Wireless terminal detection system, wireless terminal detection device, wireless terminal detection method, and storage medium having program stored therein

A wireless terminal detection device comprising:

• at least one memory configured to store instructions;
• and
• at least one processor configured to execute the instructions to:
• measure a position of a reception-side wireless terminal;
• determine, based on position history information of the reception-side wireless terminal, whether the reception-side wireless terminal is moving or resting at a position measurement date/time indicated by the position history information, and extract, as time intervals of individual movement patterns, respectively, time intervals from when the reception-side wireless terminal starts moving until the moving ends and time intervals from when the reception-side wireless terminal starts resting until the resting ends;
• classify the movement patterns into ordinary patterns and non-ordinary patterns based on classification results in which the movement patterns are classified in accordance with times and positions;
• and
• determine whether a transmission-side wireless terminal, which is a transmission source of radio waves received by the reception-side wireless terminal, is a suspicious terminal based on a reception history of radio waves from the transmission-side wireless terminal in time intervals classified as the non-ordinary patterns.

A wireless terminal detection method comprising:

• measuring a position of a reception-side wireless terminal;
• determining, based on position history information of the reception-side wireless terminal, whether the reception-side wireless terminal is moving or resting at a position measurement date/time indicated by the position history information, and extracting, as time intervals of individual movement patterns, respectively, time intervals from when the reception-side wireless terminal starts moving until the moving ends and time intervals from when the reception-side wireless terminal starts resting until the resting ends;
• classifying the movement patterns into ordinary patterns and non-ordinary patterns based on classification results in which the movement patterns are classified in accordance with times and positions;
• and
• determining whether a transmission-side wireless terminal, which is a transmission source of radio waves received by the reception-side wireless terminal, is a suspicious terminal based on a reception history of radio waves from the transmission-side wireless terminal in time intervals classified as the non-ordinary patterns.