: James Jeffrey Trobaugh
: Winning Design! LEGO MINDSTORMS EV3 Design Patterns for Fun and Competition
: Apress
: 9781484221051
: 2
: CHF 56.60
:
: Hardware
: English
: 270
: Wasserzeichen/DRM
: PC/MAC/eReader/Tablet
: PDF

Design that works! It's what you need if you're building and competing with LEGO MINDSTORMS EV3 robotics. You'll find uses for the new light sensors and gyro sensors in navigation, helping you to follow lines and make turns more consistently. Approach collision detection with greater confidence through EV3's ultrasonic sensor. Learn new designs for power attachments.

Winn ng Design! is about building with LEGO MINDSTORMS EV3 for fun, for education, but especially for competition. Author James Trobaugh is an experienced coach and leader in the FIRST LEGO League. In this book, he shares his hard-won knowledge about design principles and techniques that contribute toward success in robotics competitions.

Win ing Design!unlocks the secrets of reliable design using LEGO MINDSTORMS EV3. You'll learn proven design patterns that you can employ for common tasks such as turning, pushing, and pulling. You'll reduce and compensate for variation in performance from battery charge levels and motor calibration differences. You'll produce designs that won't frustrate you by not working, but that will delight you with their reliable performance in the heat of competition. 

Good design is about more than just the hardware. Software counts for a lot, andWinning Design! has you covered. You'll find chapters on program design and organization with tips on effective coding and documentation practices. You'll learn about master programs and the needed flexibility they provide. There's even a section on presenting your robot and software designs to the judges.

Winning Design! is the book you need if you're involved in competitions such as FIRST LEGO League events. Whether coach, parent, or student, you'll find much in this book to make your design and competition experience fun and memorable, and educational. Don't be without this book if you're leading a team of young people as they build skills toward a future in technology.

What You Will Learn

    < i>Build winning robots on a foundation of good chassis design
  • Reduce variability in robot mechanical movements
  • Design modular attachments for quick change during competition
  • Solve navigation problems such as steering, squaring up, and collision detection 
  • M nage software using master programs and other techniques
  • Power your robot attachments via motors and pneumatics

Who This Book Is For

Students, parents, teachers, and coaches involved in LEGO MINDSTORMS EV3 robot design and programming. 


/p>

James J. Trobaugh is an experienced coach and leader in the FIRST LEGO League. He is author of the acclaimed bookWinning Design!, focusing on the physical aspects of LEGO MINDSTORMS robot design. He has been involved with the FIRST LEGO League since 2004 as coach for Team Super Awesome, and as a technical judge at the LEGO World Festival. He is also the FIRST LEGO League Director of the Forsyth Alliance in Forsyth County, Georgia. James started out as a LEGO hobbyist by founding the North Georgia LEGO Train Club in 1998, and has found in LEGO robotics a natural blending of his LEGO hobby and his day job as a software architect. An added bonus is the joy of sharing his love of technology not only with his own children, but with kids in general.


< iv>James J. Trobaugh has a degree in Computer Science and has been working as a software architect for 26 years. He lives in the Atlanta, Georgia area with his two children, Ian and Amy.
James has been involved with FIRST LEGO League since 2004 as a coach for TeamSuper Awesome and as a technical judge at the LEGO World Festival. He was also the FLL director of the Forsyth Alliance in Forsyth County Georgia.

div>James started out as a LEGO hobbyist by founding the North Georgia LEGO Train Club in 1998 and has found that LEGO robotics is a natural blending of his LEGO hobby and his day job as a software architect. The added bonus is the joy of getting to share his love of technology not only with his own children but with kids in general.
Contents at a Glance5
Contents6
About the Author13
About the Technical Reviewer14
Introduction15
Chapter 1: Design Considerations17
Understanding the Rules17
Knowing the FIRST LEGO League Robot Parts Rules18
Studying the Game Mission Rules18
Grouping Missions into Zones19
Tasking the Missions19
Mapping Out the Field20
Working with Constraints and Obstacles21
Field Obstacles22
Environmental Conditions23
The EV3 Software24
Understanding the LEGO MINDSTORMS Hardware25
EV3 Intelligent Brick25
Touch Sensor27
Gyro Sensor27
Color Sensor28
Ultrasonic Sensor28
Large Servo Motor29
Medium Servo Motor29
Beginning the Design Process30
Brainstorming as a Team30
Presenting Your Design31
Drawing Your Design31
Resource Contention32
Summary32
Chapter 2: Chassis Design33
Understanding Basic Design Aspects33
Size33
Power34
Speed34
Batteries34
Finding the Center of Gravity34
Gearing Up38
Spur Gears38
Crown Gears39
Bevel Gears39
Double Bevel Gears40
Worm Gears41
Clutch Gears41
Pulleys42
Knob Wheel43
Gear Ratios43
Getting Your Wheels45
Circumference45
Mounting46
Treads48
Exploring the Most Common Chassis49
Two-Wheeled Robots49
Three-Wheeled Robots50
Four-Wheeled Robots50
Tracked Robots51
Troubleshooting52
Summary53
Chapter 3: Going Straight54
Design Influences54
Wheelbase54
Weight55
Wheel Circumference55
Wheel Support56
Programming to Go Straight58
Move Steering Block59
Move Tank Block59
Custom MyMove Steering Block60
Batteries65
Replaceable Batteries65
Rechargeable Battery Packs66
Helpers66
Wall Following66
Base Jigs70
Tips70
Motor Matching70
Removing Gear Slack71
Troubleshooting72
Summary72
Chapter 4: Consistent Turning73
Turning Designs73
Differential Steering Systems73
Steering Drive Systems75
Calculating Turns76
Single-Wheel Turns76
Dual-Wheel Pivot78
Programming79
Move Steering Block79
Move Tank Block80
Creating a Custom MyPivot Block80
Creating a Custom MyTurn Block82
Gyro Sensor82
Calibrating the Gyro Sensor83
Using the Gyro Sensor to Make a Turn83
Mounting the Gyro Sensor on Your Robot84
Summary84
Chapter 5: Line Following and Detection85
EV3 Color Sensor85
Ambient Light86
Reflective Light86
Color Mode86
Positioning the Color Sensor86
Calibrating the Color Sensor88
Making the Calibration88
Using the EV3 Calibration Block88
Using a Local File90
Viewing the Calibration91
Deleting Calibration Data92
Shielding the Color Sensor92
Line Following93
A Dual-State Example93
Defining More Than Two States94
Implementing a Proportional Algorithm96
Using Dual Color Sensors97
Line Detection98
Finding a Line99
Detecting Color in Lines101
Summary101
Chapter 6: Squaring Up102
Squaring Up102
Squaring Up with Walls102
Passive Wall Squaring103
Interactive Wall Squaring106
Aligning with Lines and Edges108
Summary109
Chapter 7: Collision Detection110
Touch Sensor110
Monitoring the Pressed State110
Detecting the Released State113
Achieving the Bumped State114
Color Sensor115
Ultrasonic Sensor117
Summary118
Chapter