Information processing system, information processing method, and computer program

An information processing method to be executed by an information processing system including a first information processing device, a second information processing device, and a server connected to the second information processing device via a network, the information processing method comprising:

• transmitting, by the first information processing device, a signal including first identification information of the first information processing device;
• receiving, by the second information processing device which is at a specific location, the signal transmitted from the first information processing device;
• transmitting, by the second information processing device to the server, time information about the time at which the signal was received, intensity information based on a reception intensity of the signal, and the first identification information together with second identification information of the second information processing device;
• storing, by the server, the time information, the intensity information, the first identification information, and the second identification information in association with each other;
• receiving, by the server, a designation of specific first identification information of a specific first information processing device;
• and
• extracting, by the server, one or more pieces of other first identification information, stored in association with specific second identification information, based on the specific second identification information stored in association with the specific first identification information indicated by the designation.

A non-transitory computer readable medium storing computer executable instructions which, when executed by processing circuitry of a server of an information processing system that includes a first information processing device and a second information processing device which is installed at a specific location, and the server being connected to the second information processing device via a network, wherein the second information processing device receives a signal including first identification information of the first information processing device transmitted from the first information processing device, cause the server to:

• receive, from the second information processing device, time information about the time at which the signal was received by the second information processing device from the first information processing device, intensity information based on a reception intensity of the signal, and the first identification information to the server together with second identification information of the second information processing device:
• store the time information, the intensity information, the first identification information, and the second identification information in association with each other;
• receive a designation of specific first identification information of a specific first information processing device;
• and
• extract one or more pieces of other first identification information, stored in association with specific second identification information, based on the specific second identification information stored in association with specific first identification information indicated by the designation.