WO2010140376A1 - コンテンツアップロードシステムおよびコンテンツ配信サーバ - Google Patents
コンテンツアップロードシステムおよびコンテンツ配信サーバ Download PDFInfo
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- WO2010140376A1 WO2010140376A1 PCT/JP2010/003731 JP2010003731W WO2010140376A1 WO 2010140376 A1 WO2010140376 A1 WO 2010140376A1 JP 2010003731 W JP2010003731 W JP 2010003731W WO 2010140376 A1 WO2010140376 A1 WO 2010140376A1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N7/17309—Transmission or handling of upstream communications
- H04N7/17336—Handling of requests in head-ends
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
- H04H20/61—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast
- H04H20/62—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast for transportation systems, e.g. in vehicles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/214—Specialised server platform, e.g. server located in an airplane, hotel, hospital
- H04N21/2146—Specialised server platform, e.g. server located in an airplane, hotel, hospital located in mass transportation means, e.g. aircraft, train or bus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2181—Source of audio or video content, e.g. local disk arrays comprising remotely distributed storage units, e.g. when movies are replicated over a plurality of video servers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- 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
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- 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
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
- H04N21/26291—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists for providing content or additional data updates, e.g. updating software modules, stored at the client
Definitions
- the present invention relates to a content upload system and a content distribution server for uploading video and audio contents from outside the aircraft to a server for in-flight passenger seat distribution in an in-flight entertainment system.
- Aircraft International passenger aircraft
- aircraft are equipped with an in-flight entertainment system in order to provide entertainment services to passengers during long flights.
- a dedicated display terminal is installed on the back of the backrest of each seat, and headphones can be connected to each seat. This allows passengers to enjoy video content, audio content, or games during the flight.
- a content distribution server is installed in the aircraft.
- Fig. 6 shows the basic configuration of a conventional in-flight entertainment system.
- Display terminals 221 to 223 are installed in the respective seats 211 to 213, and headphones 231 to 233 are simultaneously connected thereto.
- the video / audio content is stored in the content distribution server 201 and transmitted to the display terminals 221 to 223 and the headphones 231 to 233 via the network 240. Since the audio / video content flowing on the network 240 is encoded to compress the amount of information, it is incorporated in the content processing terminals 251 to 253 immediately before being reproduced by the display terminals 221 to 223 and the headphones 231 to 233. Is decoded by a video / audio decoder (not shown).
- these video and audio contents must be updated to new contents every predetermined period.
- a method of updating the video / audio content for example, a video / audio content packaged in an optical disc, a hard disk, a tape, or the like is carried into the apparatus and physically replaced, or electronically replaced (overwritten) via a network.
- a recent content distribution server is usually composed of a large-capacity hard disk, in this case, the latter electronic rewriting by a network is a common means.
- Rewriting via the network is usually uploaded from the content storage server on the ground while the aircraft is parked at the airport.
- Each airport facility has a content storage server that holds the same video / audio content, and the aircraft can receive the required video / audio content at any airport.
- the time required for uploading is determined by the total capacity of the updated video and audio content and the network speed. For example, if the total content capacity is 100 GB and the communication speed is 100 Mbps, the upload time is about 2 hours and 13 minutes. Parking time is determined by the time required for aircraft maintenance and loading / unloading of cargo, and is not determined with priority on upload time. Accordingly, when the capacity of content to be uploaded increases, it may be difficult to complete uploading of necessary content during parking. Furthermore, from the viewpoint of improving the serviceability of the in-flight entertainment system, the total capacity of this video / audio content will continue to increase. Therefore, it is expected that it will become more difficult to complete the update of the audiovisual content while parked at one airport.
- Patent Document 1 shows a method as a countermeasure against a case where content writing to a mobile body (aircraft in the present invention) is not completed during a connection time with a predetermined base station (airport facility in the present invention).
- a predetermined base station airport facility in the present invention.
- the partial contents held by each mobile unit are different from each other. It is shown to communicate to complement.
- mobiles that currently have only 50% of the required amount of content will reach 70% with content supplementation from the first mobile unit encountered, and will reach 80% with content supplementation from the next mobile unit encountered. If this is repeated, it can be considered that the number of communication between mobiles reaches 100%.
- the content held in each mobile body gradually increases to a complete amount.
- a content upload system is a content distribution server that is installed in an aircraft and distributes video and audio content in the aircraft, and a plurality of airports where the aircraft is parked.
- the content distribution server is composed of a plurality of content storage servers that transmit audio content.
- the content distribution server is a video / audio content that is not yet owned by the content storage server while the aircraft is parked at the airport. Is selectively written.
- a content distribution server of the present invention is a content distribution server that receives video / audio content from a content storage server installed at an airport via a network and distributes the video / audio content in an aircraft, and records the video / audio content.
- the recording unit, the content collation unit that collates the video / audio content in the recording unit with the video / audio content received from the content storage server, and the video / audio content determined to be unrecorded in the recording unit by the content collation unit And a recording control unit for writing in the recording unit.
- FIG. 1 is a diagram schematically showing a flight path of an aircraft and an airport where the aircraft is parked in Embodiment 1 of the present invention.
- FIG. 2 is a block diagram showing a basic configuration example of the content upload system according to Embodiment 1 of the present invention.
- FIG. 3 is a schematic diagram showing a state in which content is written to the content distribution server in Embodiment 1 of the present invention.
- FIG. 4 is a block diagram showing the internal configuration of the content distribution server according to Embodiment 1 of the present invention.
- FIG. 5 is a timing diagram of a transmission signal when the entire content C-ALL is periodically and repeatedly uploaded in the content storage server according to the second embodiment of the present invention.
- FIG. 6 is a block diagram showing a basic configuration of a conventional in-flight entertainment system.
- FIG. 1 is a diagram schematically showing a flight path of an aircraft 200 and airports 101 to 103 parked in the first embodiment of the present invention
- FIG. 2 shows a basic content upload system in the first embodiment of the present invention. It is a block diagram which shows the example of a structure.
- FIG. 1 shows an example in which the aircraft 200 departs from the airport 101 and returns to the airport 101 via the airport 102 and the airport 103. While the aircraft 200 is parked at the airports 101, 102, and 103, the video and audio content is uploaded while maintaining the aircraft and loading and unloading cargo.
- aircraft 200 when not distinguishing between individual aircrafts
- airport buildings 301 to 303 are installed in each airport, and the airport building facilities 301 are provided with a content storage server 311 that stores video and audio content for upload and an antenna 321 that wirelessly transmits video and audio content.
- content transmission and storage from the content storage servers 311 to 313 to the content distribution servers 201a to 201c are expressed as “upload”.
- the content distribution server 201a installed in the aircraft 200a is connected to the content storage server 311 via a wireless network such as a high-speed wireless LAN (Local Area Network), and the content received by the antenna 205a is used as needed. Accumulated in the content distribution server 201a. The same applies to the other aircraft 200b and 200c.
- the content accumulation server 311 continues to cyclically transmit the content to be uploaded that it has accumulated from the beginning to the end, and the content distribution servers 201a to 201c installed in the three aircrafts 200a to 200c are currently transmitting. It is configured to select and import necessary contents from among the contents. This eliminates the need for complicated processing such as negotiation between the content storage server 311 and the content distribution servers 201a to 201c, so that the content upload system can be configured easily and inexpensively.
- the aircraft 200a to 200c can upload the content anywhere while parked. Furthermore, if the content storage server 311 uploads content to the content distribution servers 201a to 201c by broadcasting, it can be simultaneously uploaded to the three aircrafts 200a to 200c. This makes it possible to upload content using the parking time effectively. Further, as a content transmission method, a wired LAN cable, a coaxial cable, an optical fiber, or the like may be used in addition to the wireless LAN.
- the content distribution server 201 similarly receives the content storage server 312 via the antenna 322 of the airport building facility 302 via the wireless network. Will be connected.
- the content distribution server 201 is connected to the content storage server 313 via the antenna 323 of the airport building facility 303 via a wireless network.
- Audio / video content is uploaded from the content storage server 311 to the content distribution server 201 while parked at the airport 101. However, if the content that can be uploaded during parking is a part of the total content, it connects to the content storage server 312 again at the airport 102 where the next parking is performed, and when the content that is not owned is sent, it is received, Operates to write. If the entire content is not written even at the airport 102, the same operation is performed at the airport 103 where the aircraft is parked next. That is, the content distribution server 201 connects to the content storage server 313 to receive and write unowned content. Thereafter, this upload operation is repeated until the entire content is written.
- the same video / audio contents are stored in the content storage servers 311 to 313 arranged in the airport building facilities 301 to 303 of the respective airports. Therefore, it is as if the content distribution server 201 is parked at any airport. It can operate as if it is connected to the same content storage server.
- the aircraft 200 flies through three airports in a circular manner is shown, but the number of airports that pass through is not limited to this.
- the number of parked aircraft is not limited to this.
- FIG. 3 schematically shows how video and audio content is recorded in the content distribution server 201 of the aircraft 200 as a result of the above operation.
- the partial content C01 is first uploaded at the airport 101.
- the partial content C02 other than the partial content C01 among the video and audio content uploaded while parked at the airport 102 is captured.
- the content C03 other than the partial contents C01 and C02 is taken in at the airport 103. While repeating such operations, it can be expected that the entire content C-ALL will be captured at several airports in the future. Since the transmission of video and audio content from the content storage server at each airport circulates at an arbitrary timing, not all airports can always capture unowned content, and the maximum number of parkings before reaching C-ALL Is not fixed.
- the partial contents C01 to C03 do not need to be a single or a plurality of movies or music program units, for example, but a part of a certain song or movie (for example, an arbitrary period from 16 minutes 20 seconds to 53 minutes 47 seconds after the start) ) Is no problem.
- encoded audio and video files have time stamps recorded in units of minute frames, etc. By using this information, which period in the song or movie is already held? It is possible to easily identify which time portion of the video / audio content is transmitted from the content storage server 311 or the like.
- FIG. 4 is a block diagram showing an internal configuration of the content distribution server 201 according to the first embodiment of the present invention installed in the aircraft 200.
- the functional blocks described in the drawings describe only functions relating to uploading from the content storage server 311 and the like, and those relating to video / audio content distribution functions in the aircraft, such as those relating to playback program requests from passengers, etc. Omitted.
- the audiovisual content uploaded from the content storage server 311 or the like is stored in the recording unit 202 configured with a hard disk or the like. At that time, whether or not the video / audio content being uploaded is already held in the recording unit 202 is checked by the content checking unit 203, and if it is not held, an instruction is given to the recording control unit 204, The content is additionally recorded in the recording unit 202. When all the necessary content is recorded in the recording unit 202, the new content can be used for distribution as an in-flight entertainment system to each seat in the aircraft.
- the inside of the recording unit 202 is actually divided into two areas. An area and a recording area for the updated service are secured. When all the contents are in the update area, the operation can be switched to a service using the contents in the update area.
- the distribution of the video / audio content in the aircraft may be an on-demand system from passengers, a broadcast-type multicast format, or a mixture thereof.
- These functions are functions independent of the upload method of the present invention, and are determined as design matters of the content distribution server 201.
- the content storage servers 311 to 313 need only transmit the stored video / audio content continuously, cyclically, and unilaterally by broadcasting.
- the servers 311 to 313 can be realized by a server having a simple structure in which unidirectional content transmission is repeated. In the case of broadcasting, there is no mechanism for retransmission for transmission errors, but by adding an error correction code to transmission data, errors can be corrected and stable transmission quality can be ensured even if transmission errors occur.
- the content distribution server 201 does not require communication for controlling the content to be transmitted with the content storage servers 311 to 313, a simple and inexpensive content upload system can be constructed.
- the aircraft 200 does not need to be parked only for content upload, and the operation efficiency can be expected.
- the content stored in the content storage server 311 includes the first group of video / audio contents that require immediacy and the second group of video / audio contents that do not require immediacy.
- the “two-region operation” of the recording unit 202 is described on the assumption that the current service and the update service are switched at a certain timing. It is necessary to deal with content that requires high performance. For example, today's news / weather forecast, the latest event information in the destination city, the latest announcement from the airline, etc. Information and programs that you want to update ahead of time without waiting for all the content to be updated. Is required to be handled differently from normal entertainment content as content requiring immediacy.
- FIG. 5 is a timing diagram showing how the content storage server 311 and the like are uploaded in the second embodiment of the present invention for the purpose of uploading content requiring immediacy with high priority.
- the upper timing diagram in FIG. 5 shows how the entire content C-ALL is periodically and repeatedly uploaded.
- the timing chart in the middle of FIG. 5 shows how the normal contents C-G1 to C-G4 and the contents C-RT requiring immediacy are allocated on the time axis within the entire contents C-ALL. It is shown whether it is sent out.
- the content C-RT that requires immediateness is arranged at a plurality of locations on the time axis in a single C-ALL transmission, and is transmitted at a high frequency. .
- the content distribution server 201 can receive and write the content C-RT with a high probability.
- the timing chart at the bottom of FIG. 5 shows the internal structure of the content C-RT that requires immediateness. Five types of programs P-RT1 to P-RT5 are included.
- the content C-RT for which immediacy is required is configured to transmit the same content a plurality of times within one C-ALL transmission.
- the content distribution server 201 can receive and store the content C-RT quickly and reliably.
- a content upload system for an aircraft entertainment system, it is possible to distribute and write large-capacity video / audio content to parking opportunities at multiple airports.
- a content upload system can be provided.
- the upload destination of the audiovisual content is the centralized content distribution server 201 installed in the aircraft 200, or one or a few, but for each seat or 2 to 5 seats
- a distributed content distribution server installed for each unit is also possible.
- the content to be uploaded has been described as movie or music AV information.
- the present invention is not limited to this, and information such as aircraft operation information and airport information may be uploaded.
- the present invention is a content upload system from a content storage server in an airport to a content distribution server in an aircraft when updating video and audio content for an in-flight entertainment system that is generally spread on aircraft such as international flights. Is available.
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- Multimedia (AREA)
- Databases & Information Systems (AREA)
- Aviation & Aerospace Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Information Transfer Between Computers (AREA)
Abstract
Description
図1は本発明の実施の形態1における航空機200の飛行経路および駐機する空港101~103を模式的に示した図であり、図2は本発明の実施の形態1におけるコンテンツアップロードシステムの基本構成例を示すブロック図である。図1では、航空機200が空港101を出発し、空港102、空港103を経由して空港101に戻ってくる例を示している。航空機200は空港101、102、103に駐機中、機体のメンテナンスや荷貨物の積み下ろしをしている間に、映像音声コンテンツのアップロードを行う。
次に本発明の実施の形態2について説明する。実施の形態1においては、コンテンツ蓄積サーバ311に蓄積されるコンテンツには、即時性を要求される第1のグループの映像音声コンテンツと、即時性を要求されない第2のグループの映像音声コンテンツとが存在する。航空機内娯楽サービス用の映像音声コンテンツは、現行サービス用と更新サービス用が、あるタイミングで丸ごと切り替わることを想定して記録部202の「2領域運用」を記載したが、実際の運用では、即時性を要求されるコンテンツに対する対応が必要となる。たとえば、今日のニュース・天気予報、到着先都市での最新イベント情報、航空会社からの最新のお知らせ、などは更新用コンテンツの取り込みが全コンテンツ揃うまで待たずに、先行的に更新したい情報、プログラムは即時性を要求されるコンテンツとして、通常の娯楽用コンテンツとは異なる扱いが望まれる。
200,200a,200b,200c 航空機
201,201a,201b,201c コンテンツ配信サーバ
202 記録部
203 コンテンツ照合部
204 記録制御部
205a,205b,205c,321,322,323 アンテナ
211~213 座席
221~223 表示端末
231~233 ヘッドホン
251~253 コンテンツ処理端末
301~303 空港ビル施設
311~313 コンテンツ蓄積サーバ
Claims (5)
- 航空機内に設置され前記航空機内に映像音声コンテンツを配信するコンテンツ配信サーバと、前記航空機が駐機する複数の空港のそれぞれに設置され前記コンテンツ配信サーバにネットワークを経由して映像音声コンテンツを送出する複数のコンテンツ蓄積サーバとを備え、前記コンテンツ配信サーバは前記航空機が前記空港に駐機中に、前記コンテンツ蓄積サーバから送出される映像音声コンテンツのうち自らがまだ保有していない映像音声コンテンツを選択的に書き込むことを特徴とするコンテンツアップロードシステム。
- 前記コンテンツ配信サーバは、映像音声コンテンツを記録する記録部と、前記記録部内の映像音声コンテンツと前記コンテンツ蓄積サーバから送出される映像音声コンテンツとを照合するコンテンツ照合部と、前記コンテンツ照合部によって前記記録部内に未記録と判定された映像音声コンテンツを選択的に記録部に書き込む記録制御部と、を備えたことを特徴とする請求項1に記載のコンテンツアップロードシステム。
- 前記コンテンツ蓄積サーバは、蓄積した映像音声コンテンツを継続的かつ巡回的に送出することを特徴とする請求項1または請求項2に記載のコンテンツアップロードシステム。
- 前記コンテンツ蓄積サーバに蓄積された映像音声コンテンツは、即時性を要求される映像音声コンテンツから成る第1のグループの映像音声コンテンツと、即時性を要求されない映像音声コンテンツから成る第2のグループの映像音声コンテンツを含み、前記第1のグループの映像音声コンテンツは前記第2のグループの映像音声コンテンツに対して高い頻度で送出されることを特徴とする請求項1~3のいずれか1項に記載のコンテンツアップロードシステム。
- 空港に設置されたコンテンツ蓄積サーバからネットワークを経由して映像音声コンテンツを受信し、航空機内に前記映像音声コンテンツを配信するコンテンツ配信サーバであって、前記映像音声コンテンツを記録する記録部と、前記記録部内の映像音声コンテンツと前記コンテンツ蓄積サーバから受信した映像音声コンテンツとを照合するコンテンツ照合部と、前記コンテンツ照合部によって前記記録部内に未記録と判定された映像音声コンテンツを選択的に記録部に書き込む記録制御部と、を備えたことを特徴とするコンテンツ配信サーバ。
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US13/375,929 US8949908B2 (en) | 2009-06-05 | 2010-06-04 | Content upload system and content distribution server |
JP2011518280A JPWO2010140376A1 (ja) | 2009-06-05 | 2010-06-04 | コンテンツアップロードシステムおよびコンテンツ配信サーバ |
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JP2009135834 | 2009-06-05 | ||
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US8934893B2 (en) * | 2012-07-09 | 2015-01-13 | Gogo Llc | Mesh network based automated upload of content to aircraft |
US10069895B2 (en) | 2015-05-19 | 2018-09-04 | Panasonic Avionics Corporation | Wireless content loader for entertainment system |
DE102017204216A1 (de) * | 2017-03-14 | 2018-09-20 | Airbus Operations Gmbh | System und Verfahren zur temporären und lokalen Inhaltsfreigabe |
US20200010071A1 (en) * | 2018-07-03 | 2020-01-09 | Jacob M. Brancato | Payload transport and delivery method, system and multi-platform unmanned cargo delivery vehicle |
US11172240B2 (en) * | 2019-11-04 | 2021-11-09 | Panasonic Avionics Corporation | Content loading through ad-hoc wireless networks between aircraft on the ground |
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US8949908B2 (en) | 2015-02-03 |
US20120090011A1 (en) | 2012-04-12 |
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