CN101867783A - Distributed buffer type audio/video on-demand system in airplane and operation method thereof - Google Patents
Distributed buffer type audio/video on-demand system in airplane and operation method thereof Download PDFInfo
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- CN101867783A CN101867783A CN 201010194770 CN201010194770A CN101867783A CN 101867783 A CN101867783 A CN 101867783A CN 201010194770 CN201010194770 CN 201010194770 CN 201010194770 A CN201010194770 A CN 201010194770A CN 101867783 A CN101867783 A CN 101867783A
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Abstract
The invention discloses a distributed buffer type audio/video on-demand system in an airplane, comprising mutually connected components through a data exchange network, i.e. a media server, a plurality of seat electronic boxes and a plurality of play terminals. The media server is used for providing playable data, the seat electronic boxes are used for receiving the playable data of the media server through the exchange equipment and storing the playable data in a local hard disk, each play terminal is respectively connected with an adjacent seat electronic box through a data bus, provides a plurality of interfaces and sends a request to the seat electronic box by interface operation, and the seat electronic box is used for receiving the request, restoring the playable data into audio and video signals and playing the audio and video signals through the play terminal. In the invention, service is locally provided by the display equipment, and the service provided by the system is not influenced by the failed data exchange network so that the data exchange network is free from redundancy design. The invention also discloses an operation method thereof.
Description
Technical field
The present invention relates in aircraft, to provide the operation method of system and this system of audio/video on-demand.
Background technology
Airline provides audio/video on-demand system for the passenger aboard, and as shown in Figure 1, this system comprises media server, switching equipment, seat electronic box, display device and joystick.Airline provides display device and joystick for each seat, and each passenger can select and watch the program of own program request.The seat electronic box provides the audio frequency and video passage for a seat, and the concrete quantity of a seat is unrestricted, can have only the seat of a first-class cabin, also can be one or three economy seats.At least one cover of the every airplane of media server.Switching equipment can dynamic-configuration according to the bandwidth demand of data switching networks.All equipment is all only represented function, represents physical equipment not, and for example display device is if touch-screen, and then joystick can not need, and the function of joystick is provided by touch-screen.
After aircraft steadily took off, the passenger can open display device, saw the navigation page of audio/video on-demand system, and the schematic diagram of the navigation page must be noted that different and different that the navigation page can be according to aircraft and airline as shown in Figure 2, and Fig. 2 only does signal.
Behind the film if the passenger selects to navigate in the page, enter the next stage navigation page shown in Figure 3, the passenger can select a film wherein to play.
Audio/video on-demand system can customize to provide and include but not limited to audio program, video frequency program, information, recreation etc.Audio program includes but not limited to music, soundly reads aloud, drama etc.Video frequency program includes but not limited to film, TV, advertisement etc.
The prior art audio/video on-demand system is realized by the mode of real-time Transmission audio/video flow.Audio/video flow refers to the bandwidth that needs in the transmission in order to reduce, with the audio frequency and video compression algorithm original audio-video signal is compressed, and carries on IP network with transport stream format then.The audio frequency and video compression algorithm includes but not limited to MPEG-4 or compression algorithm H.264.Transport stream format includes but not limited to the TS form of ISO/IEC 13818 standard definitions.Audio-video signal is compressed.Before broadcast, audio/video flow must be reduced into original audio-video signal.
Prior art is by data switching networks, and the real-time transport protocol (rtp) that defines with RFC1889 is sent to display device with audio/video flow, and display device decompresses audio/video flow and is reduced into primary signal and broadcast.
The exemplary flow of method is as shown in Figure 4:
1. display device starts;
2. the HTTP request message of display device transmission RFC2616 standard definition is asked the navigation page to media server;
3. media server returns http response message and gives display device, and navigation page bread is contained in the http response message;
4. display device is resolved the navigation page, and the page that will navigate is presented to the passenger;
5. the passenger selects a film to watch on the navigation page;
6. media server returns http response message and gives display device, the information of depositing of carrying this film in the media server;
7. the RTSP request message of display device transmission RFC2326 definition is asked broadcast program to media server;
8. media server returns the RTSP response message and gives display device;
9. display device receives the audio/video flow of real-time transport protocol (rtp) carrying;
10. audio/video flow is reduced into vision signal and is shown to the passenger.The difference of audio/video flow and vision signal is, in order to reduce the bandwidth that needs in the transmission, adopt usually MPEG-4 or H.264 scheduling algorithm audio-video signal is compressed.Must be before broadcast with the audio-video signal reduction of compression.
By above-mentioned steps as seen, prior art all provides the real-time navigation page and audio-video signal and transmits, and has only as the passenger and puts sowing time, and these signals just are sent to display device from media server.
The functional module of equipment that prior art provides as shown in Figure 5.Wherein, the display device of seat end comprises page display module, HTTP client modules, RTSP module, dhcp client module and IP module; Server end comprises: http server module, RTSP module, Dynamic Host Configuration Protocol server module and IP module.
In addition, network equipment failure or line fault may make whole data switching networks at a standstill, and therefore, existing data switching networks needs Redundancy Design.For example increase the switch of backup, the router of backup, the network segment of backup is divided.These can make that all the cost of data switching networks increases greatly.
Summary of the invention
Purpose of the present invention is to provide a kind of incomplete dependence data switching networks, and need not the data switching network is done the audio/video on-demand system of Redundancy Design.
For achieving the above object, the invention provides the distributed buffer type audio/video on-demand system in a kind of aircraft, it comprises by the interconnective media server of data switching networks, a plurality of seat electronic box and a plurality of playback terminal: wherein, media server is used to provide the data that can play; But be stored in its local hard drive after the played data of a plurality of seat electronic boxs by switching equipment receiving media server; Playback terminal is connected to adjacent seat electronic box by data/address bus respectively, it provides a plurality of interfaces, by operation, send request to the seat electronic box, but the seat electronic box is received after the request and described played data to be reduced to sound, vision signal and to play by playback terminal to the interface.
Preferably, after playback terminal started, the seat electronic box sent update request by switching equipment to media server, and is having under the situation of update content, and the down loading updating content is to local hard drive.
Preferably, playback terminal comprises display device and the joystick that is connected to the seat electronic box.
Preferably, also comprise the switching equipment that is connected between media server and the seat electronic box, this switching equipment is used for the data of media server stores are exchanged to the seat electronic box.
The present invention also provides a kind of operation method of above-mentioned distributed tones video on-demand system, and it comprises
Start playback terminal;
Playback terminal sends a request message to the seat electronic box, the request navigation page;
The seat electronic box returns response message and gives playback terminal, and navigation page bread is contained in this response message;
Playback terminal is resolved the navigation page, and the page that will navigate is presented to the passenger;
The passenger selects the data that can play on the navigation page;
The seat electronic box returns response message and gives playback terminal, and the reduction of data that can play is sound, vision signal, and beginning sends to playback terminal.
Preferably, after playback terminal started, the seat electronic box sent update request by switching equipment to media server at sound, when vision signal is play.
All audio-video signals and the navigation page all download to the local hard drive of each seat electronic box from media server in advance among the present invention.Each seat electronic box provides order program service for the display device of a seat.One seat can comprise a seat, also can comprise a plurality of seats placed side by side.The present invention is not subjected to the restriction of concrete numbers of seats in the seat.
Playback terminal reads the navigation page after starting from the hard disk of seat electronic box, present to the passenger, and the passenger makes the program request audio/video program in the drilling of the navigation page.After the passenger determined program request, all contents all read and are presented on from the hard disk of seat electronic box and watch to the passenger on the display device or listen to.The content that the passenger watches need not to obtain in real time from media server.
Compared with prior art, advantage of the present invention is:
At first, not influence of the fault system of data switching networks provides service.Because all the elements have all downloaded to display device, when data switching networks broke down, the passenger still can use the audio/video on-demand service, and these services all provide by display device this locality.
Secondly, data switching networks does not need Redundancy Design.Prior art can adopt the network redundancy design for the fault effects system that prevents network provides service, for example increases the switch of backup, the router of backup, and the network segment of backup is divided.
Once more, the congested experience that does not influence the user of data switching networks.Prior art takes place when congested when data switching networks, and the user can see that picture stagnates and mosaic, and user experience is very poor.These services all provide the congested experience that does not influence the user of data switching networks among the present invention by display device this locality.
Description of drawings
Fig. 1 shows the schematic diagram of audio/video on-demand system on the existing aircraft.
Fig. 2 shows the schematic diagram of the navigation page of video on-demand system.
Fig. 3 shows the film-on-demand page schematic diagram of the navigation page.
Fig. 4 shows the schematic flow sheet of prior art film-on-demand.
Fig. 5 A shows the module diagram of display device in the prior art.
Fig. 5 B shows the module diagram of media server in the prior art.
Fig. 6 A shows the schematic diagram of audio/video on-demand system of the present invention.
Fig. 6 B shows the another kind of structured flowchart of audio/video on-demand system of the present invention.
Fig. 7 shows the schematic flow sheet of film-on-demand of the present invention.
Fig. 8 A shows the module diagram of the display device among the present invention.
Fig. 8 B shows the module diagram of the seat electronic box among the present invention.
Fig. 8 C shows the module diagram of the media server among the present invention.
Embodiment
The present invention relates to a kind of distributed buffer type audio/video on-demand system, it is by being provided with brand-new seat electronic box, causing network congestion in the flow set of having avoided in traditional centralized network architecture producing, and network or equipment fault and needing to cause problem such as Redundancy Design.
With reference to Fig. 6 A, 6B, the basic framework of the distributed tones video on-demand system among the present invention comprises by interconnective at least one media server 10 of data switching networks, switching equipment 20 and a plurality of seat electronic box 30, wherein, on the hardware, media server 10 can comprise a central controller, by the coupled a plurality of hard disks of bus, but in hard disk, store played data, for example film or music; And Network Interface Unit, this media server should can provide IP module and network download service module at least.
Can also comprise switching equipment 20, it is used for connecting between media server 10 and seat electronic box 30.It can be conventional switching equipment such as router.
Seat electronic box 30 should comprise a processor at least on hardware, be connected at least one local hard drive with this processor by local bus, and a Network Interface Unit that is connected by local bus with processor; This processor should move a program at least, shown in Fig. 8 B, but this program can be by switching equipment from media server download/renewal played data to local hard drive, also should provide IP (Internet protocol) service to be used for connecting with media server, download module is used for downloading/new data more from media server.This processor should move another program, and operation be downloaded/be upgraded to this program should be able under the situation of the request of receiving playback terminal 40; Perhaps after the request of receiving playback terminal 40, the data recovery that can play is audio frequency, video flowing and responds to playback terminal 40 in the mode of sound, vision signal.
Media server shown in Fig. 8 C, comprises the IP module of communicating by letter with the seat electronic box, and the network download server module of corresponding seat electronic box download request.
With reference to Fig. 7, the operation method of said system is as follows:
Display device starts 101;
Whether communicate by letter with media server, detecting the navigation page and media content has renewal 102.
If have, just need the content of renewal to the hard disk of seat electronic box from the media server download;
Display device starts 103;
Display device sends the HTTP request message to the seat electronic box, the request navigation page 104;
The seat electronic box returns http response message and is contained in the http response message 105 for display device, navigation page bread;
Display device is resolved the navigation page, and the page that will navigate is presented to passenger 106;
The passenger selects a film to watch on the navigation page; The information of selecting is notified to seat electronic box 107 by passenger's joystick;
The seat electronic box converts movie contents to vision signal and exports to display device.The difference of audio/video flow and vision signal is, in order to reduce the bandwidth that needs in the transmission, adopt usually MPEG-4 or H.264 scheduling algorithm audio-video signal is compressed.Must be before broadcast with the audio-video signal reduction 108 of compression.
Compared with prior art, advantage of the present invention is:
At first, not impact of the fault system of data switching networks provides service. Because all the elements have all downloaded to display device, when data switching networks broke down, the passenger still can use the audio/video on-demand service, and these services all provide by display device this locality.
Secondly, data switching networks does not need Redundancy Design. Prior art provides service for the fault effects system that prevents network, and meeting Adoption Network Redundancy Design for example increases the switch that backs up, the router of backup, and the network segment of backup is divided.
Again, the congested experience that does not affect the user of data switching networks. Prior art takes place when congested when data switching networks, and the user can see that picture stagnates and mosaic, and the user experiences very poor. These services all provide the congested experience that does not affect the user of data switching networks among the present invention by display device this locality.
Claims (6)
1. the distributed buffer type audio/video on-demand system in the aircraft, it comprises by the interconnective media server of data switching networks, a plurality of seat electronic box and a plurality of playback terminal: it is characterized in that: media server is used to provide the data that can play; But be stored in its local hard drive after the played data of a plurality of seat electronic boxs by switching equipment receiving media server; Playback terminal is connected to adjacent seat electronic box by data/address bus respectively, it provides a plurality of interfaces, by operation, send request to the seat electronic box, but the seat electronic box is received after the request and described played data to be reduced to sound, vision signal and to play by playback terminal to the interface.
2. the distributed buffer type audio/video on-demand system in the aircraft according to claim 1, it is characterized in that: after playback terminal starts, the seat electronic box sends update request by switching equipment to media server, and having under the situation of update content, the down loading updating content is to seat electronic box local hard drive.
3. the distributed buffer type audio/video on-demand system in the aircraft according to claim 1 is characterized in that: playback terminal comprises display device and the joystick that is connected to the seat electronic box.
4. the distributed buffer type audio/video on-demand system in the aircraft according to claim 1, it is characterized in that: also comprise the switching equipment that is connected between media server and the seat electronic box, this switching equipment is used for the data of media server stores are exchanged to the seat electronic box.
5. the present invention also provides the operation method of the distributed buffer type audio/video on-demand system in aircraft any one in a kind of claim 1 to 4, and it comprises
Start playback terminal;
Playback terminal sends a request message to the seat electronic box, the request navigation page;
The seat electronic box returns response message and gives playback terminal, and navigation page bread is contained in this response message;
Playback terminal is resolved the navigation page, and the page that will navigate is presented to the passenger;
The passenger selects the data that can play on the navigation page;
The seat electronic box returns response message and gives playback terminal, and the reduction of data that can play is sound, vision signal, and beginning sends to playback terminal.
6. method according to claim 5, wherein, after playback terminal started, the seat electronic box sent update request by switching equipment to media server at sound, when vision signal is play.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010194770 CN101867783A (en) | 2010-06-08 | 2010-06-08 | Distributed buffer type audio/video on-demand system in airplane and operation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010194770 CN101867783A (en) | 2010-06-08 | 2010-06-08 | Distributed buffer type audio/video on-demand system in airplane and operation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106170967A (en) * | 2014-12-30 | 2016-11-30 | 华为技术有限公司 | A kind of media asset delivery Apparatus and method for |
| CN107862578A (en) * | 2017-11-15 | 2018-03-30 | 中国航空无线电电子研究所 | A kind of passenger airplane form ordering system that entertainment content customization is provided |
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| CN1726716A (en) * | 2002-05-14 | 2006-01-25 | 泰利斯电子设备公司 | Method for controlling an in-flight entertainment system |
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| CN1726716A (en) * | 2002-05-14 | 2006-01-25 | 泰利斯电子设备公司 | Method for controlling an in-flight entertainment system |
| CN1792046A (en) * | 2003-05-21 | 2006-06-21 | 波音公司 | High bandwidth open wired network |
| CN1604644A (en) * | 2004-11-04 | 2005-04-06 | 复旦大学 | A Digital TV Broadcasting System with Reservation and Storage Functions |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106170967A (en) * | 2014-12-30 | 2016-11-30 | 华为技术有限公司 | A kind of media asset delivery Apparatus and method for |
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| CN107862578A (en) * | 2017-11-15 | 2018-03-30 | 中国航空无线电电子研究所 | A kind of passenger airplane form ordering system that entertainment content customization is provided |
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Application publication date: 20101020 |