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박신우 ( Shin-woo Park ),조현민 ( Hyun-min Joe ) 한국센서학회 2024 센서학회지 Vol.33 No.1
Humanoid robots, designed to interact in human environments, require stable mobility to ensure safety. When a humanoid robot falls, it causes damage, breakdown, and potential harm to the robot. Therefore, fall detection is critical to preventing the robot from falling. Prevention of falling of a humanoid robot requires an operator controlling a crane. For efficient and safe walking control experiments, a system that can replace a crane operator is needed. To replace such a crane operator, it is essential to detect the falling conditions of humanoid robots. In this study, we propose falling detection methods using Convolution Neural Network (CNN) model. The image data of a humanoid robot are collected from various angles and environments. A large amount of data is collected by dividing video data into frames per second, and data augmentation techniques are used. The effectiveness of the proposed CNN model is verified by the experiments with the humanoid robot MAX-E1.
바이오리듬 분석을 통한 스마트조명 감성제어 서비스 개발
박혜빈(Hyebin Park),박신우(Shinwoo Park),조하나(Hana Cho),윤용익(Yongik Yoon) 한국정보과학회 2016 정보과학회 컴퓨팅의 실제 논문지 Vol.22 No.12
현재, 스마트 삶을 구현하기 위하여 사물인터넷(IoT : Internet of Things)에 이목이 집중되고 있다. 언제 어디서나 스마트폰으로 연결되어 있는 사물을 제어할 수 있게 되었고, 생활 밀접한 곳까지 사물인터넷 기술이 침투하게 되었다. 이에 따라 사용자의 신체 정보와 감성 정보를 수집하는 서비스가 주목을 받고 있다. 따라서, 본 연구에서는 생체가 지닌 내인성(內因性) 리듬인 바이오리듬을 활용하여 추가적인 요소를 수집 분석, 그에 따라 감성에 영향을 끼치는 조명 제어 서비스를 개발한다. 바이오리듬 PSI 학설에 따라, 탄생 순간부터 지니고 있다는 바이오리듬과 신체에 영향을 끼치는 기상 정보, 이동 거리 정보를 수집하여 바이오리듬 분석 알고리즘으로 계산한다. 그 후, 계산된 바이오리듬에 따라 감성을 조절할 수 있는 컬러테라피 조명을 제공, 감성을 조절하고 제어할 수 있게 한다. 이로써 사용자가 보다 편리한 조명제어를, 자신의 감성에 따른 컬러테라피 조명으로 감성을 조절, 제어하여 심신의 안정, 건강 관리, 사고 예방 등의 효과를 가질 수 있도록 연구하고자 한다. The advent of Internet of Things(IoT) has increased the need for development of smart life based on Information and Communication Technology(ICT). By using IoT technology, we are able to control connected appliances using smart devices, such as smart phone. To support the smart life, there is a need to utilize emotion information for human behavior, based on both biorhythm and environment information. Research towards this goal suggests a smart lamp control system that has an effect on the human emotion. According to the PSI theory, the control system calculates the biorhythm with an algorithm that uses the human biorhythm, weather factors and walking amounts. The smart lamp works with the recommended color lights that can control the feelings and emotions of the user. Here, we will show the effect of physical and mental stability, health care, and accident prevention.
평등전계에서 SF<sub>6</sub>/CF<sub>4</sub> 혼합가스의 AC절연내력 특성
황청호,박신우,김남렬,허창수,Hwang, Chung-Ho,Park, Woo-Shin,Kim, Nam-Ryul,Huh, Chang-Su 한국전기전자재료학회 2007 전기전자재료학회논문지 Vol.20 No.4
The excellent dielectric properties of $SF_6$(sulfur hexafluoride) have lead to its wide range of application in the field of high voltage insulation. Because there has been some recent concern regarding the environmental impacts of $SF_6$ binary gas mixtures, with $SF_6$ as the main component, have been the subject of active research. Scientists have long been interested in the possible use of gaseous fluorocarbons, including $CF_4$ (Carton Tetrafluoride), in high voltage applications due to their inert character and high dielectric strength. This paper presents experimental results concerning the AC breakdown characteristics lot various mixtures of $SF_6/CF_4$ in a test chamber and 25.8 kV GIS (Gas Insulation Switchgear) at practical pressures (0.1-04 MPa) and gap lengths (0.5 mm, 1 mm) in a test chamber. In the result, it was observed that an increase in the dielectric strength is attained through the addition of $SF_6$ to $CF_4$. It is possible to make an environment friendly gas insulation material while maintaining the dielectric strength by combing $SF_6$ and $CF_4$ which generates a lower level of the "global warming" effect.