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Permanent GNSS station network and AlpCheck:freight transport monitoring

19th June 2008Giorgio Gaber Auditorium

Palazzo della Regione LombardiaMILAN

Francesco Matonti – IREALP

1919thth JuneJune 20082008 Milan - Auditorium Gaber

Project summaryProblems related to data sharing on mobility are evident, mainly due to differences in the data collection systems that lead to a difficult homogenization. AlpCheck aim is to create an information system able to manage data coming from the existing monitoring systems in the Alpine area. It should be global but it will have to adapt itself to the characteristics of each user. The system has to adapt itself to multiple requirements and various contexts and different typologies of travel.

The IREALP Pilot Project in collaboration with SLALAIREALP (Regione Lombardia, satellite systems) cooperates with SLALA (Regione Piemonte, logistics) to carry out an experimentation about an high precision route tracing via on-board GPS devices for heavy trucks.

The System

Strengths• Sensitive improvement of position• Guarantee of position calculated

Permanent GNSS Station

•Data analysis•Tracking software

Low cost GPS receiver

GPRS moduleGPS

Server

GSM

Pilot Project DB

GSM/ GPRS

Fleet Monitoring

Fleet Monitoring

FTP

FTP

Web Service

GSM


The TechnologyUse of GNSS (Global Navigation Satellite System) for positioning

(GPS, GLONASS, GALILEO e COMPASS).

Absolute Positioning:• accuracy 10-20 m • no guarantee of information being submitted to the control centre

Relative Positioning:• increase in accuracy• guarantee of position obtained


The Methodology

The relative positioning

Reference Station


Differential GPS can eliminate all errors that are common to both the reference receiver and the roving receiver.

Area of interest:

North-Westernof Italy

Italy

Reference GNSS StationsLooking for a good place for installation


Multipath is the corruption of the direct GPS signal by one or more signals reflected from the local surroundings.


Characteristics for the site selections:• Clear horizon• Clear of reflecting surfaces• Controlled vegetation• Possibility to put the receiver not too far from antenna• Data accessibility via internet• Continuous electric power• Ease of access• Ease of installation


The GNSS Antenna and receiver

lightning protection

The AntennaA choke ring antenna is a particular form of omnidirectional antenna for use at highfrequencies. It consists of a number of conductive concentric cylinders around a central antenna. Due to its delicate construction, it is often enclosed in a protective cover or radome.Choke ring antennas are notable for their ability to reject multipath signals from a source.

Forced Centering Device

The Receiver

The AlpCheck GNSS network

Mondovì (CN)

Serravalle Scrivia (AL)

Mede (PV)

Lenta (VC)

Domodossola (VB)

Nizza Monferrato (AT)

Santo Stefano Roero (CN)


Levelling


The GPSLombardia and AlpCheck GNSS network

IREALP Know-How to support management and control of theGNSS Network


The IREALP control center

We estimate the stations coordinate periodically

The earth's surface is constantly moving and we want to know the precise location of the reference station!

We estimate the precise position of permanent GNSS stationswith BERNESE v5.0 sw, an international standard for scientific

application.


The Check of quality data

Bad quality data

Good quality data


GECO system

Position

RINEX

Data

RAW Data

Ionospheric Model

Precise orbit

Processing

Permanent GNSS Network

Monitor and ControlFleet Monitoring



Perspectives and opportunitiesThe control activity of the load status obtained by pressing specific keys on the device, during the loading and unloading procedures, is definitely affected by a serious degree of uncertainty.

Installing a set of sensors which might make this information automatic so to ensure a real and precise load status control.

By way of infrared sensors it is possible to assess the movement of the boxes or parcels inside a container; the opening or closing of the doors of the vehicle might be controlled with the application of electromagnetic sensors, or light-variation sensitive sensors;the use of ultrasound sensors also allows to check the availability of space inside the containers, to better use the available space.

All information are collected and sent, using a wireless module based on the ZigBee technology, to the device on board of the vehicle transmitted, through a GPRS package, together with the GPS observation data to the server.

Thank you for Your AttentionThank you for Your Attention

For further information please visitFor further information please visit::www.www.alpcheckalpcheck..eueuwww.www.irealpirealp..itit

www.www.gpslombardiagpslombardia..itit

OrOr

send ansend an ee--mailmail toto::francescofrancesco..matontimatonti@@irealpirealp..itit

infoinfo@@irealpirealp..ititinfoinfo@@gpslombardiagpslombardia..itit

http://www.alpcheck.eu/http://www.irealp.it/http://www.gpslombardia.it/mailto:[email protected]:[email protected]:[email protected]

Domodossola (DOMO)


LENTA (LENT)


Mondovì (MONI)



Nizza Monferrato (NMON)


Santo Stefano Roero (ROER)


Mede (MELO)


Serravalle Scrivia (SESC)

Levelling


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