| 摘要 |
PROBLEM TO BE SOLVED: To sharply reduce aiming work man-hours and improve aiming accuracy. SOLUTION: This device is provided with a detection range setting means 21 setting the detection range that a transmission/reception unit 11 transmits the detection signal in the prescribed range, receives the reflected signal of the transmitted detection signal, and detects an obstacle via a signal process; a reference reflector 2 installed at the prescribed relative position to a vehicle body; a reference position memory means 23 storing the reference position in advance; and an adjustment instructing means instructing the transmission of the detection signal for adjusting the detection range. The setting of the detection range setting means 21 is changed so that the detection position in the detection range of the reference reflector 2 based on the reflected signal from the reference reflector 2 of the detection signal transmitted by the adjustment instructing means coincides with the reference position stored in the reference position memory means 23. |
