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Robotic Arm Reacts on the Spot, Catches Objects in Under Five Hundredths of a Second

A robotic arm developed in the Learning Algorithms and Systems Laboratory (LASA) at the Swiss Federal Institute of Technology in Lausanne is capable of reacting on the spot and grasping objects with complex shapes and trajectories in less than five hundredths of a second. The arm measures about 1.5 meters long and keeps an upright position. It has three joints and a sophisticated hand with four fingers. "Increasingly present in our daily lives and used to perform various tasks, robots will be able to either catch or dodge complex objects in full-motion," says Aude Billard, head of LASA. "Not only do we need machines able to react on the spot, but also to predict the moving object's dynamics and generate a movement in the opposite direction."

Topics:
Automation Motion Control Robotics

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    Transcript

    00:00:08 we teach a lot how to predict a moving object after that we teach a lot where breath and how to move each arms I think the main novelty uh we bring uh to object catching is the is in the way we transfer information from a human to the robot we call this programming by demonstration we do not have to explicitly specify the task or the object's motion uh the robot can just

    00:00:32 observe the task from a human and uh observe the object flying through the air a number of times to build a model of it and then use this model for catching in real time the goal is to develop controllers that enable these robots to interact with human inhabited environments where things can change uh in a fraction of seconds and so they need to be able to leverage on the very

    00:00:55 fast computer and the very fast motor that drives them and for that we need to have controllers that adapt rapidly to changes of course this controller can be used for many different other application um typically U catching people that are in danger of falling catching object that may fall onto people that also applies to any controller for vehicle robots here

    00:01:16 you're seeing in arm robots but it could also be a car and car needs to be able to react very rapidly to incoming traffic and so this is also one of our example of reacting and catching or avoiding things extraordin rapidly