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Belgium


Activity Feed

Dries Raymaekers commented on Evan Palmer's blog post High School Student Works On Drone That Assists Farmers
"Hi Evan,
Nice to see you are building your own mapping drone and share your experience. I have been flying the X8 for mapping since 2012 and must say it is an excellent plane for stable and long flights. Some tips which might help you:
* Best to…"
Jun 14, 2016
Dries Raymaekers replied to Dries Raymaekers's discussion Navigation problem X8-ArduCopter V3.2.1
"I checked again and all motor mounts look ok... but after such a long transport maybe indeed something is off.
Dataflash logs in attach.
thanks again! 2016-03-31 15-17-42.bin2016-03-31 17-17-47.bin"
Apr 1, 2016
Dries Raymaekers posted a discussion
Hi Guys,I am strungling with my X8 frame (3DR X8+ with ArduCopter V3.2.1 and pre-installed param). It was fine flying in Belgium, but after transportation to Peru I observe some issues during navigation (auto/RTL). I have redone the compass…
Mar 31, 2016
Dries Raymaekers commented on John C.'s blog post Sequoia In The Wild!
"oh yes ..one other question. Can you also share the output of the irradiance sensor? Or do you need PIX4D software to open it? One small advice on that sensor: try to put it as high as possible on your drone. You don't want to have any shade coming…"
Mar 1, 2016
Dries Raymaekers commented on John C.'s blog post Sequoia In The Wild!
"Thanks for this review! I really want to get my hands on one of these sensors to try them out! I have been looking at the images you provided and seems that the images of the individual bands are clear shots without too much blur which is a good…"
Mar 1, 2016
Dries Raymaekers replied to Tersus GNSS's discussion L1/L2 RTK trial user wanted
"Interested for photogrammetry applications!
info@usense.be"
Dec 28, 2015
Dries Raymaekers commented on Chris Anderson's blog post 3DR Aero and X8 now $350 off
"X8+ is really great value/money! Here you see an example of last August where I integrated a thermal camera to map diseases in oil palm trees. Will these product be discontinued soon? And more important, will 3DR offer a similar octocopter in the…"
Dec 13, 2015
Dries Raymaekers replied to Ned Horning's discussion The right tool for the job in Agricultural UAVs
"Great discussion! The article I was referring to indeed is aimed to calibrate expensive airborne and satellite imagery but general idea (measurement of the reflected light normalized for changing illumination and viewing conditions) also applies to…"
Sep 29, 2015
Dries Raymaekers replied to Ned Horning's discussion The right tool for the job in Agricultural UAVs
"Yes .. I agree. I also would at least take 5-6 pixels on your target as margin. Some nice literature on this type of vicarious airborne image calibration: http://www.mdpi.com/2072-4292/7/5/6196
I guess this one would be large enough for any job ;)…"
Sep 27, 2015
Dries Raymaekers replied to Ned Horning's discussion The right tool for the job in Agricultural UAVs
"Ned, Great write-up on difficult theme. I have some additional points on calibration:
John Sulik, you mention a few lines back “Teflon works well up to 1000nm if it is elevated far enough above ground to allow light underneath it to diffuse. I just…"
Sep 26, 2015
Dries Raymaekers commented on Dries Raymaekers's blog post UAV mapping in Ethiopia - Looking for Malaria Hotspots
"I will do both.. thanks for the suggestion! "
Feb 14, 2015
Dries Raymaekers posted a blog post
During our latest mission, we went to Ethiopia to map malaria hotspots. The idea is to look for small water bodies which in the dry season are a source for mosquitos and their larvae. From these hotspots, the mosquitos spread in the rainy season all…
Feb 10, 2015
Dries Raymaekers commented on Chris Anderson's blog post Using APM to help indigenous people monitor the rainforest in Guyana
"Great work!! Flying a drone is one thing .. teaching people how to build/fly/ repair a drone and effectivly use the technology for their own purpose far more effective..keep up the good work!"
Jan 3, 2015
Dries Raymaekers commented on Dries Raymaekers's blog post Workshop on UAV-mapping technology in Lima, Peru
"I have read the article about DroneAdventures in Peru, but we did not yet connect. We did pass some of the "barrios" which they operated in. Very poor people and living conditions, so great work they are doing to make a kadaster of these areas. I'll…"
Mar 26, 2014
Dries Raymaekers commented on Dries Raymaekers's blog post Workshop on UAV-mapping technology in Lima, Peru
"Thanks! The 3-day demonstration flights just ended, all participants were very happy with the results and eager to start flying themselves. Some pictures of the demo below.
@Randy. Nice initiative and the level of the T3 competition was very high…"
Mar 25, 2014
Dries Raymaekers posted a blog post
In the framework of the VlIR-UOS-North-South-South initiative aimed at capacity building for developing countries, Latin-American and African Universities participate in a 7 day workshop on UAV-technology, currently being held in Lima, Peru. In this…
Mar 23, 2014
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