Walking Situation Detection Device, Walking Situation Detection Method, and Walking Situation Detection Program

A walking situation detection device includes an acquisition unit which acquires an acceleration value according to an action of a user in a predetermined cycle, an interval detection unit which detects a first time interval and a second time interval from the acceleration value, a determination unit which determines a position where the user carries a terminal in his or her body based on a ratio of the first time interval to the second time interval, and a number of steps determination unit which determines the number of steps of the user based on the determination result of the determination unit.