Project

# Title Team Members TA Documents Sponsor
28 A Bio-inspired AI-based Underwater Locating System
 Haoyu Huang
Jiawei Wang
Xinchen Yin
Zaihe Zhang
Ziye Deng
 design_document1.docx
final_paper2.docx
final_paper3.docx
other1.docx
proposal1.pdf
 Huan Hu
Team members: Haoyu Huang(haoyuh3) Jiawei Wang(jiaweiw6) Xinchen Yin(xyin16) Zaihe Zhang(zaihez2) Ziye Deng(ziyed2)

# Problem
Localization of underwater objects has been an important research problem in the field of underwater development. Some researchers have found that the lateral line organs of fish present a promising idea for achieving near-field target awareness. The problem is how to develop a bionic device that can mimic the ability of fish lateral organ line to receive underwater vibration signals and analyze the position of a target object.

# Solution overview
Our solution of building an ai-based underwater locating system. The system will be built on the experiment platform which is an aquarium containing silicone oil. An oscillator powered by sinusoidal signal will be placed in different places in the aquarium to simulate the real vibration. The system consists of a pressure sensors array which detects pressure difference in the water to capture the vibration of oscillator. The sensors data will be collected by computer and a neural network will be trained to predict the location of Oscillator. The sensor array is an effective tool to locate object’s location underwater.

# Component
## Power system
-A 100 × 50 × 50 cm fish tank filled with kerosene up to half its height to simulate an underwater environment. \
-A vibrator to imitate the movement of an underwater entity. \
-A filament moving device to adjust the vibrator’s position. \
-A signal generator and power amplifier to drive the vibrator.

## Data collection
-A sensor array placed in the middle of the fish tank to gather environmental data. \
-3D printing device and material to produce a casing for sensors. \
-A data acquisition card to capture and transmit sensor data. \
-Data acquisition software to visualize and process the collected data.

# Criteria of success
## System accuracy
In a simulated underwater environment, the device should accurately predict the position of the oscillator within a predefined error range (e.g., ±5 cm).

## Data collection efficiency
The sensor array should reliably capture pressure differences in a silicone oil environment, and the data acquisition system should acquire and transmit data without significant loss or delay.

## System responsiveness
The system should be able to detect and predict the position of the oscillator within a reasonable time range (e.g., less than 1 second) after the oscillator begins to vibrate.

## Reliability
Under different conditions, such as the position of the oscillator, the frequency of vibration is different, the device should maintain stable performance.

Digital Controlled LED Rotating Display System

Guanshujie Fu, Yichi Jin, Keyi Shen, Chentai (Seven) Yuan

Featured Project

# 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.