T3

Pteryx UAV photo mapping from Krzysztof Bosak on Vimeo.



After completing testign campaign and delivering the first examples we haverushed to publish a short documentary.
Pteryx is an UAV designed for civilianuse, together with its mission-oriented autopilot.
Our focus is in reliableoperation and single button interface. basically you have to put UAV on the
rails, select missions with rotary knobs, hold takeoff button until the
autopilot completes propulsion test, pull the bungee lock.
Pteryx can lift800g compact digital SLR in roll-stabilised head, providing superior quality
photography unachievable by other means: Better flying precision than manned
crafts, inaudible electric propulsion, very few parts to break (only 2 control
surfaces, folding propeller).

Endurance up to 120min, parachute landing,protected propeller.
Possible takeoff from hand and manual piloting.
By law,limited to visual range (some 500m) what yields 1km x 1km map.


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Comments

  • "The square map is orthogonal but again nobody cares about georeferencing."
    I totally disagree with that statement. UAVs are platforms for remote sensing observations and therefore georeference is a requirement! Unless we want to return to the early experiments in aerial photography of the 19th century... then we should use pigeons instead of UAVs. It would cost largely less money!
  • T3
    @Mark
    The motorway results are not georeferenced because this was for making and overview of works to be carried out.
    They are not even orthogonal as we have used a prototype without stabilisation, but with extra batteries and 2 cameras. The camera that worked was in continuous shooting mode so the points should be remapped using timestamp, yet nobody took the effort.
    The square map is orthogonal but again nobody cares about georeferencing.
    Normally we have points from GPS and corresponding photos (roll (should be null on the head), pitch, course+heading estimate, time, lat, lon) that we can provide for processing software.
    I havent finished GPS export but my logdecode makes approx photo placing in kml since the beginning.
    Georeferencing can be done roughly by inserting and overlay into google earth. All depends on application.
    The key idea is that UAV flew exactly where it was requested so the user just took a look at the soil and planned operations along the 18km long section accordingly.
  • Krzysztof, really sweet work! Are the stitched results orthogonal and georeferenced?
  • Amazing system, makes me wish I had a bunch of $$$ !
  • T3
    Thank you everybody for encouragement.
    BTW The first screenshot of motorway mission are on the webpage. I will make a movie of it.
    It appears beides making autopilot, UAV and arranging photo stitching, we will serve as mission consultants and operators on polish teritory as nobody looks ready for business until everything is known, clear and simple.
    Our next step will be simple UAV ATC services, national communication network backup and Global Lost&Found Database ;-)
  • Moderator
    Yes I will second that, well done, its not as easy as people think.
  • Fantastic work Krzysz. You say lucky guesses, but I am sure it is your comprehensive understanding of the subject matter that allows you to make educated guesses about what will work and what wont.

    I hope the Pteryx is a BIG success.
  • T3
    @Eric T Photo-stitching in this example was done by microsoft ice. But we have sub-contractors that can process the data, also if the user places reference points on the ground or knows landmark positions. This processing is inevitably very costly if you want to gave a few cm precision map. So on Polish territory you can contact TriggerComposites and we can arrange with airspace authorities and image processing company an operation that otherwise would be more costly and complicated with manned technology.

    @SciFly LOS restrictions in some countries forig moving of the base station. In other countries you can have many spotters so you can fix them on the ground and they can relay 'John, it's ok' secret message. In Poland we did 19km long 2-way photomapping of motorway construction site by following it on a local road keeping within LOS without problem. We didn't blocked any traffic and ATC was quick to grant a permission because weather was too rainy for others to takeoff in the whole area.
  • Can you beat the LOS restictions by using a chase vehicle in order to cover more ground?
  • What program are you using to do the photo-stitching?
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