Automated Systems

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Automated Systems

• Lesson 4 Stationary v Mobile Robots

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By the end of this lesson you will be able to
Lesson 4 Automated Systems

1. Identify what the initials AGV stand for.
2. Identify 2 guidance systems for AGVs.
3. Suggest a suitable guidance system for an AGV
   working in a dirty environment.
4. Suggest a suitable guidance system for an AGV
   working in a clean environment.
5. Explain the term ROM software.
6. Give 2 advantages of using ROM softare.
7. Give 2 disadvantages of using ROM software.
8. Explain why real time processing is essential for
   AGVs.
9. Explain what it means to be an intelligent robot.
10. Explain the impact automation has had on the
    design of the workplace.

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Stationary v Mobile Robots
Lesson 3 Automated Systems

• A stationary robot is fixed in one location in a
  workplace.
• A mobile robot is a robot that can move around a
  workplace.
• Mobile robots are some times called AGVs
  Autonomous Guided Vehicles.
• AGVs are often used in workplaces to fetch and
  carry parts from a warehouse to where they are
  needed

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Mobile Robot Guidance Systems
Lesson 4 Automated Systems

• AGVs need to be have a guidance system to tell
  them how to get from A to B.
• There are 2 types of guidance systems
• light guidance systems
• magnetic guidance systems.

• Which is best?
• Which system is used depends on the
• how messy the workplace is and
• how often the system might need to be changed.

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Interface
Lesson 3 Automated Systems
An interface is needed between a sensor and the
controlling computer. The interface is
required because sensors are analogue yet the
controlling computer understands digital data
only. The interface converts the signals.
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AD and DA Converters
Lesson 3 Automated Systems
An AD converter is the interface that translates
analogue data into digital data.
AD Converter
A DA converter is the interface that translates
digital data into analogue data.
DA Converter
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Questions
Lesson 3 Automated Systems

• Answer the following questions in your jotter.
• Name the part of the automated system that
  control the action.
• Why is a sensor needed?
• List 3 types of sensors and explain what each
  could be used for.
• Explain the term feedback.
• Why is feedback necessary?
• What happens as a result of feedback?
• Explain why a interface is required.
• Draw a diagram of where an interface will be
  positioned in system.
• What is an AD converter?
• What does a DA converter do and why?

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Fun Things To Do
Try programming the Picobot using its
sensor. Try programming Lego Robot cars.

• Robots with a sense of touch
• http//news.nationalgeographic.com/news/2005/08/08
  17_050817_robotskin.html
• Beetles Sensors
• http//news.nationalgeographic.com/news/2003/03/03
  14_030314_secretweapons3.html
• Robot Cars
• http//news.nationalgeographic.com/news/2005/10/10
  06_051006_robot_car_2.html
• Smart Cars
• http//news.nationalgeographic.com/news/2004/05/05
  21_040521_smartcars.html

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