WO2020088166A1

WO2020088166A1 - Video wireless transmission method, apparatus, and system, and device

Info

Publication number: WO2020088166A1
Application number: PCT/CN2019/108287
Authority: WO
Inventors: 赵祥军; 吕宗超
Original assignee: 歌尔股份有限公司
Priority date: 2018-10-29
Filing date: 2019-09-26
Publication date: 2020-05-07
Also published as: CN109600579A

Abstract

The embodiments of the present invention provide a video wireless transmission method, apparatus, and system, and a device. Said method comprises: acquiring signal quality information about the currently connected wireless signal; determining, according to preset signal quality evaluation indexes and the signal quality information, a corresponding video frame rate and video image resolution; acquiring channel use information about the currently connected wireless signal; and allocating, according to the channel use information, corresponding clients to the channels, so as to transmit a video according to the corresponding video frame rate and video image resolution. The present invention adjusts the frame rate and resolution of a video according to signal quality information, and allocates channels according to channel use conditions and the number of clients requesting connection, thereby ensuring high-quality and smooth transmission of the video while satisfying the users' basic viewing requirements.

Description

Video wireless transmission method, device, system and equipment

This application requires the priority of the Chinese patent application filed on October 29, 2018 in the China Patent Office with the application number 201811269251.4 and the invention titled "Video Wireless Transmission Method, Device, System and Equipment", the entire content of which is incorporated by reference in In this application.

Technical field

The present application relates to the field of computer technology, and in particular to a method, device, system and equipment for wireless video transmission.

Background technique

With the development of image acquisition technology, video wireless transmission technology application scenarios are becoming more and more extensive. For example, when the drone is collecting images, the video images obtained through the drone camera can be transmitted back to the control terminal or a handheld terminal that is wirelessly connected to it in real time.

In the prior art, the video transmission terminal can transmit video images to the client in real time through WiFi wireless signals, but as the distance between the video transmission terminal and the client becomes larger (for example, the drone flies away from the client) The video displayed on the client is stuck, which affects the user's viewing experience. For example, using a video capture device with low pixel quality cannot meet the user's demand for viewing high-definition images and affect the user's viewing experience.

Based on this, a solution capable of achieving stable and high-quality video transmission based on the quality of the currently connected wireless signal is needed.

Summary of the invention

In view of this, the embodiments of the present application provide a method, device, system and equipment for wireless video transmission. The present application requires a solution that can achieve stable and high-quality video transmission based on the quality of the currently connected wireless signal.

In a first aspect, an embodiment of the present application provides a wireless video transmission method, including:

Obtain the signal quality information of the currently connected wireless signal;

Determine the corresponding video frame rate and video image resolution according to the preset signal quality evaluation index and the signal quality information;

Acquiring channel usage information of the currently connected wireless signal;

According to the channel usage information, assign the corresponding client to the channel.

In a second aspect, an embodiment of the present application provides a video wireless transmission device, including:

The first obtaining module is used to obtain the signal quality information of the currently connected wireless signal;

The video information determination module is used to determine the corresponding video frame rate and video image resolution according to the preset signal quality evaluation index and the signal quality information;

A second acquisition module, configured to acquire channel usage information of the currently connected wireless signal;

The allocation module is configured to allocate the corresponding client to the channel according to the channel usage information, so as to perform video transmission according to the corresponding video frame rate and video image resolution.

In a third aspect, an embodiment of the present application provides a video wireless transmission system, including: a client and a video transmission terminal;

The video transmission terminal obtains the signal quality information of the currently connected wireless signal; determines the corresponding video frame rate and video image resolution according to the preset signal quality evaluation index and the signal quality information; obtains the currently connected Channel usage information of wireless signals; according to the channel usage information, assign the corresponding client to the channel;

The client receives video with a specified video frame rate and video image resolution through a specified channel.

According to a fourth aspect, an embodiment of the present application provides an electronic device, including: a memory and a processor; wherein,

The memory is used to store one or more computer instructions, where the one or more computer instructions implement the video wireless transmission method as described in the first aspect when executed by the processor.

An embodiment of the present application provides a computer storage medium for storing a computer program that implements the video wireless transmission method in the first aspect when the computer program is executed.

The video wireless transmission method provided by the embodiment of the present application obtains the signal quality information of the currently connected wireless signal. The wireless signal quality information mentioned here includes: signal strength, packet loss rate and throughput rate. For the evaluation indicators of the above signal quality information, and compare each evaluation indicator with the currently obtained signal quality information, it should be noted that when comparing the evaluation indicators, the first thing to consider is the signal Intensity, if all meet the index, video transmission can be carried out according to high frame rate and high resolution. Further, the current channel usage of the wireless signal is obtained, and the designated channel is allocated to the corresponding client to avoid affecting the video transmission effect. Through the above technical solution, the frame rate and resolution of the video are adjusted according to the signal quality information; at the same time, the channel is allocated according to the channel usage and the number of clients requesting connection, so as to meet the basic viewing needs of users Under the circumstances, ensure that the video can be transmitted smoothly with high quality.

BRIEF DESCRIPTION

In order to more clearly explain the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required in the embodiments or the description of the prior art. Obviously, the drawings in the following description These are some embodiments of the present application. For those of ordinary skill in the art, without paying any creative work, other drawings can be obtained based on these drawings.

1 is a schematic structural diagram of an example of an application of video wireless transmission provided by an embodiment of the present application;

2 is a schematic flowchart of a video wireless transmission method provided by an embodiment of the present application;

3 is a schematic flowchart of a method for solving a delayed transmission of a video image provided by an embodiment of this application;

4 is a schematic structural view of a video wireless transmission device provided by an embodiment of the present application;

FIG. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

detailed description

To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include the majority forms, unless the context clearly indicates other meanings, "a variety" Generally, at least two kinds are included, but the case where at least one kind is included is not excluded.

It should be understood that the term “and / or” used herein is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate: A exists alone, and A and B, there are three cases of B alone. In addition, the character “/” in this article generally indicates that the related objects are in an “or” relationship.

Depending on the context, the words "if" and "if" as used herein can be interpreted as "at ..." or "when ..." or "in response to determination" or "in response to detection". Similarly, depending on the context, the phrases "if determined" or "if detected (statement or event stated)" may be interpreted as "when determined" or "in response to determination" or "when detected (statement or event stated ) "Or" in response to detection (statement or event stated) ".

It should also be noted that the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a commodity or system that includes a series of elements includes not only those elements, but also those that are not explicitly listed Or other elements that are inherent to this commodity or system. Without more restrictions, the element defined by the sentence "include one ..." does not exclude that there are other identical elements in the commodity or system that includes the element.

In addition, the sequence of steps in the following method embodiments is only an example, not strictly limited.

The technical solution of the present application can be applied to wireless camera video transmission scenarios, for example, application scenarios of drone video collection and transmission. For ease of understanding, the following uses a drone to wirelessly transmit video based on WiFi signals as an example. Of course, in practical applications, there are various wireless data transmission methods such as Bluetooth, 4G, and 5G for wireless transmission of video.

As shown in Figure 1, it is assumed that there are multiple clients that need to obtain the video images collected by the drone in real time. The signal is detected, and the quality of the video image sent to each client is adjusted according to the detection result.

Specifically, each client is connected to the same video transmission device through WiFi, and the video transmission device obtains the IP address of each client, and performs signal testing and channel detection for different clients. If the test result is that the signal strength, throughput rate or packet loss rate of the current wireless signal does not meet the evaluation index, the frame rate of the video transmission is reduced and the resolution of the image is reduced; if it is satisfied, the image is performed at a high frame rate and high resolution transmission. Further, detecting the current channel usage and the number of clients connected to the current wireless signal; avoiding too many clients connecting to the current wireless signal at the same time, affecting the quality and efficiency of video image transmission. Through the above technical solutions, the video image transmission quality can be adjusted according to the actual wireless signal usage. When the wireless signal (such as WiFi) is good, the video image transmission can be performed at high resolution and high frame rate; when the wireless signal is not good , Appropriately reduce the resolution and frame rate. This can ensure that users can get a better video viewing experience.

FIG. 2 is a schematic flowchart of a video wireless transmission method provided by an embodiment of the present application. In this embodiment, the video wireless transmission method may be performed by a video transmission device carrying a WiFi module. The method includes the following steps:

201: Acquire signal quality information of the currently connected wireless signal.

In practical applications, each client is connected to the video transmission device through a WiFi signal, and the video transmission device obtains the IP address of each client, and obtains the signal quality information of the corresponding wireless signal for different IP addresses. Further, wireless signal detection is performed based on the IP address.

For example, getScanResults in WiFi Manager class can get a list collection, including all the information of surrounding wifi, including: ssid, level, etc.

202: Determine the corresponding video frame rate and video image resolution according to the preset signal quality evaluation index and the signal quality information.

The signal instruction evaluation index and signal quality information mentioned here are in a one-to-one correspondence. The corresponding video frame rate and video image resolution mentioned here can be understood as the video frame rate and video image resolution that match the current wireless signal quality; for example, the current wireless signal has strong signal strength and high throughput rate. When the packet loss rate is low, you can use high frame rate and high resolution to transmit video images; if the signal strength of the current wireless signal is weak, or the throughput rate is low, and the packet loss rate is high, then reduce the frame rate and Image resolution to ensure smooth transmission of video images.

203: Acquire channel usage information of the currently connected wireless signal.

For example, WiFi wireless signals usually have 13 channels. When selecting, you can select channels without bandwidth superimposition. The obtained channel usage information includes the number of users using each channel and the number of clients connected to the current wireless signal. In order to balance the video image quality and the smooth effect of video transmission, it is necessary to select the channel and limit the number of clients connected to the same wireless signal to avoid affecting the video transmission effect because too many clients use the wireless signal.

204: Assign the corresponding client to the channel according to the channel usage information, so as to perform video transmission according to the corresponding video frame rate and video image resolution.

In practical applications, since the number of channels each WiFi signal has is limited, and the data transmission capacity (bandwidth) is also limited. In order to ensure smooth and high-quality video transmission, channels are allocated here, and at the same time, the number of clients connected to WiFi signals is limited. To avoid too many clients connecting to the current wireless signal at the same time, causing the video image received by the client to freeze and other problems.

In one or more embodiments of the present application, before acquiring the signal quality information of the currently connected wireless signal, the method may further include: setting a detection task for the wireless signal; wherein the detection task includes Wireless signal detection cycle; acquiring the client IP address connected to the wireless signal; based on the client IP address, performing the detection task in order to obtain the signal quality information.

In practical applications, a task for real-time detection of the wireless signal can be set in the video transmission device. Detect the wireless signal of each IP address connected to the current wireless signal, for example, by polling, detect the wireless signal corresponding to an IP address every 1 second, and obtain signal quality information. Of course, a spot check can also be used, and only one or more signals are detected at a time.

In one or more embodiments of the present application, the acquiring the signal quality information of the currently connected wireless signal may specifically include: acquiring the signal strength of the currently connected wireless signal; acquiring the throughput rate of the currently connected wireless signal; acquiring The packet loss rate of the currently connected wireless signal.

In practical applications, in addition to the three indicators of signal strength, throughput rate, and packet loss rate, the current bit error rate and transmission rate of wireless signals can also be obtained to evaluate indicators of wireless signal data transmission capabilities. It should be noted that, when judging the data transmission capability of the wireless signal, the signal strength needs to be considered first, and the packet loss rate and throughput rate respectively.

In one or more embodiments of the present application, the preset signal quality indicators include: signal strength evaluation indicators, throughput rate evaluation indicators, and packet loss rate evaluation indicators.

As mentioned above, the signal quality index mentioned here is a one-to-one correspondence with each item of signal quality information. Correspondingly, if the signal quality information also includes bit error rate, transmission rate, etc. related information used to evaluate the data transmission capability of the current wireless signal, the signal quality index mentioned here also needs to include: bit error rate evaluation index, Transmission rate evaluation index, etc. The signal quality index can be divided into multiple index levels, so as to set the corresponding frame rate and resolution for each level.

In one or more embodiments of the present application, the determining the corresponding video frame rate and video image resolution according to the preset signal quality evaluation index and the signal quality information may specifically include: if the signal strength If it does not match the signal strength evaluation index, the video frame rate and the video image resolution are adjusted down.

It should be noted that the mismatch mentioned here can be understood as the current signal strength is less than the signal strength evaluation index, in other words, the current signal strength is weaker than the signal strength evaluation index, and does not meet the requirement of smoothly transmitting high-quality images. Specifically, for example, suppose that the currently acquired signal strength is A1, and the signal strength evaluation index is A2. If A1 is less than A2, the current signal strength and the signal strength evaluation index do not match; in other words, the current signal strength may be compared Weak, can not meet the needs of the process of high-quality video transmission. Therefore, in order to ensure that the video image can be smoothly transmitted to the corresponding client, the video frame rate and the image resolution in the video can be lowered, such as reducing the frame rate m to m / 2 and reducing the resolution n Is n / 2.

In one or more embodiments of the present application, the method further includes: if the signal strength matches the signal light evaluation index, determining whether the throughput rate matches the throughput index, and determining Whether the packet loss rate matches the packet loss rate evaluation index;

If the throughput rate does not match the throughput rate evaluation index, and / or the packet loss rate does not match the packet loss rate evaluation index, the video frame rate and the video image resolution are adjusted down.

If, after comparison, it is found that the signal strength can meet the requirements of smoothly transmitting high-quality video images, further, the packet loss rate and throughput rate are evaluated. As can be seen from the foregoing, when comparing and judging signal quality, it is first necessary to judge the signal strength of the current wireless signal, and secondly to compare and judge the packet loss rate and the throughput rate. In the embodiments of the present application, the packet loss rate can be compared and judged first, and the throughput rate is judged.

It should be noted that, in practical applications, the order of judging the packet loss rate and throughput rate can be adjusted according to actual needs. At the same time, other indicators can be compared and judged according to the actual application scenario, for example, the bit error rate. Therefore, the video frame rate and video image resolution can be adjusted appropriately according to the quality of the current wireless signal to ensure that the video can be smoothly transmitted to each client.

In one or more embodiments of the present application, if the signal strength matches the signal strength evaluation index, the throughput rate matches the throughput rate evaluation index, and the packet loss rate is If the packet rate evaluation index matches, the video frame rate and the video image resolution are adjusted up.

As mentioned above, the match here can be understood as a strong signal strength, a large throughput rate, and a low packet loss rate, which can realize the smooth transmission of high-quality video.

In one or more embodiments of the present application, the acquiring channel usage information of the currently connected wireless signal may specifically include: acquiring the number of clients of the currently connected wireless signal and the channel occupied by each of the clients Channel occupancy information.

According to the IP address, the number of clients currently connected to the wireless signal and the usage of each channel in the wireless signal are counted.

In one or more embodiments of the present application, the channel is allocated the corresponding client according to the channel usage information, so as to perform video transmission according to the corresponding video frame rate and video image resolution Specifically, it may include: according to the number of clients and the channel occupancy information, allocating a corresponding channel to a specified client, so as to perform video transmission according to the corresponding video frame rate and the video image resolution.

For example, if there is only one client connected to the current wireless signal, you can select one of the channels and use this channel to transmit video to the client. If there are 3 clients connected to the current wireless signal, channels 1, 6 and 13 or 11 can be preferentially selected to avoid mutual interference between the channels, thereby achieving stable and high-quality video transmission. If the number of clients connected to the current wireless signal is greater than 6, it is necessary to reject the addition of new clients to avoid the normal transmission of excessive client video. In practical applications, if the number of clients is greater than 3 and less than 6, the bandwidth can be reduced to half of the original. It should be noted that the number of clients listed here is only for distance description, and does not constitute a limitation on the technical implementation solution of the present application. In actual applications, the user can adjust the number of connected clients according to actual conditions.

In one or more embodiments of the present application, FIG. 3 is a schematic flowchart of an image transmission method for solving data delay provided by an embodiment of the present application. The details are as follows: 301: Acquire frame image transmission delay time: 302: According to the transmission delay time, store consecutive multi-frame images carrying a time stamp.

In practical applications, when the video transmission device sends video to the corresponding client, the problem of data transmission delay will inevitably occur, which will cause the client to receive images with frame skipping or frame loss, giving the user a feeling of lag , Affecting the user experience. To this end, a buffer area can be set on the client or the video transmission device, and the number of frame images that need to be buffered is determined according to the delay time length and the single frame time length. In order to ensure that the video cache and playback sequence are correct, timestamps need to be added to each frame, and transmitted and played in sequence according to the timestamp sequence.

Based on the same idea, an embodiment of the present application also provides a video wireless transmission device. As shown in FIG. 4, the device includes:

The first obtaining module 41 is used to obtain the signal quality information of the currently connected wireless signal;

The determining module 42 is configured to determine the corresponding video frame rate and video image resolution according to the preset signal quality evaluation index and the signal quality information;

The second obtaining module 43 is configured to obtain channel usage information of the currently connected wireless signal;

The allocation module 44 is configured to allocate the corresponding client to the channel according to the channel usage information, so as to perform video transmission according to the corresponding video frame rate and video image resolution.

Further, it further includes a detection module 45 for setting a detection task for the wireless signal; wherein the detection task includes a detection period for the current wireless signal;

Acquiring the IP address of the client connected to the wireless signal;

Based on the client IP address, the detection task is performed to obtain the signal quality information.

Further, the first obtaining module 41 is configured to obtain the signal strength of the currently connected wireless signal; obtain the throughput rate of the currently connected wireless signal; and obtain the packet loss rate of the currently connected wireless signal.

Further, the preset signal quality indicators include: signal strength evaluation indicators, throughput rate evaluation indicators, and packet loss rate evaluation indicators.

Further, if the signal strength does not match the signal strength evaluation index, the video frame rate and the video image resolution are adjusted down.

Further, if the signal strength matches the signal light evaluation index, it is determined whether the throughput rate matches the throughput rate index, and whether the packet loss rate and the packet loss rate evaluation index are determined Match

Further, if the signal strength matches the signal strength evaluation index, the throughput rate matches the throughput rate evaluation index, and the packet loss rate matches the packet loss rate evaluation index, the The video frame rate and the video image resolution are high.

Further, the second obtaining module 43 is configured to obtain the number of currently connected wireless signal clients and channel occupation information of the channels occupied by the clients.

Further, the allocation module 44 is configured to allocate a corresponding channel to a designated client according to the number of clients and the channel occupancy information, so as to perform according to the corresponding video frame rate and the video image resolution Video transmission.

Further, the transmission delay time of the frame image is acquired; according to the transmission delay time, a continuous multi-frame image carrying a time stamp is stored.

Based on the same idea, embodiments of the present application also provide a video wireless transmission system. As shown in FIG. 1, the system includes: a client 11 and a video transmission terminal 12;

The video transmission terminal 12 obtains the signal quality information of the currently connected wireless signal; determines the corresponding video frame rate and video image resolution according to the preset signal quality evaluation index and the signal quality information; obtains the current connection The channel usage information of the wireless signal; according to the channel usage information, assign the corresponding client to the channel;

The client 11 receives video with a specified video frame rate and video image resolution through a specified channel.

It should be noted that, in this system, multiple clients 11 may be simultaneously connected to the video transmission terminal 12 through wireless signals (such as WiFi).

Based on the same idea, an embodiment of the present application also provides an electronic device, as shown in FIG. 5, including: a memory 51 and a processor 52; wherein,

The memory 51 is used to store one or more computer instructions, wherein when the one or more computer instructions are executed by the processor 52, the video wireless transmission method as described in the above embodiment is implemented.

The device embodiments described above are only schematic, wherein 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, may be located One place, or can be distributed to multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement without paying creative labor.

Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by adding a necessary universal hardware platform, and of course, can also be implemented by a combination of hardware and software. Based on this understanding, the above technical solution can be embodied in the form of a computer product in essence or part of the contribution to the existing technology. This application can use one or more computer-usable storages containing computer-usable program code The form of computer program products implemented on media (including but not limited to disk storage, CD-ROM, optical storage, etc.).

This application is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the application. It should be understood that each flow and / or block in the flowchart and / or block diagram and a combination of the flow and / or block in the flowchart and / or block diagram may be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable coordinate determination device to produce a machine that enables the generation of instructions executed by the processor of the computer or other programmable coordinate determination device An apparatus for realizing the functions specified in one block or multiple blocks of one flow or multiple flows of a flowchart and / or one block or multiple blocks of a block diagram.

These computer program instructions may also be stored in a computer readable memory that can guide a computer or other programmable coordinate determination device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device The device implements the functions specified in one block or multiple blocks of the flowchart one flow or multiple flows and / or block diagrams.

These computer program instructions can also be loaded onto a computer or other programmable coordinate determination device, so that a series of operation steps are performed on the computer or other programmable device to generate computer-implemented processing, and thus the The instructions provide steps for implementing the functions specified in one block or multiple blocks of the flowchart one flow or multiple flows and / or block diagrams.

In a typical configuration, the computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

The memory may include non-permanent memory, random access memory (RAM) and / or non-volatile memory in computer-readable media, such as read only memory (ROM) or flash memory (flash RAM). Memory is an example of computer-readable media.

Computer-readable media, including permanent and non-permanent, removable and non-removable media, can store information by any method or technology. The information may be computer readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, read-only compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, Magnetic tape cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media can be used to store information that can be accessed by computing devices. As defined in this article, computer-readable media does not include temporary computer-readable media (transitory media), such as modulated data signals and carrier waves.

The embodiments in this specification are described in a parallel or progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments may refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant part can be referred to the description of the method.

Those of ordinary skill in the art can also understand that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two, in order to clearly explain the hardware and software. Interchangeability, in the above description, the composition and steps of each example have been described generally in terms of function. Whether these functions are executed in hardware or software depends on the specific application of the technical solution and design constraints. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented directly by hardware, a software module executed by a processor, or a combination of both. Software modules can be placed in random access memory (RAM), memory, read-only memory (ROM), electrically programmable ROM, electrically erasable and programmable ROM, registers, hard disks, removable disks, CD-ROMs, or all fields of technology. Any other known storage medium.

It should also be noted that in this article, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities or operations There is any such actual relationship or order. Moreover, the terms "include", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also those not explicitly listed Or other elements that are inherent to this process, method, article, or equipment. Without more restrictions, the element defined by the sentence "include one ..." does not exclude that there are other identical elements in the process, method, article or equipment that includes the element.

Claims

A video wireless transmission method, characterized in that the method includes:

Obtain the signal quality information of the currently connected wireless signal;

Determine the corresponding video frame rate and video image resolution according to the preset signal quality evaluation index and the signal quality information;

Acquiring channel usage information of the currently connected wireless signal;

According to the channel usage information, assign the corresponding client to the channel, so as to perform video transmission according to the corresponding video frame rate and video image resolution.
The method according to claim 1, wherein before acquiring the signal quality information of the currently connected wireless signal, the method further comprises:

Setting a detection task for the wireless signal; wherein the detection task includes a detection period for the current wireless signal;

Acquiring the IP address of the client connected to the wireless signal;

Based on the client IP address, the detection task is performed to obtain the signal quality information.
The method according to claim 1, wherein the acquiring signal quality information of the currently connected wireless signal includes:

Get the signal strength of the currently connected wireless signal;

Get the throughput rate of the currently connected wireless signal;

Get the packet loss rate of the currently connected wireless signal.
The method according to claim 3, wherein the preset signal quality indicators include: a signal strength evaluation indicator, a throughput rate evaluation indicator, and a packet loss rate evaluation indicator.
The method according to claim 4, wherein the determining the corresponding video frame rate and video image resolution according to the preset signal quality evaluation index and the signal quality information includes:

If the signal strength does not match the signal strength evaluation index, the video frame rate and the video image resolution are adjusted down.
The method of claim 5, further comprising:

If the signal strength matches the signal mild evaluation index, determine whether the throughput rate matches the throughput index, and determine whether the packet loss rate matches the packet loss rate evaluation index;

If the throughput rate does not match the throughput rate evaluation index, and / or the packet loss rate does not match the packet loss rate evaluation index, the video frame rate and the video image resolution are adjusted down.
The method of claim 6, further comprising:

If the signal strength matches the signal strength evaluation index, the throughput rate matches the throughput rate evaluation index, and the packet loss rate matches the packet loss rate evaluation index, then the Video frame rate and the video image resolution.
The method according to claim 1, wherein the acquiring channel usage information of the currently connected wireless signal comprises:

Obtain the number of currently connected wireless signal clients and channel occupancy information of the channels occupied by the clients.
The method according to claim 8, characterized in that, according to the channel usage information, the corresponding client is allocated to the channel so as to perform video according to the corresponding video frame rate and video image resolution Transmission, including:

According to the number of clients and the channel occupancy information, a corresponding channel is assigned to a specified client, so that video transmission is performed according to the corresponding video frame rate and the video image resolution.
The method according to claim 1, further comprising:

Get the frame image transmission delay time;

According to the transmission delay time, continuous multi-frame images carrying time stamps are stored.
A video wireless transmission device, characterized in that it includes:

The first obtaining module is used to obtain the signal quality information of the currently connected wireless signal;

The video information determination module is used to determine the corresponding video frame rate and video image resolution according to the preset signal quality evaluation index and the signal quality information;

A second acquisition module, configured to acquire channel usage information of the currently connected wireless signal;

The allocation module is configured to allocate the corresponding client to the channel according to the channel usage information, so as to perform video transmission according to the corresponding video frame rate and video image resolution.
A video wireless transmission system is characterized by comprising: a client and a video transmission terminal;

The video transmission terminal obtains the signal quality information of the currently connected wireless signal; determines the corresponding video frame rate and video image resolution according to the preset signal quality evaluation index and the signal quality information; obtains the currently connected Channel usage information of wireless signals; according to the channel usage information, assign the corresponding client to the channel;

The client receives video with a specified video frame rate and video image resolution through a specified channel.
An electronic device characterized by comprising: a memory and a processor; wherein,

The memory is used to store one or more computer instructions, wherein when the one or more computer instructions are executed by the processor, the video wireless transmission method according to any one of claims 1 to 10 is implemented.