PROBLEM TO BE SOLVED: To provide an antiaircraft marker for alleviating a load of the installation work of the antiaircraft marker to a tripod at reference point measurement using a GNSS antenna and a total station.;SOLUTION: An antiaircraft marker 1 is attached to a tripod which is installed at a reference point and a control point when performing reference point measurement, and the reference point measurement is performed by a reflector observation from a total station by attaching a pole to an adapter which is attached to a female screw 3 arranged at the antiaircraft marker 1. The reference point measurement by the reception of a positioning radio wave from satellite positioning is performed by attaching a GNSS antenna to the female screw 3 which is arranged at the antiaircraft marker 1.;SELECTED DRAWING: Figure 2;COPYRIGHT: (C)2019,JPO&INPIT
展开▼
