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Shim, Jooeun,Ko, Jooyoung,Shim, Jaechang Korea Multimedia Society 2015 The journal of multimedia information system Vol.2 No.1
The aim of this study was to develop and analyze a short course educating App Inventor and Arduino that showed the importance of software for youth. The course consists of a total of 10 missions for a 4 hour course divided into 2 parts, each 2 hours respectively. We conducted a basic course of Arduino for hardware and software, Processing for server programming, and App Inventor for programming for smartphones. The final mission was to send a signal to a server with a smartphone and to control light connected to a relay which passes Arduino connected with a server and serial communication. Participants completed 95% of missions, and we found the course had an educational effect for improving creativity and realization of software importance.
A Study on the Short Range Wireless Communication of Smart Clothing for Elderly and the Infirm
Jooyoung Ko,Jaechang Shim,Hyenki Kim 보안공학연구지원센터 2015 International Journal of Software Engineering and Vol.9 No.3
Through prolongation of life expectancy and development of medical technology in modern society, population of elderly is sharply rising. The elderly need prompt assistance when emergency situations occur in everyday life. Therefore there are studies being done to help health maintenance and everyday life for the elderly including emergency situation monitoring. Smart clothing is an electronic equipment system that can be worn on the body created through joint study of electronics and clothing. This study explores short range wireless communication that can be easily applied to smart clothing that the elderly use. The study was conducted through implementing a system using wireless communication and through implementing a system combining Bluetooth, ZigBee, and WiFi.
고주영(Jooyoung Ko),심재창(Jaechang Shim),김현기(Hyenki Kim) 한국정보기술학회 2010 Proceedings of KIIT Conference Vol.2010 No.-
온라인시험은 시험 감독이 어려우므로 다양한 방법으로 수험자를 인증하는 방법이 제시되었다. 본 연구에서는 온라인 시험을 위한 통합 시스템을 구현하였다. 키보드의 입력 패턴을 분석하는 키보드 입력 방법과 수험자의 개인정보를 이용한 무작위 질문을 통한 인증 방법을 통합하여 구현하였다. 대리시험지가 비록 키보드 입력과정을 통과하더라도 재인증 과정을 거치게 함으로써 수험자 본인인지 구별하는 방법이다. 통합 시스템을 활용함으로써 온라인 시험에서 수험자 인증에서 불필요한 과정들을 줄이고 정확성을 높이고자 한다. Online test is difficult to supervise an examination therefore, they proposed variety of methods on examinees authentication's methods. In this paper, we have implemented for integrations system for online tests. We implemented of the keyboard input method that is analysis the keyboard input patterns and random asking method that is using examinees's personal informations. Although proxy examinees passed the keyboard authentication step, but they have to process re-authentication. So, the system can check the examinees are oneself or not. By integrated system we hope for reduce unnecessary processes and improvement accuracy on online test.
A Comparison of the Construction for IoT System in Smart Clothing
Ko, Jooyoung,Shim, Jaechang Korea Multimedia Society 2015 The journal of multimedia information system Vol.2 No.4
Recently, as microcomputers and sensors have been miniaturized due to dropdown of their market rates, this lead to a favorable environment for implementing the Internet of Things. Smart clothing refers to a system which can be wearable or portable, and allows people to communicate or conduct sensing. Applying the Internet of things, the role of the server computer is to receive and process data obtained from the sensor. An ordinary PC can act as a server but during the implementation of IoT, a PC has limited application due to a large size and the inconvenient portability. This study proposes a model that allows a variety of functions while implementation with the server from the sensing using the Arduino and Raspberry Pi. If we apply this proposed model, everyone can easily and inexpensively experience mobile IoT system.