Dual-sided Peltier Elements for Rapid Thermal Feedback in Wearables

Kang, S., Kim, G., Hwang, S., Park, J., Elsharkawy, A., and Kim, S.

2024 IEEE ICRA Workshop on Wearable

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This paper introduces a motor-driven Peltier device designed to deliver immediate thermal sensations within extended reality (XR) environments. The system incorporates eight motor-driven Peltier elements, facilitating swift transitions between warm and cool sensations by rotating preheated or cooled elements to opposite sides. A multi-layer structure, comprising aluminum and silicone layers, ensures user comfort and safety while maintaining optimal temperatures for thermal stimuli. Time-temperature characteristic analysis demonstrates the system’s ability to provide warm and cool sensations efficiently, with a dual-sided lifetime of up to 206 seconds at a 2V input. Our system design is adaptable to various body parts and can be synchronized with corresponding visual stimuli to enhance the immersive sensation of virtual object interaction and information delivery.

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Finger Language Translation Device

im, J., Park, J., Jeong, J., and Kim, D.

2022 Summer Annual Conference of IEIE

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Sign language interpretation services through an interpreter are limited, so a sign language translator using artificial intelligence can help a lot in communication with the hearing impaired.BR In this paper, a portable finger sign language translation device that can be connected to a mobile phone is designed and implemented.BR The translation device translates finger motions and outputs them as voices, and recognizes the voice of the other party and outputs them as finger animations.

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Design Product Making Projcet

Making Project

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• Design Product Projects
  • Participated in the design and manufacturing of actual design products based on crowdfunding experience.
  • Involved in the production process of two design products, designing the manufacturing procedures and working on minimizing defects.

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You can check these projects! Just click Seulwa, Grass Pen(MoMA)

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Crowdfunding Project

Making Project

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• Crowdfunding Design Product Project
  • Project Overview
    • This project involves creating actual design products and selling them through crowdfunding.
  • Background
    • During the planning stage, South Korea was experiencing difficulties with vacations due to COVID-19, leading to widespread feelings of depression.
    • The aim was to create design products that evoke thoughts of summer vacations, particularly focusing on the beach, to uplift spirits.
  • Product Development
    • Using CNC as a professional processing equipment, candle holders were crafted by sculpting the shape of the seaside with wood and pouring resin into silicone molds.
    • Laser engraving was used to showcase effects similar to writing on a sandy beach.
  • Achievements
    • Achieved sales that exceeded 200% of the target amount.

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Butts Recycling Device

Making Project

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• Cigarette Butt Recycling Device Project
  • Motivation for Development
    • Aim to reduce costs associated with collecting and disposing of discarded cigarette butts.
    • Ultimate goal is to protect the local environment by reducing littered cigarette butts and creating a cleaner community.
  • Description of the Device
    • Features NFC reader for card and phone recognition.
    • Equipped with a speaker to provide voice guidance.
    • LCD displays membership number and accumulated points.
    • Built-in fan for smoke removal.
    • Separates cigarette ashes from the filter using a geared motor.
  • Production Process
    • Collected data on smoking rates and cigarette consumption in Korea.
    • Surveyed the willingness of smokers to participate in recycling programs with proper incentives.
    • Selected partner companies that are already engaged in cigarette butt recycling abroad.
  • Results and Expected Benefits
    • Annually, 80 billion cigarettes are consumed in Korea, generating 7,000 tons of waste.
    • Current waste incineration costs amount to 3 billion KRW per year.
    • Cigarette butts are not just waste but recyclable resources, with 95.4% of them being recyclable.
    • A significant percentage of smokers (80.1%) indicated they would participate in incentive-based recycling programs.
    • Expected to encourage the use of smoking booths and form a pleasant environment.
  • Market Research
    • Verified the feasibility of a cigarette butt recycling business through interviews with companies already conducting such projects abroad.

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For more information about this project, click Poster! (Written in Korean.)

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Tech Neck Prevention Web Service

Hackerton Project

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• Tech Neck Prevention Web Service
  • Developed a solution for tech neck during a hackathon project.
  • Monitors the user’s face distance from the screen using a webcam.
  • Alerts the user with an alarm or plays a custom stretching video if the face is too close to the screen for a certain duration.
  • Calculates the face-to-screen distance using the vertical distance between the shoulder line and the eyes.
  • Triggers an alert if the distance falls below a set threshold, indicating a tech neck situation.
  • Allows users to adjust the threshold distance according to their preference.
  • Provides access to usage data stored on the server to help users understand their computer usage habits better.

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Hands-on Booth Operation at the Korea Science Festival

Outreach activity

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• 3D Printer Education Activities
  • Conducted 3D printer usage training for university students and the general public
  • Guided from basic modeling to the printing process
  • Provided theoretical knowledge about various materials and printing technologies
• Laser Cutter Education Activities
  • Conducted training on the use of laser cutter equipment
  • Explained safety regulations and maintenance methods
  • Guided cutting and engraving techniques using various materials
• Arduino Assistant Instructor Activities
  • Assisted in teaching basic and advanced Arduino programming
  • Guided integration methods with various hardware such as sensors and motors
  • Supported students in planning and executing their projects

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Conducting Maker Classes

Teaching activity

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• 3D Printer Education Activities
  • Conducted 3D printer usage training for university students and the general public
  • Guided from basic modeling to the printing process
  • Provided theoretical knowledge about various materials and printing technologies
• Laser Cutter Education Activities
  • Conducted training on the use of laser cutter equipment
  • Explained safety regulations and maintenance methods
  • Guided cutting and engraving techniques using various materials
• Arduino Assistant Instructor Activities
  • Assisted in teaching basic and advanced Arduino programming
  • Guided integration methods with various hardware such as sensors and motors
  • Supported students in planning and executing their projects

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Creating Barrier-Free Maps

Volunteer activity

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• Barrier-Free Map Creation Project Leader
  • Led a volunteer project to create a barrier-free map in Gwangju, Dongmyeong-dong
  • Collaborated with team members to visit cafes and restaurants to assess accessibility
  • Focused on identifying and documenting barrier-free facilities
• Research and Documentation
  • Investigated the convenience of movement in wheelchair, table height, passage width, and presence of toilets for the disabled
  • Recorded detailed accessibility information for each location
  • Aimed to provide comprehensive data to reduce inequality for people with physical disabilities
• Support and Outcomes
  • Project supported by SK Group
  • Produced and published a barrier-free map with collected data
  • Contributed to the accessibility and convenience for people with physical disabilities in the community

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