Emergency detection device, emergency detection system, recording medium, and method therefor

An emergency detection system comprising:

• an emergency detection device that communicates with a plurality of portable terminals which detect position information on the basis of radio waves sent from a GPS satellite,
• wherein the emergency detection device includes
• a position information acquisition section that communicates with the plurality of portable terminals, and acquires the position information of the plurality of portable terminals,
• a presumption section that presumes occurrence of an emergency on the basis of at least one of movement situations or stop situations of the plurality of portable terminals, the situations being detected from the position information of the plurality of portable terminals, and
• a determination section that examines whether or not a point of the occurrence of the emergency presumed by the presumption section corresponds to an exclusion area which is preset and that determines that the emergency occurs at the point of the occurrence in the case where the point of the occurrence does not correspond to the exclusion area.

A non-transitory computer-readable recording medium that stores an emergency detection program for functioning a computer as an emergency detection device, the emergency detection program causing the computer to execute functions of:

• communicating with a plurality of portable terminals, which detect position information on the basis of radio waves sent from a GPS satellite, and acquiring the position information of the plurality of portable terminals;
• presuming occurrence of an emergency on the basis of at least one of movement situations or stop situations of the plurality of portable terminals, the situations being detected from the position information of the plurality of portable terminals;
• and
• examining whether or not a point of the occurrence of the emergency presumed by the presuming corresponds to an exclusion area which is preset, and determining that the emergency occurs at the point of the occurrence in the case where the point of the occurrence does not correspond to the exclusion area.

A method of detecting emergency by causing an emergency detection device to execute functions of:

• communicating with a plurality of portable terminals, which detect position information on the basis of radio waves sent from a GPS satellite, and acquiring the position information of the plurality of portable terminals;
• presuming occurrence of an emergency on the basis of at least one of movement situations or stop situations of the plurality of portable terminals, the situations being detected from the position information of the plurality of portable terminals;
• and
• examining whether or not a point of the occurrence of the emergency presumed by the presuming corresponds to an exclusion area which is preset, and determining that the emergency occurs at the point of the occurrence in the case where the point of the occurrence does not correspond to the exclusion area.