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AFDX (Avionics Full Duplex Switched Ethernet) data sampling rerecording equipment and method

A technology for data sampling and recording equipment, which is applied in data acquisition and recording, instruments, control/regulation systems, etc., to achieve the effects of reducing resource consumption, ensuring real-time performance, and ensuring integrity

Active Publication Date: 2016-05-04
西安翔腾微电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Purpose of the present invention: the present invention provides a kind of AFDX data sampling and recording equipment, in order to solve the technical problem existing in traditional collection and recording equipment

Method used

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  • AFDX (Avionics Full Duplex Switched Ethernet) data sampling rerecording equipment and method

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Embodiment Construction

[0027] Such as figure 1 As shown, the present invention provides a kind of AFDX data acquisition equipment, comprises configuration module, MAC core module, data sampling module, timer module and data output core module; Wherein:

[0028] The configuration module is connected to the external input interface; it is used to configure the period, time offset, message identification, sampling position, sampling width and output position;

[0029] The MAC core module is connected to the AFDX network interface, receives data from the AFDX network, and outputs the data to the data sampling core module; the MAC core module includes integrity check A module, integrity check B module, redundancy management module and filtering module ; Among them, the redundancy management module is used to manage the output of the integrity check A module and the integrity check B module; the filter module is connected to the data sampling core module.

[0030] The data core sampling module receives d...

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Abstract

The invention discloses AFDX (Avionics Full Duplex Switched Ethernet) data sampling rerecording equipment. Through a timing data sampling mechanism, a data acquisition process and a data output process are transferred to acquisition equipment without occupying the processing performance of application software, and data acquisition instantaneity is guaranteed while the resource consumption of a host processor is reduced. In addition, an acquired data store process and a sampling data output process are isolated through a double-buffering mechanism of a first storage module and a second storage module, data integrity is guaranteed, and meanwhile, different sampling points are supported to acquire data on different positions of the same frame. The AFDX data sampling rerecording method can store one flow which contains effective data (sampling data), and is convenient for application analysis. Meanwhile, through the double-buffering mechanism of the first storage module and the second storage module, different sampling points can be supported to acquire the data on different positions of the same data frame, and therefore, the application software can be flexibly designed.

Description

technical field [0001] The invention belongs to the technical field of computer applications, and relates to an AFDX data sampling and recording device. Background technique [0002] In the traditional acquisition equipment, the acquisition and recording process of the target data is to update the data segment to be collected by receiving the data as the trigger point, and record all the bus data at the same time to ensure that the selected parameters are kept up-to-date. The data at different positions on the frame may come from different data frames, and the sampling point of the recorded data is based on the query, which ensures the integrity of the data, but also consumes too much resources. Contents of the invention [0003] Purpose of the present invention: the present invention provides an AFDX data sampling and recording device to solve the technical problems existing in traditional collection and recording devices. [0004] Technical solution of the present inven...

Claims

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Application Information

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IPC IPC(8): G06F17/40G05B17/02
CPCG05B17/02G06F17/40
Inventor 姜丽云杨军祥田泽张荣华马宁
Owner 西安翔腾微电子科技有限公司
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