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High-speed real-time data capture method without interference to communication

A real-time data, non-interference technology, applied in the direction of data conversion, data exchange network, electrical digital data processing, etc., can solve the problems of low real-time performance and low reliability

Active Publication Date: 2020-12-18
XIAN FLIGHT SELF CONTROL INST OF AVIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of this invention: to provide a high-speed real-time data capture method without interference to communication, to solve the problems of low real-time performance and low reliability of existing capture methods , supports bit error rate test and fault injection function, which is of great significance to high-speed bus test

Method used

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  • High-speed real-time data capture method without interference to communication
  • High-speed real-time data capture method without interference to communication
  • High-speed real-time data capture method without interference to communication

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Embodiment 1

[0028] In this embodiment, figure 1 Data capture functional block diagram, combined with figure 1 As shown, a high-speed real-time data capture method without interference to communication is provided, the method comprising:

[0029] Grab the actual data on the bus network, and generate the first data and the second data through the level split chip, the first data is sent back to the bus network, and the second data enters the data packet analysis module;

[0030] Described packet parsing module comprises FPGA channel and processor module that data is connected successively; Packet parsing module parses the second data, writes the second data that obtains into the shared Buffer buffer of FPGA channel; Processor module according to different A protocol stack for parsing different data frame formats of the second data, and storing the analyzed data blocks;

[0031] The upper computer reads the analyzed data block in the processor module; the upper computer inputs theoretical ...

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Abstract

The invention belongs to the field of computer network communication, and particularly relates to a high-speed real-time data capture method without interference to communication. A CML or LVDS levelone-to-two chip is used for achieving loopback and redundancy of high-speed serial data, redundant data are used for real-time data analysis, fault injection and bit error rate testing functions are supported, the data rate supports 500 Mbps to 6.25 Gbps, and therefore it is guaranteed that the data are transmitted normally without interference, and meanwhile the data are captured.

Description

technical field [0001] The invention belongs to the field of computer network communication, and in particular relates to a high-speed real-time data capture method without interference to communication. Background technique [0002] At present, the aircraft control system performs data communication through various buses. The real-time and reliable operation of the bus is crucial to the safety of the aircraft. With the development of bus technology, the data transmission rate and high reliability design of the bus continue to improve, and the bus test is also proposed. higher requirement. In the process of bus testing, it is necessary to capture and analyze various types of data frames running in the network to determine the sending time, arrival time, and accuracy of transmitted data of the data frames, so as to carry out packet capture analysis, communication testing, Performance tests such as stress testing, fault injection, precise fault location, and bit error rate te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/26G06F11/22G06F5/06
CPCH04L41/14H04L41/145H04L43/0847G06F11/2221G06F5/06Y02D10/00
Inventor 董占鹏张兴隆张超徐东远范阳唐绍飞叶有平
Owner XIAN FLIGHT SELF CONTROL INST OF AVIC
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