Older blog entries for jwp9447 (starting at number 48)

Robot Skier Kills the Bunny Hills, Not Ready For Black Diamond

While it lacks the subtle charm of Alberto Tomba, this robot is just as much at ease flying down a slalom course. Designed by Bojan Nemec of the the Jozef Stefan Institute in Slovenia, the robot utilizes two computers to stay upright and pointed downhill.


The upper part of the robot contains a USB camera, a GPS system and the computer that processes the information from those sources to keep the robot heading in the right direction. The lower portion of the robot contains a computer that controls the legs, and the gyroscope that keeps the robot balanced.

Nemec created the robot to test ski equipment, and to help model virtual reality skiing simulations. So far, Picabo Street can rest easy, as the robot can't even ski in a straight line. In fact, Nemec doesn't think the robot will beat a human in the next five years.

To further assuage your fears of a metal athlete taking home the gold at the Winter Olympics, here's a blooper reel that proves something falling down on a ski slope is always funny, whether it be man or machine.

[via IEEE Spectrum]

Syndicated 2009-10-20 15:59:47 from Popular Science - robotics

Tiny Fire Spy Recon Bot Lets Firefighters See Inside The Blaze

If knowing is half the battle, then firefighters waging war on a blaze start at a serious disadvantage. A lack of information concerning what’s going on inside a fire means firefighting personnel often must speculate which way the fire is moving, where the hottest spots are, and most importantly, where people might be trapped by the flames. The Fire Spy Robot hopes to tip the scales back in firefighters’ favor by providing valuable intel from inside infernos even while helping to extinguish them.


Developed by South Korean firm Hoya, the remote-controlled Fire Spy can go places firefighters can't safely reach, beaming back images and sounds while relaying temperature, smoke and air quality data to firefighters over 50 yards away. It’s not a simple snapshot either: Fire Spy can roam a burning structure for up to half an hour, pushing through temperatures of up to 320 degrees Fahrenheit at a speed of one foot per second. Measuring just 12.5 cm in diameter and weighing just under four-and-a-half pounds, Fire Spy can search for survivors in tight spaces while surviving falls of up to six feet.

Using its onboard light and camera, Fire Spy’s main function is to precisely locate people trapped in burning structures so live firefighters spend less time searching for them. The data also provides firefighters critical information about safe routes in and out of a building so they can develop the best possible rescue plan. But like all good reconnaissance drones, Fire Spy can also join the fight, towing a hose and spraying water as it explores a blaze.

Of course, some fires are too big for the tiny Spy, so another South Korean firm, DRB Fatec, has developed its own larger firefighting robot. At nearly 3 feet tall, it can withstand temperatures up to 920 degrees Fahrenheit for an hour or more. Between the two of them, firefighters may soon have a one-two punch that delivers them the upper-hand when the heat is on.


[PhysOrg]

Syndicated 2009-10-08 17:58:12 from Popular Science - robotics

Physics: The First Step of Robotics-1(Other Kinds of Energy)

Physics: The First Step of Robotics-1(Other Kinds of Energy)

Everyone knows that physics is the basics for robotics. So today lets learn more about other energy that we can see during our lives.

Friction:
Friction is a energy that disturbs a objects motion. But why do they happen? Every objects are made atoms, which is the smallest particle that makes up a object. But this is not the end. Atoms combine to make molecules, which is the combination of atoms that has the object’s property. When molecules meet, they pull each other which makes friction!
F=μN is the formual, μ is a unit that measure how a object surface is rough or soft. And N means the objects weight.

(Example: when we walk, run, everyday life)

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Elastical Energy: Elastical energy is a energy that happens when a object is very elastic. F=KX is the mathematical formula for measuring it.
K represents how and object is elastic. And also X represents the length of how much the object became pressurized or became long.
(Example: rubber, spring)

Syndicated 2009-10-07 13:54:55 from Mickey's Blog

Physics: The First Step of Robotics-1(Mechanical Energy)

Physics: The First Step of Robotics-1(Mechanical Energy)

As you know, physics is the most important thing we have to know to do robotics. So first, lets talk about ‘mechanical energy’.

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Kinetic Energy:
This is a energy that occurs when a object moves.
It’s mathematical formula is E=1/2mv2. ‘M’ stands for mass, and ‘V’stands for velocity or speed. It mearsured in Joules or ‘J’, maded after the physicist “Joules”.

(Examples: A running man, trains, buses, cars, planes, rockets)

Potential Energy:
This energy occurs due to the height of an object. If I am in high above
Mt. Everest, that means I have potential energy. It’s mathematical formula is E=9.8mh. ‘M’ stands for mass, and ‘h’ stands for height. It mearsured in Joules or ‘J’, maded after the physicist “Joules”.

(Example: In above a building, tower, mountain, inside a flying plane)

Mechanical Energy:
This energy is measured in ‘kinetic energy+potential energy’ or
‘1/2mv2+9.8mh’. Mechanical energy is very useful in our lives. Let solve this question.
—A ball is about to fall down and collide with the ground. The ball fell down at the height of 100 meters. Calculate the velocity or speed of the ball when it collides with the ground.
A: First we don’t know the mass of the ball. So lets just skip that one.
When the ball fell at the height of a 100m, the kinetic energy is 0J because it didn’t move, and the potential energy is 9.8*100 so its 980J. So the mechanical energy at this point is 980J+0J so its 980J!

But when the ball fell, the potential energy gets smaller because the height is getting low. While since the ball is gaining speed, it gains more kinetic energy! So at any point of the route where the ball is falling, the mechanical energy is 980J!

When the ball collides with the earth, we already knowe that the mechanical energy is 980J. And since the height is 0 meters, the potential energy is oJ. So this means 1/2v2+9.8h=980, the potential energy is 0J, so
1/2v2=980.
——-Velocity= About 44m/second

Thank You!!!!!!

Syndicated 2009-10-05 12:03:06 from Mickey's Blog

Physics: The First Step of Robotics-1(Mechanical Energy)

As you know, physics is the most important thing we have to know to do robotics. So first, lets talk about 'mechanical energy'.

Image and 
video hosting by TinyPic

Kinetic Energy: This is a energy that occurs when a object moves. It's mathematical formula is E=1/2mv2. 'M' stands for mass, and 'V'stands for velocity or speed. It mearsured in Joules or 'J', maded after the physicist "Joules".

(Examples: A running man, trains, buses, cars, planes, rockets)

Potential Energy: This energy occurs due to the height of an object. If I am in high above Mt. Everest, that means I have potential energy. It's mathematical formula is E=9.8mh. 'M' stands for mass, and 'h' stands for height. It mearsured in Joules or 'J', maded after the physicist "Joules".

(Example: In above a building, tower, mountain, inside a flying plane)

Mechanical Energy: This energy is measured in 'kinetic energy+potential energy' or '1/2mv2+9.8mh'. Mechanical energy is very useful in our lives. Let solve this question. ---A ball is about to fall down and collide with the ground. The ball fell down at the height of 100 meters. Calculate the velocity or speed of the ball when it collides with the ground. A: First we don't know the mass of the ball. So lets just skip that one. When the ball fell at the height of a 100m, the kinetic energy is 0J because it didn't move, and the potential energy is 9.8*100 so its 980J. So the mechanical energy at this point is 980J+0J so its 980J!

But when the ball fell, the potential energy gets smaller because the height is getting low. While since the ball is gaining speed, it gains more kinetic energy! So at any point of the route where the ball is falling, the mechanical energy is 980J!

When the ball collides with the earth, we already knowe that the mechanical energy is 980J. And since the height is 0 meters, the potential energy is oJ. So this means 1/2v2+9.8h=980, the potential energy is 0J, so 1/2v2=980.

-------Velocity= About 44m/second

Thank You!!!!!!

1 Oct 2009 (updated 22 Oct 2009 at 13:49 UTC) »

Korea’s First Humanoid Robot Capable to Walk: Hubo!!!

Korea’s First Humanoid Robot Capable to Walk: Hubo!!!

Hey Guy? Hope you are interested in
humanoid robots. Hubo
can’t climb the stairs but its
movement of its fingers,
the physical intelligence
and physical force is great!
Lets watch some video!

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There is a same model but different robot. Meet ‘Albert

Hubo’!!!

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3568527611236922218?l=21- robotics.blogspot.com

Humanoids are great! In this project we will do a research
about how humanoids walk by using physics. By using video
cameras, computers, and technology, we will find out the
physical movement of human!

Syndicated 2009-10-01 11:28:42 from Mickey's Blog

Computer Animation Graphic of KSMB-2

Computer Animation Graphic of KSMB-2

I am here to share my lastest projects. I am building a
missionbot named KSMB-2. KSMB-1 was a disaster! The one
of the rechargable battery exploded during a test! I was
because of the weight and pressure of the robot! I hope
KSMB-2 will be a great robot of my project!

The Lastest DC Motor

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The Lastest Servo Motor

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The Lastest LED Lighter

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Wait for my KSMB-2! I sended 40$ on my robot! I hope
it
will be cool!

Syndicated 2009-09-27 12:14:46 from Mickey's Blog

Golem’s group V.S MIT-Robotic Car!

Golem’s group V.S MIT-Robotic Car!

According to the science magazine ‘Popular Science’
MIT
researchers and the Golem’s Group researchers made a
robotic car. Capable of driving alone with a computer
while the driver rest! Well the method of doing this thing
is different.

The Golem’s Group:

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It navigates it’s place my using the GPS satellite. It
uses light recieving sensor to know when to stop. The
problem is the price is much higher. It uses Lithum
Batterys. And it can’t work if the signals do not come.

MIT:

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It navigates it’s place my using high laser cameras.
It
takes sensitive picture of nearby buildings signs, and
measure topography of moutains and hills! It uses light
recieving sensor to know when to stop, like the Golem’s
Group. It uses Hydrogen fuel Cell, so no pollution is done
to the Earth.
It can go anywhere!!!

See this picture for clear view!

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Thank You!!!

Please certify me!!!

Syndicated 2009-09-27 12:03:03 from Mickey's Blog

Computers: The First Generation of Robots!

Computers: The First Generation of Robots!

Computers which started over 100 years ago
was
made
because of war. But now computers are used for education,
networking, research projects, and everything. In his
article I will show you all parts of the computer!

The Screen
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The screen is just a computer screen that show what
the
computer is doing inside there circuits. There are lots of
ways how the computer sreen shows its screen. The most
common is light shooters. Inside the screen there are lots
of small small small light shooters the shoot different
wavelength of light what we see are color. There are also
plasma and commpress LEDs.

The Ram
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The ram, which is inside the computer is a memorizing chip.
When the computer is on, the data you should save in your
computer goes to the ram and be saved. But the ram loses
its data when the computer is off. So while the computer
is shutting down it sends its data to the hardrive. But
more rams means more smarter the computer is!

CPU
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This is a place where most of the computers work
should be
sended. The CPU can calculate numbers, recognize color,
and send and receive data. CPU are measured in mHZ. More
mHZ means more data that the computer can process.

Mainboard
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This circuit is where all electrical signals pass
through
the right direction. Ram, CPU, Hard Disk, the sreen is all
connected to the mainboard.

Hard Disk
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This disk is contains with 4~6 metal recording disks.
All
of the programs, documents are all here in the hard disk.
70~100 GB are capable to be recorded!

Syndicated 2009-09-27 11:59:38 from Mickey's Blog

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