HD Video Downlink

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Noctaro
Posts: 280
Joined: Thu Sep 08, 2011 11:15 am
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HD Video Downlink

Post by Noctaro »

Hi,
sounds good to me :) -> http://www.rchelimag.com/dji-lightbridge/
Does anybody know alternatives to this DJI System?
I like the idea of having digital HD Video livestream and RC controll in one. :o

Greetz Noc

scrat
Posts: 925
Joined: Mon Oct 15, 2012 9:47 am
Location: Slovenia

Re: HD Video Downlink

Post by scrat »

Noctaro wrote:Hi,
sounds good to me :) -> http://www.rchelimag.com/dji-lightbridge/
Does anybody know alternatives to this DJI System?
I like the idea of having digital HD Video livestream and RC controll in one. :o

Greetz Noc


I think DJI is the first one.

crashlander
Posts: 506
Joined: Thu May 05, 2011 8:13 am
Location: Slovenia

Re: HD Video Downlink

Post by crashlander »

Just my 2c
That one is older but range and price are awful:
http://www.globe-flight.de/Globe-Flight ... ansmission
While ago TC explained why those will not be usable for proximity PFV, but if you can live with eg. 1s delay than it might be O.K.

Andrej

Noctaro
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Re: HD Video Downlink

Post by Noctaro »

Hey,
thanks for the info, did not know there was a lag around one secound. Thats mad. Hope that realtime HD downlink will be possible in near future. Think this would make flights even more enjoyable :)
Greetz Noc

crashlander
Posts: 506
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Location: Slovenia

Re: HD Video Downlink

Post by crashlander »

Thread about theoretical limitations of HD video streaming....
viewtopic.php?f=7&t=2903&hilit=video
The solution that I posted link uses multiple receivers and transmitters in parallel and no compression but it has usable distance of maybe 100m and when dropout occurs you have to come very close to reacquire video and it takes 10+ seconds to do so, but it has almost no latency.

Regards
Andrej

copterrichie
Posts: 2261
Joined: Sat Feb 19, 2011 8:30 pm

Re: HD Video Downlink

Post by copterrichie »

I am developing a HD video downlink using a Raspberry PI and Camera. The Latency is very tolerable however, I have yet to flight test the system.


Gimbal
Posts: 146
Joined: Tue Jul 24, 2012 7:14 pm
Location: Sweden

Re: HD Video Downlink

Post by Gimbal »

I guess you'r using h264 compression so what's the range :?:

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treym
Posts: 258
Joined: Sat Jul 21, 2012 12:28 am

Re: HD Video Downlink

Post by treym »

copterrichie wrote:The Latency is very tolerable however


take a picture ;)


here is 0.5s latency .. opencv delay

Image

copterrichie
Posts: 2261
Joined: Sat Feb 19, 2011 8:30 pm

Re: HD Video Downlink

Post by copterrichie »

treym wrote:
copterrichie wrote:The Latency is very tolerable however


take a picture ;)


here is 0.5s latency .. opencv delay



I have pictures of the actually latency but stopped sharing, :mrgreen:

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