Train full-featured digital-analog hybrid intelligent broadcast control box

Abstract

The invention relates to a train full-featured digital-analog hybrid intelligent broadcast control box, in particular to a broadcast controller positioned in a cab in a train-mounted broadcast system. The broadcast controller comprises a UIC568 analog network path and an Ethernet digital network path, wherein the UIC568 analog network path mainly comprises a UIC568 analog network, an analog intercom and audio processing module, a voice switching matrix module, an audio amplifier module and a loudspeaker which are sequentially connected, and the Ethernet digital network path mainly comprises an Ethernet digital network, a central processor, an audio codec chip, a voice switching matrix module, an audio amplifier module and a loudspeaker which are sequentially connected. According to the technical scheme provided by the invention, the full-featured broadcast effect of a train in the digital communication network and the analog communication network is realized, the system operation is stable, the real-time performance is good, the network priority is self-defined, and the two networks can be switched automatically according to the situation.

Description

technical field [0001] The invention relates to the fields of high-speed train broadcasting systems and subway broadcasting systems, in particular to a train full-function digital-analog hybrid intelligent broadcasting control box. Background technique [0002] The broadcast system is an important part of the train passenger information system. It provides functions such as station information broadcast, station information display, manual broadcast, manual intercom, and emergency intercom in emergency situations during train operation. From the perspective of application , played a very important role. [0003] The internal system structure of the traditional driver-operated terminal equipment is single, and the system communication only uses analog communication or digital communication. When a fault occurs, the system will directly crash and the system will not work normally, which will affect the reliability of the system; although the current broadcasting system on the ...

AI Technical Summary

Problems solved by technology

[0003] The internal system structure of the traditional driver-operated terminal equipment is single, and the system communication only uses analog communication or digital communication. When a fault occurs, the system will directly crash and the system will not work normally, which will affect the reliability of the system; although the current broadcasting system on the market can realize broadcasting system functions, but in terms of system architecture design, in the face of complex emergency environments, once the network fails, only part of the functions can be realized, with low reliability, single structure, and poor adaptability

[0004] In addition, the driver’s microphone and speaker of some terminal equipment are separated, there is no prompt for button operation, the interface is single, and the function is single, which cannot meet the current technical requirements, and some are even composed of pins drawn from the control host. Poor, easy to misuse, the IO communication port between the devices has a long pin lead, which is susceptible to interference and signal attenuation, and the system stability is poor

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