Passenger train broadcast control method

A control method and technology for railway passenger cars, applied in broadcasting system control, specific broadcasting applications, broadcasting transmission systems, etc., can solve problems that cannot fundamentally prevent broadcasting audio faults, cannot realize high-quality multi-channel broadcasting, and passengers cannot hear broadcasting clearly Sound and other problems, to achieve the effect of improving hearing comfort, simple structure, and improving broadcast sound quality

Active Publication Date: 2014-11-19
CRRC NANJING PUZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Passenger train broadcast control method

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Experimental program
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Effect test

Embodiment 1

[0055] Such as figure 1 As shown, the railway passenger car radio control method of the present embodiment includes the following steps: the PIS controller detects the operating status of the broadcast system, and the communication status Y1 between the PIS controller and the carriage controller is normally 0, abnormal is 1, and the PIS The controller sends detection signals to the car controller and judges the communication status between the PIS controller and the car controller according to formula (1) (ie Y1=0). When Y1=0, it means that the communication between the PIS controller and the car controller If the communication state between the car controller and the speaker is normal, go to the next step; the car controller detects the operation status of the loudspeaker and the passenger emergency intercom. Set the communication status Y2 between the car controller and the speaker to be 0 if it is normal, and 1 if it is abnormal. Set the car controller The communication sta...

Embodiment 2

[0058] The difference between this embodiment and Embodiment 1 is that: when the PIS controller detects the operation status of the broadcasting system, the PIS controller sends a detection signal to the car controller, and according to the formula (1) (that is, Y1=0), the PIS controller and the car The communication status between the controllers is judged, and when Y1=1, the operation is stopped. Then, according to the actual situation, it is manually judged whether re-operation is required, and if re-operation is required, repeat this step, otherwise the operation ends.

Embodiment 3

[0060] The difference between this embodiment and Embodiment 1 is that when the car controller detects the operating conditions of the loudspeaker and the passenger emergency intercom, the car controller sends a detection signal to the speaker and the passenger emergency intercom and according to the formula (3) (i.e. Y2 =0 and Y3=0) to judge the communication state between the car controller and the loudspeaker and passenger emergency intercom, when Y2=1 and Y3=0, or Y2=0 and Y3=1, or Y2=1 and When Y3=1, stop the operation. Then, according to the actual situation, it is manually judged whether it is necessary to re-operate, if it is necessary to re-operate, return to the previous step, otherwise the operation ends.

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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...

Claims

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Application Information

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IPC IPC(8): H04H20/62H04H20/65H04H60/09
Inventor 孙永才温晋峰徐君尹琛
Owner CRRC NANJING PUZHEN CO LTD
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