Device charging method and system

Abstract

Embodiments of the present application relate to a device charging method and a system. The method comprises: acquiring charging status information of a charged device; on the basis of the charging status information, determining a first power transmission object matched with the charged device; and broadcasting the first power transmission object to the charged device, so that the charged device is charged in a charging manner matched with first power. In this way, by means of broadcasting to the charged device the power transmission object matched with the charging status of the charged device, the present application can control the charged device to be charged in the charging manner matched with the first power of the power transmission object. Thus, the matched power transmission object of which the power is the charging power supported by the charged device can be promptly broadcasted by means of the charging status of the charged device, thereby reducing the occurrence of fake charging of the charged device.

Description

Device charging method and system

[0001] The present application claims priority to the Chinese patent application No. 202411008916.1, filed on July 25, 2024, and entitled "Device charging method and system", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of charging, in particular to a device charging method and system. BACKGROUND

[0003] In the related art, the development of power supply standards is constantly adapting to the needs of energy transformation and technological progress. For example, taking the PD (Power Delivery) protocol as an example, the PD protocol usually includes the following versions: PD1.0, PD2.0, PD3.0, PD3.1, etc. Due to the popularization of the PD3.1 protocol, the charging power has been expanded from 100W to 240W. Most of the charging devices (mobile phones, earphones, watches, game consoles, and notebook computers) currently available on the market are old PD3.0 protocols. Although the PD3.1 protocol can be downward compatible with PD3.0, in the case of multi-port charging products, there will be a power distribution function. In particular, when the charging device does not support PD3.1, and the power supply device supports PD3.1 and has a specification greater than 100W, the charging device may be fake. In the process of the fake charging device, although the charging device displays that it is charging (for example, there is a charging icon, indication, etc.), there is actually no or only a small amount of current entering the battery of the charging device, resulting in that the battery power does not increase or increases very slowly.

[0004] Therefore, how to reduce or even avoid the fake charging phenomenon of the charging device is a technical problem worthy of attention. SUMMARY

[0005] In view of this, in order to solve one or more of the above technical problems, the present application provides a device charging method and system.

[0006] In a first aspect, the present application provides a device charging method, the method comprising:

[0007] obtaining charging state information of a charging device, wherein the charging state information comprises at least one of an actual charging power and an actual charging current of the charging device;

[0008] determining a first power delivery object matched with the charging device based on the charging state information, wherein the first power delivery object comprises a first power for broadcasting to the charging device, and the first power represents a power supported by the charging device for charging;

[0009] broadcasting the first power transmission object to the charging device, so that the charging device charges by using a charging mode matched with the first power.

[0010] In a possible implementation, the charging status information includes an actual charging power of the charging device; and

[0011] The determining, based on the charging status information, of the first power transmission object matched with the charging device includes:

[0012] determining whether the actual charging power belongs to an extended power range, to obtain a first determination result;

[0013] The determining, based on the first determination result, of the first power transmission object matched with the charging device.

[0014] In a possible implementation, the charging status information further includes an actual charging current of the charging device; and

[0015] The determining, based on the first determination result, of the first power transmission object matched with the charging device includes:

[0016] In a case where the first determination result indicates that the actual charging power does not belong to the extended power range, determining whether the actual charging current belongs to a preset false charging current interval, to obtain a second determination result;

[0017] The determining, based on the second determination result, of the first power transmission object matched with the charging device.

[0018] In a possible implementation, the obtaining of the charging status information of the charging device includes:

[0019] obtaining the charging status information of the charging device in a case where a charging power provided to the charging device is a second power, wherein the second power belongs to the extended power range; and

[0020] The determining, based on the second determination result, of the first power transmission object matched with the charging device includes:

[0021] In a case where the second determination result indicates that the actual charging current of the charging device belongs to the preset false charging current interval, determining whether a false charging duration of the charging device is greater than or equal to a preset time threshold, wherein the false charging duration represents a duration during which the actual charging current of the charging device continuously belongs to the preset false charging current interval;

[0022] In a case where the fake charging duration is greater than or equal to the preset duration threshold, the first power included in the first power transmission object is determined as third power, and the third power belongs to a standard power range.

[0023] In a possible implementation, the broadcast order of the first power transmission object is represented as N; and

[0024] The first power transmission object matched with the charging device is determined based on the second determination result, and the first power transmission object includes:

[0025] In a case where the actual charging current does not belong to the preset fake charging current interval, it is determined whether the power included in the second power transmission object broadcast for the N-1 time belongs to the standard power range;

[0026] In a case where the power included in the second power transmission object belongs to the standard power range, the first power included in the first power transmission object is determined as the power included in the second power transmission object broadcast for the N-2 time.

[0027] In a case where the power included in the second power transmission object does not belong to the standard power range, the broadcast of the power transmission object is ended.

[0028] In a possible implementation, the method is applied to a power supply device, the power supply device is configured to supply power to the charging device, the power supply device supports a power delivery (PD) 3.1 charging protocol, and the power supply device includes a charging interface.

[0029] Before the charging state information of the charging device is obtained, the method further includes:

[0030] In a case where the charging interface is connected to the charging device, a third power transmission object is broadcast, and the third power transmission object includes fourth power, and the fourth power is an upper limit value of a standard power range of the PD 3.1 charging protocol.

[0031] In a possible implementation, in a case where the first power belongs to the standard power range, after the charging device charges in a charging mode matched with the first power, the method further includes:

[0032] In a case where the charging device charges in a charging mode matched with the first power, a second charging current of the charging device is detected.

[0033] In a case that the detected actual charging current does not belong to the preset false charging current interval, a charging power of a fifth power is provided to the charging device, wherein the fifth power belongs to an extended power range of the PD3.1 charging protocol.

[0034] In a second aspect, an embodiment of the present application provides a device charging system, the device charging system comprising a processing unit and a charging interface group, the processing unit being connected with each charging interface in the charging interface group; wherein:

[0035] The processing unit is configured to: acquire charging state information of a charging device connected with the charging interface in the charging interface group; determine a first power transmission object matched with the charging device based on the charging state information, wherein the first power transmission object comprises a first power for broadcasting to the charging device, and the first power represents a power supported by the charging device for charging; and broadcast the first power transmission object to the connected charging device, so that the charging device charges in a charging mode matched with the first power.

[0036] In a possible implementation, the processing unit comprises a protocol chip, and the protocol chip is connected with each charging interface in the charging interface group; wherein:

[0037] The protocol chip is configured to: acquire charging state information of a charging device connected with the charging interface in the charging interface group; determine a first power transmission object matched with the charging device based on the charging state information; and broadcast the first power transmission object to the connected charging device, so that the charging device charges in a charging mode matched with the first power.

[0038] In a possible implementation, the processing unit comprises a microcontroller, and the microcontroller is connected with each charging interface in the charging interface group; wherein:

[0039] The microcontroller is configured to: acquire charging state information of a charging device connected with the charging interface in the charging interface group; determine a first power transmission object matched with the charging device based on the charging state information; and broadcast the first power transmission object to the connected charging device, so that the charging device charges in a charging mode matched with the first power.

[0040] In a third aspect, an embodiment of the present application provides an electronic device, comprising:

[0041] a memory configured to store a computer program;

[0042] The processor is configured to execute a computer program stored in the memory, and the computer program, when executed, implements the method of any one of the embodiments of the device charging method of the first aspect of the application.

[0043] In a fourth aspect, the embodiments of the present application provide a computer readable storage medium, having stored thereon a computer program, the computer program, when executed by a processor, implements the method of any one of the device charging methods of the first aspect of the application.

[0044] In a fifth aspect, the embodiments of the present application provide a computer program product, the computer program product comprising computer readable code which, when run on a device, causes a processor in the device to implement the method of any one of the device charging methods of the first aspect of the application.

[0045] The device charging method provided by the embodiments of the present application can obtain the charging state information of the charging device, wherein the charging state information includes at least one of the actual charging power and the actual charging current of the charging device. Then, based on the charging state information, a first power transmission object matched with the charging device is determined, wherein the first power transmission object includes a first power for broadcasting to the charging device, and the first power represents the power supported by the charging device for charging. Then, the first power transmission object is broadcast to the charging device, so that the charging device uses a charging mode matched with the first power for charging. In this way, by broadcasting the power transmission object matched with the charging state of the charging device to the charging device, the charging device can be controlled to use the charging mode matched with the first power included in the power transmission object for charging. In this way, the power transmission object matched with the charging state of the charging device can be broadcast in time, and the power included in the power transmission object is the power supported by the charging device for charging. Thus, the false charging phenomenon of the charging device is reduced.

[0046] The device charging system provided by the embodiment comprises a processing unit and a charging interface group, the processing unit is connected with each charging interface in the charging interface group; wherein: the processing unit is used for: acquiring charging state information of a charging device connected with the charging interface in the charging interface group; determining a first power transmission object matched with the charging device based on the charging state information, wherein the first power transmission object comprises a first power broadcasted to the charging device, and the first power represents a power supported by the charging device for charging; and broadcasting the first power transmission object to the connected charging device, so that the charging device charges in a charging mode matched with the first power. In this way, the charging device can charge in a charging mode matched with the first power included in the power transmission object by broadcasting the power transmission object matched with the charging state of the charging device to the charging device, so that the power transmission object matched with the charging state of the charging device can be broadcasted in time, and the power included in the power transmission object is the power supported by the charging device for charging, thereby reducing the false charging phenomenon of the charging device. BRIEF DESCRIPTION OF DRAWINGS

[0047] The drawings incorporated in the specification and constituting a part of the specification illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the application.

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, those skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0049] One or more embodiments are exemplarily illustrated by pictures in the drawings corresponding to the embodiments, and the exemplarily illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified. The drawings do not constitute a proportional limitation.

[0050] Fig. 1 is a flow diagram of a device charging method provided by an embodiment of the present application;

[0051] Fig. 2 is a flow diagram of another device charging method provided by an embodiment of the present application;

[0052] Fig. 3 is a flow diagram of still another device charging method provided by an embodiment of the present application;

[0053] Fig. 4 is a structural diagram of a device charging system provided by an embodiment of the present application;

[0054] FIG. 5 is a structural schematic diagram of another device charging system according to an embodiment of the present application;

[0055] FIG. 6 is a structural schematic diagram of still another device charging system according to an embodiment of the present application;

[0056] FIG. 7 is a structural schematic diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0057] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be apparent that the described embodiments are only part of the embodiments of the present application and are not intended to limit the scope of the present application.

[0058] It should be understood by those skilled in the art that the terms "first", "second" and the like in the embodiments of the present application are only used to distinguish different steps, devices or modules, and do not represent any specific technical meaning, nor represent the logical order between them.

[0059] It should also be understood that in the present embodiment, "a plurality of" can mean two or more, and "at least one" can mean one, two or more.

[0060] It should also be understood that for any component, data or structure mentioned in the embodiments of the present application, it can be understood as one or more in general, without explicit limitation or in the context of the opposite indication.

[0061] In addition, the term "and / or" in the present application is only a description of the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B can mean that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects.

[0062] It should also be understood that the description of various embodiments of the present application focuses on the differences between the various embodiments, and the same or similar parts can be referred to each other, and for the sake of brevity, will not be repeated.

[0063] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way limiting of the application or its use.

[0064] Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail herein, but should be considered as part of the description if appropriate.

[0065] It should be noted that like reference numerals and letters refer to like items throughout the attached drawings, and once an item is defined in one drawing, further discussion of the same item in subsequent drawings is omitted.

[0066] It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict. In order to facilitate the understanding of the embodiments of the present application, the present application will be described in detail below with reference to the drawings and in combination with the embodiments. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0067] In order to solve the technical problem of how to reduce the false charging phenomenon of the charging device in the prior art, the present application provides a device charging method and system, which can reduce or even avoid the false charging phenomenon of the charging device.

[0068] FIG. 1 is a flowchart of a device charging method provided by an embodiment of the present application. The method can be applied to one or more electronic devices such as energy storage power supply and socket. In addition, the execution subject of the method can be hardware or software. When the execution subject is hardware, the execution subject can be one or more of the above-mentioned electronic devices. For example, a single electronic device can execute the method, or multiple electronic devices can cooperate with each other to execute the method. When the execution subject is software, the method can be implemented as multiple software or software modules, or as a single software or software module. No specific limitation is made herein.

[0069] As shown in FIG. 1, the method specifically includes:

[0070] Step 101, obtaining charging state information of a charging device, wherein the charging state information includes at least one of an actual charging power and an actual charging current of the charging device.

[0071] In the embodiment, the charging device can include but is not limited to computer, mobile phone, mobile power supply, etc.

[0072] The charging state information can represent the actual charging state of the charging device. The actual charging power can represent the actual charging power of the charging device. The actual charging current represents the actual charging current of the charging device.

[0073] Step 102, determining a first power transmission object matched with the charging device based on the charging state information, wherein the first power transmission object includes a first power for broadcasting to the charging device, and the first power represents a power supported by the charging device for charging.

[0074] In this embodiment, the first power transmission object can be a power delivery object (PDO) matched with the charging status information.

[0075] The power transmission object can refer to a power delivery object (PDO) in a power delivery (PD) protocol. The PDO is mainly used to describe the power output capability that a charger or a power supply device can provide, including different voltage and current combinations.

[0076] The first power can be the power included in the first power transmission object. The first power is broadcast to the charging device through the first power transmission object. After broadcasting the first power transmission object including the first power to the charging device, since the first power represents the power supported by the charging device for charging, the occurrence of false charging of the charging device can be reduced. For example, if the actual charging power and / or the actual charging current of the charging device is small (e.g., less than a preset threshold), it can generally indicate that the charging device supports a small power for charging, and thus the first power can be small, e.g., less than 100 W; if the actual charging power and / or the actual charging current of the charging device is large (e.g., greater than or equal to a preset threshold), it can generally indicate that the charging device supports a large power for charging, and thus the first power can be large, e.g., greater than 100 W.

[0077] Here, a preset correspondence table can be used to determine the first power transmission object matched with the charging device. The preset correspondence table can represent the correspondence between the charging status information and the first power transmission object (e.g., the first power in the first power transmission object).

[0078] As an example, if the charging status information indicates that the maximum charging power of the charging device is A, the first power included in the first power transmission object matched with the charging device can be determined to be A based on the charging status information. If the charging status information indicates that the maximum charging power of the charging device is B, the first power included in the first power transmission object matched with the charging device can be determined to be B based on the charging status information.

[0079] As another example, the following can also be used to implement the step 102:

[0080] First, it is determined whether the actual charging current of the charging device belongs to a preset false charging current interval, to obtain a second determination result.

[0081] The actual charging current can be the charging current of the charging device included in the charging status information.

[0082] The preset false charging current interval can be a preset false charging current interval. If the charging current of the charging device is within the interval, the charging device can currently have a false charging phenomenon. If the charging current of the charging device is not within the interval, the charging device currently does not have a false charging phenomenon. As an example, the preset false charging current interval can be 0-80 mA (milliampere)

[0083] The second determination result can indicate whether the actual charging current of the charging device belongs to the preset false charging current interval.

[0084] Subsequently, based on the second determination result, a first power transmission object matched with the charging device is determined.

[0085] As an example, if the second determination result indicates that the actual charging current of the charging device belongs to the preset false charging current interval, the first power included in the first power transmission object matched with the charging device can be determined to be power 1 based on the charging state information. If the second determination result indicates that the actual charging current of the charging device does not belong to the preset false charging current interval, the first power included in the first power transmission object matched with the charging device can be determined to be power 2 based on the charging state information.

[0086] In addition, other manners can also be used to implement the step 102, and details are described below, which are not described here.

[0087] In step 103, the first power transmission object is broadcast to the charging device, so that the charging device charges in a charging mode matched with the first power.

[0088] In this embodiment, during the charging process of the charging device, the execution subject of the method can broadcast available power configuration information (i.e., the first power configuration information) to the connected charging device, such as different voltage and current combinations, i.e., the first power. After the first power transmission object is broadcast to the charging device, the charging device can charge in a charging mode matched with the first power, which helps the charging device to select the most suitable charging parameters according to its own needs and charging capacity, so as to achieve efficient and safe charging.

[0089] In some optional implementation manners of this embodiment, the method is applied to a power supply device (such as a socket, a charger, etc.). The power supply device is used to supply power to the charging device. The power supply device supports the power delivery (PD) 3.1 charging protocol. The power supply device includes a charging interface. As an example, the power supply device can include at least two charging interfaces.

[0090] On this basis, before obtaining the charging state information of the charging device, and in the case that the charging interface accesses the charging device, a third power transfer object can be broadcasted.

[0091] The third power transfer object includes a fourth power, and the fourth power is an upper limit value of a standard power range of the PD3.1 charging protocol. For example, the fourth power can be 100 W.

[0092] The third power transfer object can be a power transfer object broadcasted before obtaining the charging state information of the charging device, and in the case that the charging interface accesses the charging device.

[0093] It can be understood that after the charging interface accesses the charging device, a power transfer object containing 100 W power can be broadcasted to the charging device first. In order to enable the charging device to determine the appropriate power according to its own battery state, current working mode, internal charging management strategy and other factors. For example, if the battery of the charging device is low and supports fast charging, a higher power level can be selected preferentially; if the battery of the charging device is already high or the device is in a low-power mode, a lower power level can be selected to protect the battery life. Then, the charging device can return a request indicating the specific power that the charging device hopes to obtain. This request is made based on the power in the broadcasted power transfer object.

[0094] In some application scenarios of the optional implementation, in the case that the first power belongs to the standard power range, after the charging device is charged in the charging mode matched with the first power, the following steps can be further performed:

[0095] Firstly, in the case that the charging device is charged in the charging mode matched with the first power, a second charging current of the charging device is detected.

[0096] The second charging current can be a charging current of the charging device in the case that the charging device is charged in the charging mode matched with the first power.

[0097] Secondly, in the case that the detected actual charging current does not belong to the preset false charging current interval, a fifth power is provided to the charging device as the charging power.

[0098] The fifth power belongs to an extended power range of the PD3.1 charging protocol.

[0099] The preset false charging current interval can be a preset false charging current interval. If the charging current of the charging device is within the interval, the charging device can currently have a false charging phenomenon. If the charging current of the charging device is not within the interval, the charging device currently does not have a false charging phenomenon. As an example, the preset false charging current interval can be 0-80 mA (milliampere).

[0100] The extended power range of the PD3.1 charging protocol is (100 W, 240 W].

[0101] As an example, the fifth power can be 120 W, 140 W, etc.

[0102] As an example, please refer to FIG. 3. In FIG. 3, after broadcasting the latest power PDO (i.e., the first power delivery object), the charging device can be charged in a charging mode matched with the PDO. Then, the second charging current of the charging device can be detected. In the illustration, after 10 s (seconds) after broadcasting the latest power PDO, it is first determined whether the charging device enters an EPR (Extended Power Range) mode. If the charging device does not enter the EPR mode, the second charging current of the charging device is determined. In the case that the detected actual charging current does not belong to the preset false charging current interval (less than 80 mA in the illustration), it is determined whether the power included in the PDO broadcast to the charging device last time belongs to the standard power range of the PD3.1 charging protocol (e.g., whether it is 99 W). If yes, the power included in the second power delivery object broadcast last time, i.e., the N-2th time, can be broadcast to provide the charging power of the N-2th time to the charging device. If no, it is indicated that the power in the PDO broadcast to the charging device last time belongs to the extended power range, so there is no need to rebroadcast the PDO, and the charging power of the fifth power can be continued to be provided to the charging device.

[0103] It can be understood that in the above application scenario, if the second charging current does not belong to the preset false charging current interval, it can be determined that the charging process of the charging device is normal and there is no false charging. Therefore, the charging power of 100 W or more can be provided to the charging device to make it resume normal charging.

[0104] The device charging method provided in this application can acquire charging status information of the charging device. This charging status information includes at least one of the actual charging power and actual charging current of the charging device. Then, based on the charging status information, a first power transmission object matching the charging device is determined. This first power transmission object includes a first power to be broadcast to the charging device, representing the power supported by the charging device. The first power is then broadcast to the charging device so that the charging device adopts a charging method matching the first power. Therefore, by broadcasting a power transmission object matching the charging device's charging status, the charging device can be controlled to adopt a charging method matching the first power included in the power transmission object. This allows for timely broadcasting of a matching power transmission object based on the charging device's charging status, and the power included in the power transmission object is the power supported by the charging device, thereby reducing the occurrence of false charging phenomena.

[0105] Figure 2 is a schematic flowchart of another device charging method provided in an embodiment of this application.

[0106] As shown in Figure 2, the method specifically includes:

[0107] Step 201: Obtain the charging status information of the charging device, wherein the charging status information includes the actual charging power of the charging device.

[0108] In this embodiment, the charging device may include, but is not limited to, a computer, a mobile phone, a power bank, etc.

[0109] Charging status information indicates the actual charging status of the charging device. Actual charging power indicates the actual charging power of the charging device. The aforementioned charging status information includes the actual charging power of the charging device.

[0110] Step 202: Determine whether the actual charging power falls within the extended power range to obtain the first determination result.

[0111] In this embodiment, Extended Power Range (EPR) is a concept in some power delivery standards (such as PD3.1). EPR is mainly used to extend the upper limit of power output to meet the needs of devices with higher power requirements. For example, in PD3.1, EPR can extend the maximum power range from 100W in the previous version to 240W.

[0112] In PD3.1, if the charging power exceeds the upper limit supported by previous versions (such as PD 3.0) (usually 100W) and reaches a value within 240W, then it can be considered to fall within the Extended Power Range (EPR). For example, if a charger supports an output power of 150W, but PD3.0 only supports a maximum of 100W, then the 150W charging power falls within the extended power range of PD 3.1.

[0113] The first determination result can indicate whether the actual charging power mentioned above falls within the extended power range.

[0114] Step 203: Based on the first determination result, determine a first power transmission object that matches the charging device, wherein the first power transmission object includes a first power for broadcasting to the charging device, and the first power represents the power supported by the charging device.

[0115] In this embodiment, if the first determination result indicates that the actual charging power belongs to the extended power range, the first power included in the first power transmission object matching the charging device can be determined as power A based on the charging state information. If the first determination result indicates that the charging power does not belong to the extended power range, the first power included in the first power transmission object matching the charging device can be determined as power B based on the charging state information.

[0116] In addition, other methods can be used to achieve step 203 above, which will be described in detail below.

[0117] Step 204: Broadcast the first power transmission target to the charging device so that the charging device can charge using a charging method that matches the first power.

[0118] In this embodiment, step 204 is basically the same as step 104 in the embodiment corresponding to Figure 1, and will not be described again here.

[0119] In some optional implementations of this embodiment, the charging status information may also include the actual charging current of the charging device.

[0120] The actual charging current can be the actual charging current of the aforementioned charging device.

[0121] Based on this, the first power transmission object matching the charging device can be determined using the following method, based on the first determination result mentioned above:

[0122] If the first determination result indicates that the actual charging power does not fall within the extended power range, then determine whether the actual charging current falls within the preset dummy charging current range to obtain the second determination result.

[0123] The preset fake charging current range can be a pre-defined range. If the charging current of the charging device falls within this range, the device may be experiencing a fake charging phenomenon. If the charging current does not fall within this range, the device is not currently experiencing a fake charging phenomenon. For example, the preset fake charging current range could be 0-80mA.

[0124] The second determination result can indicate whether the actual charging current of the charging device belongs to the preset fake charging current range.

[0125] Based on the second determination result above, a first power transmission object that matches the above-mentioned charging device is determined.

[0126] As an example, if the second determination result indicates that the actual charging current of the charging device belongs to a preset dummy charging current range, then, based on the above charging state information, the first power included in the first power transmission object matching the charging device can be determined to be power a. If the second determination result indicates that the actual charging current of the charging device does not belong to the preset dummy charging current range, then, based on the above charging state information, the first power included in the first power transmission object matching the charging device can be determined to be power b.

[0127] It is understandable that, among the above-mentioned optional implementation methods, the charging power and charging current of the charging device can be combined to determine the first power transmission object that is more compatible with the charging state of the charging device. In this way, the phenomenon of false charging of the charging device can be further reduced or even avoided.

[0128] In some application scenarios among the above optional implementation methods, the charging status information of the charging device can be obtained in the following ways:

[0129] When the charging power that provides a second power to the charging device is obtained, the charging status information of the charging device is obtained, wherein the second power is within the extended power range.

[0130] As an example, the second power could be 100W.

[0131] Based on this, the first power transmission object matching the charging device can be determined using the second determination result described above:

[0132] The first step is to determine whether the dummy charging duration of the charging device is greater than or equal to a preset duration threshold (e.g., 3 seconds or 5 seconds) if the second determination result indicates that the actual charging current of the charging device belongs to the preset dummy charging current range.

[0133] The aforementioned dummy charging duration refers to the duration during which the actual charging current of the aforementioned charging device continuously and uninterruptedly falls within the aforementioned preset dummy charging current range.

[0134] The second step is to determine the first power included in the first power transmission object as the third power when the above-mentioned fake duration is greater than or equal to the above-mentioned preset duration threshold.

[0135] The third power mentioned above falls within the standard power range. This third power is less than the second power. For example, the third power could be 99W.

[0136] It is understandable that in the above application scenarios, if the charging current continuously falls within the preset fake charging current range for a preset duration threshold, it can be determined that the current charging device is in a fake charging situation. Therefore, the normal charging of the charging device can be restored by reducing the charging power of the charging device.

[0137] In some application scenarios of the above optional implementation methods, the broadcast order of the first power transmission object can be represented as N.

[0138] Based on this, the first power transmission object matching the charging device can be determined using the second determination result described above:

[0139] The first step is to determine whether the power included in the second power transmission object broadcast in the (N-1)th time is within the standard power range if the second determination result indicates that the actual charging current does not belong to the preset fake charging current range.

[0140] The second step involves determining the power of the second power transmission object as the power of the second power transmission object broadcast in the (N-2)th broadcast if the power of the second power transmission object falls within the standard power range. If the power of the second power transmission object does not fall within the standard power range, the broadcast of this power transmission object is terminated.

[0141] For example, please refer to Figure 3. In Figure 3, after broadcasting the latest power PDO (i.e., the first power transmission object broadcast in the Nth time), the charging device can use a charging method matching the PDO to charge. Then, the actual charging current of the charging device can be detected. In the figure, 10 seconds after broadcasting the latest power PDO, it is first determined whether the charging device has entered EPR mode. If the charging device has not entered EPR mode, the actual charging current of the charging device is determined. If the actual charging current does not fall within the preset dummy charging current range (less than 80mA in the figure), it can be determined whether the power included in the PDO previously broadcast to the charging device (i.e., the power included in the second power transmission object broadcast in the N-1th time) falls within the standard power range of the PD3.1 charging protocol (e.g., whether it is 99W). If so, the power from the previous broadcast, i.e., the power included in the second power transmission object of the N-2th broadcast, can be broadcast; if not, it means that the power in the PDO broadcast to the charging device last time belongs to the extended power range, so there is no need to rebroadcast the PDO, and the fifth power of charging power can be continued to be provided to the above-mentioned charging device.

[0142] It's understandable that due to issues with the charging strategies of some charging devices, broadcasting two identical power values ​​to a charging device might result in false charging (voltage present, but current extremely low). For 100W and below, false charging won't occur if the power transmission targets in the two broadcasts are different. Therefore, in the above application scenario, if the power broadcast in the (N-1)th time is not within the standard power range (e.g., 99W), then this broadcast is unnecessary; if the power broadcast in the (N-1)th time is within the standard power range (e.g., 99W), then the power already broadcast in the (N-2)th time can be broadcast, thus further preventing false charging.

[0143] It should be noted that, in addition to the contents described above, this embodiment may also include the corresponding technical features described in the embodiment corresponding to FIG1, thereby achieving the technical effect of the device charging method shown in FIG1. ​​For details, please refer to the relevant description in FIG1. ​​For the sake of brevity, it will not be elaborated here.

[0144] The device charging method provided in this application determines a first power transmission object that is more compatible with the charging state of the charging device by using the charging power of the charging device. This can further reduce or even avoid the phenomenon of false charging of the charging device.

[0145] The embodiments of this application are described below by way of example. However, it should be noted that the embodiments of this application may have the features described below, but the following description does not constitute a limitation on the protection scope of the embodiments of this application.

[0146] Before introducing this plan, the following explanations are provided for the terms used in this plan:

[0147] PD USB (Power Delivery USB (Universal Serial Bus), a fast charging protocol standard);

[0148] MCU (microprogrammed control unit, minimum control unit);

[0149] I2C (Inter-Integrated Circuit): A simple, bidirectional two-wire synchronous serial bus communication protocol;

[0150] C1: The first Type-C port;

[0151] C2: The second Type-C port;

[0152] SRAM (Static Random-Access Memory).

[0153] With the widespread adoption of the PD3.1 protocol, charging power has increased from a maximum of 100W to 240W. Most charging devices currently on the market (phones, headphones, watches, game consoles, laptops) use the older PD3.0 protocol. While PD3.1 is backward compatible with PD3.0, there are no issues with single-port charging, i.e., charging with a fixed power distribution. However, with multi-port charging devices, power distribution becomes necessary. This is especially problematic when the charging device doesn't support PD3.1, but the power supply device does and has a PD3.1 rating greater than 100W. In such cases, the device may falsely claim to be charging at all.

[0154] Cause of the problem: The charging strategy of older devices is problematic. When the product's power allocation broadcasts two devices with the same power, the device will exhibit false charging (voltage is present, but the current is extremely low). In products with a display screen, users can intuitively see the relevant charging parameters (voltage, current, and power), thus directly exposing the product problem.

[0155] Application equipment: Charging products with power distribution (i.e., the power supply equipment mentioned above, hereinafter referred to as charging products).

[0156] Application scenario: Scenarios where power distribution occurs when charging devices with power distribution features.

[0157] Circuit diagram description:

[0158] Figure 5 shows a schematic diagram of another device charging system provided in an embodiment of this application. The device charging system in Figure 5 is an MCU-less (Microcontroller Unit) main control architecture, where the MCU functions are integrated into a protocol chip, which performs design functions such as protocol detection and power allocation. This design method has the advantage of low cost.

[0159] As shown in Figure 6, Figure 6 is a structural schematic diagram of another device charging system provided in an embodiment of this application. Figure 6 shows an MCU architecture diagram, where the MCU master controller interacts with the IC via I2C and other signals to obtain and set the operating parameters of the corresponding protocol IC, including voltage and current charging protocol acquisition, power allocation settings, and other functions. This design method has good scalability.

[0160] Implementation process: (The following product framework diagram of 240W with 2C port is used as an example to describe the architecture with a main controller).

[0161] Parameter description:

[0162] C1_power_cur_set, C2_power_cur_set: Power allocation values ​​for the current interfaces C1 and C2;

[0163] C1_power_last_set, C2_power_last_set: Power allocation values ​​of the last interface of C1 and C2;

[0164] C1_Attach_status, C2_Attach_status: The connection status of C1 and C2, indicating whether a charging device is connected to the interface;

[0165] C1_error_check_time, C2_error_check_time: Error check timer for C1 and C2 respectively;

[0166] C1_Protocol, C2_Protocol: C1 and C2 charging protocols;

[0167] C1_current, C2_current: Charging current values ​​of C1 and C2;

[0168] C1_error_current_time, C2_error_current_time: Timing when the charging current of C1 and C2 is abnormal.

[0169] As shown in Figure 3, Figure 3 is a schematic flowchart of another device charging method provided in an embodiment of this application. After the charging product is powered on, the internal SRAM parameters are initialized, and then the relevant parameters of C1 and C2 are configured, including power settings. By default, the current power allocation of C1 and C2 is set to 140W (i.e., C1_power_cur_set = 140W, C2_power_cur_set = 140W) and the previous power allocation is 0W (i.e., C1_power_last_set = 0W, C2_power_last_set = 0W).

[0170] Then, the charging status of protocol IC1 and protocol IC2 is read via I2C signals. The read charging status of C1 is defined as parameter C1_Attach_status, and the charging status of C2 is defined as parameter C2_Attach_status. Both C1_Attach_status and C2_Attach_status are simultaneously stored in the main controller's SRAM. When any single port (C1 / C2) is connected, for example, when C1 is connected, the main controller reads the charging status of the protocol IC via I2C as 1. At this time, C1_Attach_status is set to 1 and stored in the SRAM. Then, the protocol IC broadcasts the power setting C1_power_cur_set = 140W to the charging device. Although C2 is not connected, it automatically adjusts to C2_power_cur_set = 120W (assuming the power allocation principle is 140W -> 120W + 120W when changing from 1 port to 2 ports). When C2 connects to another device, C1 can set the power allocation to 120W, i.e., C1_power_cur_set = 120W, while buffering the previously set power of 140W in C1_power. r_last_set = 140W; Since C2 is being inserted for the first time, C2_power_cur_set = 120W and C2_power_last_set = 0W; Then, in the main control task, the conditions for abnormal charging are determined by checking the connection status of the interface, whether the power distribution of the last two times is above 100W, and whether the device supports the PD3.1 protocol - mobile phone; and then entering EPR (i.e., the above extended power range) mode, and whether the charging current (i.e., the above actual charging current) parameter is normal.

[0171] In the above process, taking the behavior of the C1 interface as an example, when it is detected that C1_Attach_status = 1, and both C1_power_cur_set and C1_power_last_set are greater than 100W, then C1_error_check_time starts timing. When C1_error_check_time is greater than or equal to 10 seconds, it starts reading whether the protocol IC of the charging device has entered EPR mode (C1 protocol parameter is C1_Protocol). If C1_Protocol = EPR, it means that there is no problem with charging and no intervention is needed. =EPR, then start detecting the charging current C1_current at port C1. If C1_current is greater than 80mA, then no intervention is needed. When the charging current is less than or equal to 80mA (i.e., the preset false charging current range), start timing C1_error_current_time {} when the charging current is abnormal. If C1_error_current_time is greater than 3 seconds (i.e., the preset duration threshold mentioned above), it indicates that the charging is abnormal, and the parameter C1_error_flag is set to 1. When C1_error_flag = 1, the main controller... The protocol IC broadcast power C1_power_cur_set is set to 99W (belonging to the third power mentioned above). Since the secondary broadcast packet switches from 140W to 120W, and the charging device does not support PD3.1, it's equivalent to the charging device receiving two identical 100W packets. Therefore, setting it to 99W avoids the issue of identical broadcast power values. Simultaneously, the abnormal activation attempt count error_trip_test_timecount is set to 1. After setting the broadcast, the current is monitored. If the current exceeds 80mA (i.e., the preset false charging current range mentioned above), it indicates that the charging abnormality has been resolved to normal charging. After normal charging, if error_trip_test_timecount > 0 is detected, C1_power_cur_set is reset to 120W (i.e., the fifth power mentioned above) to return it to the normally set power specification.

[0172] It should be noted that, in addition to the contents described above, this embodiment may also include the technical features described in the above embodiments, thereby achieving the technical effect of the device charging method shown above. Please refer to the above description for details. For the sake of brevity, it will not be elaborated here.

[0173] The device charging solution provided in this application allows the product to charge normally without increasing costs, and it achieves normal charging without requiring manual plugging and unplugging. Normal charging can be resumed without the user noticing (the screen does not flicker, and the device continues to charge).

[0174] Figure 4 is a schematic diagram of a device charging system provided in an embodiment of this application. The device charging system 10 includes a processing unit 11 and a charging interface group 12. The processing unit 11 is connected to each of the charging interfaces in the charging interface group 12. In the figure, the charging interface group 12 includes a charging interface 120 and a charging interface 121.

[0175] The processing unit 11 is configured to: acquire charging status information of the charging device connected to the charging interface 120 or charging interface 121 in the charging interface group 12, wherein the charging status information includes at least one of the actual charging power and the actual charging current of the charging device; based on the charging status information, determine a first power transmission object matching the charging device, wherein the first power transmission object includes a first power for broadcasting to the charging device, the first power representing the charging power supported by the charging device; and broadcast the first power transmission object to the connected charging device so that the charging device adopts a charging method matching the first power for charging.

[0176] In some optional implementations of this embodiment, as shown in FIG5, the processing unit 11 includes a protocol chip, which is connected to each of the charging interfaces in the charging interface group.

[0177] The aforementioned protocol chip is used to: obtain charging status information of the charging device connected to the charging interface in the charging interface group; determine a first power transmission object matching the charging device based on the charging status information, wherein the first power transmission object includes a first power for broadcasting to the charging device, the first power representing the power supported by the charging device; and broadcast the first power transmission object to the connected charging device so that the charging device adopts a charging method matching the first power for charging.

[0178] In addition, in some cases, the processing unit 11 also includes a protocol chipset. The protocol chips in the protocol chipset are connected one-to-one with the charging interfaces in the charging interface group.

[0179] In Figure 5, AC-DC represents an AC-DC converter.

[0180] It is understood that the device charging system in the above optional implementation is an MCU-less (Microcontroller Unit) main control architecture. The protocol chip integrates the functions of the MCU, that is, the chip completes the design functions such as protocol detection and power distribution, which makes the system have the advantage of low cost.

[0181] In some optional implementations of this embodiment, as shown in FIG6, the processing unit 11 includes a microcontroller, which is connected to each of the charging interfaces (e.g., charging interface 120, charging interface 121) in the charging interface group 12.

[0182] The microcontroller is configured to: acquire charging status information of the charging device connected to the charging interface 120 or charging interface 121; determine a first power transmission object matching the charging device based on the charging status information, wherein the first power transmission object includes a first power for broadcasting to the charging device, the first power representing the power supported by the charging device; and broadcast the first power transmission object to the connected charging device so that the charging device adopts a charging method matching the first power for charging.

[0183] It is understood that the device charging system in the above optional implementation method has an MCU architecture diagram, that is, the MCU master controller interacts with the corresponding protocol IC through I2C and other signals to obtain and set the working parameters, including voltage and current charging protocol acquisition, power distribution settings and other functions, thereby making the device charging system have better scalability.

[0184] The device charging system provided in this embodiment includes a processing unit and a charging interface group. The processing unit is connected to each charging interface in the charging interface group. The processing unit is used to: acquire charging status information of the charging devices connected to the charging interfaces in the charging interface group; determine a first power transmission object matching the charging device based on the charging status information, wherein the first power transmission object includes a first power for broadcasting to the charging device, the first power representing the power supported by the charging device; and broadcast the first power transmission object to the connected charging device so that the charging device uses a charging method matching the first power. Therefore, by broadcasting a power transmission object matching the charging device's charging status to the charging device, the charging device can be controlled to use a charging method matching the first power included in the power transmission object. This allows for timely broadcasting of a matching power transmission object based on the charging device's charging status, and the power included in the power transmission object is the power supported by the charging device, thereby reducing the occurrence of false charging phenomena.

[0185] Figure 7 is a schematic diagram of an electronic device provided in an embodiment of this application. The electronic device 500 shown in Figure 7 includes: at least one processor 501, a memory 502, at least one network interface 504, and other user interfaces 503. The various components in the electronic device 500 are coupled together through a bus system 505. It is understood that the bus system 505 is used to realize the connection and communication between these components. In addition to a data bus, the bus system 505 also includes a power bus, a control bus, and a status signal bus. However, for clarity, all buses are labeled as bus system 505 in Figure 7.

[0186] The user interface 503 may include a display, keyboard, or clicking device (e.g., mouse, trackball, touchpad, or touchscreen).

[0187] It is understood that the memory 502 in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 502 described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0188] In some implementations, memory 502 stores elements, executable units or data structures, or subsets thereof, or extended sets thereof: operating system 5021 and application program 5022.

[0189] The operating system 5021 includes various system programs, such as the framework layer, core library layer, and driver layer, used to implement various basic business functions and handle hardware-based tasks. The application program 5022 includes various applications, such as a media player and a browser, used to implement various application functions. Programs implementing the methods of this application embodiment can be included in application program 5022.

[0190] In this embodiment, by calling the program or instructions stored in memory 502, specifically the program or instructions stored in application program 5022, processor 501 executes the method steps provided in each method embodiment, including, for example:

[0191] Obtain charging status information of the charging device, wherein the charging status information includes at least one of the actual charging power and the actual charging current of the charging device.

[0192] Based on the above charging status information, a first power transmission object matching the above charging device is determined, wherein the first power transmission object includes a first power for broadcasting to the above charging device, and the first power represents the charging power supported by the above charging device.

[0193] The first power transmission target is broadcast to the charging device so that the charging device can charge using a charging method that matches the first power.

[0194] The methods disclosed in the embodiments of this application can be applied to or implemented by processor 501. Processor 501 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 501 or by instructions in the form of software. The processor 501 may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or can be executed by a combination of hardware and software units in the decoding processor. The software units may be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory 502. Processor 501 reads the information in memory 502 and, in conjunction with its hardware, completes the steps of the above method.

[0195] It is understood that the embodiments described herein can be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described above, or combinations thereof.

[0196] For software implementation, the techniques described herein can be implemented by units that perform the functions described above. The software code can be stored in memory and executed by a processor. The memory can be implemented within the processor or external to the processor.

[0197] The electronic device provided in this embodiment can be the electronic device shown in Figure 7, which can execute all the steps of the above-described device charging methods, thereby achieving the technical effects of the above-described device charging methods. For details, please refer to the above-described related descriptions. For the sake of brevity, it will not be elaborated here.

[0198] This application also provides a storage medium (computer-readable storage medium). This storage medium stores one or more programs. The storage medium may include volatile memory, such as random access memory; it may also include non-volatile memory, such as read-only memory, flash memory, hard disk, or solid-state drive; and it may also include combinations of the above types of memory.

[0199] When one or more programs in the storage medium can be executed by one or more processors to implement the device charging method described above that is executed on the electronic device side.

[0200] The processor described above is used to execute a device charging program stored in memory to implement the following steps of a device charging method executed on the electronic device side:

[0201] Obtain charging status information of the charging device, wherein the charging status information includes at least one of the actual charging power and the actual charging current of the charging device.

[0202] Based on the above charging status information, a first power transmission object matching the above charging device is determined, wherein the first power transmission object includes a first power for broadcasting to the above charging device, and the first power represents the charging power supported by the above charging device.

[0203] The first power transmission target is broadcast to the charging device so that the charging device can charge using a charging method that matches the first power.

[0204] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0205] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both. The software module can be located in random access memory (RAM), main memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.

[0206] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0207] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A device charging method, wherein, The method comprises: obtaining charging state information of a charging device, wherein the charging state information comprises at least one of an actual charging power and an actual charging current of the charging device; determining a first power transmission object matched with the charging device based on the charging state information, wherein the first power transmission object comprises a first power for broadcasting to the charging device, and the first power represents a power supported by the charging device for charging; broadcasting the first power transmission object to the charging device, so that the charging device charges in a charging mode matched with the first power.

2. The method of claim 1, wherein, The charging state information comprises the actual charging power of the charging device; and The determination of the first power transmission object matched with the charging device based on the charging state information comprises: determining whether the actual charging power belongs to an extended power range, to obtain a first determination result; determining the first power transmission object matched with the charging device based on the first determination result.

3. The method of claim 2, wherein, The charging state information further comprises the actual charging current of the charging device; and The determination of the first power transmission object matched with the charging device based on the first determination result comprises: in a case where the first determination result indicates that the actual charging power does not belong to the extended power range, determining whether the actual charging current belongs to a preset false charging current interval, to obtain a second determination result; determining the first power transmission object matched with the charging device based on the second determination result.

4. The method of claim 3, wherein, The obtaining of the charging state information of the charging device comprises: obtaining the charging state information of the charging device in a case where a charging power provided to the charging device is a second power, wherein the second power belongs to the extended power range.

5. The method of claim 4, wherein, The determination of the first power transmission object matched with the charging device based on the second determination result comprises: in a case where the second determination result indicates that the actual charging current of the charging device belongs to the preset false charging current interval, determining whether a false charging duration of the charging device is greater than or equal to a preset duration threshold, wherein the false charging duration represents a duration during which the actual charging current of the charging device continuously belongs to the preset false charging current interval; in a case where the false charging duration is greater than or equal to the preset duration threshold, determining a first power included in the first power transmission object as a third power, wherein the third power belongs to a standard power range.

6. The method of claim 3, wherein, The broadcasting order of the first power transmission object is represented as N; and The determination of the first power transmission object matched with the charging device based on the second determination result comprises: in a case where the second determination result indicates that the actual charging current does not belong to the preset false charging current interval, determining whether a power included in a second power transmission object broadcasted for the N-1th time belongs to a standard power range.

7. The method of claim 3, wherein, The broadcasting order of the first power transmission object is represented as N; and The determination of the first power transmission object matched with the charging device based on the second determination result comprises: In a case where the power included in the second power transmission object belongs to the standard power range, the first power included in the first power transmission object is determined as the power included in a second power transmission object of an N-2th broadcast.

8. The method of claim 3, wherein, The broadcast order of the first power transmission object is represented as N; And The first power transmission object matched with the charging device is determined based on the second determination result, including: In a case where the power included in the second power transmission object does not belong to the standard power range, the broadcast of the current power transmission object is ended.

9. The method according to one of claims 1-8, wherein, The method is applied to a power supply device for supplying power to the charging device, and the power supply device supports the PD3.1 charging protocol, and the power supply device includes a charging interface; And Before the charging state information of the charging device is obtained, the method further includes: In a case where the charging interface accesses the charging device, a third power transmission object is broadcasted, wherein the third power transmission object includes a fourth power, and the fourth power is an upper limit value of the standard power range of the PD3.1 charging protocol.

10. The method of claim 9, wherein, In a case where the first power belongs to the standard power range, after the charging device charges in a charging mode matched with the first power, the method further includes: In a case where the charging device charges in a charging mode matched with the first power, the actual charging current of the charging device is detected; In a case where the detected actual charging current does not belong to a preset false charging current interval, the charging device is provided with a fifth power as charging power, and the fifth power belongs to an extended power range of the PD3.1 charging protocol.

11. The method according to one of claims 1-8, wherein, The charging interface group includes at least two charging interfaces.

12. A device charging system, wherein, The device charging system includes a processing unit and a charging interface group, and the processing unit is connected with each charging interface in the charging interface group; wherein: The processing unit is configured to: obtain charging state information of a charging device connected with the charging interface in the charging interface group, wherein the charging state information includes at least one of an actual charging power and an actual charging current of the charging device; determine a first power transmission object matched with the charging device based on the charging state information, wherein the first power transmission object includes a first power for broadcasting to the charging device, and the first power represents a power supported by the charging device for charging; and broadcast the first power transmission object to the connected charging device, so that the charging device charges in a charging mode matched with the first power.

13. The device charging system of claim 12, wherein, The processing unit includes a protocol chip connected with each charging interface in the charging interface group; wherein: The protocol chip is configured to: acquire charging state information of a charging device connected to the charging interface in the charging interface group; determine a first power transmission object matched with the charging device based on the charging state information; and broadcast the first power transmission object to the connected charging device, so that the charging device charges in a charging mode matched with the first power.

14. The device charging system of claim 12, wherein, The processing unit comprises a microcontroller connected to each of the charging interfaces in the charging interface group; wherein: The microcontroller is configured to: acquire charging state information of a charging device connected to the charging interface in the charging interface group; determine a first power transmission object matched with the charging device based on the charging state information; and broadcast the first power transmission object to the connected charging device, so that the charging device charges in a charging mode matched with the first power.

15. The device charging system of claim 12, wherein, The processing unit comprises an AC-DC module and a DC-DC module group, the AC-DC module is connected to each of the DC-DC modules in the DC-DC module group, and the DC-DC modules in the DC-DC module group are connected to the charging interfaces in the charging interface group; The AC-DC module is configured to: convert AC power into first DC power, wherein the voltage of the first DC power is the working voltage of the DC-DC modules in the DC-DC module group; and transmit the first DC power to the DC-DC modules in the DC-DC module group; The DC-DC modules in the DC-DC module group are configured to: convert the first DC power into second DC power, wherein the voltage of the second DC power is the working voltage of the charging interfaces in the charging interface group; and transmit the second DC power to the charging interfaces in the charging interface group.

16. The device charging system of claim 15, wherein, The DC-DC modules in the DC-DC module group are integrated with a microcontroller unit function; and The DC-DC modules in the DC-DC module group are further configured to: acquire charging state information of a charging device connected to the charging interface in the charging interface group; determine a first power transmission object matched with the charging device based on the charging state information; and broadcast the first power transmission object to the connected charging device, so that the charging device charges in a charging mode matched with the first power.

17. The device charging system of claim 15, wherein, The processing unit further comprises a microcontroller unit connected to the AC-DC module and the DC-DC modules in the DC-DC module group, respectively; The microcontroller unit is configured to: acquire charging state information of a charging device connected to the charging interface in the charging interface group; and determine a first power transmission object matched with the charging device based on the charging state information; The DC-DC modules in the DC-DC module group are further configured to: broadcast the first power transmission object to the connected charging device, so that the charging device charges in a charging mode matched with the first power.

18. The device charging system of claim 17, wherein, The microcontroller unit is connected with the AC-DC module through a master power conversion module; and The master power conversion module is used for converting the output voltage of the AC-DC module into the working voltage of the microcontroller unit.

19. The device charging system of any of claims 12-18, wherein, The charging interface group comprises at least two charging interfaces.

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