Robot control device, robot, robot control method, and program recording medium

A robot comprising:

• a drive circuit configured to drive the robot to perform a predetermined operation;
• and
• a robot control device being configured to control the drive circuit including:
• a memory storing instructions;
• and
• one or more processors configured to execute the instructions to:
• determine, when a human is detected, an action to be executed on the human and controlling a robot to execute the action;
• determine, when a reaction of the human for the determined action is detected, a possibility that the human will speak to the robot, based on the reaction;
• and
• control an operation mode of the robot, based on a result of determination.

A robot control method comprising:

• determining, when a human is detected, an action to be executed on the human and controlling a robot to execute the action;
• determining, when a reaction of the human for the action determined is detected, a possibility that the human will speak to the robot, based on the reaction;
• and
• controlling an operation mode of the robot, based on a result of determination.

A program recording medium storing a robot control program that causes a robot to execute:

• a process that determines, when a human is detected, an action to be executed on the human and controlling a robot to execute the action;
• a process that determines, when a reaction of the human for the action determined is detected, a possibility that the human will speak to the robot, based on the reaction;
• and
• a process that controls an operation mode of the robot, based on a result of determination.