• Title/Summary/Keyword: 기능공

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OnDot: Braille Training System for the Blind (시각장애인을 위한 점자 교육 시스템)

  • Kim, Hak-Jin;Moon, Jun-Hyeok;Song, Min-Uk;Lee, Se-Min;Kong, Ki-sok
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.20 no.6
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    • pp.41-50
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    • 2020
  • This paper deals with the Braille Education System which complements the shortcomings of the existing Braille Learning Products. An application dedicated to the blind is configured to perform full functions through touch gestures and voice guidance for user convenience. Braille kit is produced for educational purposes through Arduino and 3D printing. The system supports the following functions. First, the learning of the most basic braille, such as initial consonants, final consonant, vowels, abbreviations, etc. Second, the ability to check learned braille by solving step quizzes. Third, translation of braille. Through the experiment, the recognition rate of touch gestures and the accuracy of braille expression were confirmed, and in case of translation, the translation was done as intended. The system allows blind people to learn braille efficiently.

A Study on the Design of Digital Twin System and Required Function for Underground Lifelines (지하공동구 디지털 트윈 체계 및 요구기능 설계에 관한 연구)

  • Jeong, Min-Woo;Lee, Hee-Seok;Shin, Dong-Bin
    • The Journal of the Korea Contents Association
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    • v.21 no.7
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    • pp.248-258
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    • 2021
  • 24-hour monitoring is required to maintain the city's lifeline function in the underground facility for public utilities. And it is necessary to develop technology to exchange the shortage of human resources. It is difficult to reflect the specificity of underground space management in general management methods. This study proposes underground facility for public utilities digital twin system requirements. The concept of space is divided into physical space and virtual space, and the physical space constitutes the type and layout of the sensor that is the basis for the construction of the multimodal image sensor system, and the virtual space constitutes the system architecture. It also suggested system functions according to the task. It will be effective in preventing disasters and maintaining the lifeline function of the city through the digital twins.