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Robotics and   collision detection
 

Robotics and collision detection

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    Robotics and   collision detection Robotics and collision detection Presentation Transcript

    • * Robotics.Why robotics?Definition of robot.Types of robots.Law of robotics.Components of robots.Advantages.Future prospects.Conclusion.Queries.
    • *The Word Robotics is Used To Collectively Define A Field In Engineering That Covers The Mimicking Of Various Human Characteristics.Sound Concepts in Many Engineering Disciplines is Needed For Working in this Field.It Find Its Uses In All Aspects Of Our Life.
    • * DEFINITION OF A ROBOT• "A reprogrammable, multifunctional manipulator designed to move material, parts, tools, or specialized devices through various programmed motions for the performance of a variety of tasks" Or a simpler version.• An automatic device that performs functions normally ascribed to humans or a machine in the form of a human.
    • * An automatic industrial machine replacing the human in hazardous work. An automatic mobile sweeper machine at a modern home. An automatic toy car for a child to play with. A machine removing mines in a war field all by itself and many more….
    • * THE PURPOSE OF ROBOTS Repetitive tasks that robots can do 24X7. Robots never get sick or need time off. Robots can do tasks considered too dangerous for humans. Robots can operate equipment to much higher precision than humans. May be cheaper over the long term May be able to perform tasks that are impossible for humans
    • *THE PURPOSE OF ROBOTS(cont.) Dirty Tasks  Repetitive tasks  Dangerous tasks Impossible tasks  Robots assisting the handicapped.
    •  It is a field of engineering that covers themimicking of human behavior.. Robotics includes the knowledge of Mechanical,Electronics, Electrical & Computer ScienceEngineering.
    • *The term robotics was coined in the 1940s by science. fiction writer isaac asimov. Asimov‟s Law of Robotics:A robot may not injure a human being, or through inaction , allow a human being to come to harm.A robot must obey the orders given it by human beings excepts where such order would conflict with the first Law.A robot must protect its own existence as long as such protection does not conflict with the first or second Law.
    • * ???Speed.It can work hazardous/dangerous environment.To perform repetitive task.Efficiency.Accuracy.Adaptability.
    • * Mobile robots. Land-based wheeled robot Land-based tracked robot Land-based legged robot Air-based: plane, helicopter, blimp Water-based; boat, submarine Misc. and combination robot Stationary robot (arm, manipulator etc.) Rolling robots.
    • * Autonomous robots  QRIO  AIBO HRP  ASIMO
    • *Remote control robots  Bucket Type  Shovel Type  Arm Type
    • * Virtual robot B.E.A.M
    •  Stationary robots. Use in industry JCB machine
    • *Perceive –Sensors(Touch, Light , Ultrasonic, etc).Make Decisions-Logic(Computation).Take Action –Actuators.Interact-User interface and communication.Power unit
    • * Bumper MOTOR (Sensor) LOGIC InfraredACTUATORS CONTROL Detector LER (Sensor) Bumper MOTOR (Sensor)
    • *Collision avoidance is somewhat different from collision detection.Possible collisions will depend on the shape and size of both the object and robot as well as the position and motion.When making an attempt to avoid an obstacle, there are many decisions to face.
    • *
    • * Structure. Power Source. Actuation. Sensing. Manipulation. Locomotion.
    • *The structure of a robot is usually mostly mechanical and can be called a kinematic chain.The chain is formed of links (its bones),actuators(its muscles),and joints which can allow one or more degrees of freedom.
    • *Suitable Power Supply Is Needed To Run The Motors And Associated Circuitry.Typical Power Requirement ranges from 3Vto 24V DC.220V AC supply must be modified to suit the needs of our machine.Batteries can also be used to run robots.Robots are driven by different motors:- DC motors Stepper Motors Servo Motors
    • *As the name suggests, a motors which uses a DC(Direct Current) power.Can run in both directions.Speed controllable
    • *Used For Measured Rotation.Can Be Held At A Particular Position Of The ShaftIdeal For Many Autonomous Robots Requiring Higher Precision.
    • *Used in closed loop control systems in which work is the control variable.An integral feedback deceive(resolver) or devices (encoder ) are either incorporated within the servo motor or are remotely mounted , often on the load itself.
    • *Actuators are the “muscles” of a robot , the parts which convert stored energy into movement.The most popular actuators are electric motors.
    • *Robots which must work in the real world require some way to manipulates objects ; pick up ,modify, destroy, or otherwise have an effect.Thus the „hands‟ of a robot are often referred to as end effectors ,while the arm is referred to as a manipulator.Some manipulators are:- Mechanical Grippers. vacuum Grippers. General purpose effectors.
    • *It is concerned with the motion of the robot.Robots contains different types of drives:- *Car type . *Skid drive. *Pivot drive. *Articulated drive.
    • *Revolution in medical science and health care systems.New & wide scope in Education & training.A good help in Nuclear industry.Used tremendously in sports activities.Play the role of an efficient assistance in Research and Development sciences.Can very well handle household business.
    • *Scientists say that it is possible that a robot brain will exist by 2019.Vernor Vinge has suggested that a moment may come when computers and robots are smarter than humans. In 2009,some robots acquired various forms of semi- autonomy, including being able to find power sources on their own.The Association for the Advancement of Article Intelligence has researched on this problem.