This morning I flew created a simple waypoint survey and a polygon survey. The data from the one of the waypoints can be accessed via the Dropbox link below. I am using the latest Explorer App on Smart Controller (
1.0.77.1) and Firmware (
V.2.3.8) on my Evo II Enterprise drone with the Dual FLIR 640R camera. Please keep in mind that this is my first attempt with a thermal camera.
Shared with Dropbox
www.dropbox.com
Comments:
1. The simple Waypoint survey I designed did not fly as designed in the Autel Explorer app. The first waypoint I had the drone go up to 394' AGL and take 10 photos rotating 16 deg from a compass heading of 290 deg to 70 deg. Waypoint #2 was the same but at 300' AGL. Waypoints #3 and #4 were a short distance away and a repeat of Waypoints #1 and #2. The drone did some strange things but did manage to take 24 thermal photos. I also included both thermal and rgb images from the Rectangular Survey. Please keep in mind that I switched between thermal and rgb in the Autel Explorer app. Not complete coverage of both thermal and rgb images. Posted to Dropbox.
2. I had pre-programmed mission saved as a Polygon Survey created from an imported KML polygon. Each time I got a
Mission upload failed. I tried modifying the existing polygon survey and even creating a new polygon survey. The same results each time. I created a simple rectangular survey and everything seemed to be fine. See screen captures.
3. I thought that having a Dual 640R that I would be able to capture both thermal IR and RGB photos of the same spot. Unless I am doing something wrong, this does not appear to be the case. You have to select (make active) rgb or ir thermal resulting in one of the other not both. If this is the case, I am very disappointed. As I switched (made active) between thermal and rgb in the Explorer App, I ended up with a survey with a mix of thermal IR images and RGB images but not of the same spot. I included screen captures of what files were stored on the SD Card.
4. Regarding radiometric data. I am a bit confused about what temperature information is being saved with these thermal images. I know these are JPEG format. In one of the screen captures you can see that the dark blue area was about 86 deg F. When I look at these images in FLIR Tools and hit Auto, they should a much lower temperature range. Does this require R.JPEG (Radiometric JPEG) in order to expose temperature data in each pixel?
Please take a look at what I posted. Please feel free to comment and/or ask any questions.
