3d laser mapping: what can you use 3d laser scanning for?
TRANSCRIPT
WHAT CAN YOU USE 3D LASER SCANNING FOR?
TYPICAL PLATFORMSWHAT DO WE SCAN FROM?
TYPICAL PLATFORMS – MOBILE MAPPING
TYPICAL PLATFORMS – RAILWAYS & WATERWAYS
TYPICAL PLATFORMS – FIXED WING
TYPICAL PLATFORMS - HELICOPTER
TYPICAL PLATFORMS – UAV
TYPICAL PLATFORMS – TRIPOD
TYPICAL PLATFORMS – INDUSTRIAL
TYPICAL PLATFORMS – INDOOR
TYPICAL APPLICATIONSWHAT DO WE USE THE DATA FOR?
APPLICATIONS – HIGHWAY MAINTENANCE
• EXISTING CONDITION SURVEY• REPORTING OF EXISTING CONDITIONS• OFTEN USED FOR ASSISTING WITH NEW DESIGNS
• AS-BUILT• ENSURE THE DESIGNS ARE BEING CORRECTLY IMPLEMENTED ON SITE• REPORT ANY DEVIATIONS TO THE CLIENT
APPLICATIONS – HIGHWAY MAINTENANCE
APPLICATIONS – BRIDGE HEIGHT MAPPING
• ACCURATE DATA ON VERTICAL CLEARANCES OF ROADWAY STRUCTURES IS CRITICALLY IMPORTANT IN OVERSIZE ROUTE PLANNING
• TRADITIONALLY COLLECTING THIS DATA HAS THE FOLLOWING ISSUES:• DANGEROUS AND CAN CAUSE CONGESTION WITH WORK CREWS SUBJECT TO SIGNIFICANT TRAFFIC HAZARDS• WORK MUST BE PERFORMED DURING AVAILABLE TRAFFIC BREAKS
• MOBILE MAPPING SYSTEMS (MMS) COUPLED WITH AUTOMATED DATA EXTRACTION• PROCESS UP TO 40 BRIDGES PER DAY• SURVEY GRADE ACCURACY AT TRAFFIC SPEED
APPLICATIONS – BRIDGE HEIGHT MAPPING
5.24m 5.32m
APPLICATIONS – BRIDGE HEIGHT MAPPING• TYPICAL REPORT GIVEN TO CLIENT
Source:http://www.terrametrix3d.com
APPLICATIONS – MINING VOLUME MEASUREMENTS• ACCURATELY MEASURING THE VOLUME AND MASS OF A STOCKPILE
• PRECISE MEASUREMENTS FOR FINANCIAL REPORTS AND EXCISE DUTY• FOLLOWING REGULATORY REQUIREMENTS
• EU COUNTRIES MUST DO A MASS BALANCE TO CALCULATE CO2 EMISSION• ASSISTING IN PLANNING
• TRADITIONAL TECHNIQUES SUCH AS GNSS AND TOTAL STATIONS CAN BE:• TIME CONSUMING• DANGEROUS (WALKING ON STOCKPILE)
APPLICATIONS – MINING VOLUME MEASUREMENTS
APPLICATIONS – SLOPE MONITORING
Mining Coastal Avalanche
Highways Railways Landslide
APPLICATIONS – SLOPE MONITORING
• LARGE LANDSLIDES USUALLY OCCUR AFTER A SMALL SLOPE FAILURE
• BASIC METHODOLOGY• SCAN OBJECT• RE-SCAN SAME OBJECT AT REGULAR INTERVALS• DETECT ANY SMALL CHANGES• SEND WARNING BEFORE MAJOR SLOPE FAILURE
APPLICATIONS – SLOPE MONITORING
APPLICATIONS – COASTAL SURVEYING• APPLICATIONS INCLUDE:
• MONITORING OF CLIFFS FOR LANDSLIDES• MEASURING EROSION• FLOOD MAPPING• HYDRODYNAMIC MODELLING• RESOURCE MANAGEMENT• ENGINEERING SURVEYS
APPLICATIONS – COASTAL SURVEYING
APPLICATIONS - POWERLINES• AIRBORNE LIDAR IS USED TO MAP POWERLINES FOR:
• ASSET MANAGEMENT• VEGETATION CLEARANCE• ENGINEERING SURVEYS
• ADDITIONAL DATA CAPTURED INCLUDES:• COLOUR PHOTOS (NADIR AND OBLIQUE)• THERMAL PHOTOS – FOR “HOTSPOT” DETECTION• WEATHER DATA – FOR ACCURATE MODELLING OF CONDUCTOR SAG
APPLICATIONS - POWERLINES
Source:www.terrasolid.com
APPLICATIONS - RAILWAYS
• APPLICATIONS INCLUDE:• ASSET MAPPING• CLEARANCE MAPPING (CLASH DETECTION)• ENGINEERING SURVEYS• EMBANKMENT LANDSLIDE DETECTION
APPLICATIONS - RAILWAYS
APPLICATIONS - HERITAGE
• LASER SCANNING PROVIDES VISUAL AND METRICALLY ACCURATE BASE DATA FOR A VARIETY OF HERITAGE APPLICATIONS INCLUDING• CONSERVATION PLANNING• CONDITION SURVEYS• DECAY MONITORING• RECORDING• ARCHITECTURAL ANALYSIS• ARCHAEOLOGICAL INVESTIGATION• SITE PRESENTATION
APPLICATIONS – HERITAGE
Source:www.geoslam.com
APPLICATIONS – VEGETATION MAPPING
• VARIOUS TYPES OF INFORMATION CAN BE EXTRACTED FROM LIDAR INCLUDING:• CANOPY HEIGHT• CANOPY VOLUME• SUB-CANOPY TOPOGRAPHY• BIOMASS• STEM DIAMETERS
APPLICATIONS – VEGETATION MAPPING
Source:www.bgc-jena.mpg.de
APPLICATIONS – VEGETATION MAPPING
Source:www.geoslam.com
APPLICATIONS – ACCIDENT RECONSTRUCTION
• AFTER A FATAL ROAD ACCIDENT THE ROAD MUST BE CLOSED FOR A FULL SURVEY BY THE POLICE
• USING TRADITIONAL SURVEYING TECHNIQUES THE ROAD MAY BE CLOSED FOR MANY HOURS
• POLICE FORCES ARE NOW USING 3D TERRESTRIAL SCANNERS TO QUICKLY SURVEY THE ACCIDENT SCENE
APPLICATIONS – 3D MODELS & SIMULATIONS
• LIDAR IS THE PERFECT CHOICE FOR CAPTURING 3D INFORMATION FOR USE IN THE CREATION OF 3D MODELS AND SIMULATIONS DUE TO:• HIGH SPEED OF CAPTURE• HIGH RESOLUTION OF DATA• HIGH ACCURACY OF DATA
• POINTCLOUDS ARE OFTEN COLOURED TO PROVIDE PHOTOREALISTIC POINTCLOUDS TO AID MODELLING
APPLICATIONS – 3D MODELS & SIMULATIONS
Source:www.severnpartnership.com/
INDOOR MAPPINGZEB1
ZEB1 - INTRODUCTION• HANDHELD MOBILE MAPPING
• WALK & SCAN WITH ZEB1• MEASURE >43,000 PTS/SEC
• PROCESS IN THE CLOUD• USING SLAM SOFTWARE• CLOUD-TO-CLOUD REGISTRATION
ZEB1 – HOW IT WORKS2D laser scanner with 270° field of view, 30m range
Inertial measurement unit (IMU) records movement in 3D space
Spring provides oscillation of measurement head
Handle
Power/data socket
LED status indicator
ZEB1 – EXAMPLE POINTCLOUD
• 3 MINUTES TO CAPTURE• 3 MINUTES TO AUTOMATICALLY PROCESS THE DATA
ANZAC SQUARE, BRISBANE, AUSTRALIA
Source:www.geoslam.com
DO YOU WANT TO KNOW MORE?
IF SO, GO TO WWW.3DLASERMAPPING.COM FOR MORE INFO, OR GIVE US A CALL
UK: +44 1949 838 004South Africa: +27 12 940 0515Australia: +61 (0) 8 9261 7703North America: +1 720 214 3554