Abstract: A power controlling system and a method thereof are provided. The power controlling system includes a plurality of connection units, a management server and a user server. Each connection unit has a measuring unit. The measuring units measure power statuses of power provided to a plurality of electrical appliances from an external power to respectively generate power information. The connection units are divided into a plurality of connection unit groups, each of connection unit groups respectively represents power consumption intervals corresponding to the electrical appliances. The management server has a first microcontroller and a database. The database records a first predetermined electricity load value. The first microcontroller receives the power information and compares it with the first predetermined electricity load value to generate a power distribution proposal. The user controller has a control interface, receives the power distribution proposal and displays it to the control interface.

Abstract: An electronic device includes a body and an antenna unit. The body has a casing, in which the casing includes a back cover and a first side-wall. The antenna unit disposed in the casing is adjacent to the first side-wall and has a plurality of slots, in which the antenna unit includes a first conductor, a second conductor and a third conductor. The first conductor faces the first side-wall. The second conductor is bent connected to a side-edge of the first conductor to face the back cover and grounded to the back cover. The third conductor is bent connected to the other side-edge of the first conductor, in which the slots are formed on at least one of the first conductor and the third conductor.