How Does Goal-Line Technology Work?
Techquickie
·Techquickie
·2018-05-06
·
1,019 words · ~5 min read
0:00
so last I checked we're a tech Channel
0:03
but for some reason there's been a long time ongoing argument in our comment
0:09
section about whether it's football or
0:13
soccer well whichever side of the argument you're on and our writer John
0:19
would like to gently remind everyone that both are perfectly legitimate names
0:23
for the sport something that should interest all fans of association
0:27
football also correct by the way is the recent surge in popularity of goal line
0:34
technology so for those less familiar with the sport you're probably wondering
0:40
how hard is it to tell when the ball goes into the goal we need tech for
0:45
this actually it's a pretty frequent
0:48
occurrence where the ball seems to just
0:51
barely cross the goal line if for example the goalkeeper tries to save it
0:57
while he is basically on the line or if
1:01
it hits off the crossbar and bounces downward as in the 1966 World Cup final
1:08
and since the ball has to be completely
1:11
across the line to count this decision can often come down to literal
1:17
millimeters meaning that referees won't always be able to get it right on their
1:22
own go line technology seeks to remove
1:26
this uncertainty with systems that are more sophisticated ated than mere
1:31
instant replay in fact the systems
1:34
currently used for major European and
1:37
international matches use not just one
1:40
but 14 different cameras with seven pointed
1:46
at each goal and the way it works is
1:49
really cool every camera is connected to
1:52
a computer which can compare both the
1:55
ball and the pitch that's the field to a
1:59
3D bottle allowing the system to
2:02
triangulate the position of the ball at any given moment and even if multiple
2:08
cameras have their view of the ball blocked by something like a big group of
2:12
players scrambling in front of the goal the system can still work since only
2:17
three of the seven cameras are needed at a time to determine where the ball is in
2:23
3D space if the system recognizes that
2:26
the ball has completely crossed the goal line it will will send a signal to a
2:31
special wristwatch worn by the referee to indicate that a goal should be given
2:37
because this system relies entirely on computer analysis it allows the referee
2:42
to rule goal or no goal almost
2:46
immediately instead of Performing the lengthy video reviews similar to what
2:51
you'd see in sports like American football and ice hockey and because
2:56
these cameras are extremely sophisticated I mean we're talking as
3:00
high as 500 frames per second goal line
3:03
technology can be accurate to under 4 mm
3:07
to demonstrate check out how close this
3:10
call was during a 2016 match between
3:14
Bournemouth and liver poool and even though the powers that be were hesitant
3:18
to introduce it after a number of high-profile referee blunders this kind
3:23
of camera- based goal line technology is now being used in these Major Leagues
3:30
non-domestic competitions like the UFA champions league and Copa America have
3:35
also embraced the technology and it was also used at the World Cup for the first
3:40
time in 2014 and will be again at next year's World Cup in Russia but there's
3:46
also a competing method that doesn't rely on cameras involving magnetic
3:51
sensors that are embedded into the goal frame or even underneath the grass and a
3:57
circuit that gets inserted into the ball itself self this system can determine
4:02
when the ball enters the goal by measuring changes in the magnetic field
4:08
it's less expensive than the high-speed camera scheme used by the big money
4:12
competitions so you may see it become more common at lower levels of the game
4:17
over time but there are likely to be
4:20
concerns among players at the highest here about any modification to the
4:26
standard ball and although purists of
4:29
the sport have opposed the integration of technology in general baseball is a
4:35
prime example of this claiming that human error is part of the game the
4:41
current Trend does seem to be toward ensuring that goal calls on the pitch
4:46
are correct especially with influential
4:50
Mega clubs like Barcelona calling for the technology to be introduced in Spain
4:56
so are you a soccer/football fan with an
4:59
opinion one way or the other on goal line technology or heck maybe you have a
5:04
comment about another Sports use of similar technology let us know how you
5:08
feel in the comments and also tell us if you'd like to see more Tekken sports
5:13
videos in the future I mean maybe we could even come up with a techie
5:17
solution to help the Canadian national team improve its game
5:20
or I guess the other option is uh we could just stick to
5:25
hockey tunnel bear VPN lets you tunnel
5:28
to one of plenty different countries allowing you to browse the internet and
5:33
use online services like video streaming
5:36
services as though you are in a different country it is a great way to
5:41
get access to content that's behind pesky Geo restrictions they have easy to
5:47
use apps for iOS iOS Android PC and Mac they also
5:52
have a Chrome extension and it is so simple to use that there is just no
5:58
excuse for for not encrypting your connection and hiding from advertisers
6:05
and your ISP or anyone who wants to spy on what you're doing online your
6:10
activities you just press pretty much one button and boom you are anonymized
6:16
and you can choose whichever country you want to appear as though you are
6:20
browsing from so try out tunnel bear VPN with 500 Megs of free data at the link
6:25
below and if you choose to get a year of unlimited data which probably should you
6:30
can save 10% at tunnel bear.com
6:34
Linus so thanks for watching like dislike check out our other channels
6:38
comment with a video suggestion and don't forget to subscribe it's worth it
6:42
I mean it's free