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Tyler

Robots In Our Homes And In Our Personal Lives in AI News

Robots In Our Homes And In Our Personal Lives
15 April 2015, 12:00 am

                    During America's Civil War, Abraham Lincoln helped his country and the world abolish slavery, but by the end of next decade, it will be back. We will all have domestic helpers in our households, only this time we will not fight a civil war over them.

Forbes - TechLink

Source: AI in the News

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Started Today at 04:50:36 AM
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Tyler

OpenBionics prosthetic hands: Open source, affordable, lightweight, anthropomorphic in Robotics News

OpenBionics prosthetic hands: Open source, affordable, lightweight, anthropomorphic
9 April 2015, 8:51 pm

Fig. 1. The OpenBionics prosthetic hand.Fig. 1. The OpenBionics prosthetic hand. OpenΒionics is an open-source initiative for the development of affordable, light-weight, modular robot hands and prosthetic devices, and can be easily reproduced using off-the-shelf materials.

$200 robotic prosthetic hand  Most current prosthetic hands cost tens of thousands of US dollars. The OpenBionics initiative presents a new open-source design for highly functional, affordable prosthetic hands. The proposed hands (see Fig. 1) cost less than $200, weigh less than 300g and can be easily fabricated with off-the-shelf materials and rapid prototyping techniques. A novel selectively lockable differential mechanism (based on the whiffletree) allows the user to block the motion of each finger independently, and facilitates the execution of 144 different postures with only one motor. To our knowledge this is the most affordable and light-weight prosthetic hand ever built. The design is based on parametric models of hand anthropometry studies, so it can easily be personalized to specific patients. Anyone interested should fill out the appropriate web-form, providing the desired specifications (hand type: left or right, hand length and breadth) and they will receive the personalized design via email.

Nowadays most amputees express their disappointment for: 1) the large cost of buying and maintaining a prosthesis, 2) the increased weight of the device and 3) the difficulties they face with repairs [1]. Moreover the fear of damaging the prosthesis leads most of the amputees to avoid using them in everyday life tasks and use instead simple hooks or grippers. On the other hand, when the amputees are involved in the selection and preparation of the prosthesis (e.g., replication of an open-source design), the likelihood of prosthesis acceptance is increased 8 times. These findings confirm that what amputees need is a highly functional, personalized, affordable and light-weight prosthesis that can be easily developed and repaired.

The OpenBionics initiative has developed and freely distributed an open-source design for creating anthropomorphic, under-actuated prosthetic hands of low complexity and cost. Our hands use a novel differential mechanism (a variation of the whiffletree or “seesaw mechanism” [2]) that blocks the motion of each finger, allowing the user to select between multiple grasping postures and gestures with only one motor. Human-likeness of both robot structure and motion is achieved by employing an index of anthropomorphism in the design process [3] that uses parametric models derived from hand anthropometry studies [4]. The proposed hands can be easily reproduced with off-the-shelf materials and can be fabricated with rapid prototyping techniques.

 

Hand Design Robot Fingers – In our design, anthropomorphism is reflected in two specific design choices: 1) the use of an anthropomorphic kinematic model [3] and 2) the use of a bio-inspired finger actuation and transmission system. The bio-inspired finger design structurally reproduces the flexion movements of the human hand with tendons driven through low-friction tubes and the extension using elastomer materials. The backbone of the finger can be constructed with Plexiglas (acrylic) or ABS, and the flexure joints with silicone or polyurethane sheets.

Thumb Mechanism – For the thumb we use a selectively lockable, toothed mechanism that can implement 9 different opposition configurations. The mechanism substitutes the three Degrees of Freedom (DoF) that implement the human thumb opposition with only one rotational DoF and is completely stiff when it is locked, thus it is not affected by torsional forces inherent in dynamic or unstructured environments. A separate tendon routing system is used for the thumb, and the thumb tendon is terminated to a separate servo pulley.

Selectively Lockable Differential Mechanism – We developed a selectively lockable differential mechanism that can block the motion of each finger independently. Such a mechanism allows the user to intuitively select the desired finger combinations. The top two bars of the whiffletree (see Fig. 2) have appropriately designed holes, and the palm accommodates a series of buttons that are elongated upon pressing. The idea is that, when each button is pressed, the elongated part fills the appropriate finger hole and the motion of this particular finger is constrained. A total of 16 different index, middle, ring and pinky combinations can be implemented using the differential mechanism and a single motor. These can be combined with the 9 discrete positions of the thumb, to produce a total of 144 different grasping postures or gestures with a single motor.

Fig. 2: The left figure presents the inner side of the palm. The three bars of the modified whiffletree are depicted with red color. The holes of the upper two bars are filled by the elongated parts of the corresponding buttons, constraining the motion of different fingers. In this instance the motion of the index and pinky fingers is constrained, resulting to a change at the inclination of the differential mechanism finger bars. The right figure depicts the thumb mechanism in red and golden colors.Fig. 2: The left figure presents the inner side of the palm. The three bars of the modified whiffletree are depicted with red color. The holes of the upper two bars are filled by the elongated parts of the corresponding buttons, constraining the motion of different fingers. In this instance the motion of the index and pinky fingers is constrained, resulting to a change at the inclination of the differential mechanism finger bars. The right figure depicts the thumb mechanism in red and golden colors. Personalized Designs – Τhe use of parametric models derived from human hand anthropometry studies allows for the development of personalized prostheses (see Fig. 3). The only parameters required to derive the finger phalanges lengths and the personalized finger base frames positions and orientations are the human hand length (HL) and the human hand breadth (HB).

The proposed hands can be fabricated using off-the-shelf, low-cost materials and rapid prototyping techniques (3D printing) or standard machinery tools (CNC, laser cutters etc). All required materials can be easily found in hardware stores around the world.

You can use the following link to order your personalized design (.CAD files): Web Form for Personalized Designs. All cad files (Solidworks .sldasm, .sldprt and .dwg, .dxf, .stl), required for the replication of the proposed design are distributed through our website.

Fig. 3: Personalized designs. Two different robot hand models are depicted. The left hand version was created with a total length of 17.8cm, while the right hand version with a total length of 19cm.Fig. 3: Personalized designs. Two different robot hand models are depicted. The left hand version was created with a total length of 17.8cm, while the right hand version with a total length of 19cm.  

Fig. 4. The prosthetic hand developed by the OpenBionics team.Fig. 4. The prosthetic hand developed by the OpenBionics team.  

The proposed design is fully described in the following paper:

George P. Kontoudis, Minas V. Liarokapis, Agisilaos G. Zisimatos, Christoforos I. Mavrogiannis and Kostas J. Kyriakopoulos, “Open-Source, Anthropomorphic, Underactuated Robot Hands with a Selectively Lockable Differential Mechanism: Towards Affordable Prostheses”, IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), Hamburg (Germany), 2015 (under review).

The OpenBionics initiative provides also designs for open-source, affordable (<100$), light-weight (<200gr), under-actuated robot hands.

Experiments conducted with the proposed hands can be found at the following videos:

More information can be found in our website, http://www.openbionics.org, Facebook, Twitter:

 

References:

[1] D. Edeer and C. W. Martin, “Upper limb prostheses – a review of the literature with a focus on myoelectric hands,” 2013. [Online]. Available: www.worksafebc.com/evidence

[2] L. Birglen and C. M. Gosselin, “Force analysis of connected differential mechanisms: application to grasping,” The International Journal of Robotics Research, vol. 25, no. 10, pp. 1033–1046, 2006.

[3] M. V. Liarokapis, P. K. Artemiadis, and K. J. Kyriakopoulos, “Quantifying anthropomorphism of robot hands,” in IEEE International Conference on Robotics and Automation (ICRA). IEEE, 2013, pp. 2041–2046.

[4] B. Buchholz, T. J. Armstrong, and S. A. Goldstein, “Anthropometric data for describing the kinematics of the human hand.” Ergonomics, vol. 35, no. 3, pp. 261–73, 1992.


Recent Publications:

Agisilaos G. Zisimatos, Minas V. Liarokapis, Christoforos I. Mavrogiannis and Kostas J. Kyriakopoulos, “Open-Source, Affordable, Modular, Light-Weight, Underactuated Robot Hands”, IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), Chicago (USA), 2014. [BibTeX] [PDF]

Minas V. Liarokapis, Panagiotis K. Artemiadis and Kostas J. Kyriakopoulos, “Quantifying Anthropomorphism of Robot Hands”, IEEE International Conference on Robotics and Automation

(ICRA), Karlsruhe (Germany), 2013. [BibTeX] [PDF]

Agisilaos G. Zisimatos, Minas V. Liarokapis, Christoforos I. Mavrogiannis, George P. Kontoudis and Kostas J. Kyriakopoulos, “How to Create Affordable, Modular, Light-Weight, Underactuated, Compliant Robot Hands”, Control Systems Lab, School of Mechanical Engineering, National Technical University of Athens, January 2015. [BibTeX] [PDF]

****

Editor’s note:

The OpenBionics initiative is not to be confused with Open Bionics Ltd (ex featured here).

If you liked this article, you may also be interested in:

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Source: Robohub

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Started Today at 04:50:35 AM
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Tyler

Content marketing platform adds deep data science to marketer's arsenal in AI News

Content marketing platform adds deep data science to marketer's arsenal
15 April 2015, 12:00 am

                    A Toronto-based content marketing and live publishing SaaS platform is boosting its big data capabilities with the acquisition of a New York City-based influence analytics marketing platform. ScribbleLive announced its acquisition on Wednesday of Appinions Inc., developers of an influence analytics marketing platform that is built on natural language processing and social network analysis technology.

IT Business CanadaLink

Source: AI in the News

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Started April 17, 2015, 10:50:41 PM
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Tyler

Talking Machines: Spinning programming plates and creative algorithms, with Charles Sutton in Robotics News

Talking Machines: Spinning programming plates and creative algorithms, with Charles Sutton
9 April 2015, 7:51 pm

Plates-Spinning-on-SticksIn episode eight we talk with Charles Sutton, a professor in the School of Informatics University of Edinburgh about computer programming and using machine learning to better understand how it’s done well.

Ryan introduces us to collaborative filtering, a process that helps to make predictions about taste. Netflix and Amazon use it to recommend movies and items. It’s the process that the Netflix Prize competition further helped to hone.

Plus, we take a listener question on creativity in algorithms.



Source: Robohub

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Started April 17, 2015, 10:50:41 PM
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Maviarab

Friday Funny in General Chat

Share your jokes here to bring joy to the world  :)

688 Comments | Started February 13, 2009, 01:42:59 PM
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Claude

Helen Kane - Dont Be Like That (1928) in Video

https://www.youtube.com/watch?v=JesUuK9pwsk

Started April 17, 2015, 07:58:55 PM
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ranch vermin

anyone want to have a chat or a stab at NLP with me? in AI Programming

Ok, so ive got a memory system, where a state of the sensors is a serial code,  and its completely illiterate, so im having a stab at trying to get to understand something simple autonomously.  But whatever you want to talk about can be completely irrelevant to this, I realize people dont necessarily understand my ideas for sure, simple detached idioms is definitely allowed in this post. :)

- so when you go about doing language ai,  just remember how anal programming is, and thats how a computer reads things.  which is the complete opposite of language, which is so freeform a computer has no chance at parsing it successfully.


* so these serial codes, are actually language, so it has language, even before its literate at all.

but!!! the words it sees, it cant involve them in its motor. (especially if its just dragging a mouse around in a limited clostrophobic environment, like a web bot does.)
  again-> its hard to associate the word for 'button'  with looking at a button.  same issue.

* its not just looking at shapes,  its actually symbolic of some part of its behaviour somewhere i guess.

* it treats it like pure programming, and then you have a missing links problem, where we automatically fill it with our bullshit, and the computer hasnt got bullshit yet.

* also, it has problems with contradictions, because its just pure programming to it.  (and theres a great many errors in our writings,


so anyone want to add or reject what i said or anything,  just anything language based even GA's,  Ivan had some cool ideas a while back due to some symbolic logic GA, and thats perfectly fine.  anything will do.

1 Comment | Started April 17, 2015, 06:09:58 PM
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Art

Selfless in AI in Film and Literature.

It's another one of those transfer the mind into a different conscious body. Things never quite turn out as planned...

http://www.imdb.com/title/tt2140379/

3 Comments | Started March 07, 2015, 08:06:27 PM
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Freddy

New Star Wars 7: The Force Awakens Trailer Released in AI in Film and Literature.

Han Solo !  :happyaslarry:

Star Wars: Episode VII - The Force Awakens Official Teaser Trailer #2 (2015) - Star Wars Movie HD

4 Comments | Started April 16, 2015, 08:08:49 PM
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Tyler

Harnessing AI to Make Your Boring Bank Statements Useful in AI News

Harnessing AI to Make Your Boring Bank Statements Useful
15 April 2015, 12:00 am

                    Old-school financial institutions are typically slow-moving giants. And that's a shame, because banks also tend to accumulate deep troves of data on their customers that goes mostly untapped.

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Source: AI in the News

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Started April 17, 2015, 04:50:30 PM
Marketers Tricked SXSW Tinder Users With A Chatbot

Marketers Tricked SXSW Tinder Users With A Chatbot in Articles

A company promoting the movie Ex Machina created a fake account, Ava, with a photo of the star of the movie. Ava is an AI in the film and presumably she wants to get down.

Apr 11, 2015, 10:19:14 am
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Robohub is a non-profit online communication platform that brings together experts in robotics research, start-ups, business, and education from across the globe. Our mission at Robohub is to connect the robotics community to the rest of the world. Content-area specialists curate all incoming articles to make sure that reporting is truthful, fair and balanced, and in-house editors ensure that all content meets the highest editorial standards for language and clarity. Embedded comments, and an active presence on Google+, Facebook and Twitter further help to promote discussion and debate.

Apr 10, 2015, 06:55:19 am
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Computers in comics generally fall into one of two categories: independently intelligent (bad) and not (good). This division is natural for the highly charged emotional simplicity of comic books. As long as computers are simple tools to be used, their essentially neutral nature as slaves is considered beneficial. Artificial intelligence-real intelligence-is accompanied by ruthless logic or devious emotions and usually by an urge to supplant the creator. A computer capable of thinking many times faster than man would naturally be frustrated by the apparent stupidity of humans, and we would be no better than apes to such a machine.

Mar 20, 2015, 06:55:33 am
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Bot directory supports linking external bots, not just bots created on the site.

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Julie is a conversational chatbot that uses 3D video and expresses many different emotions, actions, and poses. You can ask Julie to perform actions, like "sleep", "wake up", "scream", or "kiss". Julie was developed to show case BOT libre's new avatar support. She is a chatbot designed for smalltalk and chit chat.

Mar 12, 2015, 11:22:23 am
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I have been experimenting with the development of a therapy bot in collaboration with computer scientist and three-time Loebner Prize winner Dr. Richard Wallace. The Loebner Prize in Artificial Intelligence is an award for the most human-like computer.

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With the recent increase in the popularity of chatbots (due, in large part, to the recent 2011 Chatterbox Challenge), I’ve seen a lot of requests in various places, asking about how someone could create their own chatbot, with many of these questions coming from individuals who have no prior experience or knowledge.

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[Ep: Ghost in the Machine] (COS) "Central Operating System" homicidal computer - Mulder and Scully investigate the mysterious death of a corporate executive killed by an elaborate electronic booby trap invented by a psychotic computer, and try to discover who programmed the maniacal machine in the first place.

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