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A redundant network system for train doors

A redundant network and door technology, applied in the field of redundant network systems, can solve the problem that the network does not have redundant functions, and achieve the effect of saving door network cables, improving safety and reliability, and saving quantity

Active Publication Date: 2021-10-26
NANJING KANGNI ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the present invention proposes a redundant network system for train doors, which can solve the problem that the network does not have redundant functions, and at the same time achieve the problem of reducing the manufacturing cost of the vehicle

Method used

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  • A redundant network system for train doors
  • A redundant network system for train doors
  • A redundant network system for train doors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The embodiment of the present invention provides a redundant network system for train doors, which can be applied to each car on the train, such as figure 2 shown, including:

[0039] The slave control unit group, the slave control unit group includes several slave control units, and each slave control unit corresponds to a car door respectively, namely figure 2 In the LDCUn in each slave control unit, the first CAN communication module and the second CAN communication module are respectively connected in sequence through the first CAN bus and the second CAN bus to form the first CAN subnetwork (i.e. figure 2 CAN subnet 1) and the second CAN subnet (i.e. figure 2 CAN subnet in 2);

[0040] The first main control unit, namely figure 2 MDCU1 in the first main control unit, the first CAN communication module and the second CAN communication module in the first master control unit are respectively connected with the first CAN communication module in the slave contro...

Embodiment 2

[0047] When the number of slave control units is greater than 4, the embodiment of the present invention provides another redundant network system for train doors, based on embodiment 1, such as image 3 As shown, the shown redundant network system for train doors also includes a second main control unit;

[0048] The second main control unit, namely image 3 In the MDCU2, the second control unit is respectively connected with the first CAN communication module and the second CAN communication module in the slave control unit at the tail end of the slave control unit group;

[0049] Set the first CAN subnet or the second CAN subnet as the default CAN network, the corresponding data is valid data, and the other CAN subnet is only used as the backup CAN network, and only when the default CAN network fails, the data of the backup CAN network efficient.

[0050] In a specific implementation manner of the embodiment of the present invention, the first main control unit and the se...

Embodiment 3

[0054] When the number of slave control units is greater than 4, the embodiment of the present invention provides another redundant network system for train doors, based on embodiment 1, such as Figure 4 As shown, it also includes a second main control unit;

[0055] The second master control unit (MDCU2), the second control unit is respectively connected to the first CAN communication module and the second CAN communication module on the slave control unit at the tail end of the slave control unit group;

[0056] Set the first CAN subnet or the second CAN subnet as the default CAN network, the corresponding data is valid data, and the other CAN network is only used as the backup CAN network, only when the default CAN network fails, the data of the backup CAN network is valid ;

[0057] The redundant network system for train doors also includes a first Ethernet switch and a second Ethernet switch;

[0058] One of the ports of the first Ethernet switch is used to connect to ...

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Abstract

The invention discloses a redundant network system for train doors, which includes a slave control unit group (composed of several slave control units) and a first master control unit, and the first slave control unit in the slave control unit group The CAN communication module and the second CAN communication module are respectively connected in sequence through the first CAN bus and the second CAN bus to form the first CAN subnet and the second CAN subnet; the first CAN communication module and the first CAN communication module in the first main control unit The second CAN communication module is respectively connected with the first CAN communication module and the second CAN communication module in the slave control unit at the first end of the slave control unit group; the first master control unit collects the car door information stored in all slave control units, And transmit it to the train control and management system, which also receives the TCMS data information sent by the train control and management system, and forwards it to all slave control units through the first CAN subnet or the second CAN subnet. The invention can solve the problem that the network does not have a redundant function, improve the safety and reliability of the train network, and at the same time reduce the manufacturing cost of the vehicle.

Description

technical field [0001] In particular the invention relates to a redundant network system for train doors. Background technique [0002] The Ethernet communication between the existing rail transit vehicle door system and the train control and management system (Train Control Management System, TCMS) mainly adopts a star topology, that is, all electric door control units (Electric Door Contril Unit, EDCU) on the train are Connect to the switch through a network cable, and realize data exchange with the train control and management system through the switch. For details, see figure 1 . Because the door control unit is one of the most numerous devices in all vehicle equipment, if a star connection is adopted between all the door control units and the switch, it will inevitably occupy more network ports of the switch, which will inevitably increase the number of switches, thereby Increase the manufacturing cost of the vehicle, and it is difficult to be accepted by the vehicle ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/40H04L12/939B61L15/00
CPCB61L15/0018H04L12/40195H04L49/552H04L2012/40215
Inventor 詹先理黄天太许洪强朱魏魏张茂茂茅飞
Owner NANJING KANGNI ELECTRONICS TECH
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