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An airborne flexray communication interface device and method

A technology of communication interface and host interface, applied in the field of communication

Active Publication Date: 2020-10-27
XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides an airborne FlexRay communication interface device and method, which solves the isolation and intercommunication between data users and bus terminal nodes existing in the application of the FlexRay bus in the airborne system, and the problems of data caching. Realize real-time communication between airborne applications and FlexRay terminal systems while ensuring security

Method used

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  • An airborne flexray communication interface device and method
  • An airborne flexray communication interface device and method
  • An airborne flexray communication interface device and method

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Embodiment Construction

[0083] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0084] In the integrated comprehensive electronic system of the general aircraft, the data communication between the main board of the general processing module and the FlexRay terminal node can be realized by adopting the invention.

[0085] 1. Structure composition

[0086] see figure 1 , each functional module of the present invention is respectively arranged on the host processor end, the dual-port access memory and the FlexRay communication controller end, specifically comprising:

[0087] (1) Host cycle scheduling module 101: This module is located at the host processor side, and performs operations such as FlexRay communication, fault status inspection, and communication parameter setting every cycle according to the preset cycle time. When performing the above operations, the host interface module 102 is called to Finish.

[0088] (2) Host interface module...

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Abstract

The invention provides an on-board FlexRay communication interface device and method. The network isolation and interworking of a FlexRay terminal in an on-board environment are realized through a host processor end, a dual-port access memory end, and a FlexRay communication controller end which are physically independent of one another, the problem of data buffer is solved through the establishment of a communication frame buffer and a communication frame data storage area at a host end and a MCU communication frame storage area at the FlexRay communication controller end, and a solution is provided for the application of a FlexRay bus in an integrated avionics system.

Description

technical field [0001] The invention belongs to the technical field of communication, and relates to an airborne FlexRay communication interface device and method, which are used in a low-cost airborne integrated modular avionics platform, and data communication between a host module and a FlexRay end node module can ensure safety At the same time, it provides isolation intercommunication and fault reporting. Background technique [0002] The FlexRay bus is a transmission bus designed and developed for automotive applications. Its time- and event-triggered compatible features, as well as low-cost expenses, make it a potential application in small aircraft. However, due to the high security requirements of the airborne aviation network and the small internal message storage area of ​​the FlexRay bus controller, the FlexRay bus controller cannot meet the application requirements of the airborne environment. However, the isolation technology and cache technology used in the e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L12/26H04L12/863H04L12/40
CPCH04L41/0659H04L41/069H04L43/06H04L47/6245H04L2012/40241
Inventor 张双刘文学刘绚王辰娇
Owner XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA