RE: [Paparazzi-devel] distance measurement for landing. (box oflights)

[Elden Crom]

Yea I had considered this, but
1) this would 'require' the ground station full fledged computer and
2) a good bit of processing and communications going down would be really bad and
3) of course comms latancies.

I was hoping to apply KISS. (and cheap)

another similar thought would be to use a WiiMote and Blue tooth at the last few seconds..
http://johnnylee.net/projects/wii/

But yea the ground station doing video processing is the backup plan.....


-----Original Message-----
From: address@hidden [mailto:address@hidden]
Sent: Fri 11/13/2009 1:49 AM
To: address@hidden
Subject: RE: [Paparazzi-devel] distance measurement for landing. (box oflights)

On Thu, 12 Nov 2009 13:27:38 -0700, "Elden Crom"
<address@hidden>
wrote:
> (For a better explaination
>
http://everything2.com/title/How+to+land+a+jet+plane+on+an+aircraft+carrier
>  , http://answers.yahoo.com/question/index?qid=20071105145150AAYcwq8)
>
> Therory of Operation (only describing up and down for now,left and right
> will be similar):
> The box of lights shines 3 beams of light. The beams diverge at
~3degrees.
> The too high light is red.
> The too low light is blue.
> The just right light is green.
> X RRRRRRRR
> X      RRRRRRRR
> X AC       RRRRRRRR
> X GGGGGG       RRRRRRRR
> X       GGGGGG     RRRRRRRR
> X             GGGGGG   RRRRRRRR
> X BBBBBBBBB         GGGGGG RRRRRRRR
> X          BBBBBBBBB     GGGGGG RRRR[----Box---]
> X                  BBBBBBBBB  GGGGGG[----of----]
> X                          BBBBBBBBB[--Lights--]



As we have computers and communication anyway...what about
a ground-station detecting the aircraft visually (against the
sky the aircraft is much easier to make out that a light on
the ground) and relay a correction-factor for it's assumed
altitude to the autopilot?

Marcus