Speaking of intelligent robots, everyone will not feel strange about this new name, but have you ever seen an "extended program" intelligent robot with self-awareness and continuous self-learning to gain enough cognitive ability? Let's take a look .
In 1961, the world's first industrial robot appeared on the GM production line, its name is Unimate. Half a century later, robots have spread across a wide range of industries, but most of them are still concentrated in the industrial sector, most of which are fixed on the ground and work on the assembly line. Now, with the development of robots, more and more robots have gone out of the laboratory, walked out of the factory, and entered our lives. The robot has broken the rigid image of the past and has become able to move anywhere, and the appearance is more and more like human beings. More importantly, they begin to be self-aware and interact with the environment.
Researchers at IIT (Italian Institute of Technology) in Genoa, Italy have created a humanoid robot called iCub (i taken from the iCub in "I, Robot" from the "The Book of the Jungle" The big human boy man-cub) is 104cm long and has a body shape similar to a 5-year-old child. The range of activities of the limbs can reach 53 degrees, with tactile and physical coordination, can catch things, play hide and seek, and even dance with music. Its eyes and head can track the movement of small balls in motion, and a customized pressure sensor is mounted on the arm.
It can be said that many technology powders are very familiar with this robot. Its reputation stems from the realization of the robot's leap from "obeying commands" to "having self-awareness", which is of pioneering significance in the history of robot development. With the gradual improvement of learning ability, iCub will become a robot assistant like the movie character "Big White" in the future. It will not regard you as a master, but as a friend and girlfriend, because it can listen to your troubles and even tease you. Open your mouth and smile, and then give you an idea to solve the problem.
In the process of building iCub, the researchers emphasized “learning ability learning†and used it as an open source platform to gain various behavioral and cognitive abilities through interaction with the environment and interaction with people. It absorbs the way the real brain works. The iCub control system designed by the researchers mimics the key processes in the mammalian brain. The interaction between these processes is governed by distributed adaptive control. This system is modeled on the cognitive structure of the brain.
Researchers need to set out to create a process that mimics the human ecological self. The key is to make the robot aware of its body and how it interacts with the surrounding environment. To achieve this, iCub requires an internal "body schema" that links physical components to body posture. Other robotics may program "body graphics" directly, but this is not the case with the Italian Institute of Technology, which gives iCub the ability to solve it on its own. It performs some small random movements and observes the behavioral consequences to learn from it. Humans exhibit similar exploratory behavior in the womb and early infancy, the term is called motor babbling. In other words, the robot can associate virtual complex behavior with visual auditory feedback so that sensory feedback is expected when it outputs behavior. This is similar to the process of learning to take objects and learn to speak, which means that humans understand their bodies in a roughly similar way.
Using this approach, researchers struggle to train iCub to distinguish between themselves and others, which is a fundamental aspect of ecological self. The motor babbling program also lets the robot learn how to pose a specific, defined pose. Combining this body model with an understanding of nearby and surface objects allows iCub to move around without colliding things.
Therefore, they did an experiment, the main goal is to enable iCub to make multiple contacts with the surrounding while maintaining a certain posture. In order to achieve the goal, they first need to know which parts of the robot body need to be touched. At the same time, we also need to know the pressure and torque that can maintain the stability of the robot.
To allow the iCub to come into contact with the surrounding environment while maintaining its intended position, key points are low-level joint torque control, task space reversal dynamic control, perceived planning, pressure relief, and joint torque prediction. They are important for robots to maintain balance, especially the task space reversal dynamic controller, which can be used to find these torques to keep the robot balanced while maintaining a particular position.
After implementing iCub's skills in contact with the environment, how do you interact with the environment? The answer given by the research team is this: they code the interaction between iCub and the surrounding environment in a special way, so that It more clearly understands the connection with the current situation.
Therefore, in this way, iCub has the ability to self-aware and perceive the surrounding environment. However, robots with "reading minds" are more or less scary, but in any case, can have such a "good girlfriend", why not?
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