Android Power Management Mechanism And Software Design

With the rapid growth of smart phone users, especially after Google launched android mobile operating system in 2008, smart phones have become a necessity of people’s daily work and life. Although the function of smart phones have met the basic needs of people, the phones affect people’s work due to the long-term use which causes a large power consumption. Therefore, the study of power-saving smart phone system has been put on the agenda.The system mainly studies four function modules, including the basic power state, the power-saving mode, the ranking list of power consumption and the system settings. The main achievement of the basic power state is to monitor residual capacity, to calculate available 2G/3G talking time, to count available online time and other functions. The power-saving mode includes the utmost limit mode, the strong power mode and the normal mode, altering to different calculation. The ranking list of power consumption ranks power consumption of each application procedure. It is convenient for users to set according to their needs in order to save power. The study, according to the android platform and Google api, achieves application development system on the android platform and other basic functions as interactive interface and data storage. It also gets information about the running status of CPU and other hardware, battery quantity, application thread, etc. All the information is the basis of the system functions. Some graphic plug-ins and template are used for designing a friendly interactive interface, which can help users find what they are looking for immediately and set the function modules.The subject accomplishes power-saving software by analyzing the literature of the subject, case studies and practical research with the technological mean of using application system of the android platform. In actual use, users can set the modules and the current number of the applications according to their demands after installing in the android smart phones, which aims to reduce the consumption of power.