more than 10 university-industry-institute — cooperative
organizations as below.
€ Disaster-related Organizations (3) International
Charter-Space and Major Disasters, Korean Aerospace
Research Institute (KARI), National Disaster
Management Institute (NDMI)
€ Educational Sectors (3) : University of Seoul, Yonsei
University, Chungnam National University
€ Industrial Sectors (5) : Korea Cadastral Survey Co.,
Hansung T&I Co., Satrec Initiative Co., MD Korea Co.,
Geosystems Co.
This group actually joint following activities voluntarily; timely
acquire and process field investigation data of disaster area,
analyze collected data, and generate hazard maps for
emergency disaster response.
EMT
Î : i
» EMT planceadinc » Satelite imagery acquisition
Univ. of Seoul-driven | Yonsei Univ -driven KCSC-driven
Mapping Group Mapping Group Mapping Group
«Univ of Seoui(LSM Lab); »Yonsei Unt *KCSC
*Chungnam National Univ |! (GIS/RS Lab.) : a
"Hangsung T&i *GecSystems *MD Korea. Co
*Satrec-i
attude datà sv Terrestriai LOAR data
Collectian/cracessng
ANY Sara
Coilection/pracessing
Figure 2. Configuration of EMT
3. MULTI-SENSOR DATA ACQUISITION SYSTEM
In this study, Space-, Air- and ground-based platforms were
introduced for effective multi-sensor data acquisition and rapid
mapping of disaster area.
3.1 Small Manned Helicopter-based RAMS
At various emergency situations such as natural disasters or
accidents, the activation of effective disaster management
system is indispensable for rapid responses. As the part of an
applied research for rapid mapping, LSM laboratory of
University of Seoul has developed RAMS (Real-time Aerial
Monitoring System) which can monitor the emergency
situations from the air using different kinds of sensors: digital
camera, laser scanner, GPS, IMU etc. Each specification of
sensors mounted on RAMS respectively is same as Table 1.
Table 1. Sensor specification on board RAMS
Characte Model
i Description
ristics | (Manufacturer) p
Weight: 0.47 kg
Digital XMV-16M Frame rate: 3 Hz
Camera (Illunis) effective piKels: 467243248 Tih m
. |Weight: 7 kg
ee | sa arci
g Scanning rate: 6-80 Hz
OEMV-3 Position accuracy: 1.8 m
GPS weight: 0.075 kg
(Novately data rate: 20 Hz
velocity accuracy: 0.02 m/s
IU hi Uum weight: 3.4 kg
y data rate: 100 Hz
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XXXIX-B4, 2012
XXII ISPRS Congress, 25 August — 01 September 2012, Melbourne, Australia
It consists of both aerial and ground segments. The aerial
segment acquires the sensory data about the damaged areas and
transmits them to the ground segment in real-time. The ground
segment receives the sensory data and rapidly processes them to
generate geo-spatial information (Lee et al., 2011a).
3.2 Quadcopter Micro UAV : MD(MicroDrones)4-1000
Many studies have been performed for a wide range of
applications of UAV (Unmanned Aerial Vehicle) reached from
the civil and commercial market to the military field (Haarbrink
et al, 2006; Bendea et al, 2008; Everaerts, E. 2008;
Grenzdórffe et al., 2008). UAVs have outstanding merits for
low altitude photogrammetric mapping : 1) to perform very
low altitude aerial photography at cloudy day, 2) to get full
image of city building form different direction by complicated
flying, 3) to supply a cheap and easy system for engineering
organization for high frequency needs of aerial
photogrammetric survey (Lin, 2008). With those specifications
of UAVs, we attempted to apply to the field of natural disaster
management.
MD4-1000 is a AUMAV (Autonomous Unmanned Micro
Aerial Vehicle) designed to perform many aerial tasks:
surveying, exploration, surveillance, and communication etc. A
modular payload concept allows the UAV MD4-1000 as well to
carry a most diverse range of imaging, video and other sensor
systems. The Microdrone UAV is consisted of OGPSMAG GPS
(Global Positioning System), still camera (Olympus E-pl) with
resolution of 12M (4000 x 3000 pixels), ground station set, Lipo
battery and charger, carbon blade, etc (Lee et al., 2011b). The
characteristics of MD4-1000 are as following Table 2.
Table 2. Characteristics of MD4-1000
Characteristics Description
Flight Speed 15.0 m/s
Empty Weight 2,560g
Recommended payload 800g
dimensions 1,030mm
(Length between rotor shaft )
Flight time Up to 70 minutes
Maximum take-off weight 5,550g
EE EV LG RR » Micro UAV(M
Figure 3. RAMS(left) and MD4-1000(right)
3.3 LiDAR scanner
For rapid detection and follow-up measures of natural disaster,
a fast and accurate hazard monitoring system using both
terrestrial and airborne LIDAR was suggested in this study. —
To conduct volume analysis for the damaged area, 3D point
clouds data were acquired from three types of terrestrial LiDAR
scanners. After pre-processing such as registration of point
cloud data, noise filtering, and geo-referencing, we compared
the terrestrial LIDAR data with the airborne LIDAR data, which
was
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