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All about Robots and Robotics!


All About Robots


1.1 What is the definition of a 'robot'?

"A reprogrammable, multifunctional manipulator designed to move material, parts, tools, or specialized devices through various programmed motions for the performance of a variety of tasks"
Robot Institute of America, 1979

Obviously, this was a committee-written definition. It's rather dry and uninspiring. Better ones for 'robotics' might include:

Force through intelligence.
Where AI meet the real world.

Webster says: An automatic device that performs functions normally ascribed to humans or a machine in the form of a human.


[1.2] Where did the word 'robot' come from?

The word 'robot' was coined by the Czech playwright Karel Capek (pronounced "chop'ek") from the Czech word for forced labor or serf. Capek was reportedly several times a candidate for the Nobel prize for his works and very influential and prolific as a writer and playwright. Mercifully, he died before the Gestapo got to him for his anti-Nazi sympathies in 1938.

The use of the word Robot was introduced into his play R.U.R. (Rossum's Universal Robots) which opened in Prague in January 1921. The play was an enormous success and productions soon opened throughout Europe and the US. R.U.R's theme, in part, was the dehumanization of man in a technological civilization. You may find it surprising that the robots were not mechanical in nature but were created through chemical means. In fact, in an essay written in 1935, Capek strongly fought that this idea was at all possible and, writing in the third person, said:

"It is with horror, frankly, that he rejects all responsibility for the idea that metal contraptions could ever replace human beings, and that by means of wires they could awaken something like life, love, or rebellion. He would deem this dark prospect to be either an overestimation of machines, or a grave offence against life."
[The Author of Robots Defends Himself - Karl Capek, Lidove noviny, June 9, 1935, translation: Bean Comrada]

There is some evidence that the word robot was actually coined by Karl's brother Josef, a writer in his own right. In a short letter, Capek writes that he asked Josef what he should call the artifical workers in his new play. Karel suggests Labori, which he thinks too 'bookish' and his brother mutters "then call them Robots" and turns back to his work, and so from a curt response we have the word robot.

R.U.R is found in most libraries. The most common English translation is that of P. Selver from the 1920's which is not completely faithful to the original. A more recent and accurate translation is in a collection of Capek's writings called Towards the Radical Center published by Catbird Press in North Haven, CT. tel: 203.230.2391

The term 'robotics' refers to the study and use of robots. The term was coined and first used by the Russian-born American scientist and writer Isaac Asimov (born Jan. 2, 1920, died Apr. 6, 1992). Asimov wrote prodigiously on a wide variety of subjects. He was best known for his many works of science fiction. The most famous include I Robot (1950), The Foundation Trilogy (1951-52), Foundation's Edge (1982), and The Gods Themselves (1972), which won both the Hugo and Nebula awards.

The word 'robotics' was first used in Runaround, a short story published in 1942. I, Robot, a collection of several of these stories, was published in 1950. Asimov also proposed his three "Laws of Robotics", and he later added a 'zeroth law'.

  • Law Zero:
    A robot may not injure humanity, or, through inaction, allow humanity to come to harm.
  • Law One:
    A robot may not injure a human being, or, through inaction, allow a human being to come to harm, unless this would violate a higher order law.
  • Law Two:
    A robot must obey orders given it by human beings, except where such orders would conflict with a higher order law.
  • Law Three:
    A robot must protect its own existence as long as such protection does not conflict with a higher order law.

An interesting article on this subject:

Clarke, Roger, "Asimov's Laws for Robotics: Implications for Information Technology", Part 1 and Part 2, Computer, December 1993, pp. 53-61 and Computer, January 1994, pp.57-65.

The article is an interesting discussion of his Laws and how they came to be in his books, and the implications for technology today and in the future.


[1.3] When did robots, as we know them today, come into existence?

The first industrial modern robots were the Unimates developed by George Devol and Joe Engelberger in the late 50's and early 60's. The first patents were by Devol for parts transfer machines. Engelberger formed Unimation and was the first to market robots. As a result, Engelberger has been called the 'father of robotics.'

Modern industrial arms have increased in capability and performance through controller and language development, improved mechanisms, sensing, and drive systems. In the early to mid 80's the robot industry grew very fast primarily due to large investments by the automotive industry. The quick leap into the factory of the future turned into a plunge when the integration and economic viability of these efforts proved disastrous. The robot industry has only recently recovered to mid-80's revenue levels. In the meantime there has been an enormous shakeout in the robot industry. In the US, for example, only one US company, Adept, remains in the production industrial robot arm business. Most of the rest went under, consolidated, or were sold to European and Japanese companies.

In the research community the first automata were probably Grey Walter's machina (1940's) and the John's Hopkins beast. Teleoperated or remote controlled devices had been built even earlier with at least the first radio controlled vehicles built by Nikola Tesla in the 1890's. Tesla is better known as the inventor of the induction motor, AC power transmission, and numerous other electrical devices. Tesla had also envisioned smart mechanisms that were as capable as humans. An excellent biography of Tesla is Margaret Cheney's Tesla, Man Out of Time, Published by Prentice-Hall, c1981.

SRI's Shakey navigated highly structured indoor environments in the late 60's and Moravec's Stanford Cart was the first to attempt natural outdoor scenes in the late 70's. From that time there has been a proliferation of work in autonomous driving machines that cruise at highway speeds and navigate outdoor terrains in commercial applications.

Articles on the history of personal robots:

What ever happened to ... Personal Robots? by Stan Veit The Computer Shopper, Nov 1992 v12 n11 p794(2)

What ever happened to ... Personal Robots? (part 2) by Stan Veit Computer Shopper, April 1993 v13 n4 p702(2)

NEW PERSONAL ROBOT IS NOT JUST HELPFUL; IT'S LOVABLE


        "A prototype research robot designed to live with you at home asa useful and lovable partner." NEC
        Robots are commonplace for industrial applications, but robots for the home still seem like science fiction. NEC researchers, however, have demonstrated that all the technologies are in place for a personal robot that home users can learn to love.
        Drawing on advanced technologies for pattern recognition, voice recognition, mechatronics and Internet communications, NEC has developed a prototype robot that can recognize individual faces, understand verbal commands, and move smoothly around the home, avoiding such obstacles as tables and chairs.
When summoned, the companionable robot rolls up to the caller and asks 'Can I help you?' It can turn household appliances on or off and adjust channel/volume controls on TVs and stereos. The robot can also store verbal messages and deliver them to the appropriate person, send the alert when e-mail arrives and even read incoming messages aloud. When the home is unattended, the robot can become a security device, recording movement and sending video messages to a user-specified address.
Left to its own devices, the robot takes a nap or wanders quietly around the home. It can also amuse itself, circling and humming.
        Since most of the robot's functions are based on independent software, expansion is a simple matter of adding new software and hardware modules. NEC has not yet decided the schedule for bringing its personal robot to market.

What is a personal robot?

        Computers may be indispensable nowadays. But a lot of us don't think they're "friendly", and some of us can't use them at all. People who can't figure out how to use computers are missing out on many chances to make daily life more convenient, comfortable and fun.
        NEC is conducting research on a personal robot to really break through the barrier between people and computers. Our aim is to develop a robot companion who will become like a family member - dependable,kind,considerate but at times maybe a little cranky...just human like the rest of us.
        R100 is a prototype robot developed at NEC's Central Research Laboratories. Using visual recognition, voice recognition, mechatronics and Internet communication technologies, the robot can recognize individual faces, understand verbal commands, and move smoothly around the home, avoiding such obstacles as tables and chairs.
        The R100 can recognize different members of the family. When called, it rolls right up and asks what it can do for you.
        With its built-in, full-time Internet connection, your R100 knows when you have email. Equipped with cameras and microphones, the R100 can even record video messeages and replay video messages on the TV. The R100 can turn your TV, lights and other appliances on/off at your request. When you're away from home, the robot looks after your home. If the robot comes across somebody, it can instantly record what it sees and send it to you as a video message to an e-mail address you specify. When it has nothing to do, the R100 will wander around the home. If it meets someone, it will say "Hello" or "Let's have some fun together." Sometimes it will just turn round and round, humming a tune to itself. Of course, all these features can also be turned off, if you'd like your R100 to sit quietly in a corner until you call it.

Remember
        The R100 can remember faces, understand spoken commands and respond verbally.
Sees
        Obstacle detection. The robot uses stereo-video processing to identify (in real-time) the floor plane and objects resting or moving on it. It maps the obstacles and moves smoothly to avoid them.
Finds and follows people
        Video-camera eyes enable the robot to identify and remember faces. It can also be programmed to associates names with faces and greet family members appropriately. If you are walking while you talk to it, the robot will turn to face and follow you as you move.
Hears
        Detection of sound sources. he robot uses three built-in microphones to detect the direction from which a voice or sound is coming. It turns to face you when you call.
        Speech recognition Within the range of words stored in its memory, the robot can understand what you say.
Talks
        The robot has a built-in speaker, so it can talk to you or read your email aloud. It can even dance while it plays music.
Walks
        Stereo-video image processing enables the robot to walk around rooms at a speed of 60cm/second. With its ultra-sonic sensors, the robot can also stop or avoid obstacles that suddenly appear in its path.
Feels
        If you tap, stroke or press the robot's head, a built-in sensor accurately gauges the quality of your touch. It can tell if you are being gentle or forceful and respond accordingly.
Senses the environment
        The robot will behave in accordance to the temperature, brightness, time of day and its own battery capacity.
        External PC for voice and image recognition processing At present, image and speech recognition are performed by a personal computer which is connected to the robot via a radio link. In future versions, however, the robot will carry all its computing power on-board.
Software
        The software consists of modules such as a mechanical controller, image recorder, voice recognition, sensors, movement pattern library, feeling models and a decision-maker for movements. All these modules are independent and easily upgradeable. New functions can also be inexpensively added via software.



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