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Variable-adjustable data acquisition method and system based on Labview

A data collection system and data collection technology, applied in visual data mining, database indexing, structured data browsing, etc., can solve the problems of inflexible data collection and collection requirements, and achieve the purpose of avoiding program crashes, high efficiency and accurate analysis. Effect

Pending Publication Date: 2020-07-28
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the defects of the prior art, the object of the present invention is to provide a variable-adjustable data acquisition method and system based on Labview, aiming to solve the problem that the existing data acquisition is not flexible enough in the face of ever-changing acquisition requirements

Method used

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  • Variable-adjustable data acquisition method and system based on Labview
  • Variable-adjustable data acquisition method and system based on Labview
  • Variable-adjustable data acquisition method and system based on Labview

Examples

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Embodiment 1

[0051] The method in this embodiment is applied to the indoor experimental data collection of the unmanned boat, including the following steps:

[0052] 1. Start the upper computer and perform the initialization process: clear the receiving buffer, queue buffer and waveform diagram, and configure the default acquisition parameters;

[0053]2. The upper computer and the lower computer are connected through the network port, and the four types of data to be collected are set through the event structure: variable 1-temperature, variable 2-speed, variable 3-voltage, variable 4-current; select the TCP protocol, Start the network port connection, wait for the lower computer to send a successful connection message, and then start data collection. This function is completed using a three-level queue structure. Each level of queue occupies a thread. The details of each thread are as follows:

[0054] (1) Pack each frame of data uploaded by the lower computer into an array, and then sen...

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Abstract

The invention discloses a variable-adjustable data acquisition method and system based on Labview, and belongs to the field of data acquisition. Aiming at multiple variables and control occasions where acquisition variables need to be adjusted at any time, a mode of combining an event structure with three layers of queues is adopted, the first-level queue is used for receiving data uploaded by a lower computer, and each frame of data is packaged into an array; the second-level queue is used for receiving the array of the first-level queue, accessing array elements in an array indexing manner,and classifying each element through a conditional structure; and the third-level queue is used for receiving the classified data transmitted by the second-level queue module, and displaying and storing the classified data according to types. The types and the number of the acquired variables can be changed at any time according to the requirements of actual application occasions; and the system is good in compatibility and low in cost, and can be widely applied to large-data-volume data acquisition systems and occasions with flexible adjustment requirements on the acquired variables.

Description

technical field [0001] The invention belongs to the field of data acquisition, and more specifically relates to a variable-adjustable data acquisition method and system based on Labview. Background technique [0002] In the fields of test and measurement, automation and industrial control, with the continuous improvement of the degree of automation, it is necessary to closely monitor key variables at any time. Not only the amount of data collected is increasing, but also because the key variables of different periods of time are changing at any time, There are also certain requirements for the flexibility of variable collection. [0003] There are two methods of traditional data collection: one is to collect some parameters fixedly, that is, to collect some specific variables every time it is turned on, and discard other variable data; the other is to directly collect all variables and upload them. The problem with this is that if only some parameters are collected fixedly,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/26G06F16/22G01D21/02
CPCG06F16/26G06F16/22G01D21/02
Inventor 刘洋柯先云
Owner HUAZHONG UNIV OF SCI & TECH
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