CN103888845B - Digital screen broadcasting on demand system and method thereof - Google Patents
Digital screen broadcasting on demand system and method thereof Download PDFInfo
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- CN103888845B CN103888845B CN201410112432.1A CN201410112432A CN103888845B CN 103888845 B CN103888845 B CN 103888845B CN 201410112432 A CN201410112432 A CN 201410112432A CN 103888845 B CN103888845 B CN 103888845B
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Abstract
A digital screen broadcasting on demand system and method thereof comprise a main server which is connected with a radio and television cable broadband network and is used for digital screen broadcast control, a secondary sever used for cable television broadcasting on demand, and a secondary server used for notice signal broadcasting. The radio and television cable broadband network is connected with a wireless router, the wireless router is connected with more than one wireless network card in a wireless mode, each wireless network card is arranged in the corresponding wireless digital screen, controllers of the wireless digital screens are connected with the corresponding wireless network cards and the corresponding wireless digital screens respectively through actuators, each wireless digital screen is provided with a corresponding adaptive remote control, and the defect that inconvenience in broadcasting is actually brought out by messy codes, unclear pictures and complex modes and structures on the screen caused by the fact that orderly broadcasting on demand cannot be achieved in the existing technology is effectively avoided by the combination of the method of broadcasting on demand.
Description
Technical field
The invention belongs to for digital screen technical field and in particular to a kind of digital screen VOD system and its order method.
Background technology
Existing DTV because image quality is clear and the mode of networking is increasingly widely applied, but
It is because when digital audio/video stream transmits in program request, because the packet amount of audio frequency and video is too big, even if carrying out before transmission
Compression, packet amount is also high, is also required to carry out decompressing post processing, Ran Houjin after having added Digital TV Receiving
Row parsing, so often cannot realize orderly program request and show the mess code leading on screen, picture will be unclear, this complexity
Mode and structure bring the inconvenience of broadcasting really.
Content of the invention
It is an object of the invention to provide a kind of digital screen VOD system and its order method, including same broadcasting and TV cable broadband network
The master server for digital screen Broadcast Control that is connected, the secondary server for catv on demand and be used for right of way signal
The secondary server play, broadcasting and TV cable broadband network is connected with wireless router, and wireless router is same above wireless
Network interface card mutually wirelessly connects, and each wireless network card is built in each self-corresponding wireless digital screen respectively, each wireless digital
The controller of screen is connected with wireless digital screen driver with respective wireless network card, and each wireless digital screen is respectively configured
There is the remote control of respective adaptation, and can be prevented effectively from reference to its order method and of the prior art cannot realize orderly program request and show
Show the unclear and complicated mode of the mess code leading on screen, picture and structure really bring broadcasting inconvenience defect.
In order to overcome deficiency of the prior art, the invention provides a kind of digital screen broadcast control system and its broadcast control method,
Specific as follows:
A kind of digital screen VOD system, the main clothes for digital screen Broadcast Control being connected including same broadcasting and TV cable broadband network 5
Business device 1, the secondary server 3 for catv on demand and the secondary server 4 play for right of way signal, broadcasting and TV are wired
Broadband networks 5 are connected with wireless router 6, and the same above wireless network card 7 of wireless router 6 mutually wirelessly connects, each
Wireless network card 7 is all built in each self-corresponding wireless digital screen 8 respectively, and the controller 10 of each wireless digital screen 8 is with each
Wireless network card 7 be connected with wireless digital screen driver 11, each wireless digital screen 8 is each configured with each being adapted to
Remote control 9, described remote control 9 outer wall is provided with liquid crystal display screen 13, is that 0, Digital ID is 1, counts by being respectively provided with Digital ID
Word be designated 2, Digital ID be 3, Digital ID be 4, Digital ID be 5, Digital ID be 6, Digital ID be 7, numeral mark
Know digital keys group 14 and the confirmation button for selecting channel of nine digital keys compositions being 9 for 8, Digital ID
15, it is provided with processor 12 in described remote control 9, processor 12 passes through keycoder 19 with for selecting channel really
Recognize button 15 and be respectively provided with Digital ID be 0, Digital ID be 1, Digital ID be 2, Digital ID be 3, Digital ID
For 4, Digital ID be 5, Digital ID be 6, Digital ID be 7, Digital ID be 8, Digital ID be 9 nine digital keys
It is connected, liquid crystal display screen 13 is connected with the processor 12 of setting in remote control 9.
It is provided with by cable television channels quantity in hard disk in the described secondary server 3 for catv on demand
Same amount of video on demand fdisk, each cable television channels corresponds to a video on demand fdisk, often
One video on demand fdisk is deposited the voice data stream of program request required for corresponding cable television channels and is needed
Want the video data stream of program request, need the audio frame in the voice data stream of program request according to reproduction time the order after arriving first
It is arranged in order, the order after arriving first is arranged in order according to reproduction time to need the frame of video in the video data stream of program request,
Other internal memory in the secondary server 3 for catv on demand is provided with same amount of by cable television channels quantity
Video on demand memory partitioning, each cable television channels corresponds to a video on demand memory partitioning, is additionally useful for wired
It is additionally provided with audio/video player in hard disk in the secondary server 3 of video on demand；The auxiliary clothes play for right of way signal
Business device 4 is provided with same amount of right of way signal broadcasting fdisk, each cable television by cable television channels quantity
Channel corresponds to a right of way signal broadcasting fdisk, and each fdisk deposits corresponding cable television channels
The data flow of the right of way signal of required program request, need the Frame of right of way signal in the data flow of right of way signal of program request by
Be arranged in order according to order after arriving first for the reproduction time, in addition in the secondary server 4 play for right of way signal in
Deposit and cable television channels quantity is provided with same amount of right of way signal broadcasting memory partitioning, each cable television channels
A corresponding right of way signal broadcasting memory partitioning, is additionally useful in the hard disk in the secondary server 4 of right of way signal broadcasting also
It is provided with picture players.
The order method of described digital screen VOD system, step is as follows:
Step 1: start the master server 1 for digital screen Broadcast Control that same broadcasting and TV cable broadband network 5 is connected first, be used for
The secondary server 3 of catv on demand and the secondary server 4 play for right of way signal, are subsequently used for digital screen Broadcast Control
Master server 1 respectively to the secondary server 3 for catv on demand and for right of way signal play assistant service
Device 4 sends the starting time packet that the starting time packet of cable television channels program request and right of way signal are play, described
The starting time packet of cable television channels program request includes the channel number of each cable television channels and to should be wired
The starting time of the audio frequency and video of the program request of television channel, the starting time packet that described right of way signal is play includes each
The channel number of cable television channels and to should cable television channels right of way signal play starting time, for wired
If the secondary server 3 of video on demand and the secondary server 4 play for right of way signal have been respectively received and have been used for noticing
The secondary server 4 that signal is play sends the startup that the starting time packet of cable television channels program request and right of way signal are play
Time data bag, for the secondary server 3 just starting time packet to cable television channels program request of catv on demand
Be decoded obtaining the channel number of each cable television channels and to should cable television channels program request audio frequency and video
Starting time, the starting time packet just right of way signal play for the secondary server 4 that right of way signal is play solves
Code obtain each cable television channels channel number and to should cable television channels right of way signal play startup when
Between；
Step 2: when the starting time of the audio frequency and video of the program request corresponding in each cable television channels reaches, for wired
The secondary server 3 of video on demand just starts audio/video player and the starting time of the audio frequency and video needing program request is reached when institute
The sound in the voice data stream of program request is needed in video on demand fdisk corresponding to each cable television channels corresponding
The order after arriving first is loaded into needs in batches according to reproduction time for frequency frame and the frame of video in needing the video data stream of program request
The voice data stream of program request and the TV point corresponding to each cable television channels corresponding to video data stream needing program request
Broadcast and use memory partitioning, the audio frame in every batch of voice data stream needing program request being loaded in video on demand memory partitioning
By audio/video player, according to reproduction time, the order after arriving first takes with the frame of video in the video data stream needing program request
Out continuously play；
Step 3: when the starting time of the right of way signal corresponding in each cable television channels reaches, for right of way signal
The secondary server 4 play when just starting picture players and the starting time of right of way signal being reached corresponding each wired
The notice in the data flow of right of way signal of program request is needed to believe in right of way signal broadcasting fdisk corresponding to television channel
Number Frame according to reproduction time the order after arriving first be loaded in batches the right of way signal needing program request data flow institute right
The right of way signal broadcasting memory partitioning corresponding to each cable television channels answered, every batch is loaded into right of way signal and plays use
The Frame of the right of way signal in the data flow of the right of way signal needing program request in memory partitioning is by picture players according to broadcasting
The taking out in turn after arriving first putting the time is continuously play；
Step 4: when having wireless digital screen 8 to need to show the request program of cable television channels, wired according to this
The number series of the channel number of television channel, according to the order from high to low of this number series, press similarly hereinafter this digital sequence one by one
The consistent digital keys of number of row, all digital keys being pressed all are converted into channel number by keycoder 19 successively
Number series be sent to processor 12 in remote control 9, the number series of this channel number are forwarded to liquid crystal display screen by processor 12
Show on 13, if the number series of this channel number do not have error, then press the confirmation button 15 for selecting channel, so locate
Reason device 12 just can receive the confirmation signal that sent of button 15 pressed for selecting channel, then wireless digital screen 8
The number series of the channel number receiving are sent to wireless router 6 through wireless network card 7 by processor 12, then by wireless routing
Device 6 is sent to in the master server 1 of digital screen Broadcast Control through broadcasting and TV cable broadband network 5；
Step 5: the master server 1 for digital screen Broadcast Control receives after the number series of channel number, is just had by broadcasting and TV
Line broadband networks 5 send bag to the secondary server 3 for catv on demand with for the secondary server 4 of right of way signal broadcasting
The order request packet of the number series containing channel number；
Step 6: when the secondary server 3 for catv on demand receives the point of the number series including channel number
After broadcasting request data package, the order request packet just including the number series of channel number to this is decoded acquisition and requires a little
The channel number broadcast, derives its cable television channels according to the channel number that decoding obtains, then takes every time in audio/video player
When going out audio frame and the frame of video in the video on demand memory partitioning corresponding with this cable television channels, for cable television
Audio/video player is just taken out every time the video on demand corresponding with this cable television channels with interior by the secondary server 3 of program request
Carry out video compress with depositing audio frame and video frame synchronization in subregion, then the audio frame after video compress and frame of video successively
It is delivered to the channel number sending this cable television channels through broadcasting and TV cable broadband network 5, wireless router 6 and wireless network card 7
In the wireless digital screen 8 of number series, wireless digital screen 8 passes through after the audio frame after video compress and frame of video decompression again
Wireless digital screen driver 11 carries out program request in the designated play area of wireless digital screen 8；
Step 7: when the secondary server 4 play for right of way signal receives the point of the number series including channel number
After broadcasting request data package, the order request packet just including the number series of channel number to this is decoded acquisition and requires a little
The channel number broadcast, derives its cable television channels according to the channel number that decoding obtains, then takes out every time in picture players
Notice letter in the data flow of right of way signal in the right of way signal broadcasting memory partitioning corresponding with this cable television channels
Number Frame when, just picture players are taken out every time and this cable television for the secondary server 4 that right of way signal is play
The data-frame sync ground of the right of way signal in the data flow of right of way signal in the corresponding video on demand memory partitioning of channel
Carry out picture compression, then the Frame of the right of way signal after picture compression is sequentially passed through broadcasting and TV cable broadband network 5, wireless routing
Device 6 and wireless network card 7 are delivered in the wireless digital screen 8 of the number series of channel number sending this cable television channels, wirelessly
Digital screen 8 will pass through wireless digital screen driver 11 again wireless after the Frame decompression of the right of way signal after picture compression
Carry out program request in the specified notice play area of digital screen 8.
For improve production efficiency, the structures and methods that the present invention adopts can simply be realized and be directly over playing
The progress of device is real to be simulated and selects corresponding data flow to carry out real-time program request, thus can be effective.
Brief description
Fig. 1 is the attachment structure schematic diagram of the digital screen broadcast control system of the present invention.
Fig. 2 is the structural representation of the remote control of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples content of the invention is described further:
Shown in seeing figures.1.and.2, digital screen VOD system, including same broadcasting and TV cable broadband network 5 be connected for numeral
The master server 1 of screen Broadcast Control, the secondary server 3 for catv on demand and the assistant service play for right of way signal
Device 4, broadcasting and TV cable broadband network 5 is connected with wireless router 6, and the same above wireless network card 7 of wireless router 6 is mutually wireless
Connect, each wireless network card 7 is built in each self-corresponding wireless digital screen 8 respectively, the control of each wireless digital screen 8
Device 10 processed is connected with wireless digital screen driver 11 with respective wireless network card 7, and each wireless digital screen 8 is respectively configured
There is the remote control 9 of respective adaptation, described remote control 9 outer wall is provided with liquid crystal display screen 13, by be respectively provided with Digital ID be 0, number
Word be designated 1, Digital ID be 2, Digital ID be 3, Digital ID be 4, Digital ID be 5, Digital ID be 6, numeral mark
Know for 7, Digital ID be 8, Digital ID is the 9 digital keys group 14 of nine digital keys composition and is used for selecting channel
Confirmation button 15, be provided with processor 12 in described remote control 9, processor 12 pass through keycoder 19 with for selecting
Select channel confirmation button 15 and be respectively provided with Digital ID be 0, Digital ID be 1, Digital ID be 2, Digital ID be
3rd, Digital ID be 4, Digital ID be 5, Digital ID be 6, Digital ID be 7, Digital ID be 8, Digital ID be 9 nine
Individual digital keys are connected, and liquid crystal display screen 13 is connected with the processor 12 of setting in remote control 9, and such keyboard structure can be straight
Connect structure and the transmitting forming channel number easily and fast.Hard in the described secondary server 3 for catv on demand
In disk, cable television channels quantity is provided with same amount of video on demand fdisk, each cable television channels pair
Answer a video on demand fdisk, each video on demand fdisk deposits corresponding cable television channels
The voice data stream of required program request and need the video data stream of program request, need audio frame in the voice data stream of program request by
It is arranged in order according to order after arriving first for the reproduction time, need the frame of video in the video data stream of program request according to reproduction time
The order after arriving first be arranged in order, in addition the internal memory in the secondary server 3 for catv on demand press wired electricity
Tv channel quantity is provided with same amount of video on demand memory partitioning, and each cable television channels corresponds to a TV point
Broadcast and use memory partitioning, be additionally useful for being additionally provided with audio/video player in the hard disk in the secondary server 3 of catv on demand；
For the secondary server 4 that right of way signal is play, cable television channels quantity is provided with same amount of right of way signal and plays use
Fdisk, each cable television channels corresponds to a right of way signal broadcasting fdisk, and each fdisk is deposited
The data flow of the right of way signal of program request required for corresponding cable television channels, need the data of the right of way signal of program request
According to reproduction time, the order after arriving first is arranged in order, in addition for right of way signal the Frame of the right of way signal in stream
Internal memory in the secondary server 4 play is provided with same amount of right of way signal broadcasting internal memory by cable television channels quantity
Subregion, each cable television channels corresponds to a right of way signal broadcasting memory partitioning, is additionally useful for right of way signal broadcasting
It is additionally provided with picture players, the rule of such order after arriving first is it becomes possible to reduce in hard disk in secondary server 4
Separator in the data flow of bulk redundancy, which thereby enhances the efficiency of program request.
The order method of described digital screen VOD system, step is as follows:
Step 1: start the master server 1 for digital screen Broadcast Control that same broadcasting and TV cable broadband network 5 is connected first, be used for
The secondary server 3 of catv on demand and the secondary server 4 play for right of way signal, are subsequently used for digital screen Broadcast Control
Master server 1 respectively to the secondary server 3 for catv on demand and for right of way signal play assistant service
Device 4 sends the starting time packet that the starting time packet of cable television channels program request and right of way signal are play, described
The starting time packet of cable television channels program request includes the channel number of each cable television channels and to should be wired
The starting time of the audio frequency and video of the program request of television channel, the starting time packet that described right of way signal is play includes each
The channel number of cable television channels and to should cable television channels right of way signal play starting time, for wired
If the secondary server 3 of video on demand and the secondary server 4 play for right of way signal have been respectively received and have been used for noticing
The secondary server 4 that signal is play sends the startup that the starting time packet of cable television channels program request and right of way signal are play
Time data bag, for the secondary server 3 just starting time packet to cable television channels program request of catv on demand
Be decoded obtaining the channel number of each cable television channels and to should cable television channels program request audio frequency and video
Starting time, the starting time packet just right of way signal play for the secondary server 4 that right of way signal is play solves
Code obtain each cable television channels channel number and to should cable television channels right of way signal play startup when
Between；
Step 2: when the starting time of the audio frequency and video of the program request corresponding in each cable television channels reaches, for wired
The secondary server 3 of video on demand just starts audio/video player and the starting time of the audio frequency and video needing program request is reached when institute
The sound in the voice data stream of program request is needed in video on demand fdisk corresponding to each cable television channels corresponding
The order after arriving first is loaded into needs in batches according to reproduction time for frequency frame and the frame of video in needing the video data stream of program request
The voice data stream of program request and the TV point corresponding to each cable television channels corresponding to video data stream needing program request
Broadcast and use memory partitioning, the audio frame in every batch of voice data stream needing program request being loaded in video on demand memory partitioning
By audio/video player, according to reproduction time, the order after arriving first takes with the frame of video in the video data stream needing program request
Out continuously play；
Step 3: when the starting time of the right of way signal corresponding in each cable television channels reaches, for right of way signal
The secondary server 4 play when just starting picture players and the starting time of right of way signal being reached corresponding each wired
The notice in the data flow of right of way signal of program request is needed to believe in right of way signal broadcasting fdisk corresponding to television channel
Number Frame according to reproduction time the order after arriving first be loaded in batches the right of way signal needing program request data flow institute right
The right of way signal broadcasting memory partitioning corresponding to each cable television channels answered, every batch is loaded into right of way signal and plays use
The Frame of the right of way signal in the data flow of the right of way signal needing program request in memory partitioning is by picture players according to broadcasting
The taking out in turn after arriving first putting the time is continuously play；
Step 4: when having wireless digital screen 8 to need to show the request program of cable television channels, wired according to this
The number series of the channel number of television channel, according to the order from high to low of this number series, press similarly hereinafter this digital sequence one by one
The consistent digital keys of number of row, all digital keys being pressed all are converted into channel number by keycoder 19 successively
Number series be sent to processor 12 in remote control 9, the number series of this channel number are forwarded to liquid crystal display screen by processor 12
Show on 13, if the number series of this channel number do not have error, then press the confirmation button 15 for selecting channel, so locate
Reason device 12 just can receive the confirmation signal that sent of button 15 pressed for selecting channel, then wireless digital screen 8
The number series of the channel number receiving are sent to wireless router 6 through wireless network card 7 by processor 12, then by wireless routing
Device 6 is sent to in the master server 1 of digital screen Broadcast Control through broadcasting and TV cable broadband network 5；
Step 5: the master server 1 for digital screen Broadcast Control receives after the number series of channel number, is just had by broadcasting and TV
Line broadband networks 5 send bag to the secondary server 3 for catv on demand with for the secondary server 4 of right of way signal broadcasting
The order request packet of the number series containing channel number；
Step 6: when the secondary server 3 for catv on demand receives the point of the number series including channel number
After broadcasting request data package, the order request packet just including the number series of channel number to this is decoded acquisition and requires a little
The channel number broadcast, derives its cable television channels according to the channel number that decoding obtains, then takes every time in audio/video player
When going out audio frame and the frame of video in the video on demand memory partitioning corresponding with this cable television channels, for cable television
Audio/video player is just taken out every time the video on demand corresponding with this cable television channels with interior by the secondary server 3 of program request
Carry out video compress with depositing audio frame and video frame synchronization in subregion, then the audio frame after video compress and frame of video successively
It is delivered to the channel number sending this cable television channels through broadcasting and TV cable broadband network 5, wireless router 6 and wireless network card 7
In the wireless digital screen 8 of number series, wireless digital screen 8 passes through after the audio frame after video compress and frame of video decompression again
Wireless digital screen driver 11 carries out program request in the designated play area of wireless digital screen 8；
Step 7: when the secondary server 4 play for right of way signal receives the point of the number series including channel number
After broadcasting request data package, the order request packet just including the number series of channel number to this is decoded acquisition and requires a little
The channel number broadcast, derives its cable television channels according to the channel number that decoding obtains, then takes out every time in picture players
Notice letter in the data flow of right of way signal in the right of way signal broadcasting memory partitioning corresponding with this cable television channels
Number Frame when, just picture players are taken out every time and this cable television for the secondary server 4 that right of way signal is play
The data-frame sync ground of the right of way signal in the data flow of right of way signal in the corresponding video on demand memory partitioning of channel
Carry out picture compression, then the Frame of the right of way signal after picture compression is sequentially passed through broadcasting and TV cable broadband network 5, wireless routing
Device 6 and wireless network card 7 are delivered in the wireless digital screen 8 of the number series of channel number sending this cable television channels, wirelessly
Digital screen 8 will pass through wireless digital screen driver 11 again wireless after the Frame decompression of the right of way signal after picture compression
Carry out program request in the specified notice play area of digital screen 8, such method only need to be carried out according to original order it is not necessary to
Lead to the inefficiency of data stream transmitting because of mixed and disorderly discharge.
The above, be only presently preferred embodiments of the present invention, not the present invention is made with any pro forma restriction, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any is familiar with this professional technology people
Member, in the range of without departing from technical solution of the present invention, when the technology contents of available the disclosure above make a little change or modification
For the Equivalent embodiments of equivalent variations, as long as being without departing from technical solution of the present invention content, according to the technical spirit of the present invention,
Within the spirit and principles in the present invention, any simple modification, equivalent and improvement that above example is made etc., all still
Belong within the protection domain of technical solution of the present invention.
Claims (2)
1. a kind of digital screen VOD system it is characterised in that include that same broadcasting and TV cable broadband network (5) is connected for digital screen
The master server (1) of Broadcast Control, the secondary server (3) for catv on demand and the auxiliary clothes play for right of way signal
Business device (4), the same wireless router of broadcasting and TV cable broadband network (5) (6) is connected, and wireless router (6) is same above wireless
Network interface card (7) mutually wirelessly connects, and each wireless network card (7) is built in each self-corresponding wireless digital screen (8) respectively, often
The controller (10) of individual wireless digital screen (8) is connected with wireless digital screen driver (11) with respective wireless network card (7),
Each wireless digital screen (8) is each configured with the remote control (9) being each adapted to, and described remote control (9) outer wall is provided with liquid
Brilliant screen (13), by be respectively provided with Digital ID be 0, Digital ID be 1, Digital ID be 2, Digital ID be that 3, Digital ID is
4th, Digital ID be 5, Digital ID be 6, Digital ID be 7, Digital ID be 8, Digital ID be 9 nine digital keys groups
The digital keys group (14) becoming and the confirmation button (15) for selecting channel, are provided with process in described remote control (9)
Device (12), processor (12) passes through keycoder (19) with for selecting the confirmation button (15) of channel and being respectively provided with number
Word be designated 0, Digital ID be 1, Digital ID be 2, Digital ID be 3, Digital ID be 4, Digital ID be 5, numeral mark
Know for 6, Digital ID be 7, Digital ID be 8, Digital ID be that 9 nine digital keys are connected, liquid crystal display screen (13) is with distant
In control device (9), the processor (12) of setting is connected；Hard disk in the described secondary server (3) for catv on demand
Interior cable television channels quantity is provided with same amount of video on demand fdisk, each cable television channels corresponds to
One video on demand fdisk, each video on demand fdisk deposits corresponding cable television channels institute
The voice data stream needing program request and the video data stream needing program request, need audio frame in the voice data stream of program request according to
The order after arriving first of reproduction time is arranged in order, and needs the frame of video in the video data stream of program request according to reproduction time
Order after arriving first is arranged in order, and in addition the internal memory in the secondary server (3) for catv on demand presses wired electricity
Tv channel quantity is provided with same amount of video on demand memory partitioning, and each cable television channels corresponds to a TV point
Broadcast and use memory partitioning, be additionally useful for being additionally provided with audio/video player in the hard disk in the secondary server 3 of catv on demand；
For the secondary server (4) that right of way signal is play, cable television channels quantity is provided with same amount of right of way signal to play
With fdisk, each cable television channels one right of way signal broadcasting fdisk of correspondence, each fdisk is deposited
Put the data flow of the right of way signal of program request required for corresponding cable television channels, need the number of the right of way signal of program request
According to the Frame of right of way signal in stream, according to reproduction time, the order after arriving first is arranged in order, in addition for notice letter
Internal memory in number secondary server (4) play is provided with same amount of right of way signal by cable television channels quantity to be play and uses
Memory partitioning, each cable television channels corresponds to a right of way signal broadcasting memory partitioning, is additionally useful for right of way signal and broadcasts
It is additionally provided with picture players in hard disk in the secondary server 4 put.
2. the order method of digital screen VOD system according to claim 1 is it is characterised in that step is as follows:
Step 1: start the master server (1) for digital screen Broadcast Control that same broadcasting and TV cable broadband network (5) is connected first, be used for
The secondary server (3) of catv on demand and the secondary server (4) play for right of way signal, are subsequently used for digital screen
The master server (1) of Broadcast Control is respectively to the secondary server (3) for catv on demand and for right of way signal broadcasting
Secondary server (4) sends the starting time data that the starting time packet of cable television channels program request and right of way signal are play
Bag, the starting time packet of described cable television channels program request includes the channel number of each cable television channels and right
Should cable television channels the audio frequency and video of program request starting time, the starting time packet bag that described right of way signal is play
Include each cable television channels channel number and to should cable television channels right of way signal play starting time,
Secondary server (3) for catv on demand and the secondary server (4) play for right of way signal are if received respectively
Arrive starting time packet and the notice sending cable television channels program request for the secondary server (4) that right of way signal is play
The starting time packet that signal is play, the secondary server (3) for catv on demand is just to cable television channels program request
Starting time packet be decoded obtaining the channel number of each cable television channels and to should cable television channels
The audio frequency and video of program request starting time, for right of way signal play secondary server (4) just right of way signal broadcasting is opened
Dynamic time data bag is decoded obtaining the channel number of each cable television channels and to should cable television channels lead to
Accuse the starting time that signal is play；
Step 2: when the starting time of the audio frequency and video of the program request corresponding in each cable television channels reaches, for cable television
The secondary server (3) of program request just starts audio/video player and right for institute during the starting time arrival of the audio frequency and video needing program request
The audio frequency in the voice data stream of program request is needed in the video on demand fdisk corresponding to each cable television channels answered
The order after arriving first is loaded in batches and needs a little according to reproduction time for frame and the frame of video in needing the video data stream of program request
The voice data stream broadcast and the video on demand corresponding to each cable television channels corresponding to video data stream needing program request
With memory partitioning, the audio frame in every batch of voice data stream needing program request being loaded in video on demand memory partitioning and
Need frame of video in the video data stream of program request by audio/video player according to reproduction time taking out in turn after arriving first
Continuously to be play；
Step 3: when the starting time of the right of way signal corresponding in each cable television channels reaches, play for right of way signal
Each the wired electricity corresponding when just starting picture players and the starting time of right of way signal being reached of secondary server (4)
The right of way signal in the data flow of right of way signal of program request is needed in right of way signal broadcasting fdisk corresponding to tv channel
Frame according to reproduction time, the order after arriving first is loaded into corresponding to the data flow of the right of way signal needing program request in batches
The right of way signal broadcasting memory partitioning corresponding to each cable television channels, every batch is loaded into right of way signal and plays with interior
Deposit the Frame of right of way signal in the data flow of the right of way signal needing program request in subregion by picture players according to broadcasting
The taking out in turn after arriving first of time is continuously play；
Step 4: when there being wireless digital screen (8) to need the request program showing cable television channels, according to this wired electricity
The number series of the channel number of tv channel, according to the order from high to low of this number series, press similarly hereinafter this number series one by one
The consistent digital keys of number, all digital keys being pressed all are converted into channel number by keycoder (19) successively
Number series be sent to processor (12) in remote control (9), the number series of this channel number are forwarded to by processor (12)
Liquid crystal display screen (13) is upper to be shown, if the number series of this channel number do not have error, then presses the confirmation button for selecting channel
(15), such processor (12) just can receive the signal pressed for selecting the confirmation button (15) of channel to be sent, so
The number series of the channel number receiving are sent to no by the processor (12) of wireless digital screen (8) through wireless network card (7) afterwards
Line router (6), the more main clothes for digital screen Broadcast Control are sent to by wireless router (6) through broadcasting and TV cable broadband network (5)
In business device (1)；
Step 5: after the master server (1) for digital screen Broadcast Control receives the number series of channel number, just wired by broadcasting and TV
Broadband networks (5) are sent out to the secondary server (3) for catv on demand with for the secondary server (4) of right of way signal broadcasting
Send the order request packet of the number series including channel number；
Step 6: when the secondary server (3) for catv on demand receives the program request of the number series including channel number
After request data package, the order request packet just including the number series of channel number to this is decoded acquisition and requires program request
Channel number, according to decoding obtain channel number derive its cable television channels, then take out every time in audio/video player
When the audio frame in the video on demand memory partitioning corresponding with this cable television channels and frame of video, for cable television point
Audio/video player is just taken out every time the video on demand corresponding with this cable television channels with interior by the secondary server (3) broadcast
Carry out video compress with depositing audio frame and video frame synchronization in subregion, then the audio frame after video compress and frame of video successively
It is delivered to the frequency sending this cable television channels through broadcasting and TV cable broadband network (5), wireless router (6) and wireless network card (7)
In the wireless digital screen (8) of the number series of Taoist monastic name, the audio frame after video compress and frame of video are decompressed by wireless digital screen (8)
Again program request is carried out with driver (11) in the designated play area of wireless digital screen (8) by wireless digital screen after contracting；
Step 7: when the secondary server (4) play for right of way signal receives the program request of the number series including channel number
After request data package, the order request packet just including the number series of channel number to this is decoded acquisition and requires program request
Channel number, its cable television channels is derived according to the channel number that decoding obtains, then picture players take out every time with
The right of way signal in the data flow of right of way signal in the corresponding right of way signal broadcasting memory partitioning of this cable television channels
Frame when, just picture players are taken out every time and this cable television for the secondary server (4) that right of way signal is play
The data-frame sync ground of the right of way signal in the data flow of right of way signal in the corresponding video on demand memory partitioning of channel
Carry out picture compression, then the Frame of the right of way signal after picture compression is sequentially passed through broadcasting and TV cable broadband network (5), no circuit
It is delivered to the wireless digital screen (8) of the number series of the channel number sending this cable television channels by device (6) and wireless network card (7)
In, wireless digital screen (8) drives passing through wireless digital screen after the Frame decompression of the right of way signal after picture compression again
Device (11) carries out program request in the specified notice play area of wireless digital screen (8).
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101060617A (en) * | 2007-05-22 | 2007-10-24 | 华为技术有限公司 | A video-on-demand control method, customer terminal equipment and switching control device |
| CN101742061A (en) * | 2008-11-21 | 2010-06-16 | 康佳集团股份有限公司 | Method and system for updating software of liquid crystal display television (LCD TV) |
| CN101872539A (en) * | 2009-04-24 | 2010-10-27 | 北京华旗资讯数码科技有限公司 | Remote controller and system thereof for remotely controlling target electric appliance |
| CN103888795A (en) * | 2014-03-25 | 2014-06-25 | 南京东屹讯多媒体科技有限公司 | Digital screen on time broadcasting system and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102017623B (en) * | 2007-08-01 | 2013-07-31 | 夏普株式会社 | Network AV device and AV network system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101060617A (en) * | 2007-05-22 | 2007-10-24 | 华为技术有限公司 | A video-on-demand control method, customer terminal equipment and switching control device |
| CN101742061A (en) * | 2008-11-21 | 2010-06-16 | 康佳集团股份有限公司 | Method and system for updating software of liquid crystal display television (LCD TV) |
| CN101872539A (en) * | 2009-04-24 | 2010-10-27 | 北京华旗资讯数码科技有限公司 | Remote controller and system thereof for remotely controlling target electric appliance |
| CN103888795A (en) * | 2014-03-25 | 2014-06-25 | 南京东屹讯多媒体科技有限公司 | Digital screen on time broadcasting system and method thereof |
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