Patent ID: 8711031

Claim:
An apparatus for adjusting vertical sensor-alignment, comprising: a reflected wave measuring unit for measuring the signal intensity of received reflected waves for sensor signals transmitted from a sensor; a vertical misalignment determining unit which determines that the sensor is vertically misaligned if the measured signal intensity of the reflected waves is lower than a reference signal intensity; a vertical alignment adjustment unit for automatically correcting the vertical misalignment of the sensor, in response to a determination by the vertical misalignment determining unit that vertical misalignment of the sensor occurs, by controlling a tilting motor, by executing switching to one of a plurality of transmitting antennas which are differently set in terms of transmitting angle, or by executing switching to one of a plurality of receiving antennas which are differently set in terms of receiving angle; and a target sensing distance measuring unit for measuring the longest target-sensible distance as a target sensing distance on the basis of the received reflected waves, wherein the reflected wave measuring unit measures signal intensity of ground-reflected waves on the basis of received reflected waves for sensor signals transmitted from the sensor, and wherein the misalignment determining unit determines that the sensor is vertically misaligned when the signal intensity of the ground-reflected waves measured by the reflected wave measuring unit exceeds a reference signal intensity, and the measured target sensing distance is reduced beyond a reference target sensing distance.