Right now, the main business of most educational robots is to teach children how to program, but it is true that the vast majority of educational robots only focus on programming and computer science courses. Recently, the Cellulo project of the EPFL in Switzerland has opened up new explorations. They are trying to find ways to improve the autonomy of small, inexpensive robots and let robots improve their children’s hands-on skills through interactive teaching. The Cellulo project planned for the beginning of the robot design to take into account the elements of "fire and anti-theft anti-bear child". Therefore, no matter how naughty the children are, these robots will not be played badly. Even if the bear children do not know how to start, the robot's flexible shell can also Resist shock. In order to transform the bear children into good students, EPFL has designed an autonomous education robot. From the aspect of design, Cellulo plans to have 6 illuminated buttons on the top of the robot and 3 permanent magnets for the omnidirectional ball on the bottom. With them, the robot can complete a complete set of actions. However, the guiding principle of the Cellulo robot is mainly cheap. The components it uses are available in the market. The current research version sells for only 135 US dollars (about 930 yuan). The bottom of the robot is equipped with a downward facing camera. By observing the optical particle pattern paper (which can be made by an ordinary office printer), it can find its own position. Its area covers up to 170 million square kilometers, and the entire earth is full. It's enough to play. With such a system (similar to that used by Anki Drive), the robot can complete its own positioning. Even if it is “moved in and out†by bear children, it will not be able to find the North. In addition, the system has an advantage that it can work stably even if the room is not well lit. From the technical point of view, the positioning accuracy error is only 0.27 mm, even if the correction is not performed, the angle error is only 1.5 degrees. However, it is not perfect. Without pattern paper, it will strike. Don't worry, because it's not fussy about pattern paper. As long as you have a printer on hand, it will immediately be full of blood. Cellulo robots are generally not alone, they are always used together, so that robots can show children real examples like atoms and planetary movements. The control of the robot's movement is a tablet computer, which is connected to the robot via Bluetooth and ensures that the little guys move in unison (even if the robot is taken away by the bear child). The EPFL has done a lot of experiments on the Cellulo robots and has experimented with many teaching courses such as collaborating on treasure hunts or understanding how the weather changes. In the teaching of changing weather, robots can be placed on maps and act as weather balloons, moving from a high pressure area to a low pressure area in a perceivable manner. Afterwards, the children will be able to place the robot in a suitable position according to the requirements and realize the profound meaning. Of course, such teaching can also be done through the application on the tablet, but EPFL researchers are still convinced that robotics is a more effective educational tool.
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