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Ethernet Data Stream Recording Method for High Speed ​​Data Acquisition System

A technology of high-speed data acquisition and recording method, applied in the direction of electrical digital data processing, multi-channel program device, program control design, etc., can solve the problems of low system transmission reliability, low CPU utilization, packaging and deployment difficulties, etc., to achieve The effects of high transmission reliability, efficient parallel processing, and reduced difficulty of packaging and deployment

Active Publication Date: 2022-08-02
INST OF AUTOMATION CHINESE ACAD OF SCI +1
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Problems solved by technology

[0005] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the existing Ethernet-based high-speed data acquisition system, the CPU utilization rate is low when collecting and recording data, the system compatibility is poor, the packaging and deployment are difficult, and the situation of high data bandwidth Under the problem of low system transmission reliability, the first aspect of the present invention proposes a method for recording Ethernet data streams used in high-speed data acquisition systems. High-speed NVMe SSD construction, the method includes:

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  • Ethernet Data Stream Recording Method for High Speed ​​Data Acquisition System
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  • Ethernet Data Stream Recording Method for High Speed ​​Data Acquisition System

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Embodiment Construction

[0034] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not All examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the related invention, but not to limit the invention. In addition, it should be noted that, for the convenience of description, only the parts related to the related inv...

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Abstract

The invention belongs to the fields of high-speed data acquisition and network data processing, and in particular relates to an Ethernet data stream recording method, system and device for a high-speed data acquisition system, and aims to solve the problem of low CPU utilization and poor system compatibility in the existing high-speed data acquisition system. , packaging and deployment difficulties, and low reliability of system transmission. The system method includes: after the Linux operating system is started, isolating a set number of CPU cores; uninstalling the operating system kernel mode network card driver, creating a huge page memory pool, and allocating the corresponding data receiving buffer pool and non-volatile network card to each 10G network card Lock the FIFO buffer and initialize the PCIE registers of each 10G network card to make it enter the acquisition state; continuously receive and record the data packets collected by each 10G network card in the user-mode polling driving mode. The invention improves CPU utilization, system compatibility and transmission reliability, and reduces the difficulty of packaging and deployment.

Description

technical field [0001] The invention belongs to the fields of high-speed data acquisition and network data processing, and in particular relates to an Ethernet data stream recording method, system and device for a high-speed data acquisition system. Background technique [0002] With the development of science and technology, a variety of applications have put forward higher storage bandwidth requirements for data acquisition systems, such as radar signal processing, radio astronomy detection, and high frame rate video recording. The high-speed data acquisition system is mainly composed of high-speed analog-to-digital converter (ADC), real-time digital signal processor and storage device, etc. The data transmission bandwidth can generally reach more than 500MB / s. The real-time digital signal processor of the high-speed data acquisition system generally takes FPGA or DSP chip as the control core, and directly stores the digital signal after analog-to-digital conversion in the...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/50
CPCG06F9/5027G06F9/5016G06F9/544G06F3/067G06F3/061G06F3/0631
Inventor 吕志丰蒿杰舒琳赵美婷宋亚芳范秋香
Owner INST OF AUTOMATION CHINESE ACAD OF SCI
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