• 농촌지도와개발
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• 제11권1호
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• pp.191-207
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• 2004

This study was focused on the development of greenhouse management and environmental control system using internet. The essence of this system were remote automatic control unit connected with greenhouse environmental control according to the growth stages of crops, The specific objectives of the study were; 1) to analyze need of greenhouse environmental remote control system, 2) to investigate the important functions related to greenhouse management program, 3) to explore the possibility of diffusing the system using internet.The study was carried out through review of related literature and need assessment from the research and extension workers in charge of greenhouse management using questionnaire survey, interview and field study. The results of the study were summarized as fallows: 1) About 89% of respondents responded positively on the need to establish automatic control system using internet. 2) The greenhouse management and environmental control system using internet was possible to control the greenhouse in remote, automatic, and simultaneous manner, and additionally by cellular phone in emergent situation. 3) The system was possible to precisely control the greenhouse environment, and it was able to connect the environmental control data with information on growth of crops. 4) By networking the farmer, extension educator of agricultural technology center and researcher, web based farm consulting was possible through the system. Based on the results of the study recommendations were suggested as follows: 1) Thorough spot inspections and field trials should be performed before the diffusion of this system. 2) The costs of the system installation and maintenance should be moderate. 3) The operation of the system should be simple and easy for tamers to adopt. 4) National support should be made to build better internet infrastructure in rural areas.

• 한국환경생태학회지
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• 제29권2호
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• pp.174-183
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• 2015

We have conducted a verification test of correlation between bird community indices and bird sound recording results in order to use the equipment which deals with the automatic sound collecting system, the song meter. The study areas include four sites which are Gombaeryoung and Zochimryoung in Jeombongsan Mountain and Jookryoung and Gochiryoung in Sobaeksan National Park. We collected the bird sound data five times using a sound recorder and field survey results in the same place of the study site. As a result of the sound recording from the field survey, the species recorded by three researchers of sound analyst include common resident species or species which have a relatively conspicuous call and song. On the contrary, the species recorded by only one researcher are a relatively rare or inconspicuous species or was familiar with the personal experiences of each researcher. The number of species recorded by only one researcher totaled fourteen species (36.8 %), and that of two researchers totaled twelve species (31.6 %), and that of three researchers totaled twelve species (31.6 %). The correlations of the number of species among three researchers was not significant in some results, but the sum or maximum count of the number of species was useful to estimate a significant correlation between the result of researchers and the indices of field surveys. As a result of correlation analysis by using sound recordings, the maximum number of species among the three researchers significantly correlated with the number of species, the species diversity index and the species abundance index in the field survey at the same site, however it did not correlate with the number of individuals and species evenness index. As a result of sound analysis collected from the stationary sound recording system; song meter, the number of frequencies in bird songs and calls correlated with the number of species in the field survey at the same site. The number of calls and songs decreased as time went by. Finally, we could test the active time range and change the activity strength by using a sound recording system. In particular, that sound recording system is able to collect data in same time and site, so it is expected so that the equipment not only replenish a shortage of researchers and survey periods in field research in a short term monitoring survey, but also be able to acquire statistical objectivity.

• 환경정책연구
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• 제8권1호
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• pp.31-48
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• 2009

부산시 환경소음수준의 연속적 측정이 가능한 소음자동측정 망의 합리적 설치 운영은 부산시의 정온한 환경구축 정책 수립을 위한 중요한 관건이 될 수 있다. 도시 내의 환경소음 수준은 지역 환경수준에 영향을 미치는 제반 요인들의 복합적 작용에 의하여 결정된다. 따라서 정확한 환경소음수준의 측정이 선결되어야만 올바른 환경소음 개선대책의 수립과 추진이 가능하다. 현재 국내에서는 환경소음 실태파악 및 소음저감정책 기초 자료의 확보를 위해 최근에 소음자동측정 망을 구축 중에 있다. 또한 소음측정 망이 설치 운영되는 지역의 경우 측정망 자료의 공개를 통하여 해당 지역의 환경소음 수준을 표시하고 있으나, 측정결과가 시민들이 느끼는 체감 소음을 제대로 반영하지 못하는 것으로 인식되고 있다. 가장 주된 논거는 측정 자료의 신뢰성 부족과 측정망의 불합리한 설치장소로 요약할 수 있다. 본 연구는 현재 부산시 지역에 설치되어 있는 8개 소음자동측정 망의 설치 운영실태 분석에 주안점을 두고 있다.

• 한국의류학회지
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• 제20권1호
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• pp.54-65
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• 1996

The purposes of this study were 1) to present the optimum slacks pattern for young men, 2) to develope a methodology to draft basic slacks pattern using AutoCAD The total crotch legth and the shape of the crutch line were determined by anthropometric data analysis. The total crotch length was calculated with the waist girth, the hip girth and the crotch length measurements. The anthropometric data utilized for this procedure was National Anthropometric Survey of Korea, 1992. And multidimensional anthropometric measurements were carried out for 6 male college students between the age of 18 to 24. The subjects were measured with the Martin's anthropometer and the sliding gauge. Mean, standard deviation and t-test were performed for statistical analysis of the data. The automatic drafting method was programmed by AutoLISP in AutoCAD. The automatic drafting was based on the Muller's slacks pattern drafting method, the measurements of slacks construction components and the curve of crotch line. The crotch line was drafted using of the arc function in AutoCAD. The total crotch length was calcuated using the multiple regression equation. The experimental pattern developed to accomodate individual body wleasurements expected to produce customized apparel production in QRS(Quick Response System) production system.

• 한국도서관정보학회지
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• 제41권1호
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• pp.149-165
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• 2010

이 연구에서는 기존의 과학기술학회마을에서 제공하고 있는 일반 검색서비스에 대해서 분석하고 이를 기반으로 과학기술학회마을 논문 서비스에 적합한 개인화 검색서비스들을 개발하였다. 즉, 질의어 기반의 개인화 검색시스템, 논문의 공동 저자 기반의 내비게이션 시스템, 논문의 저자 키워드 기반 주제어 자동 추천 시스템과 유사한 사용자 자동 추천 시스템들이 있다. 이 연구에서는 설문 조사를 통해서 KISTI 과학기술학회마을 논문 서비스에 적합한 개인화 서비스를 모색하였다.

• 수산해양기술연구
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• 제56권1호
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• pp.45-54
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• 2020

In this study, an automatic system for improving the working environment and increasing production efficiency of a laver aquaculture industry in Korea was developed by combining a hydraulic control system and a load cell in a current landing work of the laver. The improved gathering laver system allowed the automatic gathering process of the laver in the sea with the hydraulic control system connected to a cutting machine of the laver on the operating ship, which has been used for gathering the laver semi-automatically in a form of the traditional farming method. The transporting process of the laver from an operating ship to the land was improved as follows. A frame installed on the operating ship and the bag nets were designed and made to hold about 1,000 kg of the laver inside. The bag nets contain the laver on the improved operating ship were tied in knots and hooked on a crane using a load cell. The weight is measured immediately by lifting the bag nets through the load cell system. Weight information is communicated to the fishermen and successful bidders through the application. The advantages of the improved system can help fishermen to fish by improving their working environment and increasing production efficiency. The field survey to improve the landing operation of the laver aquaculture was conducted in Gangjin, Goheung, Shinan, Wando, Jindo, and Haenam in South Jeonnam Province. A total of 10 sites including Gunsan in Jeonbuk Province, Daebu Island in Ansan City, Jebu Island in Hwaseong City in Gyeonggi Province, and Seocheon in Chungnam Province were searched to collect data. Prototypes of the system were tested at the auction house of laver located in Goheung, where laver collection using hydraulic control and landing using road cell could be improved.

• 수산해양기술연구
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• 제57권4호
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• pp.302-315
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• 2021

In this study, factors such as improvement of a fishing process and safety, reduction of the labor force and headcount and development of the automation technology for offshore (eel and crab) pot fishing vessels were analyzed. A questionnaire survey was conducted to analyze and select the key factors using independent/paired sample t-test and correlation analysis, and a living lab was operated with ship owners, skippers and experts to discuss practical needs of the site. From the result of questionnaire survey and field requirements, it was possible to understand the level of awareness of ship safety, general safety equipment, fishing work process and fishing safety equipment from the point of view of the field. In addition, there were differences in the measurement results of each items because the working environment and experience were different according to the position of the ship owner and the skipper. The results of the questionnaire survey and various perceptions of field stakeholders were reflected when analyzing the fishing system and fishing process to choose the development equipment applicable to the field. From the analysis results, the selected development equipment based on the fishing equipment and process currently in operation are pot washing device, catch separation and fish hold injection device, length limit regulations and bait ejection device after use, automatic main line winding device, bait crusher, automatic (crab) pot hauling separator and so on.

• 한국지형학회지
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• 제26권2호
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• pp.69-84
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• 2019

The purpose of this study is to extract lineaments in the southeastern part of the Gaeum Fault System, and to understand their characteristics and a relationship between them and fault activation. The lineaments were extracted using a multi-layered analysis based on a digital elevation model (5 m resolution), aerial photos, and satellite images. First-grade lineaments inferred as an high-activity along them were classified based on the displacement of the Quaternary deposits and the distribution of fault-related landforms. The results of classifying the first-grade lineaments were verified by fieldwork and electrical resistivity survey. In the study area of 510 km², a total of 222 lineaments was identified, and their total length was 333.4 km. Six grade lineaments were identified, and their total length was 11.2 km. The lineaments showed high-density distribution in the region along the Geumcheon, Gaeum, Ubo fault, and a boundary of the Hwasan cauldron consisting the Gaeum Fault System. They generally have WNW-ESE trend, which is the same direction with the strike of Gaeum Fault System. Electrical resistivity survey was conducted on eight survey lines crossing the first-grade lineament. A low-resistivity zone, which is assumed to be a fault damage zone, has been identified across almost all survey lines (except for only one survey line). The visual (naked eyes) detecting of the lineament was evaluated to be less objectivity than the automatic extraction using the algorithm. However, the results of electrical resistivity survey showed that first-grade lineament extracted by visual detecting was 83% reliable for inferred fault detection. These results showed that objective visual detection results can be derived from multi-layered analysis based on tectonic geomorphology.

• 한국ITS학회 논문지
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• 제22권2호
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• pp.93-104
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• 2023

도로법에 의거한 도로교통량 상시조사는 매설식 AVC를 통해 12종 차종분류가 이루어지고 있다. 하지만 매설식 AVC 장비는 차량과의 마찰, 도로 균열, 소성변형, 도로공사로 인한 센서의 물리적 파손 등으로 인해 장비 가동률이 낮고, 수집 정보의 정확도와 신뢰도 저하 문제가 발생하고 있다. 이로인해 장비보수 등 유지비용 또한 증가하고 있다. 이러한 문제를 해결하고자 비매설식 AVC 장비 도입을 위한 연구가 진행되고 있으나, 차종을 분류하기 위해 복수의 장비 또는 교통량 정보 매칭을 위한 별도의 DB 구축·운영이 필요하였다. 이에 본 연구에서는 자동차 관리법에 근거하여 운영 중인 자동차관리정보시스템(VMIS)의 차량 제원 정보와 번호판 자동인식 기술(ANPR)을 활용한 12종 차종분류 방안을 마련하고자 하였다. 이를 통해 기존 도로교통량 조사체계를 개선하고 자동차 제원 정보를 활용하여 친환경 차량 분류 등 도로교통량 통계 고도화, 다변화에 기여할 수 있을 것으로 기대된다.

• 한국정보통신학회논문지
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• 제13권10호
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• pp.2019-2029
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• 2009

해양안전 제고를 위해서 국내에서 운영 중인 MCS(Monitoring, Control and Surveillance) 시스템으로는 AIS(Automatic Identification System)와 LRIT(Long-Range Identification and Tracking) 기술에 기반을 둔 VMS(Vessel Monitoring System)와 RFID(Radio Frequency IDentification) 기술을 활용하고 있는 선박프리패스 시스템, 수협중앙회의 어업정보통신이 있다. 본 논문에서는 각 시스템의 기반 기술 현황을 정리하고, 각 시스템들의 역할과 기능을 비교하며, 각 시스템의 진화 방향과 이들을 유기적으로 연동하기 위해 수행되어야 하는 과제들을 정리하였다.