Researchers develop a soft robotic finger with self-perception

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Soft robotics is a rapidly growing field that has a huge amount of potential in applications where traditional rigid robots would be unsafe or unwieldy. But, building a soft robot comes with a number of unique challenges, particularly when it comes to actuation and position sensing. Fortunately, a newly-developed soft robotic finger with its own sense of self-perception may dramatically improve the situation.

This work comes from a team of researchers at the Bioinspired Robotics and Design Lab at the University of California San Diego and others around the globe. It’s intended to give soft robots the kind of positional sensing that is innately practical in rigid robots. Because a traditional robot’s frame is inflexible, it’s relatively simple to determine it’s exact position — you only need to measure the angle at each joint. But, due to their inherent flexibility, that’s not so easy with soft robots.

The solution that the researchers came up with was to use a neural network and machine learning to identify correlations between the readings from a motion capture system and flex sensors within the soft robotic finger. The flex sensors were placed somewhat arbitrarily, which would normally be extremely difficult to process through explicit programming. But, by using the neural network, the system is able to match those sensor readings to what it sees in the motion capture system.

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Here’s why the future of haptic technology looks (or rather, feels) like

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This graspable haptic device, called Foldaway, is the size of a drink coaster when flat, making it conveniently portable. The user places a joystick where the three hinged arms meet, and the arms offer resistance, to give a sense of the objects being manipulated. (Screenshot of image series by Alice Concordel)

Bringing the sense of touch to virtual reality experiences could impact everything from physical rehabilitation to online shopping.

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Universal Phone For Blind And Sighted People

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The Universal Phone from designer Seunghan Song

The Universal Phone is designed for both blind and sighted people. How? Thousands of micro pins dynamically raise and lower forming a tactile surface for all to get touchy with. Sighted people get the elusive tactile feedback they’re missing with ordinary touch-screens and blind people get a whole new interface made of braille.

 

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Tactile Watch For the Blind

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Feel the Time.

The Sentio is a digital tactile watch for the blind designed by Matthew Wagerfield. The watch has segments that rise 1 mm from the surface of the watch to signify the hour and minute.

The face of sentio exhibits a pair of 7-segment displays that would normally be found on digital alarm clocks, watches or any other digital numerical display. This pair of 7-segment displays outputs either minutes or hours depending on the mode that it is dynamically set to.

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