CN112448448B - Charging control method, device, earphone, electronic device and readable storage medium - Google Patents

Abstract

The present application provides a charging control method, device, earphones, electronic equipment and computer-readable storage media. The charging control method includes: detecting the charging parameters of the electronic equipment during the charging process; detecting the charging parameters of the electronic equipment according to the charging parameters. Whether there is an abnormality during the charging process; if there is an abnormality, perform a shutdown operation. Based on this method, once an abnormality occurs in the charging process of the electronic device, there is no need to receive a shutdown command sent by the charging box. The shutdown operation can be directly performed, and the electronic device controls the internal Each circuit module is in a shutdown state, which in turn puts the electronic device in a shutdown state, which can avoid the situation where the electronic device cannot be charged but is always on standby due to abnormal conditions such as poor contact or abnormal charging equipment, thus avoiding the consumption of power. , save the power of electronic devices.

Description

Charging control method, device, earphone, electronic device and readable storage medium

Technical field

The present application relates to charging control, and in particular, to a charging control method, device, earphones, electronic equipment and computer-readable storage media.

Background technique

With the development of charging control technology, an external charging device can be used to charge electronic devices (eg, True Wireless Stereo (TWS) earphones). Generally, the charging control of earphones is through the charging port of the charging box, such as POGO PIN, which outputs the voltage to the charging interface on the earphones, such as POGO PIN, to achieve charging control of the earphones. However, with the traditional method, the electronic device will always be turned on, which will consume the power of the electronic device and affect the battery life of the electronic device.

Contents of the invention

Embodiments of the present application provide a charging control method, device, earphones, electronic equipment and computer-readable storage media, which can save power.

A charging control method, applied to electronic equipment, including:

Detect the charging parameters of electronic equipment during the charging process;

Detect whether there is an abnormality in the charging process of the electronic device according to the charging parameters;

If there is an abnormality, perform a shutdown operation.

The above charging control method can detect the charging parameters of the electronic device during the charging process, detect whether there is an abnormality in the electronic device during the charging process according to the charging parameters, and perform a shutdown operation if there is an abnormality. Based on this method, once an abnormality occurs in the charging process of the electronic device, there is no need to receive a shutdown command sent by the charging box, and the shutdown operation can be directly performed. The electronic device controls each internal circuit module to be in a shutdown state, thereby placing the electronic device in a shutdown state. It can avoid the occurrence of electronic devices that cannot be charged but are always on standby due to abnormal conditions such as poor contact and abnormal charging equipment, thereby avoiding power consumption, saving power of electronic devices, and improving the battery life of electronic devices.

A charging control device including:

battery unit,

Charging interface, used to connect with charging equipment;

A charging circuit, respectively connected to the battery unit and the charging interface, is used to receive a charging signal, and process the charging signal to output a signal suitable for charging the battery unit;

A detection module, connected to the charging interface, used to detect charging parameters during the charging process;

A control module is connected to the charging circuit and the detection module respectively, and is used to detect whether there is an abnormality in the charging control device during the charging process according to the charging parameters, and if there is an abnormality, perform a shutdown operation.

A headset including:

Such as the above charging control device.

The above-mentioned charging control device and earphones include a battery unit, a charging interface, a charging circuit, a detection module and a control module. The control module can determine whether there is an abnormality in the charging process of the battery unit based on the charging parameters detected by the detection module. If there is an abnormality, control the charging. The control device shuts down. Based on this device, once the charging process of the battery unit is abnormal, there is no need to receive the shutdown command sent by the charging box. The shutdown operation can be directly performed. The control module controls each circuit module inside the charging control device to be in a shutdown state, and then Turning off the charging control device can avoid the situation where the charging control device cannot be charged but is always on standby due to abnormal conditions such as poor contact or abnormal charging box, thereby avoiding power consumption and saving the power of the charging control device. , improve the battery life of electronic devices.

An electronic device includes a memory and a processor. A computer program is stored in the memory. When the computer program is executed by the processor, it causes the processor to execute the steps of the above method.

A computer-readable storage medium has a computer program stored thereon, and when the computer program is executed by a processor, the steps of the above method are implemented.

The above-mentioned electronic device and computer-readable storage medium can detect the charging parameters of the electronic device during the charging process, detect whether there is an abnormality in the charging process of the electronic device according to the charging parameters, and perform a shutdown operation if there is an abnormality. Based on this method, once an abnormality occurs in the charging process of the electronic device, there is no need to receive a shutdown command sent by the charging box, and the shutdown operation can be directly performed. The electronic device controls each internal circuit module to be in a shutdown state, thereby placing the electronic device in a shutdown state. It can avoid the occurrence of electronic devices that cannot be charged but are always on standby due to abnormal conditions such as poor contact and abnormal charging equipment, thereby avoiding power consumption, saving power of electronic devices, and improving the battery life of electronic devices.

Description of the drawings

In order to explain the embodiments of the present application or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is an application environment diagram of the charging control method in one embodiment;

Figure 2 is a flow chart of a charging control method in one embodiment;

Figure 3 is a flow chart of a charging control method in another embodiment;

Figure 4 is a flow chart of a charging control method in yet another embodiment;

Figure 5 is a flow chart of a charging control method in yet another embodiment;

Figure 6 is a structural block diagram of a charging control device in one embodiment;

Figure 7 is a structural block diagram of a charging control device according to another embodiment;

Figure 8 is a structural block diagram of a charging control device according to another embodiment;

Figure 9 is a schematic diagram of the internal structure of an electronic device in an embodiment.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application and are not used to limit the present application.

It will be understood that the terms "first", "second", etc. used in this application 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 element. For example, without departing from the scope of the present application, the first switch transistor may be called a second switch transistor, and similarly, the second switch transistor may be called a first switch transistor. Both the first switch tube and the second switch tube are switch tubes, but they are not the same switch tube.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited. In the description of this application, "several" means at least one, such as one, two, etc., unless otherwise expressly and specifically limited.

Figure 1 is a schematic diagram of the application environment of the charging control method in one 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 a headset, a mobile phone, a tablet computer, a PDA (Personal Digital Assistant, personal digital assistant), a POS (Point of Sales, a sales terminal), a vehicle-mounted computer, a wearable device (bracelet, smart glasses, etc.), etc. . The charging device 20 can be a charging box, a charging stand, a power bank, etc.

Figure 2 is a flow chart of a charging control method in one embodiment. The charging control method in this embodiment is described by taking the electronic device (such as earphones) 10 running in Figure 1 as an example. As shown in Figure 2, the charging control method includes steps 202 to 206.

Step 202: Detect the charging parameters of the electronic device during the charging process.

In one embodiment, the earphone may include a charging interface, a detection module, and a charging circuit. Among them, the charging interface is used to connect with the charging box to receive charging parameters and communication data sent by the charging box. The charging circuit is connected to the charging interface and is used to receive charging parameters and process the charging parameters to output charging parameters suitable for charging the earphones. The detection module is connected to the charging interface and used to detect charging parameters sent by the charging box. The charging parameters may include at least one of charging current, charging voltage and charging temperature. If the charging parameters include charging current and charging voltage, the corresponding detection module can use a voltage dividing circuit composed of discrete components such as resistors and/or capacitors to detect the charging parameters. If the charging parameters include charging temperature, the corresponding detection module can use a temperature detection module composed of a temperature-sensitive device or the like to detect the charging parameters.

It should be noted that in the embodiment of the present application, the specific composition form of the detection module is not further limited, nor is it limited to the above examples.

Step 204: Detect whether there is any abnormality in the electronic device during the charging process according to the charging parameters.

The earphones can determine whether there are abnormalities during the charging process of the earphones based on the detected charging parameters. Whether there is an abnormality can be judged by whether the charging parameters detected by the earphones are outside the preset range corresponding to the charging parameters. For example, if the charging voltage and/or charging current received by the earphones are less than the charging voltage and/or charging current sent by the charging box, it is considered that there is an abnormality in the charging process of the earphones; for example, if the temperature signal is higher than the preset temperature threshold, it is considered that the charging process of the earphones is abnormal. There are exceptions, etc. Whether it is abnormal can also be judged by whether the earphones receive the charging parameters or communication data sent by the charging box. For example, when the earphone charging interface is separated from the charging port of the charging box, that is, when the earphones are physically disconnected from the charging box, the earphones are deemed to be abnormal. There are abnormalities in the charging process, etc.

Step 206: If there is an abnormality, perform a shutdown operation.

If there is an abnormality in the charging process of the headset, a shutdown operation is performed to control the headset to shut down. Among them, performing a shutdown operation can be understood as controlling other circuit modules of the earphones to shut down to stop working. For example, the charging circuit can be controlled to stop charging the battery unit, and after the charging circuit stops charging the battery unit, the control module that controls the earphones is shut down. state, that is, a shutdown state that supports soft reset by a low-power wake-up function.

The above charging control method can detect the charging parameters of the electronic device during the charging process, detect whether there is an abnormality in the electronic device during the charging process according to the charging parameters, and if there is an abnormality, control the electronic device to shut down. Based on this method, once an abnormality occurs in the charging process of the electronic device, there is no need to receive a shutdown command sent by the charging box, and the shutdown operation can be directly performed. The electronic device controls each internal circuit module to be in a shutdown state, thereby placing the electronic device in a shutdown state. It can avoid the occurrence of electronic devices that cannot be charged but are always on standby due to abnormal conditions such as poor contact and abnormal charging equipment, thereby avoiding power consumption, saving power of electronic devices, and improving the battery life of electronic devices.

FIG. 3 is a schematic flowchart of a charging control method in another embodiment. In one embodiment, the charging control method includes steps 302-306.

Step 302: Detect the charging parameters of the electronic device during the charging process.

Step 304: Detect whether there is an abnormality in the charging process of the electronic device according to the charging parameters.

Step 306: If there is an abnormality, control the charging circuit of the electronic device to stop charging the battery unit of the electronic device, and detect whether the electronic device receives a wake-up command sent by the charging box within a preset time period.

When there is an abnormality during the charging process of the earphones, the charging path between the charging circuit and the charging interface can be cut off to control the charging circuit to stop charging the battery unit of the earphones; the charging management chip in the charging circuit can also be controlled to shut down status to control the charging circuit to stop charging the battery unit of the headset, etc.

When the charging circuit stops charging the battery unit, the earphones can further detect whether a wake-up command sent by the charging box is received within a preset time period. The wake-up command is used to wake up the charging circuit so that the charging circuit continues to charge the battery unit. Specifically, the headset may also include a communication module connected to the charging interface, and the communication module may be used to transmit communication data. Based on this communication module, data transmission functions such as data sending and receiving between the earphones and the charging box can be realized. For example, when the charging circuit of the earphone stops charging the battery unit, the earphone can control the communication module to implement data transmission with the charging box so that the earphone is in a communication state. When the headset is in communication state, the headset can monitor in real time whether the communication data includes a wake-up command within a preset time period. For example, the wake-up instruction can be transmitted in the form of a preset encoding string.

Specifically, the preset time period can be set to the millisecond level or the second level, such as 0 milliseconds, 0 milliseconds, 1 second, etc. In the embodiment of this application, the specific duration of the preset time period is not further limited. It is not limited to the above examples.

Step 308: If no wake-up command is 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 command sent by the charging box within the preset time period, it indicates that the abnormality in the charging process is true, that is, the abnormality is valid. At this time, you can The control module that controls the headset is powered off.

According to the charging control method of this embodiment, when the charging circuit of the headset stops charging the battery unit, it can further detect whether a wake-up command sent by the charging box is received within a preset time period, and if the wake-up command is not received, Control the headset to turn off. By setting the preset time period, you can give the headset a buffer time period to avoid short-term charging interruptions and directly control the headset to turn off, which can improve the efficiency and flexibility of charging.

In one embodiment, the charging control method further includes step 310, if a wake-up instruction 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 within a preset time period, the communication module of the headset receives a wake-up command from the charging box, the headset can control the charging circuit to continue charging the battery unit of the headset according to the wake-up command. Specifically, if the charging path where the charging circuit is located is currently disconnected, the charging path between the charging circuit and the charging interface can be turned on at this time to control the charging circuit to continue charging the battery unit of the headset; The charging management chip of the circuit is in a shutdown state. At this time, the charging management chip can be woken up and put into working state to control the charging circuit to continue charging the battery unit of the headset.

The charging control method in this embodiment can control the charging circuit to continue charging the battery unit based on the wake-up command sent by the charging box even when the charging circuit stops charging the battery unit of the earphone, which can provide flexibility in charging the earphone. to avoid the headset shutting down due to abnormal misjudgments during charging.

In one embodiment, detecting whether there is an abnormality in the charging process of the electronic device according to the charging parameters specifically includes determining whether there is an abnormality in the charging process if the charging parameter is outside a preset range of the corresponding charging parameter. Specifically, the charging parameters include at least one of charging voltage, charging current, and charging temperature. If the charging parameter only includes one signal, for example, charging voltage, charging current or charging temperature, the preset ranges corresponding to different charging parameters will be different. If the value of the charging parameter is within the corresponding preset range, the charging process of the headset can be determined to be normal (that is, there is no abnormality). If the value of the charging parameter is outside the preset range, the charging process of the headset can be determined to be normal. There is an abnormality in the charging process of the headset.

In one embodiment, the charging parameter is charging voltage. If the charging voltage is lower than the preset voltage threshold, it is determined that there is an abnormality in the charging process. The preset voltage threshold can be understood as the standard charging voltage output by the charging box. For example, the preset voltage threshold is 5V. If the charging voltage detected by the detection module of the earphone is less than 5V, it is determined that there is an abnormality in the charging process. In addition, if the detection module of the earphone does not detect the charging voltage, the charging voltage can be understood as 0V.

Optionally, when the charging parameter is the charging current, it can also be detected whether the charging current is within the preset current range. If it is, the charging process of the headset is normal; otherwise, the charging process of the headset is abnormal.

In one embodiment, the charging parameter is a temperature signal. If the temperature signal is within a preset temperature range, the charging process of the earphones is normal; otherwise, the charging process of the earphones is abnormal. For example, the preset temperature range can be set between -40 degrees Celsius. If the value of the temperature signal is 50 degrees Celsius, it is determined that there is an abnormality in the charging process of the headset.

It should be noted that when the charging parameters include at least two signals, the boundary values of each preset range can be adjusted according to the correlation between the respective signals.

As shown in Figure 4, in one embodiment, the charging control method further includes:

Step 402, detect the charging parameters of the electronic device during the charging process;

Step 404: Obtain the accumulated charging frequency of the electronic device.

The earphones are built into the charging box. When receiving the charging parameters of the charging box for charging, the earphones can count the charging frequency of the battery unit (or called the number of charging times), and will cumulatively count the charging frequency, and calculate the charging frequency. for storage.

In one embodiment, during the process of cumulatively counting the charging frequency of the battery, the headset will also determine whether the current charging process meets the cumulative counting requirements. If the cumulative counting requirements are met, the cumulative counting will be performed. If not, the cumulative counting will be performed. If the cumulative counting requirements are met, the charging frequency of the current charging process will not be counted. For example, the cumulative count requirement can be understood as a complete charging process.

Step 406: Construct a preset range corresponding to the charging parameters according to the charging parameters and charging frequency.

In one embodiment, during the charging process of the earphones, charging parameters under preset charging conditions can be obtained. Wherein, the preset condition can be pre-configured in the headset. The preset condition can be a preset duration of constant voltage charging from a preset characteristic point, and the corresponding charging parameter is charging temperature or charging current. The preset condition may also be constant voltage charging from the first preset current to the second preset current, and the corresponding charging parameter is the charging temperature.

The preset range corresponds to the charging parameter, that is, each charging parameter is configured with a preset range. When the preset charging conditions are different, the preset ranges of charging parameters for the same charging frequency may be the same or different. That is, the mapping relationship between charging frequency, preset charging conditions, charging parameters, and preset range can be constructed correspondingly. Among them, the preset charging conditions and charging frequency jointly correspond to the preset range. When establishing the relationship between the four, the preset range = f (preset charging conditions, charging frequency, charging parameters). This relationship can be fixed in the form of a mapping table. The relationship can be system-provided, recommended, or customized by the user.

The electronic device can obtain the charging frequency of the current charging process and the charging parameters of the current charging process, and construct a preset range corresponding to the charging parameters based on the charging frequency and charging parameters. Among them, the charging frequency is different, and the detection standards used to detect charging parameters are also different. For example, when the charging frequency is 100 times and 200 times respectively, for the same charging parameter, due to different charging frequencies, the corresponding results of detecting whether the battery unit is abnormal may also be different.

Step 408: If the charging parameter is outside the preset range of the corresponding charging parameter, it is determined that there is an abnormality in the charging process.

Step 410: Perform shutdown operation.

In one embodiment, if the preset charging condition is to continue charging for a preset time from a preset characteristic point, the corresponding charging parameter is temperature information. The earphones can determine the preset range of charging parameters corresponding to the preset charging conditions and charging frequency based on the mapping relationship. For example, the corresponding temperature value after starting from a charging current of 1A and maintaining a charging voltage (constant voltage) of 5V for a preset time of 15 minutes can be used as the charging parameter. Based on this mapping relationship, the standard parameter range of the temperature information corresponding to the charging frequency of 100 times can be obtained to be 27.5-28.3°C. If the temperature information collected under the preset charging conditions is within 27.5-28.3℃, the charging process is normal. If the temperature information collected is not within 27.5-28.3℃, for example, 29℃, the charging process is abnormal. .

In this embodiment, the charging parameters can be detected based on the charging frequency, and then whether there is an abnormality in the charging process can be determined. This can avoid the battery aging, the internal resistance of the battery increasing, and the reversible capacity reducing resulting in incorrect abnormality detection after the battery is frequently charged multiple times. judgment occurs, which can improve the accuracy of anomaly detection.

As shown in FIG. 5 , in one embodiment, the charging control method includes steps 502 to 508 .

Step 502: Detect the charging parameters of the electronic device during the charging process.

Step 504: Detect whether there is an abnormality in the charging process of the electronic device according to the charging parameters.

Step 506: If there is an abnormality, control the electronic device to shut down.

Steps 502 to 506 correspond to step 2 to step 6 in the previous embodiment, and will not be described again here.

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 headset is turned off, the detection module of the headset can still detect the charging voltage received by the headset charging interface. This charging voltage can be understood as the charging voltage sent by the charging box to charge the headset. When the detection module of the earphone detects the charging voltage sent by the charging box, it can control the circuit module of the earphone that is in the off state to turn on so that it is in a working state. For example, when the detection module detects the charging voltage sent by the charging box, the control module in the shutdown state can be awakened, and the control module of the earphone controls the charging circuit of the earphone to charge the battery unit.

The charging control method in this embodiment, when the charging circuit of the headset stops charging the battery unit, can further detect whether a wake-up command sent by the charging box is received within a preset time period, and if the wake-up command is not received, By setting the preset time period, you can give the earphones a buffer time period to avoid short-term charging interruptions and directly control the earphones to shut down, which can improve charging efficiency and flexibility. At the same time, you can also control the headset to turn on when the headset is turned off, so that it is in a working state, and control the charging circuit of the headset to charge the battery unit, thereby realizing automatic start-up and shut-down control of the headset. The independent switching of the headset on and off simplifies the operation process and improves the user experience.

It should be understood that although the various steps in the flowcharts of Figures 2-5 are shown in sequence as indicated by arrows, these steps are not necessarily executed in the order indicated by arrows. Unless explicitly stated in this article, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in Figures 2-5 may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but may be executed at different times. The order of execution is not necessarily sequential, but may be performed in turn or alternately with other steps or sub-steps of other steps or at least part of the stages.

Figure 6 is a structural block diagram of a charging control device according to an embodiment. As shown in FIG. 6 , the charging control device includes a battery unit 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, which may be, but is not limited to, a lithium-ion battery. The battery unit 110 may include a single cell or multiple cells connected in series or parallel. When the battery unit 110 includes multiple cells connected in series, the voltage of the battery unit 110 is the sum of the voltages of each cell. In one embodiment, the battery unit 110 includes two cells connected in series. It can be understood that different electronic devices 10 may have different structures and rated voltages of the battery units 110 selected.

The charging interface 120 is used for connecting with the charging device 20 , for receiving charging signals sent by the charging device 20 and for receiving communication data sent by the charging device 20 . When the charging control device is applied to headphones, its corresponding charging 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 first charging contact 121 and the second charging contact 122 have opposite polarities. For example, the first charging contact 121 is a positive contact, and the second charging contact 122 is a negative contact, or the first charging contact 121 is a negative contact, or the first charging contact 122 is a negative contact. The 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, the function of charging the earphones through the charging box can be realized, or, To realize data transmission functions such as data sending and receiving between the earphones and the charging box. Among them, the headset and the charging box can be used to transmit data such as reset instructions, wake-up instructions, power information, temperature information, charging status indication information, etc.

The charging circuit 130 is connected to 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 earphones. The charging circuit 130 may also be connected to the first charging contact 121 for receiving the charging signal sent by the charging box, and performing voltage boosting or voltage reducing processing on the received charging signal to output a voltage suitable for earphones. The charging voltage at which battery unit 110 is charged.

The detection module 140 is connected to the charging interface 120 and is used to detect charging parameters during the charging process. The charging parameters may include at least one of charging current, charging voltage and charging temperature. If the charging parameters include charging current and charging voltage, the corresponding detection module 140 can use a shunt circuit/voltage dividing circuit composed of discrete components such as resistors and/or capacitors to detect the charging current/charging voltage. If the charging parameter includes charging temperature, the corresponding detection module 140 may use a temperature detection module 140 composed of a temperature sensitive device or the like to detect the charging parameter.

The control module 150 is connected to the charging circuit 130 and the detection module 140 respectively, and is used to detect whether there is an abnormality in the charging process of the electronic device 10 according to the charging parameters, and if there is an abnormality, control the charging control device to shut down. Specifically, the control module 150 can be implemented using a dedicated wireless headset control chip, such as a Bluetooth chip, or can be implemented using an independent microprocessor such as a microcontroller, DSP, and FPGA. In the embodiment of the present application, the specific details of the control module 150 are There are no restrictions on types.

When the charging parameter is the charging voltage, the chip of the control module 150 may also be provided with a detection pin for detecting a voltage signal to detect the received charging voltage.

The control module 150 can compare the charging parameters detected by the detection module 140 with a preset range corresponding to the charging parameters internally stored in the control module 150 to determine whether there is an abnormality in the charging process of the earphones. When the control module 150 determines that there is an abnormality in the charging process, the headset can be controlled to be turned off. Among them, controlling the headset to shut down can be understood as controlling other circuit modules of the headset to shut down to stop working. For example, the charging circuit 130 can be controlled to stop charging the battery unit 110, and after the charging circuit 130 stops charging the battery unit 110, the module can be further controlled. 150 is in a shutdown state, where the shutdown state of the control module 150 can be understood as a shutdown state that supports soft reset by a low-power wake-up function.

The above charging control device includes a battery unit 110, a charging interface 120, a charging circuit 130, a detection module 140 and a control module 150. The control module 150 can determine whether there is an abnormality in the charging process of the battery unit 110 based on the charging parameters detected by the detection module 140. If If there is an abnormality, the charging control device is controlled to shut down. Based on this device, once an abnormality occurs in the charging process of the battery unit 110, there is no need to receive a shutdown command sent by the charging box, and the shutdown operation can be directly performed. The control module 150 controls the internal charging control device. Each circuit module is in a shutdown state, thereby causing the charging control device to be in a shutdown state, which can avoid the situation that the charging control device cannot be charged but is always on standby due to abnormal conditions such as poor contact or abnormality of the charging equipment 20, thereby avoiding the occurrence of power shortage. consumption, save the power of the charging control device, and improve the battery life of electronic equipment.

FIG. 7 is a structural block diagram of a charging 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 used to transmit communication data received by the charging interface 120 to transmit the communication data to the control module 150 . Wherein, the communication module 160 can be directly connected to the first charging contact 121 for contact and conduction between the third charging contact 211 and the first charging contact 121, and the fourth charging contact 212 and the second charging contact 122. When the contact is conducted, data transmission functions such as data transmission and reception between the control module 150 of the headset and the charging box are implemented based on the communication module 160 . For example, the communication module 160 may include a data transmission line, where the data transmission line may be a single line or a double line, such as an I2C data bus, etc. The communication data at least includes a wake-up instruction. For example, the wake-up instruction can be transmitted in the form of a preset encoding string.

The control module 150 is also used to control the charging circuit 130 to stop charging the battery unit 110 when there is an abnormality, and to detect whether the communication module 160 receives a wake-up command sent by the charging box within a preset time period. If the wake-up command is not received, Then control the charging control device to shut down. Specifically, the preset time period can be set to the order of milliseconds or seconds, such as 100 milliseconds, 200 milliseconds, 1 second, etc. In the embodiment of the present application, the specific duration of the preset time period is not further limited. It is not limited to the above examples.

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 in the charging process is true, that is, the abnormality is valid. , the control module 150 can be controlled to be in a shutdown state.

In one embodiment, the control module 150 is also configured to control the charging circuit 130 to continue charging the battery unit 110 when the communication module 160 receives the wake-up instruction.

The charging control device in this embodiment, even when the charging circuit 130 stops charging the battery unit 110 of the headset, can control the charging circuit 130 to continue charging the battery unit 110 based on the wake-up command sent by the charging box, which can provide the The flexibility of earphone charging to avoid earphones caused by abnormal misjudgments during the charging process.

Figure 8 is a structural block diagram of a charging control device according to another embodiment. As shown in FIG. 8 , in one embodiment, the charging control device further includes a switching circuit 170 . The switching circuit 170 is connected to the charging interface 120, the charging circuit 130, and the control module 150 respectively, and is used to receive the control signal sent by the control module 150, and selectively connect or disconnect the charging interface 120 and the charging circuit 130 according to the control signal. charging path. Specifically, when the battery unit 110 needs to be charged, the switching circuit 170 can conduct the charging path according to the received control signal to receive the charging signal sent by the charging device 20 to charge the headset; when communication with the charging device 20 is required, The switching circuit 170 can disconnect the charging path according to the received control signal, and then open the communication path between the communication module 160 and the charging interface 120 to realize data transmission with the charging device 20, so that the charging control device Switch from charging state to communication state.

Specifically, when the control module 150 determines that there is an abnormality, it can send a control signal to control the switching circuit 170 to disconnect the charging path and open the communication path between the communication module 160 and the charging interface 120, so that the communication The 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. If the wake-up command is not received, the charging control device is controlled to shut down. If the wake-up command is received within a preset time period, the switching circuit 170 is further controlled to disconnect the communication path and open the charging path between the charging circuit 130 and the charging interface 120 to continue charging the battery unit 110 .

The switching circuit 170 in this embodiment can selectively turn on or off the charging path according to the received control signal, thereby realizing automatic switching between the charging state and the communication state of the headset, making the charging state and the communication state independent of each other. interference.

As shown in FIG. 8 , in one embodiment, the switching circuit 170 includes a first switching transistor Q1 and a second switching transistor Q2. Among them, the control electrode of the first switch Q1 is connected to the control module 150 and the charging interface 120 respectively. The first electrode of the first switch Q1 is grounded; the control electrode of the second switch Q2 is connected to the second electrode of the first switch Q1. connection, the first pole of the second switch tube Q2 is connected to the charging interface 120, and the second pole of the second switch tube Q2 is connected to the charging circuit 130.

In one embodiment, the first switching tube Q1 is a triode, and the second switching tube Q2 is a MOS tube (MetalOxide Semiconductor, metal oxide semiconductor field effect transistor). Among them, the base of the triode is the control electrode of the second switching tube Q2, the emitter of the triode is the first pole of the second switching tube Q2, and the collector of the triode is the second pole of the second switching tube Q2; the gate of the MOS tube The pole is the control pole of the first switching tube Q1, the source of the MOS tube is the first pole of the first switching tube Q1, and the drain of the MOS tube is the second pole of the first switching tube 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 gate of the MOS tube is connected to the collector of the triode, the source of the MOS tube is connected to the charging interface 120, and the The drain is connected to charging circuit 130130.

By way of example, the principle of the switching circuit 170 is explained by taking the first switching transistor Q1 as an NPN transistor and the second switching transistor Q2 as a P-type enhancement mode MOS transistor.

The control signal sent by the control module 150 will act on the NPN transistor. When the control signal is a high-level signal or a high-impedance state, as long as there is a voltage signal (for example, 5V) on the charging interface 120, the NPN transistor will be turned on. When the NPN transistor is turned on, When , the level of the gate of the MOS transistor is high level. Therefore, the MOS transistor can be turned on correspondingly, so that the charging circuit 130 is connected to the charging interface 120 to conduct the charging path. When the control signal is low level, the NPN transistor is turned off, and the level of the gate of the MOS tube becomes low and high, causing the MOS tube to be turned off. At this time, the charging circuit 130 and the charging interface 120 are disconnected. The charging path allows the path circuit to communicate with the charging device 20. At the same time, the impact of the filter capacitance on the charging path on the communication path can be effectively avoided, thereby improving communication efficiency and reliability.

Optionally, the first switching tube Q1 and the second switching tube Q2 can also be other types of transistors, such as various types of semiconductor transistors, field effect transistors, bipolar transistors, insulated gate bipolar transistors, field effect transistors. etc. It should be noted that in the embodiment of the present application, the specific types of the first switching transistor Q1 and the second switching transistor Q2 are not further limited.

In one embodiment, the switching circuit 170 further includes a first resistor R1 and a second resistor R2. The first end of the first resistor R1 is connected to the charging interface 120, the second end of the first resistor R1 is connected to the control electrode of the first switch Q1, and the first end of the second resistor R2 is connected to the third end of the first resistor R1. Two ends are connected, and the second end of the second resistor R2 is connected to the control module 150; wherein, the resistance of the first resistor R1 is greater than the resistance of the second resistor R2. That is, the first resistor R1 is provided on the path between the charging interface 120 and the first switch Q1. When the headset is in the communication state, its charging interface 120 will also have a voltage signal (for example, 3V, 1.8V). At this time, the level of the control terminal of the control module 150 is low level, and the resistance of the first resistor R1 is Setting the value to be greater than the resistance of the second resistor R2 can prevent the base of the first switch Q1 from dividing the voltage due to the voltage on the charging interface 120 to turn on the first switch Q1 and the second switch Q2.

By setting the first resistor R1 and the second resistor R2 in the switching circuit 170, the resistance of the first resistor R1 is greater than the resistance of the second resistor R2, so that the headset can be prevented from being forced to switch to the charging state when in the communication state. To affect the communication between the earphones and the charging box 20, the stability of the communication state of the earphones is provided.

In one embodiment, the switching circuit 170 further includes a third resistor R3. The first end of the third resistor R3 is connected to the charging interface 120 and the first pole of the second switch Q2 respectively. The second end of the third resistor R3 is connected to the second end of the first switch Q1 and the second switch Q2 respectively. The control electrode of tube Q2 is connected. That is, the third resistor R3 can be understood as a pull-up resistor of the second switch Q2 to clamp the uncertain signal at a high level through a resistor, and the resistor also serves as a current limiting function.

Referring to Figure 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 respectively. 130 connection, and the other end of the filter capacitor C is connected to ground. The filter capacitor C is used to filter out 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. When the switching circuit 170 disconnects the charging path and opens the direct communication path between the communication module 160 and the charging interface 120 , can isolate the influence of the filter capacitor C on the charging path on the communication path, that is, isolating the filter capacitor C from the communication path can avoid the influence of the filter capacitor C on the communication path, so as to improve the transmission of the communication path data rate, so that communication between the charging control device and the charging equipment 20 becomes smooth.

In one embodiment, the charging control device further includes: a frequency acquisition module that acquires the charging frequency of the battery unit 110 in the current charging process. The control module 150 is connected to the frequency acquisition module and is used to construct a preset range corresponding to the charging parameter according to the charging parameter and the charging frequency. If the charging parameter is outside the preset range of the corresponding charging parameter, it is determined that there is an abnormality in the charging process.

The division of each module in the above charging control device is only for illustration. In other embodiments, the charging control device can be divided into different modules as needed to complete all or part of the functions of the above charging control device.

For specific limitations on the charging control device, please refer to the above limitations on the charging control method, which will not be described again here. Each module in the above charging control device can be implemented in whole or in part by software, hardware and combinations thereof. Each of the above modules may be embedded in or independent of the processor of the computer device in the form of hardware, or may be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

An embodiment of the present application also provides an earphone. The earphone includes the charging control device in any of the above embodiments. Once an abnormality occurs in the charging process of the battery unit, it does not need to receive a shutdown command sent by the charging box and can be directly controlled by the control module. Each circuit module inside the charging control device is in a shutdown state, which in turn puts the charging control device in a shutdown state. This can avoid the situation where the charging control device cannot charge but is always on standby due to abnormal conditions such as poor contact or abnormal charging box. This can avoid power consumption and save the power of the charging control device.

Figure 9 is a schematic diagram of the internal structure of an electronic device in an embodiment. As shown in Figure 9, the electronic device includes a processor and a memory connected through a system bus. Among them, the processor is used to provide computing and control capabilities to support the operation of the entire electronic device. Memory may include non-volatile storage media and internal memory. Non-volatile storage media stores operating systems and computer programs. The computer program can be executed by the processor to implement a charging control method provided in the following embodiments. The internal memory provides a cached execution environment for operating system computer programs in non-volatile storage media. The electronic device can be any terminal device such as headphones, mobile phones, tablets, PDA (Personal Digital Assistant), POS (Point of Sales, sales terminal), vehicle-mounted computers, wearable devices, etc.

An embodiment of the present application also provides a computer-readable storage medium. One or more non-volatile 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 that, when run on a computer, causes the computer to execute a charging control method.

Any reference to memory, storage, database or other media used herein may include non-volatile and/or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM), which acts as external cache memory. By way of illustration, and not limitation, RAM is available in many forms, such as static

RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM

(SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM) , and memory bus dynamic RAM (RDRAM).

The above embodiments only express several implementation modes of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the patent scope of the present application. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all fall within the protection scope of the present application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims (12)

1. A charging control method, applied to earphones, characterized in that the earphones include a charging interface, a detection module and a charging circuit, wherein the charging interface is connected to a charging box for receiving charging information sent by the charging box. Parameters, the charging control method includes: Detect the charging parameters of the headset during charging; Detect whether there is an abnormality in the charging process of the earphone according to the charging parameters; if there is an abnormality, control the charging circuit of the earphone to stop charging the battery unit of the earphone, and detect that the earphone is charging within a preset time period. Whether the wake-up command sent by the charging box is received; If the wake-up command is not received, the headset performs a shutdown operation; If the wake-up command is received, the charging circuit is controlled to continue charging the battery unit. 2. The method according to claim 1, wherein the charging parameters include at least one of charging voltage, charging current and charging temperature; wherein the charging process of the earphone is detected based on the charging parameters. Are there any exceptions, including: If the charging parameter is outside the preset range of the corresponding charging parameter, it is determined that there is an abnormality in the charging process. 3. The method according to claim 2, 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. 4. The method according to claim 2, characterized in that before the step of detecting whether there is an abnormality in the charging process of the headset according to the charging parameters, it further includes: Obtain the accumulated charging frequency of the headset; A preset range corresponding to the charging parameter is constructed according to the charging parameter and the charging frequency. 5. The method according to claim 1, characterized in that after performing the shutdown operation, it further includes: If the charging signal sent by the charging box is received, the charging circuit is controlled to charge the battery unit of the earphone. 6. A headset, characterized in that it includes: battery unit, A charging interface, used to connect with the charging box and receive charging parameters sent by the charging box; A charging circuit, respectively connected to the battery unit and the charging interface, is used to receive a charging signal, and process the charging signal to output a signal suitable for charging the battery unit; A detection module, connected to the charging interface, used to detect charging parameters during the charging process; A communication module, connected to the charging interface and the control module, used to transmit communication data received by the charging interface, where the communication data at least includes a wake-up instruction; A control module, respectively connected to the charging circuit and the detection module, is used to detect whether there is an abnormality in the charging process of the earphone according to the charging parameters, and if there is an abnormality, control the charging circuit to stop charging the battery unit. , and detect whether the communication module receives the wake-up command within the preset time period. If the wake-up command is not received, the headset performs a shutdown operation; if the wake-up command is received, the charging is controlled. The circuit continues to charge the battery cells. 7. The earphone according to claim 6, characterized in that the earphone further includes: A switching circuit, respectively connected to the charging interface, charging circuit, and control module, is used to receive the control signal sent by the control module, and selectively connect or disconnect the charging interface and the charging module according to the control signal. Charging path between circuits. 8. The earphone according to claim 7, characterized in that the switching circuit includes: A first switch tube, the control pole of the first switch tube is connected to the control module and the charging interface respectively, and the first pole of the first switch tube is grounded; A second switch tube, the control pole of the second switch tube is connected to the second pole of the first switch tube, the first pole of the second switch tube is connected to the charging interface, the second switch tube The second pole is connected to the charging circuit. 9. The earphone according to claim 8, characterized in that the earphone further includes: A first resistor, the first end of the first resistor is connected to the charging interface, and the second end of the first resistor is connected to the control electrode of the first switch tube; a second resistor, the first end of the second resistor is connected to the second end of the first resistor, and the second end of the second resistor is connected to the control module; wherein, the resistance of the first resistor The value is greater than the resistance of the second resistor. 10. The earphone according to claim 7, characterized in that the earphone further includes: Filter capacitor, one end of the filter capacitor is connected to the switching circuit and the charging circuit respectively, and the other end of the filter capacitor is grounded. 11. An electronic device, including a memory and a processor. A computer program is stored in the memory. When the computer program is executed by the processor, it causes the processor to execute any one of claims 1 to 5. The steps of the charging control method. 12. A computer-readable storage medium with a computer program stored thereon, characterized in that when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.