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Cab server

A driver's cab and server technology, applied in the server field, can solve problems such as signal distortion, poor sound quality, and inability to transmit analog audio signals to the passenger compartment, so as to reduce maintenance costs and improve safety

Inactive Publication Date: 2014-10-22
SUZHOU HUAQI INTELLIGENT TECH
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

Once the transmission channel of the analog audio signal fails, the analog audio signal will not be transmitted to the guest room, and the broadcasting system will not be able to broadcast normally.
In addition, due to long-distance transmission, analog audio signals are prone to attenuation, signal distortion, and poor sound quality during broadcasting

Method used

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Experimental program
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Effect test

Embodiment 1

[0024] A driver's cab server adopts a double-backup design of analog audio data transmission and digital audio data transmission, and the system uses analog audio data transmission by default. Automatic broadcasting, semi-automatic broadcasting, emergency broadcasting, artificial broadcasting, and driver intercom all support analog audio data transmission and digital audio data transmission at the same time, only passenger alarms only support digital audio data transmission.

[0025] In analog mode, during automatic broadcast, semi-automatic broadcast or emergency broadcast, the driver’s cab main control board processor reads out the corresponding digital audio data from the SD card, restores the analog audio signal through the audio codec chip and transmits it to the UIC568 ​​interface board, and then Connect to UIC568 ​​bus through UIC568 ​​interface. The analog audio signal is transmitted to the server in the train compartment through the UIC568 ​​bus.

[0026] When two tr...

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Abstract

The invention relates to a cab server. The cab server comprises a backboard, a power panel, a switch, an MVB interface board, a cab main control panel, a fire communication panel, a cab broadcast main control panel, a UIC568 interface board and a train reconnection board. Through an actual test, when a fault occurs in a UIC568 bus, a system can quickly switch to ethernet communication, audio signals are transmitted through the ethernet, and normal broadcast of the broadcast system is not affected. The broadcast system adopts the novel cab server, and when a fault occurs in the UIC568 bus, the broadcast system can still work normally, thereby not only improving safety of train operation, and but also reducing maintenance cost of a train.

Description

technical field [0001] The invention relates to a server, in particular to a driver's cab server used on trains in the rail transit field. Background technique [0002] UIC568 ​​bus is a commonly used train communication control bus. For a long time, the on-board public address system of the train transmits analog audio signals through the UIC568 ​​bus. Once the transmission path of the analog audio signal fails, the analog audio signal will not be transmitted to the guest room, and the broadcasting system will not be able to broadcast normally. In addition, due to long-distance transmission, analog audio signals are prone to attenuation, signal distortion, and poor sound quality during broadcasting. [0003] With the development of science and technology, Ethernet communication has become a mainstream communication method. Ethernet communication adopts differential level transmission, which has the advantages of strong anti-interference ability and long transmission dist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28H04H20/62G05B19/418
Inventor 刘晓华王宏雷包立勇彭海辉冯立新
Owner SUZHOU HUAQI INTELLIGENT TECH
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