Condition type triggering high-speed synchronous collecting and recording system with expandable channels

Abstract

The invention discloses a condition type triggering high-speed synchronous collecting and recording system with expandable channels. The system comprises a clock module, a collection module, a storage module and a mainboard controller. The clock module, the collection module and the storage module are mutually connected with the mainboard controller through a PCIE interface. The clock module can output accurate synchronous clock signals and synchronous triggering signals to drive the collection module to carry out high-speed synchronous collection on input analog signals, the collected data are written into the storage module for permanent storage at a high speed under the effect of the mainboard controller, wherein frequencies of clock signals and sources of triggering signals can be set, and judgment signals output by the collection module are accessed into the clock module for condition type triggering. Compared with the prior art, the method has the advantages that the channels are expandable, synchronous collection and condition type triggering are achieved, collection can be carried out through multiple modes, secondary development is facilitated, the man-computer interaction design is simple, and other advantages.

Description

technical field [0001] The invention specifically relates to the technical field of data acquisition and recording systems, and in particular to a data acquisition and recording system that requires module expansion, efficient acquisition of useful data, and acquisition synchronization in a large-scale array and large-capacity signal parallel acquisition environment. Background technique [0002] At present, most of the high-speed acquisition systems developed around the world use FPGA chips to control AD ​​chips to achieve data acquisition, and select chips and design structures for specific needs. The acquisition system developed mainly focuses on the acquisition of specific signals in certain related fields and the design of integration on a single board. Acquisition systems with specific functions or integrated on a single board, such as distributed POS sub-IMU data acquisition systems, multi-channel vibration data acquisition systems, etc., have special structures accor...

AI Technical Summary

Problems solved by technology

Such a design has poor versatility, the acquisition channel is difficult to expand, and the design of acquisition control and human-computer interaction is relatively complicated.

Especially in the case of large-scale expansion, such as simultaneous acquisition of hundreds of channels, the expansion development will be more difficult, and often requires redesign

On the other hand, if the collected signal data is stored without selective inspection, many useless signals will be obtained, which will greatly increase the difficulty and workload of subsequent analysis and processing of the stored data

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