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Design and development of embedded power management

Author: LiChenMing
Tutor: QinZhiGuang；FuZuo
School: University of Electronic Science and Technology
Course: Software Engineering
Keywords: Embedded Systems Power Management (PM) Advanced Power Management (APM) Dynamic Power Management (DPM)
CLC: TN86
Type: Master's thesis
Year: 2009
Downloads: 236
Quote: 0
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Abstract


Embedded systems power management goal is to meet the user as much as possible to reduce the energy consumption of the system , on the performance requirements of the premise , to extend the standby time of the device . With the rise of the market volume and performance requirements of mobile embedded devices become increasingly prominent , embedded devices, small size, high performance with limited battery energy between the embedded system power management to resolve this contradiction effective means. In this paper, Linux development platform , an ordinary PC, Linux power management experimental environment analysis and discussion in the Linux power management on the basis of external devices for embedded systems power management strategy . An ordinary PC, Linux power management strategy has hardware support system through the BIOS hardware drivers for system power management , Chapter timing to change the system by analyzing the driver to modify the BIOS so that Linux power management support state function , and design application in Chapter test power management under Linux . However, the power management in embedded systems without hardware support , power management from the software side , the main goal of the design of software power management in embedded systems to achieve a viable power management strategy , and the use of techniques and algorithms does not change the existing Linux scheduling mechanism . Include: the characteristics of the external device , the external device power management mechanisms in embedded Linux , including the state of the external device monitoring , sleep and wake-up operation , and management strategies ; provide a variety of operating modes for the processor , in embedded Linux systems , power management , and control of the processor to sleep or wake up at the appropriate time . In this paper, the fourth chapter focuses on the external device power management strategy in embedded systems .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radio equipment,telecommunications equipment > Power supply
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