Surveying device, and calibration checking method and calibration checking program for surveying device

A calibration checking method for a surveying device having a laser positioning part combined with a laser scanner, the laser positioning part including an optical system that is used in sighting an object to be positioned, the method comprising:

• identifying a position of an apex as a crossing location of three or more planes constituting a three-dimensional structure, on a basis of a result of positioning performed by sighting the apex with the use of the optical system by the laser positioning part;
• calculating a plane equation of each of the three or more planes on a basis of resultant data of the laser scanning performed on an area containing the apex by the laser scanner;
• calculating the crossing location of the three or more planes of the three-dimensional structure on a basis of the plane equation of each of the three or more planes;
• and
• comparing the identified crossing location of the three or more planes and the calculated crossing location of the three or more planes with each other.

A non-transitory computer recording medium storing computer executable instructions for checking a calibrated condition between a laser positioning part and a laser scanner, the laser positioning part including an optical system that is used in sighting an object to be positioned, the laser positioning part and the laser scanner being equipped in combination on a surveying device, wherein the computer executable instructions, when executed by a computer processor, cause the computer processor to:

• identify a position of an apex as a crossing location of three or more planes constituting a three-dimensional structure, on a basis of a result of positioning performed by sighting the apex with the use of the optical system by the laser positioning part;
• calculate a plane equation of each of the three or more planes on a basis of resultant data of the laser scanning performed on an area containing the apex by the laser scanner;
• calculate the crossing location of the three or more planes of the three-dimensional structure on a basis of the plane equation of each of the three or more planes;
• and
• compare the identified crossing location of the three or more planes and the calculated crossing location of the three or more planes with each other.