Project

# Title Team Members TA Documents Sponsor
80 MazEscape
 Jatin Tahiliani
Jayanto Mukherjee
Will Knox
 Aishee Mondal other1.pdf
Maze Quiz
Jayanto Mukherjee(jayanto2) Jatin Tahiliani(jatint2) Will Knox (wk9)

Problem

Modern-day theme park immersive games have become stale and predictable, so we wanted to make them more entertaining by seeing if it is possible to mix some of them. So, we devised a fun idea for a mix between a maze and an escape room where the participants will enter a labyrinth and answer questions to move onto the next level or to the next room and complete the game.

Solution

To tackle this challenge, we have decided that there will be a set of four smart lock systems, two of which will have an LCD screen along with a keypad with which the user will be able to interact with the whole system, and the other two will be the emergency escape lock system. Each set of smart lock systems will be attached to a door that will open up to the next part of the maze or the next level or to a door that will take them out of the maze and back to the starting point. The questions that will be asked on each of the smart locks will be related to small puzzles or general knowledge questions that they will get one chance to answer, as all the questions displayed will be multiple-choice. The players will answer the questions using the keypad by selecting one of four choices: A, B, C, or D.

There will be a total of two levels: an entry-level or the first level, which will be the first instance where the player will be asked to answer a question, and upon successfully answering the question, the system will unlock the gate and the player will be able to move onto the next level and which will be the second or the final level. The player will then again be asked to answer a question, and if they get the correct answer, they exit the maze and claim their prize. If, however, in any of the two levels, the player selects the wrong answer, then the smart lock will send a signal automatically to the escape smart lock system, which will be put on an escape gate, to unlock the gate so that the player can leave the game and go back to the starting point. Each of the two smart locks which will have an LCD screen, will also have a motion sensor so that the smart lock is automatically able to detect if a player has approached it, and then it can display its question.

The smart lock systems which will ask the questions will also be able to communicate with each other so that the user is not introduced to the same question.

The player will also have an additional option to leave the game by pressing a leave button on the keypad, upon which the smart lock system will send the escape lock system a signal to unlock the gate.

Solution Components

Subsystem Mechanical subsystem:

We will use a 1602 LCD Display Module to display the problems the user will solve and a Numeric Keypad to input their answers. The LCD module will be very important for the user interface as all the information the user will need to use the device properly will be available on the LCD display. The user will be able to navigate the different functionalities using the keypad. The LCD module and the keypad will communicate via the SPI protocol with the microcontroller.

Subsystem Microcontroller:

The ESP32 microcontroller will have different types of questions organized into various kinds of questions (MC questions about trivia and general knowledge questions answered with pressing buttons).

Subsystem Wifi/Bluetooth:

We will use the ESP32 Microcontroller as a Wifi/Bluetooth module that will connect all the LCD screens together. The Bluetooth module will also allow the smart lock system to send the escape lock system a signal in case the player gets the question wrong or if they want to leave the game.

Subsystem Motion sensor:

To have a unique and interactive experience, we will implement an HC-SR501 Infrared PIR Motion Sensor Module that will interact with the user by detecting them, and then once the user is detected, it will prompt them with a question to unlock the system

Subsystem Mechanical Lock: We will use a sliding lock when the questions are answered. It will unlock the door, and it will lock after the user closes the door. When the questions are fully answered, the sliding lock will be in the form of a rod and operated by a motor on command.

Criterion For Success

High-level goals our project needs to accomplish to be effective Successfully update and randomize problem sets so that solutions aren’t memorized Ensure the door is unlocked when problems have been solved and locked when the closet is closed Make sure that the different lock systems receive data regarding questions and locking and unlocking via Bluetooth. Minimize power consumption of the system Adjust the difficulty of problems based on user feedback and experience

Recovery-Monitoring Knee Brace

Dong Hyun Lee, Jong Yoon Lee, Dennis Ryu

Featured Project

Problem:

Thanks to modern technology, it is easy to encounter a wide variety of wearable fitness devices such as Fitbit and Apple Watch in the market. Such devices are designed for average consumers who wish to track their lifestyle by counting steps or measuring heartbeats. However, it is rare to find a product for the actual patients who require both the real-time monitoring of a wearable device and the hard protection of a brace.

Personally, one of our teammates ruptured his front knee ACL and received reconstruction surgery a few years ago. After ACL surgery, it is common to wear a knee brace for about two to three months for protection from outside impacts, fast recovery, and restriction of movement. For a patient who is situated in rehabilitation after surgery, knee protection is an imperative recovery stage, but is often overlooked. One cannot deny that such a brace is also cumbersome to put on in the first place.

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Solution:

Our group aims to make a wearable device for people who require a knee brace by adding a health monitoring system onto an existing knee brace. The fundamental purpose is to protect the knee, but by adding a monitoring system we want to provide data and a platform for both doctor and patients so they can easily check the current status/progress of the injury.

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Audience:

1) Average person with leg problems

2) Athletes with leg injuries

3) Elderly people with discomforts

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Equipment:

Temperature sensors : perhaps in the form of electrodes, they will be used to measure the temperature of the swelling of the knee, which will indicate if recovery is going smoothly.

Pressure sensors : they will be calibrated such that a certain threshold of force must be applied by the brace to the leg. A snug fit is required for the brace to fulfill its job.

EMG circuit : we plan on constructing an EMG circuit based on op-amps, resistors, and capacitors. This will be the circuit that is intended for doctors, as it will detect muscle movement.

Development board: our main board will transmit the data from each of the sensors to a mobile interface via. Bluetooth. The user will be notified when the pressure sensors are not tight enough. For our purposes, the battery on the development will suffice, and we will not need additional dry cells.

The data will be transmitted to a mobile system, where it would also remind the user to wear the brace if taken off. To make sure the brace has a secure enough fit, pressure sensors will be calibrated to determine accordingly. We want to emphasize the hardware circuits that will be supplemented onto the leg brace.

We want to emphasize on the hardware circuit portion this brace contains. We have tested the temperature and pressure resistors on a breadboard by soldering them to resistors, and confirmed they work as intended by checking with a multimeter.

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