Category Archives: Robotics
The engineers at Boston Dynamics have done it again, and this time with a video that will make you feel sorry for the robots.
The new Atlas humanoid robot is “designed to operate outdoors and inside buildings,” Boston Dynamics wrote in a description of the video posted on YouTube. Weighing in at 180 lbs (82 kg) and standing 5’9″ (1.75 m) tall, its a slimmer version of its 6′, 330 lb (1.83 m, 150 kg) predecessor. It uses Lidar and stereoscopic sound to avoid obstacles, navigate, and pick up boxes. And better yet, it’s battery powered.
Forbes contributor Brid-Aine Parnell explains:
“Perhaps the most important change this time round is the lack of cables and support tethers. This frees Atlas up for all kinds of uses, including search and rescue operations in areas humans can’t enter and basically any outdoor work.”
It’s no wonder the robots eventually revolt. Stop the abuse now! 🙂
What will the future be like when we have humanoid robots? Let’s say that a military accident releases swarms of microscopic robots called forger nanites into the environment. They make their way towards a research lab, which after hours is run by science intern Kutisha. As three swarms head her way, the military dispatches hover-tanks carrying human sized robotic mechs as disaster relief. Alone, late at night, she places her faith in the mechs, watching the battle between the big and little machines unfold on her doorstep. The question may not be who will win, but who to trust.
Yes, this is a plug for Death Has No Shadow.
A robotic jellyfish. Go figure.
Cyro is a human-sized jellyfish robot developed by team of researchers at Virginia Tech College of Engineering, headed by Shashank Priya. They modeled it on one of the world’s largest jellyfish, Cyanea capillata (AKA lion’s mane jellyfish). Cyro is a larger version of Virginia Tech’s human hand sized RoboJelly.
“Jellyfish make great models for self-powered and autonomous bots partly because of their relatively low metabolic rate, meaning they can move through the sea on little energy. They also come in various sizes and inhabit a range of aquatic habitats from shallow coastal areas to the deep-sea, meaning engineers have plenty to work with when looking for a mimic for particular uses” (source: LiveScience).
|Weight||170 lbs. (77 kg)|
|Length||5.6 ft. (1.7 m)|
|Function||Prototype for self-powered, autonomous robots that monitor the seas, map the seafloor and even reveal secrets of marine life|
|Development Stage||Second generation prototype developed at the university level.|
|Unique Features||SubmersibleVertical lift: moves from 8-feet-deep (2.4 m) to the surface with five complete pulsing motions.
Cyro uses an upward swimming motion for propulsion. Linear actuators move radially from an outward position in toward the center that create pulsing motions of the artificial mesoglea, or the gelatinous substance that makes up the jellyfish’s skin.
A few weeks ago, DARPA (the US Defense Advanced Research Projects Agency) announced that it would hold competitions for autonomous robots that would give aid to victims of natural or man-made disasters and conduct evacuation operations.Calling it the DARPA Robotics Challenge (DRC), the agency is looking for anyone who can advance current robot technology past existing limits to create an autonomous bot for the DOD’s “disaster recovery mission.” The primary technical goal of the DRC is to develop ground robots capable of executing complex tasks in dangerous, degraded, human-engineered environments.
The winner takes all: a $2 million cash prize.
The DRC is scheduled to launch in October 2012 with events planned for June 2013, December 2013 and December 2014.
One of the main objectives of this program is to develop humanoid robots or at least robots that can work in a human environment. Dr. Gill Pratt, Program Manager in the Defense Sciences Office at DARPA, explained the reason for this in an interview with IEEE Spectrum:
“The three big ideas here are, first, we need robots that are compatible with shared environments, even though the environments are degraded, and second, we need robots that are compatible with human tools. The reason for that is that typically we don’t know where the disaster is going to be, and right now the stock of tools, all the way from vehicles to hand tools, are really made for people to operate, for maintenance or construction, and so we want the robot to be able to use all those tools. The third thing is compatibility with human operators in two ways: one is that the robot is easy to operate without particular training, and second is that the human operator can easily imagine what the robot might do. For that to be true, the robot needs to have a form that is not too different from the human form. But I think that some variation actually might work.”
What will the future be like if we have humanoid robots assisting in disaster relief? Let’s say that a military accident releases swarms of microscopic robots called forger nanites into the environment. They make their way towards a research lab, which after hours is run by science intern Kutisha. As three swarms head her way, the military dispatches hover-tanks carrying human sized robotic mechs as disaster relief. Alone, late at night, she places her faith in the mechs, watching the battle between the big and little machines unfold on her doorstep. The question may not be who will win, but who to trust.
Yes, this is a plug for Death Has No Shadow.
The bionic eye is an artificial device that gives site to the blind or enhanced sight to those who can see on their own — a cybernetic device. Currently, bionic eyes for the blind are experimental with some success depending on when the patient was blinded and what cause the blindness. According to Wikipedia, there are at least 11 ongoing bionic eye projects:
- Argus Retinal Prosthesis
- Microsystem-based Visual Prosthesis (MIVIP)
- Implantable Miniature Telescope
- Tübingen MPDA Project Alpha IMS
- Harvard/MIT Retinal Implant
- Artificial Silicon Retina (ASR)
- Optoelectronic Retinal Prosthesis
- Dobelle Eye
- Intracortical Visual Prosthesis
- Virtual Retinal Display (VRD)
- Visual Cortical Implant
In the video below Miikka Tertho, a blind man, sees images for first time (filmed by the University of Tuebingen/Retina Implant AG). This is not Six Million Dollar Man stuff. (Remember that show?) This is not Lee Majors zooming in on the bad guy with a “boop-boop-boop-boop.” This is a blind who can see because he has something like parts of a camcorder stuck in his eye.
Seeing verses Perceiving
Mike May (not the guy in the video above) was 3 years old when a chemical explosion blinded him. In 2000 when he was 46 years old, he regained partial vision after a corneal transplantation stem cell procedure. Although he can see, he has difficulty perceiving. “May still has no intuitive grasp of depth perception. As people walk away from him, he perceives them as literally shrinking in size, problems distinguishing male from female faces, and recognizing emotional expressions on unfamiliar faces”(Wikipedia, Article: Mike May (skier))
One theory is that the temporal visual cortex uses prior memory and experiences to make sense of shapes, colors and forms. During our first five years of life outside the womb, our brains are building a library or database of images associated with their context. Over time, subtle cues are extracted from those images. The visual cortex compares the image we see now to those library of cues. But that part of the library of our brain is best stocked early when our brains are subtle. For Mike May, this part of the library was closed, but he was able to stock the cues in the sound and touch section. He developed very precise senses of hearing and touch.
The Problem with Adult Bionics
In the future when cybernetic replacements or enhancements are more common, it will also be necessary to fiddle with the mind to get the implants to work easily. A method might be found that will allow the patient to restock his or her visual database quickly. If not, then seeing will not equal perceiving.
Images and video courtesy of Retina Implant AG.
Earlier this week, The Associated Press reported that a paralyzed man remotely controlled a simple robot using only thoughts. (The images shown here are not from that experiment, but from one done three years ago by Honda. More on that later.)
The robot was a small, simple device that moved on wheels, was equipped with a camera, and had a laptop computer perched on top. The paralyzed man, Mark-Andre Duc, was 62 miles (100 km) away and controlled it using only a head cap while trying to raise his paralyzed fingers. The electroencephalogram (EEG) cap measured his brain signals, which were interpreted as command movements.
Both the researchers and the Mr. Duc admit it is not easy to use. Jose Millan, the team’s leader said, “Sooner or later your attention will drop and this will degrade the signal.” Mr. Duc told The Associated Press through the video link on the laptop, “When I’m in pain it becomes more difficult.”
Using measureable thoughts to control an electronic device isn’t totally unique.
- Spring 2006: Honda Research Institute in Japan used feedback from an MRI (Magnetic Resonance Imaging) machine to remotely control a robotic hand. (Shown in video below.)
- Spring 2009: A team lead by Javier Minguez at the University of Zaragoza in Spain worked on robotic thought manipulated wheelchairs.
- Spring 2009: Honda Research Institute in Japan demonstrated how their robot Asimo could lift an arm or a leg through signals from a user with EEG and NIRS (near-infrared spectroscopy sensors). (Shown in video below.)
- Fall 2009: Toy maker Mattel released a game based on a simplified version of this concept with mixed reviews.
- Fall 2010: A team lead by Rajesh Rao from Neural Systems Laboratory, University of Washington, not only working on mind control of a robot, but also to how to teach the robot simple tasks using the same mechanism (The Robot That Reads Your Mind to Train Itself).
- Spring 2011: A team lead by C.T. Lin from California State University at Northridge creates EEG cap driven wheelchair that adapts to the operator’s unique brain patterns. For obstacle avoidance, the wheelchair is also equipped with a laser sensor and cameras. (See their video.)
Intricate manipulation such as tying shoelaces is not possible yet with EEG caps since the signal is inherently too noisy. To get cleaner signals, we have to tap directly into the brain. Ouch. That painful subject is for another blog.
“Or you can use the SandFlea.”
The SandFlea looks like the RC car most kids would love to play with because, in addition to cruising around the yard, it can jump 30 feet into the air, high enough to clear a wall, on to a roof of a house, up the stairs, or though a second story window. An onboard stabilization system keeps it oriented during flight to improve the view from the video uplink and to control landings.
Sand Flea is funded by the US Army’s Rapid Equipping Force and scheduled to undergo safety and reliability checks at the Army Test and Evaluation Command (ATEC). If it passes evaluation, several will be field tested in Afghanistan, where US military currently uses more than 2,000 robots.
|Weight||11 lbs. (5 kg)|
|Speed||3.4 mph (5.5 km/h)|
|Jump Height||3-30 ft. (1-8 m)|
|Camera resolution||1280 x 960|
|Battery life||2 Hours|
|Kinetic energy||25 Jumps|
|Operating Environment||Tolerant of humidity, salt, oil, and sand|
|Intended use||Ruggedized reconnaissance robot|
|Unique Features||It is equipped with|
|Onboard gyro stabilization system to assist in-flight (a) orientation, (b) video quality, and (c) controlled landings,|
|Laser guided the launching,|
|Launching piston used for the jump fires out the back of the robot and is powered by CO2,|
|Wheels designed to cushion the shock of landing.|
For more information visit http://www.bostondynamics.com/robot_sandflea.html.
See Death Has No Shadow for fictional acrobatic-mechs in action.
Created by Boston Dynamics, Cheetah is now the fastest legged robot on the planet. The video below was released by DARPA today.
OK. So it looks like it’s running backwards, but a top speed of 18 mph is pretty good. It doesn’t match a cheetah’s 70 mph, but it could probably outrun you. The fastest human currently on record, Usain St. Leo Bolt, a Jamaican sprinter, can run 23.35 mph … for 100 meters.
Why not use wheels? It could go a lot faster than 18 mph. Legged robots handle some off-road terrain better. Research into making four-legged robots faster has the potential of developing better prosthetics for amputees, right? Well, prosthetics for canines.
But it’s built by DARPA. (Somebody commented, “Built by people who never saw The Matrix nor Terminator.”) DARPA… they don’t make toys. This isn’t the next contender for “Tickle Me Elmo” and you won’t find it next to the Barbie doll isle. And DARPA isn’t a branch of the Veteran’s Administration researching better prosthetics. Ever see the Boston Dynamics BigDog robot? Creepy. It still gives me nightmares. This is war craft.
Part of me says “cool!” Another part says, “yikes!”
See Death Has No Shadow for more scary-cool-military-mechs in action.