Coffee helps robot walkers to navigate the terrain much faster

One of the problems of using robots on the roads is that it is impossible to predict the topography of the surface on which they will have to move. The best option yet are walking mechanisms, but the issue for them, only on a smaller scale. First and foremost, we are talking about the feet of the robot which are in contact with the relief – scientists from the University of California in San Diego has offered to produce their… of coffee.

Have dry coffee grounds have this effect as “granular coupling”, when the pressure of the ground coffee particles are pressed together. That creates problems when cooking Barista coffee, can help in robotics. If you make a support leg of the robot in the form of a flexible latex spheres filled with coffee grounds, then the pressure on the surface, it will deform and take the shape of an almost perfect tread.

This design can be passive, when the robot shakes up the legs to loosen and prepare the mixture, or active, when for best results use a vacuum pump. This active system is more effective on the most uneven surfaces, the passive is better suited for flat slopes. When the tests on the coating of the pebbles new robotic legs provided the acceleration by 40% because adaptable feet did not fall through between the rocks and get stuck there.

Immersion depth in loose material like wood chips or sawdust in the application of an adaptive elevation of the feet, is reduced by 62 %. But the effort failed to pull the legs of the robot falls to 98 %. That is, in comparison with primitive hard kicking mechanisms with coffee filler practically does not get stuck in the loose soil. After initial success, the scientists intend to add sensors to the surface and learn how to change the elevation of the foot before it touches the ground, optimizing each step.

Leave a Reply

Your email address will not be published. Required fields are marked *


Physicists have learned to turn plastic bottles in supercapacitors

Scientists from the University of California, riverside have developed a technology to produce components for supercapacitors from regular waste. We are talking about polyethylene terephthalate or PET, which is made most of plastic bottles. This material is from an economic point of view is significantly superior to high-tech raw materials, like graphene or carbon nanotubes. […]

Looks like a screwdriver of the XXI century

Recently Techcult wrote about the drill of the XXI century with a touchscreen and lasers. But the screwdriver is traditionally considered to be more simple, reliable and very straightforward tool. What similar high-tech screwdriver advanced Italian production? And it is similar to the Kinetic device Driver. Kinetic Driver designed by the Italian designer Giacomo Di […]

Our Solar system is most similar to space croissant

The sun emits powerful electromagnetic winds that envelop the planet in our solar system like a giant bubble. This magnetic bubble is called the heliosphere and protects the planet from dangerous space radiation. Scientists have long believed that the heliosphere is in the form of a comet – with a distinct nose and long flowing […]

Some homemade masks turned out to be more dangerous than no

Despite the fact that the industry has recovered from the shock of the first days of the pandemic COVID-19 and now produces enough facial masks of different types, most people in the world due to various reasons use homemade versions. Everyone understands that they are less effective than professional medical model, but the question is: […]