Unit 7

1.  Ответьте на следующие вопросы.

1. When did robots appear?

2. What are the main laws of robotics?

3. Why do people want to construct robots?

2. Прочитайте и переведите текст

Building robots involves the development of a wide range of skills, including creative thinking, design, mechanics, electronics and programming - all of which are highly valued in industry.

What are robots?

Nowadays, the word robot is often applied to any device that works automatically or by remote control, especially a machine (automaton) that can be programmed to perform tasks normally done by people.

Before the 1960s, robot usually meant a manlike mechanical device (mechanical man or humanoid) capable of performing human tasks or behaving in a human manner. Today robots come in all shapes and sizes.

What many robots have in common is that they perform tasks that are too dull, dirty, delicate or dangerous for people. Usually, we also expect them to be autonomous, that is, to work using their own sensors and intelligence, without the constant need for a human to control them. Looked at this way, a radio controlled aeroplane is not a robot, nor are the radio controlled combat robots that appear on television. However, there is no clear dividing line between fully autonomous robots and human-controlled machines. For example, the robots that perform space missions on planets like Mars may get instructions from humans on Earth, but since it can take about ten minutes for messages to get back and forth, the robot has to be autonomous during that time.

The term robotics was coined in the 1940s by science fiction writer Isaac Asimov. In a series of stories and novels, he imagined a world in which mechanical beings were mankind's devoted helpmates. They were constrained to obey what have become known as Asimov's Laws 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 except when such orders 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.

What was the first practical robot?

A prototype industrial robot arm named Unimate (designed by George Devol and Joseph Engelberger) was sold to General Motors in 1959. It plucked hot automobile parts out of a die-casting machine and quenched them in water.

The 1960s and 1970s saw a revolution in manufacturing as robots replaced humans for many repetitive jobs. However, these robots were not intelligent by today’s standards. Usually they were programmed by humans training their movements, and they had very little decision-making capabilities. There are still many robots like this in factories today, but the trend is towards more intelligent general-purpose robots that can do more than just paint a panel or screw in a bolt.

What can't robots do?

It is very difficult to give a robot the ability to perform a wide variety of tasks, move around in cluttered surroundings, recognise objects in the ‘real world’, understand normal speech, and think for itself. These are exciting areas of current research in robotics and artificial intelligence.

Spoken language understanding involves two primary component technologies: speech recognition (SR), and natural language (NL) understanding.

Getting robots to ‘see’ is a complicated problem . Although it is easy to put a camera on a robot, it is much more difficult to get the robot to understand what is in an image. Most humans have miraculously good vision. We are able to resolve great ambiguity in scenes. It has proved much more difficult to get robots to understand what is in their universe, and machine vision remains one of the big unsolved problems in robotics research.

There are other problems in robotics that make progress slow. For example, your body is covered with skin, and this contains millions of sensors that allow you to do many fantastically precise things. For example, try typing at a computer with gloves on. The lack of touch feedback will make it very difficult. Also your muscles enable you to have very fine control. Even if you are rather clumsy, you are probably much better at manipulating objects than the average robot.

Rapid advances are being made in robotic control systems, artificial intelligence, neural networks, and in the miniaturisation, sophistication and reliability of electronic circuitry, sensors and actuators. These are all contributing to a steady increase in the capabilities of robots. Robots currently under development may become widely used in the food, clothing, nuclear and offshore industries, healthcare, farming, transportation, mining and defence.

3.Прочитайте следующие слова

Humanoid, aeroplane, quench, recognition, miraculously, ambiguity, precise, muscle, average, neural, actuators

4. Переведите следующие слова и составьте с ними предложения

remote control, helpmate, constrain , decision-making capabilities , general-purpose robots, ambiguity , sophistication, offshore industries, coin, pluck, die-casting machine