VR equipment, VR host and external battery box

Abstract

The embodiment of the utility model belongs to the technical field of electronic equipment, and provides VR equipment, a VR host and an external battery box. The VR equipment comprises an external battery box and a VR host, the external battery box and the VR host can be connected through a universal connecting line, and two ends of the universal connecting line are respectively a TYPE-C connector and a TYPE-A connector. The first controller and the electronic switch in the VR host are connected through the universal USB bus and the first single bus, so that the first single bus is switched on when the TYPE-C interface of the VR host is connected to the external battery box, the external battery box supplies power to the VR host, the universal serial bus is switched on when the TYPE-C interface of the VR host is connected to other devices, and universality is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of electronic equipment, and more specifically, to a VR device, a VR host, and an external battery box. Background Art

[0002] At present, virtual reality (VR) head-mounted devices (hereinafter referred to as VR devices) are basically all-in-one devices. Since VR devices have high computing power, which leads to high power consumption, the battery capacity of VR devices is relatively large, for example, greater than 6000mAh (milliampere-hour), resulting in a large size and weight of VR devices. And due to its high power consumption, the heat generated by VR devices is relatively large, which is not conducive to users wearing them for a long time.

[0003] In order to reduce the weight of VR devices and solve the problem that the high heat generation makes it difficult for users to wear and use the device for a long time, the VR host of the VR device can be separated from the battery, thereby reducing the weight of the VR host and separating the heat generated by the battery when working from the VR host, thereby reducing the heat of the VR host.

[0004] So, how to connect the external battery to the VR host to achieve power supply is an urgent problem to be solved. Utility Model Content

[0005] The embodiments of the present application provide a VR device, a VR host and an external battery box, which can be used to connect the external battery box to the VR host to achieve power supply.

[0006] In a first aspect, an embodiment of the present application provides a VR device, including:

[0007] An external battery box is configured to supply power to the VR host when connected to the VR host through a target connection line; wherein one end of the target connection line is a TYPE-C connector that can be connected to the TYPE-C interface of the VR host, and the other end of the target connection line is a TYPE-A connector that can be connected to the TYPE-A interface of the external battery box;

[0008] A VR host, comprising a first controller, an electronic switch, a TYPE-C interface and a power management chip; wherein the electronic switch is connected to the first controller via a universal serial bus and a first single bus respectively; each time the VR host is powered on, the universal serial bus is turned on; the electronic switch is connected to the TYPE-C interface; the power management chip is connected to the first controller and the TYPE-C interface respectively;

[0009] Wherein, the first controller is configured to: control the electronic switch to connect to the universal serial bus or the first single bus; when the first single bus is connected, control the external battery box to supply power to the VR host through the power management chip.

[0010] In this embodiment, the VR device includes an external battery box and a VR host, and the two can be connected via a universal connection line, wherein the two ends of the universal connection line are a TYPE-C connector and a TYPE-A connector respectively. The first controller in the VR host is connected to the electronic switch via a universal serial bus and a first single bus, so that when the TYPE-C interface of the VR host is connected to the external battery box, the first single bus is connected to enable the external battery box to power the VR host, and when the TYPE-C interface of the VR host is connected to other devices, the universal serial bus is connected, thereby improving versatility.

[0011] In some embodiments of the present application, the external battery box includes a battery, a boost circuit, a second controller and a TYPE-A interface;

[0012] Wherein, the boost circuit is connected to the battery, the TYPE-A interface and the second controller respectively;

[0013] The second controller is configured to control the boost circuit to boost the battery voltage output by the battery and output a target voltage to the TYPE-A interface so that the external battery box can power the VR host.

[0014] In this embodiment, the VR host is powered by a boost circuit based on the battery voltage.

[0015] In some embodiments of the present application, the second controller is connected to the TYPE-A interface via a second single bus, and the second controller is further configured as:

[0016] receiving, through the second single bus, an information reading command sent by the first controller through the first single bus;

[0017] Acquire charging information of the external battery box, where the charging information includes one or more of battery power, battery temperature, charging time already performed, and estimated remaining charging time;

[0018] The charging information is sent to the first controller through the second single bus.

[0019] In this embodiment, the second controller can communicate with the first controller through the first single bus and the second single bus to obtain the charging information.

[0020] In a second aspect, the present application provides a VR host, including:

[0021] The TYPE-C interface is configured to be connected to an external device, wherein the external device is a USB device, a first charging device or an external battery box;

[0022] An electronic switch, whose input end is connected to the TYPE-C interface, and whose output end is respectively connected to the universal serial bus and the first single bus and the first controller, and is configured to connect the universal serial bus or the first single bus; and to connect the universal serial bus each time the VR host is powered on;

[0023] a power management chip, connected to the first controller and the TYPE-C interface respectively, and configured to supply power to the first controller based on an input voltage of the TYPE-C interface;

[0024] The first controller is configured to control the electronic switch to connect to the universal serial bus or the first single bus; when the first single bus is connected, the external battery box is controlled by the power management chip to supply power to the VR host.

[0025] In this embodiment, the VR host can be connected to an external battery box or other charging device through a TYPE-C interface to achieve power supply, thereby improving versatility.

[0026] In some embodiments of the present application, the general purpose input / output GPIO interface of the first controller is connected to the control pin of the electronic switch;

[0027] The first controller is configured as follows:

[0028] When it is detected that the input voltage of the TYPE-C interface is the target voltage, the electronic switch is controlled through the GPIO interface to connect the first single bus;

[0029] Identify, through the first single bus, whether the device connected to the TYPE-C interface is the external battery box;

[0030] If yes, the power management chip is controlled to supply power to the VR host based on the target voltage.

[0031] In this embodiment, the first controller can identify whether the connected device is an external battery box through the input voltage of the TYPE-C interface and the first single bus. If so, the external battery box can be controlled to power the VR host.

[0032] In some embodiments of the present application, the first controller is configured as follows:

[0033] When it is detected that the input voltage of the TYPE-C interface is less than the target voltage, identifying by the electronic switch whether the device connected to the TYPE-C interface is the first charging device;

[0034] If so, the power management chip is controlled to power the VR host based on the input voltage of the TYPE-C interface.

[0035] In this embodiment, if the device connected to the TYPE-C interface is not an external battery box but a first charger, the VR host can also be powered based on the first charger, thereby improving the charging versatility of the VR host.

[0036] In a third aspect, the present application provides an external battery box, comprising:

[0037] Battery;

[0038] TYPE-A interface, configured to connect to the device to be charged;

[0039] A boost circuit, connected to the battery and the TYPE-A interface respectively;

[0040] The second controller is connected to the boost circuit and to the TYPE-A interface via a second single bus, and is configured to control the boost circuit to boost the battery voltage output by the battery so as to output a target voltage to the TYPE-A interface to power the device to be charged.

[0041] In this embodiment, the external battery box supplies power to the connected device to be charged based on the battery voltage through a boost circuit. The device to be charged may be a VR host, and power is supplied to the VR host through a target connection line, thereby improving versatility.

[0042] In some embodiments of the present application, the second controller is configured as follows:

[0043] If the output voltage of the TYPE-A interface is the target voltage, then when the output current of the TYPE-A interface is within a preset current range, connecting the second single bus;

[0044] Identify through the second single bus whether the device to be charged connected to the TYPE-A interface is a VR host;

[0045] If the device to be charged is the VR host, the working mode is entered to enable the VR host to communicate with the external battery box.

[0046] In this embodiment, the second controller can identify whether the connected device to be charged is a VR device through the output voltage of the second single bus and the TYPE-A interface. If so, the second controller can enter the working mode to achieve communication with the VR host.

[0047] In some embodiments of the present application, if the output current of the TYPE-A interface is greater than the upper limit value of the preset current range, if the device to be charged is not the VR host, the output current of the TYPE-A interface is less than the lower limit value of the preset current range, or the battery voltage output by the battery is less than the preset voltage value, the second controller is configured to: enter a sleep state.

[0048] In this embodiment, when the device to be charged is not a VR device, the output current of the TYPE-A interface is large, or the battery voltage output by the battery is small, the second controller can enter a sleep state, putting the external battery box in a low power consumption mode to reduce battery capacity consumption.

[0049] In some embodiments of the present application, the second controller is further configured to:

[0050] If the output current of the TYPE-A interface is greater than the upper limit of the preset current range, the boost circuit is controlled to be disconnected, and the boost circuit is connected after a preset time;

[0051] If the output current of the TYPE-A interface after the boost circuit is turned on is less than or equal to the upper limit value, the boost circuit is controlled to remain turned on.

[0052] In this embodiment, when the output current of the TYPE-A interface is large, it indicates that an overcurrent occurs, and the boost circuit can be controlled to be disconnected to stop power supply, thereby achieving the purpose of protecting the external battery box. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the implementation methods in the embodiments of the present application or the related technologies, the following is a brief introduction to the drawings required for use in the embodiments or the related technology descriptions. Obviously, the drawings described below are some embodiments of the present application, and a person skilled in the art can also obtain other drawings based on these drawings.

[0054] Figure 1 A schematic diagram of a TYPE-C connector as an example of this application;

[0055] Figure 2 A schematic diagram of a TYPE-A connector as exemplified in this application;

[0056] Figure 3 A structural schematic diagram of a VR device provided in an embodiment of the present application;

[0057] Figure 4 A schematic diagram of a target connection line 40 of an example of the present application;

[0058] Figure 5 A structural schematic diagram of a VR device provided in an embodiment of the present application;

[0059] Figure 6 A structural diagram of a VR host provided in an embodiment of the present application;

[0060] Figure 7 A circuit structure diagram of a VR host 30 used as an example in this application;

[0061] Figure 8 A schematic diagram of the structure of an external battery box 20 provided in an embodiment of the present application;

[0062] Fig. 9 A schematic diagram of the structure of an external battery box 20 provided in an embodiment of the present application;

[0063] Fig.10 A schematic diagram of the structure of another external battery box 20 provided in an embodiment of the present application.

[0064] Description of reference numerals:

[0065] 10-VR equipment; 20-external battery box;

[0066] 30-VR host; 40-target connection line;

[0067] 301-first controller; 302-electronic switch;

[0068] 303-TYPE-C interface; 304-power management chip;

[0069] 201-battery; 202-boost circuit;

[0070] 203-second controller; 204-TYPE-A interface;

[0071] 205- coulomb meter; 206- current detection circuit;

[0072] 207-charging interface; 208-charging circuit. DETAILED DESCRIPTION

[0073] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0074] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their ordinary and common meanings.

[0075] In addition, the terms "include" and "have" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such products or devices.

[0076] VR technology is increasingly used in people's daily lives and work. VR devices are basically head-mounted devices. In order to increase the user's usage time (i.e., battery life), the battery capacity is relatively large, which leads to a large size and weight of VR devices. Wearing it on the head for a long time, on the one hand, the weight puts a heavy burden on the head. On the other hand, VR devices consume a lot of power, and the head will generate a lot of heat if used for a long time. Among them, the heat of the battery itself is also an important heat source. To this end, the VR host of the VR device can be separated from the battery, thereby reducing the weight of the VR host, and the heat generated by the battery when working is separated from the VR host, reducing the heat of the VR host.

[0077] Currently, there is a solution to separate the VR host from the battery, but it is necessary to set up a dedicated interface on the VR host and connect the VR host to the battery through a dedicated connection line to achieve power supply, which makes its versatility poor.

[0078] So, how to connect the external battery to the VR host to achieve power supply is an urgent problem to be solved.

[0079] Therefore, the present application provides a VR device, including an external battery box and a VR host, which can be connected via a universal connection line, wherein the two ends of the universal connection line are a TYPE-C connector and a TYPE-A connector respectively. The controller in the VR host is connected to the electronic switch via a universal serial bus and a first single bus, so that when the TYPE-C interface of the VR host is connected to the external battery box, the first single bus is connected to enable the external battery box to power the VR host, and when the TYPE-C interface of the VR host is connected to other devices, the universal serial bus is connected, thereby improving versatility.

[0080] In the embodiment of the present application, the Universal Serial Bus (USB) may also be referred to as a USB bus.

[0081] In the embodiment of the present application, the TYPE-C connector refers to a USB Type-C connector, such as Figure 1 As shown, Figure 1 A schematic diagram of a TYPE-C connector is shown in the example of this application. Accordingly, a TYPE-C interface refers to an interface that is compatible with a TYPE-C connector. TYPE-A connector USB TYPE-A connector, such as Figure 2 As shown, Figure 2 This is a schematic diagram of a TYPE-A connector exemplified in this application. Accordingly, a TYPE-A interface refers to an interface that is compatible with a TYPE-A connector.

[0082] The technical solution of the present application is described in detail below in conjunction with specific embodiments. The following specific embodiments can be combined with each other or exist independently. The same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0083] Figure 3 A structural diagram of a VR device provided in an embodiment of the present application is shown in FIG. Figure 3 As shown, the VR device 10 includes an external battery box 20 and a VR host 30.

[0084] The external battery box 20 and the VR host 30 can be connected through the target connection line 40. Specifically, the target connection line 40 has a TYPE-C connector that can be connected to the TYPE-C interface of the VR host 30, and the other end of the target connection line 40 is a TYPE-A connector that can be connected to the TYPE-A interface of the external battery box 20. Figure 4 , Figure 4 It is a schematic diagram of a target connection line 40 according to an example of the present application.

[0085] The external battery box 20 is configured to supply power to the VR host 30 when connected to the VR host 30 via the target connection line 40 .

[0086] The VR host 30 includes a first controller 301, an electronic switch 302, a TYPE-C interface 303 and a power management chip 304. The electronic switch 302 is connected to the first controller 301 through a universal serial bus and a first single bus (1-WIRE) respectively. Each time the VR host 30 is powered on, the universal serial bus is turned on. The electronic switch 302 is connected to the TYPE-C interface 303. The power management chip 304 is connected to the first controller 301 and the TYPE-C interface 303 respectively.

[0087] The first controller 301 is configured to control the electronic switch 302 to connect the universal serial bus or the first single bus. When the first single bus is connected, the power management chip 304 controls the external battery box 20 to supply power to the VR host 30.

[0088] In a possible implementation, when the first single bus is connected, the universal serial bus is disconnected, and the first controller 301 can communicate with the external battery box 20 through the first single bus, for example, to obtain charging information.

[0089] In a possible implementation, if the universal serial bus is connected and the first single bus is disconnected, the device connected to the TYPE-C interface 303 is a USB device or a first charging device, etc. At this time, the VR host 30 can be charged by the first charging device, or data can be read and written by the USB device. Exemplarily, the USB device can be a read-write device such as a U disk, and the first charging device can be a USB power bank that outputs a 5V DC voltage.

[0090] In a possible implementation, the universal serial bus may be, for example, USB 2.0.

[0091] In this embodiment, the VR device includes an external battery box and a VR host, and the two can be connected via a universal connection line, wherein the two ends of the universal connection line are a TYPE-C connector and a TYPE-A connector respectively. The first controller in the VR host is connected to the electronic switch via a universal serial bus and a first single bus, so that when the TYPE-C interface of the VR host is connected to the external battery box, the first single bus is connected to enable the external battery box to power the VR host, and when the TYPE-C interface of the VR host is connected to other devices, the universal serial bus is connected, thereby improving versatility.

[0092] Based on the above embodiments, Figure 5 A structural diagram of a VR device provided in an embodiment of the present application is shown in FIG. Figure 4 As shown, the external battery box 20 includes a battery 201 , a boost circuit 202 , a second controller 203 and a TYPE-A interface 204 .

[0093] The boost circuit 202 is connected to the battery 201 , the TYPE-A interface 204 and the second controller 203 respectively.

[0094] The second controller 203 is configured to control the boost circuit 202 to boost the battery voltage output by the battery 201 , and output a target voltage to the TYPE-A interface 204 , so that the external battery box 20 supplies power to the VR host 30 .

[0095] In this embodiment, when the VR host 30 is connected to the external battery box 20 through the target connection line 40, the external battery box 20 can supply power to the VR host 30 based on the battery voltage output by the battery.

[0096] For the specific structure of the boost circuit 202, reference may be made to the circuit with a boost function in the related art, and this application will not elaborate on it any more.

[0097] In one possible implementation, Figure 5 As shown, the second controller 203 is connected to the TYPE-A interface 204 via a second single bus. The second controller 203 is further configured as:

[0098] The information read command sent by the first controller 301 through the first single bus is received through the second single bus.

[0099] The charging information of the external battery box 20 is obtained, and the charging information includes one or more of the battery power, battery temperature, charging time already performed, and estimated remaining charging time.

[0100] The charging information is sent to the first controller 301 via the second single bus.

[0101] In this embodiment, the second controller 203 can communicate with the first controller 301 through the first single bus and the second single bus to obtain the charging information.

[0102] Exemplarily, the first controller 301 can work in an interrupt mode, and the first controller 301 can send an interrupt signal to the second controller 203, so that when the external battery box 20 is in a dormant state, it can wake up when receiving the interrupt signal, and then communicate through the first single bus and the second single bus. For example, after sending the interrupt signal, the first controller 301 can send an information read command through the first single bus, and then the second controller can obtain the information read command through the second single bus, and send the obtained charging information to the first controller 301 through the second single bus, and the first controller 301 can receive the charging information through the first single bus. Sending an interrupt signal before communication can improve the reliability of communication between the first controller 301 and the second controller 203.

[0103] Communication is achieved through interrupt signals, the first single bus and the second single bus, so that the VR host 30 and the external battery box 20 can be in a dormant state to save power consumption. Exemplarily, the first controller 301 can be in a dormant state and send an interrupt signal after waking up after receiving an information acquisition instruction, wherein the signal acquisition instruction can be, for example, an instruction from a user through voice, touch buttons, etc., or it can be generated after the VR host 30 is connected to the external battery box 20 for a preset period of time.

[0104] In a possible implementation, the interrupt signal can be sent through an interrupt signal line connected between the first controller 301 and the electronic switch 302. When the electronic switch 302 is connected to the first single bus, the interrupt signal line is turned on, so that the first controller 301 can send an interrupt signal through the interrupt signal line. Figure 7 .

[0105] Figure 6 A schematic diagram of the structure of a VR host provided in an embodiment of the present application is shown in FIG. Figure 6 As shown, the VR host 30 includes a first controller 301 , an electronic switch 302 , a TYPE-C interface 303 and a power management chip 304 .

[0106] The TYPE-C interface 303 is configured to be connected to an external device, which is a USB device, a first charging device or an external battery box 20 .

[0107] The electronic switch 302 has an input end connected to the TYPE-C interface 303, and an output end connected to the first controller 301 via the universal serial bus and the first single bus, respectively. The electronic switch 302 is configured to connect the universal serial bus or the first single bus; each time the VR host 30 is powered on, the universal serial bus is turned on.

[0108] The power management chip 304 is connected to the first controller and the TYPE-C interface 303 respectively, and is configured to supply power to the first controller 301 based on the input voltage of the TYPE-C interface 303 .

[0109] The first controller 301 is configured to control the electronic switch 302 to connect to the universal serial bus or the first single bus. When the first single bus is connected, the external battery box 20 is controlled by the power management chip 304 to supply power to the VR host 30.

[0110] In this embodiment, the VR host 30 can be connected to an external battery box or other charging device through a TYPE-C interface to achieve power supply, thereby improving versatility.

[0111] In a possible implementation, the electronic switch 302 may be a single-pole double-throw switch supporting USB 2.0.

[0112] Figure 7 This is a circuit structure diagram of a VR host 30 exemplified in this application, refer to Figure 7 The general-purpose input / output (GPIO) interface of the first controller 301 is connected to the control pin (SEL) of the electronic switch 302, and the first controller 301 is configured as follows:

[0113] When it is detected that the input voltage (VBUS) of the TYPE-C interface 204 is the target voltage, the electronic switch 302 is controlled to connect the first single bus through the GPIO interface. The first single bus is used to identify whether the device connected to the TYPE-C interface 204 is an external battery box 20. If the device connected to the TYPE-C interface 204 is an external battery box 20, the power management chip 304 is controlled to supply power to the VR host 30 based on the target voltage.

[0114] Exemplarily, the first controller 301 identifies whether the device connected to the TYPE-C interface 204 is the external battery box 20 through the first single bus, for example, the first controller 301 sends a handshake signal through the first single bus, and if a corresponding reply signal is received after sending the handshake signal, it can be determined that the device connected to the TYPE-C interface 204 is the external battery box 20. The reply signal can be, for example, sent through the second single bus after being received by the second controller 203 through the second single bus.

[0115] In a possible implementation, the battery 201 of the external battery box 20 may include two battery cells connected in series, wherein the voltage of each battery cell is generally between 3.5V and 4.35V, and the voltage of the two battery cells connected in series is 7V to 8.7V. Exemplarily, the target voltage may be 9V, and the external battery box 20 may boost the battery voltage of the battery 201 to 9V through the boost circuit 202, which may reduce the power loss during the boost process, and since the output voltage of an ordinary power bank is generally 5V, setting the target voltage to 9V is conducive to identifying that when a device is detected to be connected to the VR host 30, it is the external battery box 20 or other device that is connected.

[0116] exist Figure 7 In the TYPE-C interface 303, SPMI is a serial peripheral interface (Serial Peripheral Interface), D1+ / D2+ is a USB2.0 positive differential signal pin, D1- / D2- is a USB2.0 negative differential signal pin, VBUS is a power bus pin, and CC is a configuration channel pin. The SEL pin in the electronic switch 302 is a control pin, GND is a ground pin, and R1 is a resistor. The S-WIRE_INT in the first controller 301 is an interrupt signal line, 1-WIRE is a first single bus, and USB2.0 is an example of a universal serial bus.

[0117] In a possible implementation, the second controller 203 can detect the input voltage of the TYPE-C interface 204. If it is detected that the voltage of the TYPE-C interface 204 is not 0V, it can first determine whether the input voltage is less than the target voltage (for example, 9V). If so, it means that the device connected at this time is other devices, such as a USB device or a first charging device (then the input voltage can be 5V). If the input voltage is not less than 5V, it can be determined that the device connected at this time is an external battery box 20, and the input voltage can be 9V.

[0118] Furthermore, if it is determined that the connected device is another device, the second controller 203 can keep the universal serial bus connected (because when the VR host is powered on, the electronic switch is connected to the universal serial bus by default), and detect whether the other device is a first charging device through the D+ and D- pins of the electronic switch 302. If it is a first charging device, the power management chip 304 can be controlled to power the VR host 30 based on the input voltage of the TYPE-C interface 303.

[0119] In one possible implementation, if the device connected to the TYPE-C interface 303 is not the first charging device, it means that the device connected at this time is a USB device, etc. The first controller 301 can control the input current of the TYPE-C interface 303 to be less than a preset current value. For example, the preset current value can be 500mA (milliamperes) to achieve the purpose of protecting the VR host 30.

[0120] Figure 8 A schematic diagram of the structure of an external battery box 20 provided in an embodiment of the present application is shown in FIG. Figure 8 As shown, the external battery box 20 includes a battery 201 , a boost circuit 202 , a second controller 203 and a TYPE-A interface 204 .

[0121] The boost circuit 202 is respectively connected to the battery 201 and the TYPE-A interface 204. The second controller 203 is connected to the boost circuit 202 and is connected to the TYPE-A interface 204 via a second single bus.

[0122] The TYPE-A interface 204 is configured to be connected to a device to be charged.

[0123] The second controller 203 is configured to control the boost circuit 202 to boost the battery voltage output by the battery 201 , so as to output a target voltage to the TYPE-A interface 204 to supply power to the device to be charged.

[0124] In this embodiment, the external battery box 20 supplies power to the connected device to be charged based on the battery voltage through the boost circuit 202. The device to be charged may be a VR host, and the VR host 30 is powered through the target connection line to improve versatility.

[0125] In a possible implementation, the second controller 203 is configured as follows:

[0126] If the output voltage of the TYPE-A interface 204 is the target voltage, the second single bus is connected when the output current of the TYPE-A interface 204 is within the preset current range. The second single bus is used to identify whether the device to be charged connected to the TYPE-A interface is the VR host 30. If the device to be charged is the VR host 30, the working mode is entered to enable the VR host 30 to communicate with the external battery box 20.

[0127] The second controller 203 entering the working mode means that the second controller 203 can communicate with the first controller 301 .

[0128] Fig. 9 A schematic diagram of the structure of an external battery box 20 provided in an embodiment of the present application is shown in FIG. Fig. 9 As shown, the second controller 203 can be connected to the battery 201 through the coulomb meter 205. The second controller 203 can obtain the battery voltage of the battery 201 through the coulomb meter 205. For example, when the battery voltage is greater than a preset voltage value (e.g., 7V), the second controller 203 can control the boost circuit 202 to boost the voltage so that the output voltage of the TYPE-A interface 204 is the target voltage.

[0129] Exemplarily, the second controller 203 may obtain the battery voltage once every certain period of time to prevent the power supply of the VR host from being affected by the battery being exhausted.

[0130] Exemplarily, the second controller 203 identifies whether the device to be charged connected to the TYPE-A interface 204 is a VR host through the second single bus, for example, the second controller 203 sends a handshake signal to the first controller 301 through the second single bus, and if a corresponding reply signal is received after sending the handshake signal, it can be determined that the device to be charged is a VR host. The reply signal can be sent by the first controller 301 through the first single bus.

[0131] In one possible implementation, if the device to be charged is not the VR host 30, the output current of the TYPE-A interface 204 is less than the lower limit of the preset current range, or the battery voltage output by the battery is less than the preset voltage value, the second controller can enter a sleep state, so that the external battery box is in a low power consumption mode, reducing the capacity consumption of the battery 201.

[0132] Exemplarily, the preset current range may be greater than or equal to 0.5 A and less than or equal to 3 A. The lower limit value of the preset current range may be 0.5A.

[0133] In a possible implementation, if the output current of the TYPE-A interface 204 is greater than the upper limit of the preset current range, the boost circuit 202 is controlled to be disconnected, and the boost circuit 202 is connected after a preset time. If the output current of the TYPE-A interface is less than or equal to the upper limit after the boost circuit 202 is connected, the boost circuit is controlled to remain connected. It can be understood that if the output current of the TYPE-A interface 204 is still greater than the upper limit of the preset current range after the boost circuit 202 is connected, the boost circuit 202 is disconnected. This is repeated until the output current of the TYPE-A interface is less than or equal to the upper limit, and the boost circuit 202 is controlled to remain connected.

[0134] It can be understood that controlling the boost circuit 202 to be disconnected means that the boost circuit does not work and the target voltage (eg, 9V) output is turned off.

[0135] Exemplarily, the second controller 203 can detect the output current of the TYPE-A interface 204 through the current detection circuit 206. For the specific structure of the current detection circuit 206, reference can be made to the circuit with current detection function in the related art, which will not be described in detail in this application.

[0136] exist Fig. 9 In the example, S_WIRE_INT is the interrupt signal line used to receive interrupt signals. D1+ / D2+ is the positive data pin, D1- / D2- is the negative data pin, and VBUS is the power bus pin.

[0137] In this embodiment, when the output current of the TYPE-A interface 204 is large, it indicates that an overcurrent occurs, and the boost circuit 202 can be controlled to be disconnected to stop power supply, thereby achieving the purpose of protecting the external battery box 20.

[0138] In one possible implementation, Fig.10 A schematic diagram of the structure of another external battery box 20 provided in an embodiment of the present application is shown in FIG. Fig.10 As shown, the external battery box 20 further includes a charging interface 207 and a charging circuit 208. The charging circuit 208 is connected to the charging interface 207, the second controller 203 and the battery 201 respectively.

[0139] For the specific structure of the charging circuit 208 , reference may be made to the circuit with charging control function in the related art, which will not be described in detail in this application.

[0140] Exemplarily, the charging interface 207 may be a TYPE-C interface. When the external battery box 20 is charging, the external power source may be connected through the charging interface 207 to charge the battery 201. When the external battery box 20 is supplying power, the device to be charged may be connected through the TYPE-C interface 204 to supply power to the device to be charged. By setting an interface different from the TYPE-C interface 204, it is convenient for users to distinguish the interface to be connected when different needs are met.

[0141] In a possible implementation, the first controller 301 may be a central processing unit (CPU), and the second controller 203 may be a microcontroller unit (MCU).

[0142] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0143] For ease of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are intended to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

[0144] In this application, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article indicates that the associated objects before and after are in an "or" relationship.

[0145] "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can mean: a, b, c, a and b, a and c, b and c, or a, b and c, where each of a, b, c can be an element itself or a set containing one or more elements.

[0146] In this application, "at least one" means one or more. "Multiple" means two or more. The first, second, etc. descriptions that appear in the embodiments of this application are only used for illustration and distinction of the described objects. There is no order, nor does it represent a special limitation on the number of devices in the embodiments of this application, and cannot constitute any limitation on the embodiments of this application. For example, the first threshold and the second threshold are only used to distinguish different thresholds, and do not represent the difference in size, priority or importance of the two thresholds.

[0147] In this application, "exemplary", "in some embodiments", "in other embodiments", etc. are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" in this application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of the word "exemplary" is intended to present concepts in a concrete way.

[0148] In this application, the terms “of”, “corresponding, relevant”, “corresponding” and “associated” may sometimes be used interchangeably. It should be noted that when the distinction between them is not emphasized, the meanings they intend to express are consistent.

Claims

1. A VR device, characterized in that: include: An external battery box is configured to supply power to the VR host when connected to the VR host through a target connection line; wherein one end of the target connection line is a TYPE-C connector that can be connected to the TYPE-C interface of the VR host, and the other end of the target connection line is a TYPE-A connector that can be connected to the TYPE-A interface of the external battery box; A VR host, comprising a first controller, an electronic switch, a TYPE-C interface and a power management chip; wherein the electronic switch is connected to the first controller via a universal serial bus and a first single bus respectively; each time the VR host is powered on, the universal serial bus is turned on; the electronic switch is connected to the TYPE-C interface; the power management chip is connected to the first controller and the TYPE-C interface respectively; Wherein, the first controller is configured to: control the electronic switch to connect to the universal serial bus or the first single bus; when the first single bus is connected, control the external battery box to supply power to the VR host through the power management chip.

2. The VR device according to claim 1, characterized in that: The external battery box includes a battery, a boost circuit, a second controller and a TYPE-A interface; Wherein, the boost circuit is connected to the battery, the TYPE-A interface and the second controller respectively; The second controller is configured to control the boost circuit to boost the battery voltage output by the battery and output a target voltage to the TYPE-A interface so that the external battery box can power the VR host.

3. The VR device according to claim 2, characterized in that: The second controller is connected to the TYPE-A interface via a second single bus, and the second controller is further configured as: receiving, through the second single bus, an information reading command sent by the first controller through the first single bus; Acquire charging information of the external battery box, where the charging information includes one or more of battery power, battery temperature, charging time already performed, and estimated remaining charging time; The charging information is sent to the first controller through the second single bus.

4. A VR host, characterized in that: include: The TYPE-C interface is configured to be connected to an external device, wherein the external device is a USB device, a first charging device or an external battery box; An electronic switch, whose input end is connected to the TYPE-C interface, and whose output ends are respectively connected to the universal serial bus and the first single bus and the first controller, and which is configured to connect the universal serial bus or the first single bus; Each time the VR host is powered on, turning on the universal serial bus; a power management chip, connected to the first controller and the TYPE-C interface respectively, and configured to supply power to the first controller based on an input voltage of the TYPE-C interface; The first controller is configured to control the electronic switch to connect to the universal serial bus or the first single bus; when the first single bus is connected, the external battery box is controlled by the power management chip to supply power to the VR host.

5. The VR host according to claim 4, characterized in that: The general purpose input / output GPIO interface of the first controller is connected to the control pin of the electronic switch; The first controller is configured as follows: When it is detected that the input voltage of the TYPE-C interface is the target voltage, the electronic switch is controlled through the GPIO interface to connect the first single bus; Identify, through the first single bus, whether the device connected to the TYPE-C interface is the external battery box; If yes, the power management chip is controlled to supply power to the VR host based on the target voltage.

6. The VR host according to claim 4, characterized in that: The first controller is configured as follows: When it is detected that the input voltage of the TYPE-C interface is less than the target voltage, identifying through the electronic switch whether the device connected to the TYPE-C interface is the first charging device; If so, the power management chip is controlled to power the VR host based on the input voltage of the TYPE-C interface.

7. An external battery box, characterized in that: include: Battery; TYPE-A interface, configured to connect to the device to be charged; A boost circuit, connected to the battery and the TYPE-A interface respectively; The second controller is connected to the boost circuit and to the TYPE-A interface via a second single bus, and is configured to control the boost circuit to boost the battery voltage output by the battery so as to output a target voltage to the TYPE-A interface to power the device to be charged.

8. The external battery box according to claim 7, characterized in that: The second controller is configured as follows: If the output voltage of the TYPE-A interface is the target voltage, then when the output current of the TYPE-A interface is within a preset current range, connecting the second single bus; Identify through the second single bus whether the device to be charged connected to the TYPE-A interface is a VR host; If the device to be charged is the VR host, the working mode is entered to enable the VR host to communicate with the external battery box.

9. The external battery box according to claim 7, characterized in that: If the output current of the TYPE-A interface is greater than the upper limit of the preset current range, if the device to be charged is not a VR host, the output current of the TYPE-A interface is less than the lower limit of the preset current range, or the battery voltage output by the battery is less than the preset voltage value, the second controller is configured to: enter a sleep state.

10. The external battery box according to claim 7, characterized in that: The second controller is further configured to: If the output current of the TYPE-A interface is greater than the upper limit of the preset current range, the boost circuit is controlled to be disconnected, and the boost circuit is connected after a preset time; If the output current of the TYPE-A interface after the boost circuit is turned on is less than or equal to the upper limit value, the boost circuit is controlled to remain turned on.

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