World Championship skier almost hit by crashing drone

Super scary. Those big drones should not be operated around people, even in a professional sports context.

More details here

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Comment by Bill Bonney on December 24, 2015 at 2:08pm

@Daruis, I have no idea what you are saying other than cut and pasting text into comments. What's your point?

The question is, why did the operator engage the nuclear option, and why wasn't the normal failsafes engaged, i.e. hover on signal loss, return to home etc...?

Comment by Darius Jack on December 24, 2015 at 3:21pm

@Bill,

we can spend days, weeks , months on speculations.

Pls read my C&P

WooKong-M Waypopint Precautions 

to get answer to your question about failsafe algorithm with DJI.

It looks like the Italian Government has violated drone fly basic safety standards,

having failed to adopt EU regulation on drone fly safety rules in Europe to ban drone fly over the crowd.

My last C&P since necessary and required to clear the facts

from

http://edition.cnn.com/2015/12/23/sport/marcel-hirscher-drone-crash...

"

...

 FIS statement read.

..

"Even if -- unlike in Austria, Switzerland and other countries -- drones are authorized to fly over a crowd during events in Italy, FIS and the host broadcaster will work together with all the involved parties to see what occurred during the crash and ensure that this will not happen again."

"

Comment by Rick Boden on December 24, 2015 at 4:11pm

"interference on the operating frequency" is the "dog ate my homework" for all drone pilots everywhere.  Remember that.  :-)

Comment by John on December 24, 2015 at 5:55pm

The one thing that you all seem to miss out on is the high radio frequency use at these sort of events. The background RF noise level will be very high and they will be using frequencies from VHF to SHF.  This will include licensed frequencies and license exempt equipment. There might also be the mobile network operators deploying COW (Cell on Wheels) to enhance coverage and capacity. There will be a good chance that a Wi-Fi network for 2.4Ghz and 5Ghz would have been installed and that will not include all the other users on 2.4/5Ghz who might setup their own equipment.

Now there will be others who use 2.4Ghz for spreadspectrum communications, this could be cctv, sports presentation, belt packs, all sorts of yucky stuff thrown in a small area of radio spectrum.

Spectrum co-ordination is a MUST at these large events and this includes having everyone register every bit of radio equipment (licensed or license exempt it does not matter it transmit it gets registered with the exception of mobile phone handsets and devices access WAP).

You will be amazed at the amount of frequencies that will be getting used. They could be in their 100s very easily. Also some of the devices might be pretty high powered and if they are not "Tagged & Tested" they could be operating outwith the license agreement and therefore stand more chance of blocking/interfering with other radio systems.

I would like to learn more about the log and what can be shown in them in particular relation to loss of radio communications.

One last thing, don't believe the HYPE about spread spectrum and frequency hopping to avoid interference, if there is NO clear frequency and everyone is using kit doing the same thing on the same band then it turns into one big mess.

Regards

John

Comment by Martin Rüedi on December 25, 2015 at 11:38pm

Are we sure that depleted battery in the cold can be ruled out? Hirscher was the second last skier that mattered. So even if the remaning battery would have become marginal (even more accelerated due to temperature), there could have been quite some psychological pressure on the pilot to stay up there and film the topshots....

Comment by Darius Jack on December 26, 2015 at 5:43am

Technical specification of the DFC-X1 camera drone crashed in Italy

http://www.dfc.space/about/#bio

Imaginery by Europort

https://translate.google.com/translate?hl=it&sl=it&tl=en&am...

Comment by Darius Jack on December 26, 2015 at 6:31am
Comment by Darius Jack on December 26, 2015 at 1:23pm

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