Monday, January 26, 2015

6 technological things that you have to know about Cricket

This is one of topic area that I like to research and write some kind of blog .I' thinking about this last few months and I haven't get enough time for this .How ever now I got chance to share my research details with you.This is the only what I found .If I was wrote or there is new technology for replace this please let me know


Hawk Eye




                 Dr.Paul Hawkins developed this technology.This technology not only use in Cricket but also use in tennis ,football .This is very trusted tool in sports than other electronic tools,because it's accurate with in 5 mm range. This is originally made for tracking missiles and also for brain surgery.
Hawk eye get data from 6 high performance cameras in the ground.It detect ball when it release from the hand of blower until ball goes to dead.Each position is recorded from each camera when ball pass that camera.This by using these data system generate 3D image or animation to show the path of the ball.

High speed camera
High speed vision camera

Six cameras fixed around the ground
Six cameras fixed around the ground

                  This can get more accurate speed of the ball and direction and also swing of the ball.And also system can predict future path that ball traveled.This technology will help to take decisions about LBW decisions .And also in blower pitch map,wagon wheel ,bounce of the wicket also can generate by using this technology


Cricket wagon wheel
Cricket wagon wheel 

Cricket pitch map
Cricket pitch map
If you want to know more about Hawk eye you can use this my reference articles


LED wicket system




How many times have you seen flashing wickets in cricket match ? Do you believe complete wicket set cost $40,000 ?
                 These flashing wicked called "Zing wicket system".It's invention of Bronte EcKermann, an Australian mechanical industrial designer, and created by South Australian manufacturer Zing International.
                       These bail has microprocessor and it detect both end of bails dislodged from the stumps and flash with in 1/1000 of second.Then it send radio signal to stumps for flash it.For this tactile sensor attached at the end of bails and also top of the stump.



Power is supply by using low voltage battery include in bails and stumps



If you want to know more about LED wickets you can use official zings website


How to measure Speed of the ball


Speed of the ball is measured using radar gun and it's fixed next to the sight screen .This gun has both transmitter and receiver same as police officers measure the speed of vehicle.

Radar gun

 This gun use principle of  Doppler effect and this can determine exact speed with out error and also it can work efficient .Therefore it recorder speed immediately after the blower delivers the ball.And also by using Hawk eye also speed of the ball can be measured. 

You can learn more about this by using this reference 

Snicko 


 Ball pass the bat and bowlers appeal along side with fielders but umpire not impressed about it.Few minutes later Snicko came in front of television and shows us there is a small edge when ball pass the bat.Who is this Snicko ?  What is his role ?


                 Snicko or snickometer is contain very sensitive microphone built in  stumps, connected to an oscilloscope that measures sound waves. When the ball nicks the bat, the oscilliscope trace will pick up the sounds. At the same time, a high speed camera records the ball passing the bat. Then this oscilloscope's out put and camera out put combine and check is their any nick when ball pass the bat.


Hotspot


This is another wonderful technology that we can see these days cricket field.This system normally use 2 infrared cameras at opposite ends,but nowadays we can see more than 2 cameras use for get data.



                When ball hits the bat or pad it generates heat due to friction and these IR cameras can pick these heats If you see this carefully you can see not only friction but also spots that generates more temperature like faces and hands also can see more brighter color when we see these hotspot images 

You can learn more about hotspot by using this link

 

How to measure Distance of  six 

How to calculate massive six just after hit it over the park ? By using meter tapes? If it's like that it will take for ever to measure a six.After surfing few hours across the internet and I came up with 2 acceptable methods 

  • Using projectile
  • Using hawk eye

Using projectile

In this method they use angle of ball and speed when it going from the bat.By using projectile formula broadcasters can measure the distance of six

                                                   d=v2sin(2θ)/g


Where 

d= distance of six
v= velocity at the time when ball going from bat
g= 9.8 ms-2
θ= angle of the ball when it release from the bat



Velocity can be measured by using radar gun same as measure speed of ball
And also you can learn more about projectile using these link

Using Hawk eye


     Hawk eye use six high performance cameras .therefore it can predict future path of ball and speed so I think that method also applicable for measure the distance of six .I already explain about Hawk eye technology earlier so you can refer that one also.

Monday, January 7, 2013

Augmented Reality - Virtual is no more in virtual world

         Once upon a time foreigner came to unknown city and open his map and searching for cafe to have coffee.but now he can raised his phone and see detail view of that area.



Above I mention how augmented reality can interact in our day to day life. Few years before graphics only inside computer devices but now technology changing rapidly therefore cutting edge technologies like Augmented Reality can pull computer graphics out to real world.It can combine real world environment with virtual environment.


What is Augmented Reality?

Augmented Reality is integrating digital information with real world image or video.AR can extract real world picture and include information or extra details in to that details.Important thing is this information including happen in real time and in quick manner.Aim of Augmented Reality is generate world that user cannot separate real world from virtual world.

How does Augmented Reality work ?

Mainly Augmented Reality can do in 3 simple steps
  1. Recognition: Recognition of an image, an object, a face or a body
  2. Tracking: Real-time localization in space of the image, object, face, or body
  3. Mix: Superposition of a media (video, 3D, 2D, text, etc…) on top of this image, object, face or body that we identified and tracked in step 1 and 2.

In this process we can see how fast that need to have recognition and tracking happen .because when we raise our phone to some picture that application need to identify that picture as soon as possible with relevant coordinates and locations.And also accuracy need to have in higher position because later virtual details apply according to these information.to get more information about these process use this references 1 and references 2



above image we can see that girl hold book and it's only has red dot but after applying augmented reality techniques we can see apple on top of the book.That's the power of this cutting edge technology.

Usage of Augmented Reality

Augmented reality use in many fields like entertainment, military training, engineering design, robotics, manufacturing and other industries. And also there are some real world applications by using augmented reality like this
  • Live sports streaming displaying graphs and displaying areas and real time player tracking
  • Video games with digital elements blended into the user's environment
  • Virtually trying on clothes through a webcam while online shopping.
  • A display in a pilot's helmet that allows the pilot to, in effect, see through the aircraft.
  • Displaying information about a tourist attraction by pointing a phone at it.
to get more information about best augmented reality application you can use this reference

My verdict

Augmented Reality is one of the best innovation in this era because it's going over simple mobile game to advance military systems.And it's still in early stages and virtual become reality in very near future.when we saw these kinds of things only in scientific fictions or Iron man movie collection.And in near future people like us can experience this interesting technology.By using these kind of technologies it's too easy to bring moon to earth and experience it as in reality rather than go and watch it.