Apparatus for managing electric devices

1. An electronic device comprising:

a communication unit;

a display; and

a controller configured to:

control the communication unit to receive first information regarding amounts of electric energy consumed by external electronic devices during a first preset period of time and second information regarding a total amount of electric energy set as a total amount of electric energy available for all of the external electronic devices to consume during a second preset period of time;

generate, based on the first information and the second information, a plurality of alternative operation schedules for operating the external electronic devices within the total amount of electric energy available for all of the external electronic devices to consume during the second preset period of time,

control the display to display on a screen the plurality of alternative operation schedules,

receive a selection, from a user of the electronic device, of one of the plurality of alternative operation schedules, and

control the external electronic devices to operate according to the selected alternative operation schedule, for the second preset period of time.

2. The device of claim 1 , wherein the communication unit receives electricity cost-related information from an electric power supply, and provides the electricity cost-related information to the controller.

3. The device of claim 2 , wherein the controller produces the alternative operation schedules based on the electricity cost-related information.

4. The device of claim 1 , wherein the controller identifies priority orders of the external electronic devices and allocates amounts of electric energy to the external electronic devices according to the priority orders.

5. The device of claim 1 , wherein the controller:

determines the second information based on a setting of each of the external electronic devices regarding a classification of the external electronic devices,

wherein each of the plurality of alternative operation schedules is generated based on the classification of the external electronic devices,

wherein the external electronic devices are classified into the default external electronic devices and the optional external electronic devices, and

wherein the default external electronic devices operate with a fixed amount of electric energy during the second preset period of time and the optional external electronic devices operate with a remaining amount of electric energy during the second preset period of time,

wherein the remaining amount of electric energy is calculated by subtracting the fixed amount of electric energy from the total amount of electric energy available for all of the external electronic devices to consume.

6. The device of claim 5 , wherein the controller identifies preset priority orders of the optional external electronic devices and allocates the remaining amount of electric energy to the optional external electronic devices.

7. The device of claim 5 wherein the controller is further configured to:

identify amounts of electric energy consumed by the external electronic devices during a specific time,

modify the selected alternative operation schedule when a total of the identified amounts of electric energy is more than an amount of electric energy that the external electronic devices operating according to the selected alternative operation schedule are planned to consume during the specific time, wherein modifying the selected alternative operation schedule is performed by changing an amount of electric energy allocated to the optional external electronic devices, and

control the external electronic devices to operate according to the modified alternative operation schedule during a remaining time of the second preset period of time.

8. The device of claim 1 , further comprising:

an input unit and/or a display unit serving as the input unit for receiving the second information, including the second preset period of time.

9. The device of claim 1 , wherein the controller provides a mobile device with the plurality of alternative operation schedules, information regarding amounts of electric energy consumed by the external electronic devices at a time point, and information regarding a determination result as to whether a total of the amounts of electric energy consumed by the external electronic devices, according to the selected alternative operation schedule, is equal to the total amount of electric energy available for all of the external electronic devices to consume.