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Monday, July 20, 2015

My DRDL project

Hello!

I am posting this after a long time.

My college requires me to do summer training or project for few weeks at any workplace outside to gain some practical experience. I planned to do it outside Hyderabad and live on my own, but my mother insisted that I stay at home and join some place within limits of my reach.

With some contacts through my mom's department and endless pursuing, I finally 'earned' an opportunity to work at Defence Research and Development Laboratory (DRDL) at Kanchanbagh, Hyderabad. Well, very few students get to do their training/internship at reputed organisations like the above. I felt lucky and at the same time, bit scared as how would my first day go.

I joined on 5th June. The campus is really huge. It's main road stretches itself 6 km inside till back gate(never measured it though) and its highly secured at entry points. No electronic devices are allowed inside. The scientist I was assigned to sits in a lab near the back gate. I went there almost every alternate day by taking bus and get to the lab from main gate by asking two wheeler lifts. Believe me, now I can read your mind and make you allow me to sit behind you.

The lab I worked under develops support systems for Bramhos, the hypersonic cruise missile made jointly by India and Russia. At the time I worked, it housed the launcher truck and communications truck. Those were quite big.

My mentor was Mr. Shammas Mohyaddin. He described himself as an electrical guy the first time I met him and was then studying control of seeker's gimbal motors. He asked me if was interested in PID control. I happily said 'Yes!'(That was what I was aiming for with coreless motors of my tiny quadcopter project).The sad thing was I had to be well versed in control system concepts first of all and I opted out computer architecture as my 4th semester elective in spite of having control systems as a choice. Though I realized the latter's importance a bit later, I still regret.

My project was to study and simulate speed and position control of a armature controlled DC motor through Prorportional-Integral-Derivative(PID) control using MATLAB's Simulink. Mentor suggested me 'Control systems engineering by Norman Nise'. I should say, this is a great book. It got me interested in control systems in very less time(Just read the first chapter). I had three weeks time to finish it and my mentor being busy, spent an hour and half with me every time I visit to teach concepts and clarify doubts. Thank You Sir!

Though the staff does not allow you to use the hardware and facilities there at this stage, you can learn lot about things they work on. There is also a library there to help you out.

With this, I almost finished main portions of the book and could learn Simulink on my own to prepare submit my report on time(I could document only the speed control one). I learnt two things from this experience:

1. I have grown up and now it's my turn to learn and do things which I like. There is no time to be wasted.

2. 'I am the master of my fate, I am the captain of my soul', quoted from 'Invictus' is very true.

Thanks for reading!
Goutham

Saturday, July 4, 2015

My team won

Yes!

I am very proud to say that my team SRM VAIMAANIX won international 5th rank in annual CanSat competition held at Texas, USA during June 12-14. It is a very proud moment for all the team. We made SRM UNIVERSITY proud by standing first in India and Asia. Let me introduce my friends to you first:

From left: Tuhin, Abhisek, Bharadwaj, Arthesth, Rahul
Rahul Ramesh - Team leader
Tuhin Ranjan - Alternate team leader
Shivam Prakash - One awesome bro
Anirudh Shandilya - One more awesome bro
Abhisek Narsimhan - The little genius
Arthesth Aadhran - Egg protector
M V Bharadwaj - The fabricator

More details at http://www.cansatcompetition.com/winners.html
Reference blog is http://cansat-srmuniversity.blogspot.in/

It was a great experience working with you all!

Thanks!
Goutham