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Hard real-time hybrid task dispatching method

A task scheduling and task technology, applied in the field of integrated avionics, can solve the problem that the scheduling method cannot meet the time response requirements of the avionics system, flight control, and electromechanical system at the same time, and achieve the effect of meeting the time requirements

Active Publication Date: 2013-04-24
AVIC NO 631 RES INST
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AI Technical Summary

Problems solved by technology

[0003] To solve the problem that the existing scheduling methods cannot meet the time response requirements of the avionics system, flight control, and electromechanical systems at the same time, the present invention provides a strong real-time hybrid task scheduling method, which can adapt to the degree of integration of the existing airborne electronic systems The situation is getting higher and higher, and it can meet the comprehensive requirements of avionics, flight control, and electromechanical systems at the same time

Method used

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Embodiment Construction

[0028] 1] Create several partitions:

[0029] Partitions include multiple common partitions and a special partition,

[0030] There is a partition linked list group in each partition, and the partition linked list group is composed of multiple task linked lists with different priorities. Different tasks are hung in the corresponding task linked list according to the priority, and the tasks in the same task linked list have the same priority. class;

[0031] The partition linked list group in the special partition is composed of two types of partition linked list groups, one of which is composed of a plurality of extremely low priority task linked lists, and the other type of partition linked list group is composed of extremely high priority task linked lists ;

[0032] The partition linked list group in the common partition is composed of multiple medium to high priority task linked lists;

[0033] 2] When scheduling tasks in a partition, high-priority tasks can preempt low...

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Abstract

The invention relates to a hard real-time hybrid task dispatching method. The hard real-time hybrid task dispatching method comprises the following steps of (1) creating a plurality of subregions; (2) creating static time dispatching lists for a plurality of common subregions according to user demands; and (3) creating task linked lists in the dispatching subregions. The hard real-time hybrid task dispatching method solves the problem that time response requirements of an avionics system and a flight control electromechanical system cannot be simultaneously meet by means of an existing dispatching method, can adapt to the situation that the totalization degree of an existing onboard electronic system is higher and higher and can simultaneously meet the requirements for full comprehension of avionics, flight control and electromechanical systems.

Description

technical field [0001] The invention belongs to the field of integrated avionics, and in particular relates to a strong real-time mixed task scheduling method. Background technique [0002] With the development of avionics technology, the degree of integration of airborne electronic systems is getting higher and higher, gradually developing from the current physical integration to functional integration. In some new aircrafts, there is even a situation where the electromechanical system, flight control system and avionics system are fully integrated. In this "big synthesis" context, a physical platform undertakes different types of tasks that have very different requirements on the processing characteristics of the underlying platform. For example, electromechanical applications may need to quickly process multiple external events, flight control applications may need to quickly control the rudder surface based on current sensor data, and avionics applications may need to p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/46
Inventor 胡宁周霆郝继锋张灯杨琼张勇虞保忠何翔尹超
Owner AVIC NO 631 RES INST
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