• 한국공간정보시스템학회 논문지
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• 제1권1호
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• pp.49-55
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• 1999

지도에서의 정보추출은 GIS의 구축을 위하여 매우 필요한 사항이다. 본 논문에서는 특수목적으로 제작된 지도내의 가옥을 인식하는 방법을 제안하고자 한다. 가옥을 추출하기 위하여 윤곽선 추출 기법을 사용하였으며 격자에 붙은 가옥을 처리하기 위하여 런 길이 코딩 방법을 사용하였다. 도로와 경계선에 접합되어 있는 가옥을 처리하기 위하여 형태학적 연산을 수행하였으며 형태학적 연산에서 발생하는 오인식을 없애기 위하여 한글 문자부를 제거하는 작업을 수행하였다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2005년도 Proceedings of ISRS 2005
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• pp.123-125
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• 2005

Many researchers conducted the effort for improving the classification accuracy of satellite image. Most of the study has used optical spectrum information of each pixel for image classification. By applying this method for high resolution satellite image, number of class becomes increase. This situation is remarkable for house, because the roof of house has variety of many colors. Even if the classification is carried out for many classes, roof color information of each house is not necessary. Most of the case, we need the information that object is house or not. In this study, we propose the method for detecting the object by using Genetic Algorithms (GA). Aircraft was selected as object. It is easy for this object to detect in the airport. An aircraft was taken as a template. Object image was taken from QuickBird. Target image includes an aircraft and Haneda Airport. Chromosome has four or five parameters which are composed of number of template, position (x,y), rotation angle, rate of enlarge. Good results were obtained in the experiment.

• 한국컴퓨터정보학회논문지
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• 제27권4호
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• pp.111-118
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• 2022

최근 1인 고령 가구가 증가하고 있지만 1인 가구의 경우 집 안에서 위험 상황이 발생했을 때, 이를 외부에 알리기 힘들다. 이와 같은 1인 가구의 위험 상황을 탐지하기 위해 다양한 스마트홈 솔루션이 제안되고 있지만, 프라이버시 영역에 문제가 있는 홈 CCTV와 같은 영상 매체는 활용 어렵다. 그리고 단일 센서만을 활용하여 집안 내 고령자의 위험 상황을 분석할 경우, 데이터양의 한계로 정확한 상황해석이 제한 된다. 따라서 본 논문에서는 프라이버시를 지킬 수 있으며 실생활에 밀접한 2DLiDAR, 먼지, 음성 센서 간의 상관관계 따른 융합을 통한 집 내부의 위험 상황 탐지 융합 알고리즘을 제안한다. 또한, 본 논문은 실제 환경에서 수집한 데이터를 통해 알고리즘의 신뢰성을 증명한다. 제안하는 알고리즘이 탐지 가능한 위험 상황과 불가능한 상황을 제시한다. 본 논문은 집 안에서 위험 상황을 탐지하는 연구로써 1인 가구 사용자의 생활에 도움이 될 것이다.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2010년도 춘계학술대회
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• pp.860-863
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• 2010

센서 네트워크는 무선 네트워킹 기능이 있는 작고, 독립적인 장치이다. 실제 응용에서의 적응성을 향상시키기 위해서 에너지 소모를 최소화하는 것이 중요한 문제 중의 하나이다. 그러므로 무선 센서 네트워크를 평가하기 위해서는 정확한 에너지 모델이 필요하다. 센서 노드의 수명을 추정하기 위해 TinyOS로 동작하는 Telosb 플래폼 기반의 센서 노드의 에너지 특성을 측정하였다. 제안한 모델을 사용하면 배터리로 구동되는 센서 노드는 1시간 동안 10번 움직임을 감지한다면 약 6.925개월을 사용할 수 있다.

• 인터넷정보학회논문지
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• 제23권2호
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• pp.37-44
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• 2022

With the outbreak of COVID-19, non-face-to-face activities such as remote learning and telecommuting have increased rapidly. As a result, the number of people staying at home and the number of hours spent inside the house have also increased since the pandemic. Our team had previously worked on methods for detecting abnormal conditions in a person's health in various circumstances within the house by converging single sensor-based algorithms. In our previous research, we installed IoT sensors indoors to detect people emergency situations requiring aids, the scope of detection was limited to indoor space due to the limitation in sensors. In this study, we have come up with a system that integrates our previous study with a new method for detecting abnormal conditions in outdoor environments using outdoor security cameras and wearable devices. The proposed system enables users to be notified of emergency situations in both indoor and outdoor areas and respond to them as quickly as possible.

• 대한수의학회지
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• 제29권4호
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• pp.567-575
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• 1989

This study was conducted to evaluate the possibility of application of a microenzyme-linked immunosorbent assay(micro-ELISA) for the serodiagnosis of specific toxoplasma antibodies in swine sera and this test was performed as a microplate system by coating the polystyrene plates with toxoplasma soluble antigen, incubated serially diluted sera, then added horse radish peroxidase labelled goat anti-swine IgG(r) conjugate followed by o-phenylenediamine as substrate. The color development by enzyme-substrate reaction was determined by the photometric reading [ELISA reader at 490nm (OD)] and visual reading. The soluble antigen was prepared from the tachyzoites in mouse peritoneal cavity. A total of 1,200 swine sera from pig slaughter-house and a total of 116 swine sera from pig breeding station (S-C farm) were tested for the detection of antibodies to Toxoplasma gondii. The results obtained were summarized as follows: 1. The optimal reactions of indirect ELISA for the test sera were determined by the dilution of antigen 1:256 and 1:3,200 of horse radish peroxidase conjugate [anti-swine IgG(r)]. 2. The specific togoplasma antibody(IgG) in pigs infected with Tp artificially were detected as the serum titers of 1:64 or 1:128 at one week postinfection. 3. Of a total of 1,200 swine sera from pig slaughter-house 505 samples of sera were detected as positive (42.1%) and of a total of 116 swine sera from S-C pig breeding station 68 samples of sera as positive (58.6%). 4. The specific antibody(IgG) detection rates against a total of 1,200 test sera from pig slaughter-house were not significant between male (43.1%) and female (40.7%). 5. The indirect ELISA was proved to be a sensitive and specific procedure for the serodiagnosis of swine toxoplasmosis and also evaluated as an effective screening test for the large scale of test samples in laboratory.

• 융합정보논문지
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• 제7권4호
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• pp.91-96
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• 2017

본 논문에서는 나날이 늘고 있는 주거침입 범죄에 대응하여 아두이노와 스마트폰 앱을 이용하여 효율적으로 범죄에 대응하는 것을 목표로 하고 있다. 집 안 곳곳에 설치된 센서의 신호를 받아 스마트 폰의 앱과 연동을 시킨다. 앱을 사용하기 위해서 사용자의 스마트폰에서 앱을 다운받아 앱을 실행시키고 실행된 앱의 연동을 통해 집 내부에서만이 아닌 집 밖에서의 조작을 구동할 수 있다. 집안에 설치된 센서들 중 움직임 감지 센서를 통해 보안적인 면에서 활용도를 높이고, 가스누출 센서와 불꽃감지 센서들을 사용하여 화재의 위험을 쉽게 감지하여 초기에 예방을 할 수 있도록 하였다. 또한, 현관문을 스마트폰으로 원격 제어하는 기능이 있기 때문에 보안이 한 층 강화되었다. 향후 다양한 센서들을 추가하고, 블루투스 모듈 외에 와이파이 모듈로 발전시킬 수 있다.

• 한국농촌건축학회논문집
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• 제24권1호
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• pp.9-17
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• 2022

Rural spaces are increasingly valuable as areas for introducing renewable energy infrastructure to achieve carbon neutrality. Rural areas are the living grounds of rural residents, and the balance of conservation and development for rural areas is important for the introduction of reasonable facilities. In order to maintain a balance between development and preservation and to introduce reasonable renewable energy facilities, it is necessary to develop a current status survey and an effective survey method to utilize a space capable of introducing renewable energy facilities such as idle land and vacant houses. Therefore, this study was conducted to verify the readability using an unmanned aerial vehicle, and the main results are as follows. The detection of photovoltaic power generation facilities using unmanned aerial vehicles was effective in analyzing the location and area of photovoltaic panels located on the roofs of buildings, and it was possible to calculate the expected power generation by region through the area calculation of photovoltaic panels. The vacant house detection can be used to select an investigation target for an vacant house condition survey as it can identify damage to buildings that are expected to be empty houses, management status, and electricity supply facilities through aerial photos. It is judged that the unmanned aerial vehicle detection capability can be utilized as a method to improve the efficiency of investigation and supplement the data related to solar power generation facilities and vacant houses provided by public institutions. Although this study detected the status of solar power generation facilities and vacant houses through high-resolution aerial image analysis, as a follow-up study, automatic measurement methods using the temperature difference of solar power generation facilities and general characteristics of vacant houses that can be read from the air were investigated. If the deriving research is carried out, it is judged that it will be possible to contribute to the improvement of the accuracy of the detection result using the unmanned aerial vehicle and the expansion of the application range.

• International Journal of Internet, Broadcasting and Communication
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• 제15권4호
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• pp.250-260
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• 2023

In this paper, we designed a IoT(Internet of Things) sensor block embedded lightweight house deck structures that can be implemented using Carbon Fiber Reinforced Polymer(CFRP). Deck-Sensor interconnection interface block via IoT connectivity Hub that can mount external environmental sensors such as fire sensors on the Deck body itself was also proposed. Additionally we described the configuration of devices for data acquisition and analysis based on IoT environmental detection sensors that can be commonly installed and used on these deck bodies. On the other hand, received sensing data based monitoring user interface(UI) also developed and used for sensing data analysis for remote monitoring center. Through the implementation of such IoT-based sensor data transmission and collection analysis devices and UI software, this paper confirmed the availability of CFRP based lightweight House deck structure and possibility of CFRP deck-based IoT sensor data networking and analysis functions.

• 센서학회지
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• 제28권6호
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• pp.377-384
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• 2019

People currently spend more than 80% of their time indoors; therefore, the management of indoor air quality has become an important issue. The contamination of indoor air can cause sick house syndrome and various environmental diseases such as atopy and nephropathy. Formaldehyde gas, which is the main contaminant of indoor air, is lethal even with microscopic exposure; however, it is commonly used as an adhesive and waterproofing agent for indoor building materials. Therefore, there is a need for a gas sensor capable of detecting trace amounts of formaldehyde gas. In this review, we summarize recent studies on metal oxide-based semiconductor gas sensors for formaldehyde gas detection, methods to improve the gas-sensing properties of metal oxides of various dimensions, and the effects of catalysts for the detection of parts-per-billion level gases. Through this, we discuss the necessary characteristics of the metal oxidebased semiconductors for gas sensors for the development of next-generation sensors.