http://www.efkon.com/index.pl/en_vehicle_classification
E lui
The TOM 2000 laser scanner is mounted on a gantry above the street. Six widened laser beams create an infrared laser curtain, which records a 3-dimensional profile of vehicles moving underneath. Data are derived from measuring the travel time of a light pulse from the TOM 2000 to the road surface and back. The height profile is then used to calculate the type of vehicle.
There are 12 pre-defined classes, which normally serve the need of most users. Alternatively, a system integrator has the option to create his own classes from the measured profile information.
The TOM 2000 beams are aligned 90 degrees to the road, therefore vehicle counting and separation is the highest in the market. TOM 2000 has no moving parts, an important condition for sustainable reliability.
The main functions typically provided by TOM2000 are
Vehicle detection
Vehicle classification
Height measurement
Vehicle separation and begin-end detection
Trailer detection
Vehicle counting
Vehicle direction
Vehicle speed (certain restrictions exist)
Some typical applications and users are
Toll road vehicle classification
Toll audit systems
Camera triggering
Traffic statistics / traffic management
Detection vehicles heading in the wrong direction
Section speed control classification
6 fasci laser puntano l'asfalto e ricostruiscono il profilo...come fa a misurare la velocita' con accuratezza una cosa del genere (tra l'altro c'e' anche scritto certain restrictions exist...) ?
Da sopra Cioe'...boh...con le telecamere fissate in quel modo mi pare impossibile che sia li' per fare la funzione di autovelox...pare piu' un qualcosa per rilevare il flusso del traffico (a fini statistici o per non so quale motivo), il tipo di veicoli, ecc...mah
