Thursday, November 10, 2011

The HOT SPOT Technology

The Saga of LBW and Caught Behind
        In the early eighties, they introduced Stump Cameras to detect LBW and caught behinds, which served as a helper for the umpires to provide accurate decision. But, as years went on,the technology grew along with cricket and saw the invention of Snickometers in nineties. Still, the people of Channel 9, one of the great broadcasters of cricket in the world, were not satisfied. So, they invented The Hawk-Eye Technology in 2002.
       Still the big technocrat giants didnt sleep. They wanted to make another technology which will be still more accurate in judging these factors. So, they invented The HOT SPOT Technology during the 2006 Ashes Series.

What is hot spot?
       It is an infra-red imaging system, which employs infra-red cameras to capture the happenings of the ground. The basic principle of physics is applied here, which states that, infra-red rays are emitted by hot bodies. Hence, when two bodies come into contact, the impact produces some heat, which emits infra-red rays. Special infra red cameras are used to capture these images.

          Two or more infra-red cameras are situated in suitable parts of the ground on both the sides. They constantly record the proceedings of the ground. They are brought into effect, when there is a suspicion on whether the ball hit the bat or pad in the case of a Leg Before Wicket (lbw) appeal; and also to detect the edge in the case of a Caught Behind appeal.

            The infra red camera shows a series of color spectrum, which depicts the range of heat distribution in the focused area. When, the ball makes an impact on either the bat or pad, the heat generated is shown by a white spot on the impact area. From this, we can conclude the result. This technology is more accurate and produces the best result than the previous techniques. The above pictures shows two typical infra red images recorded by the IR camera. THe impact produced by the ball on the bat and pad can be seen by the white spot.

           The following video shows how hot spot proved to be correct at a place where Snickometer judged wrongly in a test match between Sri Lanka & England. The Snicko suggested an edge, where as the Hot Spot proved its predecessor wrong.

Why India Cannot Use it
            One of the major drawback in Hot Spot technology is that it cannot be used in the Subcontinent countries and South Africa. This is because, the average temperature of these places is usually 30 deg Celsius, which is very high for an IR camera to capture it as the whole capture area will be white, hence, any faint edges cant be determined by this technique.
              Apart from this, the Hot Spot proved to be a very healthy and useful innovation in the field of cricket. But, there is no end to innovations, as in future we might see even better techniques or even better improvisations of this technique can be done so that it can also be used in hotter countries.

Thursday, November 03, 2011


         MECHATRONICS!!! The buzz word that spread around the class for these four years... MCT 2008-12 batch is well known for its unity amidst the diversity in the people. The variety ranging from Pudukkottai to Noida... but the unity prevails with no barriers in language.
         Just as all mentioned in their most emotional speech today, that these four years crossed us like a whisker, is really true. This college life is very short-lived but will remain the best in our life. Here are some of the glorious moments of the FAREWELL which took place on 2/11/2011 at 1:30pm in VKJ217 of Vishwakarma Joth (School of Mechanical Engineering), SASTRA UNIVERSITY.

         The whole party started with voting session starting at 9am in the morning. Organized by Shweta Thiyagaran, Shravya Sri, Sriram, Aadhithya, Agastheesh, Gautham and Dhivyasimhon had some of the most unanswerable questions. The votes was counted and the FAREWELL commenced after the completion of attendance AKD sir's attendance for Industrial Robotics, at 1:30pm.

            The results of the Various categories of polls are;

                 Winner - Sravan
                 Runner - Arun
                 Winner - Dhivyasimhon
                 Runner - Ravi Kumar
                 Winner - Nambirajan
                 Runner - Agastheesh
                 Winner - Nirmal Kumar
                 Runner - Narasimhan
                 Winner - Ashwin. B
                 Runner - Shanmugham
                 Winner - Aadhithya
                 Runner - Siva Karunakaran
                 Winner - Nambirajan
                 Runner - Prasanna
                 Winner - Nirmal Kumar
                 Runner - Upendran & Chittaranjan
                 Winner - Shanmugham
                 Runner - Harish
                 Winner - Ashwin. B
                 Runner - Swetha
                 Winner - Ashwin. B
                 Runner - Aswin. V
                 Winner - Sri Krithiga
                 Runner - Venkataraman
                 Winner - Narasimhan
                 Runner - Aadhithya
                 Winner - Hari Prasanth
                 Runner - Dhivyasimhan
                Winner - Nachiketh Pal
                 Runner - Riazul Ashraf
                 Winner - Chittaranjan
                 Runner - Nirmal
                 Winner - Chittaranjan
                 Runner - Vinodh
                 Winner - Srinath Redd
                 Runner - Balamurali & Vinodh
                Winner - Swetha-Sravya
                Runner - Prasanna-Arun Babu
                Winner - Arun
                Runner - Sudharsan



BEST BIKER - Nambirajan
BEST GYM BODY - Karthick
BEST NICK NAME -  Botha (Siva Karunakaran)

              The award show was followed by some mimic performance by our Aadhithya, Kaushik & Dhivyasimhon on the various personalities that we had come across in our four semesters. It was an exciting fun filled segment which brought the audience on their feet and there was full of claps all around. One of the major part is, Aadhi's mimic as Simbu, TR and Vijay.

                   Then suddenly to everybody's astonishment, Aadhi came to the dais and gave a heart touching speech. It was a fully emotion filled moment. Following Aadhi, many gave some emotional speech and expressed their feeling about being with "The 62". Nachiketh reminded of one funny incident about Chittharanjan's Wolverine style beard in Fluid Mechanics class. Chittharanjan challenged us to come to SASTRA on the same date, 4 years later; on 2/11/2015, for a MECHATRONICS REUNION MEET. Whereas, Krishna Teja, the ever-different man, said that he never miss us, as he have us in his heart forever.

                    Prem Sir, was then called upon as the chief guest to this party. He came with a news that he got his promotion (although it was an unofficial news), the whole class broke in to congratulate our sir. He was then asked to address the class, but he was too shy to express his views. Then finally he wished us good luck and left. 
                   Finally, coke and kurkure packets were within the class to mark the end of the FAREWELL, which was followed by hugs and wishes all over the class within "The 62".

                     An unforgettable day in MECHATRONICS BATCH 2008-12 history... A moment to be cherished and remembered by all... 



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