• The Journal of the Korea Contents Association
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• v.16 no.8
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• pp.462-469
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• 2016

This study researched police intervention to ensure the safety of Multi-swarm events. And this study researched best practices of foreign countries. This study propose a solution. It used the situation to police intervention and domestic Multi-swarm events leading research and safety management systems. Safety management for multi-swarm events did ministry of public safety and security, local government, police department, fire department etc. Activities of Safety management for multi-swarm events was checked the risk level, safety management, safety planning and training, safety management in accordance with the Manual. But, safety management of police had Manual maintenance is necessary for the police forces and take advantage of, it is necessary to clarify the mission, it is necessary to configure the risk of a step-by-step checklist for police safety tips in detail. This study for solve the problem proposed the United States, United Kingdom, Germany, France, Australia, the case of the Japanese.

• Journal of Satellite, Information and Communications
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• v.1 no.2
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• pp.76-82
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• 2006

The Mission Control System for KOMPSAT-2 was developed by ETRI and is being operated at Satellite Control Center at KARI to monitor and control KOMPSAT-2 (KOrea Multi-Purpose Satellite) which was launched in July 28th, 2006. MCE provides the functions such as telemetry reception and processing, telecommand generation and transmission, satellite tracking and ranging, orbit prediction and determination, attitude maneuver planning, satellite simulation, etc. KOMPSAT-2 is the successor of KOMPSAT-1 which is an earth-observation satellite. KOMPSAT-2 has higher resolution image taking ability due to MSC (Multi Spectral Camera) payload in the satellite and precise orbit and attitude determination by Mission Control System. It can produce one meter resolution image compared to six meter resolution image by KOMPSAT-1.

• Journal of Astronomy and Space Sciences
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• v.18 no.3
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• pp.209-218
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• 2001

Global exposure time distribution through all-sky survey, one of main science missions of KAISTSAT-1, has been simulated. Exposure time distribution has its minimum on the celestial equator and increases with moving to polar regions according to the present mission operation scenario. SAA (South Atlantic Anomaly) and the moon can make further decreases of exposure time around the celestial equator Effects of SAA on all-sky survey exposure time can be compensated with a simple observational scheduling, orbit exchange between orbits allocated to all-sky survey passing through the SAA region and ones allocated to upper atmosphere observations not affected by SAA. It, however, seems that present exposure time distribution is not adequate for the concrete study of the evolution of interstellar medium. A scheme for active time allocation is needed for redistribution of exposure times weighted around the celestial poles, and additional studies on the advanced mission operation and the observational scheduling are also needed.

• Current Industrial and Technological Trends in Aerospace
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• v.6 no.2
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• pp.99-108
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• 2008

This paper entirely explains the Korean astronaut program from astronaut selection to launch and return and introduces technology and results through this program in detail. The Korean astronaut program launched Nov. 2005 with the objectives to develop the manned space technology such as astronaut selection, training and space experiment and to disseminate concerns to the public about the science and space. In 2006 to select the Korean astronauts, the standards for selecting astronauts were set and then the selection processes from 1st stage to 4th stage were performed. In 2007, the 2 Korean astronauts took the astronaut training and the 18 domestic science experiments and 3 international experiments which the Korean astronaut, Dr. Yi, performed in ISS last April were developed. In April 2008, the Korean astronaut was transported to ISS by Soyuz in Baikonur in Kazakhstan and returned to the ground with performing the mission and space experiments. This paper will explain these processes as the above(astronaut's selection, training, space experiment, etc.) in detail.

• Journal of the Korean Geographical Society
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• v.51 no.1
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• pp.57-75
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• 2016

University has various resources such as intellectual human resource, spatial resource and facilities, and economic resource. At the same time, universities are, in general, found upon fundamental mission of public service, as well as teaching and research. Recently in Korea, it has been argued that we should make use of such resource of universities in the process of urban regeneration through university-community partnership. Yet, these arguments are lack of concreteness: 'which' kind of resource for 'what' kind of problem, and 'how'. Therefore, this research examined the case of university-community partnership in Japan and tried to find of some implications to Korean society. The reason for examining Japanese case is because Japan has experienced similar problems that Korea face such as aging population, decrease in the number of student, deteriorations of existing urban area; there are respectable amount of similarities between Japan and Korea in political, social and economic context; and because Japan has proceeded regeneration of communities through university-community partnerships.

• Journal of Korean Society for Geospatial Information Science
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• v.5 no.2 s.10
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• pp.77-85
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• 1997

Researches in the field of Computer Graphics and Geographical Information Systems(GIS) have extensively studied the method of photo-realistic landscape modelling, because it have become a commom requirement in applications such as flight simulators, mission rehearsal, and construction planning. A common approach to the display of terrain uses a Digital Elevation Model(DEM). DEM is an evenly spaced array of the terrain elevation data and can be obtained from stereo satellite data. With the DEM data, the process of 3D terrain modelling consists of three steps. The first step is to extract the meaningful data (such as peak, pit, passes...) from DEM data based on LOD(Level Of Detail) criteria. The second is to construct the 3D surface by TIN, which represents a surface as a set of non-overlapping continuous triangular facets of irregular size and shape. The third is a rendering of 3D terrain model. The goal of this research is a construction of 3D terrain with TIN. To do this, we are going to app]y Radial Sweep Algorithm. Radial Sweep Algorithm for generating TIN works quickly and efficiently. However, it does not solve the problem caused by the approximated nature of triangulated surface. To solve this problem, this research derive improved radial sweep algorithms with the optimal triangle definition.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.41 no.5
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• pp.366-372
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• 2013

Korean lunar explorer will be launched by korean launcher KSLV-2 in the 2020s in accordance with national space development strategy. Korean lunar explorer is composed of two unmanned orbiter and lander and should be developed as small size and light weight within 550kg of launch mass due to launcher's loading capability. A structure of lunar explorer is required to have sufficient stiffness and strength under launch and operational environment as well as to accommodate mission equipment. This paper describes the result of a preliminary study on structural model design for korean lunar explorer.

• Journal of Satellite, Information and Communications
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• v.8 no.1
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• pp.35-39
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• 2013

Space technology is a core technology which is emerging as the most competitive industry in the 21st century. However, it is said that private enterprises may have some limitations to run the space business independently because the space industry requires not only to enormously spend the amount of investment at the beginning stage of business but also to have lots of difficulties to get the amount of investment in the short period of time. Therefore, the advanced countries of having the space industry such as America, Japan, France and so on have been developing the space technologies through the help of their governments to some level at the beginning stage of business. Korea established the space development promotion law in 2005. Also Korea has been making efforts to correct the national space development middle and long term basic plans. However, while Korea becomes the 8th economic country in the world, Korea does not have a large enterprise which has ability to supply the domestic satellite demands, and to export satellites to foreign countries by developing satellites without having any help from foreign companies. Therefore, this paper described the activating scheme of satellite industry to efficiently carry out the Korea's space development mission, and to enforce the global competitive power.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.16 no.12
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• pp.2808-2814
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• 2012

The most of military systems that developed today are composed with many sub-systems for mission execution. The test of military systems for delivery test of mass product such that part test, PCB test, component test, integration test. Improving productivity is minimize testing item by man and minimize kind of tester, so that decrease product cost by production time for test. PCB tester be developed many kind of test method that systems were developed by many different engineers. This article studies testing check point for testing that how to minimize of kind of tester, how to automatic test for all of function that have inputs and outputs. Development of tester for improving productivity requires classify functional allocation of main system and sub system, sub system require PCB for functional allocation start on preliminary design period for reducing testing item and testing fixture.

• The Journal of the Korea Contents Association
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• v.8 no.8
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• pp.37-46
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• 2008

Launch control system controls the sequence for launching missile in weapon systems. This system have to generate the engagement plan, input information and launch the missile in timeliness requirement. Such a system may fail to operate correctly either due to errors in hardware and software or due to violation of timing constraints. We presented fault-tolerant ethernet for embedded real-time system like launch control system. This approach is designed to handle network faults using dual commercial-off-the-shelf(COTS) network devices. To support fault-tolerant ethernet each node is composed dual channel ethernet and designed the communication middleware for network fault detect and recovery. Especially for time-critical system, the middleware is being developed to achieve that no point of network failure shall take down or cause loss of communication to network nodes.