Motor car broadcast simulation system

Abstract

The invention discloses an EMU broadcasting simulation system, which comprises a voice collection device arranged in a back-end monitoring center, a plurality of voice broadcast devices arranged in a simulated train waiting room, and the voice collection device is connected with the voice broadcast device through wired communication; the said The voice collection device includes an omnidirectional microphone, a directional microphone, an inverting circuit, a first amplifying circuit, an in-phase synthesizing ratio circuit, a second amplifying circuit and a second communication unit, and the output of the omnidirectional microphone is combined with an in-phase synthesizing circuit through an inverting circuit. The input of the proportional circuit is connected, the output of the directional microphone is connected with the input of the in-phase synthesis proportional circuit through the first amplifying circuit, the output of the in-phase synthesizing proportional circuit is connected with the second infinite communication unit through the second amplifying circuit, and the second communication unit is connected with the voice Broadcast device communication connection. The voice broadcasting device in the present invention is provided with an audio filtering unit, which can effectively filter out noise signals in the audio and improve the sound quality of the broadcasting audio.

Description

Technical field [0001] The present invention relates to the technical field of broadcasting systems, in particular to a train broadcasting simulation system. Background technique [0002] In the railway station, when the train starts to enter the station or the train is delayed or lost and found, the station management personnel need to notify the passengers through the broadcasting system. However, the sound quality of the existing station broadcasting system is poor, which leads to In a noisy environment, it is difficult for passengers to hear the broadcast content clearly. Summary of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a train broadcasting simulation system. The voice broadcasting equipment in the system is equipped with an audio filter unit, which can effectively filter out the noise signal in the audio and improve the sound quality of the broadcast audio. . [0004] The purpose of the present...

AI Technical Summary

Problems solved by technology

[0002] In the railway station, when the train starts to enter the station or the train is delayed, the lost and found, etc., the station management personnel need to notify the passengers through the broadcasting system, but the sound quality of the existing station broadcasting system is poor, resulting in this in the station. In a noisy environment, it is difficult for passengers to hear the content of the radio clearly

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