Control box, communication method and control system for urban rail vehicle

Abstract

The invention discloses a control case for an urban rail vehicle, a communication method and a control system. The control case includes a case body disposed in a shielding case. The case body includes a case backplane and a case plug-in. The shielding case also comprises a communication processing module therein that converts communication signals of different standards into high-speed serial signals. The communication processing module is provided with more than one connector to communicate with different external communication devices in different standards. The communication processing module is separate from and connected with the case body. The case plug-in performs high-speed serial signal transmission with the communication processing module through the case backplane. The controlcase has the advantages of simple structure, small depth, good communication quality and shielding performance, and a controllable communication node branch wire harness length.

Description

technical field [0001] The invention relates to the technical field of urban rail transit vehicles, in particular to a control box for urban rail vehicles, a communication method and a control system. Background technique [0002] In different carriages of urban rail vehicles, control boxes need to be set up for vehicle control, and a large amount of data needs to be transmitted between the control boxes of different carriages to achieve coordinated control. Therefore, whether the chassis can perform fast, accurate and effective signal transmission, It will directly affect the timeliness, safety and reliability of vehicle control. The interactive data between the chassis in the vehicle must pass through a communication network of a specific standard, such as MVB, CAN, Ethernet, LONWORKS, etc., and the communication requirements of different communication standards are different. For example, for the communication of the MVB standard, MVB network nodes are required The branc...

AI Technical Summary

Problems solved by technology

This solution can realize the shielding effect of 360° ring connection, but also in the case of requirements for the branch harness of the communication node, the branch of the node must be branched at the single board, and the branch cannot be branched at the junction box, otherwise it will still lead to communication. The problem of too long branch wiring harness of the node, so in order to ensure the length control of the branch wiring harness of the communication node, the branch line of the communication node must be set on the communication plug-in, and the branch line cannot be carried out in the connector on the back panel of the chassis; and the wiring harness in this scheme The shielding process is complicated. The wiring harness from the junction box to the plug-in needs to use shielded cables. The outgoing wires at the junction box and the incoming wires of the single board also need to strictly follow the wiring requirements of the shielded wires, and provide shielding ground, vibration and shielding grounding of the internal wiring harness. must also be treated specially

[0006] To sum up, the current communication connection methods between chassis are either not enough to realize the shielding effect of 360° ring connection, or cannot meet the requirements of the branch line length of communication nodes, or make the depth of the chassis too large, so it is urgent to provide a A control box applied to urban rail vehicles to meet the communication requirements of the urban rail vehicle control box, while ensuring the communication quality, it can reduce the depth of the box, and at the same time realize the controllable length of the communication node branch harness

Images