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Vehicle-mounted media play system

A technology for media playback and media server, applied in recording information storage, instruments, etc., can solve the problems of severe signal attenuation, high cost, difficult to achieve ideal image quality, etc., to achieve the introduction of train wiring, low cost, anti-electromagnetic interference performance strong effect

Inactive Publication Date: 2011-09-21
GUANGZHOU GLOBAL LINK COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of this transmission method is high. At the same time, in the complex environment of the train, the coaxial cable that runs through the train needs to pass through the coupler many times. In actual use, the signal attenuates severely when it reaches the tail car, and it is difficult to achieve the ideal image quality.

Method used

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Embodiment Construction

[0018] A vehicle-mounted media player system according to the present invention will be further described below in conjunction with specific embodiments.

[0019] A vehicle-mounted media playback system, comprising: a media server for receiving / processing real-time VGA multimedia information video data streams, a screen splitter for decoding and distributing video signals, at least two LCD display screens for displaying video, media A VGA digital encoder is installed in the server, a VGA digital decoder is installed in the screen splitter, the media server is installed in the head / tail driver's cab, and the screen splitter and LCD display are installed in each passenger compartment; among them, the media server is connected to To the external ground control center, the media server is connected to the screen splitter in each car through a TCP / IP network composed of low-smoke and halogen-free Cat. Connect with the LCD display screen through a twisted pair; receive VGA media inf...

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Abstract

The invention discloses a vehicle-mounted media play system. The vehicle-mounted media play system comprises a media server which is used for receiving / processing a real-time video data flow of video graphics array (VGA) multimedia information, a screen splitter used for decoding and distributing video signals, and at least two liquid crystal display (LCD) display screens used for displaying videos. A VGA digital encoder is arranged in the media server; and a VGA digital decoder is arranged in the screen splitter. The video data of VGA media information are received in real time by the media server from an external control center and converted into transport (TS) flow digital signals by the VGA digital encoder; the TS flow digital signals are transmitted to the screen splitter, and decoded and restored into VGA video / audio signals by the VGA digital decoder; and the VGA video / audio signals are distributed to each LCD display screen in balance for playing. The vehicle-mounted media play system can be applied to transmission of high quality video / audio signals in a complex train environment, and is simple in wiring.

Description

technical field [0001] The invention relates to a media playing system, in particular to a vehicle-mounted media playing system applied to a train environment. Background technique [0002] The video signal is the source of the image displayed by the train display equipment in rail transit, and it is divided into analog signal and digital signal. Among them, the analog signal includes VGA signal, component signal, S-Video (S-Video) and AV signal, and the digital signal includes DP digital video signal, HDMI 1.3 digital video signal, HDMI 1.2 digital video signal, DVI digital video signal. In the design of the on-board media playback system currently used in rail transit trains, the transmission process of multimedia information can be divided into two categories: one is the analog transmission method, and the other is the digital transmission method, which specifically includes the following transmission methods: [0003] (1) Composite Video distribution transmission mode: ...

Claims

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Application Information

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IPC IPC(8): G11B31/00
Inventor 范庆超陈文华
Owner GUANGZHOU GLOBAL LINK COMM
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