# Title Team Members TA Documents Sponsor
38 Automatic Ball Borrowing System
Jingyang Liu
Qihao Wang
Yang Xiao
Mickey Zhang other
At the ARC of our school, we can only borrow basketballs or other balls from staff. As a result, we want to build a machine to dispense those balls. By scanning their IDs, students can get those balls from the machine. Also, they can return the balls to the machine by putting back the balls and scanning their IDs again.
We use a RFID as students' ID and we have two buttons which are “borrow” and “return”. In the machine, we put balls in a channel. The ball comes out at the beginning of the channel and people return balls at the end of the channel. At the bottom of channel, there are pressure sensors to measure the weight of balls. As a result, we can know whether students return the ball or not. We will use LCD to display the remaining number of balls inside the channel. We will put a motor in the machine to push the ball out of the machine. The channel has a slope at the exit to prevent the balls from leaving the channel. In addition, there will be an IR sensor at the exit. If the sensor detects the ball, the motor will stop to make sure that exactly one ball will leave the channel. If a person returns other things instead of balls, the pressure sensor will detect it and turn on the alarm.
For our project, we adjust our scalability that we build a machine that takes golf balls or baseballs. However, we can apply our machine to take basketballs in real life in the future.

Amphibious Spherical Explorer

Kaiwen Chen, Junhao Su, Zhong Tan

Amphibious Spherical Explorer

Featured Project

The amphibious spherical explorer (ASE) is a spherical robot for home monitoring, outdoor adventure or hazardous environment surveillance. Due to the unique shape of the robot, ASE can travel across land, dessert, swamp or even water by itself, or be casted by other devices (e.g. slingshot) to the mission area. ASE has a motion-sensing system based on Inertial Measurement Unit (IMU) and rotary magnetic encoder, which allows the internal controller to adjust its speed and attitude properly. The well-designed control system makes the robot free of visible wobbliness when it is taking actions like acceleration, deceleration, turning and rest. ASE is also a platform for research on control system design. The parameters of the internal controller can be assigned by an external control panel in computer based on MATLAB Graphic User Interface (GUI) which communicates with the robot via a WiFi network generated by the robot. The response of the robot can be recorded and sent back to the control panel for further analysis. This project is completely open-sourced. People who are interested in the robot can continue this project for more interesting features, such as adding camera for real-time surveillance, or controller design based on machine learning.

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