Distributed aviation communication middleware simultaneously supporting CAN bus and Ethernet

Abstract

The invention discloses distributed aviation communication middleware simultaneously supporting a CAN bus and the Ethernet, and the aviation communication middleware works under a linux system and depends on an interface provided by an operating system to control a physical bus. The aviation communication middleware comprises a bus adaptation module, a route management module and an interface API.The bus adaptation module is used for shielding bus operation process differences, abstracting various operations of the Ethernet and the CAN bus into the same set of operation process, and providinga data structure and an operation function for accessing the bus for the routing management module; the route management module is responsible for analyzing the received message in the message receiving process, determining whether the message needs to be forwarded or not according to the message information, and searching for a correct route in the message sending process to send out the message; and the interface API is responsible for providing a unified interface for an external program. According to the invention, different bus differences in an avionics system can be shielded, and datatransceiving between different bus devices is realized.

Description

technical field [0001] The invention relates to the technical field of distributed communication middleware, in particular to distributed aviation communication middleware supporting both CAN bus and Ethernet and a message sending and receiving method thereof. Background technique [0002] With the development of electronic technology, in the field of civil avionics (Avionics), the on-board systems are becoming more and more complex. Civil avionics not only involves general-purpose equipment such as communication, navigation, identification, flight management, air data, radar, and electronic display control that meet basic functions, but also optimizes experiences such as audio control, passenger service, cabin control, wireless Internet access, and multimedia services. system. [0003] Due to the large number of devices, the physical bus between devices is complex. When designing communication scenarios between devices, business software requires a lot of manpower to adap...

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Problems solved by technology

[0005] Due to the safety considerations of the avionics system, all subsystems and data business processes are mutually backed up to ensure that the operation capability of the avionics system will not be affected after a system failure, so the traditional centralized middleware system cannot be applied in the field of avionics

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