Vehicle-mounted passenger information broadcasting system applied to rail transit environment

Abstract

The invention discloses a vehicle-mounted passenger information broadcasting system applied to a rail transit environment. A broadcast master controller, and a broadcast console and a loudspeaker which are electrically connected with the broadcast master controller are respectively arranged in a driver's cab at the head and the tail of the vehicle; the broadcast master controller communicates with a train control system, receives a signal sent by a train communication network in real time, automatically triggers corresponding audio information and transmits the audio information to each broadcast passenger room controller through a broadcast audio line; a broadcasting passenger room controller and a loudspeaker electrically connected with the broadcasting passenger room controller are installed in each section of passenger room between a vehicle head and a vehicle tail, and the broadcasting passenger room controller drives the loudspeaker to broadcast through a power amplifier. The broadcast consoles, the broadcast master controllers and the broadcast passenger room controllers are connected and communicated through broadcast buses, and in addition, the broadcast main controllers and the broadcast passenger room controllers are connected and communicated through an Ethernet ring network. The broadcasting system is subjected to an anti-seismic test, an anti-electromagnetic interference test, an electrical test and the like, and meets the requirements of rail transit.

Description

technical field [0001] The invention belongs to the field of rail transit, and in particular relates to a vehicle-mounted passenger information broadcasting system applied to the rail transit environment in this field, which has the functions of train operation information broadcasting, multimedia video with audio, emergency command and evacuation, and the like. Background technique [0002] The development of the subway in recent years is obvious to all. The importance of the subway in people's lives is becoming more and more prominent, and people's requirements for the quality of subway service are also getting higher and higher. Broadcasting is the most basic point in subway service items. The subway car broadcasting system is no longer limited to the simple station broadcasting function, and the broadcasting method has also changed from traditional analog broadcasting to digital broadcasting. [0003] At present, almost all newly-built subways, high-speed rail and other ...

AI Technical Summary

Problems solved by technology

It can be seen that the circuit of the analog broadcasting system is very complicated, the wiring is troublesome, and it is not easy to maintain, and the analog signal is easily affected by electromagnetic interference, the signal-to-noise ratio and redundancy are low, easy to be distorted, and the reliability is poor

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