How robots are used and controlled

Part ofDesign and TechnologyMechanical and pneumatic control systems

Key points in robotics

  • robots can handle manufacturing tasks, assist in surgeries, plant and harvest; robotic vacuums clean and in space, Mars rovers collect data

  • robots boost efficiency, enhance safety, and are cost-effective

  • actuators move, sensors provide feedback, and controllers send commands

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How robots are used in society

Yellow robots welding a car body in a car factory
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Robots welding a car body in a car factory
  • Industry: robots are widely used in manufacturing, such as car production, for tasks like welding, painting, and assembly
Yellow robots welding a car body in a car factory
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Robots welding a car body in a car factory
Operating room nurse preparing a surgical robot for laparoscopic surgery
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Nurse preparing a surgical robot
  • Healthcare: surgical robots assist in precise operations, reducing recovery times and improving outcomes
Operating room nurse preparing a surgical robot for laparoscopic surgery
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Nurse preparing a surgical robot
NASA’s Curiosity Mars rover selfie in front of Mont Mercou on MarsImage source, NASA/JPL-Caltech/MSSS
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NASA’s Curiosity Mars rover selfie in front of Mont Mercou on Mars
  • Space exploration: robots like the Mars rovers collect data and perform tasks in environments too harsh for humans
NASA’s Curiosity Mars rover selfie in front of Mont Mercou on MarsImage source, NASA/JPL-Caltech/MSSS
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NASA’s Curiosity Mars rover selfie in front of Mont Mercou on Mars
robotic vacuum cleaner working in living room
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A robot vacuum cleaner working

Home: robotic vacuum cleaners and smart home devices automate household chores

robotic vacuum cleaner working in living room
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A robot vacuum cleaner working
Agricultural robots working in vegetable greenhouse
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Agricultural robots planting seedlings
  • Agriculture: robots help with planting, harvesting, and monitoring crops, increasing efficiency and reducing manual labour
Agricultural robots working in vegetable greenhouse
Image caption,
Agricultural robots planting seedlings
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Why use robots

  • efficiency: robots can work faster and more accurately than humans, performing repetitive tasks without fatigue
  • safety: robots can operate in dangerous environments, such as handling hazardous materials or exploring disaster zones, reducing the risk to human workers
  • cost-effectiveness: although expensive to set up, robots can save money in the long run by reducing labour costs and increasing productivity
  • precision: robots can perform tasks with a high degree of accuracy, which is crucial in fields like surgery and electronics manufacturing
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How to control robotic movement

  • actuators: devices like motors and solenoids that convert energy into movement.
  • sensors: provide feedback to the robot about its environment, helping it to navigate and perform tasks accurately.
  • controllers: the ‘brain’ of the robot, which processes information from sensors and sends commands to actuators to perform specific actions.
Electric motor on white background
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An electric motor actuator
Small electric solenoid on white background
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Small electric solenoid actuator
Robot hand with index finger touching a human hand wearing a controller
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Robot hand controlled by wearable controller
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Test yourself

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