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 Post subject: Re: Max wind a quadcopter can be flown in? Yes to shoot ride
PostPosted: Sun Jun 30, 2013 11:47 am 
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alexrider wrote:
Caesar, you're from Brazil? These shots are taken in Paracuru.


Yeah, nice footage of Quebramar.
Down there you see JB! :party:

Cheers
Caesar 8)


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 Post subject: Re: Max wind a quadcopter can be flown in? Yes to shoot ride
PostPosted: Sun Jun 30, 2013 1:57 pm 
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jimovo wrote:
I custom built a quad specifically for the purpose of filming kitesurfing.
... Once you have the bug, you'll certainly want to be upgrading....

Thanks for your informed feedback, jimovo. You should not have revealed your knowledge: I am going to harass you for more from now on ;-).
I'll get back soon enough with more questions, in particular with your own setup, which looks what I am looking for.
Yes, I already want to upgrade, before even I did anything with the Phantom. :jump:
Cheers,
Alex

Here is a link to a thread I started on this topic in phantompilots.com:

http://www.phantompilots.com/viewtopic.php?f=4&t=1236


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 Post subject: Re: Max wind a quadcopter can be flown in? Yes, to shoot rid
PostPosted: Sun Jun 30, 2013 9:40 pm 
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Awesome thread!!


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 Post subject: Re: Max wind a quadcopter can be flown in? Yes to shoot ride
PostPosted: Sun Jun 30, 2013 11:47 pm 
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jimovo wrote:
I custom built a quad specifically for the purpose of filming kitesurfing. When it comes to stability in high winds, size is your friend....

I warned you, Jivomo; here are the first couple (+) of questions,
- have you build your (great) quadcopter from scratch or used an existing base?
- does it share the same GPS related features with the Phantom, It apparently does stay put where you pin it (hands off the throttle). Does it also self-land at home-base when contact is lost?
- what sensors have you got? baro/alti, magnetic compass, gps,
- Is the controller Nazam?
- what's the likely staying power with Gopro instead of your heavy Panasonic and without FPV? With no wind, and in say, 15 knots.
- your tracking a target idea is brilliant; how sophisticated will it be? I image you could program it to have a wireless remote to position the drone relative to the rider it's tracking. Higher/lower/in front, etc...
- is there a feature that enables the drone to self land when the batteries are below a certain level (I imagine the case nobody's around to hold the sticks when you're out for an ego trip, and you're not back in time to regain control).
- FPV goggles best available resolution?
- does it disassemble easily for travels?
- will I be arrested at customs suspected of planning to spy the country I am gonna visit? ;-)
I'm refraining to ask more questions for the time being.
Thanks,
Alex


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 Post subject: Re: Max wind a quadcopter can be flown in? Yes, to shoot rid
PostPosted: Mon Jul 01, 2013 12:06 am 
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Can you attach a wind meter to it so that it sticks up above the Rotor turbulence and Hover the copter to check wind speed where the kites are so we can put and end to this 4 Knut Bullwash??

:desperado: :desperado: :happybirthday: :happybirthday:


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 Post subject: Re: Max wind a quadcopter can be flown in? Yes, to shoot rid
PostPosted: Mon Jul 01, 2013 12:40 am 
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14ToeSide wrote:
Can you attach a wind meter to it so that it sticks up above the Rotor turbulence and Hover the copter to check wind speed where the kites are so we can put and end to this 4 Knut Bullwash??

:desperado: :desperado: :happybirthday: :happybirthday:


You're in here to revive "the" :dumbo: competition, aren't you, Toeside? :jump: :jump: :jump:

Try a bit harder and you'll be back on the podium. :winner2:


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 Post subject: Re: Max wind a quadcopter can be flown in? Yes, to shoot rid
PostPosted: Mon Jul 01, 2013 2:04 am 
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tautologies wrote:
Awesome thread!!


You ain't see nothing yet mate!

This is my favorite. No heli, just a regular plane which can be purchased pretty cheaply (and Joe Satriani's brilliant music in the background):




And here one more:



Cheers
Caesar 8)


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 Post subject: Re: Max wind a quadcopter can be flown in? Yes, to shoot rid
PostPosted: Mon Jul 01, 2013 2:20 am 
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ardupilot has a built in tracking mode:

diydrones.com

I am running it on a jet drive kayak for hydrographic survey and the "follow me" tracking mode works great for following the mothership home after a day of survey...much easier than driving in rc mode

Here is a good video of a quadcopter tracking:

http://vimeo.com/25288834

but maybe just putting your go-pro on your kite is easier! and try other angles from the multicopter


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 Post subject: Re: Max wind a quadcopter can be flown in? Yes, to shoot rid
PostPosted: Mon Jul 01, 2013 7:25 am 
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This is me shooting our home spot from a FPV Sywalker. I have a quad too but I find that for shooting in wind, the best solution is a good plane. Your flight time is around 1 hour and if the wind is good, you can pretty much glide all the time and depending on your skills and wind direction, you can hover without even moving above ground.


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 Post subject: Re: Max wind a quadcopter can be flown in? Yes to shoot ride
PostPosted: Mon Jul 01, 2013 7:42 am 
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alexrider wrote:
I warned you, Jivomo; here are the first couple (+) of questions

Hi Alex,
'Jivomo' doesn't quite have the right ring to it....
I am happy to answer your questions:
- I built this unit from scratch using 25mm carbon fibre tube and 2mm carbon fibre plate sourced from a supplier on Ebay. It is my own design
-Yes I presume that it shares common GPS features with the Phantom. It will stick in one place (loiter), it will hold altitude (alt_hold) and it will follow a pre-programmed course (auto). It also has a 'simple' mode where you can control it always relative to your position regardless of the orientation of the copter (i.e pushing the stick away from you always moves the copter away, stick right always moves the copter to your right - as you face it). There is also a return to landing (RTL) mode that will automatically bring it back to the point it took off from. Various options can be set in the event something fails, including RTL on loss of radio contact.
- The sensors onboard are baro, 3-axis mag, 3-axis accel, 3-axis gyro, GPS
- The controller is the APM2.5 (Ardupilot Mega) running the Arducopter 3.0 software. The hardware can be had for as little as $140USD including GPS and two way telemetry radios. The software is open source and community driven. There is a great group of us over at diydrones.com.
- I'm not sure quite what you mean by 'staying power' but with less weight you will be less stable. In no/light wind, less weight will be an advantage in that you will get more air time. Without FPV it can be next to impossible to orient the copter at any distance. Before I got FPV there was many a time when I thought I had the target in frame only to find out I was 90 or even 180 degrees out! As the copter is pretty much symmetrical about 2 axis, it can be very hard to determine just which way it is facing. FPV fixes this immediately and produces a whole lot more usable video.
- Arducopter already has some basic 'Follow Me' and 'Region of Interest' functionality. Follow me will have the copter follow you around at a fixed distance however this is implemented by actively controlling the copter with commands being sent from a mobile ground station connected by a radio link (can be run on an android phone). Region of interest controls the gimbal mounted camera to always point to a pre-specified location during an auto waypoint mission. My plan is to have the camera automatically track a moving target while I fly the copter around. This will be driven by the software on the copter itself and will not require a ground station. As I only have a 2-axis gimbal, the software will control the yaw of the copter to always face the target along with the pitch of the camera. The target will be a GPS combined with a radio that transmits its location 5 times per second to the copter. I have the GPS, radio (~1km range) and battery which are relatively cheap at ~$50 and I am coming to grips with the Arducopter code. It all seems pretty straight forward and I just need to put some time into coding/testing.
- There is a fail safe feature to auto-land when the battery is used below a certain level (based on current usage) or voltage level.
- I use the FatShark Attitude Goggles/250mW transmitter. These are standard definition - high def gear is available however it is very expensive.
- My unit does not disassemble easily and is about as big as you can get while still fitting it (carefully!) in a car. Removing arms is not a big deal, each retained with 4 bolts, however care needs to be taken to ensure that everything is aligned properly when re-assembling.
- I have not travelled internationally with my quad but I would not anticipate any probems. Most airlines place some restrictions on the transport of lipo batteries.

Feel free to ask more questions!


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