CN110850304B - Full charge detection method and device and storage medium - Google Patents
Full charge detection method and device and storage medium Download PDFInfo
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- CN110850304B CN110850304B CN201810847492.6A CN201810847492A CN110850304B CN 110850304 B CN110850304 B CN 110850304B CN 201810847492 A CN201810847492 A CN 201810847492A CN 110850304 B CN110850304 B CN 110850304B
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Abstract
The invention discloses a full charge detection method, which comprises the following steps: acquiring battery voltage, continuously detecting voltage difference values of adjacent time points, determining a battery state according to the voltage difference values, and recording the duration of the battery state; and determining whether the battery is fully charged according to the voltage, the battery state and the duration of the battery state. The invention also discloses a full charge detection device and a storage medium.
Description
Technical Field
The present invention relates to battery charging technologies, and in particular, to a full charge detection method and apparatus, and a storage medium.
Background
The existing methods for detecting the charging state need to detect the voltage and the current, and then judge the charging state by integrating the change conditions of the voltage and the current. For example: in some schemes, an equivalent circuit model is established by using the voltage and the current when the battery is charged to detect the full charge state of the storage battery; by adopting the scheme, the battery detection equipment is required to simultaneously acquire voltage and current, so that the battery detection equipment is very inconvenient to install and wires of the detected equipment are often required to be broken; in addition, the scheme needs complex modeling, so that the calculation amount is large, and the efficiency is low. In the other scheme, extra constant current charging is required to be carried out on the detected storage battery, and related performance parameters of the storage battery are detected to judge whether the storage battery is fully charged, so that the implementation difficulty is more complex and difficult.
Disclosure of Invention
In view of the above, embodiments of the present invention are intended to provide a full charge detection method, a full charge detection apparatus, and a storage medium.
In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:
the embodiment of the invention provides a full charge detection method, which comprises the following steps:
acquiring battery voltage, continuously detecting voltage difference values of adjacent time points, determining a battery state according to the voltage difference values, and recording the duration of the battery state;
and determining whether the battery is fully charged according to the voltage, the battery state and the duration of the battery state.
In the foregoing solution, the determining the battery status according to the voltage difference includes:
determining that the battery is in a steady state when the absolute value of the voltage difference value detected for a first preset number of consecutive times is less than or equal to a first threshold value;
determining that the battery is in a charging state when the voltage difference value detected for a second preset number of consecutive times is greater than the first threshold value;
and when the voltage difference value detected for a third preset number of times is determined to be smaller than the negative number of the first threshold value, determining that the battery is in a discharging state.
In the foregoing solution, the determining whether the battery is fully charged according to the voltage, the battery state, and the duration of the battery state includes:
determining that the battery is fully charged when it is determined that the voltage, the battery state, and the duration of the battery state satisfy the following conditions:
determining that the voltage exceeds a first voltage value; the first voltage value is used for representing the difference value between the maximum value of the voltage in the detection process and a second threshold value;
determining that the battery is in a steady state and the previous state of the battery is a charging state; and the number of the first and second groups,
and determining that the duration of the battery in the stable state exceeds a preset duration.
In the above scheme, the obtaining the battery voltage further includes: and determining a smoothing coefficient, and smoothing the voltage according to the smoothing coefficient to obtain the smoothed voltage.
In the foregoing scheme, the determining a smoothing coefficient includes: reading a corresponding relation between the stored smoothing coefficient and the voltage difference value according to the voltage difference value, and determining the smoothing coefficient corresponding to the voltage difference value; the smoothing coefficient is adjusted to follow the variation of the voltage difference value.
An embodiment of the present invention further provides a full charge detection apparatus, where the apparatus includes: a first processing module and a second processing module; wherein the content of the first and second substances,
the first processing module is used for acquiring the voltage of the battery, continuously detecting the voltage difference value of adjacent time points, determining the state of the battery according to the voltage difference value and recording the duration of the state of the battery;
the second processing module is configured to determine whether the battery is fully charged according to the voltage, the battery state, and the duration of the battery state determined by the first processing module.
In the foregoing solution, the second processing module is specifically configured to determine that the battery is in a steady state when the absolute value of the voltage difference detected for the first preset number of consecutive times is smaller than or equal to a first threshold;
determining that the battery is in a charging state when the voltage difference value detected for a second preset number of consecutive times is greater than the first threshold value;
and when the voltage difference value detected for a third preset number of times is determined to be smaller than the negative number of the first threshold value, determining that the battery is in a discharging state.
In the foregoing solution, the second processing module is specifically configured to determine that the battery is fully charged when the voltage, the battery state, and the duration of the battery state satisfy the following conditions:
determining that the voltage exceeds a first voltage value; the first voltage value is used for representing the difference value between the maximum value of the voltage in the detection process and a second threshold value;
determining that the battery is in a steady state and the previous state of the battery is a charging state; and the number of the first and second groups,
and determining that the duration of the battery in the stable state exceeds a preset duration.
In the foregoing solution, the first processing module is further configured to determine a smoothing coefficient, and perform smoothing processing on the voltage according to the smoothing coefficient to obtain a smoothed voltage.
In the foregoing solution, the first processing module is specifically configured to read a stored corresponding relationship between a smoothing coefficient and a voltage difference value according to the voltage difference value, and determine a smoothing coefficient corresponding to the voltage difference value; the smoothing coefficient is adjusted to follow the variation of the voltage difference value.
An embodiment of the present invention further provides a full charge detection apparatus, where the apparatus includes: a processor and a memory for storing a computer program capable of running on the processor;
wherein the processor is configured to execute any of the steps of the full charge detection method described above when running the computer program.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements any of the steps of the full charge detection method described above.
The full charge detection method, the full charge detection device and the storage medium provided by the embodiment of the invention are used for acquiring the voltage of a battery, continuously detecting the voltage difference value of adjacent time points, determining the state of the battery according to the voltage difference value and recording the duration of the state of the battery; and determining whether the battery is fully charged according to the voltage, the battery state and the duration of the battery state. According to the scheme provided by the embodiment of the invention, the charging and discharging conditions of the battery are monitored according to the change of the battery voltage by only detecting the battery voltage, the full charge of the battery is determined immediately, and the detection is convenient, simple and efficient.
Drawings
Fig. 1 is a schematic flow chart of a full charge detection method according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of another full charge detection method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a full charge detection apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another full charge detection device according to an embodiment of the present invention.
Detailed Description
In the embodiment of the invention, the battery voltage is obtained, the voltage difference value of adjacent time points is continuously detected, the battery state is determined according to the voltage difference value, and the duration of the battery state is recorded; and determining whether the battery is fully charged according to the voltage, the battery state and the duration of the battery state.
The present invention will be described in further detail with reference to examples.
Fig. 1 is a schematic flow chart of a full charge detection method according to an embodiment of the present invention; the method may be applied to a battery test device, as shown in fig. 1, the method comprising:
Specifically, the battery may be a secondary battery, such as a secondary battery of an electric vehicle;
the acquiring the battery voltage includes: the battery detection equipment is connected with the battery and periodically acquires the voltage of the battery.
Here, the continuously detecting the voltage difference values at the adjacent time points includes:
the battery detection equipment continuously detects the voltages of adjacent time points according to a preset time interval, and determines the voltage difference value according to the voltages of the adjacent time points;
here, the voltage difference may be obtained by subtracting the voltage at the previous time point from the voltage at the next time point.
The preset time interval can be preset by a manufacturer of the battery detection equipment according to experience and is stored in the battery detection equipment; for example, the preset time interval may be set to 1 minute, 2 minutes, 5 minutes, or the like.
In this embodiment, the obtaining the battery voltage may further include:
and determining a smoothing coefficient, and smoothing the voltage according to the smoothing coefficient to obtain the smoothed voltage.
Here, the determining the smoothing coefficient includes:
reading a corresponding relation between the stored smoothing coefficient and the voltage difference value according to the voltage difference value, and determining the smoothing coefficient corresponding to the voltage difference value; the smoothing coefficient is adjusted to follow the variation of the voltage difference value.
The correspondence between the smoothing coefficient and the voltage difference value may be preset by a manufacturer of the battery test apparatus according to experience and stored in the battery test apparatus.
Here, the smoothing coefficient is adjusted in accordance with a variation of the voltage difference value, and the smaller the absolute value of the voltage difference value is, the smaller the smoothing coefficient is, whereas the larger the absolute value of the voltage difference value is, the larger the smoothing coefficient is.
Specifically, the determining the battery state according to the voltage difference includes:
determining that the battery is in a steady state when the absolute value of the voltage difference value detected for a first preset number of consecutive times is less than or equal to a first threshold value;
determining that the battery is in a charging state when the voltage difference value detected for a second preset number of consecutive times is greater than the first threshold value;
and when the voltage difference value detected for a third preset number of times is determined to be smaller than the negative number of the first threshold value, determining that the battery is in a discharging state.
Specifically, the battery detection device continuously detects voltage difference values of adjacent time points at preset time intervals, and determines whether the voltage difference values satisfy a first condition, that is, an absolute value of the battery difference value is less than or equal to a first threshold, or whether the voltage difference values satisfy a second condition, that is, the voltage difference values are greater than the first threshold, or whether the voltage difference values satisfy a third condition, that is, the voltage difference values are less than a negative number of the first threshold;
correspondingly recording the times that the voltage difference value meets a first condition, a second condition or a third condition in the process, namely determining the first preset quantity, the second preset quantity or the third preset quantity;
and determining the battery state to be a stable state, a charging state or a discharging state by combining the first condition, the second condition, the third condition, the first preset number, the second preset number and the third preset number.
In this embodiment, the battery detection device may further record the duration of each battery state and the maximum value of the voltage in the detection process in the process of detecting the battery state.
Specifically, the recording the duration of each battery state includes:
recording each time point for acquiring the battery voltage, acquiring initial time and end time for acquiring the battery voltage corresponding to the stable state, the charging state or the discharging state after determining that the battery state is the stable state, the charging state or the discharging state, and determining the duration of each battery state according to the initial time and the end time.
And 102, determining whether the battery is fully charged according to the voltage, the battery state and the duration of the battery state.
Here, the determining whether the battery is fully charged according to the voltage, the battery state, and the duration of the battery state includes:
determining that the battery is fully charged when it is determined that the voltage, the battery state, and the duration of the battery state satisfy the following conditions:
determining that the voltage exceeds a first voltage value; the first voltage value is used for representing the difference value between the maximum value of the voltage in the detection process and a second threshold value;
determining that the battery is in a steady state and the previous state of the battery is a charging state; and the number of the first and second groups,
and determining that the duration of the battery in the stable state exceeds a preset duration.
If the voltage, the battery state and the duration of the battery state do not simultaneously satisfy the above conditions, the battery is not fully charged.
Here, the first voltage value represents a difference between a maximum value of the voltage during the detection and a second threshold value; the voltage exceeding the first voltage value characterizes the voltage approaching a maximum value of voltage.
The second threshold and the preset time period may be preset by a manufacturer of the battery detection device according to experience and stored in the battery detection device.
By using the method in the embodiment, the battery state is determined according to the change of the battery voltage by detecting the battery voltage, and the full charge of the battery is determined in real time, so that a user is reminded in real time when the battery is fully charged, and further dangers such as fire disasters caused by overcharge are prevented.
Fig. 2 is a schematic flow chart of another full charge detection method according to an embodiment of the present invention; as shown in fig. 2, the method may be applied to a battery test apparatus, and the method may include:
Here, by smoothing the acquired voltage, the influence of the voltage fluctuation on the calculation logic can be filtered out.
Specifically, the smoothing of the collected voltage by using the moving index averaging method includes:
smoothing the collected voltage according to the following formula (1):
St＝αAt+(1-α)St-1 (1)
wherein S istRepresenting the smoothed voltage value, alpha representing the smoothing factor, AtIndicating the voltage collected, St-1Representing the last smoothed voltage value.
Here, the step 203 includes: and subtracting the last voltage from the current voltage to obtain the difference value delta V.
After step 203, the method may further comprise: adjusting a smoothing coefficient alpha according to the difference value delta V; specifically, the stored corresponding relationship between the smoothing coefficient and the voltage difference is read according to the difference Δ V, and the smoothing coefficient corresponding to the difference Δ V is determined.
Here, the smaller the absolute value of the difference Δ V, the smaller α, and conversely, the larger the absolute value of the difference Δ V, the larger α.
The correspondence between the smoothing coefficient and the voltage difference value may be preset by a manufacturer of the battery inspection apparatus according to experience and stored in the battery inspection apparatus.
For example, in a specific embodiment, the sampling period may be one minute, and the corresponding relationship between the difference Δ V and the smoothing coefficient α may be as follows:
when | Δ V | <0.03, α ═ 0.15; when | delta V | is more than or equal to 0.03 and less than 0.06, the alpha is 0.25; when | delta V | is more than or equal to 0.06 and less than 0.10, alpha is 0.35; when |, Δ V | ≧ 0.10, α is 0.50.
And step 204, determining the state of the battery according to the difference value delta V.
Specifically, the step 204 includes:
determining that the absolute value | Δ V | ≦ a first threshold (noted Vthres) and continuously maintaining a first preset number (noted Nstable) for a number of times, determining that the battery is in a steady state;
determining that the difference Δ V > Vthres and is maintained for a second predetermined number (denoted Nrise) of times in succession, determining that the battery is in a state of charge;
determining that said difference av < the negative value of the first threshold value (denoted Vthres) and continuously maintaining a third predetermined number (denoted Ndown) of times, determines that said battery is in a discharged state.
here, the recording the duration of each state specifically includes: recording the duration of the stable state and recording as a Ttable; and recording the duration of the charging state and recording the duration as Trise.
Specifically, the battery detection device determines whether the battery satisfies the following three conditions, and determines that the battery is fully charged when determining that the following three conditions are satisfied:
a. the current voltage exceeds a first voltage value;
b. the current battery state is a stable state, and the last battery state is a charging state;
c. the duration of the charging state is greater than a certain threshold (denoted Tthres) to reject the interference.
Here, the first voltage value is the maximum voltage Vmax minus a second threshold; the fact that the current voltage exceeds the first voltage value means that the current voltage is close to the maximum voltage Vmax.
It should be noted that the second threshold values, Vthres, Nstable, Nrise, Ndown, Tthres, which are described above, may be preset by a manufacturer of the battery test apparatus according to experience and stored in the battery test apparatus.
In this embodiment, the second threshold may be 0.2V, the Vthres may be 0.8V, the Nstable may be 10 times, the Nrise may be 5 times, the Ndown may be 3 times, and the Tthres may be 65 minutes.
And step 207, if the battery is not fully charged, delaying a sampling period, and returning to the step 201.
And step 208, the battery is fully charged, and the detection is finished.
Fig. 3 is a schematic structural diagram of a full charge detection apparatus according to an embodiment of the present invention; as shown in fig. 3, the apparatus includes: a first processing module 301 and a second processing module 302; wherein the content of the first and second substances,
the first processing module 301 is configured to obtain a battery voltage, continuously detect a voltage difference between adjacent time points, determine a battery state according to the voltage difference, and record a duration of the battery state;
the second processing module 302 is configured to determine whether the battery is fully charged according to the voltage, the battery status, and the duration of the battery status determined by the first processing module 301.
Specifically, the second processing module 302 is specifically configured to determine that the battery is in a steady state when it is determined that the absolute value of the voltage difference value detected for a first preset number of consecutive times is smaller than or equal to a first threshold;
determining that the battery is in a charging state when the voltage difference value detected for a second preset number of consecutive times is greater than the first threshold value;
and when the voltage difference value detected for a third preset number of times is determined to be smaller than the negative number of the first threshold value, determining that the battery is in a discharging state.
Specifically, the second processing module 302 is specifically configured to determine that the battery is fully charged when the voltage, the battery state, and the duration of the battery state satisfy the following conditions:
determining that the voltage exceeds a first voltage value; the first voltage value is used for representing the difference value between the maximum value of the voltage in the detection process and a second threshold value;
determining that the battery is in a steady state and the previous state of the battery is a charging state; and the number of the first and second groups,
and determining that the duration of the battery in the stable state exceeds a preset duration.
Specifically, the first processing module 301 is further configured to determine a smoothing coefficient, and perform smoothing processing on the voltage according to the smoothing coefficient to obtain a smoothed voltage.
Specifically, the first processing module 301 is specifically configured to read a stored corresponding relationship between a smoothing coefficient and a voltage difference value according to the voltage difference value, and determine a smoothing coefficient corresponding to the voltage difference value; the smoothing coefficient is adjusted to follow the variation of the voltage difference value.
It should be noted that: in the full charge detection device provided in the above embodiment, only the division of the program modules is illustrated, and in practical applications, the processing distribution may be completed by different program modules according to needs, that is, the internal structure of the device is divided into different program modules to complete all or part of the processing described above. In addition, the full charge detection apparatus provided in the above embodiments and the full charge detection method embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.
Fig. 4 is a schematic structural diagram of another full charge detection apparatus according to an embodiment of the present invention; as shown in fig. 4, the apparatus 40 includes: a processor 401 and a memory 402 for storing computer programs executable on said processor; wherein, the processor 401 is configured to execute, when running the computer program, the following steps: acquiring battery voltage, continuously detecting voltage difference values of adjacent time points, determining a battery state according to the voltage difference values, and recording the duration of the battery state; and determining whether the battery is fully charged according to the voltage, the battery state and the duration of the battery state.
In an embodiment, the processor 401, when running the computer program, is configured to perform: determining that the battery is in a steady state when the absolute value of the voltage difference value detected for a first preset number of consecutive times is less than or equal to a first threshold value; determining that the battery is in a charging state when the voltage difference value detected for a second preset number of consecutive times is greater than the first threshold value; and when the voltage difference value detected for a third preset number of times is determined to be smaller than the negative number of the first threshold value, determining that the battery is in a discharging state.
In an embodiment, the processor 401, when running the computer program, is configured to perform: determining that the battery is fully charged when it is determined that the voltage, the battery state, and the duration of the battery state satisfy the following conditions: determining that the voltage exceeds a first voltage value; the first voltage value is used for representing the difference value between the maximum value of the voltage in the detection process and a second threshold value; determining that the battery is in a steady state and a previous state of the battery is a charging state; and determining that the duration of the battery in the steady state exceeds a preset duration.
In an embodiment, the processor 401, when running the computer program, is configured to perform: and determining a smoothing coefficient, and smoothing the voltage according to the smoothing coefficient to obtain the smoothed voltage.
In an embodiment, the processor 401, when running the computer program, is configured to perform: reading a corresponding relation between the stored smoothing coefficient and the voltage difference value according to the voltage difference value, and determining the smoothing coefficient corresponding to the voltage difference value; the smoothing coefficient is adjusted to follow the variation of the voltage difference value.
It should be noted that: the full charge detection device and the full charge detection method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.
Of course, in practical applications, as shown in fig. 4, the apparatus 40 may further include: at least one network interface 403. The various components of the device 40 are coupled together by a bus system 404. It is understood that the bus system 404 is used to enable communications among the components. The bus system 404 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 404 in FIG. 4. The number of the processors 404 may be at least one. The network interface 403 is used for wired or wireless communication between the apparatus 40 and other devices.
The method disclosed in the above embodiments of the present invention may be applied to the processor 401, or implemented by the processor 401. The processor 401 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 401. The Processor 401 described above may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device fig. 4, discrete gate or transistor logic, discrete hardware components, or the like. Processor 401 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the memory 402, and the processor 401 reads the information in the memory 402 and performs the steps of the aforementioned methods in conjunction with its hardware.
In an exemplary embodiment, the full charge detection Device 40 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, Micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the aforementioned methods.
It will be appreciated that memory in embodiments of the invention, such as memory 402, may be volatile memory or nonvolatile memory, and may include both volatile and nonvolatile memory. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a magnetic random access Memory (Flash Memory), a magnetic surface Memory, an optical Disc, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The described memory for embodiments of the present invention is intended to comprise, without being limited to, these and any other suitable types of memory.
In an exemplary embodiment, an embodiment of the present invention further provides a computer-readable storage medium, for example, a memory 402, including a computer program, which is executable by a processor 401 of the full charge detection apparatus 40 to perform the steps of the foregoing method.
Specifically, an 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 the processor 401, performs: acquiring battery voltage, continuously detecting voltage difference values of adjacent time points, determining a battery state according to the voltage difference values, and recording the duration of the battery state; and determining whether the battery is fully charged according to the voltage, the battery state and the duration of the battery state.
In one embodiment, the computer program, when executed by the processor 401, performs: determining that the battery is in a steady state when the absolute value of the voltage difference value detected for a first preset number of consecutive times is less than or equal to a first threshold value; determining that the battery is in a charging state when the voltage difference value detected for a second preset number of consecutive times is greater than the first threshold value; and when the voltage difference value detected for a third preset number of times is smaller than the negative number of the first threshold value, determining that the battery is in a discharge state.
In one embodiment, the computer program, when executed by the processor 401, performs: determining that the battery is fully charged when it is determined that the voltage, the battery state, and the duration of the battery state satisfy the following conditions: determining that the voltage exceeds a first voltage value; the first voltage value is used for representing the difference value between the maximum value of the voltage in the detection process and a second threshold value; determining that the battery is in a steady state and the previous state of the battery is a charging state; and determining that the duration of the battery in the steady state exceeds a preset duration.
In one embodiment, the computer program, when executed by the processor 401, performs: and determining a smoothing coefficient, and smoothing the voltage according to the smoothing coefficient to obtain the smoothed voltage.
In one embodiment, the computer program, when executed by the processor 401, performs: reading a corresponding relation between the stored smoothing coefficient and the voltage difference value according to the voltage difference value, and determining the smoothing coefficient corresponding to the voltage difference value; the smoothing coefficient is adjusted to follow the variation of the voltage difference value.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media capable of storing program code.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. that are within the spirit and principle of the present invention should be included in the present invention.
Claims (10)
1. A full charge detection method, the method comprising:
acquiring battery voltage, continuously detecting voltage difference values of adjacent time points according to a preset time interval, determining a battery state according to the voltage difference values, and recording the duration of the battery state; the battery state includes: a steady state, a charged state, and a discharged state;
determining that the battery is in a steady state when the absolute value of the voltage difference value detected for a first preset number of times is determined to be less than or equal to a first threshold value;
determining that the battery is in a charging state when the voltage difference value detected for a second preset number of consecutive times is greater than the first threshold value;
determining that the battery is in a discharging state when the voltage difference value detected for a third preset number of times is smaller than the negative number of the first threshold value;
determining whether the battery is fully charged according to the voltage, the battery state and the duration of the battery state; wherein the battery state is that the battery is in the steady state and the previous state of the battery is a charging state.
2. The method of claim 1, wherein said determining whether the battery is fully charged based on the voltage, the battery status, and the duration of the battery status comprises:
determining that the battery is fully charged when it is determined that the voltage, the battery state, and the duration of the battery state satisfy the following conditions:
determining that the voltage exceeds a first voltage value; the first voltage value is used for representing the difference value between the maximum value of the voltage in the detection process and a second threshold value;
determining that the battery is in a steady state and the previous state of the battery is a charging state; and (c) a second step of,
and determining that the duration of the battery in the stable state exceeds a preset duration.
3. The method of claim 1, wherein the obtaining the battery voltage further comprises: and determining a smoothing coefficient, and smoothing the voltage according to the smoothing coefficient to obtain the smoothed voltage.
4. The method of claim 3, wherein determining the smoothing factor comprises: reading a corresponding relation between the stored smoothing coefficient and the voltage difference value according to the voltage difference value, and determining the smoothing coefficient corresponding to the voltage difference value; the smoothing coefficient is adjusted to follow the variation of the voltage difference value.
5. A full charge detection apparatus, the apparatus comprising: a first processing module and a second processing module; wherein the content of the first and second substances,
the first processing module is used for acquiring the voltage of the battery, continuously detecting the voltage difference value of adjacent time points according to a preset time interval, determining the state of the battery according to the voltage difference value and recording the duration of the state of the battery; the battery state includes: a steady state, a charged state, and a discharged state;
the second processing module is specifically configured to determine that the battery is in a steady state when the absolute value of the voltage difference detected for a first preset number of consecutive times is smaller than or equal to a first threshold; determining that the battery is in a charging state when the voltage difference value detected for a second preset number of consecutive times is greater than the first threshold value; determining that the battery is in a discharging state when the voltage difference value detected for a third preset number of times is smaller than the negative number of the first threshold value; the first processing module is further used for determining whether the battery is fully charged according to the voltage, the battery state and the duration of the battery state determined by the first processing module; wherein the battery state is that the battery is in the steady state and the previous state of the battery is a charging state.
6. The apparatus of claim 5, wherein the second processing module is specifically configured to determine that the battery is fully charged when the voltage, the battery status, and the duration of the battery status satisfy the following conditions:
determining that the voltage exceeds a first voltage value; the first voltage value is used for representing the difference value between the maximum value of the voltage in the detection process and a second threshold value;
determining that the battery is in a steady state and the previous state of the battery is a charging state; and the number of the first and second groups,
and determining that the duration of the battery in the stable state exceeds a preset duration.
7. The apparatus of claim 5, wherein the first processing module is further configured to determine a smoothing coefficient, and perform smoothing on the voltage according to the smoothing coefficient to obtain the smoothed voltage.
8. The apparatus according to claim 7, wherein the first processing module is specifically configured to read a stored corresponding relationship between a smoothing coefficient and a voltage difference value according to the voltage difference value, and determine a smoothing coefficient corresponding to the voltage difference value; the smoothing coefficient is adjusted to follow the variation of the voltage difference value.
9. A full charge detection apparatus, the apparatus comprising: a processor and a memory for storing a computer program capable of running on the processor;
wherein the processor is adapted to perform the steps of the method of any one of claims 1 to 4 when running the computer program.
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 of any one of claims 1 to 4.
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