| 摘要 |
PURPOSE: A multi-tap which has a function to display use electric energy is provided to predict a rating used amount which can be additionally used, thereby saving energy by suppressing unnecessary use of electronic devices. CONSTITUTION: A multi-tap which has a function to display use electric energy includes a detection unit(10), a comparison unit(20), a display unit(30), and an alert unit(40). The detection unit is connected to each outlet serially to detect power consumption flowing in a terminal. The comparison unit sets information obtained through the detection unit by dividing the entire power consumption at fixed rate. The display unit displays a comparison result of the comparison unit. The alert unit alerts a user through an alert sound or an alert light if the rating use amount is reached.
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