Surveillance control device, surveillance system, surveillance method, and recording medium

A surveillance method comprising:

• receiving first information regarding occurrence of an anomalous event and a position of occurrence of the anomalous event;
• receiving, through wireless communication, information for identifying one or more portable communication terminals being present in a specific area including the position of occurrence;
• pinpointing, from among the portable communication terminals and based on the position of occurrence and the information for identifying, a portable communication terminal to which an information provision demand regarding the position of occurrence is to be transmitted;
• transmitting the information provision demand to the portable communication terminal;
• and
• receiving, from the portable communication terminal, second information regarding the occurrence of the anomalous event and the position of occurrence of the anomalous event, the second information being related to the information provision demand.

A non-transitory recording medium storing a surveillance program that causes a computer to implement:

• receiving first information regarding occurrence of an anomalous event and a position of occurrence of the anomalous event;
• receiving, through wireless communication, information for identifying one or more portable communication terminals being present in a specific area including the position of occurrence;
• pinpointing, from among the portable communication terminals and based on the position of occurrence and the information for identifying, a portable communication terminal to which an information provision demand regarding the position of occurrence is to be transmitted;
• transmitting the information provision demand to the portable communication terminal;
• and
• receiving, from the portable communication terminal, second information regarding the occurrence of the anomalous event and the position of occurrence of the anomalous event, the second information being related to the information provision demand.