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Redundant network system for train door

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 effects of saving door network cables, reducing manufacturing costs, and improving safety and reliability.

Active Publication Date: 2019-09-06
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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  • Redundant network system for train door
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  • Redundant network system for train door

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 As shown, specifically including:

[0039] The slave control unit group includes several slave control units, and each slave control unit corresponds to a door, namely figure 2 In the LDCUn, the first CAN communication module and the second CAN communication module in each slave control unit are connected sequentially through the first CAN bus and the second CAN bus, forming the first CAN subnet (ie 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 In MDCU1, the first CAN communication module and the second CAN communication module in the first master control unit respectively communicate with the first CAN communication module in the slave control unit at the first end (that is, the head end) of the slave control unit group Is conn...

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 redundant network system for train doors also includes a second main control unit;

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

[0049] Set the first CAN subnet or the second CAN subnet as the default CAN network, and the corresponding data is valid data. The other CAN subnet is only used as a backup CAN network. Only when the default CAN network fails, the data of the CAN network is backed up. effective.

[0050] In a specific implementation of the embodiment of the present invention, the first main control unit and the second main control unit are conne...

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 end of the slave control unit group;

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

[0057] The redundant network system for train doors further 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 a train control and m...

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Abstract

The invention discloses a redundant network system for a train door. The system comprises a slave control unit group (composed of a plurality of slave control units) and a first master control unit, and a first CAN communication module and a second CAN communication module in each slave control unit in the slave control unit group are sequentially connected through a first CAN bus and a second CANbus respectively to form a first CAN subnet and a second CAN subnet. 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 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 collectsthe vehicle door information stored in all the slave control units and transmits the vehicle door information to the train control and management system, and the first master control unit further receives the TCMS data information sent by the train control and management system and forwards the TCMS data information to all the slave control units through the first CAN subnet or the second CAN subnet. According to the system, the problem that the network does not have a redundancy function can be solved, the safety and reliability of the train network are improved, and the manufacturing cost ofvehicles can be reduced.

Description

Technical field [0001] The invention specifically 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 the door control units (Electric Door Contril Unit, EDCU) on the train are Connect to the switch through the network cable, and realize the data exchange with the train control and management system through the switch, see figure 1 . Since the door control unit is one of the most numerous equipment in all vehicle equipment, if all door control units and switches are connected in a star shape, it will inevitably occupy more switch network ports, which will inevitably increase the number of switches. Increasing the manufacturing cost of the vehicle is difficult to be accepted by the vehicle manufacturer; in addition, the use of a star topology...

Claims

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Application Information

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Patent Type & Authority Applications(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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