Computer Power Management System Based on the Face Detection

摘要

In order to reduce the unnecessary power waste of computer system, the working principle of earlier Windows power management program and the new face recognition function of Windows 8 are analyzed in this paper. And the conflict between the convenience of use and the effects of energy conservation and environmental protection is given attention to. We put forward a new method based on the detection of frontal face in front of the monitor instead of the events of keyboard or mouse. Experimental results show that the method is a fast and effective one. Particularly, when user is leaving for a moment, this method is better than the work of Windows power management program. The results tell us that this method can save electrical energy about 4.28 % than windows power management program.