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Low power consumption real time task parameter model dispatching method facing embedded system

An embedded system and real-time task technology, applied in the direction of data processing power supply, multi-programming device, sustainable building, etc., can solve problems such as not considering real-time performance and tediousness, achieve low power consumption, ensure real-time performance, and ensure stable effect

Inactive Publication Date: 2007-04-11
ZHEJIANG UNIV
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  • Summary
  • Abstract
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Problems solved by technology

[0006] In the above methods, the implementation requires a relatively cumbersome process, and does not consider real-time performance, so there are certain limitations in the application of the current embedded system field

Method used

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  • Low power consumption real time task parameter model dispatching method facing embedded system
  • Low power consumption real time task parameter model dispatching method facing embedded system
  • Low power consumption real time task parameter model dispatching method facing embedded system

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Embodiment Construction

[0041] When implementing the parameter model scheduling method for low-power real-time tasks in embedded systems, the operating system takes two constraints, real-time and energy-saving, into consideration during the scheduling process.

[0042] The specific implementation process of the simplified method for low-power real-time task scheduling in embedded systems is as follows.

[0043] 1) Time slice scheduling of real-time tasks

[0044] When there are multiple real-time tasks in the real-time task queue, the system will adjust the tasks in the system through time slices to meet the needs of each real-time task.

[0045] The time slice scheduling method is to divide the running time of the processor into equal time slices. When a task runs on the processor, it can only run for one time slice length. When the time slice is used up, it is forced to stop execution and replace A task is executed.

[0046] When the task on the processor is scheduled, the scheduler selects a new...

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Abstract

This invention provides a low power real-time task scheduling method oriented embedded system for modeling, solution and optimization of real-time task scheduling for low power. It achieves low power consumption by using the technology and Real-time dynamic FM_PM Web tablet model, real-time scheduling. It ensures a real-time function based on the Real-time tasks in the model with a real-time restrict. Meanwhile, the program use of dynamic FM_PM operating systems, real-time processor to adjust to state Energy-saving way to achieve the objective during the process of implementing the mandate.

Description

technical field [0001] The invention relates to the technical field of energy saving based on embedded system software, in particular to a method for dispatching parameters of real-time tasks with low power consumption for embedded systems. Background technique [0002] In the field of power management of portable embedded devices, the current difficulty lies in not only meeting the requirements of portable terminals for power supply, but also achieving small footprint, light weight and longer power supply time. Power solutions for next-generation consumer electronics should focus on both hardware and software technologies, including: (1) How to achieve the required power performance in a small form factor, involving thermal management, noise reduction, Technologies such as battery management and functional integration; (2) dynamic power management technology, which depends on CPU performance, software, middleware, and user requirements for battery replacement intervals; (3)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/32G06F9/46
CPCY02B60/144Y02D10/00
Inventor 陈天洲黄江伟郑臻炜钱杰梁晓
Owner ZHEJIANG UNIV
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