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Data storage and reading system and method based on LabVIEW

A technology of data storage and waveform storage, which is applied in database indexing, relational database, database model, etc., and can solve problems such as inconvenient improvement and analysis of special equipment and sensors

Pending Publication Date: 2021-01-29
RES INST OF PHYSICAL & CHEM ENG OF NUCLEAR IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The test analysis method of special equipment and the sensor signal algorithm can only be verified in the field test, which is not convenient for the improvement and analysis of special equipment and the sensor itself

Method used

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  • Data storage and reading system and method based on LabVIEW
  • Data storage and reading system and method based on LabVIEW
  • Data storage and reading system and method based on LabVIEW

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 1 As shown, a data storage and reading system based on LabVIEW includes an industrial computer 1 and multiple data acquisition cards 2 and input and output cards 3 respectively connected to the industrial computer 1, and each data acquisition card 2 is connected to multiple acquisition channels 4. The input and output card 3 is connected to multiple acquisition channels 4 and at least one output channel 5 .

[0041] The multiple data acquisition cards 2 and the input and output cards 3 are arranged in parallel.

[0042] The connection is arranged in parallel with a plurality of the acquisition channels 4 of the same data acquisition card 2 .

[0043] A plurality of acquisition channels 4 and output channels 5 connected to the input and output card 3 are arranged in parallel.

[0044] The industrial computer has a built-in data analysis module, a data access module and a multi-channel waveform storage module. The data analysis module filters the sensor ...

Embodiment 2

[0050] Based on Embodiment 1, the multi-channel data acquisition and storage method based on the data storage and reading system of LabVIEW comprises the following steps:

[0051] (i) system initialization;

[0052] (ii) Data acquisition card for parameter configuration;

[0053] (iii) Perform data filtering on the collected waveform signal;

[0054] (ⅳ) Multi-channel signals are displayed synchronously in the time domain, and the coordinates of the X and Y axes are automatically adjusted according to the signals;

[0055] (ⅴ) After performing peak and valley values ​​for each signal, perform FFT transformation to obtain the frequency and amplitude information of the corresponding channel signal, and display the frequency domain waveform of each signal;

[0056] (ⅵ) Through the time domain and frequency domain information of each signal, calculate the operating parameters of the equipment and store them in the database;

[0057] (ⅶ) Bundle multi-channel signal waveform data...

Embodiment 3

[0069] Based on Embodiment 1, the single-channel waveform data output method of the data storage and reading system based on LabVIEW includes the following steps

[0070] (i) system initialization;

[0071] (ii) Data acquisition card for parameter configuration;

[0072] (iii) Read the waveform data from the data storage file, and extract the information of the single signal through data processing;

[0073] (ⅳ) Time-domain display of single-channel signals, and automatic adjustment of X and Y axis coordinates according to the signal amplitude;

[0074] (ⅴ) After performing peak and trough values ​​on the signal, perform FFT transformation to obtain the frequency and amplitude information of the corresponding channel signal, and display the frequency domain waveform of the signal;

[0075] (ⅵ) Generate waveform signals and drive the I / O card to output waveform signals.

[0076] The specific operation process of this embodiment is as follows image 3 shown, including:

[0...

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Abstract

The invention discloses a data storage and reading system and method based on LabVIEW, and the system comprises an industrial computer, a plurality of data collection cards and an input and output card; the data collection cards and the input and output card are respectively connected with the industrial computer, each data collection card is connected with a plurality of collection channels, andthe input and output card is connected with a plurality of collection channels and at least one output channel. The method comprises a multi-channel data acquisition and storage method and a single-channel waveform data output method of the data storage and reading system based on LabVIEW. The invention is used for data acquisition, analysis and storage of sensor signals of special equipment and control of data reading and output, and the function of analyzing the sensor signals of the special equipment in a laboratory is achieved; a PCI data acquisition card is adopted, development is completed on an industrial computer by means of LabVIEW software, and the functions of real-time acquisition, display, filtering, analysis, data access, waveform storage and single-channel output of waveformdata of multi-channel sensor signals are provided.

Description

technical field [0001] The invention belongs to the field of data storage and reading, and in particular relates to a data storage and reading system and method based on LabVIEW. Background technique [0002] The special equipment sensor is an important component to monitor its operating status and ensure its safe and stable operation. Therefore, it is necessary to carry out data acquisition, data analysis and storage on the signals of special equipment sensors. In the past, the sensor signal acquisition system of special equipment can only analyze and calculate the signal in real time, and does not have the function of storing the original signal waveform. The test analysis method of special equipment and sensor signal algorithm can only be verified in the field test, which is not convenient for the improvement and analysis of special equipment and sensor itself. Contents of the invention [0003] The present invention is proposed in order to overcome the shortcomings e...

Claims

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Application Information

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IPC IPC(8): G06F16/22G06F16/28G06K9/00G06F13/40
CPCG06F16/22G06F16/284G06F13/4068G06F2213/0024G06F2218/10G06F2218/04
Inventor 王麟史晓清兰鹏孙睿
Owner RES INST OF PHYSICAL & CHEM ENG OF NUCLEAR IND
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