target device according to the different applied test voltages, the voltage value collected by the target device, and the power consumption measurement error type of the target device comprises:
selecting an electric quantity measurement error calibration model corresponding to the electric quantity measurement error type according to the electric quantity measurement error type of the target equipment, wherein the electric quantity measurement error calibration model comprises undetermined electric quantity calibration parameters;
and calculating the calibration parameter of the undetermined electric quantity in the electric quantity measurement error calibration model by using the different external test voltages and the voltage value acquired by the target equipment to obtain the electric quantity calibration parameter of the target equipment.
6. The method of calibrating electrical quantity according to claim 1, further comprising:
and storing the electric quantity calibration parameter in a data storage area of the target device.
7. The method of calibrating electrical quantity according to claim 1, further comprising:
outputting different external verification voltages to the target equipment;
acquiring output values of the target equipment under different applied checking voltages, wherein the output values are obtained by calibrating the measured values of the target equipment by using the electric quantity calibration parameters;
and if the difference value between the voltage value of the additional check voltage and the corresponding output value meets a preset error range, judging that the output value is correct.
8. An electrical quantity calibration device, comprising:
the determining module is used for determining the electric quantity measurement error type of the target equipment;
the acquisition module is used for acquiring voltage values correspondingly acquired by the target equipment under different external test voltages;
and the calculation module is used for calculating the electric quantity calibration parameters of the target equipment according to the different external test voltages, the voltage value acquired by the target equipment and the electric quantity measurement error type of the target equipment.
9. The electrical calibration device of claim 8, further comprising:
and the clearing module is used for clearing the original electric quantity calibration parameters stored in the target equipment.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for calibrating an amount of power according to any one of claims 1 to 7.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113791357A (en) * | 2021-11-16 | 2021-12-14 | 深圳维普创新科技有限公司 | Method and related device for intelligently correcting battery display electric quantity |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1274854A (en) * | 2000-06-19 | 2000-11-29 | 瞿清昌 | Calibration method of multi-range electrical measuring instrument |
| CN202794491U (en) * | 2012-06-27 | 2013-03-13 | 北京泛华恒兴科技有限公司 | Test equipment automatic calibration instrument and calibration system |
| CN106462949A (en) * | 2014-04-22 | 2017-02-22 | 微软技术许可有限责任公司 | Depth sensor calibration and per-pixel correction |
| CN107861082A (en) * | 2017-10-30 | 2018-03-30 | 广东电网有限责任公司电力科学研究院 | A kind of calibration intervals of electronic metering equipment determine method and device |
| CN107941417A (en) * | 2017-11-10 | 2018-04-20 | 苏州华兴源创电子科技有限公司 | The output calibrating installation and method of a kind of pressure sensor |
| CN109004904A (en) * | 2018-06-27 | 2018-12-14 | 汉能移动能源控股集团有限公司 | Calibration parameter setting method, device, system, equipment and medium |
| CN109556515A (en) * | 2018-11-26 | 2019-04-02 | 深圳市万相源科技有限公司 | A kind of systematic error calibration method, system and equipment based on machine vision |
-
2019
- 2019-12-24 CN CN201911348314.XA patent/CN113030821A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1274854A (en) * | 2000-06-19 | 2000-11-29 | 瞿清昌 | Calibration method of multi-range electrical measuring instrument |
| CN202794491U (en) * | 2012-06-27 | 2013-03-13 | 北京泛华恒兴科技有限公司 | Test equipment automatic calibration instrument and calibration system |
| CN106462949A (en) * | 2014-04-22 | 2017-02-22 | 微软技术许可有限责任公司 | Depth sensor calibration and per-pixel correction |
| CN107861082A (en) * | 2017-10-30 | 2018-03-30 | 广东电网有限责任公司电力科学研究院 | A kind of calibration intervals of electronic metering equipment determine method and device |
| CN107941417A (en) * | 2017-11-10 | 2018-04-20 | 苏州华兴源创电子科技有限公司 | The output calibrating installation and method of a kind of pressure sensor |
| CN109004904A (en) * | 2018-06-27 | 2018-12-14 | 汉能移动能源控股集团有限公司 | Calibration parameter setting method, device, system, equipment and medium |
| CN109556515A (en) * | 2018-11-26 | 2019-04-02 | 深圳市万相源科技有限公司 | A kind of systematic error calibration method, system and equipment based on machine vision |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113791357A (en) * | 2021-11-16 | 2021-12-14 | 深圳维普创新科技有限公司 | Method and related device for intelligently correcting battery display electric quantity |
| CN113791357B (en) * | 2021-11-16 | 2022-03-29 | 深圳维普创新科技有限公司 | Method and related device for intelligently correcting battery display electric quantity |
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