| 摘要 |
PROBLEM TO BE SOLVED: To attain a surveying device that allows only operators manipulating a surveying device to easily check locations of underground pipes at a working site even if no experts are available.SOLUTION: A surveying device comprises: a profile data acquisition unit that scans a plurality of mutually parallel scanning lines in a survey range, and acquires profile data P about each of the scanning lines; a marker setting unit that sets an underground pipe marker m at a location having a possibility that the underground pipe exists in each profile data P acquired by the profile data acquisition unit; a marker extraction unit that, when the underground pipe marker m exists in other profile data p in a form overlapping one profile data P in an allowance range AA to be defined to the location of one underground pipe marker m, extracts the underground pipe marker m as an emphasis underground pipe marker mF; and an emphasis display unit that implements an emphasis display of the emphasis underground pipe marker.SELECTED DRAWING: Figure 3 |
