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.

Clickers for ZJUI Undergraduate

Bowen Li, Yue Qiu, Mu Xie, Qishen Zhou

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# TEAM MEMBERS

Bowen Li (bowenli5)

Qishen Zhou (qishenz2)

Yue Qiu (yueq4)

Mu Xie (muxie2)

# PROBLEM

I-clicker is a useful teaching assistant tool used in undergraduate school to satisfy the requirement of course digitization and efficiency. Nowadays, most of the i-clickers used on campus have the following problems: inconsistency, high response delay, poor signal, manual matching. We are committed to making an i-clicker for our ZJUI Campus, which is economical, using 2.4G Wi-Fi signal connection, and on the computer to achieve matching. At the same time, it has to deal with the drawbacks as mentioned above.

# SOLUTION OVERVIEW

Compared with wired machines and mobile phone software, wireless i-clickers have the following advantages: they are easy to carry, they can accurately match and identify user tags, they are difficult to cheat and would not distract students. A wireless voting system consists of a wireless i-clicker, a wireless receiver on the administrator side, and a corresponding software program. In order to solve the problem of signal reception which is common in schools, we decided to use 2.4GHz Wi-Fi signal for data transmission. In addition, different from other wireless voting devices that carry out identity confirmation and bind identity information on the hardware side, we decided to make an identity binding system on the software side, and at the same time return it in the hardware unit for customer confirmation.

# SOLUTION COMPONENTS

A mature i-clicker should have a hardware part and a software part. The hardware part needs economical and effective hardware logic design. These include the storage and transportation of user key signals through a single chip computer program, a simple LCD1602 display to provide immediate feedback, a 2.4GHz Wi-Fi transmit-receive device for many-to-one wireless signal transmission, and a beautiful shell design. While the software component includes the conversion of hardware signals to software signals, a mature voting system, authentication of device owners, and signal return to hardware systems.

## SCM HARDWARE LOGIC SYSTEM:

Use SCM to compile the LCD module, return user input value. STC89C52RC can easily do this. Pass data to the NRF wireless transmission module.

## WIRELESS 2.4G SIGNAL TRANSMISSION SYSTEM:

A wireless signal detector should be a many-to-one signal transmission system. Bluetooth is one-to-one and Radio frequency is expensive. So, Wi-Fi signal transmission is the best choice. Each detector should load a transmitter and a receiver to transmit data to the administrator and get the data transmitted by the software.

## HARDWARE-TO-SOFTWARE SIGNAL TRANSFER SYSTEM:

A Hard-to-Soft system is necessary in any similar design. We should write a driver to process data.

## SOFTWARE DATA PROCESSING SYSTEM:

Software ought to process the data signal accurately and generate feedback to each i-clicker. Specifically, a software is needed in our design. The administrator can get user data and display it visually through statistical charts. This system should also have the function to associate user information to their answer. This is designed to score. A return signal should also be designed here. Users can receive feedback on their detector screen.

## USER IDENTIFICATION SYSTEM ON SOFTWARE:

Give an internal ID number to each i-clicker. Bind identity information (such as NetID, Student number) to i-clicker internal ID number on the software. Users can get their binding information on their screen by pushing a specific button. This data will be reset when a new packet is returned by the administrator.

## 3D PRINT SHELL:

A beautiful shell that fits the hardware system is needed. The shell should not be too large and the buttons must fit into the hardware.

# CRITERION FOR SUCCESS

Stability: Signal should be received easily. Signal loss inside a room shouldn’t occur, especially when there is a gap of two chairs.

Affordability: I-clickers should have a low cost. This facilitates mass production and popularization on campus.

Efficiency: The process from keystroke to signal collection and transmission shouldn’t have a high delay.

Beauty: Shell design should be accepted widely and be accessible to 3D printing.

Feedback: Users should get the feedback from the administrator easily. This is useful in arousing study enthusiasm of students.

Concurrency: The system should handle signals from a great deal of students in a short period correctly.

# DISTRIBUTION OF WORK

Qishen Zhou: Software data processing system and user information identification system.

Bowen Li: Hardware-to-software data transfer system and SCM hardware logic system.

Yue Qiu: Wireless signal transmission system and processing the data returned from the administrator.

Mu Xie: 3D print shell design and physical setup for the hardware part.