Method for realizing locomotive marshalling by using WTB-Ethernet gateway

A locomotive reconnection and Ethernet technology, applied in the field of rail transit, to achieve the effect of fast response, fast monitoring, and timely response

Pending Publication Date: 2020-10-09
XIAN XIANGXUN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are more and more manufacturers designing this reconnection product in the rail market, and the corresponding products of manufacturers in foreign markets are relatively more mature, but for the domestic rail market, foreign products often cannot meet specific application requirements. performance, reliability, safety, and ease of maintenanc

Method used

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  • Method for realizing locomotive marshalling by using WTB-Ethernet gateway
  • Method for realizing locomotive marshalling by using WTB-Ethernet gateway

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Example Embodiment

[0024] The marshalling logic of the present invention runs in the Nios+UC / OS system with strong real-time performance. Its main purpose is to realize the reconnection of locomotives. The innovative principle is to maintain three tasks in the UC / OS system, including a master Task and two auxiliary tasks.

[0025] The main task is to complete the initial operation of the marshalling process to switch between node startup, named master, named slave, teach master, regular master, regular slave, learning master, learning slave, named slave and unnamed slave. The switching speed reaches the us level, and the switching between the states is completed by whether there is an event trigger. The main task and the auxiliary task are converted to each other through interruption. This mechanism will not have any impact on the data transmission in the group; in addition, it is also maintained The entire initial operation process from the detection of the main device to the completion of the dev...

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Abstract

The invention provides a method for realizing locomotive marshalling by using a WTB-Ethernet gateway, so as to adapt to the specific application requirements of domestic locomotives, meet the nationalstandard IEC-61375, and realize marshalling among locomotives with different models and different power systems. Three tasks are maintained in a UC/OS system and comprise a main task and two auxiliary tasks. In the process of detecting the equipment, the main task and the auxiliary tasks are both in a running state or a waiting state, task switching is carried out at any time to complete marshalling of newly added equipment, meanwhile, the auxiliary tasks continuously send a detection frame to determine whether a new node is added or not, and the method can monitor the addition of the equipment in real time within a ms-level time range.

Description

technical field [0001] The invention belongs to the field of rail transit, and relates to a method for realizing locomotive reconnection and marshalling by using a WTB-Ethernet gateway. Background technique [0002] Train communication network is a network technology that integrates train communication, control and maintenance developed on the basis of serial communication network. Most domestic train communication networks adopt the TCN bus standard of MVB+WTB, of which the WTB bus is mainly used for train-level communication, with a transmission rate of 1Mbps to realize the transmission of process data and message data. Its biggest feature is that it has the function of train initial operation; At present, domestic locomotives are reconnected using the WTB bus, which meets the frequent connection of train formations and various train vehicles that need dynamic formation. It is suitable for dynamic formation of various passenger, freight and dispatching vehicles. The curren...

Claims

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Application Information

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IPC IPC(8): H04W4/42H04W40/24H04W40/32B61B1/00H04L29/08
CPCH04W4/42H04W40/32H04W40/248H04L67/12B61B1/00
Inventor 刘巍张成胡珂
Owner XIAN XIANGXUN TECH
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