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A method to realize the state machine of arinc485 protocol

A technology of protocol state and state machine, which is applied in the field of aviation and airborne to achieve high-efficiency data communication and improve response speed.

Active Publication Date: 2022-02-11
CHINA ELECTRONICS TECHNOLOGY AVIONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, there are very few implementation methods for the Arinc485 protocol state machine in the current prior art, and we urgently need a method for realizing the Arinc485 protocol state machine

Method used

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  • A method to realize the state machine of arinc485 protocol
  • A method to realize the state machine of arinc485 protocol
  • A method to realize the state machine of arinc485 protocol

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Embodiment

[0046] Such as Figure 1 to Figure 5 As shown, a method for realizing the Arinc485 protocol state machine includes the realization of the message framing sub-state machine, the realization of the message processing sub-state machine and the realization of the message interaction process, wherein:

[0047] The realization of the message framing sub-state machine, after converting the binary bit stream transmitted by the EIA-485 bus into byte sequence data, the received byte sequence is restored to the original information at the receiving end to realize the assembly of the complete message frame , for the subsequent message processing flow to use;

[0048] The implementation of the message processing sub-state machine is realized by completing a complete transmission of the message. If the transmission is successful, it represents a complete transmission of the message; if the transmission fails, an error warning is reported; among them, the realization of the message processin...

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Abstract

The invention discloses a method for realizing the Arinc485 protocol state machine, including the realization of the message framing sub-state machine, the realization of the message processing sub-state machine and the realization of the message interaction process, and the realization of the message framing sub-state machine through the bus transmission After the binary bit stream is converted into byte sequence data, the received byte sequence is restored to the original information at the receiving end to realize complete message frame assembly for subsequent message processing; the realization of the message processing sub-state machine is achieved by completing the message A complete transmission is realized, including the message processing of the host on-board device and the message processing of the slave on-board device; the realization of the message interaction process is to establish four threads to complete the message processing sub-state machine of the host on-board device, the host on-board device The functions of device message framing sub-state machine, slave on-board device message framing sub-state machine, and slave on-board device message processing sub-state machine can realize high-efficiency data communication between master on-board device and slave on-board device.

Description

technical field [0001] The invention relates to the field of aviation onboard technology, in particular to a method for realizing the Arinc485 protocol state machine. Background technique [0002] Arinc is an American Ericsson company, whose full name is Aeronautical Radio Inc. It is mainly responsible for the coordination, management and certification of airline radio communications independent of the government. Arinc leads the development of technical standards for aviation airborne electronic equipment, aircraft maintenance equipment and practices, and flight simulator equipment for military and commercial aviation. It is a technology provider for China's civil aviation data communication network. [0003] The Arinc485 protocol is an aviation standard protocol released by Arinc, and it is a standard that defines characteristics such as communication specifications and electrical compatibility related to the cabin entertainment system (In-Flight Entertainment System, IFE)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/40H04L5/00H04L1/16
CPCH04L12/40006H04L5/0055H04L1/1607H04L2012/4028
Inventor 李加超冉进刚
Owner CHINA ELECTRONICS TECHNOLOGY AVIONICS CO LTD
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