Golf Course Surveying

Job Type Golf course topography
CountryScottsdale, Arizona
Drone TypeDJI Phantom 3 Quadcopter
Number of Images21
Accuracybetter than 2 cm (0.06 ft)
DatagramTM3D savings30 field minutes (1 person) instead of 1 hour (2 persons) using Total Station and terrestrial scanning
1 office hour instead of 6 hours

Project Description

Surveying the topography of a golf course with an accuracy within the range of 1 to 3 centimeters (9 hundredths of a foot).

The original effort estimate for surveying the topography area using conventional surveying techniques and terrestrial scanning was

  • 1 field hour, 2 persons, taking Total Station measurements and multiple scans.
  • 6 office hours to process the scan data and create a CAD model of the topographic area.

Data Acquisition

The area was photographed using a DJI data-quisitionPhantom 3 Quadcopter equipped with a 12 MP camera.

A total of 21 photos of the area were taken from ~12 meters (36 feet) above the ground. Photoshooting was done from the perimeter towards the center.

 

DatuGram™3D Savings

The actual time to survey and create an accurate 3D CAD model of the site was 1.5 hours:

  • 30 minutes in the field, one person: 20 minutes to measure 9 control points and 10 minutes to photograph the site.
  • 1 office hour to geo-reference the data, create an accurate 3D CAD model of the site, and create 2191 new automatic 3D topo points using DatuGramTM3D Photogrammetry software.

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Achieved Results

A 3D CAD model, including the sprinklers and the topographic area, was created in a DXF format. In addition, a point file with the new point names, codes, descriptions and coordinates was generated.

Overall 2206 points were generated:

  • 15 new 3D points (the sprinklers) were drafted directly on the images
  • 2191 new 3D topo points of the area topography were automatically created

Measurement accuracy of all the points was better than 2cm (0.06 ft.) in both position and elevation.

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