While mobile computing becomes general, the battery problem of a portable information device has been focused increasingly, and developments of various power-saving devices and researches of a power management are done positively. However, conventional power-saving solution can never prevent application software from unwilled shutdown. In this research, autonomous evacuation of the application from a portable information device is realized by creating application as a mobile agent. Moreover, in order to two or more application agents to perform smooth evacuation, dynamic evacuation is realized by introducing the concept of the Crisis Management Center. In this paper, the Easter (Escape Agent System from dying batTERy) system which realizes the above function is described, and the effect is evaluated.
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