CN109168011B - Network video live broadcast transfer equipment, transfer control system, method and medium - Google Patents

Abstract

The invention discloses a network video live broadcast relay device, a network video live broadcast relay control system, a method and a computer-readable storage medium. The network video live broadcast relay control method is applied to the network video live broadcast relay device. The network video live broadcast relay device includes and A mobile communication module that is communicatively connected between a video live broadcast device and a live broadcast server, the mobile communication module includes at least two network card communication sub-modules that respectively support different mobile communication systems; the network video live broadcast relay control method includes: receiving live video broadcast data sent by the live video broadcast device Stream; according to the predetermined live broadcast transfer mode, use at least two network card communication sub-modules that respectively support different mobile communication systems to forward the video live broadcast data stream to the live broadcast server. The invention solves the abnormal problems such as jamming and interruption during the live broadcast of the network video.

Description

Network video live broadcast relay device, relay control system, method and medium

technical field

The present invention relates to the field of communication technologies, and in particular, to a network video live broadcast relay device, a network video live broadcast relay control system, a network video live broadcast relay method and a computer-readable storage medium.

Background technique

Online video live broadcast means that people can watch live audio and video live at the remote end through the network, such as competitions, conferences, teaching, operations and so on. The core idea of online video live broadcast is to use the existing local area network, metropolitan area network and even World Wide Network conditions to realize real-time transmission of audio and video signals, and to achieve smooth viewing at the remote end.

With the continuous development of traditional Internet and mobile Internet, online video live broadcast has gradually entered the daily work and life of ordinary users, and has become an important entertainment and work channel for people's daily life and work.

However, existing network video live broadcasts, especially outdoor network video live broadcasts, often need to be performed in scenarios where there is no Wi-Fi signal or a weak Wi-Fi signal. In this case, a portable mobile communication device (for example, a mobile phone , tablet computer, etc.) or a video device equipped with a Subscriber Identification Module (SIM) card and connected to the mobile Internet, but in this scenario where there is no Wi-Fi signal or the Wi-Fi signal is weak Online video live broadcasts are easily plagued by problems such as complex network environments and unstable signals. Abnormal situations such as freezes and interruptions often occur during the live broadcast process.

SUMMARY OF THE INVENTION

The present invention provides a network video live broadcast relay device, a network video live broadcast relay control system, a network video live broadcast relay method, and a computer-readable storage medium, aiming to solve the problems caused by the complex network environment and unstable signals in the network video live broadcast process. Abnormal problems such as interruptions.

In order to achieve the above-mentioned purpose, the network video live broadcast relay equipment proposed by the present invention includes a memory, a processor, and a mobile communication module connected to the live video broadcast equipment and the live broadcast server in communication, and the mobile communication module includes at least two The network card communication sub-module of the system, the memory stores a live network video live relay control program that can be run on the processor, and the network video live broadcast relay control program is executed by the processor. The following method is implemented:

Receive the live video data stream sent by the live video device;

According to a predetermined live broadcast transfer mode, the video live broadcast data stream is forwarded to the live broadcast server by using the at least two network card communication sub-modules that respectively support different mobile communication systems.

Preferably, when the online video live broadcast relay control program is executed by the processor, the following method is also implemented:

Receive a control command sent by the user to enter a live broadcast transfer mode, switch to the live broadcast transfer mode indicated by the control command, and use the at least two network card communication sub-modules that support different mobile communication systems respectively to transfer the live video data stream. Sent to the live server.

Preferably, when the online video live broadcast relay control program is executed by the processor, the following method is also implemented:

According to the predetermined mapping relationship between the live relay mode and the start time point, when the start time point corresponding to a live broadcast relay mode arrives, switch to the live broadcast relay mode, and use the at least two network cards that support different mobile communication systems to communicate with each other. The sub-module forwards the live video data stream to the live server.

Preferably, when the online video live broadcast relay control program is executed by the processor, the following method is also implemented:

According to the pre-determined mode switching analysis rules, real-time or timing analysis whether to switch the live relay mode.

Preferably, the mode switching analysis rules include:

Determine whether the current load is greater than or equal to the preset first load threshold, and if so, confirm to switch the live relay mode; or,

Determine whether the current load is less than the preset second load threshold, and if so, confirm to switch the live relay mode; or,

Determine whether there is a network card communication sub-module whose signal strength is higher than the first preset signal strength threshold, and if so, confirm to switch the live relay mode; or,

The signal strength of each network card communication sub-module is judged, and if the signal strength of each network card communication sub-module is lower than the second preset signal strength threshold, it is confirmed to switch the live relay mode.

Preferably, the live broadcast relay mode includes a first live broadcast relay mode, and the step of using the at least two network card communication sub-modules that respectively support different mobile communication systems to forward the video live broadcast data stream to the live broadcast server includes:

Detecting the preset type communication parameters of each of the network card communication sub-modules in real time or regularly, and comparing the detected preset type communication parameters with preset thresholds respectively;

If the preset type communication parameter of the currently enabled network card communication sub-module is less than or equal to the preset threshold, and there is a network card communication sub-module whose preset type communication parameter is greater than the preset threshold in the currently disabled network card communication sub-module , the network card communication sub-module with the largest detected preset type communication parameter is used as the network card communication sub-module to be enabled;

Turn off the currently enabled network card communication sub-module, and enable the to-be-enabled network card communication sub-module to forward the live video data stream to the live server.

Preferably, the live broadcast transfer mode includes a second live broadcast transfer mode, and the step of using the at least two network card communication sub-modules that respectively support different mobile communication systems to forward the video live broadcast data stream to the live broadcast server includes:

Detecting the preset type communication parameters of each of the network card communication sub-modules in real time or regularly;

According to the detected parameter value ratio relationship of the preset type communication parameters of each of the network card communication sub-modules, determine the transfer percentage corresponding to each of the network card communication sub-modules;

Splitting the live video data stream into sub-data streams of the percentage of transit corresponding to each of the network card communication sub-modules;

Each of the network card communication sub-modules is driven to forward the corresponding sub-data stream to the live server respectively.

The present invention also provides a network video live broadcast relay control system. The network video live broadcast relay control system includes at least one network video live broadcast relay device, at least one live broadcast server communicatively connected to the network video live broadcast relay device, and connected to the network video live broadcast relay device. At least one live video device connected to the network video live relay device;

Wherein, the network video live broadcast relay device includes a memory, a processor, and a mobile communication module that is communicatively connected to the video live broadcast device and the live broadcast server, and the mobile communication module includes at least two network card communication sub-modules that respectively support different mobile communication systems , the memory stores a network video live broadcast relay control program that can be run on the processor, and the network video live broadcast relay control program is executed by the processor. The following method is implemented:

Receive the live video data stream sent by the live video device;

According to a predetermined live broadcast transfer mode, the video live broadcast data stream is forwarded to the live broadcast server by using the at least two network card communication sub-modules that respectively support different mobile communication systems.

The present invention also provides a method for relay control of online video live broadcast. The method for relay control of online video live broadcast is applied to a network video live broadcast relay device. The network video live broadcast relay device includes a mobile communication device that is communicatively connected to the video live broadcast device and the live broadcast server. module, the mobile communication module includes at least two network card communication sub-modules that respectively support different mobile communication systems; the network video live broadcast relay control method includes:

Receive the live video data stream sent by the live video device;

According to a predetermined live broadcast transfer mode, the video live broadcast data stream is forwarded to the live broadcast server by using the at least two network card communication sub-modules that respectively support different mobile communication systems.

Preferably, the network video live broadcast relay control method further includes:

Receive a control command sent by the user to enter a live broadcast transfer mode, switch to the live broadcast transfer mode indicated by the control command, and use the at least two network card communication sub-modules that support different mobile communication systems respectively to transfer the live video data stream. Sent to the live server.

Preferably, the network video live broadcast relay control method further includes:

According to the predetermined mapping relationship between the live relay mode and the start time point, when the start time point corresponding to a live broadcast relay mode arrives, switch to the live broadcast relay mode, and use the at least two network cards that support different mobile communication systems to communicate with each other. The sub-module forwards the live video data stream to the live server.

Preferably, the network video live broadcast relay control method further includes:

According to the pre-determined mode switching analysis rules, real-time or timing analysis whether to switch the live relay mode.

Preferably, the mode switching analysis rules include:

Determine whether the current load is greater than or equal to the preset first load threshold, and if so, confirm to switch the live relay mode; or,

Determine whether the current load is less than the preset second load threshold, and if so, confirm to switch the live relay mode; or,

Determine whether there is a network card communication sub-module whose signal strength is higher than the first preset signal strength threshold, and if so, confirm to switch the live relay mode; or,

The signal strength of each network card communication sub-module is judged, and if the signal strength of each network card communication sub-module is lower than the second preset signal strength threshold, it is confirmed to switch the live relay mode.

Preferably, the live broadcast relay mode includes a first live broadcast relay mode, and the step of using the at least two network card communication sub-modules that respectively support different mobile communication systems to forward the video live broadcast data stream to the live broadcast server includes:

Detecting the preset type communication parameters of each of the network card communication sub-modules in real time or regularly, and comparing the detected preset type communication parameters with preset thresholds respectively;

If the preset type communication parameter of the currently enabled network card communication sub-module is less than or equal to the preset threshold, and there is a network card communication sub-module whose preset type communication parameter is greater than the preset threshold in the currently disabled network card communication sub-module , the network card communication sub-module with the largest detected preset type communication parameter is used as the network card communication sub-module to be enabled;

Turn off the currently enabled network card communication sub-module, and enable the to-be-enabled network card communication sub-module to forward the live video data stream to the live server.

Preferably, the live broadcast transfer mode includes a second live broadcast transfer mode, and the step of using the at least two network card communication sub-modules that respectively support different mobile communication systems to forward the video live broadcast data stream to the live broadcast server includes:

Detecting the preset type communication parameters of each of the network card communication sub-modules in real time or regularly;

According to the detected parameter value ratio relationship of the preset type communication parameters of each of the network card communication sub-modules, determine the transfer percentage corresponding to each of the network card communication sub-modules;

Splitting the live video data stream into sub-data streams of the percentage of transit corresponding to each of the network card communication sub-modules;

Each of the network card communication sub-modules is driven to forward the corresponding sub-data stream to the live server respectively.

The present invention also provides a computer-readable storage medium, where the computer-readable storage medium stores a network video live broadcast relay control program, and the network video live broadcast relay control program can be executed by at least one processor, so that the at least one live broadcast relay control program can be executed by the at least one processor. The processor executes the following methods:

Receive the live video data stream sent by the live video device;

According to a predetermined live broadcast transfer mode, at least two network card communication sub-modules that respectively support different mobile communication systems are used to forward the video live broadcast data stream to the live broadcast server.

According to the technical solution of the present invention, a live broadcast relay mode is set in the network video live broadcast relay device, and the network video live broadcast relay device can arrive at a preset start time point according to receiving a control instruction sent by a user to enter a live broadcast relay module, or via The preset mode switching analysis rule is analyzed and confirmed to enter the live broadcast transfer mode; after entering the live broadcast transfer mode, use the at least two communication sub-modules that support different network cards to transfer the received live video data stream. Live server for communication connection. Compared with the prior art, in the scenario where there is no Wi-Fi signal or the Wi-Fi signal is weak, the network video live broadcast relay device can use one or more network card communication sub-modules to transmit the video sent by the live broadcast device. The live data stream is relayed to be sent to the live server to ensure the stable and smooth live broadcast of the live server; in a scenario where the signal of the network card communication sub-module of a mobile communication system is weak, it can be driven by one or more other different mobile communication systems. The network card sub-module of the network card forwards the live video data stream sent by the live broadcast device to the live broadcast server, so as to ensure the stable and smooth live broadcast of the live broadcast server; therefore, this solution enables the live broadcast of the network video to maintain the quality of the live broadcast of the network video in various scenarios. Stable and smooth, it solves the problem that live broadcast is prone to stutter and interruption caused by complex network environment and unstable signal conditions.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained according to the structures shown in these drawings without creative efforts.

1 is a schematic flowchart of a first embodiment of a method for relaying control of online video live broadcasting according to the present invention;

FIG. 2 is a schematic flowchart of a second embodiment of a method for relay control of live web video according to the present invention;

FIG. 3 is a schematic flowchart of a third embodiment of a method for relay control of live online video according to the present invention;

FIG. 4 is a schematic flowchart of a fourth embodiment of a method for relay control of online video live broadcasting according to the present invention;

FIG. 5 is a schematic flowchart of a fifth embodiment of a method for relay control of online video live broadcasting according to the present invention;

FIG. 6 is a schematic flowchart of a sixth embodiment of a method for relay control of live web video according to the present invention;

FIG. 7 is a schematic diagram of the running environment of an embodiment of a network video live broadcast relay control program according to the present invention;

8 is a program module diagram of an embodiment of a network video live broadcast relay control program according to the present invention;

Fig. 9 is the program module diagram of the second embodiment of the network video live broadcast relay control program of the present invention;

FIG. 10 is a program module diagram of the third embodiment of the relay control program for live broadcast of network video according to the present invention.

The realization, functional characteristics and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples are only used to explain the present invention, but not to limit the scope of the present invention.

The present invention provides a network video live broadcast relay control method. The network video live broadcast relay control method is applied to a network video live broadcast relay device. The network video live broadcast relay device includes a mobile communication module. The mobile communication module is respectively connected with the video live broadcast device and the live broadcast device. Server communication connection; among them, the mobile communication module is connected with the mobile communication equipment through the mobile communication base station (mobile communication base station refers to a form of radio station, which means that in a certain radio coverage area, through the mobile communication switching center) A radio transceiver station that transmits information between them) is communicatively connected to the live broadcast server. The mobile communication module includes at least two network card communication sub-modules that respectively support different mobile communication systems (for example, the mobile communication module may include a mobile communication network that supports the operation of a first mobile communication operator (for example, China Mobile Communications Corporation) The network card communication sub-module (for example, the 4G network card communication sub-module, that is, the network card communication sub-module that supports the fourth generation mobile communication technology), supports the mobile communication operated by the second mobile communication operator (for example, China United Network Communication Group Co., Ltd. The network card communication sub-module of the communication network supports the network card communication sub-module of the mobile communication network operated by a third mobile communication operator (for example, China Telecom Group Co., Ltd.). There is short-distance wireless communication between the network video live broadcast relay device and the video live broadcast device, such as communication through Wi-Fi (that is, the network video live broadcast relay device opens a hotspot for the video broadcast device to use), Bluetooth, NFC, zigbee, etc. The mobile communication module further includes a module corresponding to at least one of the above-mentioned near field communication methods.

As shown in FIG. 1 , FIG. 1 is a schematic flowchart of a first embodiment of a method for relay control of a live online video broadcast according to the present invention.

In this embodiment, the network video live broadcast relay control method includes:

In step S10, the live video live relay device receives the live video data stream sent by the live video device.

Step S20, the network video live broadcast relay device forwards the live video data stream to the live broadcast server by using the at least two network card communication sub-modules that respectively support different mobile communication systems according to a predetermined live broadcast relay mode.

The network video live broadcast relay device has at least one predetermined live broadcast relay mode. In this embodiment, the network video live broadcast relay device is made to work in the predetermined live broadcast relay mode. According to the predetermined live broadcast relay mode, the at least two live broadcast relay modes are used. Support different network card communication sub-modules to forward the received live video data stream to the live server of the communication connection, which can drive one or more network card communication sub-modules to work according to the live relay mode, and transfer the received live video data stream. It is relayed to the live server of the communication connection.

As shown in FIG. 2 , FIG. 2 is a schematic flowchart of a second embodiment of a method for relaying control of live web video according to the present invention.

In this embodiment, the network video live broadcast relay control method further includes:

Step S30, the network video live relay device receives the control instruction sent by the user to enter a live relay mode, switches to the live relay mode indicated by the control instruction, and utilizes the at least two network card communication sub-modules that support different mobile communication systems respectively. The live video data stream is forwarded to the live server.

When the user wants the network live video relay device to enter a certain live broadcast relay mode to work, the user sends a control command to enter the live broadcast relay mode to the network video live relay device. After the network video live relay device receives the control command, it switches to In the live broadcast transfer mode, the video live broadcast data stream is forwarded to the live broadcast server by using the at least two network card communication sub-modules that respectively support different mobile communication systems.

As shown in FIG. 3 , FIG. 3 is a schematic flowchart of a third embodiment of a method for relay control of live online video according to the present invention.

In this embodiment, the network video live broadcast relay control method further includes:

Step S40, according to the predetermined mapping relationship between the live broadcast relay mode and the start time point, when a start time point corresponding to a live broadcast relay mode arrives, switch to the live broadcast relay mode, and use the at least two to support different mobile communication systems respectively. The network card communication sub-module forwards the live video data stream to the live server.

The network video live broadcast relay device stores a predetermined mapping relationship table between the live broadcast relay mode and the start time point (for example, the first start time point T1 corresponds to the live broadcast relay mode A, the second start time point T2 corresponds to the live broadcast relay mode B, and the first start time point T2 corresponds to the live broadcast relay mode B. The third activation time point T3 corresponds to the live broadcast relay mode C). When a start time point arrives, the online video live broadcast relay device determines the live broadcast relay mode corresponding to the current start time point by querying the mapping relationship table between the live broadcast relay mode and the start time point, and the network video live broadcast relay device switches to the determined live broadcast relay. A module, using the at least two network card communication sub-modules that respectively support different mobile communication systems to forward the video live broadcast data stream to the live broadcast server.

As shown in FIG. 4 , FIG. 4 is a schematic flowchart of a fourth embodiment of a method for relay control of live online video broadcasting according to the present invention.

In this embodiment, the network video live broadcast relay control method further includes:

Step S50, the network video live broadcast device analyzes whether to switch the live broadcast relay mode in real time or regularly according to a predetermined mode switching analysis rule.

A set of mode switching analysis rules is pre-determined in the network video live broadcast transfer device, and the network video live broadcast transfer device analyzes whether to switch the live broadcast transfer mode in real time or regularly according to the mode switch analysis rules.

In this embodiment, the mode switching analysis rule may include:

Determine whether the current load is greater than or equal to the preset load threshold, and if so, confirm to switch the live relay mode;

Determine whether the current load is less than a preset second load threshold, and if so, confirm to switch the live relay mode; wherein, the second load threshold may be less than the first load threshold;

Or, determine whether there is a network card communication sub-module whose signal strength is higher than the first preset signal strength threshold, and if so, confirm to switch the live relay mode;

Or, judging the signal strength of each network card communication sub-module, if the signal strength of each network card communication sub-module is lower than the second preset signal strength threshold, then confirm to switch the live relay mode; wherein, the second preset signal strength threshold may be less than The first preset signal strength threshold.

The load can be the amount of data that needs to be forwarded per unit time, and the network video live broadcast relay device can support multiple video live broadcast devices to perform live broadcast at the same time.

If the network video live broadcast relay device is confirmed to be switched to the live broadcast relay mode after analysis, it will switch to the corresponding live broadcast relay mode.

For example, the network video live broadcast relay device can set the default live broadcast relay mode to the normal mode (which can be the first live broadcast relay mode described later). In the normal mode, the network video live broadcast relay device can select a channel with better signals for data transmission For forwarding, when it is confirmed that the signal of the currently used network card communication sub-module is not good, the network video live broadcast relay device switches to the network card communication sub-module with better signal for forwarding. Or, for example, when the current load is relatively large (for example, whether the current load is greater than or equal to the preset first load threshold), or the signal of each network card communication sub-module is not good (for example, the signal strength of each network card communication sub-module is low At the second preset signal strength threshold), the data forwarding capability of any network card communication sub-module cannot meet the current data forwarding requirements, and the network video live broadcast relay device switches to another live broadcast relay mode (which can be described later. 2 live transfer mode), switch to enabling multiple (for example, 2, 3) network card communication sub-modules at the same time to forward data together to meet the current data forwarding requirements. The data forwarding amount undertaken by each network card communication sub-module can be based on each The signal strength of each network card communication sub-module (which can be directly reflected by the communication parameter value) is dynamically allocated to achieve load balancing.

It should be noted that, the above-mentioned steps S30, S40 and S50 of the present invention have no order, and belong to parallel steps.

In the technical solution of this embodiment, a live broadcast relay mode is set in the network video live broadcast relay device, and the network video live broadcast relay device can arrive at a preset start time point according to receiving a control instruction sent by a user to enter a live broadcast relay module, or After the preset mode switching analysis rules are analyzed and confirmed, enter the live broadcast transfer mode; after entering the live broadcast transfer mode, use the network card communication sub-modules that support different network cards to forward the received live video data stream to the communication connection. Live server. Compared with the prior art, in the scenario where there is no Wi-Fi signal or the Wi-Fi signal is weak, the network video live broadcast relay device can use one or more network card communication sub-modules to transmit the video sent by the live broadcast device. The live data stream is relayed to be sent to the live server to ensure the stable and smooth live broadcast of the live server; in a scenario where the signal of the network card communication sub-module of a mobile communication system is weak, it can be driven by one or more other different mobile communication systems. The network card sub-module of the network card forwards the live video data stream sent by the live broadcast device to the live broadcast server, so as to ensure the stable and smooth live broadcast of the live broadcast server; therefore, this solution enables the live broadcast of the network video to maintain the quality of the live broadcast of the network video in various scenarios. Stable and smooth, it solves the problems of live streaming that is susceptible to complex network environment and unstable signal, which causes the live streaming to be stuck and interrupted.

As shown in FIG. 5 , FIG. 5 is a schematic flowchart of a fifth embodiment of a method for relaying control of live online video broadcasting according to the present invention.

In the method for relay control of online video live broadcast in this embodiment, the live broadcast relay mode includes a first live broadcast relay mode, and the live video data stream is relayed by using the at least two network card communication sub-modules that respectively support different mobile communication systems The steps to send to the live server include:

Step S01, the network video live relay device detects the preset type communication parameters of each of the network card communication sub-modules in real time or regularly, and compares the detected preset type communication parameters with preset thresholds respectively.

Wherein, the preset type of communication parameters may be: one of communication parameters reflecting network quality, such as communication signal strength, data upload or download speed, round-trip delay (Round-Trip Time, RTT), and data packet loss rate, etc., or a combination of several; the greater the preset type of communication parameter of the network card communication sub-module, the faster and more stable the network card communication sub-module performs the relay processing of the live video data stream. A threshold (ie, a preset threshold) of a preset type of communication parameter is preset in the network video live relay device, and the preset threshold is a standard used to judge the network quality of the network card communication sub-module. The preset value of the network card communication sub-module When the type communication parameter exceeds the preset threshold, the live video data stream can be relayed through the network card communication sub-module to ensure that the live video data stream sent to the live server can maintain the stable and smooth playback of the live video. The playback of the live video is stuck, interrupted, or other abnormal situations. In this embodiment, the network video live relay device detects the preset type communication parameters of each network card communication sub-module in real time or regularly, and compares the detected preset type communication parameters of each network card communication sub-module with the preset threshold value. Compare to determine the size relationship between the preset type communication parameters of the currently enabled network card communication sub-modules and the preset threshold, and the preset type communication parameters of the currently disabled network card communication sub-modules are respectively The preset threshold value The size relationship, that is, to determine the network quality of the currently activated network card communication sub-module and the network quality of the remaining network card communication sub-modules.

Step S02, if the network video live relay device determines that the preset type communication parameter of the currently enabled network card communication sub-module is less than or equal to the preset threshold, and there is a preset type communication parameter in the currently disabled network card communication sub-module that is greater than the preset type communication parameter. If the network card communication sub-module with the threshold is set, the network card communication sub-module with the largest detected communication parameter of the preset type is used as the network card communication sub-module to be activated.

In the comparison result obtained by comparing the preset type communication parameters of each network card communication sub-module with the preset threshold by the live network video live relay device, if the preset type communication parameter of the currently enabled network card communication sub-module is less than or equal to the preset type threshold, and there is a network card communication sub-module whose preset type communication parameter is greater than the preset threshold in the currently disabled network card communication sub-module, it means that the network quality of the currently enabled network card communication sub-module is poor, and the live video data stream The transfer processing speed is not enough for the live server to maintain the stable and smooth playback of live video, and there is a network card with better network quality in the currently disabled network card communication sub-module, and the transfer processing speed of the live video data stream can make the live server live broadcast smoothly. Communication sub-module; at this time, the network card communication sub-module with the largest detected preset type communication parameter (that is, the best network quality) is screened out from the network card communication sub-module that is currently not enabled by the network video live relay device, and the filter is selected. The outgoing network card communication sub-module is used as the network card communication sub-module to be enabled.

Step S03, the network video live relay device closes the currently enabled network card communication sub-module, and enables the to-be-enabled network card communication sub-module to forward the live video data stream sent by the live video device to the live server.

After determining the network card communication sub-module to be enabled, the network video live broadcast relay device closes the currently enabled network card communication sub-module, and simultaneously starts the network card communication sub-module to be enabled, and uses the enabled network card communication sub-module to be enabled. The data stream is relayed to forward the live video data stream sent by the live video device to the live server.

In the solution of this embodiment, in the first live broadcast relay mode, the network video live broadcast equipment detects the preset type communication parameters of each network card communication sub-module in real time or regularly, and each detected preset type communication parameter is respectively associated with the preset type. Set a threshold comparison to determine whether the current network quality of each network card communication sub-module meets the requirements for ensuring smooth live broadcast of the live server. The network card communication sub-module with the best current network quality is selected from the non-enabled network card communication sub-module to replace the currently enabled network card communication sub-module. In this way, the network card communication sub-module with better network quality can be selected to perform live video streaming. Transit processing, so as to ensure the smooth live broadcast of the live server.

As shown in FIG. 6 , FIG. 6 is a schematic flowchart of a sixth embodiment of a method for relay control of online video live broadcast according to the present invention.

In the network video live broadcast relay control method of this embodiment, the live broadcast relay mode includes a second live broadcast relay mode, and the live video data is transmitted by using the at least two network card communication sub-modules that respectively support different mobile communication systems. The steps of forwarding the stream to the live server include:

Step S11 , the live network video live relay device detects the preset type communication parameters of each of the network card communication sub-modules in real time or regularly.

The preset type of communication parameters may be: one or more of communication parameters reflecting network quality, such as communication signal strength, data upload or download speed, round-trip delay (Round-Trip Time, RTT), and data packet loss rate. combination.

Step S12, the network video live relay device determines the relay percentage corresponding to each of the network card communication sub-modules according to the detected parameter value ratio relationship of the preset type of communication parameters of each of the network card communication sub-modules.

For example, each network card communication sub-module is X1, X2 and X3 respectively, and the parameter values of the preset communication parameters of each network card communication sub-module are a1, a2, a3 respectively, then the network video live relay device determines that each network card communication sub-module corresponds to The transit percentages are a1/(a1+a2+a3), a2/(a1+a2+a3), a3/(a1+a2+a3).

Step S13, the live video live relay device divides the live video data stream into sub-data streams with a percentage of relay corresponding to each of the network card communication sub-modules.

Step S14, the network video live broadcast relay device drives each of the network card communication sub-modules to forward the corresponding sub-data streams to the live broadcast server respectively.

For example, the relay percentages corresponding to each network card communication sub-module (including network card communication west modules X1, X2 and X3) determined by the network video live relay device are: The corresponding relay percentage is b2, and the relay percentage corresponding to the network card communication sub-module X3 is b3. The network video live broadcast relay device divides the live video data stream sent by the video live broadcast device into the first sub-data stream with a percentage of b1, and the percentage is The first sub-data stream of b2 and the third sub-data stream whose percentage is b3, the sum of b1, b2, and b3 is 100%; the network video live broadcast relay device drives the network card communication sub-module X1 to relay and send the corresponding first sub-data stream to The live server drives the network card communication sub-module X2 to transmit the corresponding second sub-data stream to the live server, and drives the network card communication sub-module X3 to transmit the corresponding third sub-data stream to the live server.

In this embodiment, in the second live broadcast relay mode, the network video live broadcast relay device dynamically monitors the preset type communication parameters of each network card communication sub-module, and determines each network card according to the monitored parameter value ratio relationship of the preset type communication parameters. The relay percentage corresponding to the communication sub-module, the network video live relay device divides the live video data stream sent by the video live device according to the relay percentage corresponding to each network card communication sub-module, so that each network card communication sub-module forwards and sends the corresponding data stream. The sub data stream is sent to the live server. The solution of this embodiment monitors the network quality of each network card communication sub-module, and evenly allocates the size of the sub-data stream sent by the relay according to the network quality, so as to drive multiple network card communication sub-modules to cooperate to forward the live video data stream and communicate with a single network card. The sub-module forwards the live video data stream, which can support a higher-definition live video data stream, and when the network quality of multiple network card communication sub-modules is not very good, it can better ensure the smooth and stable live broadcast of the live server.

With reference to the fourth to sixth embodiments, it can be found that in the solution of the present invention, the network live relay device can flexibly switch the live broadcast relay mode according to the current network quality and load of each network card communication sub-module, and can flexibly switch the live broadcast relay mode in the first live broadcast relay mode. and the second live transfer mode, select the live transfer mode that is more suitable for the current network conditions and load.

For example, in the first live broadcast relay mode, the network live broadcast relay device analyzes and obtains that the current load is greater than or equal to the preset first load threshold (the specific value of the first load threshold can be set so that any network card communication sub-module cannot bear it alone). If the load is relatively large, and it is difficult for a single network card communication sub-module to bear the load, the live transfer mode can be switched to the second live transfer mode;

Or, in the second live transfer mode, if the analysis finds that the current load is less than the preset second load threshold (the specific value of the second load threshold can be set to a value that any network card communication sub-module can bear alone, and can According to the dynamic adjustment of the signal strength of each network card communication sub-module), the live broadcast relay mode can be switched to the first live broadcast relay mode;

Or, in the second live transfer mode, if the analysis finds that there is a network card communication sub-module whose signal strength is higher than the first preset signal strength threshold (the specific value of the first preset signal strength threshold can be set to be able to fully bear the current load, and can be dynamically adjusted according to the current load), then confirm that the switch of the live broadcast relay mode is the first live broadcast relay mode;

Or, in the first live transfer mode, if the analysis finds that the signal strength of each network card communication sub-module is lower than the second preset signal strength threshold (the specific value of the second preset signal strength threshold can be set to not be able to bear the current load. , and can be dynamically adjusted according to the current load), then confirm to switch the live broadcast relay mode to the second live broadcast relay mode.

In addition, the present invention also provides a network video live broadcast relay control program 10 .

Please refer to FIG. 7 , which is a schematic diagram of the running environment of an embodiment of the network video live broadcast relay control program 10 of the present invention.

In this embodiment, the network video live broadcast relay control program 10 is installed and run in the network video live broadcast relay device 1 . The network video live broadcast relay device 1 may be a computing device such as a desktop computer, a notebook, a palmtop computer, and a server. The network video live broadcast relay device 1 may include, but is not limited to, a memory 11, a processor 12 and a mobile communication module 14. The network video live broadcast relay device 1 uses the mobile communication module 14 to communicate with the live video broadcast device and the live broadcast server respectively. The communication module 14 includes a plurality of network card communication sub-modules that respectively support different mobile communication systems (for example, the mobile communication module may include a network card that supports the mobile communication network operated by the first mobile communication operator (for example, China Mobile Communications Corporation). A communication sub-module (for example, a 4G network card communication sub-module, that is, a network card communication sub-module supporting the fourth-generation mobile communication technology), supporting a mobile communication network operated by a second mobile communication operator (for example, China United Network Communications Group Co., Ltd.) The network card communication sub-module supports the network card communication sub-module of the mobile communication network operated by a third mobile communication operator (for example, China Telecom Group Co., Ltd.). FIG. 7 only shows the live web video relay device 1 having components 11-14, but it should be understood that it is not required to implement all the illustrated components, and more or less components may be implemented instead.

In some embodiments, the memory 11 may be an internal storage unit of the network video live broadcast relay device 1 , such as a hard disk or a memory of the network video live broadcast relay device 1 . In other embodiments, the memory 11 may also be an external storage device of the network video live broadcast relay device 1, such as a plug-in hard disk equipped on the network video live broadcast relay device 1, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, flash memory card (Flash Card), etc. Further, the memory 11 may also include both an internal storage unit of the network video live broadcast relay device 1 and an external storage device. The memory 11 is used to store application software and various data installed in the live network video broadcast relay device 1 , such as program codes of the network video live broadcast relay control program 10 and the like. The memory 11 may also be used to temporarily store data that has been output or is to be output.

In some embodiments, the processor 12 may be a central processing unit (Central Processing Unit, CPU), a microprocessor or other data processing chips, for running program codes or processing data stored in the memory 11, for example, performing live web video Transit control program 10 and so on.

The network video live relay device 1 may further include a display 13, which in some embodiments may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an organic light-emitting diode (Organic Light-Emitting Diode, OLED) touch device, and the like. The display 13 is used to display the information processed in the network video live broadcast relay device 1 and to display a visual user interface. The components 11-13 of the network video live broadcast relay device 1 communicate with each other through the system bus.

Please refer to FIG. 8 , which is a program module diagram of an embodiment of the relay control program 10 for live broadcast of network video according to the present invention. In this embodiment, the network video live broadcast relay control program 10 can be divided into one or more modules, one or more modules are stored in the memory 11, and are executed by one or more processors (in this embodiment, the processor 12) performed to complete the present invention. For example, in FIG. 8 , the network video live broadcast relay control program 10 can be divided into a receiving module 101 and a forwarding module 102 . The modules referred to in the present invention refer to a series of computer program instruction segments capable of completing specific functions, which are more suitable than programs to describe the execution process of the network video live broadcast relay control program 10 in the network video live broadcast relay device 1, wherein:

The receiving module 101 is configured to receive a live video data stream sent by a live video device.

The forwarding module 102 is configured to forward the live video data stream to the live server by using the at least two network card communication sub-modules that respectively support different mobile communication systems according to a predetermined live broadcast transfer mode.

The network video live broadcast relay device has at least one predetermined live broadcast relay mode. In this embodiment, the network video live broadcast relay device is made to work in the predetermined live broadcast relay mode. According to the predetermined live broadcast relay mode, the at least two live broadcast relay modes are used. Support different network card communication sub-modules to forward the received live video data stream to the live server of the communication connection, which can drive one or more network card communication sub-modules to work according to the live relay mode, and transfer the received live video data stream. It is relayed to the live server of the communication connection.

Further, the network video live broadcast relay control program 10 in this embodiment further includes a first switching module 103;

The first switching module 103 is configured to switch to the live transfer mode indicated by the control instruction when receiving a control instruction for entering a live transfer mode issued by the reverse user, and utilize the at least two network cards that support different mobile communication systems respectively. The communication sub-module forwards the live video data stream to the live server.

When the user wants the network live video relay device to enter a certain live broadcast relay mode to work, the user sends a control command to enter the live broadcast relay mode to the network video live relay device. After the network video live relay device receives the control command, it switches to In the live broadcast transfer mode, the video live broadcast data stream is forwarded to the live broadcast server by using the at least two network card communication sub-modules that respectively support different mobile communication systems.

Further, the network video live broadcast relay control program 10 in this embodiment further includes a second switching module 104;

The second switching module 104 is configured to, according to the predetermined mapping relationship between the live transfer mode and the start time point, switch to the live broadcast transfer mode when the start time point corresponding to the live broadcast transfer mode arrives, and use the at least two The network card communication sub-module supporting different mobile communication systems forwards the live video data stream to the live server.

The network video live broadcast relay device stores a predetermined mapping relationship table between the live broadcast relay mode and the start time point (for example, the first start time point T1 corresponds to the live broadcast relay mode A, the second start time point T2 corresponds to the live broadcast relay mode B, and the first start time point T2 corresponds to the live broadcast relay mode B. The third activation time point T3 corresponds to the live broadcast relay mode C). When a start time point arrives, the online video live broadcast relay device determines the live broadcast relay mode corresponding to the current start time point by querying the mapping relationship table between the live broadcast relay mode and the start time point, and the network video live broadcast relay device switches to the determined live broadcast relay. A module, using the at least two network card communication sub-modules that respectively support different mobile communication systems to forward the video live broadcast data stream to the live broadcast server.

Further, the network video live broadcast relay control program 10 in this embodiment further includes an analysis module 105 and a third switching module 106; wherein,

The analysis module 105 is configured to analyze whether to switch the live broadcast relay mode in real time or periodically according to a predetermined mode switching analysis rule.

A set of mode switching analysis rules is pre-determined in the network video live broadcast relay device, and the network video live broadcast relay device analyzes whether to switch a live broadcast relay mode in real time or regularly according to the mode switch analysis rules.

In the technical solution of this embodiment, a live broadcast relay mode is set in the network video live broadcast relay device, and the network video live broadcast relay device can arrive at a preset start time point according to receiving a control instruction sent by a user to enter a live broadcast relay module, or After the preset mode switching analysis rules are analyzed and confirmed, enter the live broadcast transfer mode; after entering the live broadcast transfer mode, use the network card communication sub-modules that support different network cards to forward the received live video data stream to the communication connection. Live server. Compared with the prior art, in the scenario where there is no Wi-Fi signal or the Wi-Fi signal is weak, the network video live broadcast relay device can use one or more network card communication sub-modules to transmit the video sent by the live broadcast device. The live data stream is relayed to be sent to the live server to ensure the stable and smooth live broadcast of the live server; in a scenario where the signal of the network card communication sub-module of a mobile communication system is weak, it can be driven by one or more other different mobile communication systems. The network card sub-module of the network card forwards the live video data stream sent by the live broadcast device to the live broadcast server, so as to ensure the stable and smooth live broadcast of the live broadcast server; therefore, this solution enables the live broadcast of the network video to maintain the quality of the live broadcast of the network video in various scenarios. Stable and smooth, it solves the problem that live broadcast is prone to stutter and interruption caused by complex network environment and unstable signal conditions.

9, in the network video live broadcast relay control program 10 of this embodiment, the forwarding module 102, the first switching module 103, the second switching module 104 and the third switching module 106 all include a comparison sub-module 1001, a determination sub-module module 1002 and switching sub-module 1003.

The comparison sub-module 1001 is used to detect the preset type communication parameters of each of the network card communication sub-modules in real time or regularly, and compare the detected preset type communication parameters with preset thresholds respectively.

Wherein, the preset type of communication parameters may be: one or a combination of communication parameters reflecting network quality, such as communication signal strength, data upload or download speed, data packet loss rate, etc.; The larger the type communication parameter is, the faster and more stable the relay processing of the live video data stream is by the communication sub-module of the network card. A threshold (ie, a preset threshold) of a preset type of communication parameter is preset in the network video live relay device, and the preset threshold is a standard used to judge the network quality of the network card communication sub-module. The preset value of the network card communication sub-module When the type communication parameter exceeds the preset threshold, the live video data stream can be relayed through the network card communication sub-module to ensure that the live video data stream sent to the live server can maintain the stable and smooth playback of the live video. The playback of the live video is stuck, interrupted, or other abnormal situations. In this embodiment, the network video live relay device detects the preset type communication parameters of each network card communication sub-module in real time or regularly, and compares the detected preset type communication parameters of each network card communication sub-module with the preset threshold value. Compare to determine the size relationship between the preset type communication parameters of the currently enabled network card communication sub-modules and the preset threshold, and the preset type communication parameters of the currently disabled network card communication sub-modules are respectively The preset threshold value The size relationship, that is, to determine the network quality of the currently activated network card communication sub-module and the network quality of the remaining network card communication sub-modules.

The determination submodule 1002 is used to determine that the preset type communication parameter of the currently enabled network card communication submodule is less than or equal to the preset threshold, and there is a preset type communication parameter in the currently disabled network card communication submodule that is greater than the preset threshold. When the network card communication sub-module is selected, the network card communication sub-module with the largest detected communication parameter of the preset type is used as the network card communication sub-module to be enabled.

In the comparison result obtained by comparing the preset type communication parameters of each network card communication sub-module with the preset threshold by the live network video live relay device, if the preset type communication parameter of the currently enabled network card communication sub-module is less than or equal to the preset type threshold, and there is a network card communication sub-module whose preset type communication parameter is greater than the preset threshold in the currently disabled network card communication sub-module, it means that the network quality of the currently enabled network card communication sub-module is poor, and the live video data stream The transfer processing speed is not enough for the live server to maintain the stable and smooth playback of live video, and there is a network card with better network quality in the currently disabled network card communication sub-module, and the transfer processing speed of the live video data stream can make the live server live broadcast smoothly. Communication sub-module; at this time, the network card communication sub-module with the largest detected preset type communication parameter (that is, the best network quality) is screened out from the network card communication sub-module that is currently not enabled by the network video live relay device, and the filter is selected. The outgoing network card communication sub-module is used as the network card communication sub-module to be enabled.

The switching sub-module 1003 is used to close the currently enabled network card communication sub-module, enable the network card communication sub-module to be enabled, and forward the live video data stream sent by the live video device to the live server.

After determining the network card communication sub-module to be enabled, the network video live broadcast relay device closes the currently enabled network card communication sub-module, and simultaneously starts the network card communication sub-module to be enabled, and uses the enabled network card communication sub-module to be enabled. The data stream is relayed to forward the live video data stream sent by the live video device to the live server.

In the solution of this embodiment, the preset type communication parameters of each network card communication sub-module are detected in real time or regularly by the network video live broadcast device, and each detected preset type communication parameter is compared with the preset threshold value, so as to determine each network card. Whether the current network quality of the communication sub-modules meets the requirements for ensuring smooth live broadcast of the live server. When it is found that the network quality of the currently enabled network card communication sub-module does not meet the requirements of maintaining smooth live broadcast of the live server, the network card communication sub-module that has not been enabled is not activated. The network card communication sub-module with the best current network quality is selected to replace the currently enabled network card communication sub-module, and the live video data stream is relayed to ensure the smooth live broadcast of the live server.

10 , in the network video live broadcast relay control program 10 of this embodiment, the forwarding module 102 , the first switching module 103 , the second switching module 104 and the third switching module 106 all include a detection sub-module 1004 , a calculation Sub-module 1005 , segmentation sub-module 1006 and driving sub-module 1007 .

The detection sub-module 1005 is used for real-time or timing detection of preset type communication parameters of each of the network card communication sub-modules.

The preset type of communication parameters may be: communication signal strength, data upload or download speed, RTT, packet loss rate, and other communication parameters that reflect network quality.

The calculation sub-module 1005 is configured to determine the transfer percentage corresponding to each of the network card communication sub-modules according to the detected parameter value ratio relationship of the preset type communication parameters of each of the network card communication sub-modules.

For example, each network card communication sub-module is X1, X2 and X3 respectively, and the parameter values of the preset communication parameters of each network card communication sub-module are a1, a2, a3 respectively, then the network video live relay device determines that each network card communication sub-module corresponds to The transit percentages are a1/(a1+a2+a3), a2/(a1+a2+a3), a3/(a1+a2+a3).

The dividing sub-module 1007 is configured to divide the live video data stream into sub-data streams of the transit percentage corresponding to each of the network card communication sub-modules.

The driving sub-module 1007 is configured to drive each of the network card communication sub-modules to forward the corresponding sub-data stream to the live server respectively.

For example, the relay percentages corresponding to each network card communication sub-module (including network card communication west modules X1, X2 and X3) determined by the network video live relay device are: The corresponding relay percentage is b2, and the relay percentage corresponding to the network card communication sub-module X3 is b3. The network video live broadcast relay device divides the live video data stream sent by the video live broadcast device into the first sub-data stream with a percentage of b1, and the percentage is The first sub-data stream of b2 and the third sub-data stream whose percentage is b3, the sum of b1, b2, and b3 is 100%; the network video live broadcast relay device drives the network card communication sub-module X1 to relay and send the corresponding first sub-data stream to The live server drives the network card communication sub-module X2 to transmit the corresponding second sub-data stream to the live server, and drives the network card communication sub-module X3 to transmit the corresponding third sub-data stream to the live server.

In this embodiment, the network video live relay device dynamically monitors the preset type communication parameters of each network card communication sub-module, and determines the relay percentage corresponding to each network card communication sub-module according to the parameter value ratio relationship of the monitored preset type communication parameters, The network video live broadcast relay device divides the live video data stream sent by the video live broadcast device according to the relay percentage corresponding to each network card communication sub-module, so that each network card communication sub-module forwards and sends the corresponding sub-data stream to the live broadcast server. The solution of this embodiment can better ensure the smooth and stable live broadcast of the live broadcast server by monitoring the network quality of each network card communication sub-module, and evenly distributing the size of the sub-data stream sent by the relay according to the network quality.

Further, the present invention also proposes a network video live broadcast relay control system. The network video live broadcast relay control system includes a network video live broadcast relay device, at least one live broadcast server communicatively connected to the network video live broadcast relay device, and connected to the network video live broadcast relay device. At least one live video equipment is communicatively connected to the network video live broadcast relay device; wherein, the network video live broadcast relay equipment may include all the solutions in the above embodiments, and the specific structure refers to the above embodiments, which will not be repeated here.

Further, the present invention also proposes a computer-readable storage medium, the computer-readable storage medium stores a network video live broadcast relay control program, and the network video live broadcast relay control program can be executed by at least one processor, so that all The at least one processor executes the network video live broadcast relay control method in any of the foregoing embodiments.

The above descriptions are only the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Under the inventive concept of the present invention, the equivalent structural transformations made by the contents of the description and drawings of the present invention, or the direct/indirect application Other related technical fields are included in the scope of patent protection of the present invention.

Claims (16)

1. The utility model provides a live transfer equipment of network video, live transfer equipment of network video includes memory, treater to and with live equipment of video and live server communication connection's mobile communication module, a serial communication port, mobile communication module includes two at least network card communication submodule pieces that support different mobile communication system respectively, mobile communication module through communication base station with live server communication connection, the memory is stored with can live transfer control program of network video of operation on the treater, live transfer control program of network video realizes following method when being executed by the treater:

receiving a video live broadcast data stream sent by video live broadcast equipment;

driving at least two network card communication sub-modules which respectively support different mobile communication systems to work according to a preset live broadcast transfer mode, and transferring and sending the video live broadcast data stream to a live broadcast server by utilizing the at least two network card communication sub-modules which respectively support different mobile communication systems;

the live broadcast transfer mode comprises a second live broadcast transfer mode, and the transferring and sending of the video live broadcast data stream to the live broadcast server by using the at least two network card communication sub-modules respectively supporting different mobile communication systems comprises:

dividing the live video data stream into subdata streams with transfer percentages corresponding to the network card communication submodules;

and driving each network card communication submodule to transfer and send the corresponding sub data stream to a live broadcast server.

2. The apparatus according to claim 1, wherein the live webcast relay control program, when executed by the processor, further implements a method of:

receiving a control instruction sent by a user to enter a live broadcast transfer mode, switching to the live broadcast transfer mode indicated by the control instruction, and transferring and sending the live video data stream to a live broadcast server by using the at least two network card communication sub-modules which respectively support different mobile communication systems.

3. The apparatus according to claim 1, wherein the live webcast relay control program, when executed by the processor, further implements a method of:

and switching to the live broadcast transfer mode when the starting time point corresponding to one live broadcast transfer mode arrives according to the mapping relation between the predetermined live broadcast transfer mode and the starting time point, and transferring and sending the video live broadcast data stream to a live broadcast server by utilizing the at least two network card communication sub-modules which respectively support different mobile communication systems.

4. The apparatus according to claim 1, wherein the live webcast relay control program, when executed by the processor, further implements a method of:

and analyzing whether the live broadcast transfer mode is switched in real time or at regular time according to a predetermined mode switching analysis rule.

5. The network video live broadcasting transit device of claim 4, wherein the mode switching analysis rule includes:

judging whether the current load is greater than or equal to a preset first load threshold value, and if so, confirming switching of a live broadcast transfer mode; or,

judging whether the current load is smaller than a preset second load threshold value or not, and if so, confirming to switch the live broadcast transfer mode; or,

judging whether the signal intensity of a network card communication submodule is higher than a first preset signal intensity threshold value or not, and if so, confirming to switch a live broadcast transfer mode; or,

and judging whether the signal intensity of each network card communication submodule is lower than a second preset signal intensity threshold value or not, and if so, confirming to switch the live broadcast transfer mode.

6. The apparatus according to any one of claims 1 to 5, wherein the live relay mode includes a first live relay mode, and the relaying, by using the at least two network card communication sub-modules respectively supporting different mobile communication systems, the live video data stream to the live server comprises:

detecting preset type communication parameters of each network card communication submodule in real time or at regular time, and comparing the detected preset type communication parameters with preset thresholds respectively;

if the preset type communication parameter of the currently-started network card communication sub-module is smaller than or equal to the preset threshold value, and a network card communication sub-module with the preset type communication parameter larger than the preset threshold value exists in the currently-started network card communication sub-modules, taking the network card communication sub-module with the largest detected preset type communication parameter as the network card communication sub-module to be started;

and closing the currently started network card communication submodule, starting the network card communication submodule to be started, and transferring and sending the video live broadcast data stream to a live broadcast server.

7. The live network video transfer device according to any one of claims 1 to 5, wherein the determination process of the transfer percentage corresponding to each of the network card communication sub-modules includes:

detecting preset type communication parameters of each network card communication submodule in real time or at regular time;

and determining the transfer percentage corresponding to each network card communication submodule according to the detected parameter value ratio relation of the preset type communication parameters of each network card communication submodule.

8. A live webcast relay control system, characterized in that the live webcast relay control system comprises at least one live webcast relay device according to any one of claims 1 to 7, at least one live webcast server communicatively connected to the live webcast relay device, and at least one live webcast device communicatively connected to the live webcast relay device.

9. A network video live broadcast transfer control method is characterized in that the network video live broadcast transfer control method is applied to network video live broadcast transfer equipment, the network video live broadcast transfer equipment comprises a mobile communication module which is in communication connection with the video live broadcast equipment and a live broadcast server, and the mobile communication module comprises at least two network card communication sub-modules which respectively support different mobile communication systems; the mobile communication module is in communication connection with the live broadcast server through a communication base station, and the network video live broadcast transfer control method comprises the following steps:

receiving a video live broadcast data stream sent by video live broadcast equipment;

driving at least two network card communication sub-modules which respectively support different mobile communication systems to work according to a preset live broadcast transfer mode, and transferring and sending the video live broadcast data stream to a live broadcast server by utilizing the at least two network card communication sub-modules which respectively support different mobile communication systems;

the live broadcast transfer mode comprises a second live broadcast transfer mode, and the transferring and sending of the video live broadcast data stream to the live broadcast server by using the at least two network card communication sub-modules respectively supporting different mobile communication systems comprises:

dividing the live video data stream into subdata streams with transfer percentages corresponding to the network card communication submodules;

and driving each network card communication submodule to transfer and send the corresponding sub data stream to a live broadcast server.

10. The live webcast relay control method of claim 9, wherein the live webcast relay control method further comprises:

receiving a control instruction sent by a user to enter a live broadcast transfer mode, switching to the live broadcast transfer mode indicated by the control instruction, and transferring and sending the live video data stream to a live broadcast server by using the at least two network card communication sub-modules which respectively support different mobile communication systems.

11. The live webcast relay control method of claim 9, wherein the live webcast relay control method further comprises:

and switching to the live broadcast transfer mode when the starting time point corresponding to one live broadcast transfer mode arrives according to the mapping relation between the predetermined live broadcast transfer mode and the starting time point, and transferring and sending the video live broadcast data stream to a live broadcast server by utilizing the at least two network card communication sub-modules which respectively support different mobile communication systems.

12. The live webcast relay control method of claim 9, wherein the live webcast relay control method further comprises:

and analyzing whether the live broadcast transfer mode is switched in real time or at regular time according to a predetermined mode switching analysis rule.

13. The method according to claim 12, wherein the mode switching analysis rule includes:

judging whether the current load is greater than or equal to a preset first load threshold value, and if so, confirming switching of a live broadcast transfer mode; or,

judging whether the current load is smaller than a preset second load threshold value or not, and if so, confirming to switch the live broadcast transfer mode; or,

judging whether the signal intensity of a network card communication submodule is higher than a first preset signal intensity threshold value or not, and if so, confirming to switch a live broadcast transfer mode; or,

and judging the signal intensity of each network card communication submodule, and if the signal intensity of each network card communication submodule is lower than a second preset signal intensity threshold value, confirming that the live broadcast transfer mode is switched.

14. The method according to any one of claims 9 to 13, wherein the live broadcast relay mode includes a first live broadcast relay mode, and the relaying and sending the live video data stream to a live broadcast server by using the at least two network card communication sub-modules respectively supporting different mobile communication systems includes:

detecting preset type communication parameters of each network card communication submodule in real time or at regular time, and comparing the detected preset type communication parameters with preset thresholds respectively;

if the preset type communication parameter of the currently-started network card communication sub-module is smaller than or equal to the preset threshold value, and a network card communication sub-module with the preset type communication parameter larger than the preset threshold value exists in the currently-started network card communication sub-modules, taking the network card communication sub-module with the largest detected preset type communication parameter as the network card communication sub-module to be started;

and closing the currently started network card communication submodule, starting the network card communication submodule to be started, and transferring and sending the video live broadcast data stream to a live broadcast server.

15. The live network video transfer control method according to any one of claims 9 to 13, wherein the determining process of the transfer percentage corresponding to each of the network card communication sub-modules includes:

detecting preset type communication parameters of each network card communication submodule in real time or at regular time;

and determining the transfer percentage corresponding to each network card communication submodule according to the detected parameter value ratio relation of the preset type communication parameters of each network card communication submodule.

16. A computer-readable storage medium storing a webcast relay control program, the webcast relay control program being executable by at least one processor to cause the at least one processor to perform the webcast relay control method according to any one of claims 9 to 15.

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