Oppo Camp Non-Essendon Football Thread XVI

Remove this Banner Ad

Status
Not open for further replies.

Log in to remove this ad.

Because you require 2 major components to make it work, an emitter that transmits the signal (laser, infrared, etc) and a receiver. Where would they put the receiver is one problem, distance and alignment are others

A strong Infrared signal may travel around 25 feet, so you would need the receiver around 3 to 4 meters above the top of the post. Other factors can interfere with the signal a well, such as bright lights and heat. May as well increase post height by 5 meters in this case.

Sonar devices, as used on your car rear bumpers, usually have the transmitter and receiver in close proximity to each other, e.g., side by side, as they aren't looking for a broken signal, but rather an increase in the time that a signal is bounced back to the receiver. Trouble is, the signal spreads outwards once transmitted, not ideal for such a scenario where it would detect a ball 2 feet to the side of the post. Also have a short signal distance of around 5 to 6 feet.

The problem I see with lasers, is that to intensify the beam before they are emitted from the device, the signal is usually bounced of internal mirrors. You will need more than one beam, they would need to form a ring around the outer tip of the post.

So room may be a factor, as may heat, possible internal misalignment from players and ball banging into the post. Even with the post being knocked whilst the ball is in motion, it will vibrate the post and therefore it will no longer align with the receiver.

You would have the benefit of the receiver being at a further distance from the top of the post, but the alignment needs to be very precise. The actions above will cause alignment issues.

The only other option is to use a laser that the military have been testing, it will just dsintegrate the ball as it passes through the beam. I would pay extra to see that during the game. Of course, this will also result in seagulls falling from the sky, planes blowing up. Cant win them all i suppose.🤷‍♂️
I was thinking last night about the needs.

The ball has to have 6 sensors - 2x each end and 4x the mid of each seam.

The range of the sensor needs to be no more than 20m of the goal posts - anything outside that is umpires call for touched.

The arc doesn't need cameras on the ball, just look at the trajectory of the sensors.

The only question I have to my own findings is where the sensors are set inside the ball - on the inside edge leads to damage through kicks and no signal coming through. If sensors are inside the bladder -it runs the risk of them bouncing off due to next to no holding power. In the leather - thechance the sensors rattle around is large.

In 2023 - there has to be better tech to assist in monitoring the ball
 
I was thinking last night about the needs.

The ball has to have 6 sensors - 2x each end and 4x the mid of each seam.

The range of the sensor needs to be no more than 20m of the goal posts - anything outside that is umpires call for touched.

The arc doesn't need cameras on the ball, just look at the trajectory of the sensors.

The only question I have to my own findings is where the sensors are set inside the ball - on the inside edge leads to damage through kicks and no signal coming through. If sensors are inside the bladder -it runs the risk of them bouncing off due to next to no holding power. In the leather - thechance the sensors rattle around is large.

In 2023 - there has to be better tech to assist in monitoring the ball
Technology was used around a decade ago, which the AFL scrapped. This was more to do with ball tracking though, similar to tracking the players through GPS, so not really helpful or relevant in this case.

Apparently they are currently looking at technology with internal sensors in the ball, but this only determines whether the ball hit the post. The bunker already has this available to them, similar to snicko in cricket. Doesn't assist with the Lynch shot unfortunately.

Sensors inside the ball seems doable in some way, I would be more wary of damage through kicking, smashing into the fence etc than signal not getting through. The issue with it all comes down the finite accuracy required on the goal line. Not sure if it is a remedy for a kick over the post though.

Just get rid of it all and allow the umps to back their judgement. They seem wary to make obvious calls due to technology. Sure, they will make mistakes, just as field umpires do, but so does the current technology we rely on.
 

(Log in to remove this ad.)

Swans pressure/tackling has been crazy good.

Clayton Oliver has been BOG
 
Status
Not open for further replies.

Remove this Banner Ad

Remove this Banner Ad

Back
Top