CN103716507A - Vehicle-ground wireless media video transmission system - Google Patents
Vehicle-ground wireless media video transmission system Download PDFInfo
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- CN103716507A CN103716507A CN201310749305.8A CN201310749305A CN103716507A CN 103716507 A CN103716507 A CN 103716507A CN 201310749305 A CN201310749305 A CN 201310749305A CN 103716507 A CN103716507 A CN 103716507A
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- processing module
- compression processing
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- output device
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Abstract
The invention discloses a vehicle-ground wireless media video transmission system which comprises a rail transit vehicle, a ground monitoring center, a synchronous compression processing module, a wireless transmitting device, a wireless receiving device and a data output device. The wireless receiving device and the data output device are arranged in the rail transit vehicle, the wireless receiving device is connected with the data output device, the synchronous compression processing module and the wireless transmitting device are arranged in the ground monitoring center, and the synchronous compression processing module is connected with the wireless transmitting device. By the adoption of the technical scheme, the vehicle-ground wireless media video transmission system has the advantages that the problem of packet loss and the problem of asynchrony between videos and audios are effectively solved, under the condition that the frame loss is very small, the videos and the audios are matched to be synchronous to the maximum, and synchronous precision is improved to be in a millisecond level from an original second level.
Description
Technical field
The present invention relates to a kind of Video transmission system, be specifically related to a kind of car-ground radio media video transmission system.
Background technology
In prior art, in track traffic circulation, if by wireless receiving media data and show, there is following problem on rail traffic vehicles, the packet loss that wireless network signal problem causes, the reception sequencing of sound and video causes playing asynchronous.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide a kind of car-ground radio media video transmission system, effectively solve packet loss problem, effectively solve the asynchronous problem of Audio and Video, in the situation that frame losing is minimum, to greatest extent match video and audio sync, from synchronous accuracy from second level bring up to Millisecond situation.
For achieving the above object, technical scheme of the present invention is as follows: a kind of car-ground radio media video transmission system, comprises
Rail traffic vehicles;
Ground monitoring center, for controlling whole system operation;
Synchronous compression processing module, for carry out synchronously, carrying out host-host protocol according to timestamp to every frame Audio and Video simultaneously;
Wireless base station apparatus, for sending the Audio and Video data after synchronous compression processing module is processed;
Radio receiver, for receiving the Audio and Video data that send from wireless base station apparatus;
Data output device, the Audio and Video data that receive for exporting radio receiver;
Described radio receiver and described data output device are arranged in described rail traffic vehicles, and described radio receiver is connected with described data output device;
Described synchronous compression processing module and described wireless base station apparatus are arranged in described ground monitoring intracardiac, and described synchronous compression processing module is connected with described wireless base station apparatus.
Preferably, described data output device is LCD display.
Adopt the beneficial effect of the technical program to be: effectively to solve packet loss problem, effectively solve the asynchronous problem of Audio and Video, in the situation that frame losing is minimum, to greatest extent match video and audio sync, from synchronous accuracy from second level bring up to Millisecond situation.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in embodiment of the present invention technology, to the accompanying drawing of required use in embodiment technical description be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, a kind of car-ground radio media video transmission system of the present invention, comprises
Rail traffic vehicles;
Ground monitoring center, for controlling whole system operation;
Synchronous compression processing module, for carry out synchronously, carrying out host-host protocol according to timestamp to every frame Audio and Video simultaneously;
Wireless base station apparatus, for sending the Audio and Video data after synchronous compression processing module is processed;
Radio receiver, for receiving the Audio and Video data that send from wireless base station apparatus;
Data output device, the Audio and Video data that receive for exporting radio receiver;
Radio receiver and data output device are arranged in rail traffic vehicles, and radio receiver is connected with data output device;
Synchronous compression processing module and wireless base station apparatus are arranged in ground monitoring intracardiac, and synchronous compression processing module is connected with wireless base station apparatus.
Data output device is LCD display.
Adopt the beneficial effect of the technical program to be: effectively to solve packet loss problem, effectively solve the asynchronous problem of Audio and Video, in the situation that frame losing is minimum, to greatest extent match video and audio sync, from synchronous accuracy from second level bring up to Millisecond situation.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (2)
1. a car-ground radio media video transmission system, is characterized in that, comprises
Rail traffic vehicles;
Ground monitoring center, for controlling whole system operation;
Synchronous compression processing module, for carry out synchronously, carrying out host-host protocol according to timestamp to every frame Audio and Video simultaneously;
Wireless base station apparatus, for sending the Audio and Video data after synchronous compression processing module is processed;
Radio receiver, for receiving the Audio and Video data that send from wireless base station apparatus;
Data output device, the Audio and Video data that receive for exporting radio receiver;
Described radio receiver and described data output device are arranged in described rail traffic vehicles, and described radio receiver is connected with described data output device;
Described synchronous compression processing module and described wireless base station apparatus are arranged in described ground monitoring intracardiac, and described synchronous compression processing module is connected with described wireless base station apparatus.
2. a kind of car-ground radio media video transmission system according to claim 1, is characterized in that, described data output device is LCD display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310749305.8A CN103716507A (en) | 2013-12-31 | 2013-12-31 | Vehicle-ground wireless media video transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310749305.8A CN103716507A (en) | 2013-12-31 | 2013-12-31 | Vehicle-ground wireless media video transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103716507A true CN103716507A (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310749305.8A Pending CN103716507A (en) | 2013-12-31 | 2013-12-31 | Vehicle-ground wireless media video transmission system |
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| CN (1) | CN103716507A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270685A (en) * | 2014-10-17 | 2015-01-07 | 阿纳克斯（苏州）轨道系统有限公司 | Method for transmitting multimedia signals in tramcar |
| CN104581420A (en) * | 2014-12-31 | 2015-04-29 | 阿纳克斯（苏州）轨道系统有限公司 | Transmission system for 4G wireless videos on rail traffic vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1868213A (en) * | 2003-09-02 | 2006-11-22 | 索尼株式会社 | Content receiving apparatus, video/audio output timing control method, and content providing system |
| CN103023639A (en) * | 2011-09-22 | 2013-04-03 | 硅实验室股份有限公司 | Systems, circuits and methods for time stamp based one-way communications |
-
2013
- 2013-12-31 CN CN201310749305.8A patent/CN103716507A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1868213A (en) * | 2003-09-02 | 2006-11-22 | 索尼株式会社 | Content receiving apparatus, video/audio output timing control method, and content providing system |
| CN103023639A (en) * | 2011-09-22 | 2013-04-03 | 硅实验室股份有限公司 | Systems, circuits and methods for time stamp based one-way communications |
Non-Patent Citations (2)
| Title |
|---|
| 张健: "《车地无线信息传输系统浅析》", 《铁路通信信号工程技术》 * |
| 李兆臣: "《地铁无线视频传输系统设计》", 《智能建筑电气技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270685A (en) * | 2014-10-17 | 2015-01-07 | 阿纳克斯（苏州）轨道系统有限公司 | Method for transmitting multimedia signals in tramcar |
| CN104270685B (en) * | 2014-10-17 | 2018-03-27 | 阿纳克斯（苏州）轨道系统有限公司 | The transmission method of multi-media signal in a kind of tramcar |
| CN104581420A (en) * | 2014-12-31 | 2015-04-29 | 阿纳克斯（苏州）轨道系统有限公司 | Transmission system for 4G wireless videos on rail traffic vehicle |
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Application publication date: 20140409 |
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