Project

# Title Team Members TA Documents Sponsor
74 Bike Theft Lock & Chain Detector
Jonathan Lee
Natasha Sherlock
Zhuoyuan Li
Tianxiang Zheng design_document2.pdf
final_paper1.pdf
photo1.jpg
photo2.jpg
photo3.jpg
presentation1.pdf
presentation2.pdf
proposal2.docx
proposal1.pdf
# BIKE THEFT LOCK & CHAIN DETECTOR (UPDATED)

Team Members:

- Natasha Sherlock (NNS5)

- Jonathan Lee (JCL4)

- Open Slot

# PROBLEM
In the Champaign-Urbana area, it is estimated that around 856-1070 bikes are stolen each year (bikelab.com), with most perpetrators going unapprehended and missing bikes seldom recovered. Bike theft often goes unnoticed, especially if the crime occurs at night or with few witnesses.

# SOLUTION

The proposed solution is a cable bike lock that detects when the cable is cut by passing current through the cable and building a sensor to detect an open circuit. When the cable is cut, our cameras positioned on the cable and bike will record images that may potentially identify the criminal. The cable will also send out a signal to an alarm, as well as relay all this information to the user via bluetooth/Wifi connection.

# SOLUTION COMPONENTS

## SUBSYSTEM 1: OPEN CIRCUIT DETECTION

This system will pass a small current through the cable, using the cable and analog components to create a circuit. When the cable gets cut, the circuit would open and this would send a signal to the microcontroller indicating that theft is taking place.

## SUBSYSTEM 2: IMAGE CAPTURING VIA CAMERA

Once the microcontroller detects the open circuit, the camera modules connected to the microcontroller will take an image that the user will be able to receive via bluetooth connection, potentially providing key evidence to identify the perpetrator.

## SUBSYSTEM 3: SOUND ALARM

When the inductance is changed, the microcontroller should send out a signal to electronic alarm devices to alert the user or anyone nearby to someone trying to cut through the cable. The user will then receive a notification on their phone with an option to turn off the alarm, or the alarm will sound for a set amount of time.

# CRITERION FOR SUCCESS

Our device will be able to:

- Detect when the cable is cut
- Send a signal to sound an alarm when the cable is cut
- Take a picture as the theft is being attempted
- Relay the images and alarm sounding to the user's phone

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.