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Old 06-09-2011, 08:25 PM #1
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Default suggest a mechanism

a friend and i plan to design and fabricate a sort of home radar/tracking system.the objective goes like this.there is a dark room and we are flying a remote controlled helicopter(a small one).it is desired that a radar/tracking system placed on the floor should track it,follow it and hit it with ping pong balls.now how to go about.we need to keeep this whole thing as simple as it could be.
we had an idea.make a hexagonal mirror drum.which rotates both in the vertical plane and the horizontal plane.360 degrees in the vertical and about 30-40 in the horizontal.rotation achieved by servo motors/stepper etc...we will position a laser beam and focus it on this rotating drum.this will scatter the laser rays in the whole room.any random ray striking the helicopter will illuminate it and a camera fitted on the rotating drum will lock the target,follow it.the rotation should stop now.and the feedback signal to a micro controller will do the analysis and fire the balls.gear trains needed..calculation of gear ratios needed.etc.what do u say?how credibile is dis?.
the objective is not to strictly do this in a room.it is aimed to b done in an open sky..think of this system placed on the ground..and above it(1 km)..in a balcony we fly a toy helicopter in any direction..this rotating head makes a three dimensional or spatial region saturated with laser beams(all reflected)...when this copter enters this area...the beam or beamS strike...a spot occcurs..and a camera on the ground captures and locks this location/co ordinate and and now follows the copter where ever it goes.

P.: i have dropped the idea of this rotating head and simply scrapped the idea of employing reflection...some people have sugested using galvos instead of stepper.share ur thoughts on this...

y not use a cam and a follower with a box containing a laser pen..this box lying in contact with the cam surface.the nature of the mechanism being oscillating cam follower...

this is all for detection purpose. there will be another system to identify the spot when the laser hits the helicopter.locks the co ordinates of the spot,and fires a ping pong at it...


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Old 06-09-2011, 08:26 PM #2
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Default Re: suggest a mechanism

Asking once is enough.

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Old 06-09-2011, 08:49 PM #3
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Default Re: suggest a mechanism

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Asking once is enough.

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Should such a masterfully crafted post not be shared with the ENTIRE forum? Surely the fellow put extreme care into composing that easy to read gem for us?

ne 1?
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Old 06-09-2011, 08:49 PM #4
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Default Re: suggest a mechanism

Yeah, 4 threads with the same questions?
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Old 06-09-2011, 09:52 PM #5
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Default Re: suggest a mechanism

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Originally Posted by v33 View Post
Should such a masterfully crafted post not be shared with the ENTIRE forum? Surely the fellow put extreme care into composing that easy to read gem for us?

ne 1?
Actually you're right. I'm sorry.

I'm going to take this a step further and print his message out and post it around town!

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Old 06-09-2011, 10:33 PM #6
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Default Re: suggest a mechanism

can we please get down to some meaningful discussion?
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Old 06-09-2011, 11:03 PM #7
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Default Re: suggest a mechanism

Quote:
Originally Posted by lapata View Post
can we please get down to some meaningful discussion?
You first.

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Old 06-10-2011, 01:03 AM #8
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Default Re: suggest a mechanism

Quote:
Originally Posted by lapata View Post
can we please get down to some meaningful discussion?
Can you please stop SPAMMING the Forum with 4 of the same
Threads...
Spamming the Forum is frowned upon and can get you a terrible
reputation awfully quick....


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