Apparatus for acquiring and storing high speed data in real time

Abstract

The invention discloses an apparatus for acquiring and storing high speed data in real time. The apparatus comprises a high speed digital data acquisition module (1) and a high speed data storage and control module (2), wherein the high speed digital data acquisition module (1) and the high speed data storage and control module (2) are connected through a PCI-E (Peripheral Component Interconnect-Express) bus, the high speed digital data acquisition module (1) is used for receiving external low speed and high speed digital signals, processing the received digital signals and transmitting the processed data to the PCI- E bus inside the apparatus, and the high speed data storage and control module (2) stores the data into a disk array to reach high speed, real time and safe data storage. Meanwhile, data playback is also supported, thus a user can access the data in the disk array through the high speed data storage and control module.

Description

technical field [0001] The invention relates to a storage device, in particular to a high-speed data real-time acquisition storage device, which belongs to the field of computer applications. Background technique [0002] The key technology of high-speed data acquisition and storage system is high-speed analog-to-digital conversion technology, data storage and transmission technology and anti-jamming technology. When a large amount of high-speed real-time data undergoes analog-to-digital conversion, it must be stored at high speed, and a multi-channel high-sampling rate data acquisition system will generate a huge data stream. This requires a high-speed and large-capacity storage medium to store the data, and then read it back to the computer for processing. [0003] The current mainstream high-speed data acquisition and storage systems are basically products of foreign companies, among which the products of National Instruments (National Instruments) occupy the leading pos...

AI Technical Summary

Problems solved by technology

Due to the limitation of the memory size on the acquisition card, this method can only continuously collect data for a few seconds or even a few milliseconds, and cannot achieve continuous real-time storage

[0006] 2. Using NI (National Instruments) PXIe acquisition card and industrial computer, this method can achieve higher speed acquisition and storage, but due to the use of general X86 architecture, in many cases it cannot meet the harsh environmental requirements , for example, when there are high requirements for temperature and vibration, this method cannot be used

However, this solution still requires the host to control the acquisition card and disk array card, which increases the cost and complexity of the product, and the increase in complexity leads to a decline in system stability. speed limit

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