WO2017045416A1

WO2017045416A1 - Terminal usb interface setting method and terminal

Info

Publication number: WO2017045416A1
Application number: PCT/CN2016/082515
Authority: WO
Inventors: 胡东平
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-09-15
Filing date: 2016-05-18
Publication date: 2017-03-23
Also published as: CN106532795A

Abstract

A terminal USB interface setting method, comprising: a built-in battery of the terminal is powered by a first USB socket and a second USB socket of a terminal through a charging management circuit, wherein a power line of the first USB socket is connected to the charging management circuit; and a power line of the second USB socket is connected to the charging management circuit, and the charging management circuit is connected to the built-in battery. In this way, the present invention solves the problems that the limited electric quantity of a built-in battery of a terminal causes a short time of endurance and the charging of the terminal via a USB interface is slow, thereby prolonging the time of endurance of the terminal, and reducing the charging time of the terminal.

Description

Terminal USB interface setting method and terminal

Technical field

The present application relates to, but is not limited to, the field of communications, and in particular, to a terminal USB interface setting method and a terminal.

Background technique

Currently, mobile storage power, multi-universal serial bus (USB) interface computers, mobile terminals or other devices are widely used, but there are still many defects, including the following aspects:

Defect 1: Limited endurance, resulting in compulsory business interruption;

The current system architecture, when uploading and downloading high-speed data on the USB access network, the built-in battery is limited, which easily leads to insufficient endurance and forced interruption of the Internet service. The traditional solution is to increase the battery size, increase the battery capacity, and reduce the power consumption of the whole machine. However, increasing the battery capacity will inevitably lead to a large product size, which does not meet the original intention of the portable design of the terminal product; the effect of reducing the power consumption of the whole machine after the selection of the platform is very limited.

Defect 2: Long charging time, fast charging solution is complicated and costly;

The current system architecture, USB charging mainly depends on the following two methods: single USB2.0/USB3.0 interface, USB socket (also known as USB interface) AC (Alternating Current) adapter for charging. However, when charging with USB2.0/USB3.0 service port is only 500mA, the charging speed is very slow. If you need fast charging, you can only use AC adapter, which increases the cost of accessories. In addition, the current USB-based fast charging technology (for example, Qualcomm's solution, Fairchild's solution) adds complex algorithms to the charging chip and the AC adapter. The AC adapter and the charging chip need to be customized according to the algorithm protocol, and the technical solution is complicated. High hardware costs and the possibility of a technology monopoly.

In view of the related art, the limited capacity of the built-in battery of the terminal results in a short battery life and a slow charging of the terminal through the USB interface, and there is currently no effective solution.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The embodiment of the invention provides a terminal USB interface setting method and a terminal, so as to at least solve the problem that the battery of the terminal has limited battery life due to limited internal battery and slow USB charging.

According to an aspect of an embodiment of the present invention, a terminal is provided, including: a first universal serial bus (USB) socket, a second USB socket, a built-in battery, and a charging management circuit;

The power line of the first USB socket is connected to the charging management circuit;

a power line of the second USB socket is connected to the charging management circuit, the charging management circuit is connected to the built-in battery, and the first USB socket and the second USB socket pass the charging management circuit and act The built-in battery is powered.

Optionally, the charging management circuit includes: a first switching circuit, a second switching circuit, and a DC converter (DC/DC);

a power line of the first USB socket is connected to the first switch circuit, a power line of the second USB socket is connected to the second switch circuit, and the first switch circuit and the second switch circuit are connected in parallel Connected to the DC converter (DC/DC), the DC converter (DC/DC) is connected to the internal battery.

Optionally, the first switching circuit comprises a first diode and the second switching circuit comprises a second diode.

Optionally, the terminal further includes: a first USB switch;

The power cable of the second USB socket is connected to the first USB switch, and the first USB switch is connected to the charging management circuit, wherein the first USB switch receives the first control signal. In the case that the first USB socket and the second USB socket are configured to supply power to the internal battery in parallel, the first control signal is that the first USB socket and the second USB socket are Built-in battery powered indicator.

Optionally, the terminal further includes: a second USB switch and a step-up DC conversion (DC/DC) module;

The second USB switch is connected to the step-up DC conversion (DC/DC) module, and the step-up DC conversion (DC/DC) module is connected to the built-in battery, wherein the second USB switch After the switch receives the second control signal, the built-in battery boosts the power supply voltage of the internal battery through the step-up DC conversion (DC/DC) module and inputs the second USB switch to the second USB switch. The second USB switch inputs the power voltage to the second USB socket, and the second control signal is an indication signal that the internal battery supplies power to an external device of the terminal through the second USB socket.

Optionally, the terminal further includes: a multi-port data forwarder;

a data line of the first USB socket is connected to the multi-port data repeater; a data line of the second USB socket is connected to the multi-port data repeater, wherein the first USB socket and the first The two USB sockets perform data transmission through the multi-port data repeater.

Optionally, the terminal further includes: a third USB switch;

The data line of the second USB socket is connected to the third USB switch, and the third USB switch is connected to the multi-port data repeater, wherein the third USB switch receives the third In the case of a control signal, the second USB socket performs data transmission through the third USB switch and the multi-port data repeater, and the third control signal is used to indicate that the terminal passes the second USB The socket transmits data to and from an external device.

Optionally, the multi-port data repeater comprises a USB Expansion Hub (HUB).

According to another aspect of the embodiments of the present invention, a terminal USB interface setting method is further provided, including:

The first USB socket and the second USB socket are powered by a built-in battery of the charging management circuit and the behavior terminal, wherein a power line of the first USB socket is connected to the charging management circuit; and a power line of the second USB socket is The charge management circuit is connected, and the charge management circuit is connected to the internal battery.

Optionally, the first USB socket and the second USB socket are powered by the charging management circuit and acting on the internal battery of the terminal, including:

The built-in battery is powered by a DC converter (DC/DC) of the charging management circuit, wherein a power line of the first USB socket is connected to a first switch circuit, and a power line of the second USB socket is a second switch circuit connected, the first switch circuit and the second switch circuit being connected in parallel with the DC converter (DC/DC), the DC converter (DC/DC) and the inner Set the battery connection.

Optionally, the method further includes: when the first USB switch is received, the first USB socket and the second USB socket supply power to the internal battery in parallel, the first a control signal is an indication signal that the first USB socket and the second USB socket supply power to the internal battery, wherein a power line of the second USB socket is connected to the first USB switch, The first USB switch is connected to the charge management circuit.

Optionally, the method further includes: after the second USB switch receives the second control signal, the built-in battery boosts and inputs the power voltage of the internal battery through a step-up DC conversion (DC/DC) module The second USB switch, the second USB switch inputs the power voltage to the second USB socket, and the second control signal is the built-in battery through the second USB socket An indication signal for powering the external device of the terminal, wherein the second USB switch is connected to the step-up DC conversion (DC/DC) module, the step-up DC conversion (DC/DC) module and the built-in battery connection.

Optionally, the method further includes: the first USB socket and the second USB socket perform data transmission by using a multi-port data forwarder, wherein the data line of the first USB socket and the multi-port data a repeater connection; the data line of the second USB socket is connected to the multi-port data repeater.

Optionally, the method further includes: when the third USB switch receives the third control signal, the second USB socket performs data by using the third USB switch and the multi-port data forwarder. The third control signal is used to instruct the terminal to perform data transmission with the external device through the second USB socket, wherein the data line of the second USB socket is connected to the third USB switch. The third USB switch is connected to the multi-port data repeater.

The embodiment of the invention further provides a computer readable storage medium storing computer executable instructions, which are implemented when the computer executable instructions are executed.

According to the embodiment of the present invention, the first USB socket and the second USB socket of the terminal are powered by the charging management circuit and the built-in battery of the terminal, wherein the power cable of the first USB socket is connected to the charging management circuit; A power cord of the USB socket is connected to the charge management circuit, and the charge management circuit is connected to the built-in battery. In this way, the limited power of the built-in battery of the terminal is solved. The problem that the battery life is short and the terminal is slowly charged through the USB interface improves the terminal's battery life and shortens the terminal battery charging time.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

The drawings described herein are intended to provide a further understanding of the present application, and are intended to be a part of this application. In the drawing:

1 is a structural block diagram 1 of a USB connection of a terminal according to an embodiment of the present invention;

2 is a block diagram showing the structure of a charge management circuit according to an embodiment of the present invention;

3 is a structural block diagram 2 of a USB connection of a terminal according to an embodiment of the present invention;

4 is a structural block diagram 3 of a USB connection of a terminal according to an embodiment of the present invention;

FIG. 5 is a structural block diagram 4 of a USB connection of a terminal according to an embodiment of the present invention; FIG.

6 is a structural block diagram 5 of a USB connection of a terminal according to an embodiment of the present invention;

7 is a schematic diagram of a system framework of a mobile data terminal in the related art;

8 is a schematic diagram of a system framework of a mobile data terminal according to an alternative embodiment of the present application;

9 is a schematic diagram of an application scenario 1 according to an alternative embodiment of the present application;

FIG. 10 is a schematic diagram of an application scenario 2 according to an alternative embodiment of the present application; FIG.

11 is a schematic diagram of an application scenario 3 according to an alternative embodiment of the present application;

FIG. 12 is a schematic diagram of an application scenario 4 according to an alternative embodiment of the present application; FIG.

FIG. 13 is a schematic diagram of an application scenario 5 according to an alternative embodiment of the present application.

Embodiments of the invention

The present application will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It should be noted that the terms and claims in the specification and claims of the present application and the above drawings One, "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.

In this embodiment, a terminal is provided. FIG. 1 is a structural block diagram of a USB connection of a terminal according to an embodiment of the present invention. As shown in FIG. 1 , the terminal includes: a first USB socket 10 and a second USB socket 12 . , a built-in battery 14 and a charge management circuit 16;

The power cable of the first USB socket 10 is connected to the charging management circuit 16; the power cable of the second USB socket 12 is connected to the charging management circuit 16, and the charging management circuit 16 is connected to the built-in battery 14, the first USB The socket 10 and the second USB socket 12 pass through the charge management circuit 16 and act to power the internal battery 14.

Through the above device, the problem that the power of the built-in battery of the terminal is limited, the battery life is short, the terminal is charged slowly through the USB interface, the terminal life time is improved, and the terminal battery charging time is shortened.

In the present embodiment, FIG. 2 is a structural block diagram of a charge management circuit 16 according to an embodiment of the present invention. As shown in FIG. 2, the charge management circuit 16 includes: a first switch circuit 22, a second switch circuit 24, and a DC conversion. (DC/DC) 26;

The power line of the first USB socket 10 is connected to the first switch circuit 22. The power line of the second USB socket 12 is connected to the second switch circuit 24. The first switch circuit 22 and the second switch circuit 24 are connected in parallel. The DC converter (DC/DC) 26 is connected to the built-in battery 14.

The first switch circuit 22 can include a first diode, and the second switch circuit 24 can include a second diode. The first switch circuit 22 and the second switch circuit 24 can also be other single guides. Pass the device.

In this embodiment, FIG. 3 is a block diagram of a USB connection of a terminal according to an embodiment of the present invention. As shown in FIG. 3, the terminal further includes: a first USB switch 32;

The power cable of the second USB socket 12 is connected to the first USB switch 32. The first USB switch 32 is connected to the charge management circuit 16, wherein the first USB switch 32 receives the first control signal. In the case that the first USB socket 10 and the second USB socket 12 are configured to supply power to the internal battery 14 in parallel, the first control signal is the first USB socket 10 And the second USB socket 12 is an indication signal for supplying power to the internal battery 14. The first control signal may be a charging indication sent by the control module of the terminal after receiving the control signaling, or may be the first USB socket 10 and the first When the USB socket 12 turns on the charging power of the external device, the charging indication signal is triggered.

In this embodiment, FIG. 4 is a structural block diagram 3 of a USB connection of a terminal according to an embodiment of the present invention. The terminal further includes: a second USB switch 42 and a DC-DC converter module 44;

The second USB switch 42 is connected to the step-up DC conversion (DC/DC) module 44. The step-up DC conversion (DC/DC) module 44 is connected to the internal battery 14. The second USB switch 42 is connected. After receiving the second control signal, the built-in battery 14 boosts the power supply voltage of the internal battery 14 through the step-up DC conversion (DC/DC) module 44 and inputs the second USB switch to the second USB switch 42 The switch 42 inputs the power voltage to the second USB socket 12, and the second control signal is an indication signal that the internal battery 14 supplies power to the external device of the terminal through the second USB socket 12. The second control signal may be The power supply indication sent by the control module of the terminal after receiving the control signaling, or the power supply indication signal triggered when the second USB socket 12 is connected to the external device and the terminal acts as the mobile power source.

In this embodiment, FIG. 5 is a structural block diagram of a USB connection of a terminal according to an embodiment of the present invention, the terminal further includes: a multi-port data repeater 52;

The data line of the first USB socket 10 is connected to the multi-port data repeater 52; the data line of the second USB socket 12 is connected to the multi-port data repeater 52, wherein the first USB socket 10 and the second The USB socket 12 performs data transmission through the multi-port data repeater 52.

In this embodiment, FIG. 6 is a block diagram 5 of a USB connection of a terminal according to an embodiment of the present invention. As shown in FIG. 6, the terminal further includes: a third USB switch 62;

The data line of the second USB socket 12 is connected to the third USB switch 62, and the third USB switch 62 is connected to the multi-port data repeater 52, wherein the third USB switch 62 receives the third In the case of a control signal, the second USB socket 12 performs data transmission through the third USB switch 62 and the multi-port data repeater 52, and the third control signal is used to indicate that the terminal passes through the second USB socket 12 The external device performs data transmission, where the third control signal may be a data transmission indication sent by the control module of the terminal after receiving the control signaling, and However, the second USB socket 12 turns on the external device, and when the external device performs data transmission with the terminal, the triggered data outputs an indication signal.

In the present embodiment, the multi-port data repeater 52 includes a USB expansion hub (HUB), a multi-port repeater, and the like.

In the above embodiment, the first USB switch 32, the second USB switch 42 and the third USB switch 62 may be a switch to implement the functions of the foregoing embodiments, or may be implemented by different switch switches. Features.

The embodiment of the invention further provides a method for setting a terminal USB interface, including:

The first USB socket and the second USB socket are powered by the built-in battery of the charging management circuit and the behavior terminal, wherein the power line of the first USB socket is connected to the charging management circuit; the power line of the second USB socket and the charging management The circuit is connected, and the charge management circuit is connected to the built-in battery.

Through the above method, the problem that the power of the built-in battery of the terminal is limited, the battery life is short, the terminal is charged slowly through the USB interface, the terminal life time is improved, and the terminal battery charging time is shortened.

In this embodiment, the first USB socket and the second USB socket are powered by the charging management circuit and act as a built-in battery of the terminal, including:

The built-in battery is powered by a DC converter (DC/DC) of the charging management circuit, wherein a power line of the first USB socket is connected to the first switch circuit, and a power line and a second switch circuit of the second USB socket Connected, the first switching circuit and the second switching circuit are connected in parallel with the DC converter (DC/DC), and the DC converter (DC/DC) is connected to the internal battery.

In this embodiment, when the first USB switch is received, the first USB socket and the second USB socket supply power to the internal battery in parallel, and the first control signal is the first USB. The power socket of the second USB socket is connected to the first USB switch, and the first USB switch is connected to the charging management circuit, the first USB switch A control signal may be a charging indication sent by the control module of the terminal after receiving the control signaling, or may be a charging indication signal triggered when the first USB socket and the second USB socket turn on the charging power of the external device.

In this embodiment, after the second USB switch receives the second control signal, the internal battery boosts the power voltage of the internal battery through a step-up DC conversion (DC/DC) module and inputs the second USB switch. The second USB switch inputs the power voltage to the second USB socket, and the second control signal is an indication signal that the internal battery supplies power to the external device of the terminal through the second USB socket, wherein the second The USB switch is connected to the step-up DC conversion (DC/DC) module, and the step-up DC conversion (DC/DC) module is connected to the built-in battery, and the second control signal may be that the control module of the terminal receives the control signaling. The power supply indication sent later may also be a power supply indication signal triggered when the second USB socket is connected to an external device and the terminal acts as a mobile power source.

In this embodiment, the first USB socket and the second USB socket perform data transmission through a multi-port data repeater, wherein a data line of the first USB socket is connected to the multi-port data forwarder; the second USB The data line of the socket is connected to the multi-port data repeater.

In this embodiment, in a case that the third USB switch receives the third control signal, the second USB socket performs data transmission by using the third USB switch and the multi-port data repeater, the third control signal. Instructing the terminal to perform data transmission with the external device through the second USB socket, wherein the data line of the second USB socket is connected to the third USB switch, the third USB switch and the multi-port data forwarder The third control signal may be a data transmission indication sent by the control module of the terminal after receiving the control signaling, or may be the data triggered by the second USB socket when the external device and the terminal perform data transmission. The indication signal is output.

The embodiments of the present invention are described in detail below with reference to alternative embodiments and embodiments.

In the related art, in addition to the defects 1 and 2 existing in the USB interface of the terminal mentioned above, the related art has the following drawbacks:

Defect 3: The hardware additional appreciation ability is very low, there is room for improvement.

The currently described mobile data terminal itself has included a lithium battery, a lithium battery charge management, a USB socket, and its physical interface. Lithium battery can only supply power to the system, can not achieve external functions, does not have the function of charging treasure, can not access the network through USB while external power supply, there is no serial charging / power supply function, so, bring a lot of business travel and use inconvenient. Therefore, the optional embodiment of the present application solves the above problem by optimizing the design of the charging management circuit and designing an extended USB external interface, which can be solved under certain scenarios and user environments.

Defect 4: The wired high-speed data transmission interface is insufficient.

Some environments that require data transmission confidentiality and a harsh wireless transmission environment necessarily require the use of multiple USB interfaces for high-speed wired communication to achieve network access and data transmission.

7 is a schematic diagram of a system framework of a mobile data terminal in the related art. As shown in FIG. 7, the mobile data terminal includes the following modules: a baseband signal processing unit (BB module), a 3G/4G radio frequency signal processing unit (RF module), and a wireless Wi- Fi functional unit (Wi-Fi module), PMU power management module, rechargeable lithium battery.

8 is a schematic diagram of a system framework of a mobile data terminal according to an alternative embodiment of the present application. As shown in FIG. 8, the mobile data terminal further includes a lithium battery charging management circuit. The charging management circuit has two charging power sources compared to related technologies. Input, two power inputs are connected in parallel to the input of the internal DC/DC through a series isolation diode, and the output of the DC/DC acts to provide power energy; in addition, the mobile data terminal also includes a USB socket 1 and its interface circuit, USB socket 2 and its interface circuit, USB switch, step-up DC/DC module, and USB expansion HUB circuit;

Among them, the BB module, the RF module, the Wi-Fi module circuit, the PMU power management module, and the lithium battery and its circuit connection are mature intrinsic technologies, as shown in the dotted line of Fig. 8, the connection mode of the module is not elaborated.

As shown in Figure 8, the detailed circuit/unit connection is as follows: The USB interface to which the BB module belongs is connected to the USB interface corresponding to the USB extension HUB circuit through a PCB (Printed Circuit Board) trace, and the USB extension is connected. The other two USB interfaces to which the HUB circuit belongs are respectively connected to the corresponding pins of the USB socket 1, and are connected to each other through the USB switch and the data lines corresponding to the USB socket 2. The 5V power cord input by the USB socket 1 and the corresponding pin IN_1 of the lithium battery charging management circuit are connected to each other, and the 5V power cord input by the USB socket 2 is first input to the USB switching switch, and the two switches are output through the USB switching switch, all the way P_L and the lithium battery The charging management circuit is connected to realize the charging function of the external power supply to the built-in power supply to improve the endurance of the product, and the other P_H is connected to the output of the step-up DC/DC module, and the input of the step-up DC/DC module is connected to the built-in lithium battery. The positive end, the built-in lithium battery provides a power port that satisfies the USB interface specification to the power port of the USB socket 2 through the step-up DC/DC module, and realizes the function of the "charging treasure" function or the power source of the mobile data terminal;

Wherein, the charging power input of the charging management circuit turns the 5V power supply through the internal DC/DC module The output is 2.8V to 4.35V, one channel is provided to the PMU power management module, and the other is connected to the built-in lithium battery to provide access for the lithium battery charging; two inputs are connected from the USB socket 1 to the 5V power pin input and charging management The IN_1 ports of the circuit are connected to each other, and the other is connected to the 5V power pin P_L of the USB switch and the IN_2 port of the charge management circuit. Inside the charge management circuit, the two inputs provide input power to the internal DC/DC converter circuit in parallel.

The USB switch has two connection states, controlled by the control IO pin state, and the control IO is connected to the GPIO of the BB module. The level state of the GPIO is controlled by the user through the user interface. When the control IO input is high level "H", the 5V power supply and P_H connection are powered by the lithium battery through the step-up DC/DC module, D+ is connected to USB_2_D+_H, and D- and USB_2_D-_H are connected to each other, wherein USB_2_D+_H Connect to USB_2_D-_H through a 10 ohm resistor. In this state, the USB socket 2 of the mobile data terminal is equivalent to a USB type DC adapter, and can function as a charging treasure or a power adapter. When the control IO input is low level "L", the 5V power supply is connected to the IN_2 of the charge management circuit, and the D- is connected to the USB port corresponding to the USB extension HUB through the USB switch 2_2D-_L of the USB switch, and the D+ is switched via the USB switch. The pin USB_2_D+_L is connected to the USB port corresponding to the USB expansion HUB. In this state, the USB socket 2 can function as a USB user access port or an external power input port.

The embodiments of the present invention are described in detail below in conjunction with application scenarios.

Application scenario 1

FIG. 9 is a schematic diagram of an application scenario 1 according to an alternative embodiment of the present application. As shown in FIG. 9 , when a user connects to the mobile data terminal through a USB and implements an online application scenario through a USB interface (eg, the mobile data terminal) Connected to a notebook or personal computer (PC, Personal Computer) via USB, access to the communication network), according to the traditional mobile data terminal of the same type, due to the limited battery capacity, there will be battery power easily exhausted, resulting in system shutdown, Internet service The situation of being forced to interrupt affects the user experience. On the mobile data terminal of the embodiment of the present invention, the USB interface and the internal devices and circuits described in the above embodiments are expanded. Just plug in the power supply device of the external USB interface on the extended USB interface. It can include, but is not limited to, "charging treasure", another USB interface other than the computer's data port, or all other power supply devices that can meet the requirements through the USB interface.

USB interface 1 is inserted into the user's Internet terminal (for example: computer or embedded microcomputer system) On the USB port, the USB_1_D- and USB_1_D+ of the USB interface 1 are correspondingly connected to the USB interface corresponding to the USB extended HUB chip to realize the transmission of the Internet data stream, and the +5V power signal line is connected to the input port IN_1 of the lithium battery charging management circuit. . In this scenario, under the condition that the user needs to externally or expand the built-in battery capacity, firstly, the control IO is enabled to be a logic low level through the user interface, and the D+ and D- to which the USB interface 2 belongs are respectively switched to the USB_2_D of the USB switch. _L and USB_2_D+_L and USB expansion HUB implement normal Internet communication. The power pin of the external USB interface 2 is connected to the USB switch, and then input to the input IN_2 port of the lithium battery charge management circuit through the USB switch. IN_1 and IN_2 are connected in parallel inside the charge management circuit, and provide input current to the built-in DC/DC module. After DC/DC change, the post-stage load PMU is powered and the lithium battery is charged.

The two USB power supplies charge the lithium battery and load the load. If the external charging device is a "charge treasure" device with a certain battery capacity, the capacity of the built-in battery is extended to the sum of the capacity of the lithium battery plus the battery capacity of the charging treasure, so that the battery life of the mobile data terminal is greatly increased. If the external is a USB adapter, a computer USB interface or other USB powered devices, the power supply of the charging chip will be more than doubled by the power supply of the two USB interfaces. The built-in lithium battery will be charged first. And quickly fill the battery and stay in static equilibrium for a long time. In this state, when the mobile data terminal is working on the USB access network, the power supply of the load is basically provided by two USB interfaces, and the capacity of the built-in battery has basically no influence on the endurance capability. As described above, while working online, the built-in battery power will be fully charged to the rated battery power, which is convenient for the subsequent use of the mobile data terminal as the power source or "charging treasure" of other battery devices, which brings convenience and economy to the user. Time.

Application scenario 2

10 is a schematic diagram of an application scenario 2 according to an alternative embodiment of the present application. As shown in FIG. 10, on the basis of the foregoing application scenario 1, if the USB interface 1 and the USB interface 2 are simultaneously connected to two USB interface computers or On the embedded computer Internet access device, not only the online endurance capability is improved, but also the battery life is not limited, and dual USB users can access the Internet or data transmission service to meet the reliability and confidentiality of wired data transmission in complex application environments. Claim.

Application scenario three

11 is a schematic diagram of an application scenario 3 according to an alternative embodiment of the present application, as shown in FIG. The user implements a "charging treasure" function through the extended USB interface 2 of the mobile data terminal. At this time, the wireless access or WIFI routing function of the mobile data terminal works or does not work, and no special limitation is required. In this scenario, the USB switch controls the IO input logic high level "H", and the +5V power line of the USB interface 2 is connected to the DC/DC output through the switch, and the built-in battery outputs 4.75 to 5.25 through the step-up DC/DC module. V@500mA power supply, USB interface 2 D- and D+ signal lines, connected to 10 ohm resistors via USB_2_D-_H and USB_2_D+_H, to external battery storage devices of USB interface 2 or electronic devices requiring USB power supply The mobile data terminal is identified as a 5V USB power supply device (eg, a charging treasure, a power adapter, etc.) by the state of D- and D+.

Application scenario four

FIG. 12 is a schematic diagram of an application scenario 4 according to an alternative embodiment of the present application. As shown in FIG. 12, in the USB switch state according to the foregoing application scenario 3, that is, the USB switch controls the IO input logic high level “H”. On the basis of the above, when the mobile data terminal 3G/4G and the WIFI function work normally, at this time, the mobile phone user or the tablet user is connected to the USB interface 2, and the mobile data terminal is given to the USB interface 2 device. Provide power, increase the battery life of the user equipment, and provide users with wireless network access and data transmission.

Application scenario five

FIG. 13 is a schematic diagram of an application scenario 5 according to an alternative embodiment of the present application. As shown in FIG. 13 , based on the introduction of the foregoing embodiment, the USB switch controls the IO input logic low level “L” by using a USB interface. 1 and USB interface 2 are connected to a computer terminal having two USB interfaces. In this scenario, each USB provides a charging current input of 500 mA, and the charging time can be saved by 30% to 50% with respect to a single USB port. That is, the user can achieve the charging effect of the AC adapter without carrying the AC adapter (for example, the 5V@1A specification is often configured). You can also connect the USB interface 1 to the computer terminal USB interface (5V@500mA), the USB interface 2 to the output USB port of the AC adapter (for example: 5V@1A specification), or connect the USB interface 1 and the USB interface 2 Connect to the USB ports of the two external AC adapters (for example, the two adapter specifications can be 5V@1A, 5V@0.5A, 5V@2A, etc.). In this scenario, the charging current of the lithium battery is equal to the sum of the input current capabilities of the USB interface 1 and the USB interface 2, and the fast charging is achieved by configuring the power supply capability of the interface.

In an alternative embodiment of the present application, a charging socket having two inputs and a two-way external socket charger socket or USB charging socket are mainly included.

The optional embodiment of the present application solves the problem that when the user uses the terminal to access the Internet, the battery life is insufficient to cause the service to be interrupted. The embodiment of the present application provides a simple and low-cost fast charging solution to improve the traditional mobile data terminal. The hardware has additional appreciation capability, realizes the function of “mobile data terminal + charging treasure/USB adapter power supply”, can realize USB serial charging/power supply capability, and expands the number of accesses of USB users, which can realize two or more by a single, satisfying The requirements of multiple USB users in special industries; through the realization of the above functions, the optional embodiment expands the use function of the terminal products, enhances the user experience of the products, and improves the market competitiveness with similar products in the market.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, the technical solution of the present application, which is essential or contributes to the related art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, CD-ROM). The instructions include a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present application.

The embodiment of the invention further provides a computer readable storage medium. Alternatively, in the present embodiment, the above computer readable storage medium may be arranged to store program code for performing the method steps of the above-described embodiments.

Optionally, in this embodiment, the computer readable storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), and a mobile device. A variety of media that can store program code, such as hard disks, disks, or optical disks.

Optionally, in the embodiment, the processor performs the method steps of the above embodiments according to the stored program code in the computer readable storage medium.

Those skilled in the art will appreciate that the above-described modules or steps of the present application can be implemented by a general-purpose computing device, which can be centralized on a single computing device or distributed over a network of multiple computing devices. They can be implemented by program code executable by the computing device so that they can be stored in the storage device by the computing device, and in some cases In this case, the steps shown or described may be performed in a different order than the ones described herein, or they may be separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof may be implemented as a single integrated circuit module. Thus, the application is not limited to any particular combination of hardware and software.

The above description is only an optional embodiment of the present application, and is not intended to limit the present application, and various changes and modifications may be made to the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application are intended to be included within the scope of the present application.

Industrial applicability

The embodiment of the present invention provides a terminal USB interface setting method and a terminal, which solves the problem that the built-in battery of the terminal has limited battery life, and the terminal has a short battery life, and the terminal is slow to charge through the USB interface, thereby improving the terminal life time and shortening the terminal battery charging. time.

Claims

A terminal includes: a first universal serial bus USB socket, a second USB socket, a built-in battery, and a charging management circuit;

The power line of the first USB socket is connected to the charging management circuit; the power line of the second USB socket is connected to the charging management circuit, and the charging management circuit is connected to the built-in battery, the first The USB socket and the second USB socket are powered by the built-in battery through the charge management circuit.
The terminal according to claim 1, wherein the charge management circuit comprises: a first switch circuit, a second switch circuit, and a DC converter DC/DC;

a power line of the first USB socket is connected to the first switch circuit, a power line of the second USB socket is connected to the second switch circuit, and the first switch circuit and the second switch circuit are connected in parallel Connected to the DC converter DC/DC, the DC converter DC/DC is connected to the internal battery.
The terminal of claim 2 wherein said first switching circuit comprises a first diode and said second switching circuit comprises a second diode.
The terminal according to claim 1, further comprising: a first USB switch;

The power cable of the second USB socket is connected to the first USB switch, and the first USB switch is connected to the charging management circuit, wherein the first USB switch receives the first control signal. In the case that the first USB socket and the second USB socket are configured to supply power to the internal battery in parallel, the first control signal is that the first USB socket and the second USB socket are Built-in battery powered indicator.
The terminal according to claim 1, further comprising: a second USB switch and a step-up DC conversion DC/DC module;

The second USB switch is connected to the step-up DC conversion DC/DC module, and the step-up DC conversion DC/DC module is connected to the built-in battery, wherein the second USB switch receives the second control After the signal, the built-in battery boosts the power voltage of the internal battery through the boost DC-DC converter module and inputs the power to the second USB switch, and the second USB switch turns the power a voltage is input to the second USB socket, the second control signal And an indication signal that the built-in battery supplies power to an external device of the terminal through the second USB socket.
The terminal according to any one of claims 1 to 5, further comprising: a multi-port data forwarder;

a data line of the first USB socket is connected to the multi-port data repeater; a data line of the second USB socket is connected to the multi-port data repeater, wherein the first USB socket and the first The two USB sockets perform data transmission through the multi-port data repeater.
The terminal according to claim 6, the terminal further comprising: a third USB switch;

The data line of the second USB socket is connected to the third USB switch, and the third USB switch is connected to the multi-port data repeater, wherein the third USB switch receives the third In the case of a control signal, the second USB socket performs data transmission through the third USB switch and the multi-port data repeater, and the third control signal is used to indicate that the terminal passes the second USB The socket transmits data to and from an external device.
The terminal according to claim 7, wherein

The multi-port data repeater includes a USB expansion hub HUB.
A terminal USB interface setting method includes:

The first USB socket and the second USB socket are powered by a built-in battery of the charging management circuit and the behavior terminal, wherein a power line of the first USB socket is connected to the charging management circuit; and a power line of the second USB socket is The charge management circuit is connected, and the charge management circuit is connected to the internal battery.
The method of claim 9, wherein the first USB socket and the second USB socket are powered by the built-in battery of the charging management circuit and the behavior terminal comprises:

The built-in battery is powered by a DC converter DC/DC of the charging management circuit, wherein a power line of the first USB socket is connected to the first switch circuit, and a power line of the second USB socket is connected to the second The switch circuit is connected, the first switch circuit and the second switch circuit are connected in parallel with the DC converter DC/DC, and the DC converter DC/DC is connected to the built-in battery.
The method of claim 9 further comprising:

The first USB switch and the second USB socket supply power to the internal battery in parallel when the first USB switch receives the first control signal, and the first control signal is the first USB socket And the second USB socket is an indication signal for powering the built-in battery, wherein a power line of the second USB socket is connected to the first USB switch, the first USB switch and the charge management Circuit connection.
The method of claim 9 further comprising

After the second USB switch receives the second control signal, the internal battery boosts the power voltage of the internal battery through the step-up DC conversion DC/DC module and inputs to the second USB switch, the second The USB switch inputs the power voltage to the second USB socket, and the second control signal is an indication signal that the internal battery supplies power to an external device of the terminal through the second USB socket, where The second USB switch is connected to the step-up DC conversion DC/DC module, and the step-up DC conversion DC/DC module is connected to the built-in battery.
A method according to any one of claims 9 to 12, the method further comprising:

The first USB socket and the second USB socket perform data transmission through a multi-port data repeater, wherein a data line of the first USB socket is connected to the multi-port data repeater; the second USB socket The data line is connected to the multi-port data repeater.
The method of claim 13 further comprising:

In a case where the third USB switch receives the third control signal, the second USB socket performs data transmission by the third USB switch and the multi-port data repeater, and the third control signal is used for Instructing the terminal to perform data transmission with an external device through the second USB socket, wherein a data line of the second USB socket is connected to the third USB switch, and the third USB switch is Port data forwarder connection.