A method for identifying the number of train formations

Abstract

The invention relates to a method for identifying a train marshalling number. The method comprises the following steps: (1), sending data representing that equipment is online; (2), identifying the number of marshalled MVB online equipment through an MVB interface by a gateway; (3), simultaneously receiving a WTB node number and online feature data sent by other gateways through an MVB and a WTB by the gateway, if so, performing the step (4), otherwise, performing the step (5); (4), marking that another gateway in the marshal is online; and telling other gateways the information through the WTB; (5), determining that a fault occurs if the number of same nodes cannot be received from the MVB and the WTB; (6), calculating a marshalling number; and (7), respectively calculating the marshalling numbers by two gateways in the same marshal, obtaining the maximal value of calculation results of the two gateways if a calculation result of another gateway in the marshal is obtained through the MVB, otherwise, obtaining a calculation result itself. According to the invention, the marshalling number is correctly identified in an environment having a higher failure rate; and the error-tolerant rate and the redundant performance of the current topological network are increased.

Description

Technical field [0001] The invention mainly relates to the field of train communication, and particularly refers to a method suitable for identifying the number of trains in a train set. Background technique [0002] Due to operational requirements, trains often have to freely reconnect multiple marshalling groups to form reconnected marshalling groups to improve the passenger carrying capacity. As the degree of freedom of grouping increases, the difficulty of identifying the number of groups is increased. More importantly, the correct judgment of the number of groups under equipment failure. [0003] Equipment failures often include the identification error of the coupling signal, the communication error of the acquisition module, the failure or partial failure of the gateway module, etc. This makes the identification based on the coupling signal and the identification of the number of nodes very fragile. For example, if the IO channel of the acquisition link signal is broken, i...

AI Technical Summary

Problems solved by technology

If there is only one gateway failure in the entire marshalling, it is feasible to calculate the number of nodes to derive the number, but if each marshalling has a gateway device failure, although the network is still connected, through this simple calculation , does not yield the correct number of groups

It can be seen that although these existing solutions have certain fault tolerance, the fault tolerance rate is relatively low, and the maximum redundancy has not been achieved.

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