# Title Team Members TA Documents Sponsor
38 Automatic Ball Borrowing System
Jingyang Liu
Qihao Wang
Yang Xiao
Mickey Zhang design_document0.pdf
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.

Wireless IntraNetwork

Daniel Gardner, Jeeth Suresh

Wireless IntraNetwork

Featured Project

There is a drastic lack of networking infrastructure in unstable or remote areas, where businesses don’t think they can reliably recoup the large initial cost of construction. Our goal is to bring the internet to these areas. We will use a network of extremely affordable (<$20, made possible by IoT technology) solar-powered nodes that communicate via Wi-Fi with one another and personal devices, donated through organizations such as OLPC, creating an intranet. Each node covers an area approximately 600-800ft in every direction with 4MB/s access and 16GB of cached data, saving valuable bandwidth. Internal communication applications will be provided, minimizing expensive and slow global internet connections. Several solutions exist, but all have failed due to costs of over $200/node or the lack of networking capability.

To connect to the internet at large, a more powerful “server” may be added. This server hooks into the network like other nodes, but contains a cellular connection to connect to the global internet. Any device on the network will be able to access the web via the server’s connection, effectively spreading the cost of a single cellular data plan (which is too expensive for individuals in rural areas). The server also contains a continually-updated several-terabyte cache of educational data and programs, such as Wikipedia and Project Gutenberg. This data gives students and educators high-speed access to resources. Working in harmony, these two components foster economic growth and education, while significantly reducing the costs of adding future infrastructure.