| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an obstruction detector capable of accurately detecting the positions of a plurality of objects even when receiving reflected waves from a plurality of objects using a plurality of receivers. SOLUTION: This obstruction detector is provided with a transmitting part for transmitting radio wave to a detection area; receiving parts 23 for respectively receiving reflected wave from the objects; delay time computing parts 4, 5 for respectively detecting delay time of the reflected wave received by the respective receiving parts 2, 3, to the transmission wave; a distance-angle computing part 6 for detecting a distance from the respective receiving parts 2, 3 to the transmitting part 1 via the objects from the detected results of the delay time computing parts 4, 5 and obtaining the distance and angle to the objects from the transmitting part 1 on the basis of the distance and the position relation between the respective receiving parts 2, 3 and the transmitting part 1; and a combination determining part 7 for detecting a set of reflected waves reflected by the same object, out of a plurality of reflected waves when the respective receiving parts 2, 3 receive a plurality of reflected waves reflected by a plurality of objects, and outputting the detected result to the distance-angle computing part 6.</p> |
