| 摘要 |
This distance sensor is equipped with a distance detection unit and an obstacle information generation unit into which distance data output from the distance detection unit is input. The distance detection unit includes: a plurality of pulsed semiconductor light-emitting elements; a drive unit for the plurality of pulsed semiconductor light-emitting elements; a line image sensor that detects reflected light generated from an obstacle in front of the plurality of pulsed semiconductor light-emitting elements; and a distance detection control unit that controls the drive unit and the line image sensor. The distance detection control unit controls the drive unit such that the plurality of pulsed semiconductor light-emitting elements oscillate synchronously at a prescribed pulse width, calculates from the reflected light the delay time in the pixels of the line image sensor by means of phase difference measurement using electric charge distribution, and calculates data pertaining to the distance between the pulsed semiconductor light-emitting elements and the obstacle from the delay time and the pulse width. Thus, a low-cost distance sensor that obtains obstacle information with high sensitivity and at a high frame rate without using a mobile component, and a conveying robot using the distance sensor are provided. |
