1

Presented by: Ching-Jung Hung

Chung-Hsing Surveying Co., Ltd www.chsurvey.com.tw

Applications of Innovative Technology on LiDAR Systems

1

2

onestyChung

singurveying

HS

ertificated

ervice

33

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

44

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

55

Location

Head Office

LiDAR DepartmentEngineering Department

66

Control Survey

7

Control Survey

7

- 40 Trimble GNSS receivers

GNSS control surveying- Imported and Adopted GPS in 1992 (first company in Taiwan)

GPS tracking station Geodetic control points

88

- 90% Work at night

Precise leveling- Establised TWVD2001 (4500km,5years)

Precise levelingDatum bench-mark Leveling network

Control Survey

9

Control Survey

9

Gravimetric surveying- Gravity control network since 2003 (the only compamy)

- Surface and Marine Gravity

Gravity network Surface Gravimetric surveying Marine Gravimetric surveying

1010

Innovative

Surveying

1111

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)

1212

TLS in CHS

X2

X1

Z+F Imager 5006ex- explosion proof

1313

Applications of TLS Oil groove City modeling Factory building

Historic sites preservation Tunnel detection

14

LFM - Modeling Software

Scannerlist 3D mode

2D point cloud mode Scanner location

15

Standard segmentation establishing- Ascending pipe

1. draw ascending pipeline (in 2D mode)

2. LFM select the appropriate diameter

3. Result show in 3D mode

16

Achievement

17

• There are two ways to check result.

17

Validation

2. Put 3D point cloud to model 1. Put model to 2D point cloud

18

Data transformation- *.mac(PDMS)- *.dwg(AutoCAD)、- *.dgn(MicroStation)- other format

Convert model to *.mac

Convert model to *.dwg

1919

Convert model to CAD file (from LFM)

2020

Factory modeling

2121

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

22

ALS System - Manufacturer: Optech - System: ALTM 3070 (first ALS in Taiwan, 2003) ALTM Pegasus (in 2011)

22ALTM 3070 ALTM Pegasus

Track Record

Scanned area

2323

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

2424

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

25

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 chs@chsurvey.com.tw Web http://www.chsurvey.com.tw/index.html

Q & A