Mar 22, 2012 - SPACE ROBOTICS-1 - authorSTREAM Presentation. PowerPoint Presentation: The controller process the information from the sensors.

Space robotics Amazing wow ppt • 1. LIFE SKILLS PRESENTED BY STEVEARMSTRONG ROLLNO:59 Department: ME PRESENTED TO Mr.Sreelal.M Lecturer of ME COLLEGE OF ENGINEERING PERUMON SPACE ROBOTICS GROUP 9 • OUTLINES  ABSTRACT  INTRODUCTION  OBJECTIVES  HISTORY OF SPACE ROBOTICS  LAWS OF ROBOTICS  HOW ROBOTS WORK IN SPACE  ROBOT COMPONENTS  New generation Space Robots.  Key Technologies used in Space Robots.

 Types of Space Robots.  Examples of Space Robots  Issues in Space Robotics  Mineralogy and Robotics  Recent Missions.  Future Missions.  ADVANTAGES  DISADVANTAGES  Future Scope of Space Robotics  CONCLUSION  REFERENCE • ABSTRACT ● Robots play a vital role in exploring the hostile environment of outer space ● Today there is lot of interest in this field and a separate branch of technology 'robotics' has emerged. ● The technology to substitute or subsidise the manned activities in space is called space robotics. ● Various applications of space robots are the inspection of a defective satellite, its repair, or the construction of a space station and supply goods to this station and its retrieval etc.

• INTRODUCTION  “SPACE”, the word itself signifies something infinite.  Space travel has always been dangerous and any unexpected event can cause death.  It is here that the robots play a huge role and help mankind in research process. • The space environment represents one of the most challenging applications of robotics.  Robotics is a field that has been magnified by its association to space research. The most important thing to note is that the scale of success in space systems is same as that for biological systems i.e., “SURVIVAL OF THE FITTEST” • WHAT IS SPACE ROBOTICS?

 Space Robotics is the development of machines for the space environment that perform Exploration, or to Assemble/Construct, Maintain, or Service other hardware in Space.  Humans generally control space robots locally (e.g. Space Shuttle robotic arm) or from a greatdistance (e.g. Mars Exploration Rovers) • “Local” control Spacecraft Arm Remotely controlled Space Robot “Mars Rover” • OBJECTIVES  Perform tasks less expensively, sooner, and with less risk or more delicate 'touch' than with human astronauts  Go where people can’t go (within reason), and for long duration  Space is a hazardous environment & access to space is expensive  Robots don't need to return to Earth (which can be very costly)  To operate equipments at much higher precision than humans.  Cheaper on a long term basis. • Laws of Robotics  Asimov proposed three “Laws of Robotics”  Law 1: A robot may not injure a human being or through inaction, allow a human being to come to harm.

 Law 2: A robot must obey orders given to it by human beings, except where such orders would conflict with the first law.  Law 3: A robot must protect its own existence as long as such protection does not conflict with the first law. • How Robots Work in Space  Working principle of Space robots are based on the SPA algorithm. SPA stands for sense, plan and action. It is used in built world modules to match and worked accordingly.

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 FLOW CHART: SENSING WORLD MODELLING PLANNING CONTROL EXECUTION • THE ROBOT CONTROL LOOP Output information Move, Speech Text, Visuals Wheels Legs Arms Tracks Speech, Vision Acceleration, Temperature Position,Distance Touch, Force Magnetic field,Light Sound,PositionSense Task planning Plan Classification Learn Process data Path planning Motion planning ThinkSense Act •  A Robot is a collection of controllers, sensors, actuators; radio communication and power supply and each of them are powered by various software’s. ROBOT COMPONENTS • Robot Components  1. Manipulator or Rover: Main body of robot (Links, Joints, other structural element of the robot)  2. End Effecter: The part that is connected to the last joint hand) of a manipulator.

Actuators: Muscles of the manipulators Converting command signals into actions  4. Sensors: To collect information about the internal state of the robot or To communicate with the outside environment. 18 • SENSORS  Sensors provide awareness of the environment by sensing things.Sensors are the core of robots.It is the system that alerts the robots.  Sensing can be in different forms like-  Light  Sound  Heat  Chemicals  Force  Object proximity  Physical orientation/position  Magnetic & Electric Fields  Resistance 19 • End Effectors  In robotics, an end effector is the device at the end of a robotic arm, designed to interact with the environment.  End effectors may consist of a gripper or a tool. The gripper can be of two fingers, three fingers or even five fingers.