CN107404602B - A remote prompt method based on video communication channel data weaving - Google Patents

Abstract

The invention discloses a remote prompting method based on video communication channel data weaving, which comprises the following steps: determining a prompted target machine position; detecting the state of a remote prompting lamp of the prompted target machine position; the remote prompting lamp comprises an internal or/and external prompting lamp; synthesizing a remote prompting instruction in a video communication channel by using a composite data weaving mode and sending the remote prompting instruction to the prompted target machine position; the prompted target machine position identifies and extracts the remote prompting instruction from the video communication channel; and the prompted target machine position lights, extinguishes or modulates the color of a built-in or/and external prompting lamp according to the instruction list of the remote prompting instruction. The implementation of the remote prompting method based on the video communication channel data weaving has the following beneficial effects: the interactive experience of a plurality of working groups of the director, the shooter and the performer is better, the cooperative work can be realized, the prompt feedback is more accurate, and the use space is not limited.

Description

A remote prompt method based on video communication channel data weaving

technical field

The invention relates to the field of transmission control of video shooting, in particular to a remote prompt method based on video communication channel data weaving.

Background technique

As the production quality requirements of program production and large-scale events are getting higher and higher, the production team is getting bigger and bigger, and the requirements for collaborative work are getting higher and higher. However, unlike the traditional intercom call collaboration scenarios, many production sites are extremely inconvenient for directors, videographers and performers to collaborate based on intercom collaboration or a single prompt unit. A new prompt system is needed to improve the team’s understanding of Program production efficiency.

In the traditional technology, the prompting operation of the director to the videographer and the performer is completed by a typical single-line DC prompt light. This is reasonable in the stage of small-scale production with few personnel, but in the era of large-scale events or large-scale program production, due to the cross-spatial distribution of cameras and the large-scale increase of video crews and performers, this non-networked structure is impossible. implemented and used.

Currently, a common alternative to the traditional single-wire DC beacon is by superimposing the beacon command in the transmission cable. The director uses the switcher to remotely cue the application. However, this method can only be realized by means of an external reminder light, which not only fails to fully remind the filming staff, but even causes the filming staff and performers to produce asynchronous work behaviors, which greatly affects the quality of the program production.

To sum up, none of the existing technologies or methods can effectively solve the need for the co-working of the directors, filmmakers and performers in the current program production or large-scale activities, and there are poor interactive experience, inaccurate prompt feedback, and limited space for use. And other issues. This is the main technical problem currently hindering the production of high-quality programs and the recording and broadcasting of large-scale events.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is that, aiming at the defects of the above-mentioned multiple working groups of directors, photographers and performers in the prior art, the interaction experience is poor, they cannot work together, the prompt feedback is inaccurate, and the use space is limited. The remote prompting method based on video communication channel data weaving has better interaction experience, can work collaboratively, prompt feedback is more accurate, and use space is not limited.

The technical scheme adopted by the present invention to solve the technical problem is: constructing a remote prompt method based on video communication channel data weaving, comprising the following steps:

A) Determine the prompted target position;

B) Detecting the state of the remote prompt light of the prompted target position; the remote prompt light includes a built-in or/and an external prompt light;

C) in the video communication channel, use the mode of compound data weaving to synthesize the remote prompt instruction and send it to the prompt target position;

D) The prompted target position identifies and extracts the remote prompt command from the video communication channel;

E) According to the instruction table of the remote prompting instruction, the prompted target position lights up, goes out or tones its built-in or/and external prompting light.

In the remote prompting method based on video communication channel data weaving according to the present invention, when the prompted target position is determined in the step A), when the prompted target position is connected to the video communication channel network, according to the The synchronization protocol performs handshake authentication with the command network and joins the controlled network.

In the remote prompting method based on video communication channel data weaving according to the present invention, when the state of the remote prompting light of the prompting target position is detected in the step B), the prompting is read in reverse by reading the prompting light. The target camera feeds back to the remote prompting instruction issuing node whether the current state of the remote prompting light is in a working state or a non-working state.

In the remote prompting method based on video communication channel data weaving according to the present invention, in the step B), it also includes reading and analyzing the adapter state value and the airframe state value of the prompted target position .

In the remote prompting method based on video communication channel data weaving according to the present invention, in the step C), data weaving is performed on all remote prompting instructions in the shooting system, and inserted into any position between video communication channel data frames , which is used to implement remote real-time prompts and remote prompts under various topology types.

In the remote prompting method based on video communication channel data weaving according to the present invention, the topology types include bus topology, star topology, tree topology, ring topology, mesh topology and cascade topology.

In the remote prompting method based on video communication channel data weaving according to the present invention, in the step C), during data weaving, the remote prompting instruction is encoded into a data stream with a feature code, the data The code stream is randomly inserted between any two data frames of the video communication channel, and is transmitted to any prompted target position or designated prompted target position via the video communication channel network.

In the remote prompting method based on video communication channel data weaving according to the present invention, in the step D), when the prompted target station identifies and extracts the remote prompting instruction, it includes data frame matching code Identification, frame detection mechanism based on data verification, and extraction and analysis based on bitwise encoding of data instructions.

In the remote prompting method based on video communication channel data weaving according to the present invention, the initiator of the remote prompting instruction is connected with the prompted target position through Ethernet, optical network or coaxial cable.

In the remote prompting method based on video communication channel data weaving according to the present invention, the prompted target position is a camera, a camera adapter, a switcher, a control unit, a remote control panel, a matrix, an image processor and a monitor. any one or more of them.

Implementing the remote prompting method based on video communication channel data weaving of the present invention has the following beneficial effects: by inserting remote prompting instructions, that is, remote prompting light control instructions, by using composite data weaving in the video communication channel, the prompting target position is The built-in or/and external prompt lights can be turned on, off or toned, used for multi-camera prompts during the shooting of TV programs and performances, so as to improve the collaboration efficiency of multiple working groups of directors, videographers and performers The purpose is that the multiple working groups of the director, filming staff and performers have better interactive experience, can work together, prompt feedback is more accurate, and the use of space is not limited.

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 from these drawings without any creative effort.

Fig. 1 is the flow chart in one embodiment of the remote prompt method based on video communication channel data weaving of the present invention;

2 is a schematic diagram of a bus topology in the embodiment;

3 is a schematic diagram of a star topology in the embodiment;

4 is a schematic diagram of a tree topology in the embodiment;

FIG. 5 is a schematic diagram of a ring topology in the embodiment

6 is a schematic diagram of a mesh topology in the embodiment;

FIG. 7 is a schematic diagram of a cascaded topology structure in the embodiment.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the embodiment of the remote prompt method based on video communication channel data weaving of the present invention, the flowchart of the remote prompt method based on video communication channel data weaving is shown in FIG. 1 . In Fig. 1, the remote prompting method for weaving video communication channel data comprises the following steps:

Step S01: Determine the prompted target position: In this step, determine the prompted target position. In this embodiment, the prompted target position is a camera, a camera adapter, a switcher, a control unit, a remote control panel, a matrix, and image processing. any one or more of monitors and monitors. Of course, in some cases in this embodiment, the prompted target location may also be other devices. It is worth mentioning that, in this step, when the prompted target position is determined, when the prompted target position accesses the video communication channel network, it performs handshake authentication with the command network according to the synchronization protocol and joins the controlled network.

Step S02 Detecting the state of the remote prompting light of the prompted target position: In this step, the state of the remote prompting light of the prompted target position is detected, and the remote prompting light includes built-in or/and external prompting lights. In this step, when the state of the remote prompt light of the prompted target position is detected, the state of the current remote prompt light is in a working state or a non-working state by reading the prompt target position in reverse to the remote prompt command issuing node. In this step, the reading and analysis of the adapter state value and the airframe state value of the prompted target aircraft position are also included.

Step S03 uses the composite data weaving method to synthesize the remote prompt instruction in the video communication channel and send it to the prompted target position: in this step, use the composite data weaving method to synthesize the remote prompt instruction in the video communication channel and send it to the target station. Sent to the prompted target. Specifically, in this step, data weaving is performed on all remote prompt instructions in the shooting system, and inserted into any position between the data frames of the video communication channel, thereby realizing remote real-time prompting within 10 milliseconds; based on the data weaving technology, it is also possible to Realize remote prompts under various topology types, thereby improving the wide adaptability of system deployment and applications. In this embodiment, the initiator of the remote prompting instruction and the prompting target position are connected through an Ethernet, an optical network or a coaxial cable.

It is worth mentioning that the above topology types include bus topology, star topology, tree topology, ring topology, mesh topology and cascade topology. Fig. 2 is a schematic diagram of a bus topology in this embodiment; Fig. 3 is a schematic diagram of a star topology in this embodiment; Fig. 4 is a schematic diagram of a tree topology in this embodiment; Fig. 5 is a schematic diagram of a ring topology in this embodiment FIG. 6 is a schematic diagram of a mesh topology in this embodiment; FIG. 7 is a schematic diagram of a cascaded topology in this embodiment. Of course, in this embodiment, the above-mentioned topology type may also be other types of topology structures, such as: a hybrid topology structure, a cellular topology structure, and the like.

In addition, when performing data weaving, the remote prompt command is encoded into a data stream with a feature code, and the data stream is randomly inserted between any two data frames of the video communication channel, and transmitted to any prompt via the video communication channel network. Target position or specify the prompted target position.

For the data weaving technology, based on the synthesis and decomposition of the instruction table and parameters, based on the verification technology to ensure the accuracy and anti-interference of the transmitted data, based on the symmetric codec technology, any prompted target position in the video communication channel network can be Realize the remote prompt function, including but not limited to the built-in prompt light of the camera, the external prompt light, the eyepiece prompt light, the monitor prompt light and the monitor screen software prompt, etc.

In step S04, the prompted target position identifies and extracts the remote prompt command from the video communication channel: In this step, the prompted target position identifies and extracts the remote prompt command from the video communication channel, and the prompted target position identifies and extracts the remote prompt command. When identifying and extracting remote prompt instructions, it includes data frame pair code identification, frame detection mechanism based on data verification, and extraction and analysis based on bit-wise encoding of data instructions. In other words, it is equivalent to decomposing the remote prompt instruction from the video communication channel by the prompted target station, and after decomposing, the instruction table will be obtained.

In step S05, the prompted target camera positions its built-in or/and external prompt lights on, off or toning according to the instruction table of the remote prompt instruction: in this step, any prompted target camera position is based on the instruction table of the remote prompt instruction. Turns on, off or tones its built-in or/and external tally lights. In practical application scenarios, it can be implemented by different types of topologies shown in FIGS. 2 to 7 . The present invention controls the built-in and external prompt lights of remote cameras, monitors and other equipment by inserting remote prompt instructions (ie prompt light control instructions) by using composite data weaving in the video communication channel, and is used for TV programs and performances. Multi-camera tips during event shooting. In order to achieve the purpose of improving the collaboration efficiency of multiple working groups of directors, videographers and performers.

In a word, the present invention realizes scenarios based on various network topology structures and spatial distribution by weaving composite data in the video communication channel, extracting and completing remote prompting instructions and issuing them to various types of prompting terminals. The purpose of working with multiple working groups of performers. The remote prompt method based on video communication channel data weaving of the present invention overcomes the limitations of the existing prompt technology such as single connection, short transmission, difficult expansion and small scale, has strong practical value, and is suitable for large-scale program production and large-scale event shooting. Laid the foundation.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (8)

1. A remote prompting method based on video communication channel data weaving is characterized by comprising the following steps:

A) determining a prompted target machine position;

B) detecting the state of a remote prompting lamp of the prompted target machine position; the remote prompting lamp comprises an internal or/and external prompting lamp;

C) synthesizing a remote prompting instruction in a video communication channel by using a composite data weaving mode and sending the remote prompting instruction to the prompted target machine position;

D) the prompted target machine position identifies and extracts the remote prompting instruction from the video communication channel;

E) the prompted target machine position lights, extinguishes or modulates colors of a built-in or/and an external prompting lamp according to the instruction list of the remote prompting instruction;

in the step C), data weaving is carried out on all remote prompt instructions in the shooting system, and the remote prompt instructions are inserted into any position between data frames of video communication channels and are used for realizing remote real-time prompt and remote prompt under various topological types;

in the step C), when data weaving is carried out, the remote prompting instruction is coded into a section of data code stream with the feature code, the data code stream is randomly inserted between any two data frames of the video communication channel and is transmitted to any prompted target machine position or appointed prompted target machine position through the video communication channel network.

2. The video-communication-channel-data-weaving-based remote prompting method as claimed in claim 1, wherein, when determining the prompted target machine position in said a), the prompted target machine position performs handshake authentication with the instruction network and joins the controlled network according to the synchronization protocol when accessing the video communication channel network.

3. The video communication channel data weaving-based remote prompting method as claimed in claim 1, wherein when detecting the state of the remote prompting lamp of the prompted target machine position in said B), the prompted target machine position is read reversely to feed back the current state of the remote prompting lamp to the remote prompting instruction issuing node to be in an operating state or a non-operating state.

4. The video communication channel data weaving-based remote prompting method as recited in claim 1, further comprising reading and analyzing the adapter status value and the body status value of the prompted target machine position in said B).

5. The video communication channel data weaving-based remote prompting method as defined in claim 1 wherein the topology types include a bus type topology, a star type topology, a tree type topology, a ring type topology, a mesh type topology and a cascade type topology.

6. The video communication channel data weaving-based remote prompting method as claimed in claim 1, wherein in D), said prompted target machine bit identifies and extracts said remote prompting command, and comprises data frame pair code identification, frame detection mechanism based on data check, and extraction and analysis based on data command bit-by-bit coding.

7. The video communication channel data weaving-based remote cue method according to claim 1, wherein the initiator of the remote cue command and the cued target machine are connected through ethernet, optical network or coaxial cable.

8. The video communication channel data weaving-based remote prompting method according to claim 1, wherein the prompted target machine position is any one or more of a camera, a camera adapter, a switching station, a control unit, a remote control panel, a matrix, an image processor and a monitor.

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