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

A technology of data acquisition and data acquisition system, applied in the field of data acquisition system of spacecraft dynamics environment, can solve the problems of inability to meet the acquisition and processing of satellite model channels, low overall indicators, etc., and achieve the effect of stable and reliable real-time transmission

Inactive Publication Date: 2010-06-16
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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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

Method used

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

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Embodiment Construction

[0028] The entire data acquisition system can be divided into hardware platform and software system. The hardware platform adopts VXI bus structure, including PC main control computer, A / D analog-to-digital conversion module, signal input isolation box, VXI bus chassis, printer, etc., all The functional modules and the zero-slot controller are placed in the VXI bus chassis; the software system uses the WINDOWS2000 platform and its VisualC / C++ integrated development environment as the software framework of the data acquisition system, and the application program realizes the control of the test tasks of the automatic test system and completes data acquisition and control tasks, real-time data processing and other tasks.

[0029] Hardware platform and principle:

[0030] The communication connection between the main control computer and the VXI bus chassis is in accordance with the external controller of the VXI bus test system, that is, through the PCLink plug-in card inserted ...

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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. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/06
Inventor 冯咬齐崔俊峰于丹王鹤沈凤霞韩晓健
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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