CN104618696B - The information processing method and system of video optical multiplexer - Google Patents
The information processing method and system of video optical multiplexer Download PDFInfo
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Abstract
The invention discloses a kind of information processing method of video optical multiplexer and system, in the above-mentioned methods, obtains state information data packet, wherein, the information carried in state information data packet includes：The identification information of the current status information of each video optical multiplexer for being connected in turn in multiple video optical multiplexers in same fiber link and each video optical multiplexer；According to the current status information of each video optical multiplexer got and the identification information of each video optical multiplexer, the part or all of video optical multiplexer in multiple video optical multiplexers is asked to send audio and/or video data bag set.According to technical scheme provided by the invention, the small effect of implementation simple and stable, hardware spending is reached.
Description
Technical field
The present invention relates to video light transmission field, a kind of information processing method in particular to video optical multiplexer and
System.
Background technology
At present, in remote fiber transmitting procedure, transmission of the optical cable on optical signal influences smaller, the biography of fibre-optic transmission system (FOTS)
Transmission quality depends primarily on the quality of optical transmitter and receiver, because optical transmitter and receiver is responsible for electrical/optical and connect with optical electrical conversion and light transmitting and light
Receive.Terminal device of the optical transmitter and receiver as transmission optical signal, is generally supported the use in pairs, can be divided into photoreceiver and light is sent
Machine.Optical transmitter realizes that electrical/optical is changed for electric signal to be transformed into optical signal, and optical input fiber is transmitted.
Photoreceiver realizes that optical electrical is changed for the optical signal received from optical fiber to be reduced into electric signal.As can be seen here, its performance is excellent
It is bad to directly affect whole system.
Video optical multiplexer mainly gets up in the development of China along with monitoring development, and the function of video optical multiplexer is
Arrive all the way the analog video signal of multichannel by various code conversions into optical signal and by fiber medium come the equipment transmitted.Such as
The present, video optical multiplexer can be largely classified into analog video optical transmitter and receiver and digital video fiber optic transmitter.
Analog video optical transmitter and receiver employs pulse frequency modulated（PFM）Technology real-time Transmission picture signal.Transmitting terminal is first
After carrying out PFM modulation to analog video signal, then carry out electrical/optical conversion；And after optical signal transmission to receiving terminal, first carry out
Optical electrical is changed, and is then carried out PFM demodulation again, is recovered vision signal.As a result of PFM modulation techniques, its transmission range energy
It is even farther to reach 50Km.By using wavelength-division multiplex technique, image and data-signal can also be realized on an optical fiber
Transmitted in both directions, meet the actual demand of supervision control engineering.Certainly, analog video optical transmitter and receiver while possessing above-mentioned advantage there is also
Some defects, such as：Scheduling and planning is more difficult；Simple optical fiber realizes that multiway images transmission is more difficult, performance can under
Drop；Poor anti jamming capability, it is larger by such environmental effects, temperature drift be present；Less stable, with usage time increase or
The change of environmental characteristics, the performance of optical transmitter and receiver can also be changed therewith, and some inconvenience are brought to engineering use.
Because digital technology is respectively provided with clear superiority compared with traditional analogue technique in all many-sides, therefore, as number
Word technology is the same in many fields substitution analogue technique, and the digitlization of optical transmitter and receiver is increasingly becoming a kind of inexorable trend.Numeral regards
Frequency optical transmitter and receiver is primarily present two kinds of technical approach：One of which is MPEG II compression of images Digital Optical Terminals, and another kind is complete
Digital non-compression video optical transmitter and receiver.
Compression of images Digital Optical Terminal generally use MPEG II Image Compressions, live image can be compressed into N by it
× 2Mbps data flow is by standard telecommunications communications interface transmission or is directly transmitted by optical fiber.As a result of figure
As compress technique, it can be made to substantially reduce signal transmission bandwidth.
Digital uncompressed video optical transmitter-receiver then uses digital no compress technique, therefore, it is possible to support any high-resolution
Rate motion, rest image undistorted transmission, it is same so as to overcome conventional analog fm, phase modulation, amplitude modulation optical transmitter and receiver multiple signals
When intermodulation distortion is serious when transmitting, easily influenceed by environmental disturbances, transmission quality is inferior, long-term working stability is poor etc. lacks
Fall into, and the parallel transmission of the signal such as two-way audio frequency bidirectional, data double-way, switching value, Ethernet, phone can also be supported, it is existing
Field easy-to-connect, plug and play.
However, at present, in correlation technique for the video optical multiplexer of above two type, analog video optical transmitter and receiver without
Method access video synthesis platform, and single digital video fiber optic transmitter（Such as：Standard-definition digital video optical transmitter and receiver, it will for one kind
All the way or multichannel PAL/NTSC digital video signals and other data signals encoded after be converted into optical signal and pass through
Fiber medium is come the equipment transmitted）Although having access to video synthesis platform, having for single fiber can not be effectively utilized
Bandwidth is imitated, species is not easy to extend more, its applicability is poor.
The content of the invention
The invention provides a kind of information processing method of video optical multiplexer and system, at least to solve to lack in correlation technique
A kind of few multiple video optical multiplexers in same fiber link access asking for the technical scheme of video synthesis platform simultaneously
Topic.
A kind of according to an aspect of the invention, there is provided information processing method of video optical multiplexer.
Included according to the information processing method of the video optical multiplexer of the present invention：State information data packet is obtained, wherein, state
The information carried in information packet includes：It is connected in turn each in multiple video optical multiplexers in same fiber link
The identification information of the current status information of video optical multiplexer and each video optical multiplexer；According to each video light end got
The identification information of the current status information of machine and each video optical multiplexer, ask part or all of in multiple video optical multiplexers
Video optical multiplexer sends audio and/or video data bag set.
Preferably, believe according to the mark of the current status information of each video optical multiplexer and each video optical multiplexer
After breath, requested part or all videos optical transmitter and receiver send audio and/or video data bag set, in addition to：Reception comes from
The audio of part or all of video optical multiplexer and/or video data bag set；According in audio and/or video data bag set
Packets of audio data subset is established with part or all of video optical multiplexer and conversed, and/or, to audio and/or video data bag set
In video data bag subset carry out display output.
Preferably, believe according to the mark of the current status information of each video optical multiplexer and each video optical multiplexer
After breath, requested part or all videos optical transmitter and receiver send audio and/or video data bag set, in addition to：Regarded according to multiple
The order that frequency optical transmitter and receiver is sequentially connected in same fiber link inversely sends reverse transmission data bag, to multiple video light ends
One or more of machine video optical multiplexer is configured or communicated.
Preferably, the order being sequentially connected according to multiple video optical multiplexers in same fiber link inversely sends reverse
Transmission packet, one or more video optical multiplexers are configured or communicated including at least one of：When reverse transfer number
It is reverse to send Reverse Turning Control packet when according to bag be Reverse Turning Control packet, in one or more video optical multiplexers with each
One or more video channels are turned on or off corresponding to video optical multiplexer；When reverse transmission data bag is reversely upgrading
During packet, reverse upgrading data packet is inversely sent, inside each video optical multiplexer in one or more video optical multiplexers
Application program upgraded；When reverse transmission data bag is reverse serial data bag, reverse serial data bag is inversely sent,
Telecommunication is carried out with each video optical multiplexer in one or more video optical multiplexers；When reverse transmission data bag is reversely multiple
It is reverse to send reversing reset packet during the packet of position, each video optical multiplexer in one or more video optical multiplexers is entered
Row remote reset.
Preferably, after state information data packet is obtained, in addition to：State information data packet is parsed, obtained
The order of connection of each current status information of video optical multiplexer and multiple video optical multiplexers, wherein, each video optical multiplexer
Fill order of the current status information in state information data packet and state information data packet multiple video optical multiplexers it
Between the order transmitted it is identical.
Preferably, each video optical multiplexer in multiple video optical multiplexers is via the first optical fiber interface and in same optical fiber
Adjacent previous video optical transmitter and receiver is connected and/or via the second optical fiber interface and the phase in same fiber link on link
Adjacent the latter video optical multiplexer is connected.
According to another aspect of the present invention, there is provided a kind of information processing system of video optical multiplexer.
Included according to the information processing system of the video optical multiplexer of the present invention：Acquisition module, for obtaining status information number
According to bag, wherein, the information carried in state information data packet includes：The multiple videos being connected in turn in same fiber link
The identification information of the current status information of each video optical multiplexer in optical transmitter and receiver and each video optical multiplexer；Request module,
For the requests for identification information according to the current status information of each video optical multiplexer got and each video optical multiplexer
Part or all of video optical multiplexer in multiple video optical multiplexers sends audio and/or video data bag set.
Preferably, said system also includes：Receiving module, the sound of part or all of video optical multiplexer is come from for receiving
Frequency and/or video data bag set；Processing module, for the packets of audio data in audio and/or video data bag set
Subset is established with part or all of video optical multiplexer and conversed, and/or, to the video counts in audio and/or video data bag set
Display output is carried out according to steamed stuffed bun collection.
Preferably, said system also includes：Sending module, for according to multiple video optical multiplexers in same fiber link
On the order that is sequentially connected inversely send reverse transmission data bag, to one or more of multiple video optical multiplexers video light end
Machine is configured or communicated.
Preferably, sending module includes at least one of：First transmitting element, for being anti-in reverse transmission data bag
It is reverse to send Reverse Turning Control packet during to control data bag, in one or more video optical multiplexers with each video light end
One or more video channels are turned on or off corresponding to machine；Second transmitting element, in reverse transmission data bag
For reverse upgrading data packet when, reverse upgrading data packet is inversely sent, to each video in one or more video optical multiplexers
Application program inside optical transmitter and receiver is upgraded；3rd transmitting element, for being reverse serial data in reverse transmission data bag
Bao Shi, reverse serial data bag is inversely sent, carried out with each video optical multiplexer in one or more video optical multiplexers long-range
Communication；4th transmitting element, for when reverse transmission data bag is reversing reset packet, inversely sending reversing reset data
Bag, remote reset is carried out to each video optical multiplexer in one or more video optical multiplexers.
By the embodiment of the present invention, using obtaining state information data packet, wherein, the letter carried in state information data packet
Breath includes：The current state of each video optical multiplexer for being connected in turn in multiple video optical multiplexers in same fiber link
The identification information of information and each video optical multiplexer；According to the current status information of each video optical multiplexer got and
Part or all of video optical multiplexer in the multiple video optical multiplexers of requests for identification information of each video optical multiplexer send audio and/
Or video data bag set, i.e., known by a state information data packet be connected in turn it is multiple in same fiber link
The current status information of each video optical multiplexer in video optical multiplexer, then it can be asked wherein according to state information data packet
Some or all of video optical multiplexer send audio and/or video data, then complete information exchange, thus solve correlation
Lack a kind of multiple video optical multiplexers in same fiber link in technology while access the technology of video synthesis platform
The problem of scheme, and then implementation simple and stable, hardware spending small effect.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of the information processing method of video optical multiplexer according to embodiments of the present invention；
Fig. 2 is the composition schematic diagram of audio or video packet according to embodiments of the present invention；
Fig. 3 is the composition schematic diagram of reverse transmission data bag according to the preferred embodiment of the invention；
Fig. 4 is the composition schematic diagram of state information data packet according to the preferred embodiment of the invention；
Fig. 5 is the identification information of each video optical multiplexer according to the preferred embodiment of the invention in state information data packet
The schematic diagram that puts in order；
Fig. 6 is the schematic diagram that the status information form of each video optical multiplexer according to the preferred embodiment of the invention defines；
Fig. 7 is the schematic diagram of multiple video optical multiplexer access video synthesis platforms according to the preferred embodiment of the invention；
Fig. 8 is the internal structure schematic diagram of the single video optical multiplexer according to the preferred embodiment of the invention based on Fig. 7；
Fig. 9 is the schematic diagram carried out data transmission between the adjacent node according to the preferred embodiment of the invention based on Fig. 7；
Figure 10 is the structured flowchart of the information processing system of video optical multiplexer according to embodiments of the present invention；
Figure 11 is the structured flowchart of the information processing system of video optical multiplexer according to the preferred embodiment of the invention.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
In the following description, except as otherwise noted, otherwise by with reference to the action and behaviour performed by one or more computers
The symbol of work is represented to describe present embodiments.Wherein, computer includes personal computer, server, mobile terminal
Etc. various products, central processing unit has been used（CPU）, single-chip microcomputer, digital signal processor（DSP）Deng setting with process chip
It is standby to be properly termed as computer.As such, it will be understood that this kind of action and operation that sometimes referred to as computer performs include calculating
The processing unit of machine is to representing the manipulation of the electric signal of data with structured form.This manipulation transforms data or in computer
Accumulator system in position on safeguard it, this reconfigures or changed in a manner of those skilled in the art understands and counts
The operation of calculation machine.The data structure for safeguarding data is the physical bit of the memory with particular community defined in the form of data
Put.However, although of the invention described in above-mentioned context, but its being not intended to limit property, such as those skilled in the art
What member was understood, action described below and each side of operation can also be realized with hardware.
Accompanying drawing is turned to, wherein identical reference number refers to identical element, and the principle of the application is illustrated as in a conjunction
Realized in suitable computing environment.Describe based on described embodiments herein, and be not considered as on herein not below
The alternative embodiment that is expressly recited and limit the application.
Following examples may apply in computer, such as：It is applied to personal computer（PC）In, naturally it is also possible to should
Use in the current mobile terminal employed in intelligent operating system, and be not limited to this.For computer or mobile terminal
Operating system do not have particular/special requirement, if contact can be detected, determine whether the contact is consistent with pre-defined rule, and
Corresponding function is realized according to the attribute of the contact.
Fig. 1 is the flow chart of the information processing method of video optical multiplexer according to embodiments of the present invention.As shown in figure 1, should
Method can include following processing step：
Step S102：State information data packet is obtained, wherein, the information carried in state information data packet includes：Successively
The current status information of each video optical multiplexer for being connected in multiple video optical multiplexers in same fiber link and every
The identification information of individual video optical multiplexer；
Step S104：According to the current status information of each video optical multiplexer got and each video optical multiplexer
Identification information, the part or all of video optical multiplexer in multiple video optical multiplexers is asked to send audio and/or video data bag collection
Close.
In correlation technique, lack a kind of multiple video optical multiplexers in the same fiber link while to access video comprehensive
Close the technical scheme of platform.Using method as shown in Figure 1, state information data packet is obtained, wherein, in state information data packet
The information of carrying includes：The each video optical multiplexer being connected in turn in multiple video optical multiplexers in same fiber link is worked as
Preceding status information and the identification information of each video optical multiplexer；According to the current state of each video optical multiplexer got
Part or all of video optical multiplexer hair in information and the multiple video optical multiplexers of the requests for identification information of each video optical multiplexer
Audio and/or video data bag set are sent, i.e., is known by a state information data packet and is connected to same optical fiber chain in turn
The current status information of each video optical multiplexer in multiple video optical multiplexers on road, then can be according to status information data
Bag request some or all of video optical multiplexer therein sends audio and/or video data, then completes information exchange, thus
Solve and lack a kind of multiple video optical multiplexers in same fiber link in correlation technique while access video synthesis
The problem of technical scheme of platform, and then implementation simple and stable, hardware spending small effect.
During being preferable to carry out, the information processing method of above-mentioned video optical multiplexer can apply to video synthesis platform.
Video synthesis platform is a to integrate image procossing, network function, log management, user and rights management, plant maintenance
Carrier class video synthesis processing platform.Each video light end in multiple video optical multiplexers in same fiber link
Machine can be at interval of preset duration（Such as：5ms, its interval duration can modify according to actual conditions）To adjacent thereto
Closer to video synthesis platform the latter video optical multiplexer send one renewal after state information data packet.In same
One and only one state information data packet in fiber link.Each video optical multiplexer can incite somebody to action when sending state information data packet
Status information caused by itself is inserted into by the previous video of the remote video synthesis platform adjacent with current video optical transmitter and receiver
In the state information data packet that optical transmitter and receiver transmits, so as to form a new state information data packet, and by current
Video optical multiplexer send above-mentioned new state information data packet to the latter video optical multiplexer.
Preferably, in step S104, according to the current status information of each video optical multiplexer and each video optical multiplexer
Identification information, after requested part or all videos optical transmitter and receiver send audio and/or video data bag set, can also include
Following steps：
Step S1：Receive audio and/or the video data bag set for coming from part or all of video optical multiplexer；
Step S2：Packets of audio data subset and part or all of video in audio and/or video data bag set
Optical transmitter and receiver establishes call, and/or, display output is carried out to the video data bag subset in audio and/or video data bag set.
In a preferred embodiment, in same fiber link, 12 video optical multiplexers can be at most supported while accessed,
Moreover, video optical multiplexer can perform the operation such as insertion, removal in the optional position in fiber link.Each video optical multiplexer
It is at best able to support 12 road videos, the access of 12 tunnel audios and the transmission of the signal of 1 tunnel 485.
The audio and/or the source of video data bag that each video optical multiplexer is transmitted generally exist following two：
Source one, in this video optical multiplexer audio and/or vision signal are accessed by audio and/or vision signal conversion core
The audio and/or video signal data bag that piece is made up of this video optical multiplexer；
Source two, this video optical multiplexer receive by the remote video synthesis platform adjacent with this video optical multiplexer before
The audio and/or video data bag that one video optical multiplexer is sent.
It should be noted that each video optical multiplexer can adjust the audio in above two source and/or video data bag
Spend and compound be transmitted from this video optical multiplexer to the latter video optical multiplexer adjacent thereto closer to video synthesis platform.
Fig. 2 is the composition schematic diagram of audio or video packet according to embodiments of the present invention.As shown in Fig. 2 video counts
It is according to the composition of bag：FAFA+SIZE+DATA+CRC；And the composition of packets of audio data is：FBFB+SIZE+DATA+CRC.Both
Difference essentially consist in that the identification information that it is used is different, and identification information used in video data bag is FAFA, and sound
Identification information used in frequency packet is FBFB.Video synthesis platform can according to the packets of audio data that receives with one or
Multiple video optical multiplexers carry out intercommunication, and the video data bag received can also be carried out to individually display or tiled display.
Preferably, in step S104, according to the current status information of each video optical multiplexer and each video optical multiplexer
Identification information, after requested part or all videos optical transmitter and receiver send audio and/or video data bag set, can also include
Operate below：
Step S3：The order being sequentially connected according to multiple video optical multiplexers in same fiber link inversely sends reverse
Transmission packet, one or more of multiple video optical multiplexers video optical multiplexer is configured or communicated.
In a preferred embodiment, video synthesis platform can be by reverse transmission data bag to any one in fiber link
Individual or multiple video optical multiplexers carry out the operations such as video preview, upgrading, reset, 485 communications.Reverse transmission data bag can include
But it is not limited at least one of：Reverse Turning Control packet, reverse upgrading data packet, reversing reset packet, reverse serial ports number
According to bag.Company of the reverse transmission data bag by video synthesis platform according to each video optical multiplexer for accessing the video synthesis platform
Order is connect inversely to send to some or all of video optical multiplexer.The identification information carried in reverse transmission data bag is that video is comprehensive
Close what platform was got from the state information data packet received.No matter which kind of reverse transmission data bag is both needed to regard according to access
The connection order of each video optical multiplexer of frequency comprehensive platform inversely transmits successively.Whenever a video optical multiplexer receives one
During reverse transmission data bag, no matter whether the reverse transmission data bag is to send to this video optical multiplexer, be required for continuing into
The reverse transmission of row.
Preferably, in step s3, the order being sequentially connected according to multiple video optical multiplexers in same fiber link
It is reverse to send reverse transmission data bag, one or more video optical multiplexers are configured or communicated can include but is not limited to
It is at least one lower：
Step S31：When reverse transmission data bag is Reverse Turning Control packet, reverse transmission Reverse Turning Control packet is right
One or more video channels corresponding with each video optical multiplexer are opened or closed in one or more video optical multiplexers
Close；
Step S32：When reverse transmission data bag is reverse upgrading data packet, reverse upgrading data packet is inversely sent, it is right
The application program inside each video optical multiplexer in one or more video optical multiplexers is upgraded；
Step S33：When reverse transmission data bag is reverse serial data bag, reverse serial data bag is inversely sent, with
Each video optical multiplexer in one or more video optical multiplexers carries out telecommunication；
Step S34：When reverse transmission data bag is reversing reset packet, reverse transmission reversing reset packet is right
Each video optical multiplexer in one or more video optical multiplexers carries out remote reset.
In a preferred embodiment, Fig. 3 is the composition schematic diagram of reverse transmission data bag according to the preferred embodiment of the invention.
As shown in figure 3, the composition of reverse transmission data bag is：FCFC+ANC1+ANC2+ID+DATA+CRC.
ANC1：Baud_num represents the serial port baud rate when reverse transfer bag is reverse serial ports bag, and Cmd_type is used for
Distinguish the type of reverse transmission data bag（It can include：Reverse Turning Control packet, reverse upgrading data packet, reversing reset data
Bag, reverse serial data bag）, the size of Size expression reverse transmission data bags；
ANC2：Pkt_num represents that the upgrading data packet when reverse transmission data bag is reverse upgrading data packet counts,
Cmd_size represents the length of valid data in data field, can be calculated by byte；
ID：The ID number of destination node to be configured, it can be got from state information data packet；
Data：The serial data when reverse transmission data bag is reverse serial data bag is represented, or, represent when reverse
Upgrading data when transmission packet is reverse upgrading data packet, or, represent when reverse transmission data bag is Reverse Turning Control number
According to the binding configuration relation of configuration video data during bag；
It should be noted that the binding configuration relation of above-mentioned configuration video data refers to any one section in fiber link
Any video configuration all the way in point arrives the operation of one of display preview interface of video synthesis platform, otherwise is referred to as configuration
The solution binding configuration relation of video data.
Video synthesis platform preview or can close any one video light end by way of Reverse Turning Control packet
On machine it is any all the way or multi-channel video signal；Video synthesis platform can be by way of reverse upgrading data packet to any
The internal processes of one video optical multiplexer carry out remote upgrade；Video synthesis platform can be by way of reverse serial data bag
Long-range 485 communication is carried out to any one video optical multiplexer；Video synthesis platform can be by way of reversing reset packet
Remote reset is carried out to any one video optical multiplexer.
Preferably, in step S102, after obtaining state information data packet, can also comprise the following steps：
Step S4：State information data packet is parsed, obtain the current status information of each video optical multiplexer and
The order of connection of multiple video optical multiplexers, wherein, the current status information of each video optical multiplexer is in state information data packet
Fill order it is identical with the order that state information data packet is transmitted between multiple video optical multiplexers.
In a preferred embodiment, Fig. 4 is the composition schematic diagram of state information data packet according to the preferred embodiment of the invention.
As shown in figure 4, the composition of state information data packet is：FEFE+SIZE+DATA+CRC.Include each video light end in DATA
The status information of machine.Fig. 5 is the identification information of each video optical multiplexer according to the preferred embodiment of the invention in status information number
According to the schematic diagram that puts in order in bag.As shown in figure 5, each video optical multiplexer comes from adjacent far-end video light receiving
, can be by the status information of this video optical multiplexer after the state information data packet of terminal（That is the info data of this grade）Filling is extremely
The 20btyes of the foremost in info information section.Cause each video light by the order of info1-info12 identification informations
Terminal and video synthesis platform are known every in each video optical multiplexer of occupied state information in warp-wise state information data packet
The order of connection of the status information of individual video optical multiplexer and these above-mentioned video optical multiplexers.
Fig. 6 is the schematic diagram that the status information form of each video optical multiplexer according to the preferred embodiment of the invention defines.
As shown in fig. 6, each info length is 20 bytes, its form is as follows：Each info includes the video optical multiplexer corresponding to it
Recognizable sequence number（That is ID number）, the port number of equipment, headend equipment type, device type software version number, upgrading whether
Success, heartbeat, video access situation, access video format, CRC statistical conditions, binding relationship confirm, configuration whether mistake, light
The information such as the node device number in fine connection status, link.
ID is the ID number of this video optical multiplexer；Each video optical multiplexer is provided with unique ID number, and the ID number concerns often
The audio of one video optical multiplexer and/or the associative operation of vision signal, also relate to video synthesis platform and each are regarded
The associative operation of frequency optical transmitter and receiver.Video optical multiplexer on link can generally obtain above-mentioned ID number in the following ways：
Mode one, set by toggle switch（Different dial can be set for each video optical multiplexer in advance in a pre-installation
Code）；
Mode two, by from can provide above-mentioned sequence number external chip obtain, such as：In FLASH chip in advance
Burning is the ID number of each video optical multiplexer distribution.
Additional information（ANC）At least one of can be included but is not limited to：This grade of headend equipment port number, front end are set
Whether standby type, device type software version number, upgrading succeed；
Status information 1（state1）At least one of can be included but is not limited to：Heartbeat, video access situation, access
Video format；
Status information 2（state2）At least one of can be included but is not limited to：CRC statistical conditions, binding relationship are true
Recognize, configure whether mistake, the node device number on optical fiber connection status, link.
Preferably, each video optical multiplexer in above-mentioned multiple video optical multiplexers is via the first optical fiber interface and in same
Adjacent previous video optical transmitter and receiver is connected and/or via the second optical fiber interface and in same fiber link in fiber link
Upper adjacent the latter video optical multiplexer is connected.
In a preferred embodiment, each video optical multiplexer is provided with two optical fiber interfaces, the number transmitted in fiber link
According to being transmitted in the form of packet, it can distinguish video, audio, serial ports by different type of data packet
485th, the data such as status information of each video optical multiplexer on link, so as to realize between each video optical multiplexer, video light
Data interaction between terminal and video synthesis platform.
The above-mentioned process that is preferable to carry out is made further to retouch below in conjunction with Fig. 7 to the preferred embodiment shown in Fig. 9
State.
Fig. 7 is the schematic diagram of multiple video optical multiplexer access video synthesis platforms according to the preferred embodiment of the invention.Such as
Shown in Fig. 7, node refer to can with incoming fiber optic link and its possess the video optical multiplexer of unique recognizable sequence number.It is in view of current
Conventional 2.5G fiber bandwidths limitation, the preferred embodiment of the present invention can at most may have 12 tunnels in a fiber link
PAL/NTSC digital video signals, i.e., 12 nodes are can have up in a fiber link.It will be flowed to from video optical multiplexer
The audio of video synthesis platform and/or the direction setting of vision signal are uplink direction, and will be from video synthesis platform flow
The direction setting of audio and/or vision signal to video optical multiplexer is downlink direction.Close to the section of video synthesis platform
Point is referred to as near-end node, and the node away from video synthesis platform is referred to as distant-end node.For every first nodes
Speech, the previous stage node that audio and/or vision signal are sent to this grade of node is referred to as downstream site, and receives and come from this
The level audio of node and/or the rear stage node of vision signal are referred to as superior node.
It should be noted that the fiber bandwidth of increase optical transport can increase the way of transmission and the node of access
Number.
Fig. 8 is the internal structure schematic diagram of the single video optical multiplexer according to the preferred embodiment of the invention based on Fig. 7.Such as
Shown in Fig. 8, field programmable gate array（Field Programmable Gate Array, referred to as FPGA）It is that one kind is based on
SRAM（SRAM）The programming device of technique, its configurator can not be preserved, it is necessary to FPGA cores when upper electric
Piece is configured.DNA refers to the unique device identifier inside Xilinx fpga chips（Unique Device
Identifier）.Video optical multiplexer can use a piece of fpga chip as primary processor, for accessing video synthesis platform,
Function defined in node is completed, wherein it is possible to include but is not limited to：The configuration of Video Quality Metric chip, the read-write of DDR internal memories, 2
Transmitting-receiving control, the generation of various information bag and the processing of individual optical fiber interface, 485 signal transactings, FLASH program are configured and risen
Level.The cascade of node can be based on FPGA two optical fiber interfaces interconnection complete, unique ID sequences that whole system is provided by FPGA
Row number realizes the exclusiveness between each node in link.
In the preferred embodiment, the DNA for being used to encrypt of Xilinx FPGA inside solidifications can be utilized to be used as video
The ID number of optical transmitter and receiver, the DNA sequence dna number have non-volatile, unalterable feature, and the characteristics of had been cured when dispatching from the factory.
Xilinx is that this DNA sequence dna number has reserved the interface read, can obtain above-mentioned DNA by calling FPGA primitive
Value.It is 1 and 0 that the bit wide of the DNA values 57, its highest bit56 and bit55, which fix value, and the value of remaining 55 data is used
In differentiation chip serial number., in a preferred embodiment of the invention, can be by 57 for the ease of the processing of fpga chip
DNA values extend to 64（Its high position mends 0）It is used as the ID number of video optical multiplexer.In this way, the acquisition modes of ID number are not only steady
It is fixed reliable, but also the expense of hardware can be effectively reduced.
Fig. 9 is the schematic diagram carried out data transmission between the adjacent node according to the preferred embodiment of the invention based on Fig. 7.
As shown in figure 9, each video optical multiplexer can be at interval of preset duration（Such as：5ms, its interval duration can be according to reality
Situation is modified）Superior node sends the state information data packet after a renewal.Have in one fiber link and only have
One state information data packet.Each video optical multiplexer can be by this plate caused by this grade of node when sending state information data packet
Status information is inserted into the state information data packet transmitted by downstream site optical port 0 that this grade of node receives in optical port 1
In, so as to form a new state information data packet, and from this grade video optical multiplexer optical port 0 to positioned at uplink
The superior node in road direction is sent.
If the optical port 1 of some video optical multiplexer is in not-connected status, then it can be assumed that the node is the end of distal end
Level node, the node will produce an only status information comprising own node status information at interval of preset duration and wrap biography
To its superior node（The status information bag processing of the penult of distal end）.
In above preferred embodiment, between each video optical multiplexer and video optical multiplexer and video synthesis platform it
Between data interaction can rely on the transmission of state information data packet and reverse transmission data bag to realize, wherein, uplink optical fibers
Link realized by way of audio and/or video data bag, state information data packet video optical multiplexer and video optical multiplexer it
Between and data between video optical multiplexer and video synthesis platform upload, and downlink optical fiber link can be by video synthesis platform
The each video optical multiplexer being issued in a manner of the control information packet comprising node ID sequence number in fiber link（Example
Such as：Upgrading, UART, the operation such as video is bound, video is unbinded, restarts）.
Figure 10 is the structured flowchart of the information processing system of video optical multiplexer according to embodiments of the present invention.Such as Figure 10 institutes
Show, the information processing system of the video optical multiplexer can include：Acquisition module 10, for obtaining state information data packet, wherein,
The information carried in state information data packet includes：It is connected in turn in multiple video optical multiplexers in same fiber link
The identification information of each current status information of video optical multiplexer and each video optical multiplexer；Request module 20, for basis
The multiple videos of requests for identification information of each video optical multiplexer for getting current status information and each video optical multiplexer
Part or all of video optical multiplexer in optical transmitter and receiver sends audio and/or video data bag set.
Using system as shown in Figure 10, solve lack in correlation technique it is a kind of more in same fiber link
The problem of individual video optical multiplexer accesses the technical scheme of video synthesis platform simultaneously, and then implementation simple and stable,
The small effect of hardware spending.
Preferably, as shown in figure 11, said system can also include：Receiving module 30, for receive come from part or
The audio of all videos optical transmitter and receiver and/or video data bag set；Processing module 40, for according to audio and/or video data
Packets of audio data subset in bag set is established with part or all of video optical multiplexer to be conversed, and/or, to audio and/or video
Video data bag subset in packet set carries out display output.
Preferably, as shown in figure 11, said system can also include：Sending module 50, for according to multiple video light ends
The order that machine is sequentially connected in same fiber link inversely sends reverse transmission data bag, in multiple video optical multiplexers
One or more video optical multiplexers are configured or communicated.
Preferably, as shown in figure 11, above-mentioned sending module 50 can include at least one of：First transmitting element（Figure
Not shown in）, for when reverse transmission data bag is Reverse Turning Control packet, Reverse Turning Control packet inversely being sent, to one
One or more video channels corresponding with each video optical multiplexer are turned on or off in individual or multiple video optical multiplexers；
Second transmitting element（Not shown in figure）, for when reverse transmission data bag is reverse upgrading data packet, reverse transmission to be reverse
Upgrading data packet, the application program inside each video optical multiplexer in one or more video optical multiplexers is upgraded；The
Three transmitting elements（Not shown in figure）, for when reverse transmission data bag is reverse serial data bag, reverse send reversely to be gone here and there
Each video optical multiplexer in mouth packet, with one or more video optical multiplexers carries out telecommunication；4th transmitting element（Figure
Not shown in）, for when reverse transmission data bag is reversing reset packet, reversing reset packet inversely being sent, to one
Each video optical multiplexer in individual or multiple video optical multiplexers carries out remote reset.
As can be seen from the above description, following technique effect is above embodiments enabled（It should be noted that these
Effect is the effect that some preferred embodiments can reach）：The technical scheme that the embodiment of the present invention is provided can utilize
The DNA for being used to encrypt of Xilinx FPGA inside solidifications is used as the ID number of video optical multiplexer, its implementation simple and stable,
Hardware spending is small；By the interaction of status information bag and reverse transfer bag, realize between video optical multiplexer and video optical multiplexer with
And each generic operation between video optical multiplexer and video synthesis platform, it is easy to operation；An optical fiber can be effectively utilized
The bandwidth of link, the distribution mode of node type, expand its distance and scope for applying, such as：The application of highway；Node type
Standard-definition digital video optical transmitter and receiver access video synthesis platform can substitute common standard-definition digital video optical transmitter and receiver access video synthesis
Platform, so as to reduce hardware spending, it is easy to produce；Solve whole transmission using monolithic FPGA, while using asymmetric speed
Optical module realizes the mutual contact mode between each node of node type standard-definition digital video optical transmitter and receiver, and its cost is relatively low.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and formed
Network on, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to they are stored
Performed in the storage device by computing device, and in some cases, can be with different from shown in order execution herein
The step of going out or describing, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or
Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
- A kind of 1. information processing method of video optical multiplexer, it is characterised in that including：State information data packet is obtained, wherein, the information carried in the state information data packet includes：It is connected in turn same The current status information of each video optical multiplexer in multiple video optical multiplexers and each video in bar fiber link The identification information of optical transmitter and receiver, wherein, each video optical multiplexer in multiple video optical multiplexers in same fiber link One can sent to the latter video optical multiplexer adjacent thereto closer to video synthesis platform at interval of preset duration State information data packet after renewal, each video optical multiplexer can be by states caused by itself when sending state information data packet Information is inserted into the previous video optical transmitter and receiver transmission by the remote video synthesis platform adjacent with current video optical transmitter and receiver In the state information data packet to come over, so as to form a new state information data packet, and by the current video light Terminal sends the state information data packet after above-mentioned renewal to the latter video optical multiplexer；According to each current status information of video optical multiplexer and the mark of each video optical multiplexer got Information, the part or all of video optical multiplexer in the multiple video optical multiplexer is asked to send audio and/or video data bag collection Close.
- 2. according to the method for claim 1, it is characterised in that believe according to the current state of each video optical multiplexer The identification information of breath and each video optical multiplexer, the partly or entirely video optical multiplexer is asked to send the audio And/or after video data bag set, in addition to：Receive audio and/or the video data bag set for coming from the partly or entirely video optical multiplexer；Packets of audio data subset and the partly or entirely video light end in the audio and/or video data bag set Machine establishes call, and/or, display output is carried out to the video data bag subset in the audio and/or video data bag set.
- 3. according to the method for claim 1, it is characterised in that believe according to the current state of each video optical multiplexer The identification information of breath and each video optical multiplexer, the partly or entirely video optical multiplexer is asked to send the audio And/or after video data bag set, in addition to：The order being sequentially connected according to the multiple video optical multiplexer in the same fiber link, which is inversely sent, reversely to be passed Transmission of data bag, one or more of the multiple video optical multiplexer video optical multiplexer is configured or communicated.
- 4. according to the method for claim 3, it is characterised in that according to the multiple video optical multiplexer in the same light The order being sequentially connected on fine link inversely sends the reverse transmission data bag, and one or more of video optical multiplexers are entered Row configuration or communication include at least one of：When the reverse transmission data bag is Reverse Turning Control packet, the Reverse Turning Control packet is inversely sent, to described One or more video channels corresponding with each video optical multiplexer are opened or closed in one or more video optical multiplexers Close；When the reverse transmission data bag is reverse upgrading data packet, the reverse upgrading data packet is inversely sent, to described The application program inside each video optical multiplexer in one or more video optical multiplexers is upgraded；When the reverse transmission data bag is reverse serial data bag, the reversely serial data bag is inversely sent, it is and described Each video optical multiplexer in one or more video optical multiplexers carries out telecommunication；When the reverse transmission data bag is reversing reset packet, the reversing reset packet is inversely sent, to described Each video optical multiplexer in one or more video optical multiplexers carries out remote reset.
- 5. according to the method for claim 1, it is characterised in that after the state information data packet is obtained, in addition to：The state information data packet is parsed, obtains each current status information of video optical multiplexer and described The order of connection of multiple video optical multiplexers, wherein, each current status information of video optical multiplexer is in the status information Fill order in packet is identical with the order that the state information data packet is transmitted between the multiple video optical multiplexer.
- 6. method according to any one of claim 1 to 5, it is characterised in that every in the multiple video optical multiplexer Individual video optical multiplexer is via the first optical fiber interface previous video optical transmitter and receiver phase adjacent with the same fiber link Connect and/or be connected via the second optical fiber interface the latter video optical multiplexer adjacent with the same fiber link Connect.
- A kind of 7. information processing system of video optical multiplexer, it is characterised in that including：Acquisition module, for obtaining state information data packet, wherein, the information carried in the state information data packet includes： The current status information of each video optical multiplexer for being connected in turn in multiple video optical multiplexers in same fiber link with And the identification information of each video optical multiplexer, wherein, in multiple video optical multiplexers in same fiber link Each video optical multiplexer can at interval of preset duration to the latter video adjacent thereto closer to video synthesis platform Optical transmitter and receiver sends the state information data packet after a renewal, and each video optical multiplexer can incite somebody to action when sending state information data packet Status information caused by itself is inserted into by the previous of the remote video synthesis platform adjacent with current video optical transmitter and receiver In the state information data packet that video optical multiplexer transmits, so as to form a new state information data packet, and by The current video optical transmitter and receiver sends the state information data packet after above-mentioned renewal to the latter video optical multiplexer；Request module, for according to each current status information of video optical multiplexer got and each video Part or all of video optical multiplexer in the multiple video optical multiplexer of requests for identification information of optical transmitter and receiver sends audio and/or regarded Frequency packet set.
- 8. system according to claim 7, it is characterised in that the system also includes：Receiving module, the audio and/or video data bag of the partly or entirely video optical multiplexer are come from for receiving Set；Processing module, for the packets of audio data subset in the audio and/or video data bag set and the part Or all videos optical transmitter and receiver establishes call, and/or, to the video data steamed stuffed bun in the audio and/or video data bag set Collection carries out display output.
- 9. system according to claim 7, it is characterised in that the system also includes：Sending module, the order for being sequentially connected according to the multiple video optical multiplexer in the same fiber link are inverse To reverse transmission data bag is sent, one or more of the multiple video optical multiplexer video optical multiplexer is configured or led to Letter.
- 10. system according to claim 9, it is characterised in that the sending module includes at least one of：First transmitting element, it is described reverse for when the reverse transmission data bag is Reverse Turning Control packet, inversely sending Control data bag, one or more videos corresponding with each video optical multiplexer in one or more of video optical multiplexers are led to Road is turned on or off；Second transmitting element, it is described reverse for when the reverse transmission data bag is reverse upgrading data packet, inversely sending Upgrading data packet, the application program inside each video optical multiplexer in one or more of video optical multiplexers is risen Level；3rd transmitting element, it is described reverse for when the reverse transmission data bag is reverse serial data bag, inversely sending Each video optical multiplexer in serial data bag, with one or more of video optical multiplexers carries out telecommunication；4th transmitting element, it is described reverse for when the reverse transmission data bag is reversing reset packet, inversely sending Reseting data bag, remote reset is carried out to each video optical multiplexer in one or more of video optical multiplexers.
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