Implementing this somehow will improve safety. There are so many
XCSoar/FLARM users now, that someone will avoid midair because of improved
situation awareness if this is correctly implemented.
I agree with having indication, if someone is flying same direction with
you, near to you in blind spot, and he keeps disappearing from your FLARM.
It is potentially dangerous situation. If this other ship has only LED
based FLARM display, and there are several gliders nearby, he will not be
able to notice the situation at all ! !
FLARM is designed to alert you of other gliders in front of you, closing.
If you fly high speed under cloud-street, FLARM is perfect (we do not have
mountains here, so no experience of that).
2012/9/14 BRIAN CASE <brianfc...@msn.com>
> Sorry I haven't been fully following this discussion so ignore if it
> doesn't apply.
>
>
> But if you don't fully like the idea below, how about changing the color
> of the of the target to indicate that it is an old target. I.E> Green if
> updated in the past two seconds. Yellow if more than 2.
>
> Brian
>
>
> ------------------------------
> Date: Thu, 13 Sep 2012 16:32:01 -0700
> From: ryan...@yahoo.com
> To: tobias.bien...@gmx.de; soartro...@gmail.com
> CC: xcsoar-user@lists.sourceforge.net
>
> Subject: Re: [Xcsoar-user] Flarm radar
>
> Mystery solved. Marc from Butterfly just responded to my question on RAS:
>
> > 8 - Does butterfly implement some kind of filtering which prevents
> targets from disappearing momentarily due to loss of signal? This seem the
> case when comparing to the flarm radar in XCSoar for example.
> Yes, we keep a target active for some seconds ( eight seconds) after
> losing reception (ADS-B and FLARM only).
>
> I recommend doing the exact same thing, to be consistent. I know some
> pilots disagree, but the only reason to disagree is if you plan to use
> XCSoar as your main collision alert system which is not recommended. The
> implementation in XCSoar is mostly for situational awareness, and as such,
> implementing the eight second delay will be beneficial. Also I trust the
> Powerflarm and butterfly folks that they did their analysis to come up with
> this filtering.
>
> Ramy
>
> ___________ Xcsoar-user mailing list Xcsoar-user@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/xcsoar-user
>
------------------------------------------------------------------------------
Got visibility?
Most devs has no idea what their production app looks like.
Find out how fast your code is with AppDynamics Lite.
http://ad.doubleclick.net/clk;262219671;13503038;y?
http://info.appdynamics.com/FreeJavaPerformanceDownload.html
_______________________________________________
Xcsoar-user mailing list
Xcsoar-user@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/xcsoar-user
