Study And Design Of Low Power Management Based On Embedded System Of μ Clinux

With the implement of the stratagem of "informatization engine industrialization",embedded system centering on microprocessor has been widely used in industrial and civilian equipments,and entered into our lives.With the development of the embedded system,the consumers want more and more electronic products carrying easily.Many traditional electronic products have been portable,such as portable DVD,notebook computer and so on.On the other hand, the consumers want that the electronic products have the first-class display,sound level and more longevity, which present strict demands to the power management of embedded system.The level of the energy consumption has been the criterion to measure the embedded system.In this paper, power management of μ clinux was studied and designed,and its effect of power management was validated.In this paper, we first introduce the study status of power management of the embedded system, and the methods of power management of embedded system are discussed from three layers of system class,RTL class,landscape class.Then analyze the algorithm of dynamic power management home and abroad, and introduce a algorithm of dynamic power management which would be used in μ clinux in this paper.