Data acquisition card based on VISA technique

A data acquisition card and data acquisition module technology, applied in the direction of electrical digital data processing, instruments, etc., can solve the problems of unfavorable engineers for secondary development, lack of portability, and poor versatility, so as to reduce the difficulty of driver development and develop The effect of low difficulty and convenient secondary development

Inactive Publication Date: 2016-11-16
SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of acquisition card is limited by its bus, susceptible to electromagnetic interference from other devices in the host, and does not have good portability, and its versatility is not strong, which is not conducive to engineers' secondary development

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Data acquisition card based on VISA technique
  • Data acquisition card based on VISA technique
  • Data acquisition card based on VISA technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be further described in conjunction with embodiment, accompanying drawing now. It should be understood that the following examples are only used to illustrate the present invention but not to limit the scope of the present invention.

[0023] figure 1 It is a schematic diagram of system composition, and a universal data acquisition card based on VISA technology in the present invention includes a data acquisition module, a USB communication module, and a host computer driver module.

[0024] The data acquisition module includes two parts, FPGA and ADC, mainly to realize the conversion of analog quantity into digital quantity, and at the same time find the trigger point according to the command of the host computer, take out useful data and write it into the buffer area of ​​the USB chip.

[0025] The USB communication module uses the classic chip 68013-56PIN of CYPRESS, mainly to realize the transmission of USB communication and the transmiss...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A kind of data acquisition card based on VISA technology, it is characterized in that, described data acquisition card comprises data acquisition module, USB communication module and upper computer driver module, and data acquisition module configures USB communication module, and peripheral analog signal is transformed into The digital signal is sent to the USB communication module, and the USB communication module and the data acquisition module exchange data, and the USB communication module sends the data received from the data acquisition module to the upper computer driver module. The invention adopts the USB bus and uses the VISA interface to develop the data acquisition card, which can solve the problem of protocol openness, reduce the difficulty of driver development, and shorten the development cycle. The upper computer adopts VISA technology and perfectly supports development platforms such as Labview and CVI. It also provides a wealth of underlying VI functions, which is convenient for engineers to carry out secondary development.

Description

technical field [0001] The present invention relates to a high-performance data acquisition card and a data acquisition method, in particular to a VISA technology-based data acquisition card and a data acquisition method, which has two channels of signal acquisition and one channel of signal generation for realizing data acquisition and testing . Background technique [0002] The task of the data acquisition system is to collect the analog signal output by the sensor, then convert the collected analog signal into a digital signal that can be recognized by the computer, and then send the digital signal to the computer for processing. The accuracy and speed of the data acquisition system determine the system performance. An important factor for good or bad. At present, most of the data acquisition products in the domestic and foreign markets are acquisition devices with single-chip microcomputer, DSP or FPGA as the control center of the acquisition system, and PCI and PXI b...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/40
CPCG06F13/4068
Inventor 敖飞平王海勇赵维刚
Owner SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap