Leader in vision systems for the automated inspection of transportation infrastructures.
Pavemetrics technology enables the automatic detection and evaluation of road features to optimize the use of road maintenance funds and to improve safety through better road surface maintenance. Our automated inspection technology is designed for both day and night time operation. It produces high resolution 2D images and 3D profiles of both asphalt and concrete road surfaces at speeds up to 100 km/h.
LRMS – Laser Rut Measurement System
The Laser Rut Measurement System (LRMS) is a transverse profiling device that detects and characterizes pavement rutting. The LRMS can acquire full 4-meter width profiles of a highway lane at normal traffic speeds, with 2 options of maximum sampling rate: 30 or 250 Hz.
Over the past years, this system has been used on a continuous basis by dozens of governments and private agencies.
Technology
The system uses two laser profilers that digitize transverse sections of the pavement.
Custom optics and high-power pulsed laser line projectors allow the system to operate in full daylight or in night time conditions.
Functionality
The system is delivered with a complete DLL library of C/C++ functions allowing the user to easily configure the sensors, acquire transverse profiles, extract road rut data, and validate laser profiler calibration.
In order to keep a constant longitudinal sampling, the vehicle's odometer can be continually monitored. Road transverse profile data can be collected and processed in real time on board the vehicle. Rut extraction algorithms have been developed to automatically measure rut depth and width and type (short radius, long radius or multiple radius (double) ruts).
Key Features
- 1 280 point 3D transverse profiles
- 30 or 250 profiles per second
- +- 1mm accuracy
- Evaluation of rut depth, width and type
- Rut classification (short, long, multiple radius ruts)
- Detection of lane markings
- Day and night operation, immunity to sun and shadows
- Low power consumption