Robot control system, robot control method and output control method

A robot control method performed by a computer of a robot control system including a robot that outputs an utterance content to a user in an exhibition hall placing an exhibition, comprising steps of:

• recording to a memory device an inspection action of the user at a time of attendance of the user in the exhibition hall as a history, the history comprises the exhibition placed in the hall and an inspection time period spent by the user for inspection as to the exhibition;
• when the user attends again, determining an appropriate utterance content by using the history associated with the attending user;
• and
• making the robot output the determined utterance content.

A robot control system including a robot capable of autonomously moving in a space that an exhibition is placed, comprising:

• an acquiring module that acquires a position and a direction of a user in the space;
• a first determining module that determines whether the user enters a predetermined first range corresponding to the exhibition;
• a second determining module that determines whether the direction of the user turns to the exhibition;
• and
• an outputting module that makes the robot output an utterance content about the exhibition when it is determined that the user enters the predetermined first range and that the direction of the user turns to the exhibition;
• a third determining module that determines whether the user is out of a second range;
• and
• a stop module that stops the output of the utterance content when it is determined that the user is out of the second range,
• wherein the second range surrounds the predetermined first range and is broader than the predetermined first range.

An output control method in a robot control system including a robot capable of autonomously moving in a space that an exhibition is placed, wherein a processor of the robot control system performing:

• an acquiring step that acquires a position and a direction of a user in the space;
• a first determining step that determines whether the user enters a predetermined first range corresponding to the exhibition;
• a second determining step that determines whether the direction of the user turns to the exhibition;
• an outputting step that makes the robot output an utterance content about the exhibition when it is determined that the user enters the predetermined first range and that the direction of the user turns to the exhibition;
• a third determining step that determines whether the user is out of a second range;
• and
• a stopping step that stops the output of the utterance content when it is determined that the user is out of the second range,
• wherein the second range surrounds the predetermined first range and is broader than the predetermined first range.