CN115314478B - All-IP audio-video system applied to financial system - Google Patents
All-IP audio-video system applied to financial system Download PDFInfo
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- 230000005540 biological transmission Effects 0.000 claims abstract description 32
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- 238000000034 method Methods 0.000 claims description 91
- 230000008569 process Effects 0.000 claims description 89
- 238000012544 monitoring process Methods 0.000 claims description 39
- 238000009826 distribution Methods 0.000 claims description 30
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 230000006870 function Effects 0.000 claims description 15
- 238000004806 packaging method and process Methods 0.000 claims description 13
- 238000005516 engineering process Methods 0.000 claims description 11
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
- H04L65/4061—Push-to services, e.g. push-to-talk or push-to-video
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
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Abstract
The invention relates to the technical field of audio and video communication, and discloses an all-IP audio and video system applied to a financial system. According to the invention, an audio and video network transmission protocol of NDI is adopted to replace the traditional SDI signal transmission, so that the IP and IT of the whole technical system are realized; the invention truly realizes media super fusion, realizes low cost, high image quality, low delay and quick deployment, realizes complete IP transformation of traditional media, and perfectly connects various broadcasting platforms such as the Internet.
Description
Technical Field
The invention relates to the technical field of audio and video communication, in particular to an all-IP audio and video system applied to a financial system.
Background
Currently, conventional financial systems, particularly video content updates in financial sites, are performed manually, with a large amount of effort and a long update period. Moreover, the updating of the video programs of the financial system adopts an off-line paper circulation mode, is checked layer by each management department, and then is manually copied by staff, so that the program updating period is long, the timeliness is poor, the updating frequency is low, and the workload of the staff of the financial system is increased. Meanwhile, the centralized supervision is lacking, and the manager cannot master the playing condition of each financial website in real time.
IP-based, cloud computing and big data are key technologies in the converged media era, and the national three-network convergence strategy plan has been implemented. At the same time of the vigorous development of mobile networks and the Internet, how to make up the own short board and expand the service range by using the emerging technology by a financial system, and coping with the integration of three networks is a serious challenge facing financial people. Therefore, research on a financial system media broadcasting control technology is needed, a service concept is innovated, related service resources are integrated, a brand-new service chain is constructed, fine and intelligent management and control of video programs are realized, financial service institutions including various financial sites are converted into intelligent multimedia display screens, and a financial media service platform with timeliness, safety and temperature is provided for customers; meanwhile, the workload of staff is reduced, and the updating frequency and the content timeliness of the financial system video are improved.
In summary, developing an all-IP audio-video system applied to a financial system to truly realize media super-integration, realize low cost, high image quality, low delay and rapid deployment of audio-video playing control of the financial system, and realize complete IP transformation on the financial media to enable the financial media to perfectly butt against various playing platforms such as internet and the like has become a problem to be solved.
Disclosure of Invention
The invention aims to provide an all-IP audio-video system applied to a financial system so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
An all IP audio and video system applied to a financial system is based on NDI and adopts an audio and video network transmission protocol of NDI, and is characterized by comprising a transmission module, an access module, a scheduling module, a monitoring module, a LIVE making module, a broadcasting module, a security module, a recording module, a storage module, a post making module and a distribution module, wherein,
The transmission module is used for realizing real-time feedback of mobile signals and high-bandwidth signal feedback;
The access module is used for realizing the receiving convergence of the internet signal flow and converting the received signal into an NDI signal;
the scheduling module adopts a matrix router based on NDI to realize switching scheduling of signals;
the monitoring module is used for monitoring the NDI signal and giving a signal alarm when the frame loss is found;
the LIVE manufacturing module adopts an online manufacturing tool set to carry out field editing and manufacturing on the NDI signal;
the broadcasting module adopts an NDI master control broadcasting system to broadcast real-time streams and simultaneously monitors the states of all broadcasting processes;
the safety module is used for guaranteeing the broadcasting safety;
the recording module adopts a centralized recording system based on NDI to realize file recording aiming at the NDI signal;
the storage module is used for storing the NDI signals recorded by the recording module;
the post-production module adopts an online editing system based on Adobe Premiere to realize online editing of the NDI signals recorded by the recording module;
the distribution module is used for realizing the conversion of the NDI signals and pushing the converted signals to the third party platform in real time.
Preferably, the transmission module adopts a 5G-SRT multi-path aggregation video transmission knapsack mode, a mobile phone SRT push mode or an Internet video platform mode, wherein,
The 5G-SRT multichannel aggregation video transmission knapsack mode provides a 5G and/or 4G link-based multi-network fusion communication channel by utilizing a multi-link intelligent aggregation technology and an SRT video transmission technology, and transmits low-delay high-image-quality 4K and/or high-definition video signals to an access module;
The SRT push mode of the mobile phone adopts the SRT push mode to realize the signal real-time transmission to the access module;
the internet video platform mode adopts an RTMP protocol to transmit internet video to the access module.
Preferably, the access module receives aggregate internet signal streams including RTMP, HLS, SRT, DVB-UDP, webRTC, or other internet signal streams;
The access module supports the functions of signal loss monitoring and a safety gasket, supports the broadcasting of the gasket when the network signal is lost, and automatically recovers the signal when the network is recovered;
In the access module, SRT signal flow realizes one-to-many sending and receiving through the streaming media server, and a user does not need to have a public network address; and meanwhile, localized deployment of the SRT streaming media server is also provided, so that low-delay application based on the Internet is truly realized.
Preferably, the functions supported by the NDI-based matrix router in a full routing manner include:
the CPU, the memory and the bandwidth of the service are not occupied in the switching process, and meanwhile, the power-off direct connection of the server is realized;
all NDI signals in the local area network are displayed, and grouping display can be performed according to equipment to which the NDI signals belong;
setting the name of the output NDI signal, and grouping the NDI signals to match different application targets;
switching and group switching of single-path signals, and realizing one-key emergency switching aiming at one group of signals;
monitoring each path of source signals and each path of target signals through software;
And the binding of the main and the standby and the multi-picture linkage are realized, and the main and the standby switching of the NDI signal is realized.
Preferably, the monitoring module can set multiple picture types at will, can set NDI signals, names and image quality of each picture, and can uniformly start and stop all pictures or a single picture;
the monitoring module supports signal monitoring, and signal alarm is carried out when video frame loss is found;
the LIVE making module supports NDI switching station, NDI matting, CG editing and picture-in-picture packaging connection.
Preferably, the NDI total control broadcasting system comprises a list-editing central control unit and a broadcasting service process unit, wherein,
The list editing central control unit is used for monitoring the states of all broadcasting processes, including monitoring a plurality of NDI broadcasting service processes on a plurality of servers, and reflecting whether the processes die in real time;
the editing center control unit supports the broadcasting editing of each broadcasting process, selects audio and video files and NDI signals in various main stream formats to edit, and automatically obtains the duration of the video files and the address of the NDI signals;
The list editing central control unit supports 3 modes of forward and timing inserting and forward and timing arranging;
The bill making central control unit supports the copying of the bill making according to the day, week and month;
The grouping central control unit supports grouping each broadcasting channel to realize group grouping synchronization;
The list editing central control unit supports adding emergency statistics to each broadcasting channel or a group of broadcasting channels, a user designs a subtitle form of an emergency notification, emergency characters are modified in a central control interface, and one-key up and down notification is carried out;
The broadcasting service process unit supports that when a single click reading list is opened, the serial list on the current day is read to broadcast programs;
the broadcasting service process unit supports the broadcasting of NDI for high definition or 4K according to configuration software and unified frame rate;
The broadcasting service process unit adopts a FULL NDI mode, wherein the transmission rate of the high-definition video signal is 100Mbps, and the transmission rate of the 4K signal is 300Mbps;
the broadcasting service process unit supports that when a current program is broadcasted, a next video or NDI signal of CUE can be automatically generated, and when a broadcasting time point is reached, the next program can be automatically switched with seamless frame precision;
the broadcasting service process unit supports automatic broadcasting of the gasket picture when no video or NDI signal exists;
the broadcasting service process unit supports that the last frame can be automatically broadcasted when the frame is lost, and the gasket is automatically switched when the count reaches 25 frames;
the broadcasting service process unit supports superposition of station marks according to the setting;
The broadcasting service process unit supports superposition of emergency broadcasting free captions;
the broadcasting service process unit supports the synchronous output of the hardware IO card and the NDI signal.
Preferably, the recording module comprises a recording central control unit and a recording service process unit, wherein,
The recording central control unit is used for monitoring the states of all broadcasting processes, including monitoring a plurality of NDI recording service processes on a plurality of servers, and reflecting whether the processes die in real time;
The recording central control unit supports the arrangement of a recording plan for each recording process;
The recording central control unit supports the copying of the plan list according to the day, week and month;
The recording central control unit supports grouping each recording channel to realize group plan single synchronization;
The recording central control unit supports remote NDI preview of the baseband signal;
the recording service process unit supports the input of an NDI/SDI signal and detects the frame loss condition of the NDI signal in real time;
The recording service process unit supports the NDI output of the default supporting baseband signal, provides a low-code-rate real-time preview based on the NDI for the central control software, and is convenient for operation and configuration;
The recording service process unit supports file recording aiming at the NDI signal and supports a song cutting function, namely if a user wants to edit immediately in the recording process, the song cutting button can be clicked, a video can be saved for a section immediately, and frames between the video recorded next and the current video are continuous;
recording service process units support recording of SD, HD and 4K;
in the recording service process unit, the 4K signal supports the color gamut of H265 bt2020, and the recording support GPU realizes multi-channel synchronous recording according to a single machine;
The recording service process unit supports signal recording according to the arranged plan;
the recording service process unit supports recording locally and synchronously migrates.
Preferably, the distribution module supports the input of the NDI/SDI signal and detects the frame loss condition of the NDI signal in real time;
The distribution module supports RTMP, SRT, DVB-UDP push;
The distribution module supports RTMP and SRT streaming media servers based on the Arian cloud on the Internet to realize signal distribution;
The distribution module supports RTMP and each large Internet live broadcast platform to be in butt joint;
the distribution module supports a function of editing multiple hairs;
The distribution module supports converting DVB-UDP NDI signals into UDPSTPS signals of DVB standards, realizes seamless connection of the NDI signals and the cable television signal standards, and realizes synchronous broadcasting of new media and traditional media;
the distribution module supports the function of a non-NDI signal gasket, and the STANDBY heartbeat detection and the active-STANDBY switching of push flow.
Preferably, in the post-production module, an insert is built in Adobe premier to realize the management of the recorded materials;
the online editing system can refresh the new recording materials in real time;
the online editing system can submit and save, realize linkage with the recording server, realize the saving of the recording server, automatically refresh the material library and realize editing of the program;
The online clipping system clips and submits a packaging server based on Adobe Media Encode, so that packaging and export of an Internet format are realized;
and the online clipping system synthesizes through the selection modes, and submits a third party packaging server to realize the content generation of the fixed mode.
Preferably, the security module includes an NDI-based delayed play-out mode and an NDI stream maintenance one-out-of-multiple mode, wherein,
The delay broadcasting mode based on NDI supports NDI signal input and output, supports picture quality customization, supports lossless storage, supports obtaining frame loss data of video signals in real time, supports simultaneously seeing an original picture and a delayed picture, and delays the maximum time for 1 hour;
in the mode of maintaining the NDI flow in multiple options, monitoring and outputting an NDI signal in real time, and switching backwards in sequence after finding out that the frame is lost for 2 seconds;
the technical support based on NDI Router is adopted to support power-off direct connection, and the link in use is not affected under the condition of software closing;
the memory function is supported, and the last closed setting is automatically loaded by restarting.
Compared with the prior art, the invention has the beneficial effects that:
According to the invention, an audio and video network transmission protocol of NDI is adopted to replace the traditional SDI signal transmission, so that the IP and IT of the whole technical system are realized; the invention truly realizes media super fusion, low cost, high image quality, low delay and quick deployment, realizes complete IP transformation of traditional media, and perfectly connects various broadcasting platforms such as Internet.
Drawings
Fig. 1 is a schematic view of a structural framework of the present invention.
Detailed Description
Referring to fig. 1, in an embodiment of the present invention, an all-IP audio/video system applied to a financial system, based on NDI and adopting an audio/video network transmission protocol of NDI, includes a transmission module, an access module, a scheduling module, a monitoring module, a LIVE making module, a broadcasting module, a security module, a recording module, a storage module, a post making module and a distribution module, wherein,
The transmission module is used for realizing real-time feedback of mobile signals and high-bandwidth signal feedback;
The access module is used for realizing the receiving convergence of the internet signal flow and converting the received signal into an NDI signal;
the scheduling module adopts a matrix router based on NDI to realize switching scheduling of signals;
the monitoring module is used for monitoring the NDI signal and giving a signal alarm when the frame loss is found;
the LIVE manufacturing module adopts an online manufacturing tool set to carry out field editing and manufacturing on the NDI signal;
the broadcasting module adopts an NDI master control broadcasting system to broadcast real-time streams and simultaneously monitors the states of all broadcasting processes;
the safety module is used for guaranteeing the broadcasting safety;
the recording module adopts a centralized recording system based on NDI to realize file recording aiming at the NDI signal;
the storage module is used for storing the NDI signals recorded by the recording module;
the post-production module adopts an online editing system based on Adobe Premiere to realize online editing of the NDI signals recorded by the recording module;
the distribution module is used for realizing the conversion of the NDI signals and pushing the converted signals to the third party platform in real time.
Further, the transmission module adopts a 5G-SRT multi-path aggregation video transmission knapsack mode, a mobile phone SRT push mode or an Internet video platform mode, wherein,
The 5G-SRT multichannel aggregation video transmission knapsack mode provides a 5G and/or 4G link-based multi-network fusion communication channel by utilizing a multi-link intelligent aggregation technology and an SRT video transmission technology, and transmits low-delay high-image-quality 4K and/or high-definition video signals to an access module;
The SRT push mode of the mobile phone adopts the SRT push mode to realize the signal real-time transmission to the access module;
the internet video platform mode adopts an RTMP protocol to transmit internet video to the access module.
Parameters of the 5G-SRT multi-path aggregate video transport backpack include: the main chip adopts Hua Hei Si chip; 4K and high definition image quality are supported; ultra-low delay, off-site cross-network high definition video backhaul delay is less than 800 milliseconds; the network requirement on the receiving end is low, a stable network is provided, and the public network IP is not required to be matched; the system has 6 USB, and maximally supports 7-channel aggregation of 6 paths of 5G/4G networks and 1 path of wired broadband; the HD-SDI input is provided, and 1080/60P input is supported at highest; the device is provided with HDMI input, and the highest support is 4K 2160/30P input; supporting a call; h.264 and H.265 codes are supported, and the maximum code stream is 40M; support RTMP, RTSP, SRT, NDIHX and other various coding outputs; the internal battery continues to run for 3 hours, and external battery power supply is supported.
In the SRT push mode of the mobile phone, the mobile phone adopts the integration of third party software, and the SRT push mode is adopted to realize the real-time return of signals to the studio; the mobile phone plug flow uses easy plug flow software to support android and IOS; push viewing uses VLC handset versions. And the plug-flow software is directly provided with an STR server on the cloud, the signal codes of the camera of the mobile phone are directly transmitted to a studio, the studio realizes receiving through convergence conversion software, and the delay is stabilized within 3 seconds after test.
Further, the access module receives aggregate internet signal streams including RTMP, HLS, SRT, DVB-UDP, webRTC, or other internet signal streams;
The access module supports the functions of signal loss monitoring and a safety gasket, supports the broadcasting of the gasket when the network signal is lost, and automatically recovers the signal when the network is recovered;
In the access module, SRT signal flow realizes one-to-many sending and receiving through the streaming media server, and a user does not need to have a public network address; and meanwhile, localized deployment of the SRT streaming media server is also provided, so that low-delay application based on the Internet is truly realized.
Wherein, aiming at products with the delay lower than VMIX under the same network condition by SRT and RTMP, the actual measurement is between 1 and 2 seconds; the method comprises the steps of supporting file circulation broadcasting and GPU-based decoding; the file signal and the stream signal can be converted into NDI and SDI signals in real time; three conversion can be carried out to 4K signals in the conversion process, and 8K is supported at the highest; and supporting the return of the live call signals.
Further, the functions supported by the matrix router based on NDI in a full routing manner include:
the CPU, the memory and the bandwidth of the service are not occupied in the switching process, and meanwhile, the power-off direct connection of the server is realized;
All NDI signals in the local area network are displayed, and grouping display can be performed according to equipment to which the NDI signals belong (the number of paths is not limited);
setting the name of the output NDI signal and grouping the NDI signal to match different application targets such as decoder, multi-picture and playout (the number of output paths is not limited);
switching and group switching of single-path signals, and realizing one-key emergency switching aiming at one group of signals;
monitoring each path of source signals and each path of target signals through software;
And the binding of the main and the standby and the multi-picture linkage are realized, and the main and the standby switching of the NDI signal is realized.
Further, the monitoring module can set multiple picture types at will, such as 4 pictures, 6 pictures, 9 pictures, 16 pictures, 24 pictures and 36 pictures; the NDI signal, the name and the image quality of each picture can be set, the multi-picture supports the preview of the low code rate, namely, aiming at FULLNDI, the low code rate can be monitored by adopting a preview mode so as to reduce the bandwidth, and more NDI pictures can be watched at one time (the unique technology of NEWTECH); all pictures or a single picture can be opened and closed uniformly;
the monitoring module supports signal monitoring, and signal alarm is carried out when video frame loss is found;
the LIVE production module supports NDI switching station, CG editing, NDI matting and picture-in-picture packaging wiring, wherein,
The NDI switching station and CG editing features include: supporting switching of NDI, local audio and files; supporting various transition special effects; supporting multitrack audio tuning; support output of NDI; supporting CG editing; supporting dynamic CG effect; the subtitle self-adaptive HD, 4K, 8K output; the software supports deployment on demand; selecting outputs of HD, 4K and 8K according to the device performance; the method supports the low code rate and low power consumption preview of multiple paths of NDI 4K, and the original format output is that when a multi-window preview picture is watched, the NDI is low code rate, low delay and low power consumption signals, and when PVW and PGM are selected, the signal with 300Mbps source image quality is watched;
The characteristics of NDI image matting and picture-in-picture packaging connecting line include: supporting NDI signals and files; supporting one-key image matting and adjusting stored data; support output of NDI; the subtitle self-adaptive HD, 4K, 8K output; the software supports deployment on demand; selecting outputs of HD, 4K and 8K according to the device performance; picture-in-picture and multi-user switching is supported.
Furthermore, the NDI total control broadcasting system comprises a list-editing central control unit and a broadcasting service process unit, wherein,
The list editing central control unit is used for monitoring the states of all broadcasting processes, including monitoring a plurality of NDI broadcasting service processes on a plurality of servers, and reflecting whether the processes die in real time;
the editing center control unit supports the broadcasting editing of each broadcasting process, selects audio and video files and NDI signals in various main stream formats to edit, and automatically obtains the duration of the video files and the address of the NDI signals;
The list editing central control unit supports 3 modes of forward and timing inserting and forward and timing arranging;
The bill making central control unit supports the copying of the bill making according to the day, week and month;
The grouping central control unit supports grouping each broadcasting channel to realize group grouping synchronization;
The list editing central control unit supports adding emergency statistics to each broadcasting channel or a group of broadcasting channels, a user designs a subtitle form of an emergency notification, emergency characters are modified in a central control interface, and one-key up and down notification is carried out;
The broadcasting service process unit supports that when a single click reading list is opened, the serial list on the current day is read to broadcast programs;
the broadcasting service process unit supports the broadcasting of NDI for high definition or 4K according to configuration software and unified frame rate;
The broadcasting service process unit adopts a FULL NDI mode, wherein the transmission rate of the high-definition video signal is 100Mbps, and the transmission rate of the 4K signal is 300Mbps;
the broadcasting service process unit supports that when a current program is broadcasted, a next video or NDI signal of CUE can be automatically generated, and when a broadcasting time point is reached, the next program can be automatically switched with seamless frame precision;
the broadcasting service process unit supports automatic broadcasting of the gasket picture when no video or NDI signal exists;
the broadcasting service process unit supports that the last frame can be automatically broadcasted when the frame is lost, and the gasket is automatically switched when the count reaches 25 frames;
the broadcasting service process unit supports superposition of station marks according to the setting;
The broadcasting service process unit supports superposition of emergency broadcasting free captions;
the broadcasting service process unit supports the synchronous output of the hardware IO card and the NDI signal.
Further, the recording module comprises a recording central control unit and a recording service process unit, wherein,
The recording central control unit is used for monitoring the states of all broadcasting processes, including monitoring a plurality of NDI recording service processes on a plurality of servers, and reflecting whether the processes die in real time;
The recording central control unit supports the arrangement of a recording plan for each recording process;
The recording central control unit supports the copying of the plan list according to the day, week and month;
The recording central control unit supports grouping each recording channel to realize group plan single synchronization;
The recording central control unit supports remote NDI preview of the baseband signal;
the recording service process unit supports the input of an NDI/SDI signal and detects the frame loss condition of the NDI signal in real time;
The recording service process unit supports the NDI output of the default supporting baseband signal, provides a low-code-rate real-time preview based on the NDI for the central control software, and is convenient for operation and configuration;
The recording service process unit supports file recording aiming at the NDI signal and supports a song cutting function, namely if a user wants to edit immediately in the recording process, the song cutting button can be clicked, a video can be saved for a section immediately, and frames between the video recorded next and the current video are continuous;
recording service process units support recording of SD, HD and 4K;
in the recording service process unit, the 4K signal supports the color gamut of H265 bt2020, and the recording support GPU realizes multi-channel synchronous recording according to a single machine;
The recording service process unit supports signal recording according to the arranged plan;
the recording service process unit supports recording locally and synchronously migrates.
Further, the distribution module supports the input of the NDI/SDI signal and detects the frame loss condition of the NDI signal in real time;
The distribution module supports RTMP, SRT, DVB-UDP push;
The distribution module supports RTMP and SRT streaming media servers based on the Arian cloud on the Internet to realize signal distribution;
The distribution module supports RTMP and each large Internet live broadcast platform to be in butt joint;
The distribution module supports a multi-transmission function, namely, a coding process is used for simultaneously carrying out RTMP push flow on a plurality of internet platforms, so that the performance requirement of equipment is greatly reduced;
The distribution module supports converting DVB-UDP NDI signals into UDPSTPS signals of DVB standards, realizes seamless connection of the NDI signals and the cable television signal standards, and realizes synchronous broadcasting of new media and traditional media;
the distribution module supports the function of a non-NDI signal gasket, and the STANDBY heartbeat detection and the active-STANDBY switching of push flow.
Further, in the post-production module, an insert is built in Adobe premier to realize the management of the recorded materials;
the online editing system can refresh the new recording materials in real time;
the online editing system can submit and save, realize linkage with the recording server, realize the saving of the recording server, automatically refresh the material library and realize editing of the program;
The online clipping system clips and submits a packaging server based on Adobe Media Encode, so that packaging and export of an Internet format are realized;
and the online clipping system synthesizes through the selection modes, and submits a third party packaging server to realize the content generation of the fixed mode.
Further, the security module includes an NDI-based delayed play-out mode and an NDI stream maintenance one-out-of-multiple mode, wherein,
The delay broadcasting mode based on NDI supports NDI signal input and output, supports picture quality customization, supports lossless storage, supports obtaining frame loss data of video signals in real time, supports simultaneously seeing an original picture and a delayed picture, and delays the maximum time for 1 hour;
in the multiple-choice mode, the NDI stream is monitored in real time to output NDI signals, and is switched backward in sequence after receiving the lost frame for 2 seconds, for example, when two choices are selected, the frame is automatically switched to the second path after 2 seconds of the lost frame, and when more choices are selected, the frame can be switched backward in sequence.
The technical support based on NDI Router is adopted to support power-off direct connection, and the link in use is not affected under the condition of software closing;
the memory function is supported, and the last closed setting is automatically loaded by restarting.
In the invention, the data delay is within 1 second based on the intranet platform of NDI. After the scheduling and processing of the internal NDI network, the system support pushes outwards in real time, including: supporting SRT external real-time interaction; the RTMP Internet rapid push is supported, and the multi-platform synchronous broadcasting of signals is realized; the DVB-UDP is supported to provide signals for traditional broadcasting platforms such as cable televisions in real time.
The IP conversion of video signals is a revolutionary change, but in the invention, baseband signals are not taken as main streams in all studio, post-production and virtual carousel aspects, the high-image-quality and low-delay signals of NDI are transmitted, and one NDI signal can be simultaneously used for a plurality of platforms, so that the difficult problem of complicated jumper of the baseband signals in the prior art is solved.
For example, after NDI is adopted in broadcasting, some live broadcast signals are not needed to be given out through a video matrix, and any path of NDI live broadcast signals in the network can be switched at any time and any place.
For example, the NDI matrix is set in a scale, for example, 32×32, 64×64, after the IP matrix is adopted, the definition is unlimited, the switching is performed according to the signal scale in the network, and a routing mode is adopted, if the matrix is closed, the channel is established, the signal can be normally played, the signal is used for monitoring multiple pictures, and the switching of the main signal and the standby signal is realized.
In summary, the low-cost IP NDI signal transmission network based on the tera-network can be rapidly deployed and realize arbitrary signal switching and scheduling, and can be elastically stretched according to requirements.
The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical solution of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (8)
1. An all IP audio and video system applied to a financial system is based on NDI and adopts an audio and video network transmission protocol of NDI, and is characterized by comprising a transmission module, an access module, a scheduling module, a monitoring module, a LIVE making module, a broadcasting module, a security module, a recording module, a storage module, a post making module and a distribution module, wherein,
The transmission module is used for realizing real-time feedback of mobile signals and high-bandwidth signal feedback;
The access module is used for realizing the receiving convergence of the internet signal flow and converting the received signal into an NDI signal;
the scheduling module adopts a matrix router based on NDI to realize switching scheduling of signals;
the monitoring module is used for monitoring the NDI signal and giving a signal alarm when the frame loss is found;
the LIVE manufacturing module adopts an online manufacturing tool set to carry out field editing and manufacturing on the NDI signal;
the broadcasting module adopts an NDI master control broadcasting system to broadcast real-time streams and simultaneously monitors the states of all broadcasting processes;
the safety module is used for guaranteeing the broadcasting safety;
the recording module adopts a centralized recording system based on NDI to realize file recording aiming at the NDI signal;
the storage module is used for storing the NDI signals recorded by the recording module;
the post-production module adopts an online editing system based on Adobe Premiere to realize online editing of the NDI signals recorded by the recording module;
The distribution module is used for realizing the conversion of the NDI signals and pushing the converted signals to a third party platform in real time;
the functions supported by the matrix router based on NDI in a full routing mode include:
the CPU, the memory and the bandwidth of the service are not occupied in the switching process, and meanwhile, the power-off direct connection of the server is realized;
all NDI signals in the local area network are displayed, and grouping display can be performed according to equipment to which the NDI signals belong;
setting the name of the output NDI signal, and grouping the NDI signals to match different application targets;
switching and group switching of single-path signals, and realizing one-key emergency switching aiming at one group of signals;
monitoring each path of source signals and each path of target signals through software;
The binding of the main and the standby and the multi-picture linkage are realized, and the main and the standby switching of the NDI signal is realized;
the NDI total control broadcasting system comprises a list-editing central control unit and a broadcasting service process unit, wherein,
The list editing central control unit is used for monitoring the states of all broadcasting processes, including monitoring a plurality of NDI broadcasting service processes on a plurality of servers, and reflecting whether the processes die in real time;
the editing center control unit supports the broadcasting editing of each broadcasting process, selects audio and video files and NDI signals in various main stream formats to edit, and automatically obtains the duration of the video files and the address of the NDI signals;
The list editing central control unit supports three modes of forward and backward, timing inserting and timing forward arrangement;
The bill making central control unit supports the copying of the bill making according to the day, week and month;
The grouping central control unit supports grouping each broadcasting channel to realize group grouping synchronization;
The list editing central control unit supports adding emergency statistics to each broadcasting channel or a group of broadcasting channels, a user designs a subtitle form of an emergency notification, emergency characters are modified in a central control interface, and one-key up and down notification is carried out;
The broadcasting service process unit supports that when a single click reading list is opened, the serial list on the current day is read to broadcast programs;
the broadcasting service process unit supports the broadcasting of NDI for high definition or 4K according to configuration software and unified frame rate;
The broadcasting service process unit adopts a FULL NDI mode, wherein the transmission rate of the high-definition video signal is 100Mbps, and the transmission rate of the 4K signal is 300Mbps;
the broadcasting service process unit supports that when a current program is broadcasted, a next video or NDI signal of CUE can be automatically generated, and when a broadcasting time point is reached, the next program can be automatically switched with seamless frame precision;
the broadcasting service process unit supports automatic broadcasting of the gasket picture when no video or NDI signal exists;
the broadcasting service process unit supports that the last frame can be automatically broadcasted when the frame is lost, and the gasket is automatically switched when the count reaches 25 frames;
the broadcasting service process unit supports superposition of station marks according to the setting;
The broadcasting service process unit supports superposition of emergency broadcasting free captions;
the broadcasting service process unit supports the synchronous output of the hardware IO card and the NDI signal.
2. The system of claim 1, wherein the transmission module is configured to use a 5G-SRT multi-channel aggregate video transmission knapsack mode, a cell phone SRT push mode, or an Internet video platform mode, wherein,
The 5G-SRT multichannel aggregation video transmission knapsack mode provides a 5G and/or 4G link-based multi-network fusion communication channel by utilizing a multi-link intelligent aggregation technology and an SRT video transmission technology, and transmits low-delay high-image-quality 4K and/or high-definition video signals to an access module;
The SRT push mode of the mobile phone adopts the SRT push mode to realize the signal real-time transmission to the access module;
the internet video platform mode adopts an RTMP protocol to transmit internet video to the access module.
3. An all-IP audio-visual system for use in a financial system according to claim 1 wherein said access module receiving aggregate internet signal streams comprises RTMP, HLS, SRT, DVB-UDP, webRTC, or other internet signal streams;
the access module supports the functions of signal loss monitoring and a safety gasket: supporting the broadcasting of the gasket when the network signal is lost, and automatically recovering the signal when the network is recovered;
In the access module, SRT signal flow realizes one-to-many sending and receiving through the streaming media server, and a user does not need to have a public network address; and meanwhile, localized deployment of the SRT streaming media server is also provided, so that low-delay application based on the Internet is truly realized.
4. The all-IP audio/video system for a financial system according to claim 1, wherein the monitoring module can set multiple picture types at will, can set NDI signal, name and image quality of each picture, and can uniformly open and close all pictures or a single picture;
the monitoring module supports signal monitoring, and signal alarm is carried out when video frame loss is found;
the LIVE making module supports NDI switching station, NDI matting, CG editing and picture-in-picture packaging connection.
5. The all-IP audio-video system for a financial system according to claim 1, wherein the listing module comprises a listing central control unit and a listing service process unit, wherein,
The recording central control unit is used for monitoring the states of all broadcasting processes, including monitoring a plurality of NDI recording service processes on a plurality of servers, and reflecting whether the processes die in real time;
The recording central control unit supports the arrangement of a recording plan for each recording process;
The recording central control unit supports the copying of the plan list according to the day, week and month;
The recording central control unit supports grouping each recording channel to realize group plan single synchronization;
The recording central control unit supports remote NDI preview of the baseband signal;
the recording service process unit supports the input of an NDI/SDI signal and detects the frame loss condition of the NDI signal in real time;
The recording service process unit supports the NDI output of the default supporting baseband signal, provides a low-code-rate real-time preview based on the NDI for the central control software, and is convenient for operation and configuration;
The recording service process unit supports file recording aiming at the NDI signal and supports a song cutting function, namely if a user wants to edit immediately in the recording process, the song cutting button can be clicked, a video can be saved for a section immediately, and frames between the video recorded next and the current video are continuous;
recording service process units support recording of SD, HD and 4K;
in the recording service process unit, the 4K signal supports the color gamut of H265 bt2020, and the recording support GPU realizes multi-channel synchronous recording according to a single machine;
The recording service process unit supports signal recording according to the arranged plan;
the recording service process unit supports recording locally and synchronously migrates.
6. The all-IP audio/video system for use in a financial system according to claim 1, wherein the distribution module supports input of NDI/SDI signals and detects frame loss of NDI signals in real time;
The distribution module supports RTMP, SRT, DVB-UDP push;
The distribution module supports RTMP and SRT streaming media servers based on the Arian cloud on the Internet to realize signal distribution;
The distribution module supports RTMP and each large Internet live broadcast platform to be in butt joint;
the distribution module supports a function of editing multiple hairs;
The distribution module supports converting DVB-UDP NDI signals into UDPSTPS signals of DVB standards, realizes seamless connection of the NDI signals and the cable television signal standards, and realizes synchronous broadcasting of new media and traditional media;
the distribution module supports the function of a non-NDI signal gasket, and the STANDBY heartbeat detection and the active-STANDBY switching of push flow.
7. The all-IP audio/video system for a financial system according to claim 1, wherein a plug-in is built in Adobe premier in the post-production module to realize management of recorded materials;
the online editing system can refresh the new recording materials in real time;
the online editing system can submit and save, realize linkage with the recording server, realize the saving of the recording server, automatically refresh the material library and realize editing of the program;
The online clipping system clips and submits a packaging server based on Adobe Media Encode, so that packaging and export of an Internet format are realized;
and the online clipping system synthesizes through the selection modes, and submits a third party packaging server to realize the content generation of the fixed mode.
8. The system of claim 1, wherein the security module comprises an NDI-based delayed play mode and an NDI stream maintenance one-out-of-multiple mode, wherein,
The delay broadcasting mode based on NDI supports NDI signal input and output, supports picture quality customization, supports lossless storage, supports obtaining frame loss data of video signals in real time, and supports simultaneously seeing an original picture and a delayed picture with maximum delay time of 1 hour;
In the mode of maintaining the NDI flow in multiple options, monitoring and outputting an NDI signal in real time, and switching backwards in sequence after finding out that the frame is lost for 2 seconds; the technical support based on NDI Router is adopted to support power-off direct connection, and the link in use is not affected under the condition of software closing; the memory function is supported, and the last closed setting is automatically loaded by restarting.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783873A (en) * | 2009-01-19 | 2010-07-21 | 北京视典无限传媒技术有限公司 | Digital multimedia information transmission platform |
| CN104424726A (en) * | 2013-08-25 | 2015-03-18 | 上海莞东拿信息科技有限公司 | Novel radio frequency identification technology-based tourism area unified fee collection one-card POS machine |
| CN111988536A (en) * | 2020-09-04 | 2020-11-24 | 南京广播电视集团有限责任公司 | Full-media bidirectional broadcast-merging platform |
| CN212435771U (en) * | 2020-07-24 | 2021-01-29 | 天津市盛世飞扬科技有限公司 | Wireless portable integrated studio system |
| CN113905250A (en) * | 2021-10-19 | 2022-01-07 | 鲤想视界(杭州)信息技术有限公司 | Network live broadcast system |
| CN114630051A (en) * | 2022-03-28 | 2022-06-14 | 阿里巴巴（中国）有限公司 | Video processing method and system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021207204A1 (en) * | 2020-04-07 | 2021-10-14 | Rockstar Music, Inc. | Media capture and distribution |
-
2022
- 2022-08-05 CN CN202210944280.6A patent/CN115314478B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783873A (en) * | 2009-01-19 | 2010-07-21 | 北京视典无限传媒技术有限公司 | Digital multimedia information transmission platform |
| CN104424726A (en) * | 2013-08-25 | 2015-03-18 | 上海莞东拿信息科技有限公司 | Novel radio frequency identification technology-based tourism area unified fee collection one-card POS machine |
| CN212435771U (en) * | 2020-07-24 | 2021-01-29 | 天津市盛世飞扬科技有限公司 | Wireless portable integrated studio system |
| CN111988536A (en) * | 2020-09-04 | 2020-11-24 | 南京广播电视集团有限责任公司 | Full-media bidirectional broadcast-merging platform |
| CN113905250A (en) * | 2021-10-19 | 2022-01-07 | 鲤想视界(杭州)信息技术有限公司 | Network live broadcast system |
| CN114630051A (en) * | 2022-03-28 | 2022-06-14 | 阿里巴巴（中国）有限公司 | Video processing method and system |
Non-Patent Citations (2)
| Title |
|---|
| " NDI技术在视频移动报道中的应用研究";王宏辉;《 中国传媒科技》;20210915;全文 * |
| "On and Practical Art of State Definitions for Markov Decision Process Construction";William T.Scherer;《IEEE access》;20181231;全文 * |
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