Hitachi Construction Machinery

Global

Preliminary Surveying

UAV Surveying

Surveying a wide area can be accomplished in a short time

  • Establish evaluation points and verification points using anti-aircraft signs.
  • Automatically navigate along the flight route entered in a tablet etc.
  • A digital camera is mounted on the UAV.

Merits of UAV Surveying

A wide range of surveying is possible in a short time

Low cost compared to manned aircraft

Areas difficult to access can be photographed easily

Possible to photograph at low altitude / close proximity, which is difficult with manned aircraft

Process of UAV Surveying

1

Operation planning

Make provisions to ensure operations do not exceed the error range of 3D point cloud data, which is the result of UAV surveying.

2

Establishment of control and verification points

Establish necessary control points to convert measurement results to a site coordinate system. Match the points on the photograph with the coordinates on the ground.

3

Flight Plan creation

Plan the altitudes and routes necessary to obtain the predetermined measurement accuracy.

4

Flight/Photography

In principle, photography is carried out by way of automated flight in accordance with previously entered programs and GPS, sensors, etc., in weather conditions suitable for photography.

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