Project

# Title Team Members TA Documents Sponsor
36 Environmental Sensing for cyclists
 Jiayi Ke
Yanda Hu
Zhaoxin Gu
 Yuchen He TA final_paper0.pdf
photo0.jpg
presentation0.pdf
proposal0.pdf
Gu Zhaoxin, NETID: zgu14
Hu Yanda, NETID: yandahu2
Jiayi Ke, NETID: jiayike2

Outline:
Turning your head will riding a bike can be dangerous. This project is inspired by the mirrors on some cars that shows an arrow when a car in next to you so you will be aware of those cars while merging line.

Hardware specifications:
This project aims to help cyclists detect hazards such as cars or motorcycles around them by using ultra sound. We are using several sonar sensors which sends signals to the motors to a vest the user is wearing in order to signal which side exists a hazard that will endanger the cyclist. The sonar sensors will go on my bike for the demo as there are many positions that sensors can be locked on without interfering with the basic functionalities of the bike. We are thinking of connecting ultrasound sensors in multiple directions pointing in the right, left and back direction, or on a servo in order to rotate and detect hazards in a larger area behind the user.
When the sensors are on the bike, we will use wireless Bluetooth or other method to connect the sonar sensors to the user’s motors in the vest. We looked up a sonar sensor which has a range of 4m which will be sufficient for hazard detection behind and beside the user.

Power specifications:
We will be using a power source that will provide power for the motors and circuit within the vest, and a separate power source such as a battery for the sonar sensors that will be connected to the bike.

Assistive Chessboard

Robert Kaufman, Rushi Patel, William Sun

Assistive Chessboard

Featured Project

Problem: It can be difficult for a new player to learn chess, especially if they have no one to play with. They would have to resort to online guides which can be distracting when playing with a real board. If they have no one to play with, they would again have to resort to online games which just don't have the same feel as real boards.

Proposal: We plan to create an assistive chess board. The board will have the following features:

-The board will be able to suggest a move by lighting up the square of the move-to space and square under the piece to move.

-The board will light up valid moves when a piece is picked up and flash the placed square if it is invalid.

-We will include a chess clock for timed play with stop buttons for players to signal the end of their turn.

-The player(s) will be able to select different standard time set-ups and preferences for the help displayed by the board.

Implementation Details: The board lights will be an RGB LED under each square of the board. Each chess piece will have a magnetic base which can be detected by a magnetic field sensor under each square. Each piece will have a different strength magnet inside it to ID which piece is what (ie. 6 different magnet sizes for the 6 different types of pieces). Black and white pieces will be distinguished by the polarity of the magnets. The strength and polarity will be read by the same magnetic field sensor under each square. The lights will have different colors for the different piece that it is representing as well as for different signals (ie. An invalid move will flash red).

The chess clock will consist of a 7-segment display in the form of (h:mm:ss) and there will be 2 stop buttons, one for each side, to signal when a player’s turn is over. A third button will be featured near the clock to act as a reset button. The combination of the two stop switches and reset button will be used to select the time mode for the clock. Each side of the board will also have a two toggle-able buttons or switches to control whether move help or suggested moves should be enabled on that side of the board. The state of the decision will be shown by a lit or unlit LED light near the relevant switch.

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