streetmapper portable

StreetMapper 360 & StreetMapper Portable

11th February 2010

Dr. Chris Cox & Mr. Olaf Gross

3D Laser Mapping – LIDAR Specialists

StreetMapper

Distributor for RIEGL(UK, Ireland, Southern Africa)

Terrasolid softwareLiteMapper

SiteMonitor for Open Pit Mining

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

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

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

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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

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

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

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

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

IGI – Modular Sensor Systems

• Missionplanning• Navigation• GPS/IMU• Sensor Management

Inertial Measurement Unit

Kalman Filter

Position Velocity Attitude

Differential GPSSpeedometer

Direct Inertial Aiding

Direct Inertial Aiding - DIA

without inertial aiding with inertial aiding

Direct Inertial Aiding - DIA

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°

Technology – Laser Scanners

• Riegl VQ250 laser scanner– 300 kHz each– 500m range– 10mm accuracy– Unlimited returns– Calibrated reflectivity

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

Amplitude Reflectivity

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

Technology – Custom sensor mounts

• Lifting platform– Environmental protection– Security– Health & Safety

Technology – Data Loggers

• Small rackmount consisting of:– Scanner data logger (single laptop)– Navigation data logger– Video data logger

Technology – Cameras

Technology – Cameras

Technology – Cameras

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

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

Typical Applications• Highways

Typical Applications• Urban Mapping

Typical Applications• Overhead Wire Surveys

Typical Applications• Coastal Surveys

Typical Applications• Accident Reconstruction

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

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

Olympic Stadium

Downtown LA

Southern Region

Case Study – LA Corridor Project• StreetMapper consisted of:

– 2x Riegl VQ250 360 degree scanners @ 300kHz– 2x Nikon D300 SLR cameras, calibrated & geo-referenced

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

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: info@3dlasermapping.comW: www.3dlasermapping.com

IGI mbHLangenauer Str. 4657223 KreuztalGermany

T: +49 2732 5525-0F: +49 2732 5525-25E: info@igi-systems.comW: www.igi-systems.com