A concurrency conflict resolution method for transmission link network communication

Abstract

The invention relates to a concurrent conflict resolution method for transmission LINK network communication. The method adopts data line arbitration processing and data pipeline storage technology. When two or more data receiving ports have data forwarding requests at the same time, the data line arbitration The processor will allow the data that arrives at the data receiving port first to enjoy the highest forwarding priority, and the data will be directly forwarded, while the data of the other ports will enter the corresponding data first-in-first-out buffer, and the data in the data first-in first-out buffer The corresponding port numbers are sequentially sent to the data forwarding queue register according to the order in which the data arrives, and the data arriving at the same time has a higher priority with the smaller port. The serial data received by one or more data receiving ports can be forwarded synchronously to the rest of the serial data sending ports sequentially in broadcast mode, which overcomes the problems of data line conflict and blocking during the data forwarding process.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a concurrent conflict resolution method for transmission LINK network communication. Background technique [0002] The transmission system network of the hot-rolled 1580mm production line is a special protocol network, which adopts the master-slave structure communication mode (Master-Slave), and the basic automation is the master station (Master), which can be connected to a maximum of 127 slave stations (Slave), such as figure 1 shown. [0003] The master-slave control of the transmission system usually refers to two sets of transmission controllers. When the corresponding transmission motors (motors) are controlled separately for synchronous use, the speed setting values ​​of the two transmission controllers are mutually selected; if a certain The speed setting value of one set of transmission controller is transmitted to another set of transmission controller, ...

AI Technical Summary

Problems solved by technology

from figure 1 It can be seen that the slave stations are completely independent of each other, and they do not know the existence of other slave stations. It is for this reason that there is contention when reporting data to the master station. Data conflict and blocking, the occurrence of communication conflicts, resulting in communication errors

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