Robots will provide a fingerprint - Cell phones
Robots of the future may acquire "fingerprints" on their "hands". Maybe they will not be each unique, as we have, but will be able to perform the same important role. Each of us is born with a unique pattern on the fingers and palms, and although criminologists have learned to take advantage of fingerprints for more than a century ago, what they are needed for our bodies, it was unclear until recently. Only now is becoming increasingly popular hypothesis, according to which the fingerprint (papillary lines) increase traction, and most importantly - play the role of "amps" tactile signal. In the article "Causes of fingerprints" we wrote that their presence can increase the intensity associated with the feeling of vibrations in a hundred times - and then of sensitive nerve cells containing oscillating hairs transmit a signal down the chain to the brain. Such opportunities Singapore researchers decided and robots, because the better and become more agile in their behaviors, the greater the sensitivity they need. So why not achieve its increase in the dozens, and perhaps in the same hundreds of times without using any complicated solutions and systems, a simple and elegant way, found by nature?.. Based on this idea, Shuji Sam GE (Shuzhi Sam Ge) and his colleagues have created a tactile sensor, covered with material, mimicking papillary lines. It consists of four force sensors located on a substrate with an area of 4 sq. mm and covered with a thin corrugated plastic sheath. Scientists have shown that when using a flat coating the sensitivity of the sensor is much falls. But it only confirmed their calculations, but the most interesting discovery was the other. It turned out that rugged ridges" and "valleys" of the surface of the sensor and helps in the task of determining the shape of the object to which it refers. The relative position of the vectors of the forces that are recorded by sensors, are determined by the impact of an object on the rugged surface of the sensor, and this is their location allows you to identify the shape of the object. At least at the first stage, the scientists were able to learn to distinguish on this basis, flat and round objects. This finding may be particularly useful for robotics of the future - and, of course, opens up new facets of what seems so simple and obvious - our own fingerprints..