CN112448448A - Charging control method and device, earphone, electronic equipment and readable storage medium - Google Patents
Charging control method and device, earphone, electronic equipment and readable storage medium Download PDFInfo
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- CN112448448A CN112448448A CN202011268365.4A CN202011268365A CN112448448A CN 112448448 A CN112448448 A CN 112448448A CN 202011268365 A CN202011268365 A CN 202011268365A CN 112448448 A CN112448448 A CN 112448448A
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- 238000000034 method Methods 0.000 title claims abstract description 127
- 230000008569 process Effects 0.000 claims abstract description 80
- 230000002159 abnormal effect Effects 0.000 claims abstract description 62
- 238000004891 communication Methods 0.000 claims description 54
- 238000001514 detection method Methods 0.000 claims description 31
- 230000005856 abnormality Effects 0.000 claims description 25
- 239000003990 capacitor Substances 0.000 claims description 13
- 238000004590 computer program Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 9
- 230000006870 function Effects 0.000 description 8
- 230000001186 cumulative effect Effects 0.000 description 6
- 238000013507 mapping Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 230000009977 dual effect Effects 0.000 description 1
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- 238000001914 filtration Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical group 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1025—Accumulators or arrangements for charging
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Abstract
The application provides a charging control method, a charging control device, an earphone, an electronic device and a computer readable storage medium, wherein the charging control method comprises the following steps: detecting charging parameters of the electronic equipment in a charging process; detecting whether the electronic equipment is abnormal in the charging process according to the charging parameters; if the charging process of the electronic equipment is abnormal, the shutdown operation is executed, based on the method, once the charging process of the electronic equipment is abnormal, the shutdown operation can be directly executed without receiving a shutdown instruction sent by the charging box, the electronic equipment controls each circuit module in the electronic equipment to be in a shutdown state, and further the electronic equipment is in the shutdown state, so that the situation that the electronic equipment cannot be charged but is always in a standby state due to abnormal conditions such as poor contact and abnormal charging equipment can be avoided, further, the consumption of electric quantity can be avoided, and the electric quantity of the electronic equipment is saved.
Description
Technical Field
The present application relates to charging control, and more particularly, to a charging control method and apparatus, a headset, an electronic device, and a computer-readable storage medium.
Background
With the development of charging control technology, an external charging device may be used to charge an electronic device, such as a True Wireless Stereo (TWS) headset. Generally, the charging control of the earphone is realized by outputting a voltage to a charging interface, such as a POGO PIN, on the earphone through a charging port, such as the POGO PIN, of a charging box. However, in the conventional method, the electronic device is always in the on state, which always consumes the power of the electronic device and affects the endurance time of the electronic device.
Disclosure of Invention
The embodiment of the application provides a charging control method and device, an earphone, electronic equipment and a computer readable storage medium, and electric quantity can be saved.
A charging control method is applied to electronic equipment and comprises the following steps:
detecting charging parameters of the electronic equipment in a charging process;
detecting whether the electronic equipment is abnormal in the charging process according to the charging parameters;
and if the abnormality exists, executing shutdown operation.
The charging control method can detect the charging parameters of the electronic equipment in the charging process, detect whether the electronic equipment is abnormal in the charging process according to the charging parameters, and execute shutdown operation if the electronic equipment is abnormal. Based on the method, once the charging process of the electronic equipment is abnormal, the shutdown operation can be directly executed without receiving a shutdown instruction sent by the charging box, and the electronic equipment controls each circuit module in the electronic equipment to be in a shutdown state, so that the electronic equipment is in the shutdown state, the situation that the electronic equipment cannot be charged but is always in a standby state due to abnormal conditions such as poor contact and abnormal charging equipment can be avoided, the consumption of electric quantity can be avoided, the electric quantity of the electronic equipment is saved, and the endurance time of the electronic equipment is prolonged.
A charge control device comprising:
the number of the battery cells is increased by the number of the battery cells,
the charging interface is used for being connected with charging equipment;
the charging circuit is respectively connected with the battery unit and the charging interface and used for receiving a charging signal and processing the charging signal to output a signal suitable for charging the battery unit;
the detection module is connected with the charging interface and used for detecting charging parameters in the charging process;
and the control module is respectively connected with the charging circuit and the detection module and is used for detecting whether the charging control device is abnormal in the charging process according to the charging parameters, and if the charging control device is abnormal, executing shutdown operation.
An earphone, comprising:
such as the charging control means described above.
The charging control device and the earphone comprise a battery unit, a charging interface, a charging circuit, a detection module and a control module, wherein the control module can judge whether the charging process of the battery unit is abnormal or not according to the charging parameters detected by the detection module, and controls the charging control device to be powered off if the charging process of the battery unit is abnormal, and based on the device, once the charging process of the battery unit is abnormal, the control module controls each circuit module in the charging control device to be in a powered off state without receiving a power-off command sent by a charging box, so that the charging control device is in the powered off state, the situation that the charging control device cannot be charged but is always in a standby state due to abnormal conditions such as poor contact and abnormal charging box can be avoided, the consumption of electric quantity can be avoided, and the electric quantity of the charging control device can be saved, the endurance time of the electronic equipment is improved.
An electronic device comprising a memory and a processor, the memory having stored therein a computer program which, when executed by the processor, causes the processor to carry out the steps of the method as described above.
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 as described above.
The electronic device and the computer-readable storage medium can detect the charging parameters of the electronic device in the charging process, detect whether the electronic device is abnormal in the charging process according to the charging parameters, and execute shutdown operation if the electronic device is abnormal. Based on the method, once the charging process of the electronic equipment is abnormal, the shutdown operation can be directly executed without receiving a shutdown instruction sent by the charging box, and the electronic equipment controls each circuit module in the electronic equipment to be in a shutdown state, so that the electronic equipment is in the shutdown state, the situation that the electronic equipment cannot be charged but is always in a standby state due to abnormal conditions such as poor contact and abnormal charging equipment can be avoided, the consumption of electric quantity can be avoided, the electric quantity of the electronic equipment is saved, and the endurance time of the electronic equipment is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present application 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 application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a diagram of an exemplary charging control method;
FIG. 2 is a flow diagram of a charge control method in one embodiment;
FIG. 3 is a flow chart of a charge control method in another embodiment;
FIG. 4 is a flow chart of a charge control method in yet another embodiment;
FIG. 5 is a flowchart of a charge control method in yet another embodiment;
fig. 6 is a block diagram showing the structure of a charge control device according to an embodiment;
fig. 7 is a block diagram showing a structure of a charge control device according to another embodiment;
fig. 8 is a block diagram showing a configuration of a charging control apparatus according to still another embodiment;
fig. 9 is a schematic diagram of an internal structure of an electronic device in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first switch tube may be referred to as a second switch tube, and similarly, a second switch tube may be referred to as a first switch tube, without departing from the scope of the present application. The first switch tube and the second switch tube are both switch tubes, but are not the same switch tube.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are 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 the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. In the description of the present application, "a number" means at least one, such as one, two, etc., unless specifically limited otherwise.
Fig. 1 is a schematic diagram of an application environment of a charging control method in an embodiment. As shown in fig. 1, the application environment includes an electronic device 10 and a charging device 20 for charging the electronic device 10. The electronic device 10 may be an earphone, a mobile phone, a tablet computer, a PDA (Personal Digital Assistant), a POS (Point of Sales), a vehicle-mounted computer, a wearable device (a bracelet, smart glasses, etc.), and the like. The charging device 20 may be a charging box, a charging dock, a charger, etc.
Fig. 2 is a flowchart of a charging control method in one embodiment. The charging control method in this embodiment is described by taking the electronic device (e.g., the headset) 10 in fig. 1 as an example, and as shown in fig. 2, the charging control method includes steps 202 to 206.
In one embodiment, the headset may include a charging interface, a detection module, and a charging circuit. The charging interface is used for being connected with the charging box so as to receive charging parameters and communication data sent by the charging box. The charging circuit is connected with the charging interface and used for receiving the charging parameters and processing the charging parameters to output the charging parameters suitable for charging the earphone. The detection module is connected with the charging interface and used for detecting the charging parameters sent by the charging box. Wherein the charging parameter may include at least one of a charging current, a charging voltage, and a charging temperature. If the charging parameters include charging current and charging voltage, the corresponding detection module can adopt a voltage division circuit composed of discrete elements such as a resistor and/or a capacitor to realize the detection of the charging parameters. If the charging parameter includes the charging temperature, the corresponding detection module can adopt a temperature detection module composed of a temperature sensitive device and the like to realize the detection of the charging parameter.
It should be noted that, in the embodiment of the present application, a specific form of the detection module is not further limited, and is not limited to the above example.
And 204, detecting whether the electronic equipment is abnormal in the charging process according to the charging parameters.
The earphone can judge whether the earphone is abnormal in the charging process according to the charging parameters obtained by detection. Whether the charging parameters are abnormal or not can be judged by judging whether the charging parameters detected by the earphone are out of the preset range corresponding to the charging parameters or not. For example, if the charging voltage and/or the charging current received by the earphone is smaller than the charging voltage and/or the charging current sent by the charging box, it is determined that the charging process of the earphone is abnormal; for example, if the temperature signal is higher than the preset temperature threshold, it is determined that there is an abnormality in the charging process of the headset. Whether the earphone is abnormal or not can be judged by judging whether the earphone receives the charging parameters or the communication data sent by the charging box or not, for example, when the charging interface of the earphone is separated from the charging port of the charging box, namely the earphone is physically disconnected from the charging box, the charging process of the earphone is determined to be abnormal, and the like.
In step 206, if there is an exception, a shutdown operation is performed.
If the charging process of the earphone is abnormal, the shutdown operation is executed to control the shutdown of the earphone. For example, the charging circuit may be controlled to stop charging the battery unit, and after the charging circuit stops charging the battery unit, the control module of the earphone is controlled to be in a shutdown state, that is, a shutdown state supporting a low-power wake-up function to perform soft reset.
The charging control method can detect the charging parameters of the electronic equipment in the charging process, detect whether the electronic equipment is abnormal in the charging process according to the charging parameters, and control the electronic equipment to shut down if the electronic equipment is abnormal. Based on the method, once the charging process of the electronic equipment is abnormal, the shutdown operation can be directly executed without receiving a shutdown instruction sent by the charging box, and the electronic equipment controls each circuit module in the electronic equipment to be in a shutdown state, so that the electronic equipment is in the shutdown state, the situation that the electronic equipment cannot be charged but is always in a standby state due to abnormal conditions such as poor contact and abnormal charging equipment can be avoided, the consumption of electric quantity can be avoided, the electric quantity of the electronic equipment is saved, and the endurance time of the electronic equipment is prolonged.
Fig. 3 is a flowchart illustrating a charging control method according to another embodiment. In one embodiment, the charging control method includes steps 302-306.
And step 304, detecting whether the electronic equipment is abnormal in the charging process according to the charging parameters.
When the earphone is abnormal in the charging process, the charging circuit can be cut off from the charging path between the charging circuit and the charging interface so as to control the charging circuit to stop charging the battery unit of the earphone; the charging management chip in the charging circuit can be controlled to be in a shutdown state so as to control the charging circuit to stop charging the battery unit of the earphone and the like.
When the charging circuit stops charging the battery unit, the earphone may further detect whether a wake-up command sent by the charging box is received within a preset time period. The wake-up instruction is used for waking up the charging circuit so that the charging circuit continues to charge the battery unit. In particular, the headset may further include a communication module connected to the charging interface, and the communication module may be configured to transmit communication data. Data transmission functions such as data transmission and reception between the earphone and the charging box can be realized based on the communication module. For example, when the charging circuit of the headset stops charging the battery unit, the headset may control the communication module to implement data transmission with the charging box, so that the headset is in a communication state. When the headset is in a communication state, the headset can monitor whether the communication data includes the wake-up instruction or not in real time within a preset time period. For example, the wake-up command may be transmitted in the form of a predetermined code string.
Specifically, the preset time period may be set to a millisecond order, a second order, such as 0 millisecond, 1 second, etc., and in the embodiment of the present application, the specific duration of the preset time period is not further limited, nor is it limited to the above example.
In step 308, if the wake-up command is not received, a shutdown operation is performed.
When the charging circuit stops charging the battery unit and the communication module does not receive the wake-up instruction sent by the charging box within the preset time period, it indicates that the abnormality of the charging process is true, that is, the abnormality is valid, and at this time, the control module of the earphone can be controlled to be in a shutdown state.
According to the charging control method, when the charging circuit of the earphone stops charging the battery unit, whether the awakening instruction sent by the charging box is received or not can be further detected, the earphone is controlled to be powered off under the condition that the awakening instruction is not received, a buffer time period can be given to the earphone by setting the preset time period, the phenomenon that the charging is interrupted for a short time and the earphone is directly controlled to be powered off is avoided, and the charging efficiency and flexibility can be improved.
In one embodiment, the charging control method further includes step 310, if the wake-up command is received, controlling the charging circuit to continue charging the battery unit of the electronic device.
When the charging circuit stops charging the battery unit and the communication module of the earphone receives the awakening instruction sent by the charging box within the preset time period, the earphone can control the charging circuit to continue charging the battery unit of the earphone according to the awakening instruction. Specifically, if the charging path where the charging circuit is located is disconnected, the charging path between the charging circuit and the charging interface may be turned on at this time, so as to control the charging circuit to continue to charge the battery unit of the earphone; if the charging management chip of the charging circuit is currently in a shutdown state, the charging management chip can be awakened to be in a working state so as to control the charging circuit to continue charging the battery unit of the earphone.
In the charging control method in this embodiment, even when the charging circuit stops charging the battery unit of the earphone, the charging circuit may be controlled to continue charging the battery unit based on the wake-up instruction sent by the charging box, so as to provide flexibility for charging the earphone, thereby avoiding occurrence of an earphone shutdown condition caused by abnormal misjudgment in the charging process.
In one embodiment, detecting whether the electronic device is abnormal in the charging process according to the charging parameter specifically includes determining that the charging process is abnormal if the charging parameter is out of a preset range corresponding to the charging parameter. Specifically, the charging parameter includes at least one of a charging voltage, a charging current, and a charging temperature. If the charging parameter includes only one signal, such as charging voltage, charging current or charging temperature, the preset ranges corresponding to different charging parameters are different. If the value of the charging parameter is within the corresponding preset range, the charging process of the earphone can be determined to be normal (i.e. no abnormality exists), and if the value of the charging parameter is outside the preset range, the charging process of the earphone can be determined to be abnormal.
In one embodiment, the charging parameter is a charging voltage, and if the charging voltage is lower than a preset voltage threshold, it is determined that an abnormality exists in the charging process. Wherein, the preset voltage threshold can be understood as a standard charging voltage output by the charging box. Illustratively, the preset voltage threshold is 5V, and if the charging voltage detected by the detection module of the headset is less than 5V, it is determined that there is an abnormality in the charging process. In addition, if the detection module of the headset does not detect the charging voltage, the charging voltage may be understood as 0V.
Optionally, when the charging parameter is the charging current, it may also be detected whether the charging current is within a preset current range year, and if so, the charging process of the earphone is normal; otherwise, the charging process of the earphone is abnormal.
In one embodiment, the charging parameter is a temperature signal, and if the temperature signal is within a preset temperature range, the charging process of the earphone is normal; otherwise, the charging process of the earphone is abnormal. Illustratively, the preset temperature range may be set between-40 degrees Celsius. And if the value of the temperature signal is 50 ℃, determining that the charging process of the earphone is abnormal.
It should be noted that, when the charging parameter includes at least two signals, the boundary value of each preset range may be adjusted according to the correlation between the respective signals.
As shown in fig. 4, in one embodiment, the charging control method further includes:
in step 404, the charging frequency accumulated by the electronic device is obtained.
The earphone is built in the charging box, when the charging parameters of the charging box are received for charging, the earphone can count the charging frequency (or called as charging frequency) of the battery unit, and can cumulatively count the charging frequency and store the charging frequency.
In one embodiment, the earphone also determines whether the current charging process meets the requirement of the cumulative count during the process of performing the cumulative count on the charging frequency of the battery, performs the cumulative count if the current charging process meets the requirement of the cumulative count, and does not perform the charging frequency counting during the current charging process if the current charging process does not meet the requirement of the cumulative count. For example, the cumulative count requirement may be interpreted as a complete charging process.
And 406, constructing a preset range corresponding to the charging parameter according to the charging parameter and the charging frequency.
In one embodiment, the earphone may acquire the charging parameters under the preset charging conditions during the charging process. Wherein the preset condition can be configured in the earphone in advance. The preset condition may be a preset duration of constant voltage continuous charging from a preset characteristic point, and the corresponding charging parameter is a charging temperature or a charging current. The preset condition may also be from a first preset current to a second preset current, and the corresponding charging parameter is a charging temperature.
The preset range corresponds to the charging parameters, that is, each charging parameter is configured with a preset range. When the preset charging conditions are different, the preset ranges of the charging parameters for the same charging frequency may be the same or different. That is, the mapping relationship between the charging frequency, the preset charging condition, the charging parameter, and the preset range may be correspondingly constructed. The preset charging condition and the charging frequency correspond to a preset range together. In establishing the relationship between the four, the preset range is f (preset charging condition, charging frequency, charging parameter). The relationship may be fixed in the form of a mapping table. The relationship may be system provided, recommended, or customized by the user.
The electronic equipment can acquire the charging frequency of the current charging process and the charging parameter of the current charging process, and construct a preset range corresponding to the charging parameter according to the charging frequency and the charging parameter. The charging frequency is different, and the detection standards for detecting the charging parameters are also different. For example, when the charging frequency is 100 times and 200 times, respectively, the result of detecting whether the battery cell is abnormal may be different for the same charging parameter due to different charging frequencies.
In step 408, if the charging parameter is out of the preset range corresponding to the charging parameter, it is determined that there is an abnormality in the charging process.
In step 410, a shutdown operation is performed.
In one embodiment, if the preset charging condition is a preset duration of continuous charging from the preset characteristic point, the corresponding charging parameter is temperature information. The earphone can determine the preset charging condition and the preset range of the charging parameters corresponding to the charging frequency based on the mapping relation. For example, a temperature value corresponding to 15 minutes after maintaining a charging voltage of 5V (constant voltage) for charging for a preset time period from a charging current of 1A may be used as the charging parameter. Based on the mapping relation, the standard parameter range of the temperature information corresponding to the charging frequency of 100 times is 27.5-28.3 ℃. If the temperature information collected under the preset charging condition is within 27.5-28.3 ℃, the charging process is normal, and if the temperature information collected is not within 27.5-28.3 ℃, for example, is 29 ℃, the charging process is abnormal.
In this embodiment, the charging parameters may be detected based on the charging frequency, and then whether an abnormality exists in the charging process is determined, so that the occurrence of a situation of erroneous determination of abnormality detection due to aging of the battery after frequent charging of the battery, increase of internal resistance of the battery, and reduction of reversible capacity can be avoided, and the accuracy of abnormality detection can be improved.
As shown in fig. 5, in one embodiment, the charging control method includes steps 502 to 508.
And step 504, detecting whether the electronic equipment is abnormal in the charging process according to the charging parameters.
In step 506, if there is an abnormality, the electronic device is controlled to be powered off.
In step 508, if the charging voltage sent by the charging device is received, the charging circuit is controlled to charge the battery unit of the electronic device.
When the earphone is in a power-off state, the detection module of the earphone can still detect the charging voltage received by the earphone charging interface, and the charging voltage can be understood as the charging voltage sent by the charging box and used for charging the earphone. When the detection module of the earphone detects the charging voltage sent by the charging box, the circuit module of the earphone in the power-off state can be controlled to be powered on so as to enable the circuit module to be in the working state. For example, when the detection module detects the charging voltage sent by the charging box, the control module in the power-off state may be awakened, and the control module of the headset controls the charging circuit of the headset to charge the battery unit.
In the charging control method in this embodiment, when the charging circuit of the earphone stops charging the battery unit, whether the wake-up instruction sent by the charging box is received within a preset time period may be further detected, and the earphone is controlled to be powered off under the condition that the wake-up instruction is not received. Meanwhile, the earphone can be controlled to be started to be in a working state under the condition that the earphone is in a power-off state, the charging circuit of the earphone is controlled to charge the battery unit, automatic starting and power-off control of the earphone is achieved, meanwhile, automatic switching of starting and powering-on and powering-off of the earphone can be achieved, the operation process is simplified, and the user experience is improved.
It should be understood that although the various steps in the flow charts of fig. 2-5 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps of fig. 2-5 may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least a portion of the sub-steps or stages of other steps.
Fig. 6 is a block diagram of a charging control apparatus according to an embodiment. As shown in fig. 6, the charging control apparatus includes a battery cell 110, a charging interface 120, a charging circuit 130, a detection module 140, and a control module 150.
The battery unit 110 is a rechargeable battery, and may be, but is not limited to, a lithium ion battery. The battery unit 110 may include a single battery cell, or may include a plurality of battery cells connected in series or in parallel. When the battery unit 110 includes a plurality of battery cells connected in series, the voltage of the battery unit 110 is the sum of the voltages of the battery cells. In one embodiment, battery unit 110 includes two cells connected in series. It is understood that the structure, voltage rating, etc. of the selected battery cells 110 may vary from one electronic device 10 to another.
The charging interface 120 is configured to connect with the charging device 20, and is configured to receive a charging signal transmitted by the charging device 20 and to receive communication data transmitted by the charging device 20. When the charging control device is applied to the earphone, the charging device corresponding to the charging control device is the charging box 20. Specifically, the charging interface 120 may include a first charging contact 121 and a second charging contact 122. The polarities of the first charging contact 121 and the second charging contact 122 are opposite, for example, the first charging contact 121 is a positive contact, the second charging contact 122 is a negative contact, or the first charging contact 121 is a negative contact and the second charging contact 122 is a positive contact. The charging interface 210 of the charging box 20 includes a third charging contact 211 and a fourth charging contact 212.
When the third charging contact 211 is in contact with the first charging contact 121 and the fourth charging contact 212 is in contact with the second charging contact 122, a function of charging the earphone through the charging box may be implemented, or a function of transmitting data between the earphone and the charging box may be implemented. Wherein, can be used for transmitting data such as reset instruction, awaken up instruction, electric quantity information, temperature information, charge state indicating information between earphone and the box that charges.
And the charging circuit 130 is connected with the charging interface 120 and is used for receiving the charging signal and processing the charging signal to output a charging signal suitable for charging the earphone. The charging circuit 130 is also connected to the first charging contact 121, and is configured to receive a charging signal sent by the charging box, and perform voltage boosting or voltage dropping processing on the received charging signal to output a charging voltage suitable for charging the battery unit 110 of the earphone.
The detecting module 140 is connected to the charging interface 120, and is configured to detect a charging parameter during a charging process. The charging parameter may include at least one of a charging current, a charging voltage, and a charging temperature. If the charging parameter includes a charging current and a charging voltage, the corresponding detecting module 140 may use a shunt circuit/voltage divider circuit formed by discrete components such as a resistor and/or a capacitor to detect the charging current/charging voltage. If the charging parameter includes the charging temperature, the corresponding detection module 140 may adopt the temperature detection module 140 composed of a temperature sensitive device, etc. to detect the charging parameter.
The control module 150 is respectively connected to the charging circuit 130 and the detection module 140, and is configured to detect whether there is an abnormality in the charging process of the electronic device 10 according to the charging parameter, and if there is an abnormality, control the charging control apparatus to shut down. Specifically, the control module 150 may be implemented by a dedicated wireless earphone control chip, such as a bluetooth chip, or may be implemented by a microprocessor such as an independent single chip, a DSP, and an FPGA, and in this embodiment, the specific type of the control module 150 is not limited.
When the charging parameter is a charging voltage, a detection pin for detecting a voltage signal may be further disposed on the chip of the control module 150, so as to detect the received charging voltage.
The control module 150 may compare the charging parameter detected by the detection module 140 with a preset range corresponding to the charging parameter stored in the control module 150, so as to determine whether the charging process of the headset is abnormal. When the control module 150 determines that there is an abnormality in the charging process, the earphone can be controlled to be powered off. For example, the charging circuit 130 may be controlled to stop charging the battery unit 110, and after the charging circuit 130 stops charging the battery unit 110, the control module 150 may be further controlled to be in a shutdown state, where the shutdown state of the control module 150 may be understood as a shutdown state supporting a soft reset by the low power consumption wake-up function.
The charging control device comprises a battery unit 110, a charging interface 120, a charging circuit 130, a detection module 140 and a control module 150, wherein the control module 150 can judge whether the charging process of the battery unit 110 is abnormal according to the charging parameters detected by the detection module 140, and controls the charging control device to shut down if the charging process of the battery unit 110 is abnormal, based on the device, once the charging process of the battery unit 110 is abnormal, the shutdown operation can be directly executed without receiving a shutdown instruction sent by a charging box, the control module 150 controls each circuit module in the charging control device to be in a shutdown state, so that the charging control device is in the shutdown state, the situation that the charging control device cannot be charged but is always in a standby state due to abnormal conditions such as poor contact and abnormal charging equipment 20 can be avoided, the consumption of electric quantity can be avoided, and the electric quantity of the charging control device can be saved, the endurance time of the electronic equipment is improved.
Fig. 7 is a block diagram showing a configuration of a charge control device according to another embodiment. As shown in fig. 7, in one embodiment, the charging control device further includes a communication module 160. The communication module 160 is connected to the charging interface 120 and the control module 150, and is configured to transmit communication data received by the charging interface 120, so as to transmit the communication data to the control module 150. The communication module 160 can be directly connected to the first charging contact 121, and is configured to implement data transmission functions, such as data transmission and reception, between the control module 150 of the headset and the charging box based on the communication module 160 when the third charging contact 211 is in contact with the first charging contact 121 and the fourth charging contact 212 is in contact with the second charging contact 122. Illustratively, the communication module 160 may include a data transmission line, wherein the data transmission line may be a single line, or may include a dual line, such as an I2C data bus. Wherein the communication data at least comprises a wake-up instruction. For example, the wake-up command may be transmitted in the form of a predetermined code string.
The control module 150 is further configured to control the charging circuit 130 to stop charging the battery unit 110 when there is an abnormality, detect whether the communication module 160 receives a wake-up instruction sent by the charging box within a preset time period, and control the charging control apparatus to shut down if the wake-up instruction is not received. Specifically, the preset time period may be set to a millisecond order, a second order, such as 100 milliseconds, 200 milliseconds, 1 second, and the like, and in the embodiment of the present application, the specific duration of the preset time period is not further limited, and is not limited to the above illustration.
When the charging circuit 130 stops charging the battery unit 110 and the communication module 160 does not receive the wake-up command sent by the charging box within the preset time period, it indicates that the abnormality of the charging process is true, that is, the abnormality is valid, and at this time, the control module 150 may be controlled to be in the power-off state.
In one embodiment, the control module 150 is further configured to control the charging circuit 130 to continue charging the battery unit 110 when the communication module 160 receives the wake-up command.
The charging control apparatus in this embodiment can control the charging circuit 130 to continue charging the battery unit 110 based on the wake-up command sent by the charging box even when the charging circuit 130 stops charging the battery unit 110 of the earphone, so as to provide the flexibility of charging the earphone, thereby avoiding the earphone from being erroneously determined due to an abnormality during the charging process.
Fig. 8 is a block diagram showing a configuration of a charge control device according to still another embodiment. As shown in fig. 8, in one embodiment, the charging control apparatus further includes a switching circuit 170. The switching circuit 170 is respectively connected to the charging interface 120, the charging circuit 130, and the control module 150, and is configured to receive a control signal sent by the control module 150, and selectively turn on or off a charging path between the charging interface 120 and the charging circuit 130 according to the control signal. Specifically, when the battery unit 110 needs to be charged, the switching circuit 170 may turn on the charging path according to the received control signal, so as to receive the charging signal sent by the charging device 20 to charge the earphone; when communication with the charging device 20 is required, the switching circuit 170 may disconnect the charging path according to the received control signal, and further turn on the communication path between the communication module 160 and the charging interface 120, so as to implement data transmission with the charging device 20, so that the charging control apparatus switches from the charging state to the communication state.
Specifically, when determining that there is an abnormality, the control module 150 may send a control signal to control the switching circuit 170 to disconnect the charging path and to connect the communication path between the communication module 160 and the charging interface 120, so that the communication module 160 communicates with the charging device 20, and detects whether the communication module 160 receives a wake-up command within a preset time period, and if not, controls the charging control apparatus to shut down. If the wake-up command is received within the predetermined time period, the switching circuit 170 is further controlled to disconnect the communication path and turn on the charging path between the charging circuit 130 and the charging interface 120, so as to continue charging the battery unit 110.
The switching circuit 170 in this embodiment may selectively turn on or off the charging path according to the received control signal, so as to achieve automatic switching between the charging state and the communication state of the earphone, and make the charging state and the communication state independent from each other and not interfering with each other.
As shown in fig. 8, in one embodiment, the switching circuit 170 includes a first switching tube Q1 and a second switching tube Q2. A control electrode of the first switch tube Q1 is connected to the control module 150 and the charging interface 120, respectively, and a first electrode of the first switch tube Q1 is grounded; the control electrode of the second switch Q2 is connected to the second electrode of the first switch Q1, the first electrode of the second switch Q2 is connected to the charging interface 120, and the second electrode of the second switch is connected to the charging circuit 130.
In one embodiment, the first switch transistor Q1 is a triode, and the second switch transistor Q2 is a Metal Oxide Semiconductor (MOS) transistor. The base electrode of the triode is the control electrode of the second switch tube Q2, the emitter electrode of the triode is the first electrode of the second switch tube Q2, and the collector electrode of the triode is the second electrode of the second switch tube Q2; the gate of the MOS transistor is the control electrode of the first switch transistor Q1, the source of the MOS transistor is the first electrode of the first switch transistor Q1, and the drain of the MOS transistor is the second electrode of the first switch transistor Q1. That is, the base of the triode is connected to the control module 150 and the charging interface 120, respectively, and the emitter of the triode is grounded; the grid electrode of the MOS tube is connected with the collector electrode of the triode, the source electrode of the MOS tube is connected with the charging interface 120, and the drain electrode of the MOS tube is connected with the charging circuit 130130.
For example, the principle of the switching circuit 170 will be described by taking the first switching transistor Q1 as an NPN transistor and the second switching transistor Q2 as a P-type enhancement MOS transistor.
The control signal sent by the control module 150 is applied to the NPN transistor. When the control signal is a high-level signal or a high-impedance state, the NPN transistor is turned on as long as a voltage signal (e.g., 5V) is present at the charging interface 120, and when the NPN transistor is turned on, the gate of the MOS transistor is at a high level, so that the MOS transistor can be turned on correspondingly, and the charging circuit 130 is communicated with the charging interface 120 to turn on the charging path. When the control signal is at a low level, the NPN type triode is turned off, the level of the gate of the MOS transistor is changed to a low level, so that the MOS transistor is turned off, and at this time, the charging path between the charging circuit 130 and the charging interface 120 is disconnected, so that the path circuit communicates with the charging device 20, and meanwhile, the influence of the filter capacitor on the charging path on the communication path can be effectively avoided, and further, the communication efficiency and reliability can be improved.
Alternatively, the first switch Q1 and the second switch Q2 may be other types of transistors, such as various types of transistors, fets, bjts, igbts, fets, etc. It should be noted that, in the embodiment of the present application, specific types of the first switch tube Q1 and the second switch tube Q2 are not further limited.
In one embodiment, the switching circuit 170 further includes a first resistor R1 and a second resistor R2. A first end of the first resistor R1 is connected to the charging interface 120, and a second end of the first resistor R1 is connected to a control electrode of the first switch transistor Q1; a first end of the second resistor R2 is connected with a second end of the first resistor R1, and a second end of the second resistor R2 is connected with the control module 150; the resistance value of the first resistor R1 is larger than that of the second resistor R2. That is, the first resistor R1 is disposed on the path between the charging interface 120 and the first switch Q1. When the headset is in a communication state, the charging interface 120 of the headset also has a voltage signal (e.g., 3V, 1.8V), and at this time, the control terminal of the control module 150 is at a low level, and by setting the resistance of the first resistor R1 to be greater than the resistance of the second resistor R2, the voltage division of the base of the first switch Q1 caused by the voltage on the charging interface 120 can be prevented, so that the first switch Q1 and the second switch Q2 are turned on.
By providing the first resistor R1 and the second resistor R2 in the switching circuit 170, the resistance of the first resistor R1 is larger than that of the second resistor R2, so that the earphone can be prevented from being forced to switch to the charging state when in the communication state, thereby affecting the communication between the earphone and the charging box 20, and stability of the communication state of the earphone is provided.
In one embodiment, the switching circuit 170 further includes a third resistor R3. A first end of the third resistor R3 is connected to the charging interface 120 and the first pole of the second switch transistor Q2, respectively, and a second end of the third resistor R3 is connected to the second end of the first switch transistor Q1 and the control pole of the second switch transistor Q2, respectively. That is, the third resistor R3 can be understood as a pull-up resistor of the second switch Q2 to clamp the indeterminate signal at a high level through a resistor, which also functions as a current limiter.
Referring to fig. 8, in one embodiment, the charging control device includes a charging interface 120, a communication module 160, a charging circuit 130, a switching circuit 170, and a filter capacitor C, wherein one end of the filter capacitor C is connected to the switching circuit 170 and the charging circuit 130, respectively, and the other end of the filter capacitor C is grounded. The filter capacitor C is used for filtering stray waves on the charging path.
In the embodiment of the present application, the filter capacitor C is disposed on the charging path between the charging circuit 130 and the charging interface 120, and when the switching circuit 170 disconnects the charging path to connect the communication module 160 and the direct communication path of the charging interface 120, the filter capacitor C on the charging path can be isolated from the communication path, that is, the filter capacitor C is isolated from the communication path, so as to avoid the influence of the filter capacitor C on the communication path, so as to improve the data transmission rate of the communication path, and thus, the communication between the charging control device and the charging device 20 becomes smooth.
In one embodiment, the charge control device further includes: and the frequency acquiring module acquires the charging frequency of the battery unit 110 in the current charging process. The control module 150 is connected to the frequency obtaining module, and configured to construct a preset range corresponding to the charging parameter according to the charging parameter and the charging frequency, and determine that an abnormality exists in the charging process if the charging parameter is outside the preset range corresponding to the charging parameter.
The division of the modules in the charging control device is only for illustration, and in other embodiments, the charging control device may be divided into different modules as needed to complete all or part of the functions of the charging control device.
For specific limitations of the charging control device, reference may be made to the above limitations of the charging control method, which are not described herein again. The respective modules in the charge control device described above may be implemented in whole or in part by software, hardware, and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
The embodiment of the application further provides an earphone, which comprises the charging control device in any one of the embodiments, once the charging process of the battery unit is abnormal, a shutdown instruction sent by the charging box does not need to be received, the control module can directly control each circuit module inside the charging control device to be in a shutdown state, and then the charging control device is in the shutdown state, so that the situation that the charging control device cannot be charged but is always in a standby state due to abnormal conditions such as poor contact and abnormal charging box can be avoided, the consumption of electric quantity can be avoided, and the electric quantity of the charging control device is saved.
Fig. 9 is a schematic diagram of an internal structure of an electronic device in one embodiment. As shown in fig. 9, the electronic device includes a processor and a memory connected by a system bus. Wherein, the processor is used for providing calculation and control capability and supporting the operation of the whole electronic equipment. The memory may include a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The computer program is executable by a processor to implement a charging control method provided in the following embodiments. The internal memory provides a cached execution environment for the operating system computer programs in the non-volatile storage medium. The electronic device may be any terminal device such as an earphone, a mobile phone, a tablet computer, a PDA (Personal Digital Assistant), a Point of Sales (POS), a vehicle-mounted computer, and a wearable device.
The embodiment of the application also provides a computer readable storage medium. One or more non-transitory computer-readable storage media containing computer-executable instructions that, when executed by one or more processors, cause the processors to perform the steps of the charging control method.
A computer program product containing instructions which, when run on a computer, cause the computer to perform a charging control method.
Any reference to memory, storage, database, or other medium used herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM), which acts as external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as static
RAM (SRAM), Dynamic RAM (DRAM), synchronous DRAM
(SDRAM), double data rate SDRAM (ddr SDRAM), enhanced SDRAM (esdram), synchronous link dram (Synchlink) dram (sldram), Rambus direct ram (rdram), direct memory bus dynamic ram (drdram), and memory bus dynamic ram (rdram).
The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (17)
1. A charging control method applied to electronic equipment is characterized by comprising the following steps:
detecting charging parameters of the electronic equipment in a charging process;
detecting whether the electronic equipment is abnormal in the charging process according to the charging parameters; and if the abnormality exists, executing shutdown operation.
2. The method of claim 1, wherein if there is an exception, before the step of performing shutdown operation, the method further comprises:
controlling a charging circuit of the electronic equipment to stop charging a battery unit of the electronic equipment, and detecting whether the electronic equipment receives a wake-up instruction sent by the charging equipment within a preset time period;
and if the awakening instruction is not received, executing shutdown operation.
3. The method according to claim 2, wherein the step of detecting whether the electronic device receives a wake-up instruction sent by a charging device within a preset time period further comprises:
and if the wake-up instruction is received, controlling the charging circuit to continuously charge the battery unit.
4. The method of claim 1, wherein the charging parameter comprises at least one of a charging voltage, a charging current, and a charging temperature; wherein, the detecting whether the electronic device is abnormal in the charging process according to the charging parameters comprises:
and if the charging parameters are out of the preset range of the corresponding charging parameters, determining that the charging process is abnormal.
5. The method of claim 4, wherein the charging parameter is the charging voltage, and if the charging voltage is lower than a preset voltage threshold, it is determined that there is an abnormality in the charging process.
6. The method of claim 4, wherein before the step of detecting whether the electronic device is abnormal during the charging process according to the charging parameter, the method further comprises:
acquiring the charging frequency accumulated by the electronic equipment;
and constructing a preset range corresponding to the charging parameter according to the charging parameter and the charging frequency.
7. The method according to claim 2 or 3, wherein after performing the shutdown operation, further comprising:
and if a charging signal sent by the charging equipment is received, controlling the charging circuit to charge the battery unit of the electronic equipment.
8. A charge control device, characterized by comprising:
the number of the battery cells is increased by the number of the battery cells,
the charging interface is used for being connected with charging equipment;
the charging circuit is respectively connected with the battery unit and the charging interface and used for receiving a charging signal and processing the charging signal to output a signal suitable for charging the battery unit;
the detection module is connected with the charging interface and used for detecting charging parameters in the charging process;
and the control module is respectively connected with the charging circuit and the detection module and is used for detecting whether the charging control device is abnormal in the charging process according to the charging parameters, and if the charging control device is abnormal, executing shutdown operation.
9. The charge control device according to claim 8, characterized by further comprising:
the communication module is connected with the charging interface and the control module and is used for transmitting communication data received by the charging interface, and the communication data at least comprises a wake-up instruction;
the control module is further configured to control the charging circuit to stop charging the battery unit when there is an abnormality, detect whether the communication module receives the wake-up instruction within a preset time period, and execute a shutdown operation if the wake-up instruction is not received.
10. The charging control device of claim 9, wherein the control module is further configured to control the charging circuit to continue charging the battery unit when the communication module receives the wake-up command.
11. The charge control device according to claim 9, characterized by further comprising:
and the switching circuit is respectively connected with the charging interface, the charging circuit and the control module, and is used for receiving the control signal sent by the control module and selectively switching on or off a charging path between the charging interface and the charging circuit according to the control signal.
12. The charge control device according to claim 11, wherein the switching circuit comprises:
the control electrode of the first switch tube is respectively connected with the control module and the charging interface, and the first electrode of the first switch tube is grounded;
and the control electrode of the second switch tube is connected with the second electrode of the first switch tube, the first electrode of the second switch tube is connected with the charging interface, and the second electrode of the second switch tube is connected with the charging circuit.
13. The charge control device according to claim 12, characterized by further comprising:
a first end of the first resistor is connected with the charging interface, and a second end of the first resistor is connected with a control electrode of the first switch tube;
a first end of the second resistor is connected with a second end of the first resistor, and a second end of the second resistor is connected with the control module; the resistance value of the first resistor is larger than that of the second resistor.
14. The charge control device according to claim 11, characterized by further comprising:
and one end of the filter capacitor is respectively connected with the switching circuit and the charging circuit, and the other end of the filter capacitor is grounded.
15. An earphone, comprising:
the charge control device according to any one of claims 8 to 14.
16. An electronic device comprising a memory and a processor, the memory having stored therein a computer program that, when executed by the processor, causes the processor to perform the steps of the charge control method according to any one of claims 1 to 7.
17. 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 according to any one of claims 1 to 7.
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| CN113179108A (en) * | 2021-04-09 | 2021-07-27 | Oppo广东移动通信有限公司 | Signal transmission method and device, electronic equipment and readable storage medium |
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