OBJECT DETECTION DEVICE AND OBJECT DETECTION METHOD

In the present invention, a moving body (30) is provided with a plurality of ultrasonic sensors (20) for transmitting search waves and receiving reflected search waves. An object detection device (10)is provided with an object detection unit (12) for detecting an object using direct waves that are reflected waves received by the same ultrasonic sensor that transmitted the original search wave andindirect waves that are reflected waves received by a different ultrasonic sensor from the one that transmitted the original search wave, and a temperature variation detection unit (11) for detectingthe occurrence of temperature variation greater than or equal to a prescribed temperature variation in the ambient temperature of the object or detecting a prescribed temperature variation conditionin which the temperature variation may occur. If the object detection unit detects the prescribed temperature variation condition using the temperature variation detection unit, the object detection unit carries out detection av