"Aggressive Maneuvers for Autonomous Quadrotor Flight"
Phil Pilgrim (PhiPi)
Posts: 23,514
'Came across this YouTube link;
www.youtube.com/watch?v=MvRTALJp8DM&feature=player_embedded
'Pretty trick stuff!
-Phil
www.youtube.com/watch?v=MvRTALJp8DM&feature=player_embedded
'Pretty trick stuff!
-Phil
Comments
John Abshier
·http://forums.parallax.com/showthread.php?p=890157
I had the same response as John.
Jim
P.S. Movements are very fluid and deliberate. I'll give them that much.
The docking·was the most·interesting. I guess the dock is just a magnet to a metal plate on the copters bottom. It could be an electo-magnet for ease of docking and un-docking. The copter could awaken on the undocking.·Although a perment magnet would have it's advantages. An·electro-magnet could be the base of an inductive charge system to·a coil in the·bottom of the copter (a plate/core with a coil, to a diode bridge· to feed the charging circuit).·And I guess the copter could also undock by·applying current to·the coil in the·bottom of the quad copter to oppose the magnetic field, allowing it to weaken enough to drop off. Though I would not expect the inductive charging to be very efficient (a weak transformer with an airgap).
From a practical application you could have one/more perched oustside your house (under the eves) or building on an inductive docking charge point awaiting instructions. Could be a useful adaption for personal/building security, ie. your·home security system·wants to look at the number plate of the car parked suspiciously outside your house, it sends the quad copter. Likewise, should your home security system detect an event that is not picked up on camera, likewise, out would go the quad copter for a patrol of the area, sending back useful video (IR ;-) and return to it's dock to keep it's charge. Could be very useful to inspect the roof of the house (a good task for an autonomous device that could also factor wind and air movement) after a storm/noise from the roof. For the small power capacity and short run time then this would be a good application for the quad copters. Though the limitation would be lack of operation during gusty winds. I guess the security system would need to be tied to the weather station on the roof. Though this opens to a vulnerability in attack, the attackers quad copter could spin the anonometer to indicate gusty wind to indicate a high risk for flying and thus not release the copter. Then again, they could just wait for a windy day.....
Previously I'd imagined the other practical application would be for a soldier who needed to see what was on the other side of a wall/building/etc. They·would have one in a special quick release pouch to launch along the ground and then up so not to give away their position, before then doin recon on the target. But the small power capacity, short run time and long charge time would have made them less practical (probably still useful). I wonder how windy it is in Afganistan?
I've bought some stuff for building one, just haven't had the time to give it justice.
Jim
http://en.wikipedia.org/wiki/Sikorsky_Cypher
I happen to like this on because I used to live 10 miles from Sikorsky and I like H. G. Wells.
Jim
That netting is standard fare at indoor model airplane meets for high-powered planes. There are are expert flyers who are ALMOST as precise as this computer control system with a big fast-moving airplane that doesn't have the luxury of stopping & hovering !
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·"If you build it, they will come."