Patent ID: 11960022
Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 10:
11. A method for calculating spatial coordinates of a plurality of assistant point stations by an assistant point position calculation device in a spatial coordinate positioning system composed of at least one ground base point station of which spatial coordinate was known and the plurality of assistant point stations of which spatial coordinates were not known, comprising steps of:
receiving laser distance information between each of the at least one ground base point station and a specific assistant point station of the plurality of assistant point stations;
receiving wireless distance information between the plurality of assistant point stations;
generating a system of equations for each of the distance information (Lij) with respect to the laser distance information and the multiple wireless distance information,

Lij=Lji=√{square root over ((Xi−Xj)2+(Yi−Yj)2+(Zi−Zj)2)}

wherein i, j=1, 2, . . . , M+N, M is the number of the at least one ground base point station and N is the number of the plurality of assistance point stations; and
calculating spatial coordinates (Xn, Yn, Zn) of the plurality of assistant point stations from the system of equations.