The Sandia Hand mimics human fine motor movements. If a finger pops off, the hand can use its remaining fingers to pick it up and resocket it. The fingers (attached to the hand with magnets) fall off easily because they're designed to do so, in case the operator smashes the hand against another object. This prevents the hand from breaking. The fingers' modular design also means operators can mix and match fingers with different shapes and functions or attach other tools, such as flashlights, screwdrivers, or cameras. Operators control the hand with a glove.
Sandia National Laboratories has created a low-cost, highly dexterous robotic hand to aid soldiers in disarming improvised explosive devices. (Source: Randy Montoya/Sandia National Labs)
Developed by a team led by principal investigator Curt Salisbury, the Sandia Hand has a tough outer skin covering a gel-like layer that mimics human flesh. This helps the hand grab and manipulate objects the way a human hand would.
Hands are the most difficult part of a robotic system to construct, because of the need to design high dexterity while keeping costs down, Salisbury said in a press release. Sandia puts the cost of most robotic hands at about $10,000 for "each independently actuated degree of freedom" -- much too high for distributing to troops. The Sandia Hand, which has 12 degrees of freedom, costs about $800 per degree in low production volumes, Salisbury said.
To drive costs down that far, Sandia developed the hardware in partnership with researchers at Stanford University. It also worked with the consulting firm LUNAR to select motors, research skin-simulating materials, perform cost-of-goods and cost reduction analyses, and research design-for-manufacturing considerations. The Sandia Hand was funded by DARPA's Autonomous Robot Manipulation Program.
The hand's dexterity may also help investigators track an IED's makers after the hand has disarmed it. Instead of simply blowing up the device, the hand could perform delicate disarming operations that preserve evidence. Researchers did not say what kind of evidence could be used to detect IED makers, but chemical evidence is at least one kind that comes to mind.
Ann, you talk about cost of most robotic hands being $10K and this one being $800. I wonder, what is the difference? Are those hands fully autonomous, or is it something else? Don't get me wrong, this is a very interesting and seemingly useful development. It is always interesting to know what was done differently to get this much cost advantage.
Definitely looks like we're heading into some serious improvements in terms of the dexterity and flexibility of robotic hand movements. All good for those tasks that require precision and fluidity of movement. I'm stuck on the discussion about the "fingers" breaking, however. As these robots are built and marketed to be more human-like, those human-like descriptions become interchangeable and in cases like this, is can be jarring!
Truchard will be presented the award at the 2014 Golden Mousetrap Awards ceremony during the co-located events Pacific Design & Manufacturing, MD&M West, WestPack, PLASTEC West, Electronics West, ATX West, and AeroCon.
Robots that walk have come a long way from simple barebones walking machines or pairs of legs without an upper body and head. Much of the research these days focuses on making more humanoid robots. But they are not all created equal.
The IEEE Computer Society has named the top 10 trends for 2014. You can expect the convergence of cloud computing and mobile devices, advances in health care data and devices, as well as privacy issues in social media to make the headlines. And 3D printing came out of nowhere to make a big splash.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.