DCS monitoring picture refreshing method, system and device, and readable storage medium

Abstract

The invention discloses a DCS monitoring picture refreshing method, system and device, and a readable storage medium. The method comprises steps of traversing picture layers, and building a layer data set; traversing all the layer data sets, and establishing a layer refreshing buffer area corresponding to each layer data set for the layer data set; according to the refresh cycles of the different picture layers, respectively establishing layer refresh threads, and according to the established layer refresh buffer area, establishing a thread refresh buffer area for the layer refresh threads; and starting all the established layer refreshing threads, and for each layer refreshing thread, carrying out periodic layer refreshing according to a refreshing period. According to the method, picture operation stability and the picture measuring point data refreshing rate can be improved.

Description

Technical field [0001] The present invention relates to the field of computer technology, and more particularly to a DCS monitoring screen refresh method, system, device, and readable storage medium. Background technique [0002] In the fire power plant decentralized control system, the operator completes the operation of the distributed control system through the monitoring screen, and the control command issued. The monitor screen can display the running data and device running status in real time, and provide commands to be issued and latched. Therefore, the real-time refresh function of the monitoring screen is especially important. The monitoring screen in the prior art uses the layers single-point update mode, according to the screen test Point data sources directly query the screen database and perform data updates, when the screen measuring point is large or the refresh frequency is high, the frequent access screen database can cause excessive data traffic, which affects ...

AI Technical Summary

Problems solved by technology

The monitoring screen can display operating data and equipment operating status in real time, and provide functions such as command issuance and locking. Therefore, the real-time refresh function of the monitoring screen is particularly important. In the prior art, the monitoring screen mostly adopts the layer single-point update mode. The point data source directly queries the screen database and updates the data. When there are many screen measurement points or the refresh frequency is high, frequent access to the screen database may lead to excessive data traffic, which affects the real-time acquisition of screen data and causes problems such as screen freezes.

In addition, most of the existing monitoring screens only support the same screen refresh cycle, and do not support setting the screen refresh cycle by layer, which has a certain impact on the screen refresh quality

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