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ROBOCON DAIRY 2016 Team Knight Rider Report on National Robcon 20161 st Nov 2015 to 5 th March 2016

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Page 1: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 Team Knight Rider

Report

on

“National Robcon 2016”

1st Nov 2015 to 5th March 2016

Page 2: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 2 ~ Team Knight Rider

ACKNOWLEDGEMENT The team members of ROBOCON 2016 sincerely acknowledge the financial and logistic

support provided by Dr. Akshai K. Aggarwal, Hon'ble vice-chancellor, Gujarat Technological

University, Ahmedabad and his complete administrative and moral support, without whose

blessings we would not be able to participate in ROBOCON.

The support of Dr. J. C. Lilani, Registrar, Gujarat Technological University, Dr.

Ramsinh Rajput (former Chief Accounts Officer), CA Chitrali Parmar (Internal Auditor), Mr. A

C Solanki (Purchase Officer) in helping us getting funds from the GTU’s account for purchasing

the components required for fabricating the robots, and also in allowing us to work in the

Robotics Room of CiC3 (Community Innovation & Co-Creation Centre) and 3-D Printer is

highly acknowledged.

The Robocon team members would also like to thank Prof. Raj Hakani, the team mentor

and faculty-in-charge, Dr. Mihir Shah (CiC3 Adviser) and Mr. Sohil Patel, CiC3 Mentor, Prof.

Y. D. Vora (Associate Professor - Mech), Other, 19 Faculties from different colleges affiliated to

the GTU and CiC3 - Professors (Prof. Krutika Paradkar, Prof. Rutika Ghariya, Prof. Tosha

Shukla, Prof. Mitesh Solanki and Prof. Hemal Nayak) for their guidance.

Thus, there is an endless list of people from different departments and sections of this

institute, without their supports and blessings the participation in Robocon India 2016 would not

have been possible.

Page 3: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 3 ~ Team Knight Rider

PERSONAL NOTE

This section is dedicated to all the people involved in and around the team GTU who

work day and night for the fulfillment of their dream of participating in ROBOCON. There are

people who work in core teams, some work in management teams, some work in logistics, some

work only to give suggestions and to support our team i.e Dr. Mihir Shah and Mr. Sohil Patel

are great motivators.

Thank you, sir!

Page 4: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 4 ~ Team Knight Rider

CONTENTS

Acknowledgement ………………………………………………………………........................ 2

Personal Note ……………………………………………………………………......................... 3

Contents …………………………………………………………………………......................... 4

ROBOCON 2016, Team Members…………………………………………………......................

1. THEME, RULES AND AIM ' 16

1.1 Game Concepts …………………………………………………………......... 6

1.2 The Importance of Safety.........................……….............................................. 6

2. RULES

2.1 Quick Guide ......................................... ……...................................................... 8

2.2 Outline of Contest ............................. ………………………………….............. 10

2.3 Game Field : Structure ................................. ……………………………........... 10

2.4 Robot Design and Development ........................................................................... 13

3. A GLIMPS OF THE JOURNEY : AN ACCOUNT OF ROBOCON AND ITS PREPARATION

3.1 Before robocon ....................................................................................................... 15

3.2 Release of problem statement.................................................................................. 15

3.3 Design & discussion............................................................................................... 16

3.4 Eco robot design..................................................................................................... 16

3.5 Hybrid robot design................................................................................................ 19

4 MAIN EVENT : ROBOCON INDIA 2016

4.1 Practice Session Day 1 (1st

March 2016)................................................................. 28

Page 5: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 5 ~ Team Knight Rider

4.2 Practice Session Day 2 (2nd

March 2016)................................................................ 30

4.3 Sensor Calibration on Game Field........................................................................... 35

4.4 League Matches....................................................................................................... 36

4.4.1 League Match - 1 (3rd

March 2016)....................................................... 38

4.4.2 League Match - 2 (4th

March 2016)....................................................... 42

4.4.3 Things Learnt from the robots of other teams......................................... 44

5 PHOTO GALLERY........................................................................................................... 46

6 SOCIAL MEDIA............................................................................................................... 59

Page 6: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 6 ~ Team Knight Rider

ROBOCON 2016, Team Members

Prof. Raj A. Hakani (Team Mentor & Faculty - In Charge)

Prof. Rutika Ghariya (Faculty Mentor)

Milan Shah (Instrumentation and Control ) - Team Captain and Leader

Viraj Shah (Electronics and Communication) - Electronics Team Coordinator

Brij Patel (Mechanical) - Mechanical Team Coordinator

Kunal Dave (Mechanical) - Mechanical Team Coordinator

Electronics / Electrical/IC Mechanical / Automobile Jay Dalwadi Rushabh Dave

Karan Kungwani Aniket Shimpi

Jaydeep Bhadani Nikunj Vaja

Arjav Raval Maulik Ruparel

Arjun Dedaniya Maharshi Oza

Krutarth Trivedi Dharshan Kothari

Sarth Rana Dharmik Shah

Rahul Patel Rameezkhan Pathan

Rahul Meghwal Arjun Limbad

Vandit Gajjar Bhaumik Patel

Shubham Soni

Khusboo Rajpurohit

Priyanka Balaji

Devanshi

Moinunddin Chudesara

Akash Patel

Ghanshyam Vaghasiya

Malkaush Ghadhvi

It is certified that all the above students have worked for ROBOCON INDIA-2016

held in Balewadi Stadium, Pune (March 3-5,2016) after working on the design,

fabrication and testing of the robots for the ROBOCON competition since

November 2015 when the game plan and Team of GTU was declared..

Page 7: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 7 ~ Team Knight Rider

1. THEME, RULES AND AIM ' 16

1. 1 Game Concepts

At Present, we utilize the energies for several purposes in daily lives. The sources of all energies

are from nature. Human extract synthesize these energies from nature. Among all the energies,

fossil energy is among the cheapest and easily available. In the past, we misunderstood that fossil

energy had unlimited amount and superfluously consumed them. Our energy-consuming habit

from the past has affected us a lot this day. The sources of fossil energy are harder to explore.

The existing fossil energy will last not too long. In order to solve this problem, we have to

efficiently utilize the existing energy and at the same time explore and utilize alternative,

sustainable energy which should be clean and renewable in order to compensate the energy from

fossil.

1.2 The Importance of Safety

The participating teams, as the robot designers, are responsible for the safety of their robot. They

must work and cooperate closely with the organizers to ensure the utmost safety of the contest.

Team members must wear running shoes with rubber sole, helmets, and safety goggles during

the matches and test runs.

Page 8: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 8 ~ Team Knight Rider

2. RULES

2.1 Quick Guide

Duration of the game is 3 minute

(Source : http://www.roboconindia.com/index.php/theme-and-story)

Page 9: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 9 ~ Team Knight Rider

Terms and Definitions

Term Definition

ECO Robot An automatic robot. It does not have and actuator to drive itself. It

received driving energy from hybrid robot. Also it has to use only a

steering actuator to control its direction to track the path.

Hybrid ROBOT Hybrid Robot. Either a semi-autonomous or fully autonomous robot. It

indirectly drives Eco robot; for example, using wind force, magnetic

force, gravitational force , solar energy etc.

Actuator A device that creates motion

Steering An action that turns heading direction of a robot

Driving An action that creates front motion of a robot

Semi-autonomous Ability to work independently for some actions and also work according

to commands from an operator

Fully autonomous Ability to work independently without any helps from an operator.

(Source : http://www.roboconindia.com/index.php/theme-and-story)

Page 10: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider

2.2 Outline of the Contest

Each team consists of no more than two robots: one manual (Hybrid) and one

autonomous (ECO) robot . The Eco robot does not have any actuator to drive itself. To drive

Eco robot, driving force is indirectly getting from the hybrid robot, for example, solar energy,

wind energy, gravitational force, magnetic force, etc.

Eco Robot carries wind turbine propeller, and pass through 3 zone, 1) Hills and Slope, 2)

River, 3) Down Hills. In River zone, Hybrid robot does not enter, but it has to be given a indirect

power supply from remote zone. It must pass through zig zag, highland and down hills. At the

end of down hills Hybrid robot picks up propeller from Eco robot to enter into the start zone 2.

Once the hybrid robot in manual mode is transformed to autonomous mode, hybrid robot

carrying wind turbine propeller climbs the wind turbine pole and assembles wind turbine

propeller on wind turbine attached on top of the wind turbine pole.

The team that successfully assembles wind turbine propeller earlier is the winner of the

game. This type of winning is called " Chai-Yo".

2.3 Game Field: Structure

The field consists of a game area having the dimension of 14000 mm X 14000 mm and

surrounded by a wooden fence with the height of 100mm and the thickness of 50mm. The game

field is divided equally for two teams by a wooden fence with the height of 100mm and the

thickness of 50mm.

White lines with the width of 30mm made of non-shiny sticker is drawn on the floor of the game

area which are used to guide the motion of hybrid robot and travelling the path of ECO Robot.

The game consists of a "3 Slopes and Hills", "River", "Down Hill".

Hybrid Robot Start Zone 1: - “Hybrid Robot Start Zone 1” is a square area with the length of

1,000 mm each side. At the beginning of the game, Hybrid Robot has to stay in Hybrid Robot

Start Zone 1.

Eco Robot Start Zone “Eco Robot Start Zone” is a polygon area with the width of 600 mm.

Eco Robot Start Zone of Red team is in pink color. Eco Robot Start Zone of Blue team is in

sky-blue color. At the beginning of the game, Eco Robot has to stay at the Eco Robot Start Zone.

Page 11: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 11 ~ Team Knight Rider

"3 Slopes and Hills ": - 3 Slopes and Hills are part of Eco Robot's travelling path having the

width of 600 mm. There are 3 sets of Slope and Hill. Hill 1 is 200 mm, Hill 2 is 400 mm, and

Hill 3 is 600 mm above the floor respectively. Slope 1 connects Eco Robot Start Zone with Hill

1. Slope 2 connects Hill 1 and Hill 2. Slope 3 connects Hill 2 and Hill 3. There is 15° Turn at

each slope and Hills.

River: - “River” is a part of Eco Robot’s traveling path having the width of 600 mm. River is

zigzag Path. Islands locates at the inner corners near River to obstruct straight motion from Hill 3

to the Highland of Eco Robot. Each Island is an isosceles triangle prism with the triangular base

of 200 mm, the triangle height of 100 mm. The prism height is up to 100 mm from the surface of

River.

"Down Hill: - “Down Hill” is a part of Eco Robot’s traveling path having the width of 600 mm.

Down Hill descends from 600 mm above the floor until the floor level. Down Hill is a wave

curve from top view.

Page 12: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 12 ~ Team Knight Rider

Figure : Isometric View

(Source : http://www.roboconindia.com/index.php/theme-and-story)

Page 13: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 13 ~ Team Knight Rider

Points For Each Task And Deciding the Winner:

The first team that Hybrid Robot successfully climbs Wind Turbine Pole and assemblies

Wind Turbine Propeller is the winner of the game by knockout. This type of winning is called

“Chai-Yo”.

If neither team achieves “Chai-Yo” at the end of the 3 minute match, the winner is decided

based on the earning scores. The team that earns higher scores after score deduction from the

violation is the winner.

2.4 Robots Design and Development

Each team has to build 2 robots: one Hybrid Robot and one Eco Robot.

Each robot cannot be split into sub-units or connected by flexible cords.

The communication between robots is not allowed.

Weights of the robots

o The total weight of Hybrid Robot, Eco Robot, controller, cable, primary set of batteries and any

equipment or devices used in the entire contest must not exceed 40 kg. However, the backup set

of batteries of the same type, weight and voltage as the primary set of batteries, is exempted.

Power sources of the robots

o Each team must prepare its own power sources.

o The voltage of the power sources used by each robot must not exceed DC 24V.

o The pressure of the compressed air power must be not more than 6 bars.

Eco Robot

o Eco Robot must have its dimension no less than 400 mm in width, length and height all the time.

There is no limitation on the maximum dimension of Eco Robot.

o Eco Robot is allowed to use only one actuator to steer heading direction of the robot. The

actuator is not allowed to drive the robot. The driving force of Eco Robot is obtained indirectly

From the Hybrid Robot; for example, wind force, magnetic force, etc., or from the game field

structure; for example, gravity force, etc.

Page 14: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 14 ~ Team Knight Rider

Hybrid Robot

o The Hybrid Robot can be either semi-autonomous or fully autonomous robot.

o Hybrid Robot must have its dimension no larger than 1,000 mm in width, length and height all

the time.

o The robot is allowed to expand, stretch or extend as long as the dimension is still within the limit

dimension.

o Hybrid Robot cannot physically touch Eco Robot except during taking Wind Turbine Propeller

from Eco Robot at Wind Turbine Station.

Semi-autonomous Hybrid Robot operation

o An operator is allowed to operate the robot for all tasks except Wind Turbine assembly task.

o The operator can be inside the game field for all tasks except during Wind Turbine assembly task

that no one is allowed to stay in the game field.

o Hybrid Robot is operated by the operator through a connected cable. The length of cable from

Hybrid Robot to the operator must be in between 1,000 mm and 3,000 mm.

o An infrared, visible ray, sonar, sound, or wireless radio frequency remote control is prohibited.

The operator is not allowed to ride on the robot.

o Semi-autonomous Hybrid Robot has to transform to autonomous mode before climbing Wind

Turbine Pole only inside Hybrid Robot Start Zone 2. It is not allowed to remove any parts out of

the Hybrid Robot during the transformation.

Fully autonomous Hybrid Robot operation

o If Hybrid Robot is designed as a fully autonomous robot, all team members must outside the

game field expect during the start operation or a retrial.

Dis-qualifications

o A team will be disqualified if it commits any of the following actions during the match.

o The team damages or tries to damage the field, facilities, equipment or opponent’s robots.

o The team performs any acts that are not in the spirit of fair play.

o The team fails to obey instructions or warnings issued by the referees.

o The team has made a false start for three times in the same match.

Page 15: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 15 ~ Team Knight Rider

3. A Glimpse of the Journey: An account of Robocons and its preparations

3.1 Before ROBOCON

Gujarat Technological University (GTU) Robocon Team selected through Written Test and

Personal Interview.

o Written Test

There are two separate papers for (Mechanical and Circuitix (EC/IC/EE/CE) branch)

Written test paper (75 Marks) consisted of 2 parts. The 1st part was completely based on

Rulebook and about Robotics (25 Marks) and the 2nd

part consisted of Basic Technical question

(45 Marks) for circuit branch Electronics, Programming, Digital Signal, Control System. While

for Mechanical branch CAD/CAM, Kinematics & Dynamics, Strength of Material, Vibration &

Balancing. The entire paper was MCQ based.

o Personal Interview

The selected students were interviewed one by one by the faculty advisor, Experts of Robotics

and Faculty member of the GTU. Detailed interview of every selected candidate and the panel

looked for every minute detail of the candidate ranging from Academic knowledge to the

enthusiasm for learning new things and readiness for working round the clock for the team.

3.2 Release of Problem Statement

The problem statement was released in mid-September. The primary task on our agenda was

discussing the design of our robots. The team was divided into groups of 4 (two each from

Circuitix and mechanical). Each team was expected to brainstorm all possible ideas and come up

with designs which were approved by both the departments in each team.

3.3 Design and Discussions

Gujarat Technological University, Team, 1

st time taking part in these types of national Robotics

event so Component selection and Design is the most crucial stage. A meeting was held every

alternate day all through the month of November to End of December.

Page 16: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 16 ~ Team Knight Rider

It was obvious from the problem statement that the Selection of Power transfer source from

Hybrid robot to Eco bot and design of Eco bot was the most crucial and that is where our

discussion begun. There was a general consensus on the use of wind energy source to transfer

power instead of any other alternate. So we set our target designs should be prototyped by the

end of December to gauge how far the wind force gave energy to Eco bot and the line following

in Eco bot.

In the early stages of design, when the problem statement was still being discussed, Hybrid was

considered to be the "easy" but, just mount four wheels and drive the robot.

We took the calculations at face value and considered only those mechanisms which seemed to

be feasible based on our calculations. Based on the discussions, team ordered some components-

motors, actuators, etc. - which fit our requirements.

Over here, we would like to mention one thing specifically- when deciding on the specifications

of motors, actuators, etc. it is necessary to arrive at decisions only after prototyping designs with

available equipment, not be calculations alone. As engineers, it is necessary that we are able to

observe from what we see in real and not depend on theoretical calculations -which involve lots

of assumptions.

3.4 ECO Robot Design

Objective

To design an Eco robot in such way that it can freely move on arena and it will not go down or

return back from the slope. And it has to follow the line so it can be easily controllable.

Iteration of ECO robot design

Majority of Mechanical design and change in Material were done in ECO bot.

Idea 1 :

First Eco bot were designed from PVC foam sheet, circular base and frustum in trapezoidal

shape was decided, while in electronics side two simple DC motor as free wheel, two robot

wheel and two caster wheel were used as actuators. To follow white line four line array sensor

(plus shape ) were used. But these design was failed because it cannot carry weight and air was

gone outside frustum.

Page 17: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 17 ~ Team Knight Rider

Fig: Pro - E Design 1 of ECO bot Fig: Testing of Pro - E Design 1 of ECO bot

Idea 2

To resolve the problem, to control air in one direction, different shape of frustums was designed

and tested. Finally, the conclusion is, large diameter circular shape frustum has capability to

control air in one direction. There is massive change in the design, Switch rectangular shape

from Circular based, circular frustum instead of rectangular or trapezoidal, Aluminum Material

used instead of PVC foam sheet.

As a result, we get the strength to carry weight and control air in one direction

Fig. Simulated different type of frustum shape and base

Page 18: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 18 ~ Team Knight Rider

Fig: Line follower sensor used in Eco bot design 1 and design 2

Final Design

One design was finalized on the basis of air controlled in one direction, easy movable base,

based on speed and reliability.

Component used in Eco robot

Name of Component Qty Name of Component Qty

Lipo Battery (11.1 V, 3700MAh) 1 Arduino UNO 1

Arduino Mega 2560 1 Rubber Wheel 4

IR Sensor 2 Caster Wheel 3

Potentiometer (2K) 15 LDR - (Class -2) 15

PCB 2 Frustum 1

Servo motor (Direction Purpose) 1 Micro sg servo motor (Braking

Purpose)

2

IC L293D 2 IC LM324

Hinges Aluminum Rod

Aluminum Plate

Page 19: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 19 ~ Team Knight Rider

Electrical Aspects (Components Used)

Microcontroller: For these competitions, open source microcontroller Arduino board was used.

Parallel programming was used, for that we established serial communication for communicating

between Arduino Mega and Arduino UNO. Mega was used to interface with the 15 LDR (Class -

2) sensors and send their data to the master whenever it ask for the data. While UNO was used to

interface with one servo motor for direction, purpose and two micro servo for breaking purposes.

Line follower Sensors: LDR sensors which give different analog values of different colors for

line following. Based on that value, Arduino controller gives the command to servo motor for

direction.

Motor Driver : The motor driver used for driving motors are L293D motor driver IC. These

could be used to drive two motors with a current rating of 1A.

Specification of Robot

Dimension of Robot 535 L X 509 W X 600 H (mm)

Dimension of Aluminum Section (5mm Thick) 320 L X 453 W (mm)

Diameter of Frustum 490 mm

Diameter of Wheel 80 mm

3.5 Hybrid Robot Design

Objective

To design a Hybrid robot such way that it can carry power supply, actuators, and it also has a

mechanism to climb poles. The design arm such way, it can extend up to 1000mm to provide the

indirect power supply to Eco boat.

In parallel with the Eco boat design, hybrid boat design, and its electronics part was discussed to

get an idea of the type of sensors, wheels, arm mechanism that would be used.

Iteration of Hybrid robot design

Majority of Mechanical design changed in based and arm done in Hybrid robot.

Page 20: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 20 ~ Team Knight Rider

Idea 1

Initially, just after the problem statement for robocon 2016 was released, our initial thought was

the hybrid robot has functionality to carry all load, and able to extend its arm to provide wind

energy to Eco boat. First Hybrid robot design, was discussed on paper and designed in creo

software with consideration of all load calculation and other parameters.

As discussed in the meeting, C Shape is decided for hybrid robot, lower based is partially cut in

cross section at each corner while upper base is a rectangular cut with C Shape and 100 mm

omni wheel is mounted.

For robotic arm, total six link was designed, 3 links on the left hand side for transfer the wind

energy from hybrid robot to Eco robot and other 2 links on the right side for balancing purposes.

At the time of testing, this designer was not working properly.

During practice sessions, left side track and right side track, every time position of the link has to

change.

Handling of Omni wheel is difficult with a side cut section based

Fig : Theoretical Calculation and Hybrid Robot Design

Page 21: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 21 ~ Team Knight Rider

Fig : Top View of Designed Hybrid Robot Fig : Side View of Designed Hybrid Robot

Fig. Front View and Pole Climbing Mechanism of Hybrid Robot

Page 22: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 22 ~ Team Knight Rider

Idea 2

Second Hybrid robot design, was realized for fabrication to encounter problem faced in design 1.

This design was quite different from the first design. Designed hybrid robot with C shape

rectangular in both level and 100 mm mecanum wheels was mounted on the based while for arm,

3 link rack and pinion mechanism was discussed.

At the time of testing, this design was working properly to control robot, but during practice

sessions, a team facing a balancing problem and robot wheel was sleeping because of one side

rack and pinion mechanism.

Final Design

After being unsuccessful in getting balancing the wheel, sleep problem, third design was

realized for fabrication which is the combination of the first two designs.

Name of Component Qty Name of Component Qty

Lipo Battery (11.1 V, 5200MAh) 1 Lipo Battery (11.1 V, 3700MAh) 1

Arduino Mega 2560 1 Mecunum wheel 4

PS2 Remote 1 DC Motor 300 RPM (23 Kgcm) 4

ECS Motor Driver 30A 1 DC Motor 10 RPM (120Kgcm) 4

Servo Motor (16Kgcm) 2 DC Motor 10 RPM (106kgcm) 6

Hercules Motor Driver 7 BLDC Motor 2200 KV 1

Hercules Motor Driver 4 Simple Robot Wheel 10Cm 6

Pneumatic Cylinder 3 Solenoid Valve 2

Aluminum Plate Aluminum Rod

Pulley 2 Belt

Bottle (Fill Compressed Air) 6 Limit Switch 3

Gripper (Printed in 3-D Printer) 1 Acrylic Sheet 2

PCB 5

Total Weight of Robot is 28.6 Kg (at time of Event )

Page 23: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

ROBOCON DAIRY 2016 ~ 23 ~ Team Knight Rider

Electrical Aspects (Components Used)

The PS2 Remote: To Control Hybrid robot

PS2 controller is used. This provided a better

speed control and enabled us to incorporate the

number of controls we needed for different

mechanisms. PS2 controller came as a savior

and proved to be one of the most fruitful things

we did in electrical point of view.

Arduino Platform: The Arduino Mega 2560 is

a microcontroller board based on the

ATmega2560. It has 54 digital input/output pins

(of which 14 can be used as PWM outputs), 16

analog inputs, 4 UARTs (hardware serial ports), a

16 MHz crystal oscillator, a USB connection, a

power jack, an ICSP header, and a reset button. It

contains everything needed to support the

microcontroller; simply connect it to a computer

with a USB cable or power it with an AC-to-DC

adapter or battery to get started.

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First, interfacing the PS2 remote control with it. One of the most precious features of the

Arduino platform was that of serial monitor. Now, joystick data value could be read on laptop

screen. DC Motor were interfaced with Arduino through Hercules motor driver. The code we

employed was so robust and detailed that it gave a clear error if the controller was not properly

connected. Pneumatic cylinder were also interface with the controller through the solenoid.

Interfacing the Hercules motor driver with Arduino

To drive DC geared motor Hercules motor driver were interfaced

with Arduino controller. PS2 Controller gave proper integers

ranging from 0 to 255, it was obvious to use serial

communication to give commands to the Hercules motor.

Mechanical

Pneumatic Cylinder

Pneumatic Control system high pressure air

could make the system faster and more reliable

than convectional motor drive system. In a

hybrid robot pneumatics were used for linear

movement for pole climbing. Three pneumatic

cylinders were used. The pneumatic cylinder

has a 12mm diameter provide stroke of

250mm. The pressure provided by the cylinder

was up to 6 bars. The bottle was preloaded in

the robots which was used for pole climbing.

Air Compressor

Air Compressor was used to store energy as a

compressed air in the pneumatic Cylinder and

with the help of a solenoid valve the cylinder

was closed. In a desire moment the valve was

set open and the energy of the compressed air

was released. This system was quicker and

efficient if could have done properly.

Page 25: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

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Four Wheel Drive:

The holonomic drive system basically consists of

4 Mecanum wheels arranged in such a way that

the robot can be driven in all directions without

having to rotate the bot. These drives can have 2-3

configurations, one of which was used. While

implementing the four wheel drive the only thing

that was kept in mind that, it would be easily

controllable and to reduce the time.

Specification of Robot

Dimension of Robot 592 L X 610 W X 900 H (mm)

Height of Robot (without arm) 360mm

Length of Link 1 360 mm

Length of Link 2 230 mm

Length of Link 3 220 mm

Diameter of Wheel 100 mm

Gripper 130 X 120 mm

Length of Fan 100 mm

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4. Main Event : Robocon India 2016

Venue : Shiv Chatrapati Krida Sankul, Balewadi, Pune

Date: 1st

March 2016 (Day 0)

After the long and enjoyable bus journey, Team finally reached up there at around 8 o’clock. The

team visited the event site as per the schedule, registered themselves and collected the Kit (I-

Card, Room Keys & Food Coupons) provided by the event organizers. After the registration,

GTU Robocon team was allotted a pit (pit no 41), wherein the team was supposed to set up their

robots and the required tools and Electronics components and. 34 team members of the Gujarat

Technological University - Robocon had reported on the event site. The feeling of each member

standing in the Indian National Robocon 2016 Field, Badminton Hall of Shiv Chatrapati Krida

Sankul, Balewadi, Pune was great and was the fruitful result of their hard work.

Fig : GTU Robocon Team Reached at Pune

Page 27: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

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Fig : GTU Robocon Team Reached at Field

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Everyone on site was busy helping their respective team to set up and maintain their robots as

well as taking the tour of the pit area. Around 5000 students, 105 Institutes from across the

country were coming to represent their Institute.

4. 1 Practice Match Day -1 (1st March 2016)

At 10:00 am, pit and practice slot allocated to Gujarat Technological Robocon Team. On day -1,

two time slot of 10min for practice session was allocated to GTU team.

Fig: Participant across India Fig: Main Stadium of Event

Fig : Pit area of Gujarat Technological University

Page 29: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

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Time slot 1: (2:00PM to 2:10 PM)

In the first practice slot, the team performed well, Eco bot successfully reach to river zone at

downhill zone, the line follower sensor of Eco but was working perfectly but braking system of

Eco was not working properly. So it was returned to the pit area and tried to resolve the problem

the teams were facing in the practice arena.

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Time Slot 2 : (9:00 PM to 9:15PM)

After a lot of discussion, the team came up with two ideas for the braking system. The Team was

decided, in this practice session two members were tested and practice with the braking system

while other two member practiced on Slope and Hill Zone.

4. 2 Practice Match Day -2 (2nd

March 2016)

Page 31: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

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At 8:00 am, practice session slot was allocated to each team before League match. GTU got 5

practice session slot before 1st League match.

Slot 1 : (11:00 PM to 11:10PM)

Slot 2: (4:15 PM to 4:25 PM)

Slot 3: (9:05 PM to 9:15 PM)

(3rd

March 2016) Slot 1: (2:05 AM to 2:10 AM)

Slot 2: (6:10 AM to 6:15 AM)

In the subsequent Practice slot, problem of Eco boat in downhill was removed turn by turn and it

was practiced for the other zone. The eco bot and hybrid robot were now able to complete the

tasks and even river zone and downhill zone.

Page 32: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

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4.3 Sensor Calibration on Game Field

Before the beginning of final match, every team verifyed their robot (Height, weight, Sensor,

actuators, mechanical tools and Component as per rule book)

2 minute time was given to every team to calibrate and test their robot on Main field.

Page 36: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

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4.4 League Matches

Inauguration Function

Inauguration function was started at 10:00 AM on 3

rd march 2016. Dr. Sunil Karad sir, Dr.

Yogesh bhalerao Sir, Mr. Mukesh Sharma, Prof. Vishwanath Karad were chairperson of the

event and they declared the event open.

In the year 2016, game was opened by last year national championNirma

University opened the game to drive their robot on game arena.

Page 37: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

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4.4.1 League Match -1 (3rd

March 2016)

Match 36 Time 3:54 PM to 4.03 PM

Page 39: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

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Symbiosis Institute of Technology, Pune Vs Gujarat Technological University

In the first match, GTU team played with Symbiosis Institute of Technology, Pune. In this match

our team cleared Slope and Hills Zone and reached to the river zone, and we got 60 points, but

during driving of robot, hybrid robot touched the track, so, we were penalized for breaking a rule

10 points were deducted, making it a total 50 points with negative marks, while other team did

not score.

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4.4.2 League Match - 2 (4th

March 2016)

In League match 1, team faced the problem of wind energy, hybrid robot was not providing

sufficient wind energy to Eco bot so, we purchased new BLDC motor 2200kV, and fan size was

made 10 inches before the beginning of 2nd

match.

Match 71 Time 9:00 AM to 9.09 AM

In Second Match, GTU team played with Muffakham Jah Collage of Engineering & Technology,

Hyderabad. We did not score any point, due to some technical reason and during 2nd

League

match our team member touched the hybrid robot in field without taking the permission of the

referee. So, we were penalized by 5 points. It was heart-breaking, when we realized our

incapability to complete the tasks. On the brighter side, we did finish in the river zone in the

previous match and team performed well as the debut.

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A combination of both match score is 45 Points

4.4.3 Things learnt from the robots of other teams

The team MIT Pune had used accurate line follower sensor. Their sensor change sensor color

when Eco bot pass from the different color area.

Muffakham Jah Collage and some other colleges use omni wheel for the braking system.

Page 45: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

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Learnt from ROBOCON 2016

The Experience of Robocon 2016 was something which shall always remain with us for our

entire life. Working in a team of 32 members with so much ecstasy and dedication was what we

enjoyed the most. Right since we received the problem statement, we were into it with full flow

and enjoyed every big and small milestone throughout the whole journey.

From the experience of Robocon, we conclude that in order to reach the higher

limits we always dream of, we should put in our efforts until everything is

complete and we should not get complacent just by reaching smaller milestones. We must realize

the importance of performance, and there are teams which work extremely hard, so to get at par

with them or beat them, we should work harder and get motivated by the final goal.

On the brighter side, team performed well as debated, and placed 1st Runner up among all

debut team and 51th

Rank among the 105 registered teams.

Page 46: National Robcon 2016files.gtu.ac.in/circulars/16May/07052016.pdf · 2016. 5. 7. · ROBOCON DAIRY 2016 ~ 10 ~ Team Knight Rider 2.2 Outline of the Contest Each team consists of no

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5. Photo Gallery

Gujarat Technological University Robocon Team work in GTU Lab

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Before Going to Pune

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Pic of ECO and Hybrid Robot

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6. Social Media

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