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Task scheduling method and energy management device for self energy supply system

A technology for task scheduling and self-supply, which is applied in circuit devices, data processing applications, forecasting, etc., and can solve problems such as energy waste and time loss

Active Publication Date: 2017-04-19
TSINGHUA UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, the technical problem to be solved by the method is: how to avoid energy waste and time loss caused by the failure of task execution atomic operation

Method used

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  • Task scheduling method and energy management device for self energy supply system
  • Task scheduling method and energy management device for self energy supply system
  • Task scheduling method and energy management device for self energy supply system

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Embodiment Construction

[0063] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0064] figure 1 It is a flowchart of a task scheduling method for a self-powered system provided by an embodiment of the present invention. Such as figure 1 As shown, the task scheduling method for self-powered systems provided by an embodiment of the present invention includes:

[0065] In step S101, the risk coefficients of each task at the current moment are calculated according to the execution time of each task in the preset task information table.

[...

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Abstract

The invention provides a task scheduling method and energy management device for a self energy supply system, and relates to the task scheduling field. The method comprises that risk coefficients of tasks in a preset task information table in the present moment are calculated according to execution time of the tasks; energy collected by the self energy supply system within a preset future period is predicted, and average power of the self energy supply system within the preset future period is obtained; self-adaptive voltage thresholds of the tasks in the present moment are calculated according to the risk coefficients, average power, average execution power and execution time of the tasks respectively; the self-adaptive voltage thresholds of the tasks are compared with a voltage value of an energy-storage capacitor in the present moment, and a task set in which the self-adaptive voltage thresholds are lower than the voltage value is obtained; and a task to be executed in the present moment is selected from the task set according to priorities of the tasks. Thus, the completion rate of a total task of the system can be improved.

Description

technical field [0001] The invention relates to the field of task scheduling, in particular to a task scheduling method and an energy management device for self-powered systems. Background technique [0002] In recent years, the Internet of Things and wearable devices have developed by leaps and bounds, and high performance and small size have become an important development trend of wearable devices. The demand for high performance means the improvement of system energy consumption, and the current development speed of batteries has lagged far behind the increase in energy consumption requirements, and the battery power supply still has the problems of large volume, weight and expensive maintenance costs. The energy harvesting system can continuously provide clean and pollution-free energy for the entire system by collecting external energy. Therefore, self-supply has become an important energy acquisition method for the Internet of Things. However, self-supply has the de...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q50/06H02J3/00
CPCG06Q10/04G06Q50/06H02J3/00H02J2203/20
Inventor 刘勇攀李泽伟李金阳武通达杨华中内贵崇吉村隆治谷内光治
Owner TSINGHUA UNIV
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