Passenger train broadcast control method

Abstract

The present invention relates to a passenger train broadcast control method, the method comprising following steps: 1, a PIS controller detects the operation status of a broadcast system; 2, a carriage controller detects the operation statuses of a loudspeaker and an emergency interphone for passengers; 3, the PIS controller judges whether the session request from a passenger is accepted; 4, the PIS controller generates response information and realizes the session between the passenger and a cab operator; 5, the PIS controller judges the status of the loudspeaker; 6, a volume control unit judges whether the output volume of the loudspeaker is normal; and 7, the volume control unit judges whether the output volume of the loudspeaker is clear. The present invention is simple in structure and convenient in installation, and not only has high reliability but also improves broadcast tone quality, so the broadcast is clearer and the comfort degree of passengers is increased.

Description

technical field [0001] The invention relates to an Ethernet-based digital network broadcasting control method for railway passenger cars, and is especially suitable for the field of vehicle audio broadcasting. Background technique [0002] With the rapid development of rail transportation, passengers have higher and higher requirements for the broadcasting system of railway passenger cars. Once the broadcasting system fails, it will have an immeasurable impact on the operation of the train, such as affecting the normal travel of passengers and causing operational accidents, etc. . The search found that the patent with the publication number CN103763053A discloses a broadcast controller and a train broadcast control system. This train broadcast control system can only output backup analog broadcast audio when the digital broadcast audio is abnormal, which makes the digital broadcast malfunction. , the car radio function will not be affected. According to the applicant's und...

AI Technical Summary

Problems solved by technology

At present, the vehicle-level and carriage-level broadcasting buses of the railway passenger car broadcasting system adopt analog signal transmission. Although analog broadcasting is widely used because of its simple structure, it also has the following problems: the broadcasting system is susceptible to electromagnetic environment interference and the broadcasting sound quality is poor, so it cannot be realized. Audio files in digital format are played directly on the terminal, and the change of vehicle marshalling makes the impedance and power of the system mismatch, or a transformer or speaker fails and burns out the power amplifier, which affects the entire broadcast. It cannot broadcast to multiple passenger rooms at the same time. Realization of high-quality audio multicasting

In addition, the broadcast volume is generally output at a fixed value. The broadcast volume of the whole train is fixed, and the driver cannot manually adjust it. As a result, passengers may not be able to hear the broadcast sound clearly during peak hours, and the broadcast volume is too loud during off-peak hours. Affect the hearing comfort of passengers

The search found that the patent with the publication number CN103763053A discloses a broadcast controller and a train broadcast control system. This train broadcast control system can only output backup analog broadcast audio when the digital broadcast audio is abnormal, and cannot fundamentally prevent broadcast audio glitch

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