Integrated modular avionics system two-stage scheduling model and prototype platform

An avionics system, a comprehensive modular technology, applied in the field of avionics, which can solve the problems of lack of actual schedulability analysis and algorithm validity verification, staying at the theoretical ideological level, unclear partition and process scheduling schemes and methods, etc. Good scalability, flexible design, and complete functions

Active Publication Date: 2018-04-20
BEIHANG UNIV +1
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Problems solved by technology

So far, there are still deficiencies in the two-level scheduling model and algorithm of the IMA system: although ARINC653 stipulates the scheduling attributes of partitions and processes, it does not specify the scheduling schemes and methods of partitions and processes; some models proposed by researchers and alg

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  • Integrated modular avionics system two-stage scheduling model and prototype platform
  • Integrated modular avionics system two-stage scheduling model and prototype platform
  • Integrated modular avionics system two-stage scheduling model and prototype platform

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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] The invention provides a two-level scheduling model and a prototype platform for a comprehensive modular avionics system, including the design of a two-level scheduling model of a partition and a process, the design of a two-level scheduling algorithm of a partition and a process, and the design of a multi-processor scheduling algorithm. The two-level scheduling model of the IMA system is as follows: figure 1 As shown, all two-level scheduling models are first divided into two categories according to whether the process time is continuous or not: the first type of model uses all processes as the execution unit, and all processes are only executed within the time slice of the partition to which they belong. During the execution process, all The process time is continuous, and its execution process is not affected by the partition, that is, all processes...

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Abstract

The invention discloses an integrated modular avionics system two-stage scheduling model and a prototype platform, and belongs to the technical field of avionics. The two-stage scheduling model is divided into three categories of combination ways according to whether process time is continuous and according to a partition scheduling strategy and a process scheduling strategy, the optimization of unknown parameters is independently finished by aiming at each category of combination ways, and finally, a reasonable scheduling scheme and a reasonable scheduling Gantt chart are generated. On the basis of a classical partition and process scheduling model, an IMA (Integrated Modular Avionics) system two-stage scheduling model is expanded, the prototype platform has the advantages of complete structure and function, various two-stage scheduling models and any partitioning and process parameter can be conveniently verified, and a platform is provided for researching an efficient IMA two-stagescheduling strategy; and the prototype platform adopts a modular structure to support to add a new scheduling strategy and a new scheduling algorithm, each module can be conveniently replaced, and themodel exhibits good expandability.

Description

technical field [0001] The invention belongs to the technical field of avionics, and in particular relates to a two-stage scheduling model and a prototype platform of a comprehensive modularized avionics system. Background technique [0002] With the rapid development of microelectronics technology, computer technology, and aviation technology, modularization and integration have become the development trend of avionics systems. As a new generation of avionics system, the integrated modular avionics system (Integrated Modular Avionics, IMA) gathers all computing resources, I / O resources and other system resources together and is managed by a software platform. This architecture based on resource sharing fundamentally solves the shortcomings of traditional avionics systems, mainly in the following aspects: 1) It can realize dynamic resource allocation according to demand, and reduce the redundancy of resource allocation to the greatest extent. 2) The isolation of software an...

Claims

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Application Information

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IPC IPC(8): G06F9/48
CPCG06F9/4881
Inventor 路辉周乾琳池程芝
Owner BEIHANG UNIV
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