High-capacity and high-speed parallel dynamics test data acquisition technology

Abstract

The invention relates to data acquisition system and method, in particular to data acquisition system and method in spacecraft dynamics environment. The system comprises a main control computer, a VXI bus case and an input isolation box, wherein the main control computer is used for finishing data processing, analysis and storage and displaying tasks in real time; the VXI bus case is internally provided with a zero-slot controller with a higher data transmission rate and an A / D conversion functional module; the input isolation box is used for electrically isolating input analog signals; and the main control computer communicates with the VXI bus case according to a mode of an external controller of a VXI bus test system. The invention realizes the high-speed, parallel and synchronous acquisition, the real-time transmission and the storage of 128 channel data, has the functions of data acquisition and processing on sinusoid scanning and random vibration dynamics environmental tests and meets the technical requirements on high-capacity data parallel acquisition, real-time transmission, stability and reliability of tests in the spacecraft dynamics environment.

Description

technical field [0001] The invention relates to a data acquisition system and method, in particular to a data acquisition system and method for a spacecraft dynamic environment. Background technique [0002] During the development of satellites and spacecraft, a large number of dynamic environment simulation tests are required, and the data collection and analysis of dynamic environment tests play an important role in the evaluation of test effectiveness and the quality assurance of satellite products. Over the past 30 years, the dynamic environment test technology has been developed along with the development of computer technology. [0003] The instrument bus platforms widely used in the market are VXI bus and PXI bus. The VXI bus platform is an open test system structure, which embodies the system requirements of standardization, modularization, serialization, and generalization. It can realize the sharing of system resources, software resources, and hardware resources. ...

AI Technical Summary

Problems solved by technology

Since the overall index of the data acquisition system developed in China is relatively low at present, it cannot meet the requirements of channel acquisition and processing of satellite models. Therefore, the present invention establishes a set of satellite dynamic environment test data flow and high real-time requirements. Data Acquisition System Required for Satellite Dynamics Environmental Test

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