Electronic device power saving control method, power saving control system, and program

摘要

PPROBLEM TO BE SOLVED: To conduct power saving control reflecting activity property with a small calculation amount. PSOLUTION: A predicting device 300 for an operation mode transition frequency obtains the starting time of an operation mode from the history of a working/operation conditions of electric equipment, and the generation frequency of the continuation time of the working mode for each incidental information; creates a histogram of three variables including a starting time section, a continuation time section, and the generation frequency of the working mode transition; and extracts the operation mode transition frequency from the starting time of the working mode, the continuation time and the incidental information. A utility function adjustment device 400 compares the execution state of the power saving with a power consumption target value, referring to the history of the power consumption amount of the electronic equipment to change the utility function. A utility calculation device 500 for each working mode calculates a utility value from the working mode transition frequency, power consumption performance in each working mode, transition necessary time to each working mode, and the utility function. An optimum working mode judgement device 600 obtains the optimum working mode highest in the utility value in the nearest working/operation condition. PCOPYRIGHT: (C)2008,JPO&INPIT