Communication method base on dual-network redundant universal network model

Abstract

The invention relates to a communication method based on a dual network redundancy general network model, which comprises the steps of: constructing a redundant network; constructing redundant equipment; broadcasting data; transmitting the data; and managing a node module. Compared with the prior art, the invention provides an extremely abstract general network model, thereby separating a logic application layer and a network communication layer and ensuring the reliable data transmission by the redundant network by using the serial-number repeated packet filtering technology; a minimal path for transmitting the data is dynamically calculated according to the network connection relationship among all the network nodes, thus realizing the arbitrary point-to-point communication among all the modules; the master/backup roles of the node are switched in real time according to the master/backup states of the node in the system, thus realizing the automatic conversion of the sending and receiving of the data; illegal connection is actively rejected according to the configuration of the system nodes, thus ensuring the safe access of the whole system.

Description

Technical field [0001] The invention relates to providing a highly reliable network model to support an intelligent train automatic monitoring system, connecting these scattered devices through a network, and particularly relates to a communication method based on a dual-network redundant general network model. Background technique [0002] The intelligent automatic train monitoring system is the core of the entire subway dispatching command. Dispatchers can check train operation information in real time through the intelligent automatic train monitoring system to ensure that the order of the entire train organization is smooth and reasonable. At the same time, according to the passenger flow situation on the spot, reasonable deployment of vehicles. In some emergencies, the intelligent train automatic monitoring system can intervene in the operation of the train in real time to ensure the operation order. Therefore, the system needs to ensure that the network communication cannot...

AI Technical Summary

Problems solved by technology

[0005] In the past, the automatic train monitoring system implemented the communication method based on the maintenance of the underlying API of Socket. Different equipment models had to maintain the communication by themselves, which increased the number of failure points.

In addition, the same dual-network communication adopts a cold backup method. In the case of a network failure, it will switch to another network, resulting in a momentary flash disconnection of the dispatching system and re-initialization of the equipment.

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