Multi-period dynamic power management method

A technology of dynamic power consumption and management method, applied in the direction of data processing power supply, electrical digital data processing, digital data processing components, etc., can solve the problem that the power consumption management method cannot take into account the system performance and stable and long-lasting work well. Maximize system performance

Inactive Publication Date: 2017-04-26
TIANJIN UNIV
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AI Technical Summary

Problems solved by technology

[0018] Aiming at the problem that the power consumption management method of the existing environmental embedded system can not take into account the system performance and stable and durable work well, the present invention proposes an energy-driven multi-period dynamic power consumption management method

Method used

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specific Embodiment approach

[0045] Build a system storage energy model:

[0046]

[0047] In the i-th time period, the solar energy value predicted by the prediction unit is Es(i) (this value is the product of the power Ps obtained by the prediction module and the system duty cycle), the remaining energy Cell(i) of the energy storage module, Indicates the leakage coefficient of the energy storage module;

[0048] Build a power consumption model:

[0049] E. c (i,k)=E constant +τk(i)E dynamic

[0050]The system power dissipation is determined by the static power dissipation E constant and dynamic power dissipation k×τ×E dynamic Composition, where k represents the number of times the application processing module completes the dot product operation in a single period, E dynamic Indicates the power consumed by the application processing module to complete a dot product. τ represents the working period of the application processing module, and its duration is equal to the duration of a single tim...

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Abstract

The invention discloses a multi-period dynamic power management method, applied to an environment embedded system composed of an energy collection module, an energy storage module, a dynamic power management module and an application processing module. The method comprises the following steps: (1) predicting a collection energy value of the system in a future moment; (2) collecting the performance parameters of the system, including the current storage capacity of the system, the collection energy prediction value of the system in the future moment, static power consumption of the system and dynamic power consumption of the system; (3) establishing a system energy storage model; (4) establishing a system power consumption model; (5) solving a system power consumption problem; and (6) transferring a solution result to a system working unit. According to the multi-period dynamic power management method disclosed by the invention, the collection energy of the environment embedded system in the current time period and multiple time periods in the future, and an energy prediction maximum error index is imported to determine the working state of the next time period of the system in real time, and thus the system performance is maximized on the premise of satisfying the energy constraints.

Description

technical field [0001] The invention relates to the field of power consumption management of embedded systems, and more specifically relates to a multi-period dynamic power consumption management method. Background technique [0002] The dynamic power consumption management method is a method of adjusting the future work of the system according to the existing and possible future working status of the system, and its goal is to realize the stable operation of the system. [0003] Documents [1-9] introduced a variety of dynamic power management methods. These methods can be classified according to the number of periods and basis of dynamic power management. According to the number of time periods, it can be divided into single-period dynamic power management methods and multi-period dynamic power management methods. The single-period dynamic power management method (hereinafter referred to as the single-period method) determines the system in the next period according to the...

Claims

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Application Information

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IPC IPC(8): G06F1/32
CPCG06F1/3203
Inventor 李鑫刘强
Owner TIANJIN UNIV
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