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 Jun 10 0 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 commented on Sheila Harding's blog post 6 Drones You Must Know About as A Professional
"Hi, we have LM Indago and MD4 for sale - we need to clear our lab for new birds ). Price will be excellent..."
Oct 13
Alexey Dobrovolskiy replied to Colin Girvan's discussion UgCs for DJI and A2 Flight Controller in the group UgCS
"I'm sorry, no. For A2 we will support connection only through DJI DataLink."
Oct 12
Alexey Dobrovolskiy replied to Colin Girvan's discussion Altitude too high. in the group UgCS
"No, UgCS doesn't override max altitude/radius settings in DJI GO. Parameters in vehicle profile and mission used to check route only."
Oct 10
Alexey Dobrovolskiy replied to Michael Gray's discussion Error Altitude too high in the group UgCS
"Copy of my comment from another thread. ------------------------------------- Hi Colin,most likely you exceeding limit set in DJI GO/DJI GO4 app. Please check limit here.Here can be confusing situation. Suppose you have 50m limit set in DJI GO app.…"
Oct 10
Alexey Dobrovolskiy replied to Colin Girvan's discussion Altitude too high. in the group UgCS
"Hi Colin,most likely you exceeding limit set in DJI GO/DJI GO4 app. Please check limit here.Here can be confusing situation. Suppose you have 50m limit set in DJI GO app. And all waypoints in the route will have 45m AGL for example. But if your…"
Oct 10
Alexey Dobrovolskiy replied to Colin Girvan's discussion UgCs for DJI and A2 Flight Controller in the group UgCS
"Hi Colin, this setup isn't supported by UgCS. A2 should be connected to laptop using DJI DataLink."
Oct 7
Alexey Dobrovolskiy replied to Eben N. Broadbent's discussion Save flight plan and load into multiple flights? in the group UgCS
"Hi, just returned from Intergeo expo in Berlin. Here we had lot of conversations with LIDAR manufacturers and UgCS + LIDAR users. We found that lot of them use "perimiter" to warm up the system. Also perimeter allows to create eight-like…"
Oct 2
Alexey Dobrovolskiy replied to Giovanni - iGV's discussion Downloading Missions from Flight Cobtroller in the group UgCS
"Hi, UgCS can't download mission from autopilot.I can recommend to use Mission Planner to check uploaded mission.Please note that MP and UgCS can't work on same computer simultaneously - they will fight for USB port. So before MP start…"
Oct 2
Alexey Dobrovolskiy replied to Werbe Fuzzy's discussion UgCS with Surface 3 LTE and Mavic Pro in the group UgCS
"It's great! In my practice I never had to edit config files to see video - I use Samsung A5."
Oct 2
Alexey Dobrovolskiy replied to Stefan's discussion DJI Ace One waypoint wrong telemetry and error uploading mission in the group UgCS
"Hi Stefan, please collect all logs and send them to support@ugcs.com. We will try to help. Logs are located in C:\Users\ [USER NAME]\AppData\Local\UGCS\logs - if you use Windows laptop. Problem is that we don't have DJI Ace autopilot in…"
Sep 28
Alexey Dobrovolskiy replied to Werbe Fuzzy's discussion UgCS with Surface 3 LTE and Mavic Pro in the group UgCS
"Hi, I see in our support system that our engineer has asked you for logs. Pretty standard question :).  Please send requested files to them."
Sep 26
Alexey Dobrovolskiy commented on Kristaps Brass's blog post Precision of Vertical Maneuvers – It's All About Safety
""Sort of sounds like intentional sand-bagging." - Rob, could you explain what do you mean? We used same route for 3 different copters. Without any wait's in waypoints. For each copter we tested how are they behave with all supported…"
Sep 26
Alexey Dobrovolskiy commented on Kristaps Brass's blog post Precision of Vertical Maneuvers – It's All About Safety
"Hi Rob, of course we can get almost ideal route following using this trick, but it will be far from real life. And not interesting )"
Sep 22
Alexey Dobrovolskiy commented on Kristaps Brass's blog post Precision of Vertical Maneuvers – It's All About Safety
"Marco, if you have fine-tuned ArduCopter vehicle why not to repeat our test? It will take just 5 minutes... I can send you test routes (in UgCS or KML format). We will add your results to article. Also it will be interesting to see difference…"
Sep 22
Alexey Dobrovolskiy commented on Kristaps Brass's blog post Precision of Vertical Maneuvers – It's All About Safety
"Pablo, you are right! Very big advantage of ArduPilot/PX4 that you can decide when and where to fly - according local rules, acquired permissions etc. We are receiving lot of urgent requests from professional operators - we are on the field, my DJI…"
Sep 22
Alexey Dobrovolskiy commented on Kristaps Brass's blog post Precision of Vertical Maneuvers – It's All About Safety
"Hi Chris, Marco - we used almost default parameters. Purpose of this article was not to make competition between drones or autopilots. We wanted to point to important issue for flights safety. BTW, how many ardupilot users will spend lot of time to…"
Sep 22

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 (6 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

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