A new paradigm on battery powered embedded system design based on User-Experience-Oriented method

2nd International Conference on Mathematical Modeling in Physical Sciences 2013

物理学;数学

Wang, Zhuoran^1 ; Wu, Yue^2

Solution Department of IStarChip Semiconductor Technology (Shanghai) Co. Ltd., Shanghai, China^1

Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, VA 23284, United States^2

关键词: Battery capacity;    Battery powered;    Hardware and software designs;    Material engineering;    Modelling method;    Research topics;    User experience;    Working current;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/490/1/012115/pdf
DOI  :  10.1088/1742-6596/490/1/012115

来源: IOP

【 摘 要 】

The battery sustainable time has been an active research topic recently for the development of battery powered embedded products such as tablets and smart phones, which are determined by the battery capacity and power consumption. Despite numerous efforts on the improvement of battery capacity in the field of material engineering, the power consumption also plays an important role and easier to ameliorate in delivering a desirable user-experience, especially considering the moderate advancement on batteries for decades. In this study, a new Top-Down modelling method, User-Experience-Oriented Battery Powered Embedded System Design Paradigm, is proposed to estimate the target average power consumption, to guide the hardware and software design, and eventually to approach the theoretical lowest power consumption that the application is still able to provide the full functionality. Starting from the 10-hour sustainable time standard, average working current is defined with battery design capacity and set as a target. Then an implementation is illustrated from both hardware perspective, which is summarized as Auto-Gating power management, and from software perspective, which introduces a new algorithm, SleepVote, to guide the system task design and scheduling.