Peer-to-peer communication method and device based on DCS system

Abstract

The invention discloses a peer-to-peer communication method and device based on a DCS system. The method and system are applied to an operation station. The operation station is in communication connection with multiple controllers. Each controller is internally provided with a plurality of independent operation station communication pipelines. Each operation station communication pipeline comprises a plurality of independent page communication pipelines. The method includes the following steps that communication requests are sent to the controllers needing to be connected, and the operation station communication pipelines, distributed according to the communication requests, of the controllers are occupied; when a target page is opened, requests for the page communication pipelines arranged in the operation station communication pipelines are sent to the controllers; after information, responding to the requests, of the controllers is received, the page communication pipelines obtain data of corresponding data points from corresponding data regions. By means of the technical scheme, communication efficiency is high, and the efficient and high-speed peer-to-peer communication requirement of the large-scale DCS system can be met.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a DCS system-based peer-to-peer communication method and device. Background technique [0002] In DCS (Distributed Control System, distributed control system), the system network is a network that realizes communication between the monitoring level and the control level, generally industrial Ethernet, including at least two types of stations: process control station and operation station. Among them, the process control station collects, calculates and controls the on-site data through the controller, and the operation station is used for monitoring, operating and managing the on-site data. The controller and the operation station communicate with each other to complete data interaction. [0003] At present, the traditional peer-to-peer P-P mode is mostly used as the communication mode between the controller and the operation station. The traditional P-P mode regards the ...

AI Technical Summary

Problems solved by technology

[0005] First of all, the scale of the system is difficult to expand. When the scale of the system becomes larger, its communication efficiency becomes low and data update is slow

Since each site needs to communicate, the network load becomes very large, resulting in system instability

Secondly, this communication mode has high requirements on the network performance of the controller. It is difficult for the general embedded controller to meet the requirements. Only high-end processor chips can be configured, which increases the system cost.

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