geomatics for emergency management
TRANSCRIPT
Geomatics for emergency management: Data acquisition using UAVs
and Rapid Mapping production
Ingegneria IIngegneria per l’Ambiente e il Territorio
Luglio 2015
Relatore:
Prof. Piero Boccardo
Candidato:
Salvatore Morreale
Tesi di laurea magistrale
POLITECNICODI TORINO
GENERAL OVERVIEW
GEOMATICS
Terrestrial PhotogrammetryAerial PhotogrammetryRemote sensingGeographic Information SystemGlobal Position SystemLaser Scanning
EMERGENCY SITUATIONS
RAPID MAPPING
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EARLY WARNING
EMERGENCY RESPONSE
EARLY IMPACT
SEARCH AND RESCUE
MONITORING
SHOCK
FLOOD
EARTHQUAKE
STORM
LANDSLIDE
WILDFIRE
DISASTER MANAGEMENT
FRANCIAITALIA
RUSSIA
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Vulnerability Analysis
Immediate emergency response
Post-Disaster Analysis
Exercises on site and in the laboratories
Rapid mapping using satellite data and UAVs
Digital Photogrammetry
Laser Scanning
Remote Sensing
WebGis
Who?ACTIVITIES AND AIMS 3 di 18
Floods 6th November
1994 15th October
2000
ACTIVITIES AND AIMSWhere and When?
What and Why?
Morano sul Po (AL)
Luglio 2014
- CARTOGRAPHIC PRODUCT - STANDARD APPROACH TO USE IN REALITY- EVALUATION OF THE TIMING AND ACCURACIES
- SIMULATION OF A DISASTER- UAVs SURVEYS and GEOMATICS TECHNIQUES
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MEETINGBREAFING
ANALYSIS OF THE AREA
EVENT 1 : Industrial AccidentArea: 400 m x 400 m
UAV: HexaKopter
EVENT 2: FloodArea: 1000 m x 500 m
UAV: eBee
1. PREPARATORY PHASES
Meeting Place
Base Camp
UAV Take off and landing
TIME: 20’
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1. PREPARATORY PHASES
MEETING WITH THE CIVIL PROTECTIONARRIVE AT THE BASE CAMP
INSTALLATION GROUND STATION
UAVs (Unmanned Aerial Vehicles)
Provincial Mobile Unit
Laptops
eBee(fixed wing)
HexaKopter (multi-rotor)
TIME: 15’
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POSITIONING OF THE MARKERSACQUISITION DATA WITH SMARTPHONE
TIME: 30’ Accuracy: 3 - 4 m
Nokia Lumia 1020App: GPS-satellite
Samsung S5App: U-center
16 Markers
Wood Panels50 cm x 50 cm
High-cromatic contrast
HexaKopter
eBee
2 Smartphone
Coordinates - Smartphone Surveyn° Longitude [E] Latitude [N] Altitude [m]1 45.161542 8.376118 109
2 45.161162 8.378744 125
3 45.161069 8.381048 119
4 45.159800 8.380348 126
5 45.160442 8.378693 168
6 45.160593 8.378110 168
7 45.159697 8.377926 167
8 45.159613 8.379187 163
9 45.159282 8.380085 157
10 45.159662 8.377111 118
11 45.163099 8.382845 114
12 45.162818 8.375848 123
13 45.161769 8.370627 122
14 45.160768 8.370742 124
15 45.159115 8.370845 127
16 45.161333 8.376059 121
2. PHOTOGRAMMETRIC SURVEY
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Camera Sony Nex 5Sensors
Company MikroKopter
6 Brushless Motors6 Propellers
Sensors 4 LiPo – 14.8 V
Payload 0,8 – 1 KgDiameter 60 cm
Weight 1 Kg
HexaKopter
The GPS Navi-Control board is a key component and provides an autopilot that can control the position and course of the Kopter. It provides a Position Hold and Come Home feature, as well as the capability for autonomous flight between Waypoints.
The Flight Control contains the main processor for receiving and interpreting commands sent by the pilot for the flight’s execution and numerous sensors to correct the navigation according to the observed conditions: - tri-axial Gyroscope (rotation speed)- tri-axial Accelerometer (acceleration)- Altimeter (height)
6 Brushless Controls cards have the purpose to regulate each motor.
Features
3. ACQUISITION DATA : UAVs
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Company Sensfly1 Brushless Motor
1 PropellerSensors
3 LiPo – 11.3 VPayload 0,15 KgWingspan 60 cm
Weight 690 g
The Central body is the core of the eBee and includes all the electronics, actuators and communications hardware on-board the drone.
The Data Link Antenna is used by the drone to communicate with the software.
The Pitot probe is the sensor used to detect airspeed, wind and altitude.It must be kept clean and clear of obstructions to function properly.
The Status LED displays the current state of the eBee. It is housed underneath the pitot probe and thus illuminates the entire transparent probe in various colors depending on the drone’s state.
The Ground sensor, composed of a high-speed optical sensor and lens assembly, is used to detect the proximity of the ground.
eBee Sensors Canon Ixus 127 HS
Features
3. ACQUISITION DATA : UAVs
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Flight Height [m] Digital Camera Stripes Images GSD [cm] Time Planning
Time
Flight
1 - HexaKopter 70 Sony Nex 5 8 190 2.2 6’ 13’
2 - HexaKopter 150 Sony Nex 5 4 160 5 5’ 9’
3 - eBee 200 Canon ixus 127 HS 7 160 5 13’ 17’
3. ACQUISITION DATA
The MikrokopterTool-OSD eMotion
WayPoint Generator Display Map
WayPoint Editor
Mission Planning Tab Map Area
PLANNINGFLIGHT
TIME10 di 18
Geodetic National Reference System UTM WGS84 ETRF 2000
Add Photos
Align PhotosAccuracy: Low
Build Dense CloudQuality: Low
Depth filtering: Aggressive
Build MeshSurface type: Height field
Source Data: Sparse Cloud
Build TextureMapping mode: Orthophoto
Blending mode: Mosaic
Not Georeferenced Orthophoto
+Coordinates Smartphone
=Georeferenced Orthophoto
4. DATA PROCESSING – ON SITE
DOWNLOAD DATACONVERSION COORDINATES
CREATION ORTHOPHOTODISTRIBUTION OF THE FINAL PRODUCT
CartLab
Agisoft PhotoscanTIME: 2h
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4. DATA PROCESSING – ON SITE
Hexakopter Flight – 70 mImage raster Ground Control Points Location Digital Surface Model
Image Overlap Camera Data
Survey Data
Control Points
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4. DATA PROCESSING – ON SITE
Hexakopter Flight – 150 m
Image raster Ground Control Points Location
Image Overlap Camera Data
Survey Data
Digital Surface Model
Control Points
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4. DATA PROCESSING – ON SITE
eBee Flight – 200 mImage raster Camera Location Digital Surface Model
Image Overlap Camera Data
Survey Data
Average camera Location error
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Hexakopter Data was sent in
the Geomatics laboratory
The orthophotos were shared by means of WMS services, thanks to the ftp servers inside the Provincial Mobile Unit of the
Civil Protection.
5. DATA TRANSMISSION AND REMOTE PROCESSINGTIME: 2 h 35’
DISTRIBUTION OF THE FINAL PRODUCTSEND DATA IN REMOTE LOCATIONCREATION NEW ORTHOPHOTOS
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FINAL RESULTS AND CONCLUSIONSTIMING
Preparatory Phases
Photogrammetric Survey
Data Processing
Acquisition Data
First useful data:
4 hours
ACCURACIES
App U-center
Coordinates “RTK Survey””[m]n Longitude Latitude Altitude1 450967,885 5001083,470 117,1922 451169,300 5001037,246 116,6223 451352,114 5001025,564 116,3104 451295,155 5000887,812 116,6055 451168,820 5000958,750 116,5726 451121,424 5000977,090 116,1837 451104,411 5000876,263 118,0458 451204,835 5000866,991 117,2339 451275,719 5000829,846 116,64710 451043,093 5000874,818 115,69211 451493,225 5001252,340 119,80212 450947,904 5001223,993 119,89113 450531,368 5001111,694 120,43514 450543,504 5000995,237 116,03515 450548,992 5000815,971 117,15916 450960,482 5001059,867 119,851
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EMERGENCY RAPID MAPPING• Fast data acquisition
• New technologies of Geomatics (UAVs)
• Short time of Processing
• Not rigorous in terms of metric
• Accurate to describe the catastrophic event
• Cheap to be produced
• Wide areas
• Restrictions by ENAC Regulations
• Expert Users
• Improvement in accuracy of smartphone
• Better identification of markers
• Smartphone onboard UAVs
FINAL RESULTS AND CONCLUSIONS
Issues to face
Possible futures improvements
Results
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THANK YOU FOR YOUR ATTENTION
Luglio 2015
Salvatore Morreale
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