| 摘要 |
PURPOSE: A network system and a control method are provided to monitor energy use information of an air conditioning unit by using a terminal. CONSTITUTION: A first control unit(110) recognizes the amount of power consumption or power rates from the amount of current. A first memory unit(160) stores power information for the amount of current, the amount of power consumption, and the power rates. A terminal(200) comprises a second communication module which communicates with a first communication module. A second display unit(230) comprises the terminal. The second display unit displays the power information corresponding to a setting condition. [Reference numerals] (110) First control unit; (120) First communication module; (130) Current sensing unit; (150) Timer; (160) First memory unit; (170) First display unit; (210) Second control unit; (220) Second communication module; (230) Second display unit; (240) Second memory unit
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