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Networked train broadcasting system and implementation method

An implementation method and technology for train broadcasting, applied in broadcasting related systems, transmission systems, broadcasting devices, etc., can solve problems such as the inability to fully synchronize the operation information of the main engine and the standby machine, the inability to use the tail car redundancy function, and the inability to play voice files. , achieve the effect of simplifying debugging and maintenance difficulty, avoiding card socket plugging, and saving costs

Pending Publication Date: 2020-04-28
北京华高世纪科技股份有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Software problem: there is a BUG (loophole) in the logic of radio station announcement; MP3 player board problem: poor contact of CF card, voice file cannot be played; abnormal input of door, five-kilometer and thirty-kilometer level signals;
[0011] The tail car redundancy function cannot be used when the main engine fails during single-driver driving; double main control failures are likely to occur when the network is interrupted; the operation information of the main engine and the backup machine cannot be fully synchronized; the switching of the redundant function is actually too slow, and it is better to "restart the main engine" in an emergency "Efficient and efficient

Method used

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  • Networked train broadcasting system and implementation method
  • Networked train broadcasting system and implementation method
  • Networked train broadcasting system and implementation method

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Embodiment 1

[0045] Embodiment 1: as figure 1As shown, a networked on-board broadcasting system, train broadcasting and passenger information processing module and switch expansion module, MVB (multi-function vehicle bus) communication module, level signal acquisition and processing module, marshalling network switch module, digital audio forwarding, The storage and multicast module, the video storage module and the audio processing module are respectively connected, and the power module is respectively connected with the above modules.

[0046] The ground PIS module and OCC module are respectively connected to the switch expansion module through 100M Ethernet, the TCMS module is connected to the MVB communication module through the TCU (TCMS communication unit), and the train level signal (DC110 / 24V) module is connected through the main control signal, door closing The signal, zero speed signal and 30km signal are connected with the level signal acquisition and processing module, and the ...

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Abstract

The invention discloses a networked train broadcasting system and an implementation method, and belongs to the technical field of urban rail transit vehicles and motor train units. A full Ethernet topology is adopted and is matched with a digital multimedia terminal. The POE power supply IEEE 802.3 af / at technology is adopted for the low-power-consumption terminal device. The switch adopts a dynamic host configuration protocol DHCP to automatically allocate the IP address of the terminal device. A VoIP technology is adopted to realize visual digital intercom. Based on a gigabit Ethernet communication technology, an embedded processor is used as a core, a full Ethernet topology, a digital multimedia terminal and an integrated control host are adopted, three subsystems are integrated with the Ethernet, and terminal device uses a POE power supply and DHCP technology.

Description

technical field [0001] The invention belongs to the technical field of urban rail transit vehicles and EMUs, and relates to a networked train broadcasting system and an implementation method. Background technique [0002] At present, the on-board broadcasting system of subway light rail or EMU generally adopts bus-type control technology and analog audio transmission technology; during the transmission process of carriages, the control signals and analog audio and video signals between the hosts of each carriage are easily affected by the environment and other system signals. Interference problem; the system needs to adopt the transmission mode of network topology. [0003] The broadcast failure rate of the existing technology is high: [0004] In the semi-automatic station reporting mode of the prior art, the broadcasting system performs station reporting logic operations through the level signal changes of the door, five kilometers and thirty kilometers. , jumping statio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04H60/32H04H60/11H04H20/59H04H20/62H04L12/24H04L1/22H04L29/12
CPCH04H60/32H04H60/11H04H20/59H04H20/62H04L41/0668H04L1/22H04L61/5014Y02D30/70
Inventor 刘伟
Owner 北京华高世纪科技股份有限公司
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