• Transactions of the Korean Society of Mechanical Engineers A
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• v.37 no.6
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• pp.815-820
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• 2013

With the development of technology, there has been a considerable increase in the number of skyscrapers in the world. Accordingly, there are increasing requirements with regard to maintenance, such as cleaning, painting, and inspection. However, it is extremely dangerous to work on the walls of buildings, and falls from buildings have accounted for a large proportion of construction accidents. In particular, as the number of buildings with irregular shapes increases, the accident rate during maintenance work has increased each year, with most accidents leading to deaths. An alternative solution must be developed with the commercialization of automatic systems. In this study, fundamental research has been conducted for drafting and commercializing an automation tool with a built-in guide system that can perform cleaning.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2023.11a
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• pp.219-220
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• 2023

본 논문에서는 건축물의 고층화, 대형화로 외벽 청소, 도장, 견출, 검사등 작업시 손쉽고, 빠르며 경제적으로 작업을 위한 방법으로 작업의자형 달비계를 사용 하고 있으나 최근 3년간 유지·보수공사 작업시 근로자의 중대재해가 36명으로 신축·증축·재건축공사 2명으로 유지·보수공사에서 많은 중대재해가 발생되고 있는 실정으로 50억이상 신축 작업에서는 산업안전보건법에 의하여 관리감독자 및 안전관리자가 선임 되어 현장의 전반적인 안전관리 활동을 하고 있으나 50억 이하 소규모 작업장에서는 안전관리 할동이 전무한 실정이고 저가수주, 적정 공사기간 불가 및 산업안전보건관리비 미계상 등 근로자들에 대한 안전대책이 없고 외부 안전점검기관의 사각지대로 근로자의 안전 확보에 어려움이 있은 실정으로 사업주 및 근로자에 대한 안전교육 및 관리감독이 철저히 이루어져야 할 것이다

• ICROS
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• v.2 no.3
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• pp.16-24
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• 1996

선진각국에서는 여러분야에서 지능화 로봇이 연구되고 있다. 이동 로봇분야에서는 청소용 로봇, 경비용 로봇, 안내용 로봇 등을 개발하여 실용화 및 기업의 이미지 홍보를 위하여 사용하고 있으며 보다 지능화된 로봇을 구현하기 위해 Mapping 기술과 같은 요소기술에도 많은 연구가 이루어지고 있다. 더우기 작업조건이 어렵거나 특수한 환경, 예로서 고층빌딩, 건설현장 및 고온, 다습, 유독유해한 환경에서도 인간을 대신하여 작업을 수행할 수 있는 지능화 로봇의 연구도 활발히 진행되고 있다. 여기서는 이상에서 ICMR에 대하여 설명한다.

• International Journal of Highway Engineering
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• v.13 no.2
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• pp.187-193
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• 2011

The stormwater runoff from road or expressway is known as one of important nonpoint pollution sources. To reduce the pollutants discharge from road or expressway, many best management practices(BMPs) have been applied and planned. Among the BMPs, road sweeping can be effective way to prevent pollutant washoff to environment. This study is performed to evaluate the characteristics of particles collected from the road by sweeping car. Size distribution and pollutant concentration of particles were analyzed. Based on the pollutant concentration and the specification of road such as length, width, and unit for pollutant generation, total amount of pollutant to be removed by road sweeping was estimated. Most of sediments collected by road sweeping was classified into sandy soil and fraction of fine grained soil was low. Although the concentrations of pollutants such as heavy metals in road sediments did not exceed the soil contamination criteria, washout of pollutants during sweeping work by spraying water might cause leaching of pollutants contained in sediments and thus resulted in low pollutant concentrations. Reduced amounts of pollutant by road sweeping showed 31.4% TSS reduction for ${\bigcirc}{\bigcirc}$ region and 7.7% TSS for ${\triangle}{\triangle}$ region. Other pollutants showed low reduction rate, because of their leaching by water spraying. Results from this study indicate that detailed and well-planned investigation for the road sweeping is necessary for the accurate estimation of pollutant reduction from road or expressway.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.8
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• pp.1-8
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• 2020

Air ducts installed for ventilation inside buildings accumulate contaminants during their service life. Robots are installed to clean the air duct at low cost, but they are still not fully automated and depend on manpower. In this study, an intersection detection algorithm for autonomous driving was applied to an air duct cleaning robot. Autonomous driving of the robot was achieved by calculating the distance and angle between the extracted point and the center point through the intersection detection algorithm from the camera image mounted on the robot. The training data consisted of CAD images of the duct interior as well as the cross-point coordinates and angles between the two boundary lines. The deep learning-based CNN model was applied as a detection algorithm. For training, the cross-point coordinates were obtained from CAD images. The accuracy was determined based on the differences in the actual and predicted areas and distances. A cleaning robot prototype was designed, consisting of a frame, a Raspberry Pi computer, a control unit and a drive unit. The algorithm was validated by video imagery of the robot in operation. The algorithm can be applied to vehicles operating in similar environments.

• The Science & Technology
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• no.9 s.412
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• pp.6-8
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• 2003

'고흥 우주센터' 기공/ 한국, 물리올림피아드 첫 우승/ 세계 유수 R&D 연구센터 유치작업 착수/ 여학생 비율 높이는 이공계 대학에 장려금/ 2010년 유망 과학기술분야 직업 30종 선정/ 국내 인터넷 연구 2천 8백만 명/ 병원 · 백화점 등 레지오넬라균 주의보/ 세계 최초 위치인식기능 청소로봇 개발/ 붉은귀 거북, 하천 · 고궁서 생태계 어지럽힌다

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 2002.05a
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• pp.28-32
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• 2002

본 연구는 시멘트 저장 silo 내부의 적분(Coating) 청소(제거) 작업시 지속적으로 발생하는 적분 붕괴로 인한 산업사고 예방에 목적이 있다, 연구에서 제시된 개선방안의 골자는 시멘트 인출을 위해서 silo 내부로 공기를 송급하는 Aeration system에 냉동식 미압 air dryer를 적용하여 송급 공기를 제습함으로써 적분생성을 억제하는 것이다.(중략)

• The Journal of the Korea institute of electronic communication sciences
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• v.6 no.6
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• pp.909-914
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• 2011

In these days, according to the enhancement of the mobile communication technologies, location based services using the location and movements are vitalized. In this paper, we develop a private vehicle tracking system for garbage truck operation management using GPS and CDMA communication and Open map interface. The terminal equipment attached in vehicle receives the GPS signals and detect the position data including time, longitude, latitude, and altitude. And the terminal sends these data to the server PC through CDMA cellular network in fixed period. The server saves these data into database to process in map server program with which we can view real-time trace of moving vehicle. We apply our system to public garbage truck managing operation and we can increase operation efficiency by examine real-time working and moving path and by present reasonable operation rout.

• The Journal of the Korea institute of electronic communication sciences
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• v.5 no.5
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• pp.487-492
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• 2010

In this study, our system that the volume of collected human waste in the septic tank truck is measured accurately and the fee of disposing human waste can be calculated by using measured results has been developed. The level sensor and its circuits which can measure the height of the tank, the hand-held system that can be used by workers easily and simply with micro-controller have been developed. Also, this system has been built in the receipt printing function to charge for disposal fee. Even when working on a sloping field, this system can measure the accurate collected volume of human waste in the tank using the X-Y axis angle sensor. The results of this study expect that the popular complaints that generated from human waste can be reduced, the exportation possibility of our specialized systems can acquire foreign currency.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2011.11a
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• pp.195-196
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• 2011

Recently, the number of high-rise buildings has been on the rise, which has meant that maintenance cost has increased by two and three times, along with the increase in the construction cost. It is suggested that the use of an auto-cleaning robot could increase the productivity and safety of cleaning work, which is mostly done outside of a building. In particular, the guide rail on a high-rise building could be useful in this capacity, as it has the advantage of not being significantly influenced by factors of the external environment, including wind pressure. For this reason, this research is preliminary research into a cleaning automation for a high-rise building, and aims to draw up a scenario for the vertically moving robot.