Project

# Title Team Members TA Documents Sponsor
26 Teaching Heat to Student
 Kaihua Hu
Tianyu Feng
Yongxin Xie
Ziang Liu
 design_document1.pdf
proposal1.pdf
 Wee-Liat Ong
# Team Member
- Kaihua Hu, kaihua2
- Tianyu Feng, tianyuf2
- Yongxin Xie, yjie3
- Ziang Liu, ziangl4

# Title
Teaching Heat to Student

# Problem
The need for an effective and engaging educational tool to introduce elementary and middle school students to fundamental concepts of heat transfer and thermal energy conversion.

# Solution Overview
We propose the design and manufacture of an integrated thermal experiment platform that provides a safe and hands-on environment for students. The platform will include visual demonstrations of heat conduction and convection, a coating for thermal radiation visualization, and an introduction to thermoelectricity.

# Solution Components
## Subsystem 1
Use a metal rod with one end heated and temperature sensors to detect every temperature on certain position, then visualize it on a computer. And we can use another hollow metal rod with fluid in it, detect and visualize the temperature in same way and show the influence of convection.

## Subsystem 2
Demonstrate the principle of electric heating material which could generate current when people put their hands on it and light up LEDs displaying 'ZJUI'.

## Subsystem 3
Design a coating material which could reflect certain wavelength of a light source and allow the electronicmagnetic wave from human to pass through. Demonstrating a scenario that people could feel cool with this material when received heat source radiation.

# Criterion for Success
- Engaging and safe educational experience.
- Clear understanding of heat transfer concepts by students.
- Successful demonstration of thermal radiation and thermoelectricity.

# Distribution of Work
- Kaihua Hu: Design and Manufacturing
- Tianyu Feng: Design and Manufacturing
- Yongxin Xie: Control and Electrical circuit
- Ziang Liu: Control and Electrical circuit

Seat U: Sensing System for Real-time Library Seat Occupation Detection

Jiayuan Huang, Hangzheng Lin, Jiaqi Lou, Hanyin Shao

Featured Project

# Problem

During the exam week, it is very difficult to find a seat in the library. Sometimes students cannot find a satisfying seat even if they walk through the library all around. Some students complain about unknown traffic in the library. For more convenient library seats seeking, students would like to know which other seats are empty ahead of time in order to decide whether they will go to the library and where to find available seats.

# Solution Overview

We will design a sensor-based device for each table to detect occupancy. The occupancy data will be uploaded through wifi to the cloud. There will be three states for each seat: occupied by people, occupied by items, or unoccupied. Then we will design an APP to visualize these data.

# Components

## The sensing subsystem:

• Data preprocessing and WiFi module to transfer data (ESP32)

• Multi-kinds of sensors to detect objects and collect data

• Wired power supply to support long-term real-time detection

## Human-computer interaction subsystem:

• Database server to store the collected data

• APP on the phone that allows clients to check the status of library seats

• It can indicate whether the seat is occupied with people (reserved by personal items), occupied without people, or available

# Criteria of Success

• Classify three different states of seats (occupied by people, occupied by items, or unoccupied)

• The accuracy of detecting whether a seat is reserved by items is above 90%

• The accuracy of detecting whether a seat is occupied by people is above 95%

• The sensor-based device APP is user-friendly and accurately visualizes the seat occupation

• The states of the seats get updated every 1 minute in the APP

• Adaptive to different kinds of table in the library (flexibility)

• Implement the database server bidirectionally: upload data from the device and download data to the APP