Remote controller, remote control system, and remote control method

A remote control method of remotely controlling running motion of each of at least one of a plurality of moving objects, comprising:

• an acquiring step of acquiring sensor information acquired by a sensor installed at a place different from the plurality of moving objects, the sensor information indicating the at least one of the plurality of moving objects;
• a detecting step of detecting the moving object included in the sensor information;
• a control value generating step of generating a control value for defining the running motion of each of the at least one of the plurality of moving objects using the sensor information;
• and
• a transmitting step of transmitting the control value to a control subject moving object of the plurality of moving objects as a subject of control in the running motion, wherein
• in the control value generating step, a retreat control value is generated if at least either one of a first case and a second case applies, the first case being a case where two or more of the moving objects of the plurality of moving objects overlap each other in the sensor information, the second case being a case where an expectation is established before acquisition of the sensor information that the two or more moving objects overlap each other when the sensor information is acquired, the retreat control value being generated as the control value for defining the running motion of at least any of the two or more moving objects in order to establish a locational relationship allowing a detection subject moving object of the two or more moving objects as a subject of detection using the sensor information to be detected in the detecting step without causing an overlap of the detection subject moving object with other of the plurality of moving objects.