FPGA-based data acquisition system

Abstract

The invention relates to an FPGA (Field-Programmable Gate Array)-based data acquisition system. The FPGA-based data acquisition system includes successively connected data acquisition module, data processing module and data transmission module, wherein the data acquisition module includes at least one data acquisition channel, and is used for performing synchronous acquisition and sampling on multi-channel of signals, and sending the sampling signals to the data processing module; the data processing module includes an FPGA processor which is connected with the data acquisition module and the data transmission module; the FPGA processor is used for processing the sampling signals, and controls the data acquisition module and the data transmission module through a soft core controller which is integrated in the FPGA processor; and the data transmission module is used for transmitting the signals which are processed by the data processing module to a host computer system. The FPGA-based data acquisition system can realize the most part of digital system design through the FPGA processor, can reduce the quantity of peripheral module circuits, can reduce the peripheral circuit PCB wiring and layout complexity, and can improve accuracy of signal acquisition and the data processing speed.

Description

technical field [0001] The invention relates to the field of data acquisition, in particular to an FPGA-based data acquisition system. Background technique [0002] In modern scientific research, production and people's daily life, data acquisition systems are widely used. It is necessary to detect physical quantities such as temperature, humidity, pressure, and flow, and convert these physical quantities into analog electrical signals through corresponding sensors. After the analog electrical signal is amplified, filtered, and converted from analog to digital, it is sent to the computer for processing, and finally the result is displayed. This is data acquisition. With the development of detection technology, higher requirements are put forward for parameters such as sampling accuracy and sampling rate of the data acquisition system, especially for some fields with high demand for data acquisition and analysis, such as in the field of electric power, various characterizatio...

AI Technical Summary

Problems solved by technology

However, the traditional microprocessor-based data acquisition system needs to design complex peripheral hardware circuits, the cost is high, and the accuracy and processing speed of data acquisition cannot meet the requirements.

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