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Parachute Trigger Implementation #2

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
UAVP flight controller equip with the parachute trigger port. However,
software or implementation documentation is not available.

Original issue reported on code.google.com by bdap...@gmail.com on 27 Oct 2008 at 4:41

GoogleCodeExporter commented 9 years ago 
I did a search on the UAVP forum and it looks like the code has never been
implemented for this. Here's the forum thread:

http://forum.uavp.ch/viewtopic.php?t=1326

The only reference to the word parachute is in lisl.c. It looks like they may 
have
started to make some of the modifications necessary to get this to work. I'll 
have to
look at the accelerometer datasheet to know for sure.

Do you have a trigger mechanism that could deploy a parachute if it receives a 
5 volt
charge? That was the main problem mentioned on the thread that still needed to 
be
solved. The code to fire the trigger can be added, but it won't of much use 
until we
have a trigger mechanism.

Any ideas are welcomed.

Original comment by robomage...@gmail.com on 28 Oct 2008 at 1:58

GoogleCodeExporter commented 9 years ago 
I'm thinking about using the the party poppers to deploy the chute. Just need to
found aways to light up the popper's powder with 5V/low current.

Original comment by bdap...@gmail.com on 28 Oct 2008 at 3:24

GoogleCodeExporter commented 9 years ago 
I was thinking of using a trigger fuse from the model rockets to light the 
parachute
charge.

Original comment by GaryStofer on 23 Dec 2008 at 6:15

GoogleCodeExporter commented 9 years ago 
I thought this was simple, just use a servo. So you have your chute packed into 
a
small tube. When the servo is fired it releases the spring. Then pops open, 
chute
fires out the top.

I actually have a chute and was going to be testing it this week!

Original comment by simonjar...@gmail.com on 26 Jan 2009 at 8:34

GoogleCodeExporter commented 9 years ago 
I believe the accelerometer initialisation is there providing  a switch closure 
on
K17.  The flight software does not initiate a parachute release as the 
assumption is
that it may have failed.

Original comment by gke3...@gmail.com on 15 Aug 2009 at 12:46