Multichannel data acquisition instrument based on time synchronization

A data acquisition instrument, time synchronization technology, applied in instruments, general control systems, computer control, etc., can solve the problems of large size, unsuitable for multi-point data acquisition, and low environmental adaptability

Active Publication Date: 2014-01-01
CHENGDU JOVIAN TECH EXPL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The system can realize synchronous data acquisition, but the system uses a lot of hardware, high cost, low environmental adaptability, and large volume, which is not suitable for multi-point data acquisition in different places

Method used

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  • Multichannel data acquisition instrument based on time synchronization
  • Multichannel data acquisition instrument based on time synchronization
  • Multichannel data acquisition instrument based on time synchronization

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Embodiment Construction

[0051] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0052] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0053] 1. Working principle:

[0054] 1) When the sensor and the excitation source circuit are not included, the working principle of the device:

[0055] The lower computer control signal sent by the upper computer is unpacked by the processor. The processor sends the unpacked lower computer control signal to the signal control module of the FPGA control circuit and the data processing module of the FPGA control circuit, and then controls t...

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Abstract

The invention relates to the field of data acquisition and processing, in particular to a multichannel data acquisition instrument based on time synchronization. In order to solve the problems in the prior art, the multichannel data acquisition instrument based on time synchronization is provided. The multichannel data acquisition instrument is used for data acquisition after being subjected to time correction through a VCO adjusting module, an FPGA and a processor are in parallel connection to conduct data transmission, data collected by a sensor are stored in a memory, data of a data storage chip are read to conduct subsequent data processing, or data interaction is conducted through an internet access and an upper computer, and upper computer data processing is conducted. According to the multichannel data acquisition instrument based on time synchronization, the processor, an FPGA control circuit, an analog-digital conversion and conditioning circuit and a sensor circuit are in mutual connection, and the design of the multichannel data acquisition instrument is achieved. The data acquisition instrument based on time synchronization is applied to the field of high-speed data acquisition.

Description

Technical field [0001] The invention involves the field of data collection and processing, especially a multi -channel data collection instrument based on time synchronization. Background technique [0002] In existing technologies, most of the data collection equipment of the time synchronization system is mostly compared with system schemes, such as GPS -based distributed synchronous data acquisition system developed by NI companies for bridge detection.This system is mainly composed of two parts of GPS receiver and Ni PXI collection device, including PXI chassis, PXI 8187 main controller, PXI 6652 synchronous clock module, PXI 6602 timer, PXI 4472B dynamic signal collection card.The system can achieve synchronous data collection, but the system uses more hardware, high cost, low environmental adaptability, and most of the volume is not suitable for multi -point data collection in different places. Invention content [0003] The technical problem to be solved by the present in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
Inventor 齐永龙文菠聂渝磊史立东
Owner CHENGDU JOVIAN TECH EXPL
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