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Trailer network system and networking method thereof

A technology of network system and trailer, which is applied in the field of trailer network system and its networking, and can solve problems such as network instability, manual completion, and poor hardware computing power

Pending Publication Date: 2020-09-29
CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) The network is unstable during the operation of the train; (2) Each gateway of the train can only communicate with one subsystem, and the interaction is poor; (3) When collecting the trailer data of the whole train, it is prone to communication congestion or packet loss (4) The computing power of the hardware is poor, the processing speed is slow, and the interaction of the user interface is poor; (5) The broadcast information such as the arrival of the train needs to be completed manually, which is very inconvenient

Method used

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  • Trailer network system and networking method thereof
  • Trailer network system and networking method thereof
  • Trailer network system and networking method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1, power car and common trailer mixed grouping.

[0048] Such as figure 1 As shown, a first central control unit 1 and a first gateway 2 are arranged in the power car. The trailer network system includes: multiple trailer units (not shown in the figure). Trailer units can be understood as all trailers in a train formation except power cars. For example, take "one drive and three trailers" as the train formation, and 3 trailers in this formation form a trailer unit. Each trailer unit includes multiple node groups (not shown in the figure). Each node group includes network communication nodes 3 , multiple communication terminals 4 and multiple subsystems 5 .

[0049] The first central control unit 1 is connected to a plurality of node groups through a first gateway 2 . Among them, the first central control unit 1 and the first gateway 2 are connected by a multifunction vehicle bus (Multifunction Vehicle Bus, MVB), and the first gateway 2 and multiple node ...

Embodiment 2

[0058] Embodiment 2, power car, common trailer, mechanic trailer mixed formation.

[0059] Such as image 3 As shown, a first central control unit 1 and a first gateway 2 are arranged in the power car. The trailer network system includes: multiple trailer units. Each trailer unit includes multiple node group trailer units, a train host 7 , a monitoring terminal 6 and a passenger information system 8 . Each node group includes network communication nodes 3 , multiple communication terminals 4 and multiple subsystems 5 . It should be noted that in a small train formation, usually only one mechanic trailer is provided, that is to say, in this train formation, only one train host 7, one monitoring terminal 6 and passenger information system 8 are included.

[0060] The first central control unit 1 is connected with the train host 7 through the first gateway 2, the first gateway 2 and the train host 7 are connected through train-level Lonworks, the train host 7 is connected with...

Embodiment 3

[0067] Embodiment 3, power car, common trailer, trailer with driver's cab mixed grouping.

[0068] Such as Figure 5 As shown, a first central control unit 1 and a first gateway 2 are arranged in the power car. The trailer network system includes: multiple trailer units. Each trailer unit includes multiple node group trailer units, a second central control unit 10 and a second gateway 9 . Each node group includes network communication nodes 3 , multiple communication terminals 4 and multiple subsystems 5 . It should be noted that, in a train, usually only the first and last trailers are trailers with cabs.

[0069] The first central control unit 1 is connected to a plurality of node groups through a first gateway 2 . The second central control unit 10 is connected to a plurality of node groups via the second gateway 9 .

[0070] Wherein, between the first central control unit 1 and the first gateway 2, the second central control unit 10 and the second gateway 9 are all co...

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PUM

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Abstract

The invention relates to a trailer network system and a networking method thereof. The trailer network system comprises a plurality of trailer units; each trailer unit comprises a plurality of node groups; each node group comprises a network communication node, a plurality of communication terminals and a plurality of subsystems; the plurality of node groups are connected with a first central control unit of the power vehicle through a first gateway of the power vehicle; the first central control unit is connected with the first gateway through a multifunctional vehicle bus (MVB), and the first gateway is connected with the plurality of node groups through a train-level local area operation network Lonworks; the network communication node of each node group is connected with a plurality ofcommunication terminals through a controller area network CAN; and each communication terminal is connected with one or more subsystems through RS485 or RS232.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a trailer network system and a networking method thereof. Background technique [0002] The 25T passenger car is one of the models of the 25-type passenger car series of China Railway. It is designed for the fifth major speed increase of China Railway and is the current main railway train. But the 25T type train has the following problems: [0003] (1) The network is unstable during the operation of the train; (2) Each gateway of the train can only communicate with one subsystem, and the interaction is poor; (3) When collecting the trailer data of the whole train, it is prone to communication congestion or packet loss (4) the computing power of the hardware is poor, the processing speed is slow, and the user interface interaction is poor; (5) the broadcast information such as the train arrival station needs to be completed manually, which is very inconvenient. [0004] T...

Claims

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Application Information

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IPC IPC(8): H04L12/40H04L29/08
CPCH04L12/40013H04L12/40176H04L67/12H04L2012/40215
Inventor 潘惟泉姚鹏修彭文静王凯杨东军
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST