Air conditioner and control method thereof

A control method of an air conditioner, the control method comprising:

• detecting an object via a motion detection sensor;
• determining, based on the detecting of the object via the motion detection sensor, an activity amount of the object via the motion detection sensor;
• determining whether the activity amount of the object satisfies a predetermined first condition;
• determining, based on the activity amount of the object satisfying the predetermined first condition, whether a number of second predetermined time sections, in a first predetermined time section, in which the object is detected via the motion detection sensor satisfies a predetermined second condition, or whether the activity amount of the object detected via the motion detection sensor in the first predetermined time section satisfies a predetermined third condition;
• and
• determining, based on determining whether the predetermined second condition or the predetermined third condition is satisfied, whether the object exists in a space.

A non-transitory computer readable medium comprising instructions that are configured to, when executed by at least one processor of an air conditioner, cause the at least one processor to:

• detect an object via a motion detection sensor;
• determine, based on the detecting of the object via the motion detection sensor, an activity amount of the object via the motion detection sensor;
• determine whether the activity amount of the object satisfies a predetermined first condition;
• determine, based on the activity amount of the object satisfying the predetermined first condition, whether a number of second predetermined time sections, in a first predetermined time section, in which the object is detected via the motion detection sensor satisfies a predetermined second condition, or whether the activity amount of the object detected via the motion detection sensor in the first predetermined time section satisfies a predetermined third condition;
• and
• determine, based on determining whether the predetermined second condition or the predetermined third condition is satisfied, whether the object exists in a space.