摘要
使用嵌入式系统的睡眠/唤醒功能为系统设置空闲时隙,可以进行电源管理,以此为依据,设计出利用嵌入式系统中央处理器调频的动态电源管理模式,用负载在系统闲置时间的周期统计作为计算方法,控制器输出频率的调整以负载变化比例相应地进行频率变换,这种电源管理方案融入了动态理念,与系统实际运行需求相吻合,满足系统电能使用周期,既保证了系统稳定性,还降低了运行功耗。
In the paper, sleep/wake functions of embedded system are used to set a free time slot for the system, which can be used for the power management.On the basis, the dynamic power management mode is proposed using the embedded system CPU frequency modulation mode.The load in the system idle time cycle statistics is used as the calculation method,and the adjustment of the output frequency of the controller corresponds to the frequency of the load changes.The power management solution uses the dynamic concept, and meets the electricity use cycle.It ensures the system stability,and reduces the power consumption at the same time.
作者
李成勇
Li Chengyong(School of Electronic and IoT,Chongqing Institute of Engineering, Chongqing 400056,Chin)
出处
《单片机与嵌入式系统应用》
2017年第11期38-41,共4页
Microcontrollers & Embedded Systems
基金
重庆市教委科学技术研究项目<基于光学式的多点触摸识别技术的应用研究>(604162762KJ201)
