• Title, Summary, Keyword: disaster investigation

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Performance Evaluation of LTE-VPN based Disaster Investigation System for Sharing Disaster Field Information (재난사고 정보공유를 위한 LTE-VPN기반 현장조사시스템 성능평가)

  • Kim, Seong Sam;Shin, Dong Yoon;Nho, Hyun Ju
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.11
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    • pp.602-609
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    • 2020
  • In the event of a large-scale disaster such as an earthquake, typhoon, landslide, and building collapse, the disaster situation awareness and timely disaster information sharing play a key role in the disaster response and decision-making stages for disaster management, such as disaster site control and evacuation of residents. In this paper, an exited field investigation system of NDMI (National Disaster Management Research Institute) was enhanced with an LTE-VPN- based wireless communication system to provide an effective on-site response in an urgent disaster situation and share observation data or analysis information acquired at the disaster fields in real-time. The required performance of wireless communication for the disaster field investigation system was then analyzed and evaluated. The experimental result for field data transmission performance of an advanced wireless communication investigation system showed that the UDP transmission performance of at least 4.1Mbps is required to ensure a seamless video conference system between disaster sites. In addition, a wireless communication bandwidth of approximately 10 Mbps should be guaranteed to smoothly share the communication and field data between the survey equipment currently mounted on the survey vehicle.

Development of Work Process on Natural Disaster Damage Investigation using Smartphones (스마트폰 기반 자연재난 피해조사 업무 프로세스 개발)

  • Choi, Woong Jung;Cho, Jae Woong
    • Journal of Korean Society of Disaster and Security
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    • v.5 no.2
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    • pp.1-10
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    • 2012
  • Natural disasters are occurring frequently due to typhoon and flood. Especially, damage scales are increasing these days because of climate change. When natural disasters occur, civil engineering officers investigate them for the recovery. If public facilities are damaged, the disaster damage investigation must be finished within 7days. Currently, natural disaster damage investigation is done on two levels, field investigation and data input into NDMS. However, having those two overlapped most of the time, and we must do subsidiary works things to register field investigation data into system. Work efficiency is decreased due to repetition of additional work. So, many civil engineering officers indicated problems such as lack of manpower and time. In this study, We developed work process on natural disaster damage investigation that involves using smart phone to solve problems such as shortage of time and manpower.

Remote Sensing and Geo-spatial Information Utilization for Managing Disaster in Korean Peninsula (한반도 재난 관리를 위한 원격탐사와 공간정보 활용기술)

  • Kim, Seongsam;Nho, Hyunju;Lee, Junwoo;Kim, Jinyoung;Kim, Jinsoo
    • Korean Journal of Remote Sensing
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    • v.36 no.5_4
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    • pp.1139-1151
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    • 2020
  • The National Disaster Management Research Institute(NDMI) has been developed technologies for disaster management applicability as well as disaster monitoring and damage analysis based on various earth observation platforms such as satellites, drones, and disaster field investigation vehicles. In this special issue, recent research results related to the disaster site investigation, satellite-based disaster management technology, and disaster information analysis using GIS conducted by NDMI are described in detail. Based on such achievements in the research of earth observation, we will continue to make efforts to improve the integrated national disaster investigation, analysis, and monitoring technology by connecting with the existing geo-spatial information service technology and various information collected at the disaster site.

Development of Natural Disaster Damage Investigation System using High Resolution Spatial Images (고해상도 공간영상을 이용한 자연재해 피해조사시스템 설계 및 구현)

  • Kim, Tae-Hoon;Kim, Kye-Hyun;Nam, Gi-Beom;Shim, Jae-Hyun;Choi, Woo-Jung;Cho, Myung-Hum
    • Journal of Korea Spatial Information System Society
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    • v.12 no.1
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    • pp.57-65
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    • 2010
  • In this study, disaster damage investigation system was developed using high resolution satellite images and GIS technique to afford effective damage investigation system for widely disaster damaged area. Study area was selected in Bonghwa, Gyungsangbukdo where high magnitude of damages from torrential rain has occurred at July in 2008. GIS DB was built using 1:5,000 topographic map, cadastral map, satellite image and aerial photo to apply for investigation algorithm. Disaster damage investigation system was developed using VB NET languages, ArcObject component and MS-SQL DBMS for effective management of damage informations. The system can finding damaged area comparing pre- and post-disaster images and drawing damaged area according to the damage item unit. Extracted object was saved in Shape file format and overlayed with background GIS DB for obtaining detail information of damaged area. Disaster damage investigation system using high resolution spatial images can extract damage information rapidly and highly reliably for widely disaster areas. This system can be expected to highly contributing to enhance the disaster prevention capabilities in national level field investigation supporting and establishing recovery plan etc. This system can be utilized at the plan of disaster prevention through digital damage information and linked in national disaster information management system. Further studies are needed to better improvement in system and cover for the linkage of damage information with digital disaster registry.

A Study on Site investigation for Cut Slope Management Manual preparation (절토사면 유지관리 매뉴얼 작성을 위한 현장조사에 관한 연구)

  • Ji, Young-Hwan;Chang, Buhm-Soo;Kim, Yong-Soo;Lee, Jong-Young
    • Proceedings of the Korean Geotechical Society Conference
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    • pp.825-830
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    • 2005
  • Cut slope and facility of management investigation is the protection of humans and properties. it is very important the prevention of disaster facility and the damage of the slope protection facility. It is very difficult to forecast slope stability, disaster possibility and collapse. It will be able to minimize the damage which it prepare against slope facility and cut slope of deformable investigation and collapse and the disaster. therefore those deformable investigation is important. Investigations execute upheaval, crack, sliding for slope and cut slope reinforcement. Investigation executes forecast in place where the construction problem, the effect which the damage in road traffic or the contiguity facility.

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A Study on the Monitoring Method of Landslide Damage Area Using UAV (UAV를 이용한 산사태 피해지역 모니터링 방법에 관한 연구)

  • Kim, Sung-Bo
    • Journal of the Korean Society of Industry Convergence
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    • v.23 no.6_2
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    • pp.1043-1050
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    • 2020
  • In this study, a study was presented on the monitoring technique of landslide area using UAV. In the case of disaster investigation using drone mapping, it can be used at various disaster sites. The mission can be carried out at various disaster sites, including surveys of damage to mountainous areas caused by landslides, building collapses surveys of flood damage, typhoons, earthquakes. The damage investigation plan using drone mapping is expected to be highly utilized at disaster sites where investigators cannot access it like in mountainous areas and where it is difficult to conduct direct damage investigations at the site. Drone mapping technology has many advantages in terms of disaster follow-up, such as recovery. Compared to the existing survey system, which was mainly carried out manually, the investigation time can be drastically reduced, and it can also respond to disaster sites that are difficult to carry out or are difficult to access directly. In addition, it is possible to establish and guide spatial data at the disaster site based on accurate mapping data from the time of the disaster, which has considerable strength in managing the situation of the disaster site, selecting priority areas for recovery, and establishing recovery plans. As such, drone mapping is a technology that can be used in a wide range of sites along with natural disasters and social disasters. If a damage investigation system is established through this, it is believed that it will contribute significantly to the rapid establishment of recovery plans along with the investigation of disaster response time and extent of damage recovery.

A Study on the Status Investigation for Establishing the Disaster Management Cooperation System at Educational Institutions (교육기관의 재난관리 협력체계 구축을 위한 실태조사 연구)

  • Park, Soyeon;Koo, Wonhoi;Baek, Minho
    • Journal of the Society of Disaster Information
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    • v.13 no.3
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    • pp.405-412
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    • 2017
  • Due to the increase in awareness of school safety after the Sewol ferry disaster, it became necessary to improve the capability to prevent a safety accident at school and to respond to an accident in the case of emergency as well as the awareness of safety issues. Therefore, it is necessary for educational institutions to reinforce safety measures autonomously, and the importance of supports and cooperation from agencies related to the safety of local community is also emphasized. However, it is quite difficult for schools and the Office of Education to prevent safety accidents only with their own capability, and safety accidents can be prevented through the supports from agencies involved in safety of local communities. Therefore, the status and cooperation system of educational institutions and relevant authorities were reviewed theoretically in this study. In addition, a field investigation was carried out to examine the awareness of disaster and safety, and cooperation status of officials in charge of practical disaster-related works. Moreover, this study intended to present a measure to establish the safety cooperation system between educational institutions and agencies involved in safety of local community in the future based on the findings.

Problems and Improvement Directions for Damage Investigation of Aquaculture Products from Natural Disaster (양식수산물 자연재해 피해조사의 문제점과 개선방향 연구)

  • Kang, Jong-Ho;Moon, Gun-Ho
    • The Journal of Fisheries Business Administration
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    • v.50 no.3
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    • pp.31-42
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    • 2019
  • This study aims to determine problems of the damage investigation system of aquaculture products resulting from natural disaster and to deduce improvement plans for such problems. The main problems revealed from this study were as follows: 1) detailed damage investigation is carried out only by one particular organization, 2) for aquaculture insurance subscribers another detailed damage investigation is conducted to reveal the causes of natural disaster by a joint investigator team formed according to a different legislation with a different purpose, 3) damage investigation is usually suffered from lack of labor, budget and time due to the restriction of natural damage to a certain period of season leading to the absence of quick reaction capability for irresistible natural disasters, and 4) there are no specified procedures and protocols for deciphering causes of a natural demage. The improvement plans to find solutions for such problems are as follows: 1) for the investigation, the object, method and role of the investigation organization should be clarified by improving the present legislation, 2) investigation methods for determining the demage causes should be systematized by making a manual to minimize disputes, and 3) supports for the investigation organization should be institutionalized to guarantee sufficient budget and manpower. Under the present circumstance with continuous natural damages, smooth procedures of damage compensation would lead to the management stability of aquaculture farms.

Applicability Assessment of Disaster Rapid Mapping: Focused on Fusion of Multi-sensing Data Derived from UAVs and Disaster Investigation Vehicle (재난조사 특수차량과 드론의 다중센서 자료융합을 통한 재난 긴급 맵핑의 활용성 평가)

  • Kim, Seongsam;Park, Jesung;Shin, Dongyoon;Yoo, Suhong;Sohn, Hong-Gyoo
    • Korean Journal of Remote Sensing
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    • v.35 no.5_2
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    • pp.841-850
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    • 2019
  • The purpose of this study is to strengthen the capability of rapid mapping for disaster through improving the positioning accuracy of mapping and fusion of multi-sensing point cloud data derived from Unmanned Aerial Vehicles (UAVs) and disaster investigation vehicle. The positioning accuracy was evaluated for two procedures of drone mapping with Agisoft PhotoScan: 1) general geo-referencing by self-calibration, 2) proposed geo-referencing with optimized camera model by using fixed accurate Interior Orientation Parameters (IOPs) derived from indoor camera calibration test and bundle adjustment. The analysis result of positioning accuracy showed that positioning RMS error was improved 2~3 m to 0.11~0.28 m in horizontal and 2.85 m to 0.45 m in vertical accuracy, respectively. In addition, proposed data fusion approach of multi-sensing point cloud with the constraints of the height showed that the point matching error was greatly reduced under about 0.07 m. Accordingly, our proposed data fusion approach will enable us to generate effectively and timelinessly ortho-imagery and high-resolution three dimensional geographic data for national disaster management in the future.

An Analysis on the Appropriation of Chemical Accident Evacuation Facility Using GIS - focused on Ulsan metropolitan city - (GIS 기법을 활용한 화학사고 대피시설의 적정성 분석 - 울산광역시를 대상으로 -)

  • SONG, Bong-Geun;LEE, Tae-Wook;KIM, Hyun-Ju;KIM, Tai-Hoon
    • Journal of the Korean Association of Geographic Information Studies
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    • v.21 no.1
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    • pp.71-82
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    • 2018
  • The purpose of this study is to minimize damage of chemical accidents through the appropriation analysis of evacuation facility position focused on Ulsan metropolitan city. For analysis, informations such as pollutant release and transfer registers(PRTR), population census, and evacuation facilities were used. After then, damage assessment of chemical accidents, accessibility and appropriation of evacuation facilities were analyzed. Damage of chemical accidents is high in around 5km of industrial complex there is dense of chemical facility and population. Evacuation facilities were mainly situated in hazard area of chemical accidents, but accessibility of evacuation facilities was vulnerable in chemical plant neighborhood. Therefore, safety check of deteriorated plants is important for prevention of chemical accidents. Also, effective evacuation plan considering capacity and scale of evacuation facilities will be established.