Hardware-based Power Management for Real-Time Applications
نویسندگان
چکیده
This paper presents a new power management technique integrated into a multithreaded microcontroller with builtin real-time scheduling schemes. Power management is done by hardware based on the Guaranteed Percentage scheduling scheme. The applied power saving mechanisms are frequency reduction, dynamic voltage scaling and pipeline gating. Our evaluation showed that for a given workload with an average processor utilization of 22.6% and a frequent change of utilization in the range of 0% to 58% energy consumption could be reduced to 12.7% of the energy required by a system running at top speed.
منابع مشابه
FPGA Implementation of JPEG and JPEG2000-Based Dynamic Partial Reconfiguration on SOC for Remote Sensing Satellite On-Board Processing
This paper presents the design procedure and implementation results of a proposed hardware which performs different satellite Image compressions using FPGA Xilinx board. First, the method is described and then VHDL code is written and synthesized by ISE software of Xilinx Company. The results show that it is easy and useful to design, develop and implement the hardware image compressor using ne...
متن کاملReal Time Dynamic Simulation of Power System Using Multiple Microcomputers
Recent developments in the design and manufacture of microcomputers together with improved simulation techniques make it possible to achieve the speed and accuracy required for the dynamic simulation of power systems in real time. This paper presents some experimental results and outlines new ideas on hardware architecture, mathematical algorithms and software development for this purpose. The ...
متن کاملA New Adaptive Load-Shedding and Restoration Strategy for Autonomous Operation of Microgrids: A Real-Time Study
Islanding operation is one of the main features of a MicroGrid (MG), which is realized regarding the presence of distributed energy resources (DERs). However, in order to deal with the control challenges, which an MG faces during island operation, particularly when the transition is associated with certain excessive load, an efficient control strategy is required. This paper introduces a Centra...
متن کاملCross-Layer Customization Platform for low-Power and Real-Time Embedded Applications
Title of dissertation: CROSS-LAYER CUSTOMIZATION PLATFORM FOR LOW-POWER AND REAL-TIME EMBEDDED APPLICATIONS Xiangrong Zhou, Doctor of Philosophy, 2008 Dissertation directed by: Professor Peter Petrov Department of Electrical and Computer Engineering Modern embedded applications have become increasingly complex and diverse in their functionalities and requirements. Data processing, communication...
متن کاملControl Simulation and Experimental Verification of Maximum Power Point Tracking Based on RT-LAB (TECHNICAL NOTE)
The maximum power point tracking (MPPT) control in the Photovoltaic system is the key control technology, however present controller has the disadvantages of long development cycle, high cost and complex verification, and there are some disadvantages carrying out totally physical simulation or totally digital simulation of different control algorithms. This paper carried out design of hardware ...
متن کامل