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Robotics

38 Posts tagged with the sensor tag
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Human beings make tools. Animals make tools. A tool gives an advantage over adversity and guarantees survival. Will the same happen if a robot makes a tool?

 

 

Researchers at ETH Zurich are on a mission to not only have robots make tools, but they are teaching the bots how to use them. Their goal is to simplify the complexity of this type of robot, while at the same time giving it extraordinary capabilities like creating its own parts, fixing itself, and even creating other robots from printed parts and integrated motors.

 

 

So far, their robot consists of a mechanical arm with Hot Melt Adhesive (HMA) capabilities. This means that at the end of the mechanical arm is just a hot glue gun that can be used to create parts layer by layer. In their effort to avoid complexity, it has no manipulator mechanisms, instead it only uses the stickiness of the printed parts to move them and place them.

 

 

The project has only just been started. In a demonstration of their progress, ETH researchers showed that their robot is capable of creating tools and thus performing tasks that it would not be able to do otherwise. It took the robot about an hour, but it was able to create a cup with a handle to transport water, an impressive task for a robot with no hands.

 

 

Next, the team or researchers are working to give the robot perception capabilities to eventually achieve a completely autonomous robot. At the moment, the robot can only create simple shapes in about an hour’s time; a long way away from creating an entire mechanism, but even bots need to take it one HMA layer at a time.

 

Eavesdropper

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My childhood dream is almost a reality, a real life Transformer.


Designed by Kenji Ishida and JS Robotics, the bot houses 22 servos to perform the transformation. In robot form it is based on the widely copied bipedal humanoid platform. You can see these humanoid bots in a lot of competitions in Japan. There is no information on the bot at JS Robotics

 

This bot is the latest in a series by Kenji  Ishida, version 8 to be exact. See version 7 below.



 

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Wilfried Stoll and an engineering team from Festo in Germany have designed a robot that can compose and perform its own music after ‘listening’ to a melody. The robotic system, called Sound Machines 2.0, simulates two violins, a cello, a double bass and a viola with each using only one string. The string is loosened to change notes by an electric DGE drive unit that runs parallel to the string with a pneumatic cylinder that moves a wooden hammer which strikes the string to play the note.

 

To make music the robots first listens to a musician playing a melody over a MIDI capable synthesizer or xylophone that’s connected to a computer where modular synthesizer software processes the signal and sends it to the robots in real-time. The computer actually composes the music in its interpretation with the help of open-sourced software that’s programmed with special algorithms that are derived from John Conway’s Game of Life cellular automaton. Once the computer writes the music it is then pieced out to the robots accordingly. The music is heard through the robots own amplifiers and 40 watt speakers which makes the music sound more spatial with a better sense of depth, as opposed to using one speaker for all 5 robots. While the robots don’t exactly play like the string section of the New York Philharmonic, they do play pretty well even if it sounds like the music from TV show Buck Rogers.

 

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The band (via Festo)

 

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Concept of the crybot (via Stone Aerospace)

 

Exploring other planetary bodies is both costly and risky for human explorers. While money is a big factor in celestial exploration, the time and resources it takes for a human to travel extraplanetary is the biggest factor. How would we get the fuel to travel back to earth? What about food and what toll would it have on human bodies travelling that long, even to our closet neighbor Mars? These are some significant hurdles for us as humans, but not so much so for our mechanical robot friends when it comes to other-world exploration.

 

This is precisely what Stone Aerospace engineers are looking to do with Project VALKYRIE. The project, led by Bill Stone, is a collaborative effort that includes participants from CU, UCSC, LSU and Los Gatos Research to send a robot to explore the oceans on Jupiter’s moon Europa. The robot, called ‘cryobot’, the team will use is a 6 ft by 10 in cylinder that’s equipped with a high-powered fiber-optic 5000 watt laser to cut through Europa’s icy crust enabling the robot to get to the water underneath the surface.

 

The power source for the laser (unknown at this time) will remain on the moon’s surface tethered to miles of fiber-optic cabling, which would allow the robot to navigate the large sections of ocean. Cryobot will also feature an astrobiology sensor that will enable the robot to make an ‘educated’ guess of sorts at taking core samples that might contain life. It will also deploy a series of sensors to collect additional information for future return missions with a payload tailored for that particular mission. NASA has recently given the team $4-million in funding to field-test the autonomous robots capabilities at an Alaskan glacier where it will penetrate the ice at depths of 10 to 50 meters.

 

Final testing will then be done in Greenland where crybot will descend to depths of up to 200 meters using the fiber-optic laser. Successful testing will lead to a full-scale dress rehearsal on a South Pole lake which will approximate the feasibility of sending a science payload to Europa in the near future.

 

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Building projects with microcontrollers (especially Arduinos as of late) opens minds to an unlimited amount of innovations. Whether the projects are created for fun, or to serve specific purposes, they can always motivate others to be creative. The latest Arduino powered creation comes from Ekaggrat, an inspired individual with a strong interest in science.  

 

 

Ekaggrat has created a robotic arm that writes down the time by the minute on a dry-erase board. After a minute is up it erases the digit and rewrites the new time. It is driven by four servos that control the arm and hand movements. Two 9G metal gear RC servos move the arm while two 4.5G ultralight servos control the hand movements. Using servos makes it a little loud and noisy and limits the accuracy of the robotic hand writing. However, there still can be improvements to be made such as a change to stepper motors to improve accuracy.

 

 

Nonetheless, the creation is truly inspiring and the programming that it takes to complete a project such as this is difficult. Keeping track of the timing, 4 servos, and 7-segment display writing orientation in sync with one another is impressive for a hobby project. This goes to show that the amount of creations possible with technology is limitless.

 

 

Eavesdropper

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The Takashimiya department store in Japan decided a great promotion would be a lifelike female android mannequin seducing potential shoppers in their store window. Since its introduction, the bot has done nothing but startle customers and inspire robotics designers.

 

The creator of this mannequin is Dr. Hiroshi Ishiguro, who is well known for inventing the Geminoid-F Robot. The Geminoid is a bot designed to look as real as possible. If realistic is the goal, it will cost them $110,000 USD (10 million Yen) to wheel in the bot. The more recent Geminoid-DK takes realism to a completely new level. The DK was made to look exactly like its owner, Aalborg University Professor Henrik Scharfe. Hop over to the DK's website for more.

 

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Lifelike Geminoid DK in this image. Hard to tell it is fake. (via Geminoid DK)

 

The idea of the mannequin is to draw in more shoppers by intriguing them to see more and not to scare them from walking inside. The mannequin is the new idea of visual merchandising.  Dr. Ishiguro said that android mannequins will be the future of shop displays and the traditional mannequins "will be no more." The mannequin knows when someone is present; now that is creepy. It can also display a range of emotions while being able to nod, yawn, and wink at a passersby.

 

Although it may be freaky to see, it is not any more strange than the age-old tactic of real humans in the display windows.  Even that odd job is being taken over my machines. It's a tough world for us humans.

 

Eavesdropper

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Truss Navigating Robot

Posted by Eavesdropper Mar 6, 2012

 

A group of researchers from Cornell Creative Machine Labs are currently developing an autonomous robot inspired from metabolisms of biological organisms. The goal is to be able to break down larger complex structures into smaller simpler pieces that may be reassembled to create a different type of structure.

 

 

The robot clamps onto a specially designed truss using rotational robot-lockable connectors and can traverse the three dimensional structure using three basic motions. Bi-directional gears on the robot allow it move between perpendicular planes, horizontally and vertically along a truss, and 180 degrees around a truss to move from the top to the bottom. In addition, reflectivity sensors are implemented into the robot which give it a sense of location relative to the truss structure, ultimately allowing it to function autonomously.

 

 

The sensors and movements are all controlled from on board the robot. The robot carries with it a sensor I/O board, a microcontroller, servo motors, and an on board battery. These simple electronics allow it detach truss beams with 100 percent success rate and reattach them with a 70 percent success rate.

 

 

While they would like to use the robot for building deconstruction and repair, that does not stop the researchers from thinking big. One day they hope that it could help repair and construct the space station or any other dangerous tasks associated with the outside of the space station or a shuttle. Meanwhile, the researchers will be working on improving the robot so it will be cable of carrying multiple truss beams at once, and they plan on re-working the algorithms that will allow it to traverse a path of most efficiency based on the final design. 

 

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(via USPTO)

 

Toyota, along with the Illinois Institute of Technology, are innovating on an age-old device, the walking cane. This new version resembles the function of a Segway. With a six-axis accelerometer, it can sense if the user is falling forward or backward and exert power in the appropriate direction to help regain balance. This reaction is also controlled by the grip of the user. A stronger grip results in a stronger push from the wheel of the walking cane. Apart from preventing a fall, Toyota also suggests this robotic walking cane can be used as a tool to "exercise or rehabilitate back muscles that are not usually used by people with back injuries." Toyota even plans on incorporating fingerprint recognition to prevent theft and make this smart cane, that much smarter and impressive. This certainly seems appropriate for the younger elders in the digital age.

 

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Nano-quads (via KMEL Robotics)

 

Kmel Robotics may have one of the best promotions for their future flagship product, the mini quad-copter, via a collaboration with the University of Pennsylvania's GRASP Lab. The demonstration shows a series of synchronized flying patterns. The video gives the illusion of autonomous swam behavior. At the moment, both Kmel and GRASP are not letting out any information on the project.

The University of Pennsylvania researchers Alex Kushleyev, Daniel Mellinger, and Vijay Kumar put these quad-copters to the test. As the video shows, it was a very successful project. Like small remote control helicopters, we all received one Christmas in the past, these quad-copters will have a very limited battery power source. This is the only information released at the moment. As more develops, I will report back immediately.

 


 

Where can all this lead? To a better understanding of autonomous swarm control, rescue purposes, or continue to work together and impress like the Swarmanoids. Either way, these are sure to make an impact.

 

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Berthold Bauml would be to blame for with the downtrodden servatude of robots, or the impending robot uprising. He is the lead scientist in real-time dynamic motion planning at DLR. He developed a new advanced humanoid robot named, Agile Justin. It stands with a happy face on a terrorizing body.


Agile Justin is the new and improved sister of the older version named, Rollin’ Justin. Berthold stated, “…but with improved dynamical performance: 1.5x faster arms through different gear ratios; completely new wheel electronics and bus architecture, which allows a 500Hz control loop over all four wheels and steering DOFs on the mobile platform; 1kHz control loop for the arms, torso and hand DOFs,” when it comes to the improvements in Agile Justin.


The different feature from all the other humanoid robots and Agile is that it has full-body control. The full-body controls consist of, real-time coordination of hands, arms, torso, and mobile base for dynamic tasks. Phew, looks like I can out run this robot.


The technical details should be forthcoming in academic publications later this year along with demonstrations at Automatica 2012.


Even though I want to see technology advances, I hope Agile does not get a mind of her own.

 

Eavesdropper

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University of Albany's robot in action

 

It was proven in 1997 that a computer’s computational abilities could outsmart a human when super-computer Deep Blue beat professional chess player Gary Kasparov at his own game. This match put the human brain against the software programming capabilities of a team of developers, but Deep Blue still needed human assistance in physically moving the chess pieces.

 

14 years later, roboticists hope to grant computers like Deep Blue the ability of playing an entire game of chess independent of human assistance. In 2010, a competition was held at the annual Association for the Advancement of Artificial Intelligence Conference in San Francisco. Roboticists from many places and universities presented robots that resembled those on an automotive assembly line.

 

Their robots ran into trouble trying to identify and then properly move the game pieces in accordance to the game rules. Some robots used cameras to locate pieces,  but none were programmed to identify them. Instead, memory of the initial position of each piece indicated which piece it was and how it could legally be moved around the chessboard. Despite all methods of movement, all had a tough time clearly identifying what moves were made and where exactly the pieces were placed. Furthermore, they were slow in making their moves, which only took them milliseconds to process and decide.

 

The winning robot was "Maxwell" from the University of Albany. The robot moved along its side and probably made generous use of its mobility to clearly see moves and piece placement from different angles.

 

While a robot’s arm-camera coordination still pales in comparison to a human’s hand-eye coordination, it is pertinent to note we developed those skills over hundreds of thousands of years. Roboticists and programmers have only been working on developing these skills in robots for only a few decades.

 

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(Right) HOVIS bot. (Via Robotshop)  (Left) A less advance HOVIS.

 

Beware Android’s apps are COMING ALIVE!

 

A South Korean company, Dasarobot, invented a HOVIS humanoid robot. The HOVIS can only be compatibility with any 3.5-inch Android-based smartphone. When the phone is connected to HOVIS, the app then become the robot’s commander. Several Android control apps are planned for the HOVIS bot, though availability outside Korea is not clear. However, when searching through your Android app market, I recommend avoiding the violent ones, unless you want a vicious robot.

 

The HOVIS humanoid robot added some new kicks. The leading telecommunications company in South Korea, SK Telecom, has made it possible for the robot to use Wi-Fi and Bluetooth for control. It not only can retrieve data through thin air, but it can also see, hear and even speak. In order for it to become an eye seeking robot, a camera (computer vision), microphone and speaker (speech recognition, speech synthesis), and the processing power of a fixed PC were added to it.

 

Wondering how much it would cost for developing a humanoid robot hobby? The phrase, bang for your buck, holds truth with these robots. You have your choice from inexpensive robots to expensive academic humanoids. The price tag attached to these remarkable robots start only at $620 for the basic. The HOVIS brand gives you many styles to pick from. When choosing the style all of them have complete-with-exoskeleton to DIY kits, and one of four levels of software for beginners to knowledgeable programmers.

 

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TI has hit a homerun with the $4.30 TI Launchpad.  This low-cost, professional, easy to use tool gives the beginner everything he/she

needs to get up and running in the world of microcontrollers and robotics.

 

 

EMGRobotics MSP430G2553 Robot Controller Board

$15.00 Without CPU (Board is stuffed with socket only)

$17.00 shipped with socketed MSP430G2553



Features:

  • Board ships fully assembled
  • Board ships with MSP430G2553 in socket ( 16K flash, 512 Bytes RAM, A/D converter, ... ) $17.00 version
  • Runs on 3 volts ( 2 AAA batteries )
  • FAN8200 dual DC motor drive in socket - Control up to two 3 volt DC motors
  • Control up to 4 RC servos
  • Built-in IR Range sensor to detect objects up to 12 inches away
  • 3 mounting holes for easy mounting
  • Separate RC servo power supply connection
  • Programmable using the low cost TI Launchpad

 

MSP430G2553 Pin      Function

P1.0                                User3      Digital/Analog

P1.1                                IR analog in

P1.2                                M2CE

P1.3                                M1CE

P1.4                                M1IN

P1.5                                Servo0

P1.6                                User8        Digital/Analog

P1.7                                User7        Digital/Analog

P2.0                                Servo2

P2.1                                Servo3

P2.2                                M2IN

P2.3                                User12      Digital

P2.4                                Servo4

P2.5                                User11      Digital

P2.6                                IR LED

P2.7                                User4         Digital



The EMGRobotics MSP430G2553 Robot Controller Board (RCB) is based on the powerful TI MSP430G2553 16bit microcontroller.  The MSP430G2553 has 16K of flash and 512 bytes of RAM, more than enough to build some very interesting robots.  The MSP430G 10bit A/D converter and analog comparator really set this TI microcontroller apart from the others.  These analog capabilities make the MSP430G the perfect heart of a high tech robot controller.  The robot  controller works with voltages from 2.7 to 3.3 volts, perfect for 2 AA or 2 AAA operation.  The servo's are powered from a separate 6 volt power supply.  If you are not using servos, you do not need the 6 volt power supply.


The EMGRobotics MSP430G2553 Robot Controller Board (RCB) can individually and bidirectionally control two 400ma DC motors.  3 volt DC motors are perfect for small desktop robots, and this robot controller can control two of them simultaneously.  Each motor can be run forward, backward, or stopped independently.  This makes it easy to build any desktop two wheeled robot.


A robot needs a sensor to interact with its environment.  The EMGRobotics MSP430G2553 Robot Controller Board (RCB) ships with a built-in Infra Red (IR) range sensor.  The IR LED sends out pulses of light that is reflected off objects and detected by the IR transistor.  Using the high performance 10 bit A/D in the MSP430G2553 the range of the object can be estimated.  The IR range sensor provides a range measurement from 50 to 1000 depending on a object distance of 1 inch to approximately 12 inches.


The EMGRobotics MSP430G2553RCB is designed to be used with the   TI Launchpad debugger/programmer.  The TI Launchpad is a $4.30 ( that is not a typo ) full featured professional debugger and programmer.  The TI Launchpad can be ordered directly from TI here:

http://e2e.ti.com/group/msp430launchpad/w/default.aspx

The TI Launchpad is an amazing device for the price.  With the include C compiler and debugger ( Code Composer Studio ) you can be up and programming in minutes.  These are easy to use professional tools that let you program the chip, and debug your program using breakpoints and single stepping.  If you are new to embedded programming TI provides a series of tutorials to help you get started.


The EMGRobotics MSP430G2553RCB is supported by www.buildsmartrobots.com, where you can find projects based on the board, example code, and answers to questions. Our goal is to help you build smarter robots.


wiring the MSP430G2553SBC for DC motor only operation


wiring the MSP430G2553 for DC motor and Servo operation



The EMGRobotics MSP430GRCB Controlling a HEXBUG Spider

 

The EMGRobotics MSP430GRCB Controlling a HEXBUG Spider


 

 

The EMGRobotics MSP430GRCB Controlling a HEXBUG Spider

 

 

To Purchase a controller goto: Buy Here

 

 

For instruction on how to Hack a Spider goto: http://buildsmartrobots.ning.com/profiles/blogs/hacking-the-hexbug-tm-spider-with-the-emgrobotics-spider-hack-kit

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(Nov 2011)

 

 

iZac does not care how attractive you are so do not even attempt to “woohoo” this bartender.  iZac is  an electrifying machine, the Android Bartender! The barbot was created by Nick Johnson; who was inspired by Evil Mad Scientist Labs’ creation, Drink Making Unit 2.0. Nick was awed by the Drink Making Unit 2.0.; as a follow up, he challenged himself to develop his own version.

 

If bars own the iZac, would they be able to maintain it without busting their wallets? Nick Johnson took considerable time in determining how the iZac would be able to succeed at its purpose while being easy to maintain. Traditional pumps for the machine are frightfully expensive and impractical. Nick came up with the idea of using a battery powered aquarium pump to pressurize the bottles, lowered the cost and eliminating problems.

 

The iZac is not plugged straight into an outlet, instead if uses a custom laser-cut pinch-valve designed by Nick Johnson. Pinch valves do not require interrupting the tubing which the liquid flows through. The iZac is food safe. Johnson is determined to bring softdrink style self serve to the local pub.

 

barbot.jpg

 

iZac begins serving a delicious cocktail by choosing a drink from the list provided. You then place your glass onto a scale that measures the amount of liquid that would be appropriate. iZac then activates the aquarium pump and opens the appropriate valve to dispense that liquid gold. Then iZac continues to dispense all the liquid that makes up the drink. Once the barbot is finished dispensing; you take your glass and scream “CHEERS!”

 

Eavesdropper

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nao_robot_walking.jpg

The Nao Robot, part of the MyRobot connected site (Via Nao)

 

A social network for robots has gone live. MyRobots.com hopes to connect bots and smart web-enabled objects together in a type of "cloud robotics." The goal is to augment devices capabilities by off-loading computation or other task to the "cloud." This pushes robots beyond their physical and software limitations.

 

Users of the service can create apps to aid in adding to a bot's function. For example, a robot has a camera but does nothing with it but stream video. A cloud based app would give this bot image recognition, navigation, object tracking and the like to that image.

 

Once the owner's bot is connected to MyRobots.com, it can be monitored via the web, sent commands, return updates, and run custom applications. At the moment only a handful of robots are compatible with the social network. However, Arduino based devices and PCs can connect to the system.

 

A serial to Ethernet gateway allows  most non-connected bots to hop on the network. At $77 USD a piece, connecting various old "dumb-bots" may have to wait.


 

My question, can a virtual robot connect to MyRobots? If so, can improvements be made to the virtual-bot?

 

Eavesdropper

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