Distributed miniature data acquisition system

Abstract

The invention relates to a data acquisition system, in particular, a distributed miniature data acquisition system. The distributed miniature data acquisition system comprises an upper computer, a distributed acquisition array management module and a plurality of data acquisition stacks; a plurality of acquisition links are connected with the distributed acquisition array management module through link interfaces arranged on the distributed acquisition array management module; a plurality of data acquisition stacks are connected with one another through an cascading bus so as to form each acquisition link; the cascading mode of the data acquisition stacks in the acquisition link is configured to a daisy chain connection mode; and each data acquisition stack includes a control module and a plurality of sensor acquisition modules which are connected with one another sequentially in a stack manner and then are connected with the control module, wherein the control module is connected with an upper-level data acquisition stack and a lower-level data acquisition stack or the distributed acquisition array management module through cascading ports and is used for realizing control instruction transmitting, acquisition data receiving and data storage for the data acquisition channels of the sensor acquisition modules and supplying power for the sensor acquisition modules. The distributed miniature data acquisition system of the invention has the advantages of high expansibility and large number of channels, and can be widely used.

Description

technical field

[0001] The invention relates to a data acquisition system in the fields of aerospace test analysis, automobile safety test, explosion test and aircraft test, and in particular to a distributed micro data acquisition system. Background technique

[0002] In the aerospace test analysis, automobile safety test, explosion test, vibration shock test, and aircraft test, the data acquisition system is mainly used to obtain the working parameters and environmental data of each component of the equipment system, which provides a basis for evaluating the performance of the equipment and fault location. Through the collection and analysis of vibration, shock, pressure, strain and temperature data in equipment development, production and daily maintenance, it can provide intuitive and accurate data for equipment testing and evaluation. The reliability of the data acquisition system is the key factor for the success or failure of the weapon equipment test. At present, th...

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