CN109788226B - Flexible routing many-to-one high-definition video transmission method and system - Google Patents
Flexible routing many-to-one high-definition video transmission method and system Download PDFInfo
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Abstract
The invention relates to a flexible routing many-to-one high-definition video transmission method and a flexible routing many-to-one high-definition video transmission system, which comprise the following steps: s1, shooting high-definition videos by a plurality of shooting devices and outputting the shot current high-definition videos in real time; s2, detecting whether the data transmission state of the shooting devices meets the transmission condition, if so, executing a step S3, and if not, executing a step S4; s3, the shooting device meeting the transmission condition transmits the shot current high-definition video to the receiving device; and S4, detecting the data transmission state of other shooting devices by the shooting device which does not meet the transmission condition, judging whether the data transmission state of other shooting devices is a transmittable state, and if so, transmitting the current high-definition video shot by the shooting device which does not meet the transmission condition to the receiving device by the other shooting devices. By implementing the invention, the stable wireless transmission of the high-definition video between the shooting devices can be realized, and the problem that the wireless transmission of the current high-definition video is unstable or can not be transmitted under the complex environment condition is solved.
Description
Technical Field
The invention relates to the technical field of high-definition video data transmission, in particular to a method and a system for transmitting a high-definition video through a living route in a many-to-one manner.
Background
At present, in television play and movie shooting, a plurality of cameras are required to be adopted to shoot from a plurality of different angles and ranges of a shooting site respectively, and a director monitors, adjusts and controls high-definition videos or images shot by the cameras at a monitoring machine position.
However, in the existing movie shooting process, there are the following problems:
firstly, the method comprises the following steps: because the cameras are located at different positions and located in different position signal environments, high-definition videos or images shot by the cameras are often interfered by signals of various environmental factors or self factors in the transmission process, so that the transmission of the high-definition videos or images is unstable or cannot be transmitted.
Secondly, the method comprises the following steps: the position of the camera is not beneficial to signal transmission, even a barrier which can not transmit signals exists, at this time, high-definition video or images shot by the camera can not be transmitted to corresponding equipment due to the existence of the barrier, so that a monitoring machine position where a director is located can not monitor the camera in real time, and movie shooting is affected.
Thirdly, the method comprises the following steps: when the camera is moved at a high speed during shooting, the camera may be moved at a high speed for shooting, and data transmission problems such as unstable data transmission and data failure may occur due to the high-speed movement of the camera.
Disclosure of Invention
The present invention provides a method and a system for transmitting high definition video with a live route many-to-one, which aim at the above defects in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the method for transmitting the high-definition video by flexibly routing many-to-one comprises the following steps:
s1, shooting high-definition videos by a plurality of shooting devices and outputting the shot current high-definition videos in real time;
s2, the shooting devices detect whether the data transmission states of the shooting devices meet the transmission conditions, if so, the step S3 is executed, and if not, the step S4 is executed;
s3, the shooting device meeting the transmission condition transmits the shot current high-definition video to the receiving device;
s4, detecting the data transmission state of other shooting devices by the shooting device which does not meet the transmission condition, judging whether the data transmission state of other shooting devices is a transmittable state, and if so, transmitting the current high-definition video shot by the shooting device which does not meet the transmission condition to a receiving device by the other shooting devices; and the other shooting devices and the shooting device which does not meet the transmission condition are shooting devices of the same network.
Preferably, the step S4 includes:
s41, the shooting device which does not meet the transmission condition sends a data transmission state detection instruction to other shooting devices;
s42, the other shooting devices detect the data transmission state of the other shooting devices according to the data transmission state detection instruction, and return detection results to the shooting devices which do not meet the transmission conditions;
and S43, the shooting device meeting the transmission condition determines whether the data transmission state of the other shooting devices is a transmittable state according to the detection result.
Preferably, the step S4 further includes:
s44, if the data transmission state of the other shooting devices is a transmittable state, the shooting device which does not meet the transmission condition splits the current high-definition video shot by the shooting device according to the bandwidth of the transmittable state of the other shooting devices;
s45, the shooting device which does not meet the transmission condition sends the split current high-definition video to other shooting devices of which the data transmission state is a transmittable state;
and S46, sending the received current high-definition video to the receiving device by the other shooting devices with the data transmission states being transmittable.
Preferably, the method further comprises the following steps:
if the data transmission states of the other shooting devices are all non-transmittable states, the shooting device which does not meet the conditions reduces the code rate of the shooting device so that the data transmission state of the shooting device meets the transmission conditions;
or if the data transmission states of the other shooting devices are all in the non-transmission state, the shooting device which does not meet the conditions reduces the resolution or the frame rate of the shooting device so that the data transmission state of the shooting device meets the transmission conditions.
Preferably, the method further comprises the following steps:
s5, the receiving device receives the current high-definition video transmitted by the shooting device meeting the condition and the current high-definition video transmitted by the other shooting devices;
s6, the receiving device sends the current high-definition video transmitted by the shooting device meeting the conditions to the intelligent terminal, integrates the current high-definition video transmitted by other shooting devices, and sends the integrated current high-definition video to the intelligent terminal;
and S7, the intelligent terminal displays the current high-definition video sent by the receiving device in real time.
Preferably, the step S7 includes:
the intelligent terminal displays the current high-definition videos shot by the shooting devices in a multi-screen or single-screen mode in real time, and achieves switching between multi-screen display and single-screen display according to the received operation instructions input by the user.
Preferably, the method further comprises the following steps:
the receiving device receives the working state information of the plurality of shooting devices sent by the many-to-one field scheduling equipment and sends the received working state information of the plurality of shooting devices to the intelligent terminal;
and the intelligent terminal displays the working state information of the plurality of shooting devices in real time.
The invention also provides a flexible routing many-to-one high-definition video transmission system, which comprises: the intelligent terminal comprises a plurality of shooting devices, a receiving device in communication connection with the shooting devices, and an intelligent terminal in communication connection with the receiving device;
the shooting devices are used for shooting high-definition videos and outputting the shot current high-definition videos in real time, detecting whether the data transmission state of the shooting devices meets the transmission condition before sending the shot current high-definition videos, if so, directly transmitting the shot current high-definition videos to the receiving device, if not, detecting the data transmission state of other shooting devices by the shooting devices which do not meet the transmission condition, judging whether the data transmission state of the other shooting devices is a transmittable state, and if so, transmitting the current high-definition videos shot by the shooting devices which do not meet the transmission condition to the receiving device through the other shooting devices; the other shooting devices and the shooting device which does not meet the transmission condition are shooting devices of the same network;
the receiving device is used for sending the current high-definition video sent by the shooting device meeting the transmission condition to the intelligent terminal, integrating the current high-definition video sent by other shooting devices and sending the integrated current high-definition video to the intelligent terminal;
and the intelligent terminal is used for displaying the current high-definition videos shot by the shooting devices in real time.
Preferably, the method further comprises the following steps:
a many-to-one field scheduling device in communication connection with the receiving device; the many-to-one field scheduling equipment is used for outputting control signals and the working state information of the plurality of shooting devices to the receiving device according to operation instructions input by a user and displaying the working state information of the plurality of shooting devices in real time;
the receiving device is further used for transmitting the control signal to the plurality of shooting devices and transmitting the working state information of the plurality of shooting devices to the intelligent terminal;
and the intelligent terminal is also used for displaying the working state information of the plurality of shooting devices in real time.
Preferably, the method further comprises the following steps:
the broadcasting station or the cloud server is in communication connection with the receiving device;
and the broadcasting guide station or the cloud server is used for receiving and storing the current high-definition videos shot by the shooting devices in real time and sending the current high-definition videos shot by the shooting devices to the high-definition video live broadcast station.
The flexible routing many-to-one high-definition video transmission method has the following beneficial effects: the invention relates to a flexible routing many-to-one high-definition video transmission method, which is characterized in that a plurality of shooting devices detect whether the data transmission state of the shooting devices meets the transmission condition before sending out the current high-definition video shot by the shooting devices, when the data transmission condition is not met, the data transmission states of other shooting devices can be detected, and when the data transmission states of other shooting devices are in a transmittable state, the current high-definition video of the shooting devices is transmitted to a receiving device through other shooting devices, thereby realizing flexible data transmission among the shooting devices, effectively solving the problem that the transmission of the high-definition video data is unstable or can not be transmitted due to the interference of environmental factors or self factors in the high-definition video data transmission process of the existing camera, and simultaneously solving the problem that the high-definition video data can not be transmitted due to the obstruction of obstacles, and the data transmission problem caused by high-speed movement in the shooting process is solved, and the stability, timeliness, reliability and robustness of high-definition video data transmission are greatly improved.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic flowchart of a flexible routing many-to-one high-definition video transmission method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a flexible routing many-to-one high-definition video transmission system according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a many-to-one field scheduling device according to an embodiment of the present invention;
FIG. 4 is a functional block diagram of a many-to-one field scheduling device provided by an embodiment of the present invention;
fig. 5 is a schematic diagram of high-definition video transmission of a many-to-one high-definition video transmission method according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a schematic flow chart of a flexible routing many-to-one high definition video transmission method according to an embodiment of the present invention is provided, where the flexible routing many-to-one high definition video transmission method may be applied to the field of movie shooting, and of course, it can be understood that the flexible routing many-to-one high definition video transmission method may also be applied to other occasions where multi-path high definition video data transmission is required.
As shown in fig. 1, the flexible routing many-to-one high definition video transmission method includes the following steps:
s1, the plurality of photographing devices 30 photograph the high definition video and output the photographed current high definition video in real time.
Understandably, the plurality of shooting devices 30 are arranged at a plurality of different angles, different positions and/or different areas on the scene according to the requirements of the movie shooting scene so as to shoot the current high-definition videos at the plurality of angles in real time, thereby avoiding the problem of respectively shooting at all the angles and effectively improving the shooting efficiency.
Optionally, in the embodiment of the present invention, the current high definition video shot by each shooting device 30 carries identification information of the shooting device 30, where the identification information includes the position information of the shooting device 30 and the network information of the shooting device 30. The location information is used to identify the location number and position of the camera 30, and the network information is used to identify the network where the camera 30 is located, wherein the network information includes, but is not limited to, an ID number, an IP address, and the like.
S2, the plurality of imaging devices 30 detect whether their own data transfer states satisfy the transfer conditions, if so, go to step S3, and if not, go to step S4.
It can be understood that, before sending out the current high definition video shot by each shooting device 30, the data transmission state of each shooting device is detected first to determine whether the data transmission state of each shooting device meets the transmission condition, so as to ensure that the current high definition video can be sent out stably and reliably.
Optionally, step S2 may include the following steps:
s21, the plurality of cameras 30 determine the size of the current high-definition video according to the current high-definition video captured.
S22, acquiring the maximum transmission bandwidth of the occupied transmission channel by the plurality of shooting devices 30;
and S23, determining whether the data transmission states of the plurality of shooting devices 30 meet the transmission condition or not according to the size of the current high-definition video and the maximum transmission bandwidth of the occupied transmission channel by the plurality of shooting devices 30.
Specifically, each shooting device 30 determines the size of the current high-definition video according to the current high-definition video shot by itself, and further determines whether the current high-definition video shot by the shooting device is within the maximum transmission bandwidth of the occupied transmission channel, that is, the transmission bandwidth of the channel can satisfy the requirement of transmitting the current high-definition video of the shooting device 30 to the receiving device 20, and if the current high-definition video is within the maximum transmission bandwidth of the occupied transmission channel, the transmission condition is satisfied.
Further, the data transmission state of the photographing device 30 satisfying the transmission condition further includes:
the environment where the photographing device 30 is located does not affect the data transmission, and the size of the current high-definition video photographed by the photographing device 30 is within the maximum transmission bandwidth of the occupied transmission channel, at this time, the data transmission state of the photographing device 30 meets the transmission condition.
Further, the data transmission state of the photographing device 30 not satisfying the transmission condition includes:
firstly, the environment of the shooting device 30 interferes with the data transmission thereof, so that the shooting device cannot stably transmit the shot current high-definition video, and at this time, the data transmission state of the shooting device 30 does not satisfy the transmission condition.
Secondly, there is an obstacle between the camera 30 and its data transmission object, which results in that it cannot transmit the current high definition video being shot, and at this time, the data transmission state of the camera 30 does not satisfy the transmission condition.
Thirdly, the photographing device 30 moves at a high speed during photographing, so that it cannot stably transmit the photographed current high definition video, and at this time, the data transmission state of the photographing device 30 does not satisfy the transmission condition.
S3, the photographing device 30 satisfying the transmission condition transmits the photographed current high definition video to the receiving device 20.
It is to be understood that there may be one or more cameras 30 meeting the transmission condition, and when there are multiple cameras 30 meeting the transmission condition, the multiple cameras 30 meeting the transmission condition may simultaneously transmit the respective captured current high-definition videos, and the multiple cameras 30 only occupy one wireless channel when transmitting the respective captured current high-definition videos, where each camera 30 transmits the respective captured current high-definition videos according to the respective time slot.
S4, the camera 30 not meeting the transmission condition detects the data transmission status of the other camera 30, determines whether the data transmission status of the other camera 30 is a transmittable status, and transmits the current high definition video captured by the camera 30 not meeting the transmission condition to the receiving device 20 through the other camera 30 if the data transmission status of the other camera 30 is a transmittable status; the other cameras 30 are cameras 30 of the same network as the cameras 30 that do not satisfy the transmission condition.
It is to be understood that one or more photographing devices 30 that do not satisfy the transmission condition may be provided.
In the embodiment of the present invention, the other capturing device 30 is a capturing device 30 in the same network as the capturing device 30 that does not satisfy the transmission condition, wherein the other capturing device 30 satisfies the transmission condition, that is, the other capturing device 30 can stably and reliably transmit the captured current high definition video. Alternatively, the other photographing devices 30 may be one or more.
Optionally, in this embodiment of the present invention, step S4 includes the following steps:
s41, the image pickup apparatus 30 that does not satisfy the transfer condition sends a data transfer state detection instruction to the other image pickup apparatus 30.
S42, the other imaging device 30 detects its own data transfer state based on the data transfer state detection instruction, and returns the detection result to the imaging device 30 that does not satisfy the transfer condition.
S43, the photographing device 30 satisfying the transmission condition determines whether the data transmission status of the other photographing device 30 is a transmittable status according to the detection result.
Further, step S4 may further include the steps of:
and S44, if the data transmission state of the other shooting devices 30 is the transmittable state, the shooting device 30 which does not meet the transmission condition splits the current high-definition video shot by the shooting device 30 according to the bandwidth size of the transmittable state of the other shooting devices 30.
And S45, the shooting device 30 which does not meet the transmission condition sends the split current high-definition video to other shooting devices 30 of which the data transmission state is a transmittable state.
S46, the other photographing device 30 whose data transmission state is a transmittable state transmits the received current high definition video to the reception device 20.
In the embodiment of the present invention, the other shooting devices 30 whose data transmission states are transmittable states refer to that these shooting devices 30 have extra bandwidth on the basis of being able to stably transmit the current high definition video shot by themselves, that is, if any shooting device 30 can transmit the maximum high definition video data of 30Mbps (megabits per second), and the current high definition video shot by it is 20Mbps, the extra bandwidth is 10Mbps, that is, it can allocate 10Mbps to the shooting device 30 that cannot normally transmit the high definition video data.
In conjunction with fig. 2, it is assumed that there are 4 cameras 30 at the shooting site, namely, a #1 camera 301, a # camera 30, a #3 camera 303 and a #4 camera 304, wherein each camera 30 includes a camera and a transmitter associated with the camera, and the camera is configured to shoot high definition video and output the shot current high definition video to the transmitter in real time, and transmit the current high definition video to the receiving apparatus 20 through the transmitter.
As shown in fig. 2, it is assumed that a transmission link between the #1 camera 301 and the receiving apparatus 20 is interfered, so that the #1 camera 301 cannot stably and reliably transmit the current high-definition video (for convenience of description, defined as the #1 current high-definition video, and the size of the #1 current high-definition video is 20Mbps) captured by the #1 camera 301 to the receiving apparatus 20 in real time, and each of the #2 camera 302, the #3 camera 303 and the #4 camera 304 can stably and reliably transmit the current high-definition video (for convenience of description, defined as the #2 current high-definition video, the #3 current high-definition video, and the #4 current high-definition video) captured by the respective camera in real time.
It is understood that when #1 camera 301 detects that it cannot transmit its current high definition video shot by itself to receiving apparatus 20 in real time, #1 camera 301 transmits a data transmission state detection instruction to #2 camera 302, #3 camera 303, and #4 camera 304, respectively, and #2 camera 302, #3 camera 303, and #4 camera 304 detect the respective data transmission states upon receiving the data transmission state detection instruction transmitted by #1 camera 301, respectively, and returns the detection results to #1 camera 301 (assuming that the detection results are: #2 camera 302 can transmit 4Mbps, #3 camera 303 can transmit 6Mbps, and #4 camera 304 can transmit 10Mbps), at which time, #1 camera 301 can determine that the data transmission states of #2 camera 302, #3 camera 303, and #4 camera 304 are all transmittable based on the returned detection results, then the current high definition video of #1 that shoots according to the testing result split oneself, be about to split respectively for the current high definition video of #1 of 20 Mbps: a 4Mbps sub high definition video, a 6Mbps sub high definition video, and a 10Mbps sub high definition video; the sub high definition video of 4Mbps, the sub high definition video of 6Mbps, and the sub high definition video of 10Mbps are the current high definition video split by the #1 shooting device 301. Then, the split 4Mbps sub high definition video, 6Mbps sub high definition video, and 10Mbps sub high definition video are assigned to #2 camera 302, #3 camera 303, and #4 camera 304, respectively, and the 4Mbps sub high definition video, the 6Mbps sub high definition video, and the 10Mbps sub high definition video are transmitted to receiving apparatus 20 by #2 camera 302, #3 camera 303, and #4 camera 304, respectively. Fig. 5 shows a schematic diagram of high definition video data transmission. In fig. 5, the obstacle is only one of the cases where the #1 camera 301 cannot transmit the #1 current high definition video captured by the #1 camera to the receiving apparatus 20 in real time, and does not represent all the cases, that is, the case where the #1 camera 301 cannot normally transmit the #1 current high definition video captured by the #1 camera to the receiving apparatus 20 in real time may also be in other manners, and is not limited to the example of fig. 5.
Optionally, the shooting device 30 that does not satisfy the transmission condition in the embodiment of the present invention preferentially transmits the current high definition video shot by the shooting device 30 with the largest bandwidth to the receiving device 20 through the other shooting devices 30 whose data transmission states are transmittable. This is also illustrated in fig. 2: suppose the detection result is: the #2 camera 302 can transmit 4Mbps, the #3 camera 303 can transmit 6Mbps, and the #4 camera 304 can transmit 20Mbps, and at this time, the #1 camera 301 preferentially allocates the #1 current high-definition video shot by itself to the #4 camera 304, and the #4 camera 304 transmits the video to the receiving apparatus 20.
Of course, it is understood that in some other embodiments, after the plurality of photographing devices and the receiving device complete network connection, the data transmission state and the operating state of each photographing device may be directly obtained between the plurality of photographing devices, and similarly, the receiving device may also directly obtain the data transmission state and the operating state of each photographing device. Therefore, in this manner, in a specific example, when the #1 camera 301 detects that it cannot transmit the #1 current high definition video shot by itself to the receiving device 20 in real time, the #1 camera 301 can directly determine the data transmission status of other known cameras (#2 camera 302, #3 camera 303, and #4 camera 304): respectively as follows: the #2 shooting device 302 can transmit 4Mbps, the #3 shooting device 303 can transmit 6Mbps, the #4 shooting device 304 can transmit 10Mbps, and the current high-definition video of #1 shot by itself is split, that is, the current high-definition video of #1 of 20Mbps is split into: a 4Mbps sub high definition video, a 6Mbps sub high definition video, and a 10Mbps sub high definition video; the sub high definition video of 4Mbps, the sub high definition video of 6Mbps, and the sub high definition video of 10Mbps are the current high definition video split by the #1 shooting device 301. Then, the split 4Mbps sub high definition video, 6Mbps sub high definition video, and 10Mbps sub high definition video are assigned to #2 camera 302, #3 camera 303, and #4 camera 304, respectively, and the 4Mbps sub high definition video, the 6Mbps sub high definition video, and the 10Mbps sub high definition video are transmitted to receiving apparatus 20 by #2 camera 302, #3 camera 303, and #4 camera 304, respectively.
Further, the method for transmitting a flexible-routing many-to-one high-definition video according to the embodiment of the present invention further includes the following steps:
if the data transmission states of the other photographing devices 30 are all the non-transmittable states, the photographing device 30 that does not satisfy the condition reduces its own code rate so that its own data transmission state satisfies the transmission condition.
Alternatively, if the data transfer states of the other image capturing apparatuses 30 are all the non-transferable states, the image capturing apparatus 30 that does not satisfy the conditions lowers its own resolution or frame rate so that its own data transfer state satisfies the transfer conditions. Here, the data transmission state of the other photographing devices 30 being the non-transmittable state means that these photographing devices 30 can transmit only the current high definition video photographed by themselves, and there is no surplus bandwidth allocated to the photographing device 30 incapable of transmitting the high definition video to the receiving device 20.
It is understood that when the data transmission states of the other photographing devices 30 are all non-transmission states, the following description will be given by taking fig. 2 as an example: the detection result is as follows: when the #2 camera 302, the #3 camera 303 and the #4 camera 304 have no redundant bandwidth to transmit the high-definition video to the #1 camera 301, the #1 camera 301 may automatically reduce its code rate, so that it can stably and reliably transmit the current #1 high-definition video captured in real time. Alternatively, the #1 camera 301 may automatically reduce its resolution or frame rate, so that it can stably and reliably transmit the shot #1 current high definition video in real time.
It should be noted here that when there is no requirement for the code rate, resolution, or frame rate of the #1 camera 301, the #1 camera 301 preferably reduces its code rate, and when the code rate is reduced to a limit value, the resolution is reduced, and finally the frame rate is reduced. Of course, it is understood that when the resolution requirement of the transmitted high definition video is high, the frame rate may be selected to be lowered first; when the real-time requirement on the high-definition video transmission is high, the resolution can be reduced firstly. Generally, the resolution and frame rate reduction can be performed by stepwise reduction, for example, the resolution is 1080P, and the resolution can be reduced from 1080P to 720P; alternatively, when the resolution is 1080i, the resolution can be reduced from 1080i to 720i, and the like; if the frame rate is 60Hz, the frame rate can be reduced from 60Hz to 50Hz, and when 50Hz is not satisfied, the frame rate can be reduced from 50Hz to 30Hz, and so on.
In the embodiment of the present invention, when any one or more of the shooting devices 30 cannot normally transmit the current high definition video to the receiving device 20, but other shooting devices 30 that can normally transmit the current high definition video to the receiving device 20, a data distribution process between the shooting device 30 that cannot normally transmit the current high definition video and the shooting device 30 that can normally transmit the current high definition video is extremely short, at a microsecond level, and therefore, the transmission of the high definition video data between the shooting device 30 and the receiving device 20 of the present invention is still real-time transmission. Likewise, when any one or more of the photographing devices 30 cannot normally transmit the current high-definition video to the receiving device 20, but adapts to the transmission by reducing the code rate, resolution or frame rate thereof, the time required for these processes is also extremely short, also on the order of microseconds, and therefore, it is also achieved that the high-definition video data transmission between the photographing device 30 and the receiving device 20 is real-time transmission.
Further, the method for transmitting the flexible routing many-to-one high-definition video further comprises the following steps:
s5, the receiving device 20 receives the current high definition video transmitted by the shooting device 30 satisfying the condition and the current high definition video transmitted by other shooting devices 30.
And S6, the receiving device 20 sends the current high-definition video transmitted by the shooting device 30 meeting the conditions to the intelligent terminal 40, integrates the current high-definition video transmitted by other shooting devices 30, and sends the integrated current high-definition video to the intelligent terminal 40.
It can be understood that, when the camera device 30 received by the receiving device 20 is the split current high definition video transmitted by other camera devices 30, the receiving device 20 integrates the split current high definition video, and after the integration is completed, sends the integrated current high definition video to the intelligent terminal 40.
Similarly, the description will be given by taking fig. 2 as an example. The #1 current high definition video (20Mbps) shot by the #1 shooting device 301 is transmitted to the receiving device 20 through the #2 shooting device 302, the #3 shooting device 303 and the #4 shooting device 304, wherein split sequence numbers are carried in the 4Mbps sub high definition video, the 6Mbps sub high definition video and the 10Mbps sub high definition video split by the #1 shooting device 301, respectively, after the receiving device 20 receives the 4Mbps sub high definition video, the 6Mbps sub high definition video and the 10Mbps sub high definition video transmitted by the #2 shooting device 302, the #3 shooting device 303 and the #4 shooting device 304, respectively, the 4Mbps sub high definition video, the 6Mbps sub high definition video and the 10Mbps sub high definition video are integrated according to the split sequence numbers carried by the 4Mbps sub high definition video, the 6Mbps sub high definition video and the 10Mbps sub high definition video, and the integrated current high definition video is obtained, and the integrated current high.
And S7, the intelligent terminal 40 displays the current high-definition video sent by the receiving device 20 in real time.
Optionally, step S7 includes: the intelligent terminal 40 displays the current high-definition videos shot by the multiple shooting devices 30 in a multi-screen or single-screen mode in real time, and switches between the multi-screen display and the single-screen display according to the received operation instruction input by the user.
It can be understood that, during the shooting process in the field, the user of the intelligent terminal 40 (i.e. the aforementioned user) can view the current high definition video shot at each angle of the film scene in real time. Moreover, a user of the intelligent terminal 40 can also input an operation instruction by himself to realize switching between multi-screen and single-screen, so as to view high-definition videos at various angles of a film scene or high-definition videos shot by a certain shooting device 30.
Optionally, in the embodiment of the present invention, the intelligent terminal 40 may be a touch display terminal, and may input a corresponding operation instruction through touch operation. For example, it may be a tablet computer or the like.
Further, the flexible routing many-to-one high definition video transmission method further comprises:
the receiving device 20 receives the operation state information of the plurality of photographing devices 30 transmitted from the many-to-one field scheduling apparatus 10, and transmits the received operation state information of the plurality of photographing devices 30 to the smart terminal 40.
The intelligent terminal 40 displays the operating state information of the plurality of photographing devices 30 in real time.
Referring to fig. 2, a schematic structural diagram of a flexible routing many-to-one high definition video transmission system according to an embodiment of the present invention is provided, where the flexible routing many-to-one high definition video transmission system is used to implement the foregoing flexible routing many-to-one high definition video transmission method, and the flexible routing many-to-one high definition video transmission system may be applied to the field of movie shooting or other occasions requiring multi-path high definition video transmission.
As shown in fig. 2, the flexible routing many-to-one high definition video transmission system includes: the system comprises a plurality of shooting devices 30, a receiving device 20 connected with the shooting devices 30 in a communication mode, and an intelligent terminal 40 connected with the receiving device 20 in a communication mode.
The shooting devices 30 are used for shooting high-definition videos and outputting the shot current high-definition videos in real time, the shooting devices 30 detect whether the data transmission states of the shooting devices meet the transmission conditions before the shot current high-definition videos are sent, if so, the shot current high-definition videos are directly transmitted to the receiving device 20, if not, the shooting devices 30 which do not meet the transmission conditions detect the data transmission states of other shooting devices 30 and judge whether the data transmission states of the other shooting devices 30 are in a transmittable state, and if so, the current high-definition videos shot by the shooting devices 30 which do not meet the transmission conditions are transmitted to the receiving device 20 through the other shooting devices 30; the other cameras 30 are cameras 30 of the same network as the cameras 30 that do not satisfy the transmission condition.
As shown in fig. 2, each camera 30 includes a camera and a transmitter, the camera for each camera 30 includes a camera and a transmitter associated with the camera, and the camera is configured to capture high-definition video and output the captured current high-definition video to the transmitter in real time, and transmit the captured current high-definition video to the receiving device 20 through the transmitter. The current high-definition video sent by each transmitter carries the station information and the network information of the camera associated therewith, wherein the station information is used for identifying the station number and the position of the associated camera, and the network information is used for identifying the network where the associated camera is located, so as to facilitate editing, clipping and the like of the subsequent high-definition video, and facilitate monitoring of each external shooting device 30. The station information and the network information are identification information of the camera 30. Specifically, as shown in fig. 2, the #1 camera 301 includes a #1 camera and a #1 transmitter, the #2 camera 302 includes a #2 camera and a #2 transmitter, the #3 camera 303 includes a #3 camera and a #3 transmitter, and the #4 camera 304 includes a #4 camera and a #4 transmitter.
Optionally, in the embodiment of the present invention, the current high definition video shot by each shooting device 30 carries identification information of the shooting device 30, where the identification information includes the position information of the shooting device 30 and the network information of the shooting device 30. The location information is used to identify the location number and position of the camera 30, and the network information is used to identify the network where the camera 30 is located, wherein the network information includes, but is not limited to, an ID number, an IP address, and the like.
And the receiving device 20 is configured to send the current high-definition video sent by the shooting device 30 meeting the transmission condition to the intelligent terminal 40, integrate the current high-definition video sent by other shooting devices 30, and send the integrated current high-definition video to the intelligent terminal 40. In the embodiment of the present invention, the number of the receiving devices 20 may be one or more.
Specifically, if the current high-definition video received by the receiving device 20 is the current high-definition video sent by the shooting device 30 that meets the transmission condition, the receiving device 20 may directly send the received current high-definition video to the intelligent terminal 40 in real time and synchronously; if the current high-definition video received by the receiving device 20 is transmitted by another shooting device 30 and is the split current high-definition video, the receiving device 20 needs to integrate the split current high-definition video first, and send the integrated current high-definition video to the intelligent terminal 40 after the integration is completed. It can be understood that the split sub high definition videos allocated to other shooting devices 30 by the shooting device 30 that does not satisfy the transmission condition carry split serial numbers, and therefore, the receiving device 20 may integrate according to the split serial numbers carried by the sub high definition videos.
And the intelligent terminal 40 is used for displaying the current high-definition videos shot by the plurality of shooting devices 30 in real time.
Optionally, the intelligent terminal 40 may display, in real time, the current high-definition videos captured by the multiple capturing devices 30 in multiple screens or in a single screen, and implement switching between multiple-screen display and single-screen display according to the received operation instruction input by the user. It can be understood that, during the shooting process in the field, the user of the intelligent terminal 40 (i.e. the aforementioned user) can view the current high definition video shot at each angle of the film scene in real time. Moreover, a user of the intelligent terminal 40 can also input an operation instruction by himself to realize switching between multi-screen and single-screen, so as to view high-definition videos at various angles of a film scene or high-definition videos shot by a certain shooting device 30.
Optionally, in the embodiment of the present invention, the intelligent terminal 40 may be a touch display terminal, and may input a corresponding operation instruction through touch operation. For example, it may be a tablet computer or the like.
Further, the flexible routing many-to-one high definition video transmission system of the embodiment of the present invention further includes:
a many-to-one field dispatch device 10 communicatively coupled to the receiving apparatus 20.
And the many-to-one field scheduling apparatus 10 is configured to output the control signal and the operating state information of the plurality of photographing devices 30 to the receiving device 20 according to the operation instruction input by the user, and display the operating state information of the plurality of photographing devices 30 in real time.
The receiving device 20 is further configured to transmit a control signal to the plurality of photographing devices 30 and transmit the operating state information of the plurality of photographing devices 30 to the intelligent terminal 40.
And the intelligent terminal 40 is also used for displaying the working state information of the plurality of shooting devices 30 in real time.
Referring to fig. 3, a schematic structural diagram of a many-to-one field scheduling apparatus 10 according to an embodiment of the present invention is provided. The scheduling device 10 can be applied to the field of movie shooting, and of course, it is understood that the scheduling device 10 can also be applied to other occasions where field scheduling is required.
The many-to-one field scheduling apparatus 10 is communicatively connected to a plurality of cameras 30, and the many-to-one field scheduling apparatus 10 may be connected to the plurality of cameras 30 through a receiving device. The plurality of shooting devices 30 can be arranged at different positions and different angles of a shooting scene and are used for shooting high-definition videos with different heights and multiple angles and multiple positions of the shooting scene.
As shown in fig. 3 and 4, the many-to-one field scheduling device 10 includes: a first input device 11, a second input device 12, a controller 14 connected to the first input device 11 and the second input device 12, respectively, and a display 13 connected to the controller 14.
Specifically, the first input device 11 is configured to receive a first operation instruction. Wherein the first operation instruction is generated by a pressing operation of a user.
Optionally, the first input device 11 includes a confirmation key and a plurality of function keys, wherein the confirmation key is used for confirming the input information of the key. The function keys may include at least one of a listen function key, a talk function key, and a Tally function key. The specific operation is as follows: when the many-to-one field scheduling device 10 presses the listening function key and then presses the confirmation key, the listening function is selected; when the listening function needs to be cancelled, the listening function key can be pressed first, and then the confirmation key is pressed, so that the cancellation of the listening function can be completed. Or, when the user presses the speaking function key and then presses the confirmation key, the selection of the speaking function is completed; when the speaking function needs to be cancelled, the speaking function key can be pressed first, and then the confirmation key is pressed, so that the cancellation of the speaking function can be completed. Or when the user presses the Tally function key and then presses the confirmation key, the selection of the Tally function is completed; when the Tally function needs to be cancelled, the Tally function key can be pressed first, and then the confirmation key is pressed, so that the selection of the Tally function can be completed.
Specifically, the second input device 12 is configured to receive a second operation instruction. Wherein the second operation instruction is generated by a pressing operation of the user.
Optionally, the second input device 12 includes at least one set of keys, each associated with a camera 30. Since each station key is associated with a camera 30, selective control or operation of the camera 30 can be achieved directly by selective control or operation of the station key.
And a controller 14 for outputting the operating state information and the control signals of the plurality of photographing devices 30 according to the first operation instruction and/or the second operation instruction. As can be appreciated, the control signals generated by the controller 14 according to the first operation instruction and/or the second operation instruction are used to control the corresponding photographing device 30 to perform the corresponding operation.
And a display 13 connected to the controller 14, the display 13 displaying the operating state information of the plurality of imaging devices 30 in real time. Optionally, the display 13 includes, but is not limited to, an LCD display 13, an LED display 13, an OLED display.
As shown in fig. 3, further, the many-to-one field scheduling device 10 further includes: and a communication module 15 connected to the controller 14 for transmitting a control signal.
Optionally, the communication module 15 includes a wired communication module and/or a wireless communication module.
The wired communication module 15 includes at least one of R232, R422, R485 interface, and USB interface. Specifically, when the many-to-one field scheduling device 10 communicates with the camera 30 through the receiver, the connection between the scheduling device 10 and the receiver can be realized through any one of the set R232, R422, R485 interfaces and USB interfaces, and then the signal is sent to the camera 30 through the receiver, so as to control the camera 30 to execute the relevant operation.
The wireless communication module 15 includes at least one of a bluetooth communication module, a 3G communication module, a 4G communication module, a 5G communication module, an LTE communication module, a WiMax communication module, and a WIFI communication module.
To avoid the complexity of the connection lines between the devices and the flexibility of movement, the communication module 15 is preferably a wireless communication module.
By arranging the set key and the function key associated with the photographing device 30 on the many-to-one field dispatching device 10, the two-way call operation and the one-way call operation between the user of the many-to-one field dispatching device 10 and the user of one or more photographing devices 30 can be realized, and simultaneously, the working state information of the plurality of photographing devices 30 can be synchronously displayed in real time, so that the user of the many-to-one field dispatching device 10 can intuitively know the working state of the photographing device 30 and adjust the working state of the photographing device 30 side to coordinate the working of the photographing device 30 side, and the photographing efficiency and the coordination accuracy are improved.
In addition, the many-to-one field dispatching device 10 is simple to operate, small in size, convenient to carry, low in cost, wide in application range and applicable to any field needing field dispatching.
Further, the many-to-one field scheduling device 10 may be a mobile terminal 40 such as a mobile phone or tablet, or in some other embodiments, the many-to-one field scheduling device 10 may be directly disposed on the receiver.
As shown in fig. 3, the first input means 11 includes an listen function key, a talk function key, a Tally function key, and a confirm key; the second input device 12 comprises a #1 machine bit key, a #2 machine bit key, a #3 machine bit key and a #4 machine bit key; the many-to-one field dispatch device 10 user is exemplified by a director. It should be noted that fig. 1 only shows 4 machine positions for example, and in the actual product design process, the number of the cameras 30 can be increased and decreased according to needs.
As shown in fig. 3, the listen function key may be used to listen to the position spoken by the director of the other position; the speaking function key is used for designating a machine position capable of speaking; the Tally function key is used for specifying a machine position needing Tally indication; the confirm key is used for confirming that the listen, speak and Tally functions are enabled; the bit keys #1 to #4 indicate the imaging apparatuses 30 #1 to # 4.
The following description of the specific operation of the many-to-one field scheduling device 10 is provided by way of a number of embodiments:
the first embodiment is as follows:
two-way calls with the director are established for #1 camera 301 and #2 camera 302: pressing the #1 station key and the #2 station key, pressing the listen function key and the talk function key, and pressing the confirm key, the two-way call between the #1 camera 301 and the #2 camera 302 and the director can be established, and the display 13 synchronously displays that the #1 camera 301 and the #2 camera 302 are in the listen-and-talk state.
Example two:
canceling the bidirectional call with the director for the #1 camera 301 and the #2 camera 302: the user presses the #1 station key and the #2 station key, presses the listen function key and the talk function key, and presses the confirm key, so that the user can cancel the two-way call between the #1 camera 301 and the #2 camera 302 and the director, and the display 13 synchronously displays the cancellation of the listen and talk state of the #1 camera 301 and the #2 camera 302.
Example three:
it is established that the #1 camera 301, the #2 camera 302, and the #4 camera 304 only listen to the director's speech: pressing the #1 station key, the #2 station key and the #4 station key, pressing the listen function key, and pressing the confirm key recently establishes that the #1 camera 301, the #2 camera 302 and the #4 camera 304 only listen to the director's speech, while the display 13 synchronously displays that the #1 camera 301, the #2 camera 302 and the #4 camera 304 are in listen state.
Example four:
the Tally state of the #3 cameras 303 and #4 cameras 304 is established: pressing the #3 station key and the #4 station key respectively, and then pressing the Tally function key, wherein the green lights of the #3 shooting device 303 and the #4 shooting device 304 are turned on; then, the confirmation key is pressed, and at this time, the #3 photographing device 303 and the #4 photographing device 304 turn on the red light and turn off the green light; at this time, the Tally states of the #3 cameras 303 and the #4 cameras 304 are established, and the Tally states of the #3 cameras 303 and the #4 cameras 304 are synchronously displayed on the display 13.
Example five:
cancel Tally state of #3 cameras 303, #4 cameras 304: pressing a #3 machine position key and a #4 machine position key respectively, pressing a Tally function key, and pressing a confirmation key, wherein red lights of the #3 shooting device 303 and the #4 shooting device 304 are turned off; cancellation of the Tally state of the #3 photographing apparatuses 303 and the #4 photographing apparatuses 304 is completed, and the display 13 simultaneously displays the Tally state cancellation of the #3 photographing apparatuses 303 and the #4 photographing apparatuses 304 in synchronization.
Example six:
the corresponding functions are established or cancelled with all the cameras 30: at first, the corresponding function with all the machine positions is established or cancelled by pressing only one or more function keys without pressing any machine position key and then pressing a confirmation key, and simultaneously, the display 13 synchronously displays the corresponding states established or cancelled by all the machine positions.
By adopting the many-to-one field scheduling device 10, the real-time monitoring of the working state of the shooting device 30 at different angles on the field can be realized, and the scheduling control of the shooting device 30 can be quickly completed only by simple operation of the first input device 11 and the second input device 12, so that the shooting efficiency and the scheduling accuracy are greatly improved, in addition, the scheduling device 10 is small in size, convenient to carry, low in cost, wide in application range and applicable to any occasion needing to be subjected to field scheduling.
According to the flexible routing many-to-one high-definition video transmission system, the many-to-one field scheduling equipment 10 is adopted, scheduling control over the plurality of shooting devices 30 can be achieved, scheduling efficiency is high, accuracy is high, shooting efficiency is greatly improved, meanwhile, synchronous display of any one or more shooting pictures in the plurality of shooting devices 30 or real-time switching of the shooting pictures of the plurality of shooting devices 30 can be achieved through an intelligent terminal, viewing intuitiveness is enhanced, shooting adjustment and control are facilitated, and timeliness and flexibility are improved.
Further, the flexible routing many-to-one high definition video transmission system of the embodiment of the present invention further includes:
a director 50 or a cloud server 60 communicatively connected to the receiving device;
the director station 50 or the cloud server 60 is configured to receive and store the current high-definition videos captured by the plurality of cameras 30 in real time, and send the current high-definition videos captured by the plurality of cameras 30 to the high-definition video live broadcast station. By sending the high-definition video data to the high-definition video live broadcast platform, real-time transmission and watching of on-site shooting can be achieved.
Further, the director 50 may also store the received high definition video data for subsequent viewing, editing, etc. of the live shot high definition video. Likewise, the cloud server 60 may also implement storage of the received high-definition video data for subsequent viewing, clipping, or other processing of the live shot high-definition video, and the like.
In the embodiment of the present invention, all the shooting devices 30 transmit the current high definition video shot by each shooting device to the receiving device 20, and each shooting device transmits the current high definition video shot according to a preset time slot, where only one wireless signal is occupied.
In order to avoid complicated connection lines, in the flexible routing many-to-one high-definition video transmission system implemented by the invention, the connection between the plurality of shooting devices 30 and the receiving device, between the receiving device and the many-to-one field scheduling equipment, between the receiving device and the cloud server, and between the receiving device and the director can be realized through at least one of a bluetooth communication module, a 3G communication module, a 4G communication module, a 5G communication module, an LTE communication module, a WiMax communication module, and a WIFI communication module or other wireless communication modules.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (8)
1. A flexible routing many-to-one high-definition video transmission method is applied to a film and television shooting system and is characterized by comprising the following steps:
s1, shooting high-definition videos by a plurality of shooting devices and outputting the shot current high-definition videos in real time;
s2, the shooting devices detect whether the data transmission states of the shooting devices meet the transmission conditions, if so, the step S3 is executed, and if not, the step S4 is executed;
s3, the shooting device meeting the transmission condition transmits the shot current high-definition video to the receiving device;
s4, detecting the data transmission state of other shooting devices by the shooting device which does not meet the transmission condition, judging whether the data transmission state of other shooting devices is a transmittable state, and if so, transmitting the current high-definition video shot by the shooting device which does not meet the transmission condition to a receiving device by the other shooting devices; the other shooting devices and the shooting device which does not meet the transmission condition are shooting devices of the same network;
the step S4 includes:
s41, the shooting device which does not meet the transmission condition sends a data transmission state detection instruction to other shooting devices;
s42, the other shooting devices detect the data transmission state of the other shooting devices according to the data transmission state detection instruction, and return detection results to the shooting devices which do not meet the transmission conditions;
s43, the shooting device meeting the transmission condition determines whether the data transmission state of the other shooting device is a transmittable state according to the detection result;
s44, if the data transmission state of the other shooting devices is a transmittable state, the shooting device which does not meet the transmission condition splits the current high-definition video shot by the shooting device according to the bandwidth of the transmittable state of the other shooting devices;
s45, the shooting device which does not meet the transmission condition sends the split current high-definition video to other shooting devices of which the data transmission state is a transmittable state;
and S46, sending the received current high-definition video to the receiving device by the other shooting devices with the data transmission states being transmittable.
2. The flexibly routed many-to-one high definition video transmission method of claim 1, further comprising the steps of:
if the data transmission states of the other shooting devices are all non-transmittable states, the shooting device which does not meet the transmission condition reduces the code rate of the shooting device so that the data transmission state of the shooting device meets the transmission condition;
or if the data transmission states of the other shooting devices are all the non-transmission states, the shooting device which does not meet the transmission condition reduces the resolution or the frame rate of the shooting device so that the data transmission state of the shooting device meets the transmission condition.
3. The flexibly routed many-to-one high definition video transmission method of claim 1, further comprising the steps of:
s5, the receiving device receives the current high-definition video transmitted by the shooting device meeting the transmission condition and the current high-definition video transmitted by the other shooting devices;
s6, the receiving device sends the current high-definition video transmitted by the shooting device meeting the transmission condition to the intelligent terminal, integrates the current high-definition video transmitted by other shooting devices, and sends the integrated current high-definition video to the intelligent terminal;
and S7, the intelligent terminal displays the current high-definition video sent by the receiving device in real time.
4. The flexible-routing many-to-one high-definition video transmission method according to claim 3, wherein the step S7 comprises:
the intelligent terminal displays the current high-definition videos shot by the shooting devices in a multi-screen or single-screen mode in real time, and achieves switching between multi-screen display and single-screen display according to the received operation instructions input by the user.
5. The flexibly routed many-to-one high definition video transmission method of claim 1, further comprising:
the receiving device receives the working state information of the plurality of shooting devices sent by the many-to-one field scheduling equipment and sends the received working state information of the plurality of shooting devices to the intelligent terminal;
and the intelligent terminal displays the working state information of the plurality of shooting devices in real time.
6. A flexible routing many-to-one high definition video transmission system comprising: the intelligent terminal comprises a plurality of shooting devices, a receiving device in communication connection with the shooting devices, and an intelligent terminal in communication connection with the receiving device;
the shooting devices are used for shooting high-definition videos and outputting the shot current high-definition videos in real time, detecting whether the data transmission state of the shooting devices meets the transmission condition before sending the shot current high-definition videos, if so, directly transmitting the shot current high-definition videos to the receiving device, if not, detecting the data transmission state of other shooting devices by the shooting devices which do not meet the transmission condition, judging whether the data transmission state of the other shooting devices is a transmittable state, and if so, transmitting the current high-definition videos shot by the shooting devices which do not meet the transmission condition to the receiving device through the other shooting devices; the other shooting devices and the shooting device which does not meet the transmission condition are shooting devices of the same network;
the shooting device which does not meet the transmission condition sends a data transmission state detection instruction to other shooting devices; the other shooting devices detect the data transmission state of the other shooting devices according to the data transmission state detection instruction and return detection results to the shooting devices which do not meet the transmission conditions; the shooting device meeting the transmission condition determines whether the data transmission state of the other shooting devices is a transmittable state according to the detection result; if the data transmission state of the other shooting devices is a transmittable state, the shooting device which does not meet the transmission condition splits the current high-definition video shot by the shooting device according to the bandwidth of the transmittable state of the other shooting devices; the shooting device which does not meet the transmission condition sends the split current high-definition video to other shooting devices of which the data transmission states are transmittable; the other shooting devices with the data transmission states being transmittable states send the received current high-definition video to the receiving device;
the receiving device is used for sending the current high-definition video sent by the shooting device meeting the transmission condition to the intelligent terminal, integrating the current high-definition video sent by other shooting devices and sending the integrated current high-definition video to the intelligent terminal;
and the intelligent terminal is used for displaying the current high-definition videos shot by the shooting devices in real time.
7. The flexibly routed many-to-one high definition video transmission system of claim 6, further comprising:
a many-to-one field scheduling device in communication connection with the receiving device; the many-to-one field scheduling equipment is used for outputting control signals and the working state information of the plurality of shooting devices to the receiving device according to operation instructions input by a user and displaying the working state information of the plurality of shooting devices in real time;
the receiving device is further used for transmitting the control signal to the plurality of shooting devices and transmitting the working state information of the plurality of shooting devices to the intelligent terminal;
and the intelligent terminal is also used for displaying the working state information of the plurality of shooting devices in real time.
8. The flexibly routed many-to-one high definition video transmission system of claim 6, further comprising:
the broadcasting station or the cloud server is in communication connection with the receiving device;
and the broadcasting guide station or the cloud server is used for receiving and storing the current high-definition videos shot by the shooting devices in real time and sending the current high-definition videos shot by the shooting devices to the high-definition video live broadcast station.
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| CN102497534B (en) * | 2011-12-01 | 2014-10-29 | 吕宁 | Distribution network full high definition video matrix system |
| CN103067690B (en) * | 2012-11-14 | 2016-06-29 | 广东中钰科技股份有限公司 | The method of balanced transmission audio, video data and device based on intelligent monitoring platform |
| CN104284139B (en) * | 2013-07-05 | 2017-09-01 | 深圳市江波龙电子有限公司 | Network video device and its transmission of video control system and method |
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| CN104601960B (en) * | 2015-01-30 | 2018-01-12 | 深圳市视晶无线技术有限公司 | Movies-making control management method and system |
| CN107682258A (en) * | 2017-09-27 | 2018-02-09 | 北京邮电大学 | A kind of multi-path network transmission method and device based on virtualization |
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