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B type LXI multifunctional data acquisition instrument

A data acquisition instrument and multi-functional technology, applied in the direction of instruments, signal transmission systems, electrical signal transmission systems, etc., can solve the problems of low scanning frequency, small sampling accuracy and speed requirements in the on-board cache, and single function, so as to improve reliability performance, enhance the clock driving ability, and eliminate the effect of signal reflection

Active Publication Date: 2014-11-26
陕西海泰电子有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To solve the technical problems that the existing data acquisition instrument has single function, low scanning frequency, and small on-board buffer cannot meet the higher and higher sampling accuracy and speed requirements, the present invention provides a Class B LXI multifunctional data acquisition instrument

Method used

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  • B type LXI multifunctional data acquisition instrument
  • B type LXI multifunctional data acquisition instrument
  • B type LXI multifunctional data acquisition instrument

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Embodiment Construction

[0047] Such as figure 1 As shown, the Class B LXI multifunctional data acquisition instrument includes a Class B LXI interface module, a multifunctional data acquisition instrument function module for realizing analog acquisition, analog output, and digital input and output, and an LED indicator module; the Class B LXI interface module includes embedded processor circuit, IEEE 1588 trigger management circuit, FLASH storage circuit, DDR dynamic storage circuit and LAN interface communication circuit;

[0048] The embedded processor circuit is used to provide a network interface for communication with the control computer, and realize the LXI bus protocol related to program storage and processing;

[0049] The IEEE 1588 trigger management circuit is used to process the 1588 protocol, manage 1588 related triggers and extract time stamps;

[0050] FLASH storage circuit is used to store system data and application programs;

[0051] DDR dynamic storage circuit is used to dynamica...

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Abstract

The invention relates to a B type LXI multifunctional data acquisition instrument, which comprises a B type LXI interface module, a multifunctional data acquisition instrument functional module used for realizing simulation acquisition, analog output, digital quantity input and output, and a LED indication module; the multifunctional data acquisition instrument functional module comprises a FPGA unit, a PCI interface, a memory and an input and output unit. The multifunctional data acquisition instrument solves the technical problems of single function of the data acquisition instrument, low scan frequency, small buffer memory which can not satisfy the higher and higher requirements of the sampling precision and speed in the current data acquisition instruments. The B type LXI multifunctional data acquisition instrument possesses a plurality of functions of analog quantity acquisition, analog output, digital quantity input and output, timer counter and programmable function interface.

Description

technical field [0001] The utility model relates to a class B LXI bus multifunctional data acquisition instrument circuit. Background technique [0002] Agilent and VXI Technology Corporation proposed a new instrument bus-LXI (LAN eXtensions for Instrumentation) in 2004. LXI instruments do not need a special backplane bus chassis and zero-slot controller, and directly use the standard LAN interface of a general-purpose PC, which greatly reduces development and application costs. And LAN is the industry's most stable and open industry standard with the longest life cycle and is still developing. It is easy for manufacturers to transplant existing instrument products to the LAN platform. The measurement and control system provides convenience. At the same time, the LXI bus standard defines the precise time synchronization function based on IEEE1588, and introduces the concept of time-based triggering for the first time in the field of test and measurement, making it easy to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08C19/00
Inventor 郭恩全刘学钢闫永胜李小杰林成文苗胜
Owner 陕西海泰电子有限责任公司
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