Download - StreetMapper Portable
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StreetMapper 360 & StreetMapper Portable
11th February 2010
Dr. Chris Cox & Mr. Olaf Gross
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3D Laser Mapping – LIDAR Specialists
StreetMapper
Distributor for RIEGL(UK, Ireland, Southern Africa)
Terrasolid softwareLiteMapper
SiteMonitor for Open Pit Mining
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Company Background
• Founded in 1999 (10 years in operation)
• 14 staff– 10 technical staff
• Engineering or surveying graduates• 2 PhD educated staff
• Turnover (past 12 months) £4 million (€4.1 million)
• World-wide presence for technical support– Via distributors, joint ventures and branch offices
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Why 3D Laser Mapping?
1. Most experienced company in mobile mapping market– 10 years (3DLM) plus 27 years (IGI)
1. World’s first commercial available mobile laser system– First demonstrator: May 2004
1. First class technical support– High customer satisfaction and repeat business
1. Market leader in mobile mapping systems
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Who is using StreetMapper?
Speed of data capture
10 sq km/hr
0.1 sq km/hr
Capital cost€100k €600k
3D Scanners
Airborne LIDAR
Tren
ds in
tech
nolog
y
migrat
ion
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StreetMapper Users
• Geomaat, Netherlands: Highways survey• Tecdawn, China: Highways survey and city model• Geokosmos, Russia: Highways survey• National University of Ireland: Research• General Dynamics: Rapid mapping (military uses)• Terrametrix, USA: Highways survey• Geodigital, Canada: Highways survey• Halcrow, UK: Highways survey• GloMapTech, South Africa: Highways survey• TKTI, Lithuania: Highways survey• Estereofoto, Portugal: Highways survey
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What is StreetMapper?
• StreetMapper is a result of a joint venture with German guidance and navigation specialist IGI mbH
• Mobile Mapping System (MMS) for surveying:– Highways– Coastlines– Urban areas– …and more
• Generally consists of:– Multiple laser scanners– Multiple geo-referenced cameras– High-grade navigation system
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Why StreetMapper?
• Highest accuracy
• Most flexible system:– Lifting platform– Portable system
• Ease of use
• Highest performance sensors & navigation
• European export controlled navigation system
• Proven in operation:– The ONLY terrestrial mobile LiDAR system that has
been in field operations for over 5 years
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Unique offering
Complete StreetMapper Solution
StreetMapper system
Installation/commissioning
Training
Helpdesk support via phone & email
Remote support via internet
Workflow & procedures development
Additional integration of sensors
Third party software tools
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Technology – Overview
• StreetMapper consists of:
– Multiple 2D Riegl laser scanners• StreetMapper 360 - Two 360 degree scanners• StreetMapper Portable - One 360 degree scanner
– High quality IGI navigation system (GPS, IMU & odometer)
– Multiple geo-referenced cameras
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IGI – Modular Sensor Systems
• Missionplanning• Navigation• GPS/IMU• Sensor Management
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Inertial Measurement Unit
Kalman Filter
Position Velocity Attitude
Differential GPSSpeedometer
Direct Inertial Aiding
Direct Inertial Aiding - DIA
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without inertial aiding with inertial aiding
Direct Inertial Aiding - DIA
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Technology – INS system
Weight 2.2 kgData rate 400HzGyro drift 0.03°/h
System accuracy (dGPS):Position: <0.05mVelocity: 0.005m/sRoll/Pitch: 0.003°Heading: 0.007°
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Technology – Laser Scanners
• Riegl VQ250 laser scanner– 300 kHz each– 500m range– 10mm accuracy– Unlimited returns– Calibrated reflectivity
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Technology – Laser Scanners - Reflectivity
• Amplitude (Intensity)– Strength of the return signal– Degrades over distance– Point cloud will have low contrast at range
• Reflectivity– Reflectivity measured in dB– Scanners calibrated against white diffuse target (0db)– Reflectivity independent of range – Point cloud has good contrast throughout
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Amplitude Reflectivity
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Technology – Laser Scanners - Waveform
• Practically unlimited number of targets per pulse– Minimum distance between targets is about 0.8m
• Deviation of pulse form recorded– A high pulse deviation indicates two or more nearby
targets
• Echo number and deviation is used to improve classification– First of many or intermediate echo probably not ground– Echo with high deviation probably not ground
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Technology – Custom sensor mounts
• Lifting platform– Environmental protection– Security– Health & Safety
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Technology – Data Loggers
• Small rackmount consisting of:– Scanner data logger (single laptop)– Navigation data logger– Video data logger
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Technology – Cameras
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Technology – Cameras
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Technology – Cameras
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Technology - StreetMapper Portable• One 360 degree scanner• Lightweight mount• Compact power and control units• Checked in as regular baggage at airport
– 3 cases, <23 kg each
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Typical Accuracy
• Absolute Accuracy (INS)– <20mm for good GPS conditions (> 6 sats with good PDOP)– Can be improved
• Route planning• Control points
• Relative Accuracy (Scanner)– <10mm
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Typical Applications• Highways
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Typical Applications• Urban Mapping
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Typical Applications• Overhead Wire Surveys
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Typical Applications• Coastal Surveys
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Typical Applications• Accident Reconstruction
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Case Study – LA Corridor Project• Community Redevelopment Agency of the City of Los
Angeles (CRA/LA) set out in early 2009 to develop a new pedestrian-friendly and efficient transit corridor that would link the city’s southern region with downtown
• CRA’s challenge was to convey its vision to investors and the communities that would be affected by the development work
• The surveys for the new transit corridor would be obtained entirely through mobile scanning
• Diamond West (California) was awarded the contract with Terrametrix (Nebraska) as their partner using the StreetMapper mobile mapping system
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Case Study – LA Corridor Project• The project would involve scanning 23 miles of
streetscape, including:– building facades– two and four lane urban highways– adjacent light rail lines– 300 feet in both directions at over 180 intersections
• Diamond West set primary and secondary control using GPS and robotic total stations to improve the survey accuracy especially in the downtown areas
• The survey was driven at 20-30mph• Surveyed over 2 days• Over 2 billion points
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Olympic Stadium
Downtown LA
Southern Region
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Case Study – LA Corridor Project• StreetMapper consisted of:
– 2x Riegl VQ250 360 degree scanners @ 300kHz– 2x Nikon D300 SLR cameras, calibrated & geo-referenced
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Case Study – LA Corridor Project• Terrametrix processed the scan data using TerraSolid
software:– TerraScan for classification and cleansing– TerraMatch to align the data to the control– TerraPhoto to calibrate the cameras and colour the points
• Diamond West produced the CAD deliverables for CRA/LA within 12 weeks of data capture
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Thank You
Any questions?
3D Laser Mapping Ltd.1A Church StreetBingham, NottinghamNG13 8AL, UK T: +44 (0) 870 442 9400F: +44 (0) 870 121 4605E: [email protected]: www.3dlasermapping.com
IGI mbHLangenauer Str. 4657223 KreuztalGermany
T: +49 2732 5525-0F: +49 2732 5525-25E: [email protected]: www.igi-systems.com