Computer Archery

[tel]

Originally Posted by joetapley

Not that it's exactly relevant but a computerised system is used on a commercial basis in the US. (for hunters in the off season).

The archer shoots arrows with blunt points at a projection screeen on which you have a video of some type of game. Sensors pick up the arrow flight and calculate where the arrow would have hit (or not)

http://www.bowhunting.net/evaluation/00-Technohunt.html

The arrows actually impact the screen?

[joetapley]

The video is projected onto a wall

[Kevinf2349]

The one I saw in Arizona was a screen that you shot blunts into. It was pretty neat but I didn't actually have the heart to have-a-go

[gunmender]

Sounds good, how did the trajectory get measured? the golf guys use a series of sensors i believe for the swing and speed

[jeduffey]

Have you thought about making a "string-bow"? No computer, no electricity, no arrow, no target - all form. My information says it was developed by Tim Strickland, a leading coach in the U.S.

[cliveanne]

Originally Posted by jeduffey

Have you thought about making a "string-bow"? No computer, no electricity, no arrow, no target - all form. My information says it was developed by Tim Strickland, a leading coach in the U.S.

Did a Google search for "string bow" & found this
http://en.wikipedia.org/wiki/Bow_(weapon) It's not what I expected, but interesting all the same.

[Rik]

Originally Posted by gunmender

Sounds good, how did the trajectory get measured? the golf guys use a series of sensors i believe for the swing and speed

No reason why you couln't do that with the blunt. Some sort of speed and direction sensor, then factor it up to how a real shaft would behave.
Um, have you seen the TV games where you swing a sword around over a sensor to fight villains on the TV screen? I've seen both a lightsabre version and a LOTR version recently... Or for that matter, there's the Sony Eyetoy for the PS2...

Lets think... with an eye toy type of setup, you'd need a bow with a damper (like the Airbow, the Exerset or even the Formaster) and a way to enter your arrow characteristics (maybe type of arrow and measured speed). Then the cam on top of the TV would detect things like when you released, and where the bow was pointing (maybe even alter the arrow behaviour depending on the mistakes you make!) and the resulting arrow trajectory could be displayed on a TV screen.

How's that? Sort of thing you were thinking of?

[gunmender]

Sounds ok Rik, im a bit unsure about these game type things. it would probably have a better reception in the field archery elements, but no doubt the target number crunching would be easier for a PS2 consol?

I like the idea of the exercet being used as well, maybe milage if it could be done!!

[Tarkwin]

In theory it would be possible to have a longrod with three IR transmitter and reciever pairs installed, both tips and the middle, aimed at the ground where you would have a mat, the difference in time between each pairs send/recieve pulse would define the angle of trajectory.

Something like the bolt on arrow dampers used for form training could be adapted to

a ) measure the length of the draw - by simple counting of gradations that pass a sensor
b ) calculate the release velocity (by determining the time it takes to count back to zero from full draw upon release) and factoring this against characteristics of shaft type
c ) by having a flexible pseudo-arrow and using lateral and vertical travel sensors determine the effects of a poor release and or anchor.

T.

[Little Miss Purple]

this all sounds a bit complicated or as Dave says a bit dodgy on the monitor fron!! Still food for thought though......mmm....chocolate....