Recently, three college students at the University of California, Davis, developed a self-rolling robotic ball using 3D printing . This robotic ball is able to track the specific electronic signals emitted by the electronic devices tied to people's ankles, so that they chase people like puppies, so the developers call them Naughty Ball.
The development team said they wanted to make a smart robot ball that didn't need to be remotely controlled by a handheld controller. The development team said they didn't like the design of the handheld controller because it affected the user's activity.
Therefore, in order to replace the handheld remote control, they use infrared tracking technology and indoor positioning technology, so that the robot ball can sense the user's position and the surrounding environment. The mechanical module wrapped in the ball can control itself to move toward or away from the user by changing the center of gravity.
They initially had two options to solve the object of the ballooning process. The first solution is to use an infrared sensor that is removed from the Wii handle or Wiimote to detect the infrared emitter attached to the user's wrist or ankle. The second solution uses a Bluetooth module mounted on the robot and utilizes indoor positioning.
This balloon will move or change direction with the help of an internal gyroscope without the need for external force.
The three members of the development team are Hengjiu Kang, Yi Lu and Yunan Song. Their design is clever, and a two-wheel balance robot is housed in a transparent plastic ball. The built-in battery powers the ballast and stepper motor. The 3D printed plastic wheel is responsible for balancing and manipulating the balloon. The upper part of the ball is fitted with most of the electronic components.
In addition, the development team connected a WiFi adapter, several motor drivers, and a 3D printed bracket with a BeagleBone Black board to secure several thermal imaging cameras along the inside of the sphere. These cameras are mainly used to track the wearer. Infrared emitter ankle bracelet on the foot.
They added that every Amoy balloon has a different "personality." While some versions of the ball try to avoid a certain user, others prefer to be close to humans.
"Some balls will lick your legs - just like your pet dog - but some will roll to other places as you approach it," they said in the project proposal. In addition, the team also added the ability to interact with the user for the Amoy balloon. When it comes into contact with people, it will reflect its "mood" by changing the color and making a sound.
Three people develop this project spent a total of less than $ 200, of which $ 40 spent on tools and $ 50 for the hardware controller and $ 40 3D printer hardware and mechanical structure, and $ 60 for the purchase of motors and sensors.
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