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Robot Speed and Accuracy Using a Light
and
Touch Sensor
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Researched by Boston P.
2004-05
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PURPOSE
The purpose of this experiment
was to determine the effect of various computer programs on a robot’s
speed and accuracy.
I became interested in robots
many years ago and now I want to know how they actually work.
The information gained from this
experiment might help factory owners and managers who use robotic
devices to understand that a robot’s software makes a difference in its
performance.
HYPOTHESIS
My hypothesis was that the touch
sensor would have more speed and accuracy than the light sensor would.
I based my hypothesis on what it
said in World Book Encyclopedia 1992. Most robots use touch
sensors to know when to stop without smashing something or not going
far enough.
EXPERIMENT DESIGN
The constants in this study
were:
-Task robot was given
-Stopwatch used
-Location of experiment
The manipulated variable was the
various computer programs.
The responding variable was the
time it took for the robots to do the tasks.
The responding variable was
measured by timing the robot with a stopwatch.
MATE
| QUANTITY |
ITEM DESCRIPTION |
1
|
Light sensor |
1
|
touch sensor |
| 1 |
robot |
3
|
robotic programmings |
| 1 |
stopwatch
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PROCEDURES
1. Build robot using legos.
2. Equip robot with light sensor and the 5-step programming.
3. Make the robot do the task and time it with the stopwatch.
4. Record time it took to for robot to finish task.
5. Repeat step 2 using the 6-step programming.
6. Repeat steps 3-4.
7. Repeat step 1 using the 7-step programming.
8. Repeat steps 3-4.
9. Repeat step 2 using the touch sensor.
10. Repeat steps 3-8.
RESULTS
The original purpose of this experiment was to find which type of
programming would have better speed and accuracy.
The results of the experiment were that the light sensor did better
than a touch sensor in both speed and accuracy.
S0ee the table and graph below.
CONCLUSION
My hypothesis was that the touch sensor would have had more speed and
accuracy than the light sensor could.
The results indicate that this hypothesis should be rejected.
Because of the results of this experiment, I wonder if I were to try
using a different kind of sensor such as weight sensors or pressure
sensors and see which one would be better than the light sensor?
If I were to conduct this project again I would use more tasks and use
more than 2 different sensors. Also I have an idea about using 2
robots instead of one. I would have used both of them at the same
time and tried to find which of them would be faster and I think that
timing them this way would be more accurate.
RESEARCH REPORT
Introduction
I did this for my project because it could help all the factory owners
and managers know what type of programming would be better to use for
production.
History of robotics
Robots are mechanical objects that can do things that humans could not
do. The programmings that robots have are very much similar to
human like intelligence.
The robot idea came from the ancient Greek and Egyptian
civilizations. An inventor from the first century A.D.
(Hero of Alexandria) invented a machine that would automatically open
doors to a temple when a priest would light a torch or pull a switch in
the altar. In the late periods of the middle ages, the
Renaissance, and the 17th & 18th centuries, interest in robot-like
programming and mechanisms turned mostly to automations (devices that
imitate human and animal appearance and activity but do no useful or
helpful tasks). During the 1950’s and the 1960’s, advances in the
field’s of automation, robotics, and computer science led to the
development of experimental robots that could imitate a large range of
human-like activities, including self-controlled, self-regulated, and
self-propelled movement (either on wheels or legs), the ability to
sense and manipulate objects, and the ability to select a course of
action on the basis of conditions around them.
In 1954, George Dovol designed the first programmable robot in the
United States. He called the robot Universal Automation, which
was later, shortened to Unamation, which also became the name of the
first robot company.
James Watt and the Watt Generator
Scottish engineer James Watt made the first self-correcting control to
find the speed of a steam engine. It helps the feedback principle
of a servomechanism, link output to input which is the basic
programming.
Human like Robots
Research into human-like characteristics is leading to the development
of robots that handle objects with more sensitivity. Cog is one
of the robots that has this programming. Cog has bifocal vision
to make picking up fragile items ,like an egg, easier. It’s eye sensors
detect size, weight, and shape to know how to hold the weight, and
shape to know how to hold the item without crushing or dropping it.
Computer Visions
Working to build computers that find.
patterns, objects in visual images. A visual system first
takes out parts of the picture like. Edges and textures then use rules
to identify things. For example; systems can identify military
items in aerial pictures.
Summary
Robots have been helping man for over 100 years and have improved our
lives. Robots are all different in many ways and people still
haven’t found all of the abilities a robot can master.
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BIBLIOGRAPHY
Bergan, Mark. Robots. China: Franklin, Watts, 2001.
P. 19-20
Devol, George. “Robotics Engineers, and Technicians,”
Encyclopedia of Careers and Vocational Quidance, 2000
Morgan, Hank. “Robotics,” Encarta Encyclopedia Deluxe, 2001
Stone, Brad. Real World Robots. Newsweek: 3/24/03
Turner, Alan. “Artificial Intelligence,” World Book
Encyclopedia, 2005
Watt, James. "Robotic Watt Generator," Microsoft Encarta,
2001.
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ACKNOWLEDGEMENTS
I would like to thank the following people for helping make my project
possible:
Mrs. Helms for helping me on a lot of my problems in my report.
Mr. Newkirk for finding most of the problems in my report.
And my parents for telling me to keep going.
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