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The latest in Recycling: Robot Uses Artificial Intelligence to Sort Recyclables
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In 2011, the Finnish company Zen Robotics was first on the waste management scene
with their robotic waste sorter. Their system used a combination of computer vision,
machine learning, artificial intelligence (AI) to run synchronized robotic arms
to sort and pick recycled materials from moving conveyor belts. The company broke
ground with recycling stations that were tied together in a neural network and the
AI learned, from real-time feeds providing data from metal sensors, 3D laser cameras
and spectroscopic cameras, to select and sort the right items from the belt.
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Sadako Technologies of Spain has been working on an AI-infused garbage sorting system
on a smaller scale. The company uses proprietary algorithms that connect to a multi-layer
neural network system which lives in the cloud.
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Now, Clarke, a recycling robot that uses AI to identify a wide variety of plastic
food and beverage cartons so it can grab and separate them from the rest of the
recycling. The pilot is a collaboration by the Carton Council and two Denver-based
companies,
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According to Resource Recycling, Clarke uses an off-shelf robot that's been in use
for two decades in other industries. Clarke, installed in 2016, has constantly improved
its recycling skills, grabbing approximately 60 cartons per minute with near perfect
accuracy. Clarke has been programmed to recognize images from the cartons including
logos and package printing which it applies to the next round of sorting and grabbing.
The Clarke system has the ability to sort at super-human speeds, diverting material
for re-processing that might otherwise end up in landfill., Clarke's vision system
combined with the ability for recyclers to identify and sort new material better
and at the same time, sort on the line next to people, will make the difference
in adoption.
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This robot in Japan helps to save the environment by sorting plastic using lasers.
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This will allow for more than 45% of the total household plastic used to be recycled
rather than burned.
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Mitsubishi, IDEC, and Osaka University have teamed up to help with Japan's recycling
problems. They've built a 1.7m x 2.1m (5'6" x 6'9") robot that sorts plastic using
lasers. The new robot would be able to sort six different plastic types, including
PE and PP plastics which comprise 45% of the total, are not discernible by eye,
and which are normally burned with other refuse. With millions of Japanese households
generating millions of tons of plastic trash, adopting the robot for use in homes
could make a big positive impact on the environment. A smaller version of the robot
for home use is under development by IDEC, with a target cost around � 5 million
. Recycling plastic is just one more chore that robots have conquered on the path
to creating a completely automated house.
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The laser used by the recycling robot was developed by Osaka University's Photonics
Advanced Research Center. It accurately measures the reflectivity of the different
plastics to be able to tell them apart. That's a pretty mundane task for a complex
laser system
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Robots have taken over vacuuming floors, washing windows, and cleaning dishes. Slowly
but surely these automatons are checking things off your To Do list. While most
household robots don't have the speed or precision of their industrial counterparts
they're able to handle the more chaotic needs of a family. What may be surprising
to our future-looking 1950s ancestors, is that these robots are not humanoid, have
no cute personalities, and still require a great deal of human interaction. Some,
like a dishwasher, peoplr don't even consider to be robots. We may have to get
used to the idea that by the time a humanoid robot comes around, all the real work
will have been handled by the non-humanoid bots.
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By Sameer Joshi, Phd
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