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Deadline-based hybrid key system static energy consumption optimization method

A deadline and key system technology, applied in the field of error compensation, can solve the problems of unsatisfactory energy saving effect and large time overhead, and achieve the effect of prolonging the use time, reducing the replacement cycle, and reducing production costs

Inactive Publication Date: 2019-07-30
HUAQIAO UNIVERSITY
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Problems solved by technology

[0003] At present, research on hybrid critical systems mainly focuses on scheduling feasibility and time overhead. Few studies focus on energy consumption as the main research goal, and only a few studies have unsatisfactory energy-saving effects and excessive time overhead.

Method used

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  • Deadline-based hybrid key system static energy consumption optimization method
  • Deadline-based hybrid key system static energy consumption optimization method
  • Deadline-based hybrid key system static energy consumption optimization method

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Embodiment Construction

[0033] The present invention will be further described below through specific embodiments.

[0034] see figure 1 , a method for optimizing static energy consumption of a hybrid key system based on a deadline provided by the present invention comprises the following steps:

[0035] Step 101: Establish a mixed critical periodic task model.

[0036] The mixed critical periodic task model consists of a set of n mixed critical periodic tasks Γ={τ 1 ,τ 2 ,…,τ n}, each mixed critical periodic task τ i (1≤i≤n, i is an integer) consists of triplet {T i ,ξ i ,C i} composition, where T i is the mixed critical period task τ i cycle.

[0037] ξ i is the mixed critical period task τ i The key level of , which can be expressed as ξ i ={LO,HI}, mixed critical period task τ i When the critical level of is LO, it is a periodic task with a low critical level, and the mixed critical periodic task τ i When the key level of is HI, it is a high key level periodic task.

[0038] C i ...

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Abstract

The invention discloses a deadline-based hybrid key system static energy consumption optimization method. The method comprises the following steps: establishing a hybrid key period task model; calculating a deadline coefficient x; scheduling the mixed key period task according to the deadline; calculating the execution speed Si of the mixed key period task,wherein the low-key-level periodic task is executed at the speed Si all the time, the normal load of the high-key-level periodic task is executed at the speed Si, and the additional load of the high-key-level periodic task is executed at themaximum processor speed. According to the method, the mixed key period task is scheduled according to the deadline, the lowest execution speed Si is determined, and the system energy consumption is effectively reduced.

Description

technical field [0001] The invention relates to the field of error compensation, in particular to a method for optimizing static energy consumption of a mixed critical system based on a deadline. Background technique [0002] A hybrid critical system refers to an embedded real-time system that performs multiple functions on the same platform and meets the constraints of power consumption, cost, and volume. Hybrid critical systems are widely used in industries such as automobile manufacturing and aircraft manufacturing. A mixed-critical system must ensure that critical functions can be performed correctly, and non-critical functions can be waived under special circumstances. Energy consumption remains an important goal for hybrid critical systems, especially for applications like drones. [0003] At present, research on hybrid critical systems mainly focuses on scheduling feasibility and time overhead. Few studies focus on energy consumption as the main research goal, and o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/04
CPCG06Q10/04G06Q10/06316G06Q50/04Y02P90/30
Inventor 张忆文何霆
Owner HUAQIAO UNIVERSITY
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