CN114598686B - Rail transit vehicle movie and television system and vehicle based on 5G network - Google Patents
Rail transit vehicle movie and television system and vehicle based on 5G network Download PDFInfo
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- CN114598686B CN114598686B CN202210211803.6A CN202210211803A CN114598686B CN 114598686 B CN114598686 B CN 114598686B CN 202210211803 A CN202210211803 A CN 202210211803A CN 114598686 B CN114598686 B CN 114598686B
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- 238000012545 processing Methods 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 230000002776 aggregation Effects 0.000 claims description 4
- 238000004220 aggregation Methods 0.000 claims description 4
- 238000003032 molecular docking Methods 0.000 claims description 3
- 238000007726 management method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000000275 quality assurance Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000012550 audit Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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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
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
-
- 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
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention belongs to the technical field of rail transit vehicles, and particularly relates to a 5G network-based rail transit vehicle video system and a vehicle. The system comprises a cloud server, a network video server and a network video server, wherein the cloud server is used for acquiring and storing network video resources; the vehicle-mounted center server is communicated with the cloud server through a 5G network and is used for automatically synchronizing network video resources in the cloud server; the bicycle server is communicated with the vehicle-mounted center server and is used for receiving and responding to the network video resource request sent by the television terminal; a television terminal for playing the requested network video asset.
Description
Technical Field
The invention belongs to the technical field of rail transit vehicles, and particularly relates to a 5G network-based rail transit vehicle video system and a vehicle.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
With the development of high-speed motor train unit technology, the requirements on vehicle performance and functional configuration are correspondingly improved. At present, television live programs of a video system on a motor train unit are rebroadcast, are limited by playing authorities, cannot be played in real time, have poor playing effect, cannot play different television programs by a single television terminal, and are allowed to play a small number of live broadcasting stations. And because of the influence factors of insufficient bandwidth, the motor train unit cannot watch the video programs of the network video-on-demand system, and the quality of the broadcast audio and video information cannot be guaranteed. In summary, the conventional movie and television system for the motor train unit has the problems of poor quality of use and poor user experience of passengers.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a 5G network-based track traffic vehicle video system and a vehicle, which can realize the functions of watching live television programs in real time through a legal live source, ordering video resources of the legal network, ordering program sources of a local server and playing locally.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
A first aspect of the present invention provides a 5G network-based rail transit vehicle movie system, comprising:
the cloud server is used for acquiring and storing network video resources;
the vehicle-mounted center server is communicated with the cloud server through a 5G network and is used for automatically synchronizing network video resources in the cloud server;
The bicycle server is communicated with the vehicle-mounted center server and is used for receiving and responding to the network video resource request sent by the television terminal;
a television terminal for playing the requested network video asset.
As an implementation manner, the on-vehicle center server is provided with a live broadcast server, and the live broadcast server is used for acquiring a multimedia live broadcast data source or time shift data in the network video resource.
As an implementation manner, the cloud server is further configured to perform buffering, protocol conversion and packaging processing on the received network video resource.
As one embodiment, the bicycle server is connected to the vehicle center server through a switch.
As an implementation manner, the vehicle-mounted center server synchronizes the network video resources in the cloud server in an incremental update manner.
As one embodiment, the in-vehicle center server includes:
the docking module is used for communicating with the cloud server;
The system monitoring module is used for monitoring the running condition of the system;
The link aggregation processing module is used for carrying out link switching and bandwidth merging on the multipath 5G network;
the video stream processing module is used for reorganizing the packet format and the protocol format of the video stream;
And the cache processing module is used for caching the video stream information.
As an implementation manner, a cloud media management system is used in a cloud server to manage the layout of a startup picture and channel classification, and copyrighted content is placed into a corresponding media channel according to the channel classification.
As an implementation mode, the on-vehicle center server is deployed with an on-demand server, and the on-demand server is used for storing on-demand data sources.
As an implementation manner, the television terminal is further connected with a communication interface, and the communication interface is used for being connected with an external storage device, and video resources are stored in the external storage device.
A second aspect of the invention provides a vehicle comprising a 5G network based rail transit vehicle video system as described above.
Compared with the prior art, the invention has the beneficial effects that:
(1) The invention thoroughly solves the problems that the television live programs of the film and television system on the motor train unit are rebroadcast by leaning on and limited by playing authority, cannot realize real-time playing, poor playing effect, incapability of realizing playing different television programs by a single television terminal, small number of allowed live broadcast stations and the like, adopts the broadcast center live broadcast source for pushing, transmits and uses a 5G network, improves the playing quality of the television live programs, meets the requirements of high definition, smoothness and no blocking, and can play different television programs by different television terminals at the same time.
(2) The invention solves the problem that the video program of the network video-on-demand system cannot be watched on the motor train unit, stores the legal network video resources of the broadcasting and television center in the cloud server, realizes the network video-on-demand function of the vehicle-mounted television through the 5G network, and updates the video resources in real time.
(3) The video system of the invention sets the control priority of the carriage television in the vehicle-mounted central server so as to distinguish the priority and make quality assurance, and under the condition of insufficient bandwidth, the use quality of the high-priority television is preferentially guaranteed.
(4) The network on-demand system resource has the function of automatic updating, and after the system on the motor train unit is started, the resource on the central server is automatically checked to be consistent with the ground cloud server, and if the resource is found to be updated, the resource can be downloaded with the lowest priority under the condition of sufficient bandwidth.
Additional aspects of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
FIG. 1 is a schematic diagram of a live television broadcast according to an embodiment of the present invention;
Fig. 2 is a schematic diagram of a 5G network-based track traffic vehicle movie and television system according to an embodiment of the present invention.
Detailed Description
The invention will be further described with reference to the drawings and examples.
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
Example 1
In order to solve the problems that in the background technology, a video program of a network video-on-demand system cannot be watched on a motor train unit, and the quality of playing audio and video information cannot be guaranteed, so that the video system on the motor train unit is led to have poor quality and poor user experience of passengers, as shown in fig. 1 and 2, the embodiment provides a 5G network-based track traffic vehicle video system, which comprises a cloud server, a vehicle-mounted center server, a bicycle server and a television terminal.
Wherein:
(1) Cloud server
And the cloud server is used for acquiring and storing network video resources.
In the implementation process, the cloud server is further used for caching, protocol conversion and packaging the received network video resources.
The cloud media management system is used in the cloud server to manage the layout of the startup picture and the classification of the channels, and copyrighted content is placed into corresponding media channels according to the channel types. The video resources are introduced, and meanwhile, the poster and the content introduction can be configured.
The television system for the rail transit vehicle based on the 5G network has a television live broadcast function, and the principle is shown in figure 1. The broadcast and television center of the content provider transmits the live video to the ground distribution system from the wired public network, the ground distribution system caches, converts and packages the video, and transmits the video to the vehicle-mounted part through the 5G network, and meanwhile, the ground part deploys system management and parameters of video stream and content broadcast control.
Here, it should be noted that the ground distribution system is part of the functions implemented by the cloud server.
To ensure the security of live content, the ground distribution system mainly comprises the following parts:
(a) Firewall wall
A DMZ security zone is set up through a firewall device, WEB websites and interface services of external services are protected, internal interface services, internal business services, video transcoding services, database storage services and the like are prevented from being protected in the security zone, so that the security and reliability of the whole system are ensured, and malicious attacks are prevented.
(B) Load balancing module
And installing load balancing equipment (SLB) for configuring hardware, ensuring that service units of the system have no single point, and ensuring that at least 1 service unit is still in a usable state even if accidents occur due to at least 2 instances of all business service units.
(C) WEB server module
The system is applied to a web page management system facing the Internet, a data interface service to an external network, an internal management system and an internal interface service. All WEB accesses record access logs so as to carry out big data statistics and security audit.
(D) Business service module
The business service module is responsible for processing business logic of the whole system, such as authority checking, equipment state monitoring, processing logic of audio and video, ground video cache and the like.
(E) Media transcoding service module
The cloud receives multiple paths (for example, 15 paths) of video signals from a television live broadcast source, and performs necessary transcoding work so as to adapt to the compatibility requirement of terminal playing.
(F) Database service module
Providing all user data storage functions for the surface system, such as: the method comprises the steps of collecting the downloading state of 3 5G network cards every 2 seconds for a vehicle-mounted system, when a plurality of trains report the state simultaneously, generating state record quantity exceeding the limit of mysql capable of being written in real time, adopting a redis buffering mode, and merging and writing mysql after buffering analysis.
(G) Monitoring terminal
The condition of accessing the whole network can be monitored at any time by using a common PC or a notebook computer so as to know the condition and make necessary adjustment.
(H) Code rate adjustment
In order to meet the transmission requirement in low bandwidth, a live broadcast source can be simultaneously transcoded and output with different resolutions, so that Gao Qingma streams are adopted when the bandwidth is good, and common clear code streams are adopted when the bandwidth is insufficient.
(2) Vehicle-mounted center server
The vehicle-mounted center server is communicated with the cloud server through a 5G network and is used for automatically synchronizing network video resources in the cloud server.
In some embodiments, the on-board central server is configured with a live server for acquiring multimedia live data sources or time-shifted data in the network video resources.
The vehicle-mounted center server of the vehicle-mounted part in fig. 1 receives the video stream transmitted by the ground distribution system, then caches the video stream, and transmits the video stream to the television set top box through the switch for video decoding and playing.
Specifically, the in-vehicle center server includes:
The docking module is used for communicating with the cloud server; specifically, the system is responsible for communicating with a ground distribution system, and is used for responding to complex network conditions and reducing the data packet into a required data stream and a required control stream as efficiently as possible.
The system monitoring module is used for monitoring the running condition of the system;
The link aggregation processing module is used for carrying out link switching and bandwidth merging on the multipath 5G network; for example: 3 SIM cards are arranged in a 5G carrier plate of the central server, and can respectively belong to 3 different operators, and network communication capacity of 3 channels is bound and formed. The link aggregation module performs link switching and bandwidth merging on the multipath 5G network cards, improves the vehicle-mounted wireless bandwidth in a high-speed moving state, and improves the definition and fluency of live television broadcasting.
The video stream processing module is used for reorganizing the packet format and the protocol format of the video stream;
And the cache processing module is used for caching the video stream information.
The buffer processing mechanism provides a basis for the fluency of the pull stream of the playing terminal equipment, meets the requirement of users on multi-channel television program playing, and simultaneously deals with unstable network conditions in a high-speed state.
In other embodiments, the in-vehicle center server synchronizes the network video resources in the cloud server in an incremental update manner.
In the implementation process, the on-demand server is deployed in the vehicle-mounted central server and is used for storing the on-demand data source.
The local on-demand function can be realized by the vehicle-mounted television through reading video resources in the vehicle-mounted center server. Wherein the video asset is stored on a hard disk of the central server. The on-demand server is deployed in the central server and used for storing the on-demand data source, storing the movie resources in a frequency channel, and managing the content resources in a compatible format suitable for terminal viewing, thereby providing local on-demand service for the vehicle-mounted television. The TV remote controller can be used for selecting local video-on-demand, and the TV remote controller can enter a secondary interface of the local video-on-demand, wherein the interface comprises categories such as action films, science fiction products, drama films, comedy films and the like. And then selecting the video category to be watched by using a television remote controller, entering a three-level page, and finally selecting the film to be watched to realize playing in the high-package television.
If the multiple carriages all need to realize the functions of television live broadcasting, network on-demand broadcasting and local on-demand broadcasting, a single car server can be arranged in a single carriage, the single car server initiates connection with a vehicle-mounted center server, video resources of the carriage can be updated, and the video resources are distributed to multiple television terminals of the carriage so as to ensure the watching effect of the television terminals of each carriage.
In some embodiments, the car television control priority is further set in the vehicle-mounted central server, so that the priority is used for quality assurance, and the use quality of the high-priority televisions is guaranteed preferentially under the condition of insufficient bandwidth.
(3) Bicycle server
The bicycle server is communicated with the vehicle-mounted center server and is used for receiving and responding to the network video resource request sent by the television terminal.
In the implementation process, the bicycle server is connected with the vehicle-mounted center server through a switch. For example: the local video is mainly used for storing video resources in the U disk according to the requirements of different carriages, and playing of other external video resources is realized by inserting the U disk into a USB interface of a television between high packages.
(4) Television terminal
A television terminal for playing the requested network video asset.
In the implementation process, the television terminal is also connected with a communication interface, the communication interface is used for connecting with external storage equipment, and video resources are stored in the external storage equipment.
Example two
The embodiment provides a vehicle, which comprises the 5G network-based rail transit vehicle video system.
Here, the vehicle in this embodiment is a conventional structure except for the 5G network-based track traffic vehicle video system, and will not be described in detail here.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A 5G network-based track traffic vehicle movie and television system, comprising:
the cloud server is used for acquiring and storing network video resources;
the vehicle-mounted center server is communicated with the cloud server through a 5G network and is used for automatically synchronizing network video resources in the cloud server;
The bicycle server is communicated with the vehicle-mounted center server and is used for receiving and responding to the network video resource request sent by the television terminal;
A television terminal for playing the requested network video asset;
An on-demand server is deployed in the vehicle-mounted center server and is used for storing an on-demand data source;
and the vehicle-mounted center server is also provided with a carriage television control priority, and the use quality of the high-priority television is preferentially ensured under the condition of insufficient bandwidth.
2. The 5G network-based rail transit vehicle movie system of claim 1, wherein the in-vehicle center server is configured with a live server for acquiring multimedia live data sources or time-shifted data in the network video resources.
3. The 5G network-based rail transit vehicle video system of claim 1, wherein the cloud server is further configured to cache, convert, and package the received network video resources.
4. The 5G network-based rail transit vehicle movie system of claim 1, wherein the bicycle server is connected to the on-board center server through a switch.
5. The 5G network-based rail transit vehicle video system of claim 1, wherein the on-board center server employs incremental updates to synchronize network video resources within the cloud server.
6. The 5G network-based rail transit vehicle movie system of claim 1 or 5, wherein the on-board center server comprises:
the docking module is used for communicating with the cloud server;
The system monitoring module is used for monitoring the running condition of the system;
The link aggregation processing module is used for carrying out link switching and bandwidth merging on the multipath 5G network;
the video stream processing module is used for reorganizing the packet format and the protocol format of the video stream;
And the cache processing module is used for caching the video stream information.
7. The 5G network-based rail transit vehicle movie system of claim 1, wherein a cloud media management system is used in the cloud server to manage the boot screen layout, channel classification, and place copyrighted content into corresponding media channels by channel classification.
8. The 5G network-based rail transit vehicle movie and television system of claim 1, wherein the television terminal is further connected with a communication interface, the communication interface is used for connecting an external storage device, and the external storage device stores video resources.
9. A vehicle comprising a 5G network-based rail transit vehicle video system as claimed in any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210211803.6A CN114598686B (en) | 2022-03-04 | 2022-03-04 | Rail transit vehicle movie and television system and vehicle based on 5G network |
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| CN202210211803.6A CN114598686B (en) | 2022-03-04 | 2022-03-04 | Rail transit vehicle movie and television system and vehicle based on 5G network |
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| CN114598686B true CN114598686B (en) | 2024-05-17 |
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| CN114598686A (en) | 2022-06-07 |
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