Robotics

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Robotics

  1. 1. FAIZAN Q MUQHAL ANDM.FAHD UN NABI KHAN X-O USMAN PUBLIC SCHOOL
  2. 2. What is a robot?Definition:Alternate definition:“A robot is a one-armed, blind idiot with limited memoryand which cannot speak, see, or hear.”
  3. 3.  What is hard for humans is easy for robots.  Repetitive tasks.  Continuous operation.  Do complicated calculations.  Refer to huge data bases. What is easy for a human is hard for robots.  Reasoning.  Adapting to new situations.  Flexible to changing requirements.  Integrating multiple sensors.  Resolving conflicting data.  Synthesizing unrelated information.  Creativity.
  4. 4.  Dangerous  Space exploration  chemical spill cleanup  disarming bombs  disaster cleanup Boring and/or repetitive  Welding car frames  part pick and place  manufacturing parts. High precision or high speed  Electronics testing  Surgery  precision machining.
  5. 5.  How do our sensors work?  eyes  brain How do we integrate sensors? How does our muscular-skeletal system work?  How do we grab and hold an object? How does our brain process information? What is nature of intelligence? How do we make decisions?
  6. 6.  Action  Stationary base  Mobile Sensors Intelligence Power supply Robert Stengel, Princeton Univ.
  7. 7.  Actuators  pneumatic  hydraulic  electric solenoid Motors  Analog (continuous)  Stepping (discrete increments) Gears, belts, screws, levers Manipulations
  8. 8.  Pick and place  Moves items between points. Continuous path control  Moves along a programmable path Sensory  Employs sensors for feedback
  9. 9.  Simple joints (2D)  Prismatic — sliding along one axis  square cylinder in square tube  Revolute — rotating about one axis Compound joints (3D)  ball and socket = 3 revolute joints  round cylinder in tube = 1 prismatic, 1 revolute Degrees of freedom = Number of independent motions  3 degrees of freedom: 2 translation, 1 rotation  6 degrees of freedom: 3 translation, 3 rotation
  10. 10.  Legs Wheels Tracks Crawls Roll
  11. 11.  Optical  Laser / radar  3D  Color spectrum Pressure Temperature Chemical Motion & Accelerometer Acoustic  Ultrasonic
  12. 12.  Uses sensors for feedback  Closed-loop robots use sensors in conjunction with actuators to gain higher accuracy – servo motors.  Uses include mobile robotics, telepresence, search and rescue, pick and place with machine vision.
  13. 13.  Open loop, i.e., no feedback, deterministic  Instructions  Rules Closed loop, i.e., feedback  Learn  Adapt

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