20-04-2011, 10:09 AM
robotics.ppt (Size: 272 KB / Downloads: 154)
Robotics
Where AI meets the real world.
What is a Robot ?
“A re-programmable, multifunctional manipulator designed to move
material, parts, tools, or specialized devices through various programmed
motions for the performance of a variety of tasks.”
A robot must have the following essential characteristics:
Mobility: It possesses some form of mobility.
Programmability: implying computational or symbol- manipulative capabilities that a designer can combine as desired (a robot is a computer). It can be programmed to accomplish a large variety of tasks. After being programmed, it operates automatically.
Sensors: on or around the device that are able to sense the environment and give useful feedback to the device
Mechanical capability: enabling it to act on its environment rather than merely function as a data processing or computational device (a robot is a machine); and
Flexibility: it can operate using a range of programs and manipulates and transport materials in a variety of ways.
Isaac Asimov's Three Laws of Robotics
Law Zero A robot may not injure humanity, or, through inaction, allow humanity to come to harm.
First Law A robot may not injure a human being, or, through inaction, allow a human being to come to harm.
Second Law A robot must obey orders given it by human beings, except where such orders would conflict with the First Law.
Third Law A robot must protect its own existence as long as such protection does not conflict with the First or Second Law.
Construction & Working of the Robot
Mechanical platforms- the hardware base Sensors
Motors
Driving mechanisms
Power supplies
Electronic Controls
Microcontroller systems
Languages
R/C Servos
Pneumatics
Driving High-Current Loads from Logic
Controllers
Sensors
Sensors are the parts that act like senses and can detect objects or things like heat and light and convert the object information into symbols or in analog or digital form so that computers understand. And then Robots react according to information provided by the sensory system
Vision Sensor
Camera
Frame grabber
Image processing unit
Motors
Driving mechanisms
Power supplies
Driving High-Current Loads from Logic
Microcontroller systems
Speed
Size
Memory
A robot system architecture
Artificial Intelligence
What is artificial intelligence?
It is the science and engineering of making intelligent machines, especially intelligent computer programs
Can a machine think?
Appling Robots
Future
Artificial neural networks
Robots which train themselves
Summary
Advantages
Disadvantages
Where gone Asimov’s law?