Goal Line Technology in NHL

[Deestroyer]

Watching refs taking 7 minutes to decide if its a good goal or not by Perfetti, if soccer can implement goal line technology why NHL do not have this technology yet, since we already have puck tracking technology its baffling they are unable to say if a puck cross the line completely, its 2025 and refs watching an ipad trying to toss a coin if puck is in or not is hilarious and so outdated, this is what happens when league is run by dinosaurs lol

 

[Stelmacki]

When the NHL chose to borrow from soccer, it chose flopping.

 

[bluesfan94]

Soccer is able to do it because they have a bunch of cameras. The issue here was that the puck was in the glove and thus there was no unobstructed camera shot.

 

[surixon]

Soccer is able to do it because they have a bunch of cameras. The issue here was that the puck was in the glove and thus there was no unobstructed camera shot.

Shouldn't need cameras. Put a chip in the goal line as the puck already has one in it. This isn't rocket science and can easily be implemented.

 

[Belfour20]

A major part of why it's easy for them in soccer is the ball is spherical and the distance from the center point to any other point on the ball is equal distance. Thus using sensors and cameras it can determine/triangulate the center point of the ball it's easy to calculate its radius and if it full crossed the goal line. The shape of the puck in hockey is what makes this a challenge.

 

[tarheelhockey]

Shouldn't need cameras. Put a chip in the goal line as the puck already has one in it. This isn't rocket science and can easily be implemented.

The puck is not a sphere. A chip won’t work.

 

[tarheelhockey]

A major part of why it's easy for them in soccer is the ball is spherical and the distance from the center point to any other point on the ball is equal distance. Thus using sensors and cameras it can determine the center point of the ball it's easy to calculate its radius and if it full crossed the goal line. The shape of the puck in hockey is what makes this a challenge.

Solution: get rid of pucks, have the players shoot 15oz vulcanized rubber balls instead.

 

[bluesfan94]

Shouldn't need cameras. Put a chip in the goal line as the puck already has one in it. This isn't rocket science and can easily be implemented.

that would work if the puck was regularly shaped

 

[Blanick]

Shouldn't need cameras. Put a chip in the goal line as the puck already has one in it. This isn't rocket science and can easily be implemented.

Put a chip in a object that gets ricocheted off of bodies, boards, glass and post at speeds upwards of 100mph. That chip is destroyed within the first few seconds of play.

 

[Stephen]

Don't they literally already have the technology?

Their Edge Goal Visualizer already tracks the movement and position of the puck in real time. You just have to know what the coordinates of the goal line are, or the coordinates of the area inside the nets. I dunno what else you'd need, the offset of the diameter of the puck?

 

[a mangy Meowth]

Don't they literally already have the technology?

Their Edge Goal Visualizer already tracks the movement and position of the puck in real time. You just have to know what the coordinates of the goal line are, or the coordinates of the area inside the nets. I dunno what else you'd need, the offset of the diameter of the puck?

View attachment 1022289

Honestly how accurate/precise do you think this tool is?

 

[Mr Nogatco]

Soccer is able to do it because they have a bunch of cameras. The issue here was that the puck was in the glove and thus there was no unobstructed camera shot.

There are plenty of cameras in NHL arenas tracking the game from every conceivable angle, they just aren’t used in the broadcast

 

[ijuka]

NHL should be tracking the puck to begin with, since NHL Edge includes puck tracking data.

So it shouldn't be an issue to use that puck tracking for determining when it's a goal and when it isn't, but I guess the technology just isn't there yet.

 

[ijuka]

Honestly how accurate/precise do you think this tool is?

Hard to know about this tool because NHL's tools most likely suck, but in general these tools can be far more accurate than the toronto situation room guys eating donuts.

 

[Kahvi]

Solution: get rid of pucks, have the players shoot 15oz vulcanized rubber balls instead.

there's already rinkball

 

[Drake1588]

I think the counter argument has to do with the puck not being a sphere. In tennis and futbol, it makes it easier since you only have to calculate radius, allow for the distance from the central sensor to the edge, and then make your calculations from there. A puck complicates the use of an internal sensor to determine crossing the plane at a specific point when the puck is airborne; it doesn't stay level once it leaves the playing surface. You could add gyros and such, perhaps, but then each puck starts to get crazy expensive (and I'm not sure how simple that is to execute with vulcanized rubber anyway).

 

[bluesfan94]

There are plenty of cameras in NHL arenas tracking the game from every conceivable angle, they just aren’t used in the broadcast

Right, the issue isn’t the lack of cameras in hockey, it’s the plethora of obstructions. My point about the cameras in soccer is that it isn’t like a chip system or whatever.

 

[Blueline Bomber]

Honestly how accurate/precise do you think this tool is?

This is what it comes down to. The league does have the ability to track the puck. It has the ability to tell you when the puck crosses the goal line.

The issue is that it's not 100% accurate when it decides the puck has/has not crossed the goal line. As someone who works with the technology, there have been times when a goal is registered, but the replay shows it never fully crossed the line. Or it's registered a goal when the puck is jammed up on the outside post of the net.

Human eyes are always going to be the best judge on what is/is not a goal in the NHL. I don't think the tracking technology will ever get good enough to override the fringe cases that you'd want tracking technology to rule on.

 

[Stephen]

Honestly how accurate/precise do you think this tool is?

Its GPS isn’t it? You just need a diameter of the puck and the coordinates of the goal line. The technology is there.

 

[Stephen]

I think the counter argument has to do with the puck not being a sphere. In tennis and futbol, it makes it easier since you only have to calculate radius, allow for the distance from the central sensor to the edge, and then make your calculations from there. A puck complicates the use of an internal sensor to determine crossing the plane at a specific point when the puck is airborne; it doesn't stay level once it leaves the playing surface. You could add gyros and such, perhaps, but then each puck starts to get crazy expensive (and I'm not sure how simple that is to execute with vulcanized rubber anyway).

A puck is just a cylinder though. How hard could it actually be to figure that out? We’re just talking about level of detail here.

 

[hangman005]

For some reason a cheat from EA Cricket in the 90's comes to mind.



So just have the puck explode when it completely crosses the goal line.... and hey the goalie probably didn't need that hand anyway

 

[a mangy Meowth]

Its GPS isn’t it? You just need a diameter of the puck and the coordinates of the goal line. The technology is there.

My guess is that the GPS technology actually ISN'T to the level of precision (finer than millimeters probably) that would be acceptable for the NHL. Or perhaps it is, but it's just prohibitively expensive.

 

[bluesfan94]

My guess is that the GPS technology actually ISN'T to the level of precision (finer than millimeters probably) that would be acceptable for the NHL. Or perhaps it is, but it's just prohibitively expensive.

Also, the center position of the puck (or wherever the chip is located) isn't determinative. And because the puck isn't spherical, you would need to be able to precisely account for it's angle, which would require a lot more than a chip and GPS, as I understand it.

 

[Stephen]

My guess is that the GPS technology actually ISN'T to the level of precision (finer than millimeters probably) that would be acceptable for the NHL. Or perhaps it is, but it's just prohibitively expensive.

Yeah perhaps it’s a cost thing to get up that level.

 

[Canadienna]

Yeah perhaps it’s a cost thing to get up that level.

I work with high accuracy GPS systems, and it's quite involved to get down to sub 1cm accuracy.

I'm not even sure how you would implant this stuff into a puck, and it could require additional base station nearby (maybe attached to the glass behind the net?).

Then on top of all of that, the people bringing up the fact that the puck isn't spherical are right on. It means you need the exact angle, as a slight difference in tilt in the puck could be a difference of a few centimeters.

Overall, it's not nearly as easy as people in this thread are making it out to be. Maybe possible, but certainly not simple.