CN113099517A - Network sharing method and device of all-in-one conference machine and all-in-one conference machine - Google Patents
Network sharing method and device of all-in-one conference machine and all-in-one conference machine Download PDFInfo
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- CN113099517A CN113099517A CN202110639821.XA CN202110639821A CN113099517A CN 113099517 A CN113099517 A CN 113099517A CN 202110639821 A CN202110639821 A CN 202110639821A CN 113099517 A CN113099517 A CN 113099517A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4004—Coupling between buses
- G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/1813—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast for computer conferences, e.g. chat rooms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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Abstract
The invention provides a network sharing method and device of a conference all-in-one machine and the conference all-in-one machine, wherein the method comprises the following steps: the Android system is connected with the Windows system through an OTG USB module inside the Android system; the control circuit controls the ID pin of the OTG USB module to be grounded, so that the OTG USB module is controlled to be used as USB device; or the control circuit controls the ID pin of the OTG USB module to be connected with high level, thereby controlling the OTG USB module to be used as USB host equipment. The invention can realize the shared network without increasing the chip cost, and the shared network has strong anti-interference capability and is not limited by the bandwidth.
Description
Technical Field
The invention relates to the technical field of network sharing of all-in-one conference machines, in particular to a network sharing method and device of all-in-one conference machines and all-in-one conference machines.
Background
At present, two systems, an Android system and a Windows system, exist in most conference all-in-one machines at the same time. In the actual use process, an Android system and a Windows system are usually required to realize a shared network. At present, the common method for sharing the network by the Android system and the Windows system comprises the following steps:
the Android system end uses a wifi module as a hot spot, and the Windows system end is connected with the hot spot to achieve networking.
2. The Android system and the Windows system are connected with the same network switch to realize internet surfing.
The two methods for realizing the shared network have the following problems:
1. the use of hot spots may be subject to interference and connection bandwidth limitations of the wireless network.
2. The use of switch chips increases hardware costs.
Therefore, there is a need for an improvement of the prior art network sharing method.
Disclosure of Invention
The invention aims to provide a network sharing method and device of a conference all-in-one machine and the conference all-in-one machine, which can solve the problems that in the prior art, sharing of a network by adopting hot spots is interfered and the bandwidth is limited without a switch chip.
The purpose of the invention is realized by the following technical scheme:
in a first aspect, the present invention provides a network sharing method for a conference all-in-one machine, including the following steps:
the Android system is connected with the Windows system through an OTG USB module inside the Android system;
the control circuit controls the ID pin of the OTG USB module to be grounded, so that the OTG USB module is controlled to be used as USB device; or the control circuit controls the ID pin of the OTG USB module to be connected with high level, thereby controlling the OTG USB module to be used as USB host equipment.
Further, the controlling the OTG USB module to be used as a USB device includes:
grounding an ID pin of the OTG USB module;
configuring a kernel kennel of the main chip of the Android system to enable the kernel kennel to Support the USB gap Support, and adding a drive according to the USB configuration of the main chip of the Android system to enable the OTG USB module to become a virtual network card;
modifying an iptable table in a kernel of an Android system chip for ip forwarding, so that network data connected to the Android system are sent out through a virtual network card;
and the Windows system end accesses the Internet through the OTG USB module, so that the network sharing of the Windows system and the Android system is realized.
Further, controlling the OTG USB module to be used as a USB host device includes: and controlling an ID pin of the OTG USB module to be connected with a high level through a GPIO pin of the Android system main chip.
In a second aspect, the invention provides a network sharing device of a conference all-in-one machine, which comprises an OTG USB module and a control circuit, wherein an Android system is connected with a Windows system through the OTG USB module; the OTG USB module at least comprises an ID pin, the ID pin is connected with the output end of the control circuit, and the input end of the control circuit is connected with a GPIO pin of the main chip of the Android system; the output end of the GPIO pin control circuit of the Android system main chip is in a high level state, so that the OTG USB module is controlled to be used as a USB host device, or the output end of the GPIO pin control circuit of the Android system main chip is in a low level state, so that the OTG USB module is controlled to be used as a USB device.
Further, the control circuit comprises a resistor R1, a resistor R2 and a triode Q1, one end of the resistor R1 is used as the input end of the control circuit to be connected with a GPIO pin of the Android system main chip, the other end of the resistor R1 is connected with the base electrode of the triode Q1, the emitter of the triode Q1 is grounded, the collector of the triode Q1 is used as the output end of the control circuit to be connected with the ID pin of the OTG USB module, and the collector is connected with the voltage VCC through the resistor R2.
Further, the OTG USB module further includes a power pin, a ground pin, and two data pins.
In a third aspect, the invention provides a conference all-in-one machine, which includes the network sharing device.
According to the network sharing method and device of the conference all-in-one machine and the conference all-in-one machine, the network sharing can be realized without increasing the chip cost, the anti-interference capability of the shared network is strong, and the bandwidth limitation is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a diagram illustrating the steps of a network sharing method of the all-in-one conference machine according to the present invention;
FIG. 2 is a block diagram of a network sharing device of the all-in-one conference machine of the present invention;
fig. 3 is a circuit schematic diagram of the control circuit of the present invention.
Detailed Description
The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The network sharing method of the conference all-in-one machine of the invention is shown in figure 1, and comprises the following steps:
and S1, connecting the Android system with the Windows system through the OTG USB module in the Android system.
OTG is an abbreviation for On-The-Go, and is applied to The connection between different devices or mobile devices for data exchange. The method mainly includes negotiating whether a USB Device is used as a HOST Device or a Device, for example, a mobile phone supports an OTG function, when a U disk is connected, the U disk can only be used as a Device, and at the moment, the mobile phone is used as a HOST Device and can read and write the U disk, but the U disk cannot read and write the mobile phone. When the mobile phone is connected to the computer, the mobile phone is used as device equipment, the computer can read and write the storage of the mobile phone, and the mobile phone cannot read and write the storage of the computer.
Step S2, controlling the grounding of the ID pin of the OTG USB module through the control circuit, thereby controlling the OTG USB module to be used as USB device; or the control circuit controls the ID pin of the OTG USB module to be connected with high level, thereby controlling the OTG USB module to be used as USB host equipment.
USB device devices and USB host devices are two different types of USB devices, in which USB device devices can only be read from and written to, such as a USB disk. The USB host device may control the USB interface of other devices, such as a USB interface of a computer.
Further, controlling the OTG USB module to be used as a USB device includes:
and step S201, connecting the ID pin of the OTG USB module to the ground through a triode.
Step S202, configuring a kernel kennel of the main chip of the Android system to enable the kernel kennel to Support the USB gap Support, and adding a drive according to the USB configuration of the main chip of the Android system to enable the OTG USB module to be a virtual network card.
The USB gap Support is a control switch in a kernel, can enable an OTG USB module to Support the types of host equipment or device equipment from software, and can form a complete OTG function by matching with hardware connection.
And S203, modifying an iptable table in the kernel of the Android system chip to perform ip forwarding, so that the network data received by the Android system is sent out through the virtual network card.
Regarding modification of iptable, the built-in table is mainly modified, and the part is modified according to the open source code of Linux.
And S204, the Windows system side identifies a network card device through the OTG USB module and surfs the internet through the network card device, so that network sharing of the Windows system and the Android system is realized.
Furthermore, when the Windows system and the Android system do not need network sharing, the ID pin of the OTG USB module is controlled to be connected with a high level through a GPIO pin of the Android system main chip.
The ID pin of the OTG USB module can be controlled to be connected with GND or high level through the GPIO pin of the Android system main chip, so that the OTG USB is controlled to be used as device equipment or host equipment. When the device is used as a host device, Windows can not recognize the virtual network card device, and the network connection is disconnected, otherwise, the network device is connected.
The network sharing device of the all-in-one conference machine is shown in a structural block diagram in fig. 2 and comprises an OTG USB module and a control circuit, wherein the OTG USB module at least comprises an ID pin, the ID pin is connected with an output end of the control circuit, and an input end of the control circuit is connected with a GPIO pin of an Android system main chip. The output end of the GPIO pin control circuit of the Android system main chip is in a high level state, so that the OTG USB module is controlled to be used as a USB host device, or the output end of the GPIO pin control circuit of the Android system main chip is in a low level state, so that the OTG USB module is controlled to be used as a USB device.
The Android system and the Windows system are connected through the OTG USB module, and when the OTG USB module is used as USB device equipment, the Android system and the Windows system realize network sharing.
Further, the OTG USB module further includes a power pin, a ground pin, and two data pins.
Further, a circuit schematic diagram of the control circuit is shown in fig. 3, and the control circuit includes a resistor R1, a resistor R2, and a transistor Q1, wherein one end of the resistor R1 is used as an input end of the control circuit and is connected to a GPIO pin of the Android system main chip, the other end of the resistor R1 is connected to a base of a transistor Q1, an emitter of the transistor Q1 is grounded, a collector of the transistor Q1 is used as an output end of the control circuit and is connected to an ID pin of the OTG USB module, and is connected to a voltage VCC through the resistor R2.
The working principle of fig. 3 is: when the GPIO pin of the Android system main chip outputs a low level, the triode Q1 is not conducted, the collector of the triode Q1 is a high level, so that the ID pin of the OTG USB module is also a high level, and the OTG USB module is used as host equipment at the moment. When the GPIO pin of the Android system main chip outputs a high level, the triode Q1 is conducted, the collector of the triode Q1 is a low level, so that the ID pin of the OTG USB module is also a low level, and the OTG USB module is used as device equipment at the moment.
The invention also provides a conference all-in-one machine which comprises the network sharing device.
In the present invention, unless otherwise expressly stated or limited, the first feature may be "on" the second feature in direct contact with the second feature, or the first and second features may be in indirect contact via an intermediate. "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and the like.
The above description is for the purpose of illustrating embodiments of the invention and is not intended to limit the invention, and it will be apparent to those skilled in the art that any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the invention shall fall within the protection scope of the invention.
Claims (6)
1. The network sharing method of the conference all-in-one machine is characterized by comprising the following steps:
the Android system is connected with the Windows system through an OTG USB module inside the Android system;
the control circuit controls the ID pin of the OTG USB module to be grounded, so that the OTG USB module is controlled to be used as USB device; or the control circuit controls the ID pin of the OTG USB module to be connected with a high level, thereby controlling the OTG USB module to be used as USB host equipment;
the control OTG USB module as USB device includes:
grounding an ID pin of the OTG USB module;
configuring a kernel kennel of the main chip of the Android system to enable the kernel kennel to Support the USB gap Support, and adding a drive according to the USB configuration of the main chip of the Android system to enable the OTG USB module to become a virtual network card;
modifying an iptable table in a kernel of an Android system chip for ip forwarding, so that network data connected to the Android system are sent out through a virtual network card;
and the Windows system end accesses the Internet through the OTG USB module, so that the network sharing of the Windows system and the Android system is realized.
2. The network sharing method of the conference all-in-one machine according to claim 1, wherein the controlling the OTG USB module to be used as a USB host device comprises: and controlling an ID pin of the OTG USB module to be connected with a high level through a GPIO pin of the Android system main chip.
3. The network sharing device of the conference all-in-one machine is characterized by comprising an OTG USB module and a control circuit, wherein an Android system is connected with a Windows system through the OTG USB module; the OTG USB module at least comprises an ID pin, the ID pin is connected with the output end of the control circuit, and the input end of the control circuit is connected with a GPIO pin of the main chip of the Android system; the output end of the GPIO pin control circuit of the Android system main chip is in a high level state, so that the OTG USB module is controlled to be used as a USB host device, or the output end of the GPIO pin control circuit of the Android system main chip is in a low level state, so that the OTG USB module is controlled to be used as a USB device.
4. The network sharing device of the all-in-one conference machine as claimed in claim 3, wherein the control circuit comprises a resistor R1, a resistor R2 and a transistor Q1, one end of the resistor R1 is used as an input end of the control circuit to be connected with a GPIO pin of the Android system main chip, the other end of the resistor R1 is connected with a base electrode of a transistor Q1, an emitter electrode of a transistor Q1 is grounded, a collector electrode of the transistor Q1 is used as an output end of the control circuit to be connected with an ID pin of the OTG USB module, and the collector electrode is connected with a voltage VCC through the resistor R2.
5. The network sharing device of the all-in-one conference machine according to claim 3, wherein the OTG USB module further comprises a power pin, a ground pin and two data pins.
6. A conference kiosk comprising a network sharing device as claimed in any one of claims 3 to 5.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110639821.XA CN113099517B (en) | 2021-06-09 | 2021-06-09 | Network sharing method and device of all-in-one conference machine and all-in-one conference machine |
| PCT/CN2022/103229 WO2022258074A1 (en) | 2021-06-09 | 2022-07-01 | Network sharing method and apparatus for conference all-in-one machine, and conference all-in-one machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110639821.XA CN113099517B (en) | 2021-06-09 | 2021-06-09 | Network sharing method and device of all-in-one conference machine and all-in-one conference machine |
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| Publication Number | Publication Date |
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| CN113099517A true CN113099517A (en) | 2021-07-09 |
| CN113099517B CN113099517B (en) | 2021-08-31 |
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| CN202110639821.XA Active CN113099517B (en) | 2021-06-09 | 2021-06-09 | Network sharing method and device of all-in-one conference machine and all-in-one conference machine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101944074A (en) * | 2010-07-05 | 2011-01-12 | 中兴通讯股份有限公司 | Method and device for realizing OTG based on USB socket |
| US20130335008A1 (en) * | 2011-12-02 | 2013-12-19 | Huawei Device Co., Ltd. | Charger integrating network interface conversion apparatus |
| CN103888336A (en) * | 2014-02-28 | 2014-06-25 | 广州视睿电子科技有限公司 | Networking method of multi-system all-in-one machine and multi-system all-in-one machine |
| CN209401111U (en) * | 2018-12-18 | 2019-09-17 | 杭州吉租科技有限公司 | A kind of intelligent building power-supply management system |
| CN111124957A (en) * | 2019-12-31 | 2020-05-08 | 通彩视听科技(上海)有限公司 | USB channel switching device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103888337B (en) * | 2014-02-28 | 2017-06-13 | 广州视睿电子科技有限公司 | Networking method of multi-system all-in-one machine and multi-system all-in-one machine |
| CN107017915A (en) * | 2017-03-27 | 2017-08-04 | 广州视源电子科技股份有限公司 | Equipment for realizing sharing of wireless network by multiple systems and working method thereof |
| CN107682162A (en) * | 2017-10-13 | 2018-02-09 | 广州视源电子科技股份有限公司 | Electronic equipment, network sharing method and device |
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2021
- 2021-06-09 CN CN202110639821.XA patent/CN113099517B/en active Active
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- 2022-07-01 WO PCT/CN2022/103229 patent/WO2022258074A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944074A (en) * | 2010-07-05 | 2011-01-12 | 中兴通讯股份有限公司 | Method and device for realizing OTG based on USB socket |
| US20130335008A1 (en) * | 2011-12-02 | 2013-12-19 | Huawei Device Co., Ltd. | Charger integrating network interface conversion apparatus |
| CN103888336A (en) * | 2014-02-28 | 2014-06-25 | 广州视睿电子科技有限公司 | Networking method of multi-system all-in-one machine and multi-system all-in-one machine |
| CN209401111U (en) * | 2018-12-18 | 2019-09-17 | 杭州吉租科技有限公司 | A kind of intelligent building power-supply management system |
| CN111124957A (en) * | 2019-12-31 | 2020-05-08 | 通彩视听科技(上海)有限公司 | USB channel switching device |
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| Publication number | Publication date |
|---|---|
| WO2022258074A1 (en) | 2022-12-15 |
| CN113099517B (en) | 2021-08-31 |
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Address after: Room 238, room 406, No.1, Yichuang street, Huangpu District, Guangzhou, Guangdong 510000 Patentee after: Guangzhou langguo Electronic Technology Co.,Ltd. Address before: Room 238, room 406, No.1, Yichuang street, Huangpu District, Guangzhou, Guangdong 510000 Patentee before: GUANGZHOU LANGO ELECTRONIC SCIENCE & TECHNOLOGY Co.,Ltd. |