6/6/2013

1

Láser Escáner y GNSSGeotronics -Scan & Go

The poor diffusion of the use of Laser Scanner 3Din Topography is due to some practical problems:

• The need to use a series of common target (atleast 3) for connection between different scanstations;

• The use of surveying tripod with limited heightfrom ground and consequently reduction of therange of measurement;

• The need to integrate measures with traditionalinstruments to georeference the survey.

Actual methodology

6/6/2013

2

Project idea

The idea of the project to eliminate all the problemsfound is to combine a Laser Scanner 3D and 2 GPS,installed on a vehicle, in order to generate a singlereference system for all the scans performed.

Project idea

Problem generated from orography of the ground: LEVELING

How to make coaxial equipment leveled ?

6/6/2013

3

Project idea

Solution of the problem :

Automatic Leveling “LEVEL-PLANE EVO”

LEVEL-PLANE EVO

• Leveling accuracy: 3’’

• Operating limit maximunlongitudinal (direction oftravel): +/- 14,5°

• Operating limit maximumtransversal: +/- 27°

• Maximum load: 25kg

• AUTOMATIC TOTAL LEVELING

6/6/2013

4

Realization• Installation on the roof of the vehicle of

appropriate roof rack bars .

• Fixing the automatic leveler “LEVEL-PLANEEVO” on the bars.

• On this system will be positioned the laserscanner 3D topped from a GPS receiver.

Realization• On the cover of the vehicle is positioned a

magnetic plate leveling, “Magnetic LevelBracket”, equipped with reference target andGPS receiver coaxial to the same target.

6/6/2013

5

• Positioning the vehicle in the chosen positionwe proceed leveling of the equipments using thetwo systems specifically designed, oneautomatic and the other manual.

• Simultaneously at the start of the scan are put inFast-Static measure the two GPS receivers.

Procedure

• After 8/15 minutes, measures GNSS and lasermeasure are closed

• Subsequently the vehicle is moved in the chosenposition for the second station in order to proceed tonew leveling and measurement operation .

Procedure

6/6/2013

6

Benefits of the system:• Quick and simple movements from different

stations executable by a single operator

Benefits of the system:• Considerable increase of the measurement

range of the laser scanner sensor (higherheight from ground)

6/6/2013

7

Benefits :• Definition of

a single referencesystem forall scansperformed

Benefits of the system:• Definition of a unique reference system for all

single scans without the need for common target

6/6/2013

8

Benefits of the system:•Excellent precision on the positioning of the ”pointclouds” detected by scans in order to respectcentimetric tollerance of a good and detailedtopographical survey

6/6/2013

9

Maranello – Traditional survey

6/6/2013

10

Maranello – Scan & Go survey

Scan&Go System

Scan&Go System

Timing survey, 6 hours with a single Operator.

Maranello – Scan & Go survey

6/6/2013

11

Scan&Go System

Maranello – Scan & Go survey

Scan&Go System

Maranello – Scan & Go survey

6/6/2013

12

Maranello – Scan & Go survey

Massimo Secchia

6/6/2013

13

Scan & Go survey

Massimo Secchia

3D Restitution

6/6/2013

14

Real sections in any position

Massimo Secchia

6/6/2013

15

Survey Ferrari S.p.A.roundabout

6/6/2013

16

Survey Ferrari S.p.A. roundabout

Survey Ferrari S.p.A.roundabout

6/6/2013

17

Survey Ferrari S.p.A.roundabout

Level – Lift

6/6/2013

18

Level – Lift COMPONENTS OF THE SYSTEM :

• Extensiblepneumatic pole

• Compressor 12 V

• Dedicated battery100 Ah

• Electronic controlunit

Procedure with Level – Lift

6/6/2013

19

Procedure with Level – Lift

Procedure with Level – Lift

6/6/2013

20

Procedure with Level – Lift

Procedure with Level – Lift

6/6/2013

21

Procedure with Level – Lift

Procedure with Level – Lift

6/6/2013

22

Procedure with Level – Lift

Monitoring of Quinis Bell tower with Level–Lift

6/6/2013

23

Monitoring of Quinis Bell tower with Level–Lift

CONCLUSIONS

This new methodology of survey has significant advantages such as:

• Non-invasive survey, it is not necessary to reachphisically the objects to be measured.

• Absolute completeness of information, theinstrumentation detects all that is visible.

• Timing of survey are extremely reduced and made by asingle operator.

• Timing of restitution are fast thanks to the automatic georeferencing of the ”point clouds” using GPSmeasurements.

• Quick and easy moving thanks to the installation of thesystem on the vehicle.

• Automatic leveling of all instruments.