Main control system of vehicle-mounted broadcasting equipment

A technology of broadcasting equipment and main control, applied in broadcasting system control, broadcasting specific applications, etc., can solve problems such as unfavorable drivers, understand the broadcasting status of the passenger room, investigate and collect evidence, etc., and achieve passenger alarm function guarantee, simple peripheral circuit, and short switching time. Effect

Inactive Publication Date: 2014-10-22
SUZHOU HUAQI INTELLIGENT TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the analog bus is abnormal, it will cause the car radio equipment to fail to perform normal station announcement broadcast
In addition, the main control system of the traditional vehicle broadcasting equipment does not record passenger alarms, which is not conducive to the investigation and evidence collection of alarm events
The main control system of the traditional on-board broadcast equipment uses the call handle to perform manual broadcast or intercom for the driver, which is inconvenient to use and also affects the driver's control of the train
The main control system of traditional on-board PA equipment often does not carry out broadcasting in the passenger room, which is not conducive to the driver's timely understanding of the status of the broadcasting in the passenger room

Method used

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  • Main control system of vehicle-mounted broadcasting equipment

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Effect test

Embodiment 1

[0018] A main control system of a vehicle-mounted broadcasting equipment, the core components of the main control system of the vehicle-mounted broadcasting equipment include a microprocessor, an audio codec chip, an SD card, an analog switch, a pickup, a call chip, a power amplifier, a loudspeaker, and a keyboard . The microprocessor is LM3S9B96 produced by Texas Instruments, which is a high-performance microprocessor chip with a main frequency of 80 MHz and abundant peripheral interfaces. The audio codec chip adopts the high-performance audio codec chip VS1063 produced by VLSI Company, which supports MP3, WAV, PCM and other audio format file encoding and decoding. The analog switch adopts TS5A4624DCKT produced by Texas Instruments.

[0019] In digital mode, when the driver selects manual broadcasting through the keyboard, the audio signal of the driver’s speech is collected by the pickup and output to the analog switch 1, and the microprocessor controls the analog switch 1 ...

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Abstract

The invention relates to a main control system of vehicle-mounted broadcasting equipment. The core components of the main control system consists of a microprocessor, an audio coding and decoding chip, an SD card, an alternative analog switches, a pickup unit, a conversation chip, a power amplifier, a loudspeaker, and a keyboard. Therefore, when a fault occurs at an ethernet network, automatic switching to an UIC568 bus for transmitting an analog audio signal can be carried out; and functions of manual broadcasting, driver talkback, and passenger alarming can be effectively guaranteed. The pickup unit is used for inputting a speaking sound source of the driver, so that the system can be used conveniently without influencing the training operating by the driver. The passenger alarm conversation is recorded and an audio file in an MP3 format is stored, so that the alarm event investigation evidence obtaining can be carried out beneficially.

Description

technical field [0001] The invention relates to a broadcasting equipment control system, in particular to a vehicle-mounted broadcasting equipment main control system in the rail transit field. Background technique [0002] The main control system of the on-board PA equipment is an important part of the train PA system, which is usually installed in the server of the train driver's cab. The main control system of the on-board broadcast equipment mainly realizes the driver's manual broadcast, driver-driver intercom, and passenger alarm reception. [0003] At present, the main control system of the vehicle radio equipment usually only transmits the audio signal through a single analog bus. Once the analog bus is abnormal, it will cause the on-board broadcasting equipment to be unable to perform normal station announcement broadcasting. In addition, the main control system of the traditional vehicle broadcasting equipment does not record passenger alarms, which is not conduci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
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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