CN107621607B - Battery performance testing method, testing terminal, readable storage medium and testing system - Google Patents
Battery performance testing method, testing terminal, readable storage medium and testing system Download PDFInfo
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Abstract
The invention discloses a battery performance testing method, a testing terminal, a readable storage medium and a testing system, wherein the battery performance testing method comprises the following steps: receiving an analog voltage value U1 and a digital voltage value AD1 of a battery of the equipment to be tested, which are obtained in real time when the equipment to be tested is in a normal starting state; calculating a linear fit function between the analog voltage values and digital voltage values through U1 and AD 1; and calculating the AD value corresponding to each node of the battery analog voltage through the linear fitting function so as to establish a battery electric quantity interval of the equipment to be tested in a normal starting state. According to the invention, the electric quantity interval of the battery is established through the corresponding relation between the analog voltage value and the digital voltage value of the battery of the equipment to be tested, so that the accuracy of battery electric quantity interval division is improved.
Description
Technical Field
The invention relates to the technical field of battery detection, in particular to a battery performance testing method, a testing terminal, a readable storage medium and a testing system.
Background
Generally, the battery level displayed by a mobile terminal, such as a mobile phone or a camera, is displayed by a digital voltage value converted from an analog voltage value of a battery.
At present, a method for dividing a battery power interval is to divide a voltage interval equally into a plurality of parts as a segment corresponding to a battery power level interval, but for a lithium battery, consumption conditions of battery power in different voltage intervals are different, for example, consumption time from 3.9V to 3.8V is different from consumption time from 3.8V to 3.7V, so that the power level interval divided according to the equally divided voltage interval is not consistent with actual consumption conditions of the battery, and user experience is affected.
Disclosure of Invention
The invention mainly aims to provide a battery performance testing method, a testing terminal, a readable storage medium and a testing system, aiming at improving the accuracy of battery electric quantity interval division.
In order to achieve the above object, the present invention provides a method for testing battery performance, comprising the steps of:
receiving an analog voltage value U1 and a digital voltage value AD1 of a battery of the equipment to be tested, which are obtained in real time when the equipment to be tested is in a normal starting state;
calculating a linear fit function between the analog voltage values and digital voltage values through U1 and AD 1;
and calculating the AD value corresponding to each node of the battery analog voltage through the linear fitting function so as to establish a battery electric quantity interval of the equipment to be tested in a normal starting state.
Preferably, the step of calculating a linear fit function between the analog voltage values and digital voltage values through U1 and AD1 comprises:
averaging U1 and AD1 in the same time interval into U2 and AD2 respectively to form an analog-digital voltage data group (U2, AD 2);
calculating a linear fit function between the analog voltage values and digital voltage values over a plurality of sets of the analog-to-digital voltage data (U2, AD 2).
Preferably, after the step of receiving the analog voltage value U1 and the digital voltage value AD1 of the battery of the device under test obtained in real time when the device under test is in the normal power-on state, and calculating the AD value corresponding to each node of the battery analog voltage through the linear fitting function, before the step of establishing the battery power interval of the device under test in the normal power-on state, the method further includes:
drawing a voltage change curve of the battery according to the received plurality of U1 and corresponding time;
and searching a battery analog voltage working node when the equipment to be tested normally works according to the change curve.
Preferably, before the step of calculating the AD value corresponding to each node of the battery analog voltage through the linear fitting function to establish the battery power interval of the device to be tested in the normal power-on state, the method includes:
and obtaining a shutdown voltage U0 of the device to be tested so as to obtain a battery simulation voltage shutdown node.
The invention also provides a test terminal, which comprises a memory, a processor and a battery performance test program which is stored on the memory and can run on the processor, wherein the battery performance test program realizes the steps of the battery performance test method when being executed by the processor.
The invention also provides a readable storage medium which is a computer readable storage medium and stores a battery performance testing program thereon, and the battery performance testing program realizes the steps of the battery performance testing method when executed by the processor.
The invention also provides a test system, comprising:
the voltage acquisition device is used for acquiring and transmitting the analog voltage value of the battery of the equipment to be tested in real time;
and the terminal is in communication connection with the voltage acquisition device and is used for receiving and processing the analog voltage value and the digital voltage value of the battery of the equipment to be tested, which is read by the equipment to be tested, and the terminal is the battery performance test terminal.
Preferably, the voltage acquisition device is a voltage transmitter and is used for acquiring the analog voltage value of the battery of the equipment to be tested in real time and sending the analog voltage value to the terminal at regular time.
Preferably, the voltage transmitter comprises an ADC module and an MCU module, the ADC module detects the real-time voltage of the equipment to be detected through a voltage detection probe, and transmits the acquired real-time voltage data to the MCU module, and the MCU module converts the real-time voltage value into an analog voltage value through operation and transmits the analog voltage value to the terminal through a serial port at regular time.
According to the battery performance testing method, the testing terminal, the readable storage medium and the testing system, the analog voltage value and the digital voltage value of the battery of the equipment to be tested are acquired simultaneously, the linear fitting function between the analog voltage value and the digital voltage value is calculated according to the analog voltage value and the digital voltage value acquired by the equipment to be tested in the normal starting state, and the AD value corresponding to each node of the analog voltage of the battery is calculated through the linear fitting function, so that the battery power interval of the equipment to be tested in the normal starting state is established, and the accuracy of battery power interval division is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a battery performance testing method according to a first embodiment of the present invention;
FIG. 2 is a schematic flow chart of a battery performance testing method according to a second embodiment of the present invention;
FIG. 3 is a schematic flow chart of a battery performance testing method according to a third embodiment of the present invention;
FIG. 4 is a schematic flow chart of a battery performance testing method according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a test system according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a method for testing battery performance, which is described below with reference to specific embodiments and accompanying drawings.
Fig. 1 is a first embodiment of a method for testing battery performance according to the present invention, and please refer to fig. 1, the method for testing battery performance includes the following steps:
step S10, receiving an analog voltage value U1 and a digital voltage value AD1 of a battery of the equipment to be tested, which are obtained in real time when the equipment to be tested is in a normal starting state;
the analog voltage value U1 and the digital voltage value AD1 can be received through a test terminal, or data of the analog voltage value U1 and the digital voltage value AD1 can be directly recorded by a tester, wherein the analog voltage value U1 can be obtained through manual testing, or can be automatically acquired through a voltage acquisition device, and the digital voltage value AD1 is identified through the terminal to be tested and displayed through the test terminal.
Step S20, calculating a linear fitting function between the analog voltage value and the digital voltage value through U1 and AD 1;
taking a specific data set in the same time interval from a data set formed by multiple sets of data of U1 and AD1 collected in real time to calculate a linear fitting function between the analog voltage value and the digital voltage value, for example, assuming that the linear fitting function between the analog voltage value and the digital voltage value is Y ═ aX + b, selecting two sets of data (Y1, X1) and (Y2, X2) when the device to be tested is in a normal working state, and calculating an expression of the linear fitting function.
And step S30, calculating the AD value corresponding to each node of the battery analog voltage through the linear fitting function so as to establish the battery electric quantity interval of the equipment to be tested in the normal starting state.
And obtaining a battery digital voltage working node (corresponding to X3, X4 and the like) of the equipment to be tested in normal operation through an expression Y of the linear fitting function, wherein the expression Y is aX + b, and the battery analog voltage working node (such as Y3, Y4 and the like) of the equipment to be tested in normal operation, and establishing a battery electric quantity interval of the equipment to be tested in a normal startup state according to the battery digital voltage working node.
According to the technical scheme provided by the invention, the battery power interval of the equipment to be tested in a normal starting state is established by simultaneously acquiring the analog voltage value and the digital voltage value of the battery of the equipment to be tested and according to the corresponding relation between the analog voltage value and the digital voltage value, so that the accuracy of battery power interval division is improved.
Fig. 2 is a diagram of a second embodiment of a battery performance testing method according to the present invention, please refer to fig. 2, the embodiment of the second embodiment is the same as the first embodiment, but the difference is that step S20 includes:
step S21, averaging the U1 and the AD1 in the same time interval into U2 and AD2 respectively to form an analog-digital voltage data group (U2, AD 2);
the analog voltage value and the digital voltage value of the equipment to be tested are acquired in real time, and the average value of real-time data acquired in the same time interval is obtained to form an analog-digital voltage data set, so that the acquired sample data is more comprehensive, and the sampling error caused by insufficient sample data is reduced.
Step S22, calculating a linear fitting function between the analog voltage values and the digital voltage values through a plurality of sets of the analog-to-digital voltage data (U2, AD 2).
On the basis of solving the data sample of the average value, the calculated linear fitting function is more accurate, and the problem that the calculated linear function is unreliable due to low accuracy of data caused by sampling errors of testers is solved.
Fig. 3 is a third embodiment of the method for testing battery performance according to the present invention, please refer to fig. 3, and the third embodiment is similar to the first embodiment, except that after step S10 and before step S30, the method further includes:
step S41, drawing a voltage change curve of the battery according to the received plurality of U1 and corresponding time;
after the device to be tested is normally started, the voltage of the battery can gradually decrease along with the service time of the device to be tested, and battery electric quantity intervals are accurately divided according to the change relation of the voltage of the battery during actual use of the device to be tested along with the time.
And step S42, finding a battery analog voltage working node when the equipment to be tested normally works according to the change curve.
By the analog voltage value of collection and the change curve of time when the equipment that awaits measuring normally starts the machine state confirm the battery analog voltage work node of equipment that awaits measuring when normal work, analog voltage work node can be known, for example the full-power voltage of the battery of installation in the equipment that awaits measuring, parameters such as cut-off voltage are known, can directly confirm according to known parameter this moment the battery analog voltage work node of equipment that awaits measuring when normal work, and to the unknown battery of parameter, can be through gathering in real time the battery analog voltage value and the digital voltage value of equipment that awaits measuring when normal start the machine state confirm the battery analog voltage work node of equipment that awaits measuring when normal work. And then taking a digital voltage value corresponding to the battery analog voltage working node as a battery digital voltage working node of the equipment to be tested.
Fig. 4 is a fourth embodiment of the method for testing battery performance according to the present invention, please refer to fig. 4, the fourth embodiment is similar to the first embodiment in the following point, which is different in that before step S30, the method includes:
and S43, obtaining the shutdown voltage U0 of the device to be tested to obtain a battery simulation voltage shutdown node.
After the device to be tested is shut down, the device to be tested cannot read the digital voltage value of the battery, and can only test the analog voltage value of the battery through an external test device, so that a battery digital voltage shutdown node corresponding to the battery analog voltage shutdown node is obtained by calculation through the linear fitting equation and the shutdown voltage U0 of the device to be tested, the battery digital voltage shutdown node of the device to be tested is further determined, and finally, a battery electric quantity interval of the device to be tested in a normal startup state and a battery electric quantity interval of the device to be tested in shutdown are established according to the battery digital voltage working node and the battery digital voltage shutdown node.
The present invention further provides a testing system, please refer to fig. 5, the testing system includes: the terminal comprises a voltage acquisition device and a terminal 100, wherein the voltage acquisition device is used for acquiring and sending the analog voltage value of the battery of the equipment to be tested 200 in real time; the terminal 100 is in communication connection with the voltage acquisition device, and is configured to receive and process the analog voltage value and the digital voltage value of the battery of the device under test 200 read by the device under test 200, and the terminal 100 executes the steps of the battery performance testing method according to the above embodiments.
The current common method is that a tester measures the analog voltage value of the battery through a multimeter and reads the corresponding digital voltage value, but the manual sampling has larger error, so that the test result is unreliable. Therefore, in the technical scheme of the invention, the analog voltage value of the equipment to be tested is automatically acquired through the voltage acquisition device, and the analog voltage value and the digital voltage value read by the equipment to be tested are received through the test terminal, so that the test error of the analog voltage value and the read error of the digital voltage value during manual test are avoided, and the sampling accuracy is improved.
Specifically, in this embodiment, the voltage collecting device is a voltage transmitter, and is configured to collect an analog voltage value of the battery of the device under test 200 in real time, and send the analog voltage value to the terminal 100 at regular time. Specifically, referring to fig. 5, the voltage transmitter 300 includes an ADC module 301 and an MCU module 302, the ADC module 301 detects a real-time voltage of the device under test 200 through a voltage detection probe, and transmits acquired real-time voltage data to the MCU module 302, and the MCU module 302 converts the real-time voltage value into an analog voltage value through operation, and transmits the analog voltage value to the terminal 100 through a serial port every 500 ms.
The invention further provides a test terminal, which includes a memory, a processor and a battery performance test program stored on the memory and capable of running on the processor, wherein the battery performance test program, when executed by the processor, implements the steps of the battery performance test method according to the above embodiments.
The present invention also provides a readable storage medium, which is a computer readable storage medium and has a battery performance testing program stored thereon, and when the battery performance testing program is executed by the processor, the steps of the battery performance testing method according to the above embodiments are implemented.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be substantially or partially embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk), and includes several instructions for enabling a terminal device (e.g., a mobile phone, a computer, a cloud server, or a network device) to execute the method of the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A battery performance test method is characterized by comprising the following steps:
receiving an analog voltage value U1 and a digital voltage value AD1 of a battery of the equipment to be tested, which are obtained in real time when the equipment to be tested is in a normal starting state;
calculating a linear fit function between the analog voltage values and digital voltage values through U1 and AD 1;
calculating the AD value corresponding to each node of the battery analog voltage through the linear fitting function so as to establish a battery electric quantity interval of the equipment to be tested in a normal starting state;
wherein, after the step of receiving analog voltage value U1 and digital voltage value AD1 of the equipment under test's battery that equipment under test obtained in real time when normal boot state, and through linear fitting function calculates the AD value that the battery analog voltage each node corresponds to before the step of establishing the battery electric quantity interval of equipment under test when normal boot state, still include:
drawing a voltage change curve of the battery according to the received plurality of U1 and corresponding time;
and searching a battery analog voltage working node when the equipment to be tested normally works according to the change curve.
2. The battery performance testing method of claim 1, wherein the step of calculating a linear fit function between the analog voltage value and the digital voltage value through U1 and AD1 comprises:
averaging U1 and AD1 in the same time interval into U2 and AD2 respectively to form an analog-digital voltage data group (U2, AD 2);
calculating a linear fit function between the analog voltage values and digital voltage values over a plurality of sets of the analog-to-digital voltage data (U2, AD 2).
3. The method for testing battery performance according to any one of claims 1 to 2, wherein before the step of calculating the AD value corresponding to each node of the battery analog voltage through the linear fitting function to establish the battery power interval of the device under test in the normal power-on state, the method comprises:
and obtaining a shutdown voltage U0 of the device to be tested so as to obtain a battery simulation voltage shutdown node.
4. A battery performance testing terminal comprising a memory, a processor and a battery performance testing program stored on said memory and executable on said processor, said battery performance testing program when executed by said processor implementing the steps of the battery performance testing method according to any one of claims 1 to 3.
5. A readable storage medium, which is a computer-readable storage medium and on which a battery performance test program is stored, the battery performance test program, when executed by a processor, implementing the steps of the battery performance test method according to any one of claims 1 to 3.
6. A test system, comprising:
the voltage acquisition device is used for acquiring and transmitting the analog voltage value of the battery of the equipment to be tested in real time;
a terminal, communicatively connected to the voltage acquisition device, for receiving and processing the analog voltage value and the digital voltage value of the battery of the device under test read by the device under test, wherein the terminal is the battery performance testing terminal according to claim 4.
7. The test system of claim 6, wherein the voltage collecting device is a voltage transmitter for collecting an analog voltage value of the battery of the device under test in real time and sending the analog voltage value to the terminal at regular time.
8. The test system of claim 7, wherein the voltage transmitter comprises an ADC module and an MCU module, the ADC module detects a real-time voltage of the device under test through a voltage detection probe and transmits a collected real-time voltage value to the MCU module, and the MCU module converts the real-time voltage value into an analog voltage value through operation and transmits the analog voltage value to the terminal through a serial port at regular time.
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| CN110362906B (en) * | 2019-07-03 | 2023-01-20 | 合肥移瑞通信技术有限公司 | Method and system for simulating vehicle-mounted voltage dynamic change environment |
| CN113325902B (en) * | 2021-05-08 | 2023-03-21 | 东风柳州汽车有限公司 | Method, device and equipment for intelligently adjusting glue yield and storage medium |
| CN116430249A (en) * | 2023-03-13 | 2023-07-14 | 深圳龙电华鑫控股集团股份有限公司 | Voltage detection method, modeling method of voltage detection model and electronic equipment |
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| TWI322558B (en) * | 2006-10-20 | 2010-03-21 | Giga Byte Tech Co Ltd | Power supply and host |
| CN100546143C (en) * | 2007-09-26 | 2009-09-30 | 东北大学 | A kind of low current grounding detects the device and method with the location |
| CN201673244U (en) * | 2010-05-24 | 2010-12-15 | 深圳市凯利博实业有限公司 | Battery electric quantity detecting device |
| CN102291489B (en) * | 2011-08-10 | 2014-11-05 | 惠州Tcl移动通信有限公司 | Mobile phone and voltage calibration method thereof |
| CN102508167B (en) * | 2011-10-25 | 2014-08-06 | 上海交通大学 | Device and method for automatically testing and calibrating parameters of battery management systems |
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