Project

# Title Team Members TA Documents Sponsor
47 Design of a Mechatronic Physical Road-Crossing Game System
Tianxi Zhu
Yuxuan Liu
Zhuo Li
Zihao Wu
# Problem

Most games today exist only in digital environments such as computers or mobile devices. While these games are entertaining, they do not demonstrate how mechanical systems, electronic circuits, sensors, and control systems interact in real physical systems.

For students studying mechatronics and embedded systems, building a physical interactive system provides a better understanding of how hardware and control systems work together.

The challenge is to design a system that coordinates multiple moving vehicles, detects collisions, and responds to player inputs while maintaining stable operation. The system should also be mechanically simple and reliable enough to operate repeatedly during demonstrations.

To address this challenge, we propose a physical road-crossing game system in which a player-controlled vehicle attempts to cross a simulated road while avoiding moving traffic vehicles.


# Solution Overview

The proposed system is a physical game platform that integrates mechanical structures, electronic circuits, sensors, and a microcontroller control system.

The platform represents a road environment. Several traffic vehicles move across the road along fixed tracks using motor-driven mechanisms. These vehicles simulate moving traffic and act as obstacles.

The player controls a small vehicle that attempts to cross the road from a starting position to a goal area. During the game, sensors monitor the positions of vehicles and detect collisions.

If the player vehicle collides with a traffic vehicle, the system registers a failure condition. If the player reaches the goal safely, the system registers a successful crossing.

A microcontroller coordinates all system operations including motor control, sensor monitoring, and game logic.


# Solution Components

The system is composed of several subsystems that together implement the road-crossing game.

## Subsystem I: Player Vehicle Control

- **Hardware I.a – Motor Drive**
A DC motor or servo motor drives the movement of the player vehicle.

- **Hardware I.b – User Input Interface**
Buttons or simple control inputs allow the player to control the vehicle.


## Subsystem II: Traffic Vehicle Motion

- **Hardware II.a – Motorized Traffic Vehicles**
Multiple vehicles move along fixed tracks across the road using DC motors.

- **Hardware II.b – Mechanical Track Structure**
A rail or track guides the motion of the traffic vehicles.


## Subsystem III: Collision Detection

- **Hardware III.a – Collision Sensors**
Sensors such as infrared sensors or contact switches detect collisions between vehicles.


## Subsystem IV: System Control

- **Hardware IV.a – Microcontroller Controller**
A microcontroller manages motor control, sensor input, and overall game logic.

# Criterion for Success

- Traffic vehicles move smoothly along their tracks in at least **8 out of 10 trials** without mechanical failure.

- The player vehicle responds correctly to user inputs and can cross the road.

- The collision detection system correctly detects collisions between vehicles.

- The system correctly determines game success or failure.

- All mechanical, electronic, and control subsystems operate together as a complete mechatronic system.

Electromagnetic Launch System with Switchblade Drone

Zheng Fang, Shuyang Qian, Xinyu Xia, Ruike Yan

Featured Project

# TEAM MEMBERS:

Shuyang Qian (sq8)

Zheng Fang (zhengf4)

Xinyu Xia (xinyux4)

Ruike Yan (ruikey2)

#TITLE OF THE PROJECT:

Electromagnetic Launch System with Switchblade Drone

# PROBLEM:

The Switchblade UAVs in use today tend to use pneumatics for power. It has been limited by its launching speed, cost, and portability. Making use of electromagnetic technology can improve the design. The project aims to develop an electromagnetic launch system which can launch switchblade drone well.

# SOLUTION OVERVIEW:

The project involves the development of an electromagnetic launch system and a switchable drone. The launch system is designed to propel a fixed-wing drone to a relatively high speed, using electromagnetic forces. The drone is equipped with a switchable wing mechanism that allows it to be housed within the launching track during launch and then deployed for flight after exiting the launching system. There are several main steps to finish the project well:

Design and construction of the launch system

Development of the foldable wing mechanism

Integration of subsystems

Testing and validation Overall, the project's success will depend on the effective implementation of these solutions, which will require careful planning, design, and testing to achieve the desired outcome of a functioning electromagnetic launch tube with a switchblade drone.

# SOLUTION COMPONENTS:

The solution will consist of the following components:

Electromagnetic launch system: the system includes multiple sets of acceleration coils, a base to hold the coils, a base with both a guide slot for the horizontal movement of the ejection ram, and a launch cart to hold the drone.

Switchblade drone: the system includes the main body of the drone, a pair of foldable wings, a folding device powered by a torsion spring, and an attachment device for the drone to the ejection ram.

Electrical control system: the system mainly controls the charging and discharging of the coil, the main components are Hall Effect Sensors, N-Channel Power MOSFETs, MOSFET Heatsinks, High Speed Power MOSFET Drivers, Resistors, Momentary Switch.

# CRITERION OF SUCCESS:

The success of the project will be determined by the following criteria:

Portability: Weather the system is small and portable enough to be carried in a suitcase or other boxes.

Speed of the launched plane: The speed of the plane needs to be fast enough so that it can travel enough distance and realize some additional functions.

Safety: The system should not cause danger to the operator or other people around it. Potential dangers are, for example, Mechanical scratches and electric leakage.

Stability: The success rate of launching the plane, and the route of the plane after each launching should be similar.

# DISTRIBUTION OF WORK:

Shuyang Qian (ME): Responsible for designing and constructing the mechanical part of electromagnetic launch system including the guide rails, fixing parts and installation of coils.

Zheng Fang (ECE): Responsible for designing and soldering the circuit for controlling the charging and discharging of the coil.

Xinyu Xia (ME): Responsible for designing and constructing the switchblade drone which can be accelerated by the electromagnetic launch system and whose foldable wings can run well.

Ruike Yan (EE): Responsible for designing the control system for switchblade drone which lets the drone continues to fly after leaving the electromagnetic launch system.