Real-time monitoring system data recording method based on LabVIEW

Abstract

The invention provides a real-time monitoring system data recording method based on LabVIEW. The method comprises the following steps of using a LabVIEW language to build a file in the format of a data record file; defining different data types of elements needing to be recorded by a real-time monitoring system in the file acquired in the first step; recording the data of each element in the second step in real time when a real-time monitoring system event occurs; storing the file when the recorded data reaches a preset requirement, and meanwhile building the new file record subsequent data in the format of the data record file; after the elements needed by the real-time monitoring system are completely recorded, screening and deleting blank files of the files in the fourth step. The real-time monitoring system data recording method based on the LabVIEW is simple in program frame, strong in program self-adapting and response capabilities, can comprehensively record real-time data without missing, the file I / O efficiency is high, the small disk space is occupied, and the requirement of long-term recording can be met.

Description

technical field [0001] The invention belongs to the technical field of computer data collection and processing, and in particular relates to a data recording method for a real-time monitoring system based on LabVIEW. Background technique [0002] The development of computer technology and bus technology makes the PC-centered real-time monitoring system play an increasingly important role in modern test engineering. With the continuous improvement of the parallel processing capability of the operating system and processor, people also put forward higher requirements for the function and complexity of the real-time monitoring system. When a complex real-time monitoring system is working, people not only hope to realize the necessary monitoring and control functions, but also hope to have a set of reliable and effective mechanisms for real-time recording of on-site data, so as to achieve data backup and post-event data analysis. Operational evaluation, auxiliary troubleshootin...

AI Technical Summary

Problems solved by technology

[0004] Existing PC-based real-time monitoring system data recording methods generally have the following disadvantages: 1. Most of the data is stored in text form, the file I / O efficiency is low, the disk space is large, and data blockage will occur during long-term continuous recording. Data loss, crashes, etc.; ②The recorded information is not comprehensive, and most of the actions of the user operating the controls on the monitoring interface are not recorded; ③The timed cycle program structure is generally used to record data. When the bus baud rate changes, the bus data may be lost. , poor program adaptability

And when recording user actions, it is necessary to continuously poll the status of the user interface controls in a loop. The program framework is cumbersome, and the polling process will consume considerable CPU processing time. If the user executes too quickly, the user's input may be missed, and the program responds Weak ability

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