Central controller of vehicle-mounted broadcasting equipment

A central controller and broadcasting equipment technology, applied in the direction of broadcasting system control, broadcasting specific applications, etc., can solve the problems that the vehicle broadcasting equipment cannot announce the station broadcast, affect the experience of passengers, and transmit audio signals through a single analog bus, so as to achieve the elimination of noise , Improve safety and reduce cost

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

Problems solved by technology

[0004] At present, the central controller of traditional vehicle broadcasting equipment can only analyze audio data files in WAV format, and transmit audio signals through a single analog bus
Once the analog bus is abnormal, it will cause the car radio equipment to fail to perform normal s

Method used

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  • Central controller of vehicle-mounted broadcasting equipment

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[0015] Example 1

[0016] A central controller for vehicle-mounted broadcasting equipment, in which the core components of the central controller of vehicle-mounted broadcasting equipment include a microprocessor, an audio codec chip, an SD card, an analog switch, a UIC568 ​​bus, an MVB gateway, and a volume adjustment unit. The microprocessor adopts the LM3S9B96 produced by Texas Instruments, which has a main frequency of 80MHz and a high-performance microprocessor chip with rich peripheral interfaces. The audio codec chip adopts the high-performance audio codec chip VS1063 produced by VLSI, which supports the encoding and decoding of multiple audio format files such as MP3, WAV, and PCM. The analog switch adopts the CD74HC4052M produced by Texas Instruments in the United States, which is two groups of four analog switches.

[0017] The central controller of the in-vehicle broadcasting equipment of the present invention transmits audio data through Ethernet by default. After rec...

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Abstract

The invention relates to a central controller of vehicle-mounted broadcasting equipment. The core components of the central controller consist of a microprocessor, an audio coding and decoding chip, an SD card, an analog switch, a UIC568 bus, an MVB gateway, and a volume adjusting unit. The central controller defaults to ethernet network-based various audio data transmission. When a fault occurs at the ethernet network of the vehicle-mounted broadcasting equipment of the train, the central controller switches an audio signal transmission access into the UIC568 bus for transmitting the analog audio signal automatically by an ethernet network way. According to the invention, with the central controller, the defect that the previous products only support digital ethernet network-based data transmission can be overcome; the broadcasting system reliability is enhanced; and the train running security is improved. Moreover, the analog switch is used for carrying out audio source switching, so that not only the noises of the relay motion are eliminated but also the system cost is lowered.

Description

technical field [0001] The invention relates to a broadcasting equipment controller, in particular to a vehicle-mounted broadcasting equipment central controller in the rail transit field. Background technique [0002] With the rapid development of the railway industry, various on-board equipment on trains are also developing in the direction of informatization, intelligence and networking. Car radio equipment is the basis for realizing informatization and intelligence. [0003] The central controller of the on-board broadcasting equipment is an important part of the train broadcasting system, which is usually installed in the server of the train driver's cab. The central controller of the on-board broadcasting equipment mainly realizes functions such as audio station announcement data decoding, data transmission, and multi-channel audio source switching. [0004] At present, the central controller of the traditional vehicle broadcasting equipment can only analyze the audi...

Claims

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Application Information

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IPC IPC(8): H04H60/09H04H20/62
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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