CN108966037A - A kind of digital film projector method and system based on satellite reception - Google Patents
A kind of digital film projector method and system based on satellite reception Download PDFInfo
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- CN108966037A CN108966037A CN201810870902.9A CN201810870902A CN108966037A CN 108966037 A CN108966037 A CN 108966037A CN 201810870902 A CN201810870902 A CN 201810870902A CN 108966037 A CN108966037 A CN 108966037A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6143—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a satellite
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/254—Management at additional data server, e.g. shopping server, rights management server
- H04N21/2541—Rights Management
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
- H04N21/4353—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream involving decryption of additional data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
- H04N21/4385—Multiplex stream processing, e.g. multiplex stream decrypting
- H04N21/43853—Multiplex stream processing, e.g. multiplex stream decrypting involving multiplex stream decryption
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video stream decryption
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4627—Rights management associated to the content
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6125—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via Internet
Abstract
The invention discloses a kind of digital film projector method and system based on satellite reception, this method is in such a way that satellite network+internet combines, using satellite reception module and digital film projector playback equipment integrated design, allow user at the appointed time, substance film and authorization message are received everywhere, increase the timeliness of film projection, reduce time and the cost of labor of local cinemas company copy film, especially for remote districts, the traffic such as mountain area and network under-developed area, increase movie playback play and content quantity, economic benefit is significantly increased.
Description
Technical field
The present invention relates to digital cinema technology field, in particular to a kind of digital film projector method based on satellite reception
And system.
Background technique
With the development of technology, digital movie machine application digital micro-mirror switching device DMD-digital optical switch array sum number
Word signal processing technology, using the digital film projector new model of advanced digital optical processing technique DLP, instead of traditional film
Projector color film image repetition mode, realizes no film projection.
The existing digital film projector player of existing market to the acquisition of content in the following way: SARFT(The State Administration of Radio and Television)
The substance film of digital program administrative center is delivered to the storage square of nationwide local cinemas company by the satellite of Asia-Pacific 6
In battle array, the mobile film projection team of local each point is copied by the storage matrix of hard disk manner to the cinemas company.Local institute
Line company logs in the account that digital program administrative center of SARFT(The State Administration of Radio and Television) is distributed by internet and carries out movie playback authorization
Purchase.The mobile film projection team of each point can log in the corresponding account of digital program administrative center of SARFT(The State Administration of Radio and Television) by internet
Number, this film projection team digital film projector player device is obtained to the play authorization of the deserved substance film, downloads play authorization
File is written in the smart card on digital film projector player by card writer.The digital film projector player can be broadcast
Put the substance film.
Digital movie broadcast mode in the prior art, substance film need timing that local cinemas company is gone to copy, need
Time and cost of labor, real-time are poor.Movie playback authority needs manual entry to obtain, and needs to configure corresponding hardware device
It is supported with internet (or mobile network), for having certain limitation for remote countryside.Also, the existing number electricity of existing market
Shadow projection player only supports the broadcasting of the substance film of digital program administrative center of SARFT(The State Administration of Radio and Television).
It is played to adapt to the digital movie of vast remote districts, there is an urgent need for a kind of easy-to-use digital film projector sides
Formula, it is various in existing presentation mode to solve the problems, such as.
Summary of the invention
The present invention provides a kind of digital film projector method and system based on satellite reception, can be realized digital movie and puts
Integrated design is reflected, to increase the timeliness of film projection.
According to an aspect of the invention, there is provided a kind of digital film projector method based on satellite reception, including with
Lower step:
Digital film projector playback equipment obtains digital movie play authorization to central platform by internet；
According to the digital movie play authorization, digital film projector playback equipment passes through satellite reception digital cinema movies
Content-data and corresponding film authority；
According to the digital cinema movies play instruction of user, digital film projector playback equipment calls in the digital movie shadow
The authority of piece, is decrypted authority；
According to the authority after the decryption, the substance film data are called in, the substance film is decrypted
Clear stream file is formed afterwards, is output to the broadcasting that video and audio output carries out film.
After the digital film projector playback equipment obtains digital movie play authorization to central platform by internet, packet
It includes:
Corresponding smart card is written into the authorization, the authorized certificate as the digital film projector playback equipment；
Central platform is according to the authority for authorizing determining respective digital motion picture film.
The digital film projector playback equipment passes through satellite reception digital cinema movies content-data and corresponding film
Authority specifically includes:
The central platform is pushed the digital cinema movies content-data encrypted and film authority by satellite
Digital film projector playback equipment；
The process of the push at least carries out 3 times；
The digital film projector playback equipment is by 3 received digital cinema movies content-datas and film authority
It is stored after comparison.
The method also includes:
The digital cinema movies content-data and film authority of the storage are flat by user's manual operation, center
Platform, which passes through, sends instructions operation under internet or central platform default storage management rule is managed.
The method also includes:
Digital film projector playback equipment calls in the film after receiving the digital cinema movies play instruction of user
Authority is decrypted in authority；
Determine the film authority be validity period, be this terminal authorization message after, played accordingly
Operation.
The method also includes:
Digital film projector playback equipment is passing through internet to the digital cinema movies content-data and corresponding shadow
Piece authority is repaired and is re-downloaded.
According to another aspect of the present invention, a kind of digital film projector system based on satellite reception is provided, including
Central platform and several digital film projector playback equipments, wherein
The central platform, for generating and sending the corresponding number of the digital film projector playback equipment by internet
Word film play authorization；The request of digital film projector playback equipment is pushed by satellite according to the digital movie play authorization
Digital cinema movies content-data and corresponding film authority；
The digital film projector playback equipment is awarded for obtaining digital movie broadcasting to central platform by internet
Power；According to the digital movie play authorization, pass through satellite reception digital cinema movies content-data and corresponding film authorization
File；According to the digital cinema movies play instruction of user, the authority of the digital cinema movies is called in, to authority
It is decrypted；According to the authority after the decryption, the substance film data are called in, the substance film is decrypted
Clear stream file is formed afterwards, is output to the broadcasting that video and audio output carries out film.
The digital film projector playback equipment, specifically includes:
Play control centre, for the digital film projector playback equipment entirety reception and playing process control
System determines digital movie play authorization and receives digital cinema movies content-data and corresponding film authorization text according to authorization
Part；Digital cinema movies content-data is played out according to user instructions；
Satellite reception module, for by the push of central platform described in satellite reception digital cinema movies content-data and
Corresponding film authority；
The Internet module is connect for establishing internet with the central platform, and it is flat to obtain the center by internet
The digital movie play authorization that platform is sent；Receive the control operational order of central platform；
Data decryption module, for authority and substance film data to be decrypted；
Video and audio output module is broadcast for forming clear stream file progress video and audio after the substance film is decrypted
It puts.
The digital film projector playback equipment, further includes:
GPS positioning module periodically passes through the Internet module for positioning to the digital film projector playback equipment
Regulator data transmission supervision department is monitored.
The digital film projector playback equipment, further includes:
Memory module, for storing the digital cinema movies content-data and corresponding film authority.
Using technical solution of the present invention, in such a way that satellite network+internet combines, using satellite reception module
With digital film projector playback equipment integrated design, allow user receive at the appointed time, everywhere substance film and
Authorization message increases the timeliness of film projection, reduces time and the cost of labor of local cinemas company copy film,
Especially for the traffic such as remote districts, mountain area and network under-developed area, movie playback play and content quantity are increased, it is economical
Benefit is significantly increased.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the digital film projector principle flow chart based on satellite reception in the embodiment of the present invention one；
Fig. 2 is that specific system realizes structural schematic diagram in the embodiment of the present invention one；
Fig. 3 is specific digital film projector playback equipment structural schematic diagram in the embodiment of the present invention one；
Fig. 4 is the digital film projector system structure diagram based on satellite reception in the embodiment of the present invention two.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
The digital film projector player of each embodiment of the present invention utilizes satellite mainly for rural area Mobile movies projection
The characteristics of network all standing, is supported in film using satellite reception module and digital film projector playback equipment integrated design
Hold and the satellite network of play authorization receives.After substance film and authority are encrypted by central platform, pass through
Satellite uplink station is emitted in the respective transponders of specified culminant star 6A satellite, the most areas of satellite covering China,
The digital film projector player of each embodiment of the present invention can carry out substance film and play authorization file by satellite antenna
Reception, storage, decryption, content play etc. operation.It can solve the defect of the prior art.
The scheme of each embodiment of the present invention, supports two kinds of contents of SARFT's digital program administrative center and company
It encrypts, the broadcasting of two kinds of contents of authority mode.
Fig. 1 is the digital film projector flow chart based on satellite reception in the embodiment of the present invention one.As shown in Figure 1, the base
In satellite reception digital film projector process the following steps are included:
Step 101, digital film projector playback equipment obtain digital movie play authorization to central platform by internet.
Digital film projector playback equipment is an integrated Broadcast Control terminal, is that the system of the present embodiment is playing end
Controlling terminal.Store the correspondence authority of the equipment in digital film projector playback equipment.It is recorded in this authority
The play right data of corresponding digital film projector playback equipment.For example, may include play the quantity of film, duration,
Corresponding film types title etc..The authority is the identity authority identification information of digital film projector playback equipment, is passed through
This authority can just determine the specific play right of the digital film projector playback equipment.
In general, needing to be written corresponding smart card for the authorization, as awarding for the digital film projector playback equipment
Weigh voucher.Central platform is according to the authority for authorizing determining respective digital motion picture film.Namely pass through internet
Mode obtains authority, is then store in smart card.
Digital film projector playback equipment can be connect by internet with central platform, then request the authorization text of itself
Part.This authority, which can according to need, to be changed.For example, user after continuing to pay dues corresponding authority will change.It awards
Power file sends corresponding digital film projector playback equipment from central platform by way of internet.Digital film projector is broadcast
It puts after equipment obtains and saves within a smart card.
Step 102, digital film projector playback equipment pass through satellite reception digital cinema movies content-data and corresponding
Film authority.
What digital cinema movies content existing SARFT's digital program administrative center that central platform is delivered provided
Content, Ye You company have content by oneself.
The substance film data that digital film projector playback equipment has been encrypted central platform by dedicated satellite antenna
It normally receives with film authority.The same content-data, central platform are at least delivered 3 wheels by satellite network, are protected
Card digital film projector broadcasting function is accurate, completely receives data.
The data received are stored into hard disk.The management in hard-disc storage space can pass through user's manual operation, central platform
It is managed by the operation that sends instructions under internet, broadcasting three kinds of modes of control centre's default storage management rule.
Step 103, according to the digital cinema movies play instruction of user, digital film projector playback equipment calls in the number
The authority of word motion picture film, is decrypted authority.
User inputs play instruction by digital film projector playback equipment, at this time, it may be necessary to call number film shadow first
The authority of piece.Since authority is encryption, authority will be decrypted in first choice.
The authority decryption that data decryption module had both supported digital program administrative center of SARFT(The State Administration of Radio and Television) to issue, is also propped up
It holds company and has the authority decryption that the central platform of film source issues by oneself.
Control centre is played after the movie playback instruction for receiving user, the authority of the film is called in from memory block,
Simultaneously call authority is decrypted, judge the film authority whether in validity period, whether be awarding for this terminal
The information such as power.
Step 104, according to the authority after the decryption, the substance film data are called in, to the substance film
Clear stream file is formed after being decrypted, and is output to the broadcasting that video and audio output carries out film.
If the authority of the film is effective, control centre is played from memory block and calls in the substance film data, simultaneously
Call data decryption module that substance film is decrypted.It plays control centre and the clear stream file formed after decryption is output to view
Audio output module carries out the broadcasting of film.
It plays control centre and periodically calls GPS positioning module, by mobile module or internet interface, terminal correlation is supervised
Pipe data are sent to digital program administrative center of SARFT(The State Administration of Radio and Television) and are monitored.
Further, digital film projector playback equipment by internet to the digital cinema movies content-data and
Corresponding film authority is repaired and is re-downloaded.That is, when the number electricity stored in digital film projector playback equipment
When the problem of damaging occur in shadow substance film data and corresponding film authority or other influences play, need to center
Platform reacquires the file.At this moment, it is less suitably, therefore, it is possible to pass through internet that electrophoresis satellite, which reissue,
Mode reissues corresponding document.
Digital cinema movies content-data and corresponding film authority integrality and correctness de are monitored, it can also
To be periodically monitored by central platform by internet.
Technical solution of the present invention, in such a way that satellite network+internet combines, using satellite reception module sum number
Word motion picture projection playback equipment integrated design, allow user at the appointed time, receive substance film and authorization everywhere
Information increases the timeliness of film projection, reduces time and the cost of labor of local cinemas company copy film, especially
For the traffic such as remote districts, mountain area and network under-developed area, movie playback play and content quantity, economic benefit are increased
It is significantly increased.
As shown in Fig. 2, specifically including central platform, the center DMCC for one of the present embodiment concrete implementation system structure
Platform, satellite digital publishing platform and digital film projector player (equipment).Specific connection connection is referred to Fig. 2, leads to
Satellite is crossed to connect with interconnection mobile network.
As shown in figure 3, being the specific digital film projector playback equipment structural schematic diagram of the present embodiment, wherein include
Digital decrypted module 1, mobile module 2, memory module 3, liquid crystal panel module 4, GPS positioning module 5, power supply 6, fan 7, view sound
Frequency output module 8, satellite reception module 9, internet interface 10 and broadcasting control centre 11.
Wherein, satellite reception module important technological parameters:
Modulation system: DVB-S2, QPSK/8PSK；DVB-S QPSK；
Transformat: MPEG-2TS
Symbol rate: 2-45MS/s
Frequency range: 950MHz~2150MHz
Incoming signal level: -65dBm~-30dBm
RF input impedance: 75 Ω
Function declaration:
It is stored as large capacity 500G hard disk, can be stored close to tens film sources.
Decryption decoding in real time is carried out to the content-data of encryption.Central platform uses PKI/CA authentication system, and use is close
Key length be 128, AES128-CBC algorithm for encryption that digest algorithm is international standard MD5.
Built-in GPS and Beidou navigation bimodulus positioning chip, positioning accuracy are more acurrate.
Built-in high-performance GPRS module can support GRPS and WCDMA 3G network, supervision information back more stable quickly.
Internet interface is 10/100Mbps speed adaptive.
Video uses high quality, efficient digital decoding technology and HD video output interface DVI, 1080I60 output,
For image quality effect up to the surprising resolution ratio of 1920*1080, design parameter is as follows:
MPEG-4 coding, the customized packing format of broadcasting and TV
1920*1080 resolution ratio
Sample format is not less than 4:2:0 (YPrPb), and quantisation depth is not less than 8bit
Frame rate 24.000Hz or 25.000Hz
Audio is exported with 5.1 channel analog audios, directly brings the acoustics of true shock, and can be in this mode
Lower audio mixing to two-channel exports, and design parameter is as follows:
AC3 audio coding
Support 5.1 sound channels and can DownMix to three-dimensional voice output
Sample frequency 48KHZ
Quantisation depth 16bit or 24bit
Every road rated output voltage is 300mV ± 30mV (reference voltage -20dBfs@1000Hz)
It plays control centre and chip is handled using embedded high-performance, low in energy consumption, stability is high, adverse environment resistant.
Decryption decoding in real time is carried out to the digital movie release of encryption.
Forbid F.F., rewind when broadcasting, play midway and forbid intercutting other contents, forbids the film for storing or keeping in decryption
File or segment, image output interface DVI support broadcasting and TV custom protocol, can recognize specific projection instrument, have anti-piracy and prohibit
Only broadcast unauthorized program function.
Support power-off play, can the continued broadcasting from breakpoint, have accurate film play and play log management.
The broadcasting of increment advertisement, directly the economic benefit income of increase projectionist can be carried out before playing film.
A variety of film prints modes (single portion, multi-section, automatic by card), greatly facilitate needed for user.
Program upgrading is carried out by USB mobile device, convenient for expanding follow-up function.
It supports background music, the connection reliability of projector and audio interface can be tested before broadcasting film.
Support HDCP copyright protection protocol.
Standard 2U cabinet, chassis body are integrally formed using steel plate bending, operating voltage 100-240V/50HZ, work temperature
- 5 DEG C -45 DEG C of degree, durable, antidetonation are very suitable to the use of the spread of voltage occasion such as rural area.
Using high reliability device:
Interface navigation screen can work normally under wide temperature, and brightness is soft, color floridity, and operation interface is pure and fresh to be illustrated, visual angle
Extensively, it is convenient for multidirectional operation.
Metal key-press design is durable.
Video output terminal locking mechanism avoids equipment movement that terminal is caused to loosen.
Good readiness control circuit avoids hard disk damage caused by shutting down roughly, greatly extension service life of equipment.
Critical file is set as read-only, is stored in nonvolatile storage, and vital document has backup, to prevent powering off suddenly
Or file caused by improper power-off is lost.
Special file duplication technology shortens copy time, copies one at 10 minutes or so.
Performance indicator:
Front panel liquid crystal display
4.3 inches, 480x272 dot matrix color TFT-LCD screen
Brightness: 250cd/m2,12 visual angles
Key is 8 groups of interface operational and controlled key buttons, 1 group of switching on and shutting down control button (using soft-off technology)
Meet ergonomic designs, it is easy to operate
LED light is highlighted indicator light, accurately shows power supply status, disk read-write state
2.0 interface of USB supports 480Mbps high-speed transfer, compatible USB1.1 standard
Intelligent card interface use contact kilocalorie scheme, driven using ISO7816, smart card contact with overheating protection,
Short-circuit protection and overload protection
Mainboard CPU frequency 700MHZ
Integrated UART, SmartCard, USB
DRM protection and low power consumption control
Using 32 bit wide high speed DRR2 512MB
FLASH capacity 128MB/256MB, SLC NAND FLASH
Hard-disk interface is SATA 1.5Gbps hard-disk interface, and transmission high speed is stablized, standard configuration 500G hard disk
Stand-by circuit is controlled by single-chip microcontroller I2C, is communicated by I2C bus and master chip.
Clock is low-power consumption independent clock chip, guarantees battery.
Rear panel includes video output DVI interface, supports 1080I60 output, supports HDCP agreement；Support broadcasting and TV customized
Transmission protection agreement；
Audio output interface is supported digital audio optical fiber, is coaxially exported, 5.1 sound channels of simulation, RCA interface, and every road is specified defeated
Voltage is 300mV ± 30mV out, 5.1 sound channels can audio mixing to stereo.
Network interface is 10/100Mbps speed adaptive, and when digital program center accreditation card uses.
Power input AC 110-240V 50Hz, power consumption 40W
Operating temperature: 5 DEG C -45 DEG C
Working relative humidity: 20-80 (%RH)
The embodiment of the present invention has specific finished product, meets the GY/T 251-2011 " digital movies mobile playing of General Bureau of Radio, Film and Television
System specifications and measurement method " " digital movies mobile playing supervises information GPS/GPRS interface skill with GD/J 029-2010
Art requires and test method (provisional) ", pass through the corresponding copyright protection film source of digital program administrative center of SARFT(The State Administration of Radio and Television)
Docking test.Meet " the digital distribution System Technical Specification based on satellite technology " of space flight digital media Co., Ltd simultaneously.
Present invention employs in such a way that satellite network+internet combines, using satellite reception module and number electricity
Shadow show playback equipment integrated design, allow user at the appointed time, receive substance film and authorization message everywhere,
The timeliness for increasing film projection reduces time and the cost of labor of local cinemas company copy film, especially for
The traffic such as remote districts, mountain area and network under-developed area, increase movie playback play and content quantity, and economic benefit has aobvious
It writes and improves.
In order to realize that above-mentioned process, technical solution of the present invention also provide the digital film projector system based on satellite reception,
As shown in figure 4, the digital film projector system based on satellite reception of being somebody's turn to do includes that central platform 21 and several digital film projectors are broadcast
Put equipment 22, wherein
The central platform 21, it is corresponding for generating and sending the digital film projector playback equipment by internet
Digital movie play authorization；The request of digital film projector playback equipment is pushed by satellite according to the digital movie play authorization
Digital cinema movies content-data and corresponding film authority；
The digital film projector playback equipment 22 is played for obtaining digital movie to central platform 21 by internet
Authorization；According to the digital movie play authorization, awarded by satellite reception digital cinema movies content-data and corresponding film
Weigh file；According to the digital cinema movies play instruction of user, the authority of the digital cinema movies is called in, to authorization text
Part is decrypted；According to the authority after the decryption, the substance film data are called in, the substance film is solved
Clear stream file is formed after close, is output to the broadcasting that video and audio output carries out film.
The digital film projector playback equipment 22, specifically includes:
Play control centre 221, for the digital film projector playback equipment entirety reception and playing process into
Row control determines digital movie play authorization and receives digital cinema movies content-data and corresponding film authorization according to authorization
File；Digital cinema movies content-data is played out according to user instructions；
Satellite reception module 222, for the digital cinema movies content number by the push of central platform described in satellite reception
According to corresponding film authority；
The Internet module 223 is connect for establishing internet with the central platform, obtains the center by internet
The digital movie play authorization that platform is sent；Receive the control operational order of central platform；
Data decryption module 224, for authority and substance film data to be decrypted；
Video and audio output module 225 carries out video and audio for forming clear stream file after the substance film is decrypted
It plays.
Further include:
GPS positioning module 226 periodically passes through internet for positioning to the digital film projector playback equipment
Regulator data transmission supervision department is monitored by module.
Further include:
Memory module 227, for storing the digital cinema movies content-data and corresponding film authority.
In conclusion using technical solution of the present invention, in such a way that satellite network+internet combines, using defending
Star receiving module and digital film projector playback equipment integrated design, receive user at the appointed time, everywhere
Substance film and authorization message increase the timeliness of film projection, reduce the time of local cinemas company copy film
And cost of labor increases movie playback play and interior especially for the traffic such as remote districts, mountain area and network under-developed area
Hold quantity, economic benefit is significantly increased.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.)
Formula.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of digital film projector method based on satellite reception, which comprises the following steps:
Digital film projector playback equipment obtains digital movie play authorization to central platform by internet；
According to the digital movie play authorization, digital film projector playback equipment passes through satellite reception digital cinema movies content
Data and corresponding film authority；
According to the digital cinema movies play instruction of user, digital film projector playback equipment calls in the digital cinema movies
Authority is decrypted in authority；
According to the authority after the decryption, the substance film data are called in, rear shape is decrypted to the substance film
At clear stream file, it is output to the broadcasting that video and audio output carries out film.
2. a kind of digital film projector method based on satellite reception according to claim 1, which is characterized in that the number
After word motion picture projection playback equipment obtains digital movie play authorization to central platform by internet, comprising:
Corresponding smart card is written into the authorization, the authorized certificate as the digital film projector playback equipment；
Central platform is according to the authority for authorizing determining respective digital motion picture film.
3. a kind of digital film projector method based on satellite reception according to claim 1, which is characterized in that the number
Word motion picture projection playback equipment is specific to wrap by satellite reception digital cinema movies content-data and corresponding film authority
It includes:
The digital cinema movies content-data encrypted and film authority are pushed number by satellite by the central platform
Motion picture projection playback equipment；
The process of the push at least carries out 3 times；
The digital film projector playback equipment compares 3 received digital cinema movies content-datas and film authority
After stored.
4. a kind of digital film projector method based on satellite reception according to claim 3, which is characterized in that the side
Method further include:
The digital cinema movies content-data and film authority of the storage are logical by user's manual operation, central platform
It crosses under internet and sends instructions operation or central platform default storage management rule is managed.
5. a kind of digital film projector method based on satellite reception according to claim 1, which is characterized in that the side
Method further include:
Digital film projector playback equipment calls in the authorization of the film after receiving the digital cinema movies play instruction of user
Authority is decrypted in file；
Determine the film authority be validity period, be this terminal authorization message after, carry out corresponding play operation.
6. a kind of digital film projector method based on satellite reception according to claim 1, which is characterized in that the side
Method further include:
Digital film projector playback equipment is awarding the digital cinema movies content-data and corresponding film by internet
Power file is repaired and is re-downloaded.
7. a kind of digital film projector system based on satellite reception, which is characterized in that including central platform and several number electricity
Shadow shows playback equipment, wherein
The central platform, for generating and sending the corresponding number electricity of the digital film projector playback equipment by internet
Shadow play authorization；The number of digital film projector playback equipment request is pushed by satellite according to the digital movie play authorization
Motion picture film content-data and corresponding film authority；
The digital film projector playback equipment, for obtaining digital movie play authorization to central platform by internet；Root
According to the digital movie play authorization, pass through satellite reception digital cinema movies content-data and corresponding film authority；
According to the digital cinema movies play instruction of user, the authority of the digital cinema movies is called in, authority is carried out
Decryption；According to the authority after the decryption, the substance film data are called in, rear shape is decrypted to the substance film
At clear stream file, it is output to the broadcasting that video and audio output carries out film.
8. a kind of digital film projector system based on satellite reception according to claim 7, which is characterized in that the number
Word motion picture projection playback equipment, specifically includes:
Play control centre, for the digital film projector playback equipment entirety reception and playing process control,
It determines digital movie play authorization and digital cinema movies content-data and corresponding film authority is received according to authorization；Root
Digital cinema movies content-data is played out according to user instruction；
Satellite reception module, for the digital cinema movies content-data and correspondence by the push of central platform described in satellite reception
Film authority；
The Internet module is connect for establishing internet with the central platform, is obtained the central platform by internet and is sent out
The digital movie play authorization sent；Receive the control operational order of central platform；
Data decryption module, for authority and substance film data to be decrypted；
Video and audio output module carries out video and audio broadcasting for forming clear stream file after the substance film is decrypted.
9. a kind of digital film projector system based on satellite reception according to claim 7 or 8, which is characterized in that institute
State digital film projector playback equipment, further includes:
GPS positioning module periodically passes through the Internet module for phase for positioning to the digital film projector playback equipment
Supervision data transmission supervision department is closed to be monitored.
10. a kind of digital film projector system based on satellite reception according to claim 8, which is characterized in that described
Digital film projector playback equipment, further includes:
Memory module, for storing the digital cinema movies content-data and corresponding film authority.
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| CN201810870902.9A CN108966037A (en) | 2018-08-02 | 2018-08-02 | A kind of digital film projector method and system based on satellite reception |
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| CN201810870902.9A CN108966037A (en) | 2018-08-02 | 2018-08-02 | A kind of digital film projector method and system based on satellite reception |
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| CN108966037A true CN108966037A (en) | 2018-12-07 |
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| CN111680269A (en) * | 2020-06-09 | 2020-09-18 | 上海幕革科技有限公司 | Method for controlling authority of digital film source projection equipment |
| CN112637637A (en) * | 2020-12-15 | 2021-04-09 | 上海文广科技（集团）有限公司 | Operation system and method for rural digital movies |
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