WO2021184291A1

WO2021184291A1 - Data transmission method, apparatus and system

Info

Publication number: WO2021184291A1
Application number: PCT/CN2020/080176
Authority: WO
Inventors: 王文博; 韩丹
Original assignee: 西安诺瓦星云科技股份有限公司
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2021-09-23
Also published as: CN113812127B; CN113812127A

Abstract

Disclosed are a data transmission method, apparatus and system. The method comprises: a target device receiving a first IP address sent by the next device connected to the target device, and sending a second IP address to a previous device connected to the target device, wherein the first IP address and the second IP address are respectively distributed by the next device and the target device on the basis of a remote network driving program interface specification; on the basis of the first IP address, the target device establishing a first local area network with the next device; on the basis of the second IP address, the target device establishing a second local area network with the previous device; and in the second local area network, the target device receiving data sent by the previous device, and in the first local area network, the target device sending the data to the next device. The present application solves the technical problem in the related art of a high development difficulty caused by the communication between multiple devices by means of a USB protocol.

Description

Method, device and system for transmitting data

Technical field

This application relates to the field of display, and in particular to a method, device and system for transmitting data.

Background technique

The LED display system includes a multimedia play box and an LED display. The multimedia play box is composed of an application processor, memory, storage, and an application system (for example, Android Android system). Generally, the multimedia player box is connected to the LED display screen, the LED display screen needs to be configured with screen parameters, and the multimedia player box needs to be configured with playback parameters, and the above parameters need to be saved. If there are only a few sets of LED display systems, users can configure them separately. However, for an LED display system that includes a large number of LED display screens and multimedia playback boxes, if it is configured separately, it will inevitably lead to duplication of workload.

In order to solve the above problems, in the related technology, a Universal Serial Bus (USB) is connected between multiple LED display systems, and the upper computer sends various data to the multimedia play box and the LED display screen through the USB protocol for correlation. Configure and save operations. However, the development of the USB protocol is difficult, resulting in an overall increase in production costs.

Aiming at the technical problem that multiple devices in related technologies, such as multimedia player boxes communicate through the USB protocol, which leads to difficult development, no effective solution has been proposed yet.

Summary of the invention

The embodiments of the present application provide a method, device, and system for data transmission, so as to at least solve the technical problem of communication between multiple devices in the related art through the USB protocol, which causes great difficulty in development.

According to one aspect of the embodiments of the present application, a method for transmitting data is provided, which includes: a target device receives a first IP address sent by a next device connected to it, and sends a second IP address to the previous device connected to it, Among them, the first IP address and the second IP address are respectively assigned by the next device and the target device based on the remote network driver interface specification; based on the first IP address, the target device establishes a first local area network with the next device; based on the second IP address , The target device establishes a second local area network with the previous device; in the second local area network, the target device receives the data sent by the previous device, and in the first local area network, the target device sends the data to the next device. This embodiment solves the technical problem of communication between multiple devices in the related art through the USB protocol, which causes great development difficulty, avoids the problem that the communicating devices need to be configured one by one in advance, and achieves the reduction of the development difficulty and the configuration at the same time. The purpose of multiple devices.

Optionally, the target device includes a USB host module and a USB slave module. The target device receives the first IP address sent by the next device connected to it, and sends the second IP address to the previous device connected to it, including: remote-based The network driver interface specification, the target device receives the first IP address through the USB host module, and sends the second IP address to the next device through the USB slave module. This embodiment implements the allocation of IP addresses by running the RNDIS protocol on the USB slave module.

Optionally, before the target device receives the first IP address through the USB host module and sends the second IP address to the next device through the USB slave module, the above method further includes: setting the working mode of the USB slave module to the network card mode.

Optionally, after the target device establishes a second local area network with the previous device based on the second IP address, the above method further includes: receiving an acquisition instruction, wherein the acquisition instruction is set to acquire configuration information of the target device; and returning the configuration to the previous device information.

Optionally, if the data includes multimedia information, the above method further includes: the target device sends the multimedia information to the display device, wherein the display device is matched with the target device.

Optionally, the target device is connected to the previous device and the next device via USB.

According to another aspect of the embodiments of the present application, there is also provided a method for transmitting data, including: a target device receives a first IP address sent by a next device connected to it, wherein the first IP address is used by the next device based on the remote Network driver interface specification allocation; based on the first IP address, the target device establishes a first local area network with the next device; in the first local area network, the target device sends data to the next device. In this embodiment, the development difficulty is reduced through the RNDIS protocol.

Optionally, before the target device receives the first IP address sent by the next device connected to it, the above method further includes: receiving a configuration instruction, wherein the configuration instruction is set to the target device configuration driver corresponding to the remote network driver interface specification Programs and software; configure drivers and software based on configuration instructions. In this embodiment, by configuring the driver and software on the target device, data transmission with the next device can be realized.

Optionally, the target device includes a USB host module, and the target device receiving the first IP address sent by the next device connected to the target device includes: based on the remote network driver interface specification, the target device receives the first IP address through the USB host module.

According to another aspect of the embodiments of the present application, there is also provided a method for transmitting data, including: the target device sends a second IP address to the previous device connected to it, wherein the second IP address is driven by the target device based on a remote network Program interface specification allocation; based on the second IP address, the target device establishes a second local area network with the previous device; in the second local area network, the target device receives data sent by the previous device. In this embodiment, the development difficulty is reduced through the RNDIS protocol.

Optionally, the target device includes a USB slave module, and the target device sends the second IP address to the previous device connected to it, including: based on the remote network driver interface specification, the target device sends the second IP address to the next device through the USB slave module IP address.

According to another aspect of the embodiments of the present application, there is also provided an apparatus for transmitting data, which is set in a target device, and the apparatus includes: a first receiving module configured to receive a first receiving module sent by the next device connected to the target device. IP address, and send a second IP address to the previous device connected to the target device, where the first IP address and the second IP address are respectively allocated by the next device and the target device based on the remote network driver interface specification; the first establishment The module is set to establish a first local area network with the next device based on the first IP address; the second establishment module is set to establish a second local area network with the previous device based on the second IP address; the execution module is set to establish a second local area network with the previous device Inside, receive the data sent by the previous device, and send the data to the next device in the first local area network.

According to another aspect of the embodiments of the present application, there is also provided a system for transmitting data, including: a plurality of cascaded devices, including the last device and other devices except the last device. Among the other devices, Each device receives the first IP address sent by the next device connected to it, and sends the second IP address to the previous device connected to it. The last device only sends the second IP address to the previous device connected to it. The IP address and the second IP address are allocated based on the remote network driver interface specification; the upper computer is connected to the first device among the remaining devices, and is set to receive the first IP address sent by the first device based on the first IP address , The host computer establishes a first local area network with the first device. In the first local area network, the host computer sends data to the first device, and the first device transmits the data to the second device connected to it, until it is transmitted sequentially To the last device. The system of this embodiment includes multiple cascaded devices and a host computer. The RNDIS protocol solves the problem of communication between multiple devices in the related technology through the USB protocol, which leads to technical problems that are difficult to develop, and avoids the need for communication between devices. The problem of configuring one by one in advance achieves the goal of reducing the difficulty of development and configuring multiple devices at the same time.

According to another aspect of the embodiments of the present application, there is also provided a system for transmitting data, including: a plurality of cascaded devices, including the last device and other devices except the last device. Among the other devices, Each device receives the first IP address sent by the next device connected to it, and sends the second IP address to the previous device connected to it. The last device only sends the second IP address to the previous device connected to it. The IP address and the second IP address are allocated based on the remote network driver interface specification; the upper computer is connected to the first device among the remaining devices, and is set to receive the first IP address sent by the first device based on the first IP address , The host computer establishes a first local area network with the first device. In the first local area network, the host computer sends data to the first device, and the first device transmits the data to the second device connected to it, until it is transmitted sequentially To the last device; multiple display devices, matched with multiple cascaded devices one by one, set to display data. The system of this embodiment includes multiple cascaded devices, multiple display devices, and a host computer. Through the RNDIS protocol, the communication between multiple devices in the related technology through the USB protocol is solved, which leads to technical problems that are difficult to develop. The display device The transmitted data can be displayed intuitively, which avoids the problem of one-by-one configuration between communicating devices, and achieves the purpose of reducing the difficulty of development and configuring multiple devices at the same time.

In this embodiment of the application, the target device receives the first IP address sent by the next device connected to it, and sends the second IP address to the previous device connected to it, where the first IP address and the second IP address are respectively assigned to The next device and the target device are allocated based on the remote network driver interface specification; based on the first IP address, the target device establishes a first local area network with the next device; based on the second IP address, the target device establishes a second local area network with the previous device; In the second local area network, the target device receives the data sent by the previous device, and in the first local area network, the target device sends the data to the next device. Compared with the related technology, the device in this application can work in the network card mode, and provide an IP address for the previous device connected to it through the remote network driver interface specification, which solves the problem of communication between multiple devices in the related technology through the USB protocol. This leads to technical problems that are difficult to develop, avoids the problem that communication devices need to be configured one by one in advance, and achieves the purpose of reducing the difficulty of development and configuring multiple devices at the same time.

Description of the drawings

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The exemplary embodiments and descriptions of the application are used to explain the application, and do not constitute an improper limitation of the application. In the attached picture:

FIG. 1 is a flowchart of an optional data transmission method according to Embodiment 1 of the present application;

2 is a structural diagram of an optional data transmission device according to Embodiment 1 of the present application;

FIG. 3 is a flowchart of an optional data transmission method according to Embodiment 2 of the present application;

4 is a structural diagram of an optional data transmission device according to Embodiment 2 of the present application;

FIG. 5 is a flowchart of an optional data transmission method according to Embodiment 3 of the present application;

FIG. 6 is a structural diagram of an optional data transmission device according to Embodiment 3 of the present application;

FIG. 7 is a schematic structural diagram of an optional data transmission device according to Embodiment 4 of the present application;

FIG. 8 is a schematic structural diagram of an optional data transmission device according to Embodiment 5 of the present application;

FIG. 9 is a schematic structural diagram of an optional data transmission device according to Embodiment 6 of the present application;

FIG. 10 is a structural diagram of an optional data transmission system according to Embodiment 7 of the present application; and

FIG. 11 is a structural diagram of an optional data transmission system according to Embodiment 8 of the present application.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. In order to enable those skilled in the art to better understand the solutions of the application, the technical solutions in the embodiments of the application will be clearly and completely described below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only These are a part of the embodiments of this application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work should fall within the protection scope of this application.

In addition, the terms “first” and “second” in the description and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations of them are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those clearly listed. Those steps or units may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or devices.

For ease of description, some terms or terms involved in the embodiments of the present application are described below:

Transmission Control Protocol/Internet Protocol (Transmission Control Protocol/Internet Protocol, TCP/IP) refers to the protocol cluster that can realize data transmission between multiple different networks. Its name is derived from the earliest two core protocols: Transmission Control Protocol ( Transmission Control Protocol (TCP) and Internet Protocol (Internet Protocol, IP), which specify the way equipment connects to the network and the standard for how data is transmitted.

Example 1

According to an embodiment of the present application, an embodiment of a method for transmitting data is provided, which can be applied to multiple cascaded devices. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although the logical sequence is shown in the flowchart, in some cases, The steps shown or described can be performed in a different order than here.

Fig. 1 is a flowchart of a method for transmitting data according to an embodiment of the present application. As shown in Fig. 1, the method includes the following steps:

Step S102: The target device receives the first IP address sent by the next device connected to it, and sends the second IP address to the previous device connected to it, where the first IP address and the second IP address are respectively assigned by the next device and The target device is allocated based on the remote network driver interface specification.

In an optional solution, the above-mentioned target device, the next device, and the previous device may be the same device or different devices, which is not limited here.

For the convenience of description, this application uses the same multimedia play box as an example for description. It should be noted that all data transmission between multiple devices, as long as each device can run the Remote Network Driver Interface Specification (RNDIS), is within the protection scope of this application, such as the built-in typical A device with an Android board can implement the communication mode of the embodiment of the present application.

The so-called remote network driver interface specification is an implementation of the network driver interface specification (NDIS) based on USB. The actual function is TCP/IP over USB, that is, the USB device is regarded as a network card and TCP/IP is run on the USB device. Protocol to realize data transmission between devices.

In an optional solution, the above-mentioned TCP/IP protocol can be called through the Socket programming interface.

Since the network driver interface specification defines the communication interface specification between the network card or the network card driver and the upper layer protocol driver, it shields the difference of the underlying physical hardware, so that the upper layer protocol driver can communicate with any type of network card at the bottom layer. Therefore, The network driver interface specification creates a complete development environment for the network driver, without considering the kernel of the operating system and the interface with other programs, so that the network driver can be separated from the complex communication of the operating system, which is greatly convenient The preparation of network driver.

In an optional embodiment, multiple devices are cascaded, that is, device 1 and device 2 are connected, and device 2 and device 3 are connected. As the network card of device 2, device 3 can run the remote network driver interface specification and assign IP address to device 2; device 2 can be used as the network card of device 1, run the remote network driver interface specification, and assign IP address to device 1. Obviously, the above solution only needs to run the remote network driver interface specification to realize the interconnection of devices, which greatly reduces the difficulty of development.

Step S104, based on the first IP address, the target device establishes a first local area network with the next device.

In an optional solution, the above-mentioned first local area network may be a TCP/IP local area network.

Since the first IP address is sent by the next device to the target device, the target device and the next device can establish a first local area network.

Step S106: Based on the second IP address, the target device establishes a second local area network with the previous device.

In an optional solution, the above-mentioned second local area network may be a TCP/IP local area network.

Since the second IP address is sent by the target device to the previous device, the previous device and the target device can establish a second local area network.

It should be noted that the first local area network and the second local area network are independent of each other and do not interfere with each other. If the transmission link of the second local area network fails, the data transmission of the first local area network will not be affected.

Step S108: In the second local area network, the target device receives the data sent by the previous device, and in the first local area network, the target device sends the data to the next device.

In an optional solution, the above data can be the configuration parameters of the device, such as the screen configuration parameters of the multimedia player box (such as resolution, brightness, etc.), synchronous/asynchronous mode, and network access methods (such as WiFi connection, 4G connection, 5G connection) Etc.), temperature, memory usage, timing switch screen, etc., can also be multimedia information, such as video streams, pictures, text, etc.

Through the above steps, the target device establishes a second local area network with the previous device, and establishes a first local area network with the next device. Then the data sent by the previous device can be received through the second local area network, and then the data sent by the previous device can be received through the first local area network. The data is sent to the next device, and then passed in order to realize the gradual transmission of data.

In an optional embodiment, the upper computer needs to configure the relevant parameters of n multimedia playback boxes at the same time. The first multimedia play box is connected to the host computer, the second multimedia play box is connected between the first multimedia play box and the third multimedia play box,..., the n-1th multimedia play box is connected to the nth -2 between the multimedia play box and the nth multimedia play box. The n-th multimedia player box assigns an IP address to the n-1th multimedia player box based on RNDIS, which forms a local area network; the n-1th multimedia player box assigns an IP address to the n-2th multimedia player box based on RNDIS , The two form a local area network; ...; the first multimedia player box is based on RNDIS to assign an IP address to the upper computer, and the two form a local area network. Therefore, when the networking is completed, the host computer needs to transmit data (for example, setting the relevant parameters of the multimedia play box) to the multimedia play box, and it can send data to the first multimedia play box through the TCP/IP protocol. After the first multimedia play box receives the data, it configures its own related parameters, and at the same time transmits the data to the second multimedia play box, and then the second multimedia play box passes backwards step by step until it is transmitted to the last multimedia player box.

In this embodiment of the application, the target device receives the first IP address sent by the next device connected to it, and sends the second IP address to the previous device connected to it, where the first IP address and the second IP address are respectively assigned to The next device and the target device are allocated based on the remote network driver interface specification; based on the first IP address, the target device establishes a first local area network with the next device; based on the second IP address, the target device establishes a second local area network with the previous device; In the second local area network, the target device receives the data sent by the previous device, and in the first local area network, the target device sends the data to the next device. Compared with the related technology, the device in this application can work in the network card mode, and provide an IP address for the previous device connected to it through the remote network driver interface specification, which solves the problem of communication between multiple devices in the related technology through the USB protocol. This leads to technical problems that are difficult to develop, avoids the problem that communication devices need to be configured one by one in advance, and achieves the goal of low development difficulty and simultaneous configuration of multiple devices.

Obviously, the above solution of this embodiment can configure multiple devices at the same time, which can improve work efficiency and maintain the consistency of transmission parameters.

The above steps of this embodiment will be further described below.

Optionally, the target device includes a USB host module and a USB slave module. In step S102, the target device receives the first IP address sent by the next device connected to it, and sends the second IP address to the previous device connected to it. It can include:

Step S1022, based on the remote network driver interface specification, the target device receives the first IP address through the USB host module, and sends the second IP address to the next device through the USB slave module.

In an optional solution, the above-mentioned USB host module may include a USB host interface, and the above-mentioned USB device module may include a USB slave interface.

It should be noted that the target device, the previous device, and the next device may be the same device, and all may include a USB host module and a USB slave module.

Figure 2 shows an optional data transmission device structure diagram. As shown in Figure 2, the target device is connected between the previous device and the next device. Specifically, the target device is connected to the USB host module of the previous device through the USB slave interface of the USB slave module, and the target device is connected to the USB slave module of the next device through the host interface of the USB host module.

Optionally, before performing step S1022, the target device receives the first IP address through the USB host module and sends the second IP address to the next device through the USB slave module, the above method may further include:

In step S1021, the working mode of the USB slave module is set to the network card mode.

In an optional solution, the above-mentioned network card mode can be RNDIS mode, which can be set through a USB slave module. For example, the RNDIS mode can be set by the supporting software after the system is turned on to save setting time and improve work efficiency.

Optionally, after performing step S106, based on the second IP address, the target device establishes a second local area network with the previous device, the above method may further include:

Step S1051: Receive an acquisition instruction, where the acquisition instruction is set to acquire configuration information of the target device.

Taking the multimedia player box as an example, the above configuration information may include the screen configuration parameters of the multimedia player box (such as resolution, brightness, etc.), synchronous/asynchronous mode, network access method (such as WiFi connection, 4G connection, 5G connection, etc.), temperature, Memory usage, timing switch screen, etc.

In step S1052, the configuration information is returned to the previous device.

After the target device receives the acquisition instruction, it returns its configuration information to the previous device, and transmits it to the upper computer level by level through the previous device, so that the upper computer sends out the configuration instructions according to the configuration information of the target device.

It should be noted that when the configuration information of multiple devices is the same, the upper computer only needs to obtain the configuration information of the first device connected to the upper computer.

Optionally, if the data includes multimedia information, the above method may also include:

Step S109: The target device sends multimedia information to the display device, where the display device is matched with the target device.

In an optional solution, the above-mentioned multimedia information may be in the form of video streams, pictures, texts, etc.; the above-mentioned display device may be a TV wall, a monitor, a display screen, etc., and the display device is controlled by a matching multimedia play box.

Specifically, the USB slave interface of the target device is connected to the USB host interface of the previous device through USB, and the USB host interface of the target device and the USB slave interface of the next device are also connected through USB. In addition, the USB slave interface of the first device and the USB host interface of the upper computer are also connected via USB.

It can be seen that multiple devices only need to be connected via USB, plug and play, and multiple devices can be configured at the same time without more configuration. Developers do not need to pay attention to the USB protocol, which reduces the difficulty of development.

In the above-mentioned embodiment of the present application, the target device receives the first IP address sent by the next device connected to it, and sends the second IP address to the previous device connected to it, where the first IP address and the second IP address are respectively assigned by The next device and the target device are allocated based on the remote network driver interface specification; based on the first IP address, the target device establishes a first local area network with the next device; based on the second IP address, the target device establishes a second local area network with the previous device; In the second local area network, the target device receives the data sent by the previous device, and in the first local area network, the target device sends the data to the next device. Compared with the related technology, the device in this application can work in the network card mode, and provide an IP address for the previous device connected to it through the remote network driver interface specification, which solves the problem of communication between multiple devices in the related technology through the USB protocol. This leads to technical problems that are difficult to develop, avoids the need to configure the communication devices one by one in advance, and achieves the goal of reducing the difficulty of development and configuring multiple devices at the same time. It is easy to notice that the above scheme realizes the TCP/IP communication between the devices through the USB host module and the USB slave module; by setting the USB slave module to the network card mode, the IP address is assigned to the previous device; by transmitting the configuration information to The previous device can facilitate the host computer to issue configuration instructions; through the display device matched with the multimedia player box, display multimedia information; connect each device through USB, plug and play, no more configuration, greatly improving work efficiency.

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 the necessary general hardware platform, of course, it can also be implemented by hardware, but in many cases the former is Better implementation. Based on this understanding, the technical solution of this application essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to enable a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in the various embodiments of the present application.

Example 2

According to an embodiment of the present application, an embodiment of a method for transmitting data is provided, which can be applied to an upper computer. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although the logical sequence is shown in the flowchart, in some cases, The steps shown or described can be performed in a different order than here.

Fig. 3 is a flowchart of a method for transmitting data according to an embodiment of the present application. As shown in Fig. 3, the method includes the following steps:

Step S302: The target device receives the first IP address sent by the next device connected to it, where the first IP address is allocated by the next device based on the remote network driver interface specification.

In an optional solution, the above-mentioned target device can be an upper computer or an intelligent terminal with control function; the above-mentioned next device can run Remote Network Driver Interface Specification (RNDIS), such as a built-in typical A device with an Android board card can implement the communication mode of the embodiment of the present application. In addition, although this application uses a multimedia play box as an example, it does not constitute an improper limitation of this application.

The so-called remote network driver interface specification is an implementation of the network driver interface specification (NDIS) based on USB. The actual function is TCP/IP over USB, which means that the USB device is regarded as a network card and TCP/IP is run on the USB device. Protocol to realize data transmission between devices.

In an alternative embodiment, the upper computer is connected to the device 1, and the device 1 is used as the network card of the upper computer, which can run the remote network driver interface specification and allocate an IP address for the upper computer.

Step S304, based on the first IP address, the target device establishes a first local area network with the next device.

Step S306: In the first local area network, the target device sends the data to the next device.

Through the above steps, the target device and the next device have established the first local area network, and then data can be sent to the next device.

The above steps of this embodiment will be further described below.

Optionally, before performing step S302, the target device receives the first IP address sent by the next device connected to it, the above method may further include the following steps:

Step S3011: Receive a configuration instruction, where the configuration instruction is set to configure the target device to configure the driver and software corresponding to the remote network driver interface specification.

In an optional solution, the above-mentioned driver may be an RNDIS interface driver, and the above-mentioned software may be a desktop software matching the next device connected to it, such as a display management software ViPlex Express matching a multimedia player box.

Step S3012, based on the configuration instruction, configure the driver and software.

After receiving the configuration instruction, the target device can configure the driver and corresponding software for itself.

In an optional solution, the aforementioned USB host module may include a USB host interface.

Fig. 4 shows a structure diagram of an optional data transmission device. As shown in Figure 4, the host computer is connected to the slave interface of the USB slave module of the next device through the host interface of the USB host module. For example, the host interface and the slave interface are directly connected through USB, and the USB typeB type of the multimedia player box The interface is directly connected with the host interface of the upper computer. The upper computer runs the desktop software ViPlex Express, which is matched with the multimedia player box, and installs the RNDIS driver. Since the multimedia player box runs RNDIS on the USB slave module, it virtualizes the USB slave module into a network card and assigns an IP address to the upper computer. Therefore, the multimedia player box establishes a TCP/IP local area network with the upper computer. Open the ViPlex Express software and search for the multimedia player box connected to the USB host module. ViPlex Express can obtain multimedia configuration information, set screen configuration parameters, and send multimedia information to multiple devices.

It is easy to notice that the operation of the above-mentioned solution of this embodiment is simple, and the operation is the same as the operation of the network cable connection.

It should be noted that the preferred implementation involved in the above-mentioned embodiment 2 of this application is the same as the solution provided in embodiment 1 and the application scenario implementation process, but it is not limited to the solution provided in embodiment 1.

Example 3

According to an embodiment of the present application, an embodiment of a method for transmitting data is provided, which can be applied to the last device of multiple cascaded devices. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although the logical sequence is shown in the flowchart, in some cases, The steps shown or described can be performed in a different order than here.

Fig. 5 is a flowchart of a method for transmitting data according to an embodiment of the present application. As shown in Fig. 5, the method includes the following steps:

Step S502: The target device sends a second IP address to the previous device connected to it, where the second IP address is allocated by the target device based on the remote network driver interface specification.

In an optional solution, the above-mentioned target device can be the last device of multiple cascaded devices, and can run Remote Network Driver Interface Specification (RNDIS), such as a typical Android board. The device of this application can implement the communication mode of the embodiment of the present application; the previous device mentioned above can be the same device as the target device, or it can be an intelligent terminal with control functions, such as a computer.

For example, device 2 is used as the target device to connect to the previous device (ie, device 1), and device 2 is used as the network card of device 1, which can run in RNDIS mode and assign an IP address to device 1.

Step S504: Based on the second IP address, the target device establishes a second local area network with the previous device.

Since the second IP address is sent by the target device to the previous device, the target device and the previous device can establish a second local area network.

Step S506: In the second local area network, the target device receives the data sent by the previous device.

Through the above steps, the target device and the previous device have established a second local area network, and then the data sent by the previous device can be received.

In an optional solution, the above-mentioned USB device module may include a USB device interface.

Fig. 6 shows a structure diagram of an optional data transmission device. As shown in Figure 6, the target device, the last device of multiple cascaded devices, is connected to the host interface of the USB host module of the previous device through the slave interface of the USB slave module, for example, the host interface and the slave interface Direct connection via USB. Since the target device runs RNDIS on the USB slave module, the USB slave module is virtualized into a network card, and the IP address is assigned to the previous device. Therefore, the target device establishes a TCP/IP local area network with the previous device and can receive transmissions from the previous device. The data.

It should be noted that the preferred embodiment involved in the above-mentioned embodiment 3 of this application is the same as the solution provided in embodiment 1 and the application scenario implementation process, but it is not limited to the solution provided in embodiment 1.

Example 4

According to an embodiment of the present application, a device for transmitting data is provided. It should be noted that the device for transmitting data in an embodiment of the present application can be used to execute the method for transmitting data provided in Embodiment 1 of the present application. The following describes a data transmission device provided in an embodiment of the present application.

Fig. 7 is a schematic diagram of an apparatus for transmitting data according to an embodiment of the present application. As shown in FIG. 7, the apparatus 700 is set in a target device, and the apparatus 700 includes: a first receiving module 702, a first establishing module 704, a second establishing module 706, and an executing module 708.

Wherein, the first receiving module 702 is configured to receive a first IP address sent by the next device connected to the target device, and send a second IP address to the previous device connected to the target device, where the first IP address and the first IP address The second IP address is allocated by the next device and the target device based on the remote network driver interface specification; the first establishment module 704 is set to establish a first local area network with the next device based on the first IP address; the second establishment module 706 is set In order to establish a second local area network with the previous device based on the second IP address; the execution module 708 is configured to receive data sent by the previous device in the second local area network, and send the data to the next device in the first local area network .

Optionally, the target device includes a USB host module and a USB slave module. The target device receives the first IP address sent by the next device connected to it, and sends the second IP address to the previous device connected to it, including: remote-based The network driver interface specification, the target device receives the first IP address through the USB host module, and sends the second IP address to the next device through the USB slave module.

Optionally, the above apparatus may further include: a setting module configured to set the USB slave module before the target device receives the first IP address through the USB host module and sends the second IP address to the next device through the USB slave module The working mode is the network card mode.

Optionally, the foregoing apparatus may further include: a second receiving module configured to receive an acquisition instruction after the target device establishes a second local area network with the previous device based on the second IP address, wherein the acquisition instruction is set to acquire the target device's Configuration information; return module, set to return configuration information to the previous device.

Optionally, if the data includes multimedia information, the above-mentioned apparatus may further include: a sending module configured to send the multimedia information to the display device by the target device, wherein the display device is matched with the target device.

It should be noted that the above-mentioned first receiving module 702, first establishing module 704, second establishing module 706, and executing module 708 correspond to steps S102 to S108 in Embodiment 1. The four modules and the corresponding steps implement The example of is the same as the application scenario, but is not limited to the content disclosed in the above embodiment 1.

Example 5

According to an embodiment of the present application, a device for transmitting data is provided. It should be noted that the device for transmitting data in an embodiment of the present application can be used to execute the method for transmitting data provided in the second embodiment of the present application. The following describes the data transmission device provided in the embodiment of the present application.

Fig. 8 is a schematic diagram of an apparatus for transmitting data according to an embodiment of the present application. As shown in FIG. 8, the apparatus 800 is set in the target device, and the apparatus 800 includes a first receiving module 802, an establishing module 804, and a sending module 806.

Among them, the first receiving module 802 is configured to receive the first IP address sent by the next device connected to the target device, where the first IP address is assigned by the next device based on the remote network driver interface specification; the establishment module 804 is configured to set In order to establish a first local area network with the next device based on the first IP address; the sending module 806 is configured to be in the first local area network and the target device sends data to the next device.

Optionally, the above-mentioned apparatus may further include: a second receiving module configured to receive a configuration instruction before the target device receives the first IP address sent by the next device connected to it, where the configuration instruction is set as the target device configuration and remote The driver and software corresponding to the network driver interface specification; the configuration module is set to configure the driver and software based on configuration instructions.

Optionally, the first receiving module includes: a first receiving sub-module configured to be based on a remote network driver interface specification, and the target device receives the first IP address through the USB host module.

It should be noted that the above-mentioned first receiving module 802, establishing module 804, and sending module 806 correspond to steps S402 to S406 in Embodiment 2. The examples and application scenarios implemented by these three modules are the same as those of the corresponding steps, but It is not limited to the content disclosed in Embodiment 2 above.

Example 6

According to an embodiment of the present application, a device for transmitting data is provided. It should be noted that the device for transmitting data in an embodiment of the present application can be used to execute the method for transmitting data provided in Embodiment 3 of the present application. The following describes a data transmission device provided in an embodiment of the present application.

Fig. 9 is a schematic diagram of an apparatus for transmitting data according to an embodiment of the present application. As shown in FIG. 9, the apparatus 900 may be set in a target device. The apparatus 900 includes a sending module 902, an establishing module 904, and a receiving module 906.

The sending module 902 is configured to send a second IP address to the previous device connected to the target device, where the second IP address is allocated by the target device based on the remote network driver interface specification; the establishing module 904 is set to be based on the second IP address. IP address, the target device establishes a second local area network with the previous device; the receiving module 906 is set to be in the second local area network, and the target device receives data sent by the previous device.

Optionally, the target device includes a USB slave module, and the sending module includes: a sending submodule, which is set based on the remote network driver interface specification, and the target device sends the second IP address to the next device through the USB slave module.

It should be noted that the foregoing sending module 902, establishing module 904, and receiving module 906 correspond to steps S502 to S506 in Embodiment 3. The examples and application scenarios implemented by these three modules are the same as those of the corresponding steps, but are not limited to The content disclosed in Example 3 above.

Example 7

In its most basic configuration, FIG. 10 is a structural diagram of a system for transmitting data according to an embodiment of the present application. For the purpose of description, the drawn architecture is only an example of a suitable environment, and does not impose any limitation on the scope of use or functions of this application. Nor should the system be interpreted as having any dependency or requirement on any component or combination of components shown in FIG. 10.

As shown in Figure 10, the data transmission system provided by this application includes:

Multiple cascaded devices, including the last device and other devices except the last device. Each of the remaining devices receives the first IP address sent by the next device connected to it, and sends it to the connected device. The previous device sends the second IP address, and the last device only sends the second IP address to the previous device connected to it. The first IP address and the second IP address are allocated based on the remote network driver interface specification.

The upper computer is connected to the first device among the other devices, and is set to receive the first IP address sent by the first device. Based on the first IP address, the upper computer and the first device establish a first local area network. In the local area network, the upper computer sends data to the first device, and the first device transmits the data to the second device connected to it, until it is transmitted to the last device in turn.

Example 8

In its most basic configuration, FIG. 11 is a structural diagram of a system for transmitting data according to an embodiment of the present application. For the purpose of description, the drawn architecture is only an example of a suitable environment, and does not impose any limitation on the scope of use or functions of this application. Nor should the system be interpreted as having any dependency or requirement on any component or combination shown in FIG. 11.

As shown in Figure 11, the data transmission system provided by this application includes:

In an optional solution, the above-mentioned devices may be the same device, such as a multimedia play box, which is not limited herein. Any data transmission between multiple identical devices is within the protection scope of this application.

In an optional solution, the above-mentioned upper computer may be an intelligent terminal with control function such as a computer.

Multiple display devices are matched with multiple cascaded devices one by one and set to display data.

In an optional solution, the above-mentioned display device may be a TV wall, a display, a display screen, etc., and the display device is controlled by a multimedia playback box that is matched with the display device.

For example, since the LED display screen needs to be displayed in various combinations on many occasions, the method is particularly suitable for this embodiment, and multiple LED display screens can be parameterized at the same time.

In the embodiment of the present application, the data transmission system mainly includes multiple cascaded devices, a host computer, and multiple display devices. Compared with the related technology, the devices in this application can all work in the network card mode, and provide an IP address for the previous device connected to it through the remote network driver interface specification, which solves the problem of communication between multiple devices in the related technology through the USB protocol. , Which leads to technical problems that are difficult to develop, avoids the problem that communication devices need to be configured one by one in advance, and achieves the goal of low development difficulty and simultaneous configuration of multiple devices. It is easy to notice that since the solutions of the various embodiments can be combined with each other, the above solutions implement TCP/IP communication between the devices through the USB host module and the USB slave module; by setting the USB slave module to the network card mode, the above A device is assigned an IP address; by transmitting the configuration information to the previous device, it is convenient for the host computer to issue configuration instructions; through the display device matched with the multimedia playback box, the multimedia information is displayed; each device is connected via USB, plug and play, no need More configuration greatly improves work efficiency.

The serial numbers of the foregoing embodiments of the present application are for description only, and do not represent the superiority or inferiority of the embodiments.

In the above-mentioned embodiments of the present application, the description of each embodiment has its own focus. For a part that is not described in detail in an embodiment, reference may be made to related descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are only illustrative. For example, the division of the units may be a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, units or modules, and may be in electrical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present application essentially or the part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , Including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes. .

The above are only the preferred embodiments of this application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of this application, several improvements and modifications can be made, and these improvements and modifications are also Should be regarded as the scope of protection of this application.

Industrial applicability

The solution provided by the embodiment of the present application should be set as the display field, which is especially suitable for the scenario of multimedia player box communication. In the embodiment of the present application, the remote network driver interface specification provides an IP address for the previous device connected to it, and receives the IP address provided by the next device connected to it, which solves the problem of communication between multiple devices in the related technology through USB Protocol communication leads to technical problems that are difficult to develop, avoids the problem of one-by-one configuration between communication devices, and achieves the technical effect of reducing the difficulty of development and configuring multiple devices at the same time.

Claims

A method of transmitting data, including:

The target device receives the first IP address sent by the next device connected to it, and sends a second IP address to the previous device connected to it, wherein the first IP address and the second IP address are respectively assigned by the downloader A device and the target device are allocated based on the remote network driver interface specification;

Based on the first IP address, the target device establishes a first local area network with the next device;

Based on the second IP address, the target device establishes a second local area network with the previous device;

In the second local area network, the target device receives the data sent by the previous device, and in the first local area network, the target device sends the data to the next device.
The method according to claim 1, wherein the target device includes a USB host module and a USB slave module, and the target device receives the first IP address sent by the next device connected to it, and sends it to the previous device connected to it. The second IP address includes:

Based on the remote network driver interface specification, the target device receives the first IP address through the USB host module, and sends the second IP address to the previous device through the USB slave module.
The method according to claim 2, wherein the target device receives the first IP address through the USB host module, and sends the second IP address to the previous device through the USB slave module Before the address, the method also includes:

The working mode of the USB slave module is set to the network card mode.
The method according to claim 1, wherein after the target device establishes a second local area network with the previous device based on the second IP address, the method further comprises:

Receiving an acquisition instruction, where the acquisition instruction is set to acquire configuration information of the target device;

Return the configuration information to the previous device.
The method according to claim 1, wherein, if the data includes multimedia information, the method further comprises:

The target device sends the multimedia information to a display device, where the display device is matched with the target device.
The method according to claim 1, wherein the target device, the previous device, and the next device are all connected via USB.
A method of transmitting data, including:

The target device receives the first IP address sent by the next device connected to it, where the first IP address is allocated by the next device based on the remote network driver interface specification;

Based on the first IP address, the target device establishes a first local area network with the next device;

In the first local area network, the target device sends the data to the next device.
The method according to claim 7, wherein before the target device receives the first IP address sent by the next device connected to it, the method further comprises:

Receiving a configuration instruction, where the configuration instruction is set to configure the target device to configure the driver and software corresponding to the remote network driver interface specification;

Based on the configuration instruction, the driver and the software are configured.
8. The method according to claim 7, wherein the target device comprises a USB host module, and the target device receiving the first IP address sent by the next device connected to the target device comprises:

Based on the remote network driver interface specification, the target device receives the first IP address through the USB host module.
A method of transmitting data, including:

The target device sends a second IP address to the previous device connected to it, where the second IP address is allocated by the target device based on the remote network driver interface specification;

Based on the second IP address, the target device establishes a second local area network with the previous device;

In the second local area network, the target device receives the data sent by the previous device.
The method according to claim 10, wherein the target device includes a USB slave module, and the target device sending the second IP address to the previous device connected to the target device includes:

Based on the remote network driver interface specification, the target device sends the second IP address to the previous device through the USB slave module.
A device for transmitting data is set in a target device, and the device includes:

The first receiving module is configured to receive a first IP address sent by the next device connected to the target device, and send a second IP address to the previous device connected to the target device, wherein the first IP The address and the second IP address are respectively allocated by the next device and the target device based on a remote network driver interface specification;

A first establishment module, configured to establish a first local area network with the next device based on the first IP address;

A second establishment module, configured to establish a second local area network with the previous device based on the second IP address;

The execution module is configured to receive the data sent by the previous device in the second local area network, and send the data to the next device in the first local area network.
A system for transmitting data, including:

Multiple cascaded devices, including the last device and the rest of the devices except the last device, wherein each of the remaining devices receives the first IP address sent by the next device connected to it, and sends it to it The last connected device sends a second IP address, and the last device only sends a second IP address to the previous device connected to it. The first IP address and the second IP address are based on the remote network driver interface specification distribute;

The upper computer is connected to the first device among the remaining devices, and is set to receive the first IP address sent by the first device, and based on the first IP address, the upper computer is connected to the first device. A device establishes a first local area network. In the first local area network, the host computer sends the data to the first device, and the first device transmits the data to the second device connected to it. Devices until the last device is transferred to the last device in turn.
A system for transmitting data, including:

Multiple cascaded devices, including the last device and the rest of the devices except the last device, wherein each of the remaining devices receives the first IP address sent by the next device connected to it, and sends it to it The last connected device sends a second IP address, and the last device only sends a second IP address to the previous device connected to it. The first IP address and the second IP address are based on the remote network driver interface specification distribute;

The upper computer is connected to the first device among the remaining devices, and is set to receive the first IP address sent by the first device, and based on the first IP address, the upper computer is connected to the first device. A device establishes a first local area network. In the first local area network, the host computer sends the data to the first device, and the first device transmits the data to the second device connected to it. Devices, until the transmission to the last device in turn;

Multiple display devices are matched with the multiple cascaded devices one by one, and are set to display the data.