Cansat Triumph 2012-2013

In 2012, a 10 member team came together to win the second place in Annual Cansat competition organized by The American Astronomical Society (AAS), American Institute of Aeronautics and Astronautics(AIAA) and sponsored by NASA held in Abilene and Burkett, Texas.

In 2013 the same team of 9 Engineering students of SRM University bagged Fifth prize internationally in CANSAT 2013.

The annual competition is open to Universities and colleges all over the World. The team comprises of students from all spheres of engineering who have been working on such stuff since their 1st year by participating in different national and international events and competitions like Robocon, ACODS IISC, Texas Instrumentation’s ADC, National Instruments’ NI Yantra, VI Mantra, Nokia Application Program, Dosa Maker, DRDO AGV Project, Indian Science Congress, SRM’s 1st UAV and Multi-rotor.

 

For the problem statement entitled, “Sensor Delivery System”, a total of 39 teams from across the World came together in the to demonstrate their technique for building a re-entry vehicle which would safely land a rover or a satellite on the surface of a planet without damaging the delicate components such as sensors and antennas.

 

WelkinSat (VaikunthSat Abhiyan) was led by Gaurav Achha of Electronics and Communication Engineering, who said CanSat 2013. This year our performance in CanSat was awesome, we entered the competition with Rank 1 in Preliminary Design Review, 7th in Critical Design Review and 5th at the end of the event. Everything worked as it was meant to be according to problem statement even our telemetry which has failed last year has worked this time reliably.”

“We were only one team who has no large technical failures during the flight. we were among seven teams whose egg was survived after the flight and the payload was recovered in the shortest time. Our ground system software and the mechanical design was a topic discussion among the judges.” said Triyambak Tripathy Aerospace Engineering (System Leader) The reason for the 5th rank is our launch could not happened in the prescheduled time as the team missed competition bus that is meant to take us at launch site.

1009524_10201359130803433_2091464630_o

Robocon 2012

‎3 Robots ,6months , 15 Friends ,2 rooms ,2 cities , 210 competitor robots,67 colleges,6000 mechanisms ,2000 innovations, 1600 participants and all gets over in 3 mins wat an experience im in love with machines now …………

Always on

Technoxperience…

run two brushless from the esc for the first time objective success fully final test was to start the lipo got completely discharged wthe was knw replacement for it as weight was a issue so we finally quitted from the event at 6 am on 30th we tried our best still some precautions had to taken to complete the task0…..

AEROBOTICS
TEAM NAME ILLUMINATI
PRIMARY CONTACT Name TRIYAMBAK TRIPATHY
Phone No. +919445912268
e-mail id tritech123@gmail.com

SECONDARY CONTACT Name SANMAN BHARGAVA
Phone No. +919500005916
e-mail id sanmanbhargava@srmuniv.edu.in

TEAM DETAILS*
S. No. Name College, Location Branch & Year of Study
1 TRIYAMBAK TRIPATHY SRM UNIVERSITY AEROSPACE,2ND
2 SANMAN BHARGAVA SRM UNIVERSITY MECHATRONICS,2ND
3 PRINCE GANOTRA SRM UNIVERSITY MECHATRONICS,2ND
4 DINESH SUTAR SRM UNIVERSITY MECHANICAL,2ND
5 PRANAV S UPADHYAY SRM UNIVERSITY AEROSPACE,2ND
6

*It is not compulsory to have 6 members in a team. Corresponding fields can be left blank. The maximum number of team members cannot exceed 6.

1) A brief description of chassis (hover-craft body) construction. Also mention what material are you using for the body? What is the approximate weight of the vehicle along with the electronics?
1. Balsa wood specifications
Density -90 kg/m3
Compressive strength -5.4 MPa
Tensile strength-7.0 MPa
Shear strength-1.6 MPa
Shear Modulus-96 MPa
Thermal Conductivity- 0.052 W/mK
250 gms approx.

2) Which motors are you using for
(i)Thrust. Also comment whether the thrust is sufficient to lift the hover-craft (Yes/No).
BRUSHLESS DC MOTOR 1400 KV YES THE THRUST PRODUCED IS SUFFICIENT ENOUGH TO LIFT THE HOVERCRAFT
(ii)Navigation (moving forward, left/right)
THE FORWARD MOVEMENT IS CONTROLLED BY 1500 RPM STEPPER MOTOR
THE LEFT RIGHT MOTION BY STANDARD SERVO (S0208) OPERATED VENTS

3) Which battery are you using and its specifications (Volts, Ampere-hours)?
Li-Po BATTERY 7.4 VOLTS AND 850 MAh

4) List the sensors and where they will be used.
1.ULTRASONIC SENSOR TO AVOID CRASHING INTO THE WALLS OF ARENA DUE TO DRIFT OF THE HOVERCRAFT.
2.INFRARED PROXIMITY SENSORS FOR DETECTING THE LINE

5) Which processor/microcontroller are you using?
ATMEL FAMILY ATMEGA 16A FOR AUTONOMOUS TASKS

6) Brief description of algorithm to complete various tasks?
STAGE 1- MANUAL MANOEUVRING
Step 1. The receiver is mounted on the hover craft and transmitter chip is carried by the manual controller and given connections to various servo , brushless from the microcontroller unit of the module. Stepper motor is giver direct connection at this time to the battery which controls the forwards motion of the hovercraft .
Step 2 The speed of the brushless motor determines the thrust to be produced for lift during motion of the craft .
Step 3 The two out of four directional switches are used to control the yawing motion of the craft .
Step 4 After completing the objective the receiver and transmitter is dismounted from the craft and master microcontroller unit is placed for automated manoeuvring
STAGE 2- AUTOMATED MANOEUVRING
The microcontroller with its board is place on the chassis and switched on the hovercraft is programmed to move on the plateau increasing the thrust produced by the motor.
Step 1.The microcontroller development along with the infrared proximity sensors and ultrasonic obstacle sensors to detect the wall till the line appears i.e. we need to make a wall sensing hovercraft to follow a wall.
Step 2 Program is made to run in the controller which controls the locomotion of the craft .

7) Describe how you are implementing wireless manual control?
We are going to use a 8 channel RF Control of 434 Mhz , which is calibrated beforehand.
STAGE 1 THE RECIEVER PINS ARE MOUNTED AS PER DIAGRAM

STAGE 2-THE TRANSMITTER PINS ARE MOUNTED AS PER DIAGRAM

The pins with a u shape projections are the ground terminals.
Specifications
Transmitter and Receiver module: 434 MHz ASK Transceiver Module
Transmitter
• Frequency: 434MHz
• Power: 7V to 12V DC, 9V battery can also be used.
• Number of control inputs: 8 (arranged in 4+4 user friendly configuration for left and right hand)
• Antenna: User selectable PCB track antenna or quarter wavelength wire antenna
• Encoder: HT640 (8 command output and 10 bit security address)
• Reverse polarity protection
• On-board low drop voltage regulator
• Power switch and Power indicator LED
• Size: 12.5cm x 5cm
Receiver
• Frequency: 434MHz
• Power: 7V to 12V DC, 9V battery can also be used.
• Outputs: 8, 5V, TTL / CMOS level, Buffered with IC 74HC245
• 8 LEDs displaying status of the commands (can be disabled by removing jumper)
• Antenna: User selectable PCB track antenna or quarter wavelength wire antenna
• Decoder: HT648 (8 command output and 10 bit security address)
• Valid data confirmation output for customization
• Reverse polarity protection
• On-board low drop voltage regulator
• Power switch and Power indicator LED
• Size: 5.6cm x 4.3cm

8) Pictures/You-Tube link of current status of hover-craft? (Teams inserting pictures and uploading videos on youtube would be preferred)

Code for wall follower.
#include
#include
int main()
{
DDRD=0xFF;
DDRB=0xFF;
DDRA=0x00;
while(1)
{
if(PINA &0b00000100)

{
PORTD=0b00110000;
PORTB=0b00000000;
}
if(PINA &0b00010100)
{
PORTD=0b00100000;
PORTB=0b00010000;
}
if(PINA &0b00000000)
{PORTD=0b00100000;
PORTB=0b00100000;}

}return 0;

}

Code for basic line follower
#include
#include
int main()
{
DDRD=0xFF;
DDRB=0xFF;
DDRA=0x00;
while(1)
{
if(PINA &0b00010100)
{
PORTD= 0b00110000;
PORTB= 0b00000000;
}
if(PINA &0b00000100)
{
PORTD=0b00100000;
PORTB=0b00000100;
}
if(PINA &0b00010000)
{
PORTD=0b00010000;
PORTB=0b00000000;
}
else
{
PORTD=0b00000000;
PORTB=0b00000000;
}
}return 0;
}
Technical requirements are ready but balsa wood which we have ordered will take 2 week time to reach.

9) Anything else you want to write about your design/hover-craft.
The CAD design for the chassis
Isometric view

Top view

Side view

A hole is made on the walls of the air intake hole is to avoid drifting the position of the hole has to calculated by hit and trail in order to maintain maximum stability and avoid drift.

acknowledgements…….

Acknowledgement

I
acknowledge the blessing and support of my mother Smt. Anita Tripathy , father
Shri Badri Narayan Tripathy, sister Miss. Asiknee Tripathy, teachers Mr Durga
Prasad Upadhyay, Mr.Jagannath Adhikari, Er. Sudipt Chaturvedi, Er. Anurag
Mishra, Er. Amit Gupta,Er. Rohit Dewaan, Er.Manish Kumar, Dr Sonal Rajora, Dr
Sudarshan Guha, Er.Neeraj Kumar, Mr. Krishna Gaur, Er. Nishant Porwal. Er.
Vivek Thakur, Er. Veer Pratap Singh, Er. Vimal Upreti, Mr. Horizon Prassanna,
Mrs. Mahima Bansal, Ms. Priyadarshini  and Ms Mitali Goel . They inspired me all the
time during the preparation of this project.

The
support and valuable suggestions from my friends especially Abhinav,Aditya, Ajitesh,
Ashutosh.A, Ashutosh.Y, Chakshu,Dinesh, Honey, Lovish,  Pratyush, Purab, Samapika, Sanman, Saurabh.S,
Shubhra, Suveen and Vikas are highly acknowledged.

In the
end constructive criticism and valuable suggestions from the respected faculty
and audience is welcomed.

Time travelling a new concept @copyrights reserved

In everyday experiences and observations objects around us move at speeds very less than the speed of light. Newtonian mechanics formulated by observing and describing the motion of such objects whose speed approach the speed of light

Experimentally the prediction of Newtonian theory can be tested at high speeds by accelerating electrons through a large electron potential difference of several million volts .according to Newtonian mechanics if potential difference is increased by a factor of 4 then the kinetic energy will be increased by a factor of four times greater and the speed of the electrons will be double to 1.98c.

It’s not only about relativity it’s about travelling with time i.e travelling negative with positive time and more faster than the positive time. Or you may say travelling in past and future. It may seem quite unrealistic in approach but it can be achieved with some basic concepts of physics, chemistry and some mathematics. Let’s start taking things from the basics according modern physics we know that on travelling with a speed of light we used get a change in mass of the body. Given by E=mc2 where m is the mass defect i.e. produced due to release of energy. Going back to the world of chemistry we can measure the decay or growth constant of a given substance by knowing initial and final configuration and the time of reaction . every natural object in and around us has a decay or growth constant . Determining that we can say that how it would look after or before n years. Here comes the order of equation which further clarifies the statement. This part is to be determined by studying the way the compound will undergo decomposition and the equations taking place in the process.

By adopting these ways we would be able to build a time machine keeping our brain as the frame of reference that means we can travel to the past of or present in relative to our surroundings we can’t involve others past or present in this regard.

Normally human brain is divided into two parts sub conscious and conscious parts. The things that we do in our day to day life i.e. reading, memorizing, observing, identifying, etc. are due to the conscious part of the brain. Dreaming, imagination, concentration, rush of adrenaline etc. are the functions of the subconscious part. If we want to move to the past then we have to read both the data but if we have to move to future we need to write something new in both the segments of brain.

The main theory operating behind this the theory of relativity, to have a clear view of this hypothesis we should have a better idea on the theory of everything.