Robot and method for controlling thereof

A method performed by a robot, the method comprising:

• detecting, by the robot, a user;
• based on the user being detected in an image, obtaining, by the robot, a plurality of sentences to be uttered by the robot to the detected user, wherein the plurality of sentences are stored in the robot;
• identifying, by the robot, whether a motion is allocated to the plurality of sentences;
• identifying, by the robot, a first sentence to which a motion to be performed while the robot utters is not allocated among the plurality of sentences;
• identifying, by the robot, a second sentence including a pre-allocated second motion, the second sentence to be uttered in a second time section adjacent to a first time section in which the first sentence is to be uttered, the pre-allocated second motion being pre-allocated when identifying the second sentence;
• identifying one or more motions having a similarity to the second motion less than a predetermined value among a plurality of pre-stored motions in a memory;
• based on a time to utter the first sentence being greater or equal to a predetermined time,
• obtaining, by the robot, a first motion different from the second motion pre-allocated to the second sentence among the identified one or more motions as a motion corresponding to the first sentence, and
• outputting, by the robot, a voice corresponding to the first sentence and performing, by the robot, the first motion in synchronization with the output of the voice corresponding to the first sentence;
• and
• based on the time to utter the first sentence being shorter than the predetermined time, performing, by the robot, uttering the first sentence without performing a motion.

One or more non-transitory computer-readable storage media storing one or more computer programs including computer-executable instructions that, when executed by one or more processors of a robot individually or collectively, cause the robot to perform operations, the operations comprising:

• detecting, by the robot, a user;
• based on the user being detected in an image, obtaining, by the robot, a plurality of sentences to be uttered by the robot to the detected user, wherein the plurality of sentences are stored in the robot;
• identifying, by the robot, whether a motion is allocated to the plurality of sentences;
• identifying, by the robot, a first sentence to which a motion to be performed while the robot utters is not allocated among the plurality of sentences;
• identifying, by the robot, a second sentence including a pre-allocated second motion, the second sentence to be uttered in a second time section adjacent to a first time section in which the first sentence is to be uttered, the pre-allocated second motion being pre-allocated when identifying the second sentence;
• identifying one or more motions having a similarity to the second motion less than a predetermined value among a plurality of pre-stored motions in a memory;
• based on a time to utter the first sentence being greater or equal to a predetermined time,
• obtaining, by the robot, a first motion different from the second motion pre-allocated to the second sentence among the identified one or more motions as a motion corresponding to the first sentence;
• and
• outputting, by the robot, a voice corresponding to the first sentence and performing, by the robot, the first motion in synchronization with the output of the voice corresponding to the first sentence;
• and
• based on the time to utter the first sentence being shorter than the predetermined time, performing, by the robot, uttering the first sentence without performing a motion.