BUCBAT自适应动态电源管理策略

BUCBAT dynamic power management policy

结合电池放电特性,提出一种自适应超时动态电源管理策略BUCBAT。基于电池放电过程中电压逐渐降低的特性,BUCBAT根据电池放电电压的大小动态调整超时阙值;采用两块电池以特定频率轮流供电,充分利用电池放电电压的自恢复特性。实验结果表明,与超时策略相比,BUCBAT动态电源管理策略在兼顾系统QoS性能的同时,能够合理地管理系统功耗,从而延长系统的可持续工作时间。

A novel dynamic power management policy BUCBAT was proposed according to the battery uncharged characteristic. BUCBAT adjusted the value of TimeOut based on the decrease of voltage during the uncharged of batteries. In order to take advantage of recovery characteristic of batteries, BUCBAT adopted two batteries to supply the power management component（PMC） at a fixed frequency in turn. The experiments results show that compared with the TimeOut policy, BUCBAT pays attention to the QoS of the system and reduces the power of system to extend the working time of the system.