Distributed multi-hop networking method applicable to double heading marshalling of heavy load locomotive

Abstract

The present invention discloses a distributed multi-hop networking method applicable to double heading marshalling of a heavy load locomotive. The method comprises: a current locomotive scans a channel; the current locomotive establish a network by itself if the current locomotive does not receive the NCFG information from other locomotives in a first preset time period; the current locomotive takes other locomotives as sponsor locomotives and joins the network where the sponsor locomotives are located if the current locomotive receives the NCFG information from other locomotives in the first preset time period and receives the NCFG information from the same locomotive twice in a second preset time period. According to the invention, each locomotive is taken as one network node and completes network entry, networking, network maintenance, resource scheduling and the like by themselves, therefore the reliability and the availability of the double heading marshalling of a heavy load locomotive are effectively enhanced, the robust networking is realized in the condition the locomotive breaks down or a link breaks down, and the network survivability is effectively improved.

Description

technical field [0001] The invention relates to the technical field of heavy-duty locomotive marshalling, in particular to a distributed multi-hop networking method suitable for heavy-duty locomotive marshalling. Background technique [0002] With the heavy load of railway freight, the marshalling method of only relying on a single locomotive to pull trains has limitations: the traction force of a single locomotive is not enough to pull a larger train, and the safety factor of train operation is reduced when the length of the train marshal is increased. Therefore, it is the direction of development for heavy-haul railways to use multiple locomotives to drive large and heavy-duty combined trains, and to run heavy-duty combined trains firstly needs to solve the problem of multiple locomotive marshalling. [0003] Locomotive reconnection can be divided into zero-distance reconnection and long-distance reconnection according to reconnection distance. Zero-distance reconnection ...

AI Technical Summary

Problems solved by technology

[0002] With the heavy load of railway freight, the marshalling method of only relying on a single locomotive to pull trains has limitations: the traction force of a single locomotive is not enough to pull a larger train, and the safety factor of train operation is reduced after the length of the train marshalling is increased

[0004] At present, the communication between double-connected locomotives is generally realized by double-connected cables. This method has high reliability, but there are great limitations: the double-connected cables are easily broken and damaged due to vibration during the operation of the locomotive, which affects the quality of data transmission. Reliability, especially not suitable for long-distance reconnection of locomotives; in addition, it is time-consuming and laborious to connect and fix reconnection cables on the vehicle or to disassemble them, resulting in a waste of labor in the maintenance department

This method adopts a centralized multi-hop network. As the number of marshalling locomotives increases and the number of hops increases, the implementation speed of the network will be very slow, and once a locomotive fails, the entire marshalling process will be paralyzed

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