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Multi-sampling rate multi-channel synchronous data acquisition system and acquisition method

A data acquisition system, multi-channel synchronization technology, applied in the direction of data acquisition and recording, can solve the problems of single function, poor versatility, fixed sampling frequency, etc., to achieve the effect of solving single function

Inactive Publication Date: 2014-12-03
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

Existing data acquisition systems often have shortcomings such as fixed sampling frequency, single function, and poor versatility

Method used

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  • Multi-sampling rate multi-channel synchronous data acquisition system and acquisition method
  • Multi-sampling rate multi-channel synchronous data acquisition system and acquisition method

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Embodiment Construction

[0020] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0021] see Figure 1 to Figure 2 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the sa...

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Abstract

The invention provides a multi-sampling rate multi-channel synchronous data acquisition system and sampling method. The data acquisition system at least comprises a data acquisition card, a sampling parameter control unit and a data analyzing unit, wherein the data acquisition card can be used for performing multi-channel data acquisition; the sampling parameter control unit is connected with the data acquisition card and is used for controlling the sampling parameter of the data acquisition card; the data analyzing unit is connected with the data acquisition card, and is used for performing predetermined analysis on multi-channel data synchronously acquired by the data acquisition card. By adopting the data acquisition system and the data acquisition method provided by the invention, data acquisition can be performed at a plurality of sampling rates. Moreover, sampling is stopped automatically when the quantity of sampling points is sufficient, so that sampling data volume can be reduced effectively. The multi-sampling rate multi-channel synchronous data acquisition system and the multi-sampling rate multi-channel synchronous data acquisition method can be widely applied to engineering practice such as non-contact distance measurement and phase detection.

Description

technical field [0001] The invention relates to the field of data acquisition, in particular to a multi-sampling rate multi-channel synchronous data acquisition system and an acquisition method. Background technique [0002] Data acquisition, also known as data acquisition, refers to the process of automatically collecting information from analog and digital units under test such as sensors and other equipment under test. As an important branch of information science, data acquisition technology is a comprehensive application technology based on sensors, signal measurement and processing, and computers. As the data acquisition system is widely used in various testing and control systems, people pay more and more attention to the various technical indicators of the data acquisition system, especially the sampling frequency and precision. Existing data acquisition systems often have shortcomings such as fixed sampling frequency, single function, and poor versatility. Therefo...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/40
Inventor 王前李韬
Owner SOUTH CHINA UNIV OF TECH
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