Project

# Title Team Members TA Documents Sponsor
10 Digital Controlled LED Rotating Display System
Most Commercializable
 Chentai (Seven) Yuan
Guanshujie Fu
Keyi Shen
Yichi Jin
 Adeel Ahmed design_document1.pdf
final_paper1.pdf
other9.pdf
proposal2.pdf
 Chushan Li
# TEAM MEMBERS
Chentai Yuan (chentai2)

Guanshujie Fu (gf9)

Keyi Shen (keyis2)

Yichi Jin (yichij2)

# TITLE OF THE PROJECT
Digital Controlled LED Rotating Display System

# PROBLEM
By visual persistence phenomenon, we can display any images and strings with a rotating LED array. Many devices based on this idea have been developed. However, there are some common issues to be solved. First, the images or strings to be displayed are pre-defined and cannot be changed in a real-time way. Second, the wired connection between some components may limit the rotation behavior, and harm the quality of display. Some economical wireless communication technologies and new ways to connect components can be applied to achieve a better display and real-time image update.

# SOLUTION OVERVIEW
We aim at developing a digital controlled LED rotating display system. A servo motor is controlled to drive the stick with one row of LED to do circular rotation. The connection between LEDs, control circuit, motor and other components should be simple but firm enough to suppose good display and high-speed rotation. Moreover, there is another part to handle users’ input and communicate with the display part via Bluetooth to update images in a real-time and wireless way.

# SOLUTION COMPONENTS
## Subsystem1: Display Subsystem
- LED Array that can display specific patterns.
- Controller and other components that can timely turn the status of LEDs to form aimed patterns.

## Subsystem2: Drive Subsystem
- Servo motor that drive of the LED array to do circular rotation.
- Controller that communicates with the motor to achieve precise rotation and position control.
- An outer shell that has mechanisms to fix the motor and LED array.

## Subsystem3: Logic and Interface Subsystem
- Input peripherals like keyboard to receive users’ input.
- A FPGA board for high-level logics to handle input, give output and communicate with other subsystems.
- Wireless communication protocol like Bluetooth used in communication.
- VGA display hardware offering Graphical User Interface.

# CRITERION OF SUCCESS
- Users can successfully recognize the real-time patterns to be displayed.
- It achieves the precise rotation and position control of motor.
- The motor can drive the LED array and any necessary components to rotate stably and safely.
- The LED array is under real-time control and responds rapidly.
- The communication between components has low latency and enough bandwidth.

# DISTRIBUTION OF WORK
- Chentai Yuan(ME): Mechanisms and servo motor control.
- Guanshujie Fu(CompE): Logic and Interface design and keyboard & VGA display implementation.
- Keyi Shen(EE): Wireless communication and servo motor control.
- Yichi Jin(EE): Circuit design, keyboard & VGA display implementation.

Augmenting AR/VR with Smell

Baoyi He, Yingying Liu, Kaiyuan Tan, Xiao Wang

Featured Project

# TEAM MEMBERS

- **Kaiyuan Tan** (kt19)

- **Baoyi He** (baoyihe2)

- **Xiao Wang** (xiaow4)

- **Yingying Liu** (yl73)

# TITLE OF THE PROJECT

Augmenting AR/VR with Smell

# PROBLEM

Augmented Reality (AR) and Virtual Reality (VR) technologies are rapidly growing and becoming more prevalent in our daily lives. However, these technologies have not yet fully addressed the sense of smell, which is a critical aspect of human experience. The absence of scent in AR/VR experiences limits the immersive potential of these technologies, preventing users from experiencing a full sensory experience.

# SOLUTION OVERVIEW

The solution is to augment AR/VR experiences with smell, enabling users to experience a full sensory experience. This will be achieved by incorporating hardware and software components that can simulate various scents in real-time, in response to events in the AR/VR environment. The solution will consist of a scent-emitting device and software that can track and simulate scents based on the user's location and orientation in the AR/VR environment.

# SOLUTION COMPONENTS

The solution will consist of the following components:

- **Scent-emitting device**: This device will be designed to emit various scents in real-time. It will be portable and lightweight, making it easy for users to carry around during AR/VR experiences.

- **Scent simulation software**: This software will be designed to track the user's location and orientation in the AR/VR environment and simulate scents accordingly. The software will use various algorithms to determine the intensity and duration of scent emissions.

- **AR/VR hardware**: The solution will require AR/VR hardware to create the immersive environment. This hardware will include AR/VR headsets, controllers, and other peripherals necessary to interact with the AR/VR environment.

# CRITERION OF SUCCESS

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

- **Immersive Experience**: The solution must provide an immersive AR/VR experience that incorporates smell as a key sensory input.

- **User Acceptance**: The solution must be accepted by users, who should be able to appreciate and enjoy the experience.

- **Technical Feasibility**: The solution must be technically feasible and reliable, with a low latency and high accuracy in scent simulation.

- **Scalability**: The solution should be scalable and adaptable to different AR/VR environments and hardware configurations.

- **Safety**: The solution must be safe for users and the environment, with proper ventilation and control mechanisms to prevent any harm or discomfort caused by excessive or inappropriate scent emissions.

# DISTRIBUTION OF WORK

- Model various scenerios based on AR/VR hardware. *(Tan)*

- Design algorithms which output the intensity and duration of scents based on the constructed scenerios. *(He & Liu)*

- Merge the scene with scents smoothly. *(He & Wang & Liu)*

- Design a protable scent-emitting device. *(Wang)*

- Test using real scents, invite people to experience and adjust based on feedback. *(All)*