Headband device, XR equipment and headband device charging control method

Abstract

The invention discloses a head band device, XR equipment and a head band device charging control method, the head band device is connected with an XR host, the head band device comprises a head band body and a host connecting part, and the head band body is connected with the XR host through the host connecting part; the head band body is further provided with a battery cell, a power management module, a power input end used for being connected with a power adapter and an output connector port used for being connected with an XR host. The power management module is connected with the power input end and the output connector port and comprises a main controller, a first charging management circuit and a second charging management circuit, the first charging management circuit and the second charging management circuit are connected with the main controller, the power input end and the output connector port are connected with the main controller, and the first charging management circuit is connected with the output connector port. The first charging management circuit is connected with the XR host to charge the XR host through boost-buck adjustment, the second charging management circuit is connected with the battery cell to charge the battery cell through boost-buck adjustment, and the battery cell is connected with the output connector port.

Description

Technical Field

[0001] The present invention relates to the technical field of XR device charging, and in particular to a headband device, an XR device, and a charging control method for the headband device. Background Art

[0002] XR (Extended Reality) refers to the combination of reality and virtuality through computers to create a virtual environment for human-computer interaction. It is a general term for multiple technologies such as AR (Augmented Reality), VR (Virtual Reality), and MR (Mixed Reality). The existing XR console has a small battery capacity and short battery life. The XR headband can increase the battery life of the XR console, increase the time users play XR games, and improve the user experience. However, the existing XR headband has a slow charging efficiency and still cannot meet the battery life requirements of the XR console. Summary of the invention

[0003] An object of the present invention is to provide a headband device, an XR device and a headband device charging control method to improve charging efficiency.

[0004] In a first aspect, the present invention provides a headband device, which is connected to an XR host, and includes a headband body and a host connection part. The headband body is connected to the XR host through the host connection part. The headband body is provided with a battery cell, a power input end, an output connector port and a power management module. The power input end is used to connect to a power adapter; the output connector port is used to connect to the XR host; the power management module is connected to the power input end and the output connector port, and the power management module includes a main controller, a first charging management circuit and a second charging management circuit. The power input end and the output connector port are connected to the main controller, and the main controller is respectively connected to the first charging management circuit and the second charging management circuit to control the operation of the first charging management circuit and the second charging management circuit. The first charging management circuit is connected to the output connector port, and the first charging management circuit is adjusted to charge the XR host by buck-boost, and the second charging management circuit is connected to the battery cell, and the second charging management circuit is adjusted to charge the battery cell by buck-boost, and the battery cell is connected to the output connector port.

[0005] In a second aspect, the present invention further provides an XR device, comprising the above-mentioned headband device and an XR host, wherein the headband device is connected to the XR host.

[0006] In the third aspect, the present invention also provides a charging control method for a headband device, which is applied to an XR device, and the charging control method for the headband device includes the following steps: input current acquisition: acquiring the input current of a power adapter through the power input terminal; XR host charging: performing step-up and step-down processing on the obtained input current through a first charging management circuit to generate a first charging current and charge the XR host through an output connector port; battery cell charging: performing step-up and step-down processing on the obtained input current through a second charging management circuit to generate a second charging current and charge the battery cell of the headband device.

[0007] The headband device of the present invention is provided with a power management module including a main controller, a first charging management circuit and a second charging management circuit on the headband body, so as to charge the XR host connected to the output connector port of the headband device by using the first charging management circuit through step-up and step-down adjustment, and charge the battery of the headband device by using the second charging management circuit through step-up and step-down adjustment, so as to realize the simultaneous charging of the XR host and the battery of the headband device. Then, the headband device can charge the XR host and its own battery, and can control the operation of the first charging management circuit and the second charging management circuit according to the demand through the main controller, so as to improve the charging efficiency of the XR host and the battery. The XR device and the charging control method of the headband device of the present invention also have the above functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0009] Figure 1 A schematic diagram of the frame of the headband device provided by the present invention;

[0010] Figure 2 A schematic diagram of a frame of a specific embodiment of the headband device provided by the present invention;

[0011] Figure 3 A schematic flow chart of a headband device charging control method provided by the present invention;

[0012] Figure 4 This is a schematic diagram of a specific flow chart of the headband device charging control method provided by the present invention. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] See also Figure 1 , Figure 1 The frame schematic diagram of the headband device provided by the present invention, the headband device 10 is connected to the XR host, including a headband body 101 and a host connection part 102, the headband body 101 is connected to the XR host through the host connection part 102, the headband body is also provided with a battery 11, a power input terminal 12, an output connector port 13 and a power management module 14, the power input terminal 12 is used to connect to a power adapter; the output connector port 13 is used to connect to the XR host; the power management module 14 is connected to the power input terminal 12 and the output connector port 13, and the power management module 14 includes a main controller 143, a first charging management circuit 141 and a second charging management circuit 14 2. The power input terminal 12 and the output connector port 13 are connected to the main controller 143, and the main controller 143 is respectively connected to the first charging management circuit 141 and the second charging management circuit 142 to control the operation of the first charging management circuit 141 and the second charging management circuit 142. The first charging management circuit 141 is connected to the output connector port 13, and the first charging management circuit 141 charges the XR host through buck-boost adjustment. The second charging management circuit 142 is connected to the battery cell 11, and the second charging management circuit 142 charges the battery cell 11 through buck-boost adjustment. The battery cell 11 is connected to the output connector port 13.

[0015] Among them, the main controller 143 supports the PD (Power Delivery) protocol and the QC (Quick Charge) protocol, so that the circuit can realize the fast charging function. The Power Delivery (PD for short) protocol is a power transmission protocol based on the USB Type-C interface. It adopts a two-way communication mechanism, allowing devices to negotiate voltage and current to achieve a more flexible charging solution. By using the Type-C interface, the PD protocol can achieve higher charging speeds and higher energy transmission efficiency. The Quick Charge (QC for short) protocol is a high-voltage fast charging technology based on the USB Type-A interface by adding a special chip to the USB cable. The QC protocol allows the charger to communicate with the device to determine the optimal charging rate. The number of host connection parts 102 can be two, which are respectively arranged at both ends of the headband body 101 to be detachably connected to the left and right ends of the XR host, so that the XR host is installed and connected to the headband device 10. By setting the host connection part 102, a stable connection between the XR main body and the headband body 101 is achieved, and the disassembly and assembly operation is convenient and quick. The main controller 143 can use a chip with model CS32G020. The power input end 12 may be an input Type-C connector port, and the output connector port 13 may be an output Type-C connector port. The headband device 10 is provided with a power management module 14 including a main controller 143, a first charging management circuit 141, and a second charging management circuit 142 on the headband body 101, so as to charge the XR host connected to the output connector port 13 of the headband device 10 by using the first charging management circuit 141 through step-up and step-down adjustment, and charge the battery cell 11 of the headband device 10 by using the second charging management circuit 142 through step-up and step-down adjustment, so as to realize the simultaneous charging of the XR host and the battery cell 11 of the headband device 10, and the headband device 10 can charge the XR host connected to the output connector port 13 of the headband device 10. The XR host charges and charges its own battery cell 11, and can control the operation of the first charging management circuit 141 and the second charging management circuit 142 through the main controller 143 as needed to improve the charging efficiency of the XR host and the battery cell 11. The charging process of the battery cell 11 is independent; moreover, the battery cell 11 is connected to the output connector port 13 to control the battery cell 11 to charge the XR host, so that no matter how much charging power is input by the power adapter, the power output of the output connector port 13 can be kept optimal, further improving the charging efficiency of the XR host.

[0016] Specifically, the first charging management circuit 141 is connected to the output connector port 13 to provide the best XR host charging current to the output connector port 13 through step-up and step-down adjustment; wherein the best XR host charging current is the charging current value or the charging voltage value corresponding to the best charging efficiency of the XR host. The best XR host charging current is obtained according to the charging power input by the power adapter and the charging power required by the XR host. The charging power required by the XR host changes with the battery power state of the XR host. When the battery power of the XR host is high, the charging power required by the XR host becomes lower. When the charging power input by the power adapter is not lower than the charging power required by the XR host, as the charging of the XR host proceeds, the charging power required by the XR host becomes lower in the later stage of the charging of the XR host, and the difference between the charging power input by the power adapter and the charging power required by the XR host becomes larger. In order to maintain the best charging efficiency of the XR host, more charging power input by the power adapter is used to charge the battery of the headband device in the later stage of the charging of the XR host, and the charging current corresponding to the charging power required by the XR host is provided to the XR host. When the charging power input by the power adapter is lower than the charging power required by the XR host, as the charging of the XR host proceeds, the charging power required by the XR host becomes lower in the later stage of charging of the XR host. If the charging power input by the power adapter at this time is still lower than the charging power required by the XR host, the difference between the charging power input by the power adapter and the charging power required by the XR host becomes smaller. In order to maintain the optimal charging efficiency of the XR host, the charging power of the battery cell to charge the XR host is reduced, and the charging power input by the power adapter is provided to the XR host, thereby providing the XR host with a charging current corresponding to the charging power required by the XR host; if the charging power input by the power adapter at this time is not lower than the charging power required by the XR host, in order to maintain the optimal charging efficiency of the XR host, the charging power input by the power adapter except the charging power required by the XR host is provided to the battery cell of the headband device for charging, and the charging current corresponding to the charging power required by the XR host is provided to the XR host.

[0017] Specifically, the second charging management circuit 142 is connected to the battery cell 11 to provide the battery cell 11 with an optimal battery cell charging current through step-up and step-down adjustment; wherein the optimal battery cell charging current is the charging current value or the charging voltage value corresponding to the charging efficiency of the battery cell 11. The optimal battery cell charging current is obtained according to the charging power input by the power adapter, and the voltage value and current value of the corresponding gear are selected according to the charging power input by the power adapter.

[0018] See also Figure 2Specifically, the first charging management circuit 141 includes a first DC / DC controller, and the first DC / DC controller is connected to the main controller 143, the power input terminal 12 and the output connector port 13.

[0019] Specifically, the second charging management circuit 142 includes a second DC / DC controller, and the second DC / DC controller is connected to the main controller 143, the power input terminal 12 and the battery cell 11. The second DC / DC controller can be a charging chip of model SC8910.

[0020] Preferably, the second DC / DC controller is connected to the battery cell 11 through a battery protection circuit 15. The battery protection circuit 15 may include a PCM protection board. By realizing the overcharge protection function, over-discharge protection function and overcurrent protection function of the battery cell 11, short circuit and other faults can be avoided, thereby improving the safety of the battery cell 11 and extending the service life of the battery cell 11. The input current of the power input terminal 12 can be connected to the second DC / DC controller through a switch tube, and the second DC / DC controller is connected to the battery cell 11 through the battery protection circuit 15. The control end of the switch tube is connected to the main controller 143, so that the input current obtained can be adjusted by the second DC / DC controller to increase or decrease the voltage and output the second charging current to the battery cell 11 for charging.

[0021] Specifically, the power input terminal 12 is connected to the first charging management circuit 141 through the first charging switch 16 , and the main controller 143 is connected to the first charging switch 16 to control the operation of the first charging switch 16 .

[0022] Specifically, the battery cell 11 is connected to the output connector port 13 through the second charging switch 17 to charge the XR host, and the main controller 143 is connected to the second charging switch 17 to control the operation of the second charging switch 17, thereby controlling the battery cell 11 to charge the XR host. Preferably, the battery cell 11 can be connected to the second charging switch 17 through the battery protection circuit 15. Of course, in some embodiments, the battery cell 11 can be connected to the output connector port 13 through the first charging management circuit 141 after passing through the battery protection circuit 15 and the second charging switch 17.

[0023] Preferably, the headband device 10 may also be provided with a power indicator circuit and an over-temperature protection circuit, and the power indicator circuit and the over-temperature protection circuit are connected to the main controller 143. The main controller 143 may be connected to the battery cell 11, so that the main controller 143 detects the power status of the battery cell 11 to control the operation of the power indicator circuit, thereby realizing the power status display. The over-temperature protection circuit includes a thermistor, so that the temperature of the entire circuit is detected by the thermistor, and the working state of the entire circuit is controlled according to the temperature condition.

[0024] Specifically, the present invention provides an XR device, including the headband device 10 and an XR host, wherein the headband device 10 is connected to the XR host.

[0025] See also Figure 3 , Figure 3 The headband device charging control method of the present invention is applied to an XR device, and the headband device charging control method comprises the following steps:

[0026] Step S11, input current acquisition: acquiring the input current of the power adapter through the power input terminal;

[0027] Step S12, charging the XR host: performing step-up and step-down processing on the input current obtained by the first charging management circuit to generate a first charging current and charge the XR host through the output connector port;

[0028] Step S13, charging the battery: the second charging management circuit performs step-up and step-down processing on the input current obtained to generate a second charging current and charge the battery of the headband device.

[0029] Among them, the headband device charging control method uses the main controller to obtain the input current of the power adapter through the power input terminal, controls the first charging management circuit to perform step-up and step-down processing on the obtained input current, generates a first charging current and charges the XR host through the output connector port, controls the second charging management circuit to perform step-up and step-down processing on the obtained input current, generates a second charging current and charges the battery cell of the headband device, thereby realizing the simultaneous charging of the XR host and the battery cell of the headband device. The headband device can charge the XR host and its own battery cell, and can control the operation of the first charging management circuit and the second charging management circuit through the main controller as needed to improve the charging efficiency of the XR host and the battery cell, and the charging process of the battery cell is independent; moreover, the XR host is charged first, so that regardless of the charging power input by the power adapter, the power output of the output connector port can be kept optimal, further improving the charging efficiency of the XR host.

[0030] Specifically, the first charging current in generating the first charging current and charging the XR host through the output connector port is the optimal XR host charging current, wherein the optimal XR host charging current is the charging current value or the charging voltage value corresponding to the optimal XR host charging efficiency. The optimal XR host charging current is obtained according to the charging power input by the power adapter and the charging power required by the XR host. The charging power required by the XR host changes with the battery power state of the XR host. When the battery power of the XR host is high, the charging power required by the XR host becomes lower. When the charging power input by the power adapter is not lower than the charging power required by the XR host, as the charging of the XR host proceeds, the charging power required by the XR host becomes lower in the later stage of the charging of the XR host, and the difference between the charging power input by the power adapter and the charging power required by the XR host becomes larger. In order to maintain the optimal charging efficiency of the XR host, more charging power input by the power adapter is used to charge the battery cell of the headband device in the later stage of the charging of the XR host, and the charging current corresponding to the charging power required by the XR host is provided to the XR host. When the charging power input by the power adapter is lower than the charging power required by the XR host, as the charging of the XR host proceeds, the charging power required by the XR host becomes lower in the later stage of charging of the XR host. If the charging power input by the power adapter at this time is still lower than the charging power required by the XR host, the difference between the charging power input by the power adapter and the charging power required by the XR host becomes smaller. In order to maintain the optimal charging efficiency of the XR host, the charging power of the battery cell to charge the XR host is reduced, and the charging power input by the power adapter is provided to the XR host, thereby providing the XR host with a charging current corresponding to the charging power required by the XR host; if the charging power input by the power adapter at this time is not lower than the charging power required by the XR host, in order to maintain the optimal charging efficiency of the XR host, the charging power input by the power adapter except the charging power required by the XR host is provided to the battery cell of the headband device for charging, and the charging current corresponding to the charging power required by the XR host is provided to the XR host.

[0031] Specifically, the second charging current in the generation of the second charging current and charging the battery cell of the headband device is an optimal battery cell charging current, wherein the optimal battery cell charging current is a charging current value or a charging current corresponding to a charging voltage value when the battery cell charging efficiency is optimal. The optimal battery cell charging current is obtained according to the charging power input by the power adapter, and the voltage value and current value of the corresponding gear are selected according to the charging power input by the power adapter.

[0032] See also Figure 4 , Figure 4 This is a flowchart of a specific embodiment of the headband device charging control method of the present invention, wherein step S12 specifically includes:

[0033] Step S121, detecting the charging power required by the XR host;

[0034] Step S122, detecting the charging power input by the power adapter;

[0035] Step S123, comparing the charging power input by the power adapter with the charging power required by the XR host;

[0036] Step S124: When the charging power input by the power adapter is lower than the charging power required by the XR host, the first charging switch connected between the current input terminal and the first charging management circuit is controlled to be turned on, and the first charging management circuit is controlled to perform step-up and step-down processing on the input current obtained, so as to generate a first charging current and provide the charging power input by the power adapter to the XR host through the output connector port for charging;

[0037] Step S125, controlling the battery cell to charge the XR host.

[0038] Among them, when the charging power input by the power adapter is lower than the charging power required by the XR host, charging the XR host through the battery cell can maintain the optimal power output of the output connector port, further improving the charging efficiency of the XR host.

[0039] Preferably, the step S125 is specifically as follows: controlling the second charging switch connected between the battery cell and the output connector port to be turned on, and controlling the battery cell to charge the XR host through the output connector port. Among them, the main controller can control the battery cell to provide the best XR host charging current to the XR host through the output connector port to charge the XR host; the best XR host charging current is the charging current value or the charging voltage value corresponding to the best charging efficiency of the XR host. The best XR host charging current is obtained according to the charging power input by the power adapter and the charging power required by the XR host. The charging power required by the XR host changes with the battery power state of the XR host. When the battery power of the XR host is high, the charging power required by the XR host becomes lower. When the charging power input by the power adapter is lower than the charging power required by the XR host, as the charging of the XR host proceeds, the charging power required by the XR host becomes lower in the later stage of charging of the XR host. If the charging power input by the power adapter at this time is still lower than the charging power required by the XR host, the difference between the charging power input by the power adapter and the charging power required by the XR host becomes smaller. In order to maintain the optimal charging efficiency of the XR host, the charging power of the battery cell to charge the XR host is reduced, and the charging power input by the power adapter is provided to the XR host, thereby providing the XR host with a charging current corresponding to the charging power required by the XR host; if the charging power input by the power adapter at this time is not lower than the charging power required by the XR host, in order to maintain the optimal charging efficiency of the XR host, the charging power input by the power adapter except the charging power required by the XR host is provided to the battery cell of the headband device for charging, and the charging current corresponding to the charging power required by the XR host is provided to the XR host.

[0040] Preferably, the control cell charges the XR host through the output connector port as follows:

[0041] The control cell provides the XR host with auxiliary charging power corresponding to the power difference between the charging power required by the XR host and the charging power input by the power adapter through the output connector port for charging.

[0042] Specifically, after step S125, the following steps are further included:

[0043] Step S126, controlling the second charging management circuit connected to the battery cell to be turned off to stop charging the battery cell.

[0044] Specifically, the step S123 further includes:

[0045] Step S231: When the charging power input by the power adapter is not lower than the charging power required by the XR host, the first charging switch connected between the current input terminal and the first charging management circuit is controlled to be turned on, and the first charging management circuit is controlled to perform step-up and step-down processing on the obtained input current to generate a first charging current and provide the charging power required by the XR host to the XR host through the output connector port for charging.

[0046] The step S13 specifically includes:

[0047] Step S131: When the charging power input by the power adapter is not less than the charging power required by the XR host, determine whether the charging power input by the power adapter is less than the sum of the charging power required by the XR host and the charging power required by the battery cell;

[0048] Step S132: When the charging power input by the power adapter is not lower than the charging power required by the XR host and lower than the sum of the charging power required by the XR host and the charging power required by the battery cell, control the second charging management circuit to perform step-up and step-down processing on the obtained input current, generate a second charging current, and provide the battery cell of the headband device with a charging power corresponding to the power difference between the charging power input by the power adapter and the charging power required by the XR host for charging.

[0049] Preferably, the step S131 further includes:

[0050] Step S311, when the charging power input by the power adapter is not less than the charging power required by the XR host and not less than the sum of the charging power required by the XR host and the charging power required by the battery cell, control the second charging management circuit to perform step-up and step-down processing on the obtained input current, generate a second charging current and provide the charging power required by the battery cell to charge the battery cell of the headband device.

[0051] Specifically, the step S12 further includes:

[0052] When the XR host completes charging, the first charging switch connected between the current input terminal and the first charging management circuit is controlled to be turned off to stop charging the XR host.

[0053] In summary, the headband device of the present invention is provided with a power management module including a main controller, a first charging management circuit and a second charging management circuit on the headband body, so as to charge the XR host connected to the output connector port of the headband device by using the first charging management circuit through step-up and step-down adjustment, and charge the battery of the headband device by using the second charging management circuit through step-up and step-down adjustment, so as to realize the simultaneous charging of the XR host and the battery of the headband device. Then, the headband device can charge the XR host and its own battery, and can control the operation of the first charging management circuit and the second charging management circuit according to the demand through the main controller, so as to improve the charging efficiency of the XR host and the battery. The XR device and the charging control method of the headband device of the present invention also have the above functions and are highly practical.

[0054] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A headband device, characterized in that: Connected to the XR host, including a headband body and a host connection part, the headband body is connected to the XR host through the host connection part, and the headband body is provided with: Battery cells; Power input terminal, used to connect to a power adapter; Output connector port, used to connect with XR host; A power management module is connected to the power input end and the output connector port, and the power management module includes a main controller, a first charging management circuit and a second charging management circuit. The power input end and the output connector port are connected to the main controller, and the main controller is respectively connected to the first charging management circuit and the second charging management circuit to control the operation of the first charging management circuit and the second charging management circuit. The first charging management circuit is connected to the output connector port, and the first charging management circuit charges the XR host through buck-boost adjustment. The second charging management circuit is connected to the battery cell, and the second charging management circuit charges the battery cell through buck-boost adjustment. The battery cell is connected to the output connector port.

2. The headband device according to claim 1, characterized in that: The first charging management circuit is connected to the output connector port to provide an optimal XR host charging current to the output connector port through buck-boost adjustment; wherein the optimal XR host charging current is a charging current value or a charging current corresponding to a charging voltage value when the XR host has the best charging efficiency.

3. The headband device according to claim 1, characterized in that: The first charging management circuit includes a first DC / DC controller connected to the main controller, the power input terminal and the output connector port.

4. The headband device according to claim 1, characterized in that: The second charging management circuit is connected to the battery cell to provide the battery cell with an optimal battery cell charging current through buck-boost adjustment; wherein the optimal battery cell charging current is the charging current value or charging voltage value corresponding to the battery cell charging efficiency when the charging efficiency is optimal.

5. The headband device according to claim 1, characterized in that: The second charging management circuit includes a second DC / DC controller, and the second DC / DC controller is connected to the main controller, the power input terminal and the battery cell.

6. The headband device according to claim 1, characterized in that: The power input terminal is connected to the first charging management circuit through a first charging switch, and the main controller is connected to the first charging switch to control the operation of the first charging switch.

7. The headband device according to claim 1, characterized in that: The battery cell is connected to the output connector port via a second charging switch to charge the XR host, and the main controller is connected to the second charging switch to control the operation of the second charging switch.

8. An XR device, characterized in that: The invention comprises the headband device and an XR host according to any one of claims 1 to 7, wherein the headband device is connected to the XR host.

9. A headband device charging control method, characterized in that: The headband device is applied to an XR device, and the headband device charging control method comprises the following steps: Input current acquisition: obtain the input current of the power adapter through the power input terminal; XR host charging: The input current is bucked and stepped up by the first charging management circuit to generate a first charging current and charge the XR host through the output connector port; Battery charging: The input current is bucked and stepped up by the second charging management circuit to generate a second charging current and charge the battery of the headband device.

10. The headband device charging control method according to claim 9, characterized in that: The first charging current in generating a first charging current and charging the XR host through the output connector port is an optimal XR host charging current, wherein the optimal XR host charging current is a charging current value or a charging voltage value corresponding to the best charging efficiency of the XR host.

11. The headband device charging control method according to claim 9, characterized in that: The second charging current in the step of generating the second charging current and charging the battery cell of the headband device is an optimal battery cell charging current, wherein the optimal battery cell charging current is a charging current value or a charging voltage value corresponding to the optimal battery cell charging efficiency.

12. The headband device charging control method according to claim 9, characterized in that: The steps of charging the XR host specifically include: Detect the charging power required by the XR host; Detect the charging power input by the power adapter; Compare the charging power input by the power adapter with the charging power required by the XR console; When the charging power input by the power adapter is lower than the charging power required by the XR host, the first charging switch connected between the current input terminal and the first charging management circuit is controlled to be turned on, and the first charging management circuit is controlled to perform step-up and step-down processing on the input current obtained, so as to generate a first charging current and provide the charging power input by the power adapter to the XR host through the output connector port for charging; Control the battery to charge the XR host.

13. The headband device charging control method according to claim 12, characterized in that: The steps of controlling the battery cell to charge the XR host are specifically as follows: The second charging switch connected between the battery cell and the output connector port is controlled to be turned on, and the battery cell is controlled to charge the XR host through the output connector port.

14. The headband device charging control method according to claim 13, characterized in that: The control cell charges the XR host through the output connector port as follows: The control cell provides the XR host with auxiliary charging power corresponding to the power difference between the charging power required by the XR host and the charging power input by the power adapter through the output connector port for charging.

15. The headband device charging control method according to claim 14, characterized in that: The step of controlling the battery cell to charge the XR host further includes: The second charging management circuit connected to the battery cell is controlled to be turned off to stop charging the battery cell.

16. The headband device charging control method according to claim 12, characterized in that: After the step of comparing the charging power input by the power adapter with the charging power required by the XR host, the step further includes: When the charging power input by the power adapter is not lower than the charging power required by the XR host, the first charging switch connected between the current input terminal and the first charging management circuit is controlled to be turned on, and the first charging management circuit is controlled to perform step-up and step-down processing on the obtained input current to generate a first charging current and provide the charging power required by the XR host to the XR host through the output connector port for charging.

17. The headband device charging control method according to claim 16, characterized in that: The steps of charging the battery cell specifically include: When the charging power input by the power adapter is not less than the charging power required by the XR host, determine whether the charging power input by the power adapter is less than the sum of the charging power required by the XR host and the charging power required by the battery cell; When the charging power input by the power adapter is not lower than the charging power required by the XR host and lower than the sum of the charging power required by the XR host and the charging power required by the battery cell, the second charging management circuit is controlled to perform step-up and step-down processing on the obtained input current, generate a second charging current, and provide the battery cell of the headband device with the battery charging power corresponding to the power difference between the charging power input by the power adapter and the charging power required by the XR host for charging.

18. The headband device charging control method according to claim 17, characterized in that: The method further includes determining whether the charging power input by the power adapter is lower than the sum of the charging power required by the XR host and the charging power required by the battery cell: When the charging power input by the power adapter is not less than the charging power required by the XR host and not less than the sum of the charging power required by the XR host and the charging power required by the battery cell, the second charging management circuit is controlled to perform step-up and step-down processing on the obtained input current, generate a second charging current and provide the charging power required by the battery cell to charge the battery cell of the headband device.

19. The headband device charging control method according to claim 9, characterized in that: The XR host charging step further includes: When the XR host completes charging, the first charging switch connected between the current input terminal and the first charging management circuit is controlled to be turned off to stop charging the XR host.

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