Patent ID: 8717292

Claim:
A moving object detection apparatus, comprising: a receive unit configured to sequentially receive a physical quantity corresponding to a movement of a moving object; a controller configured to convert physical quantities received for a period of time by the receive unit to coordinates on a coordinate system; and a storage unit configured to store the coordinates converted to by the controller, wherein the controller is configured to: detect the movement of the moving object based on a change in one or more of the coordinates, calculate a circle on the coordinate system that includes a minimum size which contains the coordinates, wherein the calculated circle includes a line formed by two arbitrary points among the coordinates as a diameter thereof, determine whether the calculated circle contains all of the coordinates or not, wherein the calculated the circle includes a minimum diameter among circles determined to contain all of the coordinates, and wherein the calculated circle is designated as a first figure; determine whether at least one of the coordinates converted from the physical quantity received by the receive unit is contained in the first figure or not, after the first figure is calculated, and in response to the determination that the at least one of the coordinates is contained in the first figure, determine that the moving object is stopping or has stopped.