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남민기,홍인식 한국지식정보기술학회 2017 한국지식정보기술학회 논문지 Vol.12 No.5
As the Internet of things has evolved recently, construction of smart city infrastructures is also actively proceeding. Smart City is a form in which telecommunication infrastructure facilities are connected to all places in a city like a human neural network to attract new investment and job creation and also to provide high- In a society where people and goods are always connected, and the solution to increase the economic power of the city, the movement of introduction in the whole world including Korea is increasing rapidly. As a result, interest in system, which is efficient for infrastructure management and advantageous for maintenance/repair, will increase. SmartSheet is widely used to protect and monitor underground facilities when building Smart City. The SmartSheet is manufactured in the form of a combination of a communication line and a detection tape used to detect various breakage (damage during construction, breakage due to aging, ground subsidence, sink hole, etc.). This makes it possible to judge whether there is an abnormality through the communication between smart sheets. It is hard to find out exactly where it is when it is damaged underground. Although the damage location can be measured by using the existing TDR, there is a blind spot which can not be measured in the vicinity, and it is also very expensive. In this paper, we design a hardware and dedicated detection program that finds faulty locations within tens of meters to 1km using a low cost embedded board. Circuits and software were constructed by analyzing the relationship between time constant - voltage and impedance. The input values measured by the 10-bit ADC are converted to the correct measurement distance on the table-driven correction algorithm. The proposed system can be applied to location detection such as underground facilities such as piping, road - bridge breakage, plant breakage, and pipeline damage in a building.
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현행(現行) 수의(壽衣) 착의법(着衣法)에 관(關)한 연구(硏究)
남민기 ( Min Ye Nam ),백영자 ( Young Ja Baik ) 한국패션비즈니스학회 1999 패션 비즈니스 Vol.3 No.2
A shroud is clothes for giving a dead person a bath and being finely dressed:though our routine clothes have been western, putting on a shroud has been kept comparatively well as a tradition of a conventional ceremony garments. This study is about the current using of dressing a shroud, and for presenting foundations of a way about dressing a shroud in order to make the most of this by everyone, therefore this research will be worthwhile to preserve the traditional custom of giving a dead person a bath and being finely dressed. 1. We must confirm the death of a person before we do Su-Si for controlling rightly a corse. Su-Si is ways of changing a clean clothes after bathing the dead person, tieing up hands, feet and ankles with a string, filling up a mouth, a nose and ears with a wad of cotton, laying down the dead person with his head toward east, and setting up a screen after covering the dead person with a bed sheet. 2. Here are processes of putting on a shroud. After the day of death, first of all, you must untie the string to control rightly a corpse, take off the clothes, and give a dead man a bath. You trim the dead person`s fingernails and toenails, put them in O-nang, then put his hands and feet in five pouches, finally put feet in korean socks and wrap with Ak-su. You put a underwear in a overwear in order to put on the clothes easily, and then put on an upper garments after putting on trousers. And put on Sb-sin After you wash the dead person`s face and his hair, you put gems and raw rice in his mouth, wrap head with cotton fabrics, and put hairs into five pouches, then put on a headgear which is filled with five pouches. 3. You tie up with hem cloth the dead person dressed a shroud after wrapping with Dae-ryum-km and So-ryum-km. 4. After you encoffin the dead person, you weave coffin strings with cotton fabrics in order to lift up the coffin easily, and lay down a red fabrics having white letters about the dead person`s name or social position onto the coffin, then cover the coffin with a coffin cover : finally you leave the coffin at the former place and set up screen.
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홍인식,강병모,남민기,오준석,김우빈 순천향대학교 부설 산업기술연구소 2014 순천향 산업기술연구소논문집 Vol.20 No.2
In this paper, using a simple Arduino board and the relay, we constitute a plurality of input ports. And we transmits the measured value to the server by using the Arduino which is a Wi-Fi network. Extracts the partial data DB from the configured DB. And we have implemented a graphical data display functions. The number of ports depends on the type of Arduino. And it is possible to 2n of the output provided by the Arduino. In this paper, we implement a voltage sensor meter in the 8-Port transmission and DB server was attempting to create. Voltage measurement port could be driven according to the application to attach the sensors for other purposes. The data collection server is implemented in PHP.
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딥러닝을 이용한 스마트팜 내부 온·습도 예측 알고리즘 개발 및 검증
조라훈 ( Lahoon Cho ),남민기 ( Minki Nam ),전영광 ( Youngkwang Jeon ),김석준 ( Seokjun Kim ),박승영 ( Seungyoung Park ),김대현 ( Daehyun Kim ) 한국농업기계학회 2021 한국농업기계학회 학술발표논문집 Vol.26 No.2
최근 국내를 비롯한 전 세계적으로 농업인구 고령화를 해결하고자 스마트팜에 대한 연구 및 기술개발활동이 활발하게 진행되고 있다. 국내에서 이루어지는 다양한 스마트팜 관련 연구 중 빅데이터와 인공지능 기술을 적용하기 위한 연구가 활발히 이루어지고 있지만 시설온실 내부 환경 예측 및 제어에 관한 연구는 미비한 실정이다. 본 연구는 강원도 인제에 위치한 약 3400평 규모의 파프리카 스마트팜에서 저장된 2020년 환경데이터와 LSTM 신경망을 활용하여 온실 내부 온·습도를 예측하는 딥러닝 알고리즘을 개발하였다. 알고리즘의 입력값은 4,5,7,8월의 외부광량과 외기온도로, 출력값은 시설 내부 온·습도로 각각 설정하였고 학습은 실제 농장 데이터와 출력값의 MSE(mean square error)를 최소화하는 것을 목표로 하여 진행되었다. 검증을 위해 6월의 환경 데이터를 알고리즘에 적용하여 출력된 온·습도와 실제 데이터를 비교한 결과 각각 결정계수(R-square)가 0.827, 0.689로 나타났다. 온실 내부 환경 예측 알고리즘의 정확도를 높이기 위하여 LSTM 신경망에 피드백(feedback)을 활용하여, 한 타임스텝에서 계산된 내부 온습도 결과가 다음 타임스텝의 입력으로 들어갈 수 있도록 알고리즘을 개선하였다. 검증을 위해 이전과 동일한 방식으로 예측된 온·습도와 실제데이터를 비교하였을 때 결정계수가 각각 0.939, 0.723으로 나타나 개선모델의 정확성이 기존 알고리즘 대비 높아진 것을 확인하였다. 딥러닝 기반의 알고리즘의 검증 결과 온도는 비교적 정확하게 예측이 가능하지만 상대습도의 경우 예측의 정확도가 떨어지는 것이 확인되었다. 향후 추가적인 실제농장 데이터 확보와 알고리즘 개선을 통해 내부 습도데이터의 예측 정확성을 높이기 위한 연구가 진행예정이다.
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