Dynamic power supply management construction based on embedded system

Abstract

This invention discloses a dynamic electric source management frame which consists of operating point management, operating status management, strategy management, equipment restraint management, system loading detection and strategy optimization. The operating point refers to straggling parameter collection; the operating status refers to mapping of multi-operating points; the management strategy refers to defining the detailed operating points mapped by the operating status; the restraint management was realized by claiming restriction on DPM through drive; the loading detection checks the function burden of the system; strategy optimization was realized by calculating the outcome of the detection.

Description

technical field [0001] The invention belongs to the technical field of computer power management, in particular to a dynamic power management framework based on an embedded system. technical background [0002] At present, more and more electronic circuit and system designs are facing the contradiction brought about by high performance and low energy consumption. Increasingly complex applications, such as multimedia playback on mobile devices, demand high system performance. And in order to be able to use battery power, while reducing the impact on the environment such as heat and noise, the system must have low power consumption. In other words, high performance and low power consumption is a major challenge in electronic design. [0003] An electronic system can be viewed as a collection of components. Typically, only certain components in an electronic system must be in a high-performance state during certain time slices. Dynamic power manage...

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Problems solved by technology

[0006] In the past, the discussion about the DPM framework was relatively abstract. Generally, it only gave an abstract overall architecture, and then briefly explained the concepts in the architecture. Some also gave the abstract implementation of the architecture. However, they are only theoretical It is described above, but it does not involve how the DPM framework is implemented in the actual system, which lacks practicality

Moreover, the previous DPM framework adopted an active dynamic power management strategy, which did not consider the greater energy consumption caused by the device switching between power states. That is to say, the DPM framework did not consider the problem of policy optimization.

Since strategy optimization is not considered, energy cannot be saved to the greatest extent, and sometimes it leads to greater energy consumption

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