Project

# Title Team Members TA Documents Sponsor
11 Automatic Bike Sensing Lanes
 Hann Diao
Jeremy Arroyo
 Sarath Saroj final_paper1.pdf
other2.pdf
other3.pdf
other4.pdf
photo1.jpeg
presentation1.pptx
proposal1.pdf
Automatic Bike Sensing Lanes


TEAM MEMBERS
Jeremy Arroyo (jarroyo4), Hann Diao (hannd2)

PROBLEM
Cycling around campuses and in major urban centers has become increasingly dangerous with the increase of population in these areas. Despite many attempts to make conditions safer for cyclists and pedestrians alike (i.e. cycling lanes), hits and near hits continue to be an issue. This can mainly be attributed to pedestrians’ lack of awareness when commuting due to having headphones on or being preoccupied with their cellphones.

SOLUTION
The solution we propose is an addition to existing bike lanes (simulated bike lanes for proof of concept) that will detect a cyclist and shine a light to make pedestrians and cars aware of their presence.

SOLUTION COMPONENTS
SUBSYSTEMS
Bike Detection
We will utilize proximity sensors to detect the presence of a bike in the bike lane. These sensors will be spaced out roughly 2 meters apart with attached LEDs. Upon sensing a bike, the following LEDs will light up to indicate an incoming bicycle.
Inter-sensor Communication
We would utilize an MCU to process the incoming signals from the proximity sensors. The MCU would then communicate with the corresponding LED units to light up in accordance with the bike’s location. We would also potentially process the acceleration of the bike to have LEDs light up according to the speed at which the bike is moving.
Power
We have two ideas in regards to powering this system. The first would be to utilize some arbitrary power source (i.e. a battery system) to emulate connecting our system to the grid or streetlights. This would be viable if we extended the scope towards integration within actual city infrastructure. The alternative would be to utilize some form of solar to power our LEDs as LEDs have a relatively low power consumption.
CRITERION FOR SUCCESS
A low-cost, and easily scalable system
Proficiently detects moving bicycles and lights LEDs accordingly
Variable LED display based on speed of bike

Covert Communication Device

Ahmad Abuisneineh, Srivardhan Sajja, Braeden Smith

Covert Communication Device

Featured Project

**Partners (seeking one additional partner)**: Braeden Smith (braeden2), Srivardhan Sajja (sajja3)

**Problem**: We imagine this product would have a primary use in military/law enforcement application -- especially in dangerous, high risk missions. During a house raid or other sensitive mission, maintaining a quiet profile and also having good situational awareness is essential. That mean's that normal two way radios can't work. And alternatives, like in-ear radios act as outside->in communication only and also reduce the ability to hear your surroundings.

**Solution**: We would provide a series of small pocketable devices with long battery that would use LoRa radios to provide a range of 1-5 miles. They would be rechargeable and have a single recessed soft-touch button that would allow someone to find it inside of pockets and tap it easily. The taps would be sent in real-time to all other devices, where they would be translated into silent but noticeable vibrations. (Every device can obviously TX/RX).

Essentially a team could use a set of predetermined signals or even morse code, to quickly and without loss of situational awareness communicate movements/instructions to others who are not within line-of-sight.

The following we would not consider part of the basic requirements for success, but additional goals if we are ahead of schedule:

We could also imagine a base-station which would allow someone using a computer to type simple text that would be sent out as morse code or other predetermined patterns. Additionally this base station would be able to record and monitor the traffic over the LoRa channels (including sender).

**Solutions Components**:

- **Charging and power systems**: the device would have a single USB-C/Microusb port that would connect to charging circuitry for the small Lithium-ion battery (150-500mAh). This USB port would also connect to the MCU. The subsystem would also be responsible to dropping the lion (3.7-4.2V to a stable 3.3V logic level). and providing power to the vibration motor.

- **RF Communications**: we would rely on externally produced RF transceivers that we would integrate into our PCB -- DLP-RFS1280, https://www.sparkfun.com/products/16871, https://www.adafruit.com/product/3073, .

-**Vibration**: We would have to research and source durable quiet, vibration motors that might even be adjustable in intensity

- **MCU**: We are likely to use the STM32 series of MCU's. We need it to communicate with the transceiver (probably SPI) and also control the vibration motor (by driving some transistor). The packets that we send would need to be encrypted (probably with AES). We would also need it to communicate to a host computer for programming via the same port.

- **Structural**: For this prototype, we'd imagine that a simple 3d printed case would be appropriate. We'd have to design something small and relatively ergonomic. We would have a single recessed location for the soft-touch button, that'd be easy to find by feel.

**Basic criterion for success:** We have at least two wireless devices that can reliably and quickly transfer button-presses to vibrations on the other device. It should operate at at *least* 1km LOS. It should be programmable + chargeable via USB. It should also be relatively compact in size and quiet to use.

**Additional Success Criterion:** we would have a separate, 3rd device that can stay permanently connected to a computer. It would provide some software that would be able to send and receive from the LoRa radio, especially ASCII -> morse code.