Enhanced GJB289A bus communication management and scheduling method

Abstract

The invention belongs to airborne network communication technologies, and relates to an improved method for a traditional GJB289A bus communication management and scheduling strategy. The invention relates to a method for increasing transmission processing and scheduling of emergent events and messages on the basis of the traditional GJB289A bus communication management. The enhanced GJB289A bus communication management and scheduling method has the following advantages: bus load real-time dynamic regulation, which means that the realization of bus load real-time dynamic regulation is providedwith basis through real-time management and control of the emergent messages; reduction of transmission delay and jitter, which means that the transmission delay and the accumulation jitter can be effectively reduced through real-time and dynamic adjustment of bus load; guarantee of consistency of a split data transfer sequence, which means that the consistency of the data sending and receiving sequence can be guaranteed for split transmission of big data; and flexibility and high effectiveness, which means that an effective processing mechanism can be provided for application layer softwareto process the emergent events.

Description

Technical field: [0001] The invention belongs to the airborne network communication technology, and is an improvement and realization method of the traditional GJB289A bus communication management and scheduling mechanism. Background technique: [0002] Since the 1970s, with the evolution of the avionics system from a distributed analog structure to a distributed digital structure, the avionics data bus follower has transitioned from the ARINC429 / ARINC629 bus to the MIL-STD-1553B / 1773. The use of the new data bus has greatly improved the communication performance of the aircraft. More and more fields such as aviation, spaceflight, and ships use the GJB289A data bus to structure the communication network. The GJB289A data bus technology is becoming more and more mature and widely used. [0003] The full name of the GJB289A data bus is a digital time-division command / response multi-channel data bus, which is characterized by centralized control and distributed processing. As t...

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Problems solved by technology

[0008] b. After the data packet split by the sending node is transmitted to the receiving node, the consistency of the data packet bus transmission sequence cannot be guaranteed;

[0009] c. The delay and jitter of accumulated transmission are highlighted

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