Alexey Dobrovolskiy
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  • Riga
  • Latvia
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Alexey Dobrovolskiy's Groups

Alexey Dobrovolskiy's Discussions

WiFi 5Ghz telemetry module for Pixhawk

Started this discussion. Last reply by Alexey Dobrovolskiy Apr 22. 8 Replies

Hi,Anybody knows WiFi modules similar to very popular esp-07 or XBee WiFi, but for 5GHz? I mean modules compatible with Pixhawk, ie with UART port and necessary software support.Continue

Tags: 5Ghz, WiFi

Droneshare support

Started this discussion. Last reply by Alexey Dobrovolskiy Sep 14, 2015. 1 Reply

Hi,how to reach Droneshare support? support@droneshare.com it seems not working.My problem:I have uploaded my mission to Droneshare…Continue

UAV regulations in international waters

Started Aug 31, 2015 0 Replies

Hi,Anybody has understanding how regulated drones usage in international waters (high seas)?Continue

 

Alexey Dobrovolskiy's Page

Latest Activity

Alexey Dobrovolskiy replied to Thomas Stanley-Jones's discussion Areascan with Basepoint in the group UgCS
"Hi, I don't get. Could you post some sketch?"
17 hours ago
Alexey Dobrovolskiy replied to Thomas Stanley-Jones's discussion Multiple Waypoint Selection in the group UgCS
"on Mac - CMD + mouse click"
17 hours ago
Alexey Dobrovolskiy commented on Kristaps Brass's blog post How we spent 8 days on an ice cap in Greenland and found a lost WWII P-38 fighter
"We did calibration of compasses in Kulusuk - 120 km from Lost Squadron site. When we did first test flight on site, we didn't see any anomalies."
Monday
Alexey Dobrovolskiy replied to carlo pogs's discussion How to save current dorne position, return to home, change the batt then resume the mission to the last save position? in the group UgCS
"Hi, basically everything the same - you need to change first point for new flight manually. But starting from UgCS 2.12 (as I remember) you can convert route generated by AreaScan or Photogrammetry tool to separate waypoints and modify it as you…"
Sep 14
Alexey Dobrovolskiy replied to Craig's discussion 210 RTK no gimbal control in the group UgCS
"Hi, as I remember for DJI's you need to enter positive values here. 0 = horizon, 90 - nadir (straight down)."
Sep 6
Alexey Dobrovolskiy replied to Luke's discussion Matching Elevation Sources in the group UgCS
"Hi Luke, we received your email, our engineers are still working on it."
Aug 24
Alexey Dobrovolskiy replied to Alex's discussion Feature request. Flight timer, Reverse waypoints, Load KML without internet, Turn off KML on map in the group UgCS
"I asked my colleagues to register all not implemented as feature requests. "
Aug 10
Alexey Dobrovolskiy replied to Alex's discussion Feature request. Flight timer, Reverse waypoints, Load KML without internet, Turn off KML on map in the group UgCS
"Hi! 2. Reverse waypoints - I wan't to change order of waypoints in Photogrammetry tool to start from farest point and land near Takeoff point. So the last waypoint will be maximal near me and when quad have few % of battery it will…"
Aug 10
Alexey Dobrovolskiy replied to Eben N. Broadbent's discussion Plan mission including Digital Surface Model as 3D object in the group UgCS
"Hi Eben,  My colleagues were able to generate Collada models of buildings using Agisoft Photoscan couple of years ago - may be it will work in your case too."
Aug 2
Alexey Dobrovolskiy replied to DENY BAYONA's discussion Route Fail Waypoint altitude provided is invalid in the group UgCS
"Please send you mission and problem description to support@ugcs.com - our support team will try to help."
Aug 1
Alexey Dobrovolskiy replied to DENY BAYONA's discussion Route Fail Waypoint altitude provided is invalid in the group UgCS
"I love DJI for their documentation )))"
Aug 1
Alexey Dobrovolskiy replied to Eben N. Broadbent's discussion Plan mission including Digital Surface Model as 3D object in the group UgCS
"Hi Eben, there is no possibility to load geotiff as 3D object. Only as elevation data. What is source of your data? Point cloud as result of photogrammetry/laser scanning? Please check may be your software can export data as KMZ with built-in…"
Jul 30
Alexey Dobrovolskiy replied to Steve Cudmore's discussion Photogrametry Missing Pictures UGCS in the group UgCS
"OK, I have got your mission. All routes look good. I have checked segments length and speed - it seems that minimum time between shots will be 3s in most routes.  I didn't find any information of minimum triggering interval for your…"
Jul 29
Alexey Dobrovolskiy replied to Eben N. Broadbent's discussion Plan mission including Digital Surface Model as 3D object in the group UgCS
"Hi Eben, you can import DSM the same way as DEM - https://www.ugcs.com/files/manuals/how-to/UgCS_DEM_data_import_Instruction.pdf (if you use UgCS 2.13). If you use UgCS 3.0, you can import DEM data in Layers window."
Jul 29
Alexey Dobrovolskiy replied to Steve Cudmore's discussion Photogrametry Missing Pictures UGCS in the group UgCS
"Hi Steve, could you export your mission to XML file and post it here? I'll check what can be wrong."
Jul 26
Alexey Dobrovolskiy replied to Adrian Onsen's discussion Oblique photogrammetry possible? in the group UgCS
"Hi, we are going to implement Facade Scan too in one of nearest UgCS version. Currently you can plan such kind of missions manually using 3D interface of UgCS. You can import rough 3D model of your buildings into UgCS (from KMZ file) to simplify…"
Jun 16

Profile Information

Please tell us a bit about your UAV interest
I'm working for SPH Engineering - developer of UgCS - ground control software in Latvia.
Hometown:
Riga

Alexey Dobrovolskiy's Blog

Multiple drones and multiple operator support in U[g]CS

Posted on December 26, 2013 at 12:03am 2 Comments

 

Here is footage from software showing our software capability to simultaneously plan and execute mission with 3 different drones. Arducopter, Microdrone MD4-200 and Mikrokopter were used.

As we support at this moment Arducopter, Mikrocopter, ArDrone, Microdrone this demo can be interesting at least for professional users of…

Continue

Comment Wall (7 comments)

At 11:11am on April 17, 2015, Mike Governale said…

Thanks Alexey...  and good luck with your latvian farmers.

We carry a modified Canon PowerShot A810 (with standard lens) for the NDVI imagery.  We fly the same mission with another "unmodified" A810 to capture the 16 mp images.

We use Kolor's AutoPano Giga for stitching the images and process the NDVI with a plugin on ImageJ software.

For small crop acreage using our Y6 frames, we have found that 170feet altitude and 17mph speed provides the best stitching image resolutions desired while still leaving plenty of battery life for a safe return to home.  Our flight program triggers image captures by distance covered (and not triggered by way points) and we have flown this configuration in varying direction 20mph winds without loosing images because we exceeded the PowerShot A810 2.5 second refresh rate.

At some point, we hope to be able to afford using (and risking, if you know what I mean) modified cameras with a much larger sensor area (like a Sony Nex 6).  This would allow us to fly lower and/or faster with the same resolution.

We will stay with the cheaper cameras for now because satisfy requirements.  We are starting to test using our Skywalker's (1900 mm motorized gliders) for larger acreage surveys.  With these we have greater flight times, but the challenge is how to fly slow enough and low enough.

As you must know....   it is a continuous learning experience while trying to balance the costs, etc.

I hope this was somewhat helpful.

Mike G.

At 3:34pm on April 24, 2015, Alexey Dobrovolskiy said…

Thanks Mike,

could you tell also is GSD important for NDVI calculation? 

At 1:01pm on December 10, 2015, Ali said…

hi, there, I have seen a picture from power line inspection.

that was very clear and low noisy.

I want to know about your flight plan. the height, ortho imaging or oblique,

the distance from power line axis and the coverage of images(side coverage and along coverage). i tried that and have processed my data with pix4d but the result was not as the same as your pictures.

At 1:35pm on December 10, 2015, Alexey Dobrovolskiy said…

Hi,

as I remember it was ortho, altitude over line about 10 meters, distance from power line axis about 10 meters too.

And we make too much photos, processing time was about full day and night, but quality was perfect.

At 8:05am on December 11, 2015, Ali said…

thank you so much, by the way, can i ask you about your camera type.?

At 8:19am on December 11, 2015, Ali said…

sorry one more question.

i want to know about number of flight path in direction of power line.

i guess it must be two. with 10 meters distance from both sides of power line.

if its more please tell me.  

yours truly

Ali

At 4:22pm on April 25, 2018, John Brady said…

Alexey, I do not have any trust worthy data for Greenland. My translation for my data in Alaska is off, it should put me in Alaska, but is putting me in Greenland, Africa, or the middle of the Pacific depending on which projection of WGS84 I use. I am trying to figure out the proper projection that UgCS is using so my data from Alaska is where it belongs, in Alaska. Thanks!

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