Measuring point label name updating method and system and storage medium

Abstract

The invention discloses a measuring point label name updating method and system and a storage medium, and provides a method for updating a picture measuringpoint label name based on background monitoring. The method comprises the following steps of comparing the received measuring point information with the measuring point information stored in a database, and once the measuring point information generates a message, immediately generating a data change signal and informing a data acquisition thread of each picture which is opened at present one by one, wherein the data acquisition threads can synchronize the measuring point label names, so that the situation that the label names (hardware addresses) of the measuring points are changed, the picture and data acquisition process cannot be found in time, and consequently the label names are not matched is avoided; and the validity of the data acquired by the data acquisition threads and the correctness of the data displayed on the pictures are ensured.

Description

technical field [0001] The invention belongs to the field of methods for updating tag names of measuring points, and in particular relates to a method, system and storage medium for updating tag names of measuring points. Background technique [0002] In the distributed control system, each screen opened by the host computer screen monitoring software displays the real-time data of all measuring points on the current screen, and each screen has a data acquisition thread, which maintains a subscription list of measuring points based on the mapping structure. Store the key-value pairs of all measuring points (measuring point identifiers, measuring point hardware addresses) on the screen, and the data acquisition thread requests the process control station to subscribe to the real-time data of the measuring points. [0003] In the engineering configuration link, when the hardware address of the measuring point on the opening screen changes during the logic configuration process...

AI Technical Summary

Problems solved by technology

[0003] In the engineering configuration link, when the hardware address of the measuring point on the opening screen changes during the logic configuration process, after it is sent to the process control station, the hardware address of the measuring point in the process control station will change. If the screen and data If the acquisition process cannot be detected in time, there will be a situation where the measuring point does not match its hardware address, the real-time data collected by the data acquisition thread will be invalid or even wrong, the data displayed on the screen will also be abnormal, and the screen monitoring function will fail

Images