| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a distance up to an object with higher reliability, simply and stably in a distance-measuring apparatus, for a vehicle, which is provided with a radar distance-measuring device and with a triangulation distance- measuring device. SOLUTION: A changeover signal is output from a filter 12 when the change rate of the output of a radar distance-measuring device 1 exceeds a set value on the increase side of a distance. Then, in a state that the measuring reliability, of a triangulation distance-measuring device 2, computed by a reliability computing device 5 is higher than a prescribed level, the output of the triangulation distance-measuring device 2 is selected by a selector 13 when the output of the triangulation distance-measuring device 2 is less than a set distance. In a normal state other than it, the output of the radar distance-measuring device 1 is selected by the selector 13, and an alarm 9 is alarmed and operated when a changeover signal is output from the filter 12.</p> |
