Smart charging method

A smart charging method, configured to supply a charging device with power through a power socket by using a domestic power source, wherein the charging device comprises a plurality of charging regions disposed inside thereof, and each of the charging regions comprises a plurality of sockets configured to charge a plurality of mobile electronic devices, and the charging device comprises a control circuit configured to perform automatic charging control on the mobile electronic devices plugged in the charging regions, and the smart charging method comprises:

• (A) turning on a power source of the charging device;
• (B) waiting for a predetermined period in which an inrush current prevention circuit absorbs inrush current;
• (C) by using a plurality of current sensors of the control circuit electrically connected to the inrush current prevention circuit, obtaining total current required by the all charging regions;
• (D) by using a micro control unit electrically connected to the current sensors, determining whether the total current of the all charging regions is higher than a maximal current supply value;
• when the total current of the all charging regions is higher than a maximal current supply value,
• (E) repeatedly turning on and off a plurality of overload relays disposed between the control circuit and the charging regions respectively, by a predetermined number of times;
• (F) resetting the power source by turning off all of the plurality of overload relays, and repeating the steps (A)-(D);
• when the total current of the all charging regions is not higher than a maximal current supply value,
• (G) by turning on all of the overload relays by using the micro control unit, supplying the current required by all of the charging regions for charging;
• (H) determining whether total current of at least two charging regions is higher than the maximal current supply value;
• when the total current of the at least two charging regions is higher than the maximal current supply value,
• (I) by controlling the charging regions, performing a charging operation for a first charging period on the charging regions respectively, and repeating the steps (B)-(D);
• and
• when the total current of the at least two charging regions is not higher than the maximal current supply value,
• (J) by controlling the at least two charging regions and remaining charging region, performing a charging operation for a second charging period on the at least two charging regions and the remaining charging region respectively, and repeating the steps (B)-(D).