Welcome to Remote Aerial Surveys
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Remote

Aerial Surveys combines the latest advances in Unmanned Aerial Vehicles (UAVs) with innovative uses of imaging equipment to perform a wide range of high-quality mapping & aerial surveys. Drones are the perfect solution to get up-to-date high-resolution imagery filling in the gaps from other survey methods by providing more recent & more precise data.

There are several reasons why land surveyors are increasingly adding drones to their portfolio of instruments. Firstly, using a drone can vastly reduce the time spent collecting accurate data. By acquiring raster data from the sky – in the form of geo-referenced digital aerial images, with the high resolutions, you can gather millions of data points in one short flight.

With collection made so simple, you can focus your energy on using and analysing data, rather than working out how to gather it. With such a large increase in the amount of physical data being collected, this does mean an increase in office time spent processing and utilising this data. However, this expansion is canceled out many times over by the huge time savings a drone produces out in the field. With the less time spent on the ground, the organization can minimize the risk to surveying teams when measuring sites such as mines, unstable slopes, and transport routes.

Aerial surveys and geo-mapping with a UAV
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Our Pilots can generate data for orthophotos, 3D models in high density with great accuracy. In-house flight planning software makes it simple to obtain all the parameters essential for professional-class photogrammetry.

 
What can be done with UAV and Drones
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What can be done with UAV and Drones;

  • Survey of challenging sites such as Tailings, quarries, sand pits, landfills, coal stockpiles, etc.
  • Volume calculation
  • GM creation
  • Creation of location and inventory plans
  • Creation of topographic images
  • Initial planning preparation
  • Construction updates

Some of the advantages of utilising the UAV

  • Reach inaccessible locations that conventional equipment cannot reach.
  • Increase safety for the surveying staff.
  • High quality, accurate results.
Steps taken for a typical surveying programme
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1- Initial Planning – Initial site visit or a well-defined requirement document is reviewed. Requirements are defined and signed off.

2- Flight planning - This is created to capture the drone’s surveying data.

3- Defining the Control points - The process of setting up checkpoints for the land profile to achieve high accuracy geo-referencing. The reference points are set manually before the flight.

4- Flight operations - Starts with the schedule would be uploaded to the UAV and the data acquisition is done completely automatic. Normal surface flight recordings are done at a 90°degree angle, with images taken oriented straight down to the surface, creating nadir.

5- Georeferencing images - Complex work is achieved with The geoboxsyncs the camera and the onboard GPS system, storing the trigger point. The current GPS coordinates directly into the photo's EXIF data, allowing processing of geo-referenced data in popular GIS systems.

6- Orthophotos and 3D modelling - Is firstly by creating an image-based 3D model with appropriate software by using the geo-referenced images to build the texture for the orthophoto or 3D model. Needless and expensive camera calibrations are not required. The Agisoft Enso software performs a supplementary calibration by using the investigating camera parameters to the workflow.