Detection of a target by a surveying device is automated to achieve simple work. A surveying method uses a surveying device for detecting and identifying a target device having an entire circumference reflection prism and a code display that is arranged in a vertical direction. The surveying device has a laser scanner configured to perform laser scanning along a vertical plane while horizontally rotating. The surveying method includes performing laser scanning by emitting laser scanning light along the vertical plane while making the surveying device horizontally rotate, and detecting the code display on the basis of the laser scanning light that is reflected back.

A surveying target sphere for use in a three-dimensional measurement has a spherical surface having a constant radius from a center and includes a north pole, a south pole, and a central axis passing through the center of the surveying target sphere and linking the north pole and the south pole, and a level is mounted at the north pole.

A surveying target sphere for use in a three-dimensional measurement has a spherical surface having a constant radius from a center and includes a north pole, a south pole, and a central axis passing through the center of the surveying target sphere and linking the north pole and the south pole, and a level is mounted at the north pole.

When repairing a road, it is possible to easily conduct a survey on the road condition at the time of starting repair. The ortho-image creation method of the present invention includes a coordinate acquisition step to acquire three-dimensional coordinates of a plurality of survey markers 6, a photography step to photograph a plurality of photographed images of the plurality of survey markers 6 by a UAV 3 flying at an altitude of 20 meters or less above the ground in such a manner that each survey marker 6 is included in at least two of the photographed images, and an ortho-image creation step to create an ortho-image on the basis of the three-dimensional coordinates of each feature point acquired by the coordinate acquisition step and the plurality of photographed images photographed by the photography step.

Described is a device for marking a survey object. The device comprises a base having a bottom plate attachable to the survey object, and a rotary plate disposed on the bottom plate and rotatable relative thereto about a first axis, a single support arm projecting from and rotationally fixed relative to the rotary plate, and a survey marker releasably attached to and rotatable relative to the free end of the support arm about a second axis that is perpendicular to the first axis.

Described is a device for marking a survey object. The device comprises a base having a bottom plate attachable to the survey object, and a rotary plate disposed on the bottom plate and rotatable relative thereto about a first axis, a single support arm projecting from and rotationally fixed relative to the rotary plate, and a survey marker releasably attached to and rotatable relative to the free end of the support arm about a second axis that is perpendicular to the first axis.

In measurement with a surveying device having a surveying function and a laser scanner function, three-dimensional coordinates of a reflecting prism acquired with the surveying function and three-dimensional coordinates of a vertex of a polyhedron generated by processing point group data acquired with the laser scanner function are made to coincide with each other. The reflecting prism is used together with the surveying device having the surveying function and the laser scanner function, is provided to a measurement target object, and is disposed in such a position that the vertex position of the measurement target object coincides with or is considered to coincide with the optical center position of the prism.

In measurement with a surveying device having a surveying function and a laser scanner function, three-dimensional coordinates of a reflecting prism acquired with the surveying function and three-dimensional coordinates of a vertex of a polyhedron generated by processing point group data acquired with the laser scanner function are made to coincide with each other. The reflecting prism is used together with the surveying device having the surveying function and the laser scanner function, is provided to a measurement target object, and is disposed in such a position that the vertex position of the measurement target object coincides with or is considered to coincide with the optical center position of the prism.

The present invention improves upon the existing GPS survey rod with a rover mount, a collector mount, and a lever to spray the paint. The bottom part of the GPS survey rod includes the paint canister insert, and the spray paint tip. There are three holes in the tip of the rod to expel the paint. This product is made of aluminum or carbon fiber, a very light weight yet durable material. Specially designed paint cans and conventionally paint cans are used in this device. This tool will allow the user to be more efficient by merging two jobs and devices into one. The disclosure additionally includes a linkage between the activation lever and the bottom part configured to depress a nozzle of the paint can in response to a depression of the activation lever.

The present invention improves upon the existing GPS survey rod with a rover mount, a collector mount, and a lever to spray the paint. The bottom part of the GPS survey rod includes the paint canister insert, and the spray paint tip. There are three holes in the tip of the rod to expel the paint. This product is made of aluminum or carbon fiber, a very light weight yet durable material. Specially designed paint cans and conventionally paint cans are used in this device. This tool will allow the user to be more efficient by merging two jobs and devices into one. The disclosure additionally includes a linkage between the activation lever and the bottom part configured to depress a nozzle of the paint can in response to a depression of the activation lever.