Remote operation assistance server, remote operation assistance system, and remote operation assistance method

A remote operation assistance server for assisting a remote operation of a work machine through a first remote operation apparatus by a first operator, and a remote operation of the work machine through a second remote operation apparatus different from the first remote operation apparatus by a second operator, the remote operation assistance server comprising:

• a first assistance processing element which, when recognizing that a remote operation of the work machine by the first operator of the first remote operation apparatus ends, based on communication with at least one of the first remote operation apparatus and the work machine, confirms, based on communication with the second remote operation apparatus whether a possibility of a remote operation of the work machine through the second remote operation apparatus by the second operator of the second remote operation apparatus exists or not by determining whether an operation through an input interface of the second remote operation apparatus by the second operator for expressing an intention of a remote operation of the work machine exists or not;
• and
• a second assistance processing element which, when it is confirmed by the first assistance processing element that the possibility of the remote operation of the work machine by the second operator of the second remote operation apparatus does not exist, stops operation of an engine of the work machine in response to receiving a remote operation stop instruction for the work machine being received from the first remote operation apparatus, and, when it is confirmed by the first assistance processing element that the possibility of the remote operation of the work machine by the second operator of the second remote operation apparatus exists, causes the operation of the engine of the work machine to continue even after receiving the remote operation stop instruction for the work machine from the first remote operation apparatus.