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Presented by: Ching-Jung Hung
Chung-Hsing Surveying Co., Ltd www.chsurvey.com.tw
Applications of Innovative Technology on LiDAR Systems
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onestyChung
singurveying
HS
ertificated
ervice
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Initial(Local Project)
Stable(Region Project)
Growthful
(National Project)
Innovative
(Global Project)
1969 1991 2001 2011
Founded in Taichung, Taiwan Since July, 1969 The first private surveying company in Taiwan 6 departments, 82 employees
History andLocation
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General Manager
Planning Office
General Consultant
Project department
Quality Control department
Engineering department
LiDAR System department
General Affairs department
Organization and Services
Photogrammetrydepartment
- GPS control points
- Precise leveling
- Gravimetric surveying
Control Surveying
- Digital terrain surveying
- Cadastral surveying
- Engineering surveying
- Urban planning surveying
- Hydrographic Surveying
Application Surveying
- Terrestrial LiDAR Syetem
- Mobile LiDAR Syetem
- Airborne LiDAR Syetem
- Hyperspectral
Innovative Surveying
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Location
Head Office
LiDAR DepartmentEngineering Department
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Control Survey
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Control Survey
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- 40 Trimble GNSS receivers
GNSS control surveying- Imported and Adopted GPS in 1992 (first company in Taiwan)
GPS tracking station Geodetic control points
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- 90% Work at night
Precise leveling- Establised TWVD2001 (4500km,5years)
Precise levelingDatum bench-mark Leveling network
Control Survey
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Control Survey
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Gravimetric surveying- Gravity control network since 2003 (the only compamy)
- Surface and Marine Gravity
Gravity network Surface Gravimetric surveying Marine Gravimetric surveying
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Innovative
Surveying
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Terrestrial LiDAR System TLS System
- Manufacturer: Zoller + Fröhlich (Z+F) - System: Z+F IMAGER 5010 - Range measurment way: Phase
Lasers scanner
Accuracy (Range is 50m)
- Laser rep rate: up to 1000 kHz (Most pts/s)- Range: 187.3m
- 37% reflectivity : ± 1.2mm - 80% reflectivity : ± 0.8mm Scanned by traditional TLS(Pluse)
Scanned by Z+F 5010 (Phase)
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TLS in CHS
X2
X1
Z+F Imager 5006ex- explosion proof
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Applications of TLS Oil groove City modeling Factory building
Historic sites preservation Tunnel detection
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LFM - Modeling Software
Scannerlist 3D mode
2D point cloud mode Scanner location
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Standard segmentation establishing- Ascending pipe
1. draw ascending pipeline (in 2D mode)
2. LFM select the appropriate diameter
3. Result show in 3D mode
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Achievement
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• There are two ways to check result.
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Validation
2. Put 3D point cloud to model 1. Put model to 2D point cloud
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Data transformation- *.mac(PDMS)- *.dwg(AutoCAD)、- *.dgn(MicroStation)- other format
Convert model to *.mac
Convert model to *.dwg
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Convert model to CAD file (from LFM)
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Factory modeling
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MLS System - Manufacturer: Optech - System: Lynx M1 - Components : 2 Laser scaners , 4 cameras 2 GNSS receivers
Lasers scanner- Laser rep rate: up to 500 kHz each(Most pts/s)- Frequence: 80Hz-200Hz- Range: 200m @ 20% reflectivity
Accuracy- Range accuracy : ± 8mm (1 sigma)- Point accruacy : ± 5cm (1 sigma)
CAMERA(S)
Adjustable
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ALS System - Manufacturer: Optech - System: ALTM 3070 (first ALS in Taiwan, 2003) ALTM Pegasus (in 2011)
22ALTM 3070 ALTM Pegasus
Track Record
Scanned area
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Hyperspectral System - Manufacturer: ITRES - System: CASI1500 (first commerical and airborne Hyperspectral)
Imager - FOV: 40 degrees - Pixel Size: 20*20 microns - Spectral Range: 380-1500 mm - Spectral Channels: Up to 288 bands
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ConclusionsInitial
(Local Project)
Stable(Region Project)
Growthful
(National Project)
Innovative
(Global Project)
1969 1991 2001 2011
First private surveying company(1969)
First importedAdopted GPS(1992)
First AirborneLiDAR System(2003)
First commercial Hyperspectral (2011)
Integration
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Chung-Hsing Surveying Co., Ltd. No. 159, Zhongren St. West Dist., Taichung City 40355 Taiwan (R.O.C)
Tel +886-4-22242788 Fox +886-4-22242168 E-mail [email protected] Web http://www.chsurvey.com.tw/index.html
Q & A