• 한국산림과학회지
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• 제96권5호
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• pp.510-514
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• 2007

The main purpose of this study was to develop Mountain Search and Rescue System for enhancing search and rescue operations in the mountains. This study also focused on presenting an alternative to using a cellular phone for requesting rescue due to their unreliability in remote areas. This system is designed to help in the search and rescue of people in emergency situations in the mountains. It is composed of buzzer sensors, environmental information sensors, and a statistical analysis program. A key feature of this system is that it does not require an infrastructure of internet or CDMA networks for its operation in the mountains. The measure for the study was conducted by using a zigbee protocol analyzer, RF module and 433MHz Helical antenna to analyze the rate of data reception in relation to the distance between nodes. This system is applicable to mountains provided the distance between nodes is over 100 m and under 150 m.

• 한국산림과학회지
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• 제96권1호
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• pp.70-76
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• 2007

본 연구의 목적은 유비쿼터스 센서 네트워크 기반 산악조난구조시스템의 산악지형 적용 가능성을 평가하기 위하여 수행되었다. 이를 위하여 본 연구에서는 계룡산국립공원 동학사 탐방로 코스의 은선폭포에서 관음봉 구간에 10대의 산악조난구조시스템을 설치하여 조난구조 요청 신호의 송 수신율과 유비쿼터스 센서 네트워크의 안전성 파악을 위한 현장조사를 실시하였다. 조사결과 데이터 수신율은 최소 90.0% 이상으로 매우 높게 나타났으며, 유비쿼터스 센서 네트워크의 안전성 검증을 위해 설치된 10대의 조난구조시스템의 2개의 센서 중 1개의 센서를 임의로 오작동 상태로 설정하여 측정한 결과 데이터 수신율이 매우 안정적인 것으로 나타났다.

• 한국측량학회지
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• 제37권5호
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• pp.293-302
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• 2019

In mountain accident events, it is important for the search team commander to determine the search area in order to secure the Golden Time. Within this period, assistance and treatment to the concerned individual will most likely prevent further injuries and harm. This paper proposes a method to determine the search priority area based on missing persons behavior and missing persons incidents statistics. GIS (Geographic Information System) and MCDM (Multi Criteria Decision Making) are integrated by applying WLC (Weighted Linear Combination) techniques. Missing persons were classified into five types, and their behavioral characteristics were analyzed to extract seven geographic analysis factors. Next, index values were set up for each missing person and element according to the behavioral characteristics, and the raster data generated by multiplying the weight of each element are superimposed to define models to select search priority areas, where each weight is calculated from the AHP (Analytical Hierarchy Process) through a pairwise comparison method obtained from search operation experts. Finally, the model generated in this study was applied to a missing person case through a virtual missing scenario, the priority area was selected, and the behavioral characteristics and topographical characteristics of the missing persons were compared with the selected area. The resulting analysis results were verified by mountain rescue experts as 'appropriate' in terms of the behavior analysis, analysis factor extraction, experimental process, and results for the missing persons.

• 산업기술연구
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• 제27권B호
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• pp.53-58
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• 2007

In this paper, we propose a design of the implementation for a search and rescue system for mountain climbers and evaluate the performance of the system. Search and rescues of people in emergency situations in mountain areas have been difficult due to lack of information about their location. In the proposed design, several small and commonly-available RF-based sensors, some amount of storage and processing devices are used. Infestations offer geographically intermittent coverage at high speeds. The proposed mountain climber tracking system use the directed diffusion scheme combined with infostation system. We also analyze the performance of the proposed system with NS-2 simulation package. From the performance analysis results, we expect that the proposed system will be very useful to early detect climbers' locations in emergency situations in Korea mountain areas.

• 산업기술연구
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• 제27권B호
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• pp.37-42
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• 2007

A mobile ad hoc network (MANET) is a kind of wireless ad hoc network. It is a self-configuring network of mobile nodes connected by wireless links. Infostation is a lower cost and low power system that provides very high bit rate with limited coverage. In this study, we propose search and rescue system that combines MANET of climbers with Infostations. A climber shares location information of climbers with other climbers while climbing, and delivers the information to Infostations. This system is an intermittent network due to the mobility of nodes. From the system, we can track the locations of missing climbers. Ultimately, proposed system achieves low cost and reduces memory requirement using Infestations. We also analyze the performance of the proposed system by simulation. From the performance analysis results, we expect that the proposed system will be very useful to early detect climbers' locations in emergency situations in Korea mountain areas.

• 한국시뮬레이션학회논문지
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• 제31권3호
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• pp.55-61
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• 2022

현재 경찰과 소방이 범죄신고, 긴급출동과 같은 구조 상황발생 시 통화권영역 내에서는 이동통신 사업자가 구축한 네트워크,와이파이,GPS기반의 긴급 구조용 측위시스템을 활용하여 요구조자의 단말과 직접 연동하여 예상위치를 정밀 측위를 하고 있다. 그러나 산악구조의 경우 조난자가 산악지형의 음영지역에 위치하거나 단말의 방전(power off) 시에는 단말과 직접 연동하여 정밀 측위가 불가능하며 마지막 접속 기지국 정보만을 받고 있어 수색의 위치를 한정할 수 없으므로 구조 골든타임 확보가 어려운 상황이다. 본 논문에서는 개선방안으로 시계열 기지국 정보, 위치정보 및 조난자의 성별, 나이, 행동적 특성을 반영한 이동성 모델과 지능형 추론을 기반으로 하는 전파분석 및 위치추정 시뮬레이션과 같은 이동통신 포렌식 기술을 통해 조난자의 예상 위치정보의 확률에 따른 히트맵 방식의 시각화를 통해 위치정보의 정확성을 높여 소방, 수색대의 수색지역을 축소하여 신속하고 정확한 인명구조에 기여할 수 있기를 기대한다.