road surface GRIP value/Visibility/precipitation/ snow height/ Water Film height sensors
High performance intelligent invasive/non- invasive & mobile sensors for road/runway surface ice detection & freezing point temperature measurement.
Lufft's UMB (Universal Measurement Bus) technology with open protocol, offers lean modular strategy that will communicate with any 3rd party hardware such as Variable Message Signs (VMS), Traffic Control Centres and OEM system integrators.
Calculates/measures freeze point temperatures, water film height up to 4mm, & now "friction" (Grip) measurement in addition to other critical surface condition status such as wetness, ice, snow, hoar frost & residual salt. Active sensor measures freeze point temperature in dependant of de icing material, making it ideal for bridge deck applications where alternatives to sodium chloride are sometimes used to prevent corrosion.
Benefits of using non invasive measurement:
-Automatic calibration according to surface construction (concrete or asphalt).
-Automatic re calibration during dry periods (surface conditions)
-No need to adjust the unit according to the distance between installation point & surface.
-No TM required during installation.
-Can be re positioned easily.
All sensors are configured & firmware updated using the free UMB-Config software tool.
See further down this page for actual measurement comparison between embedded road sensor (puck) with non-invasive technology.
Freezing temperature measurement is independent of mixture ( electrical
conductivity of the solution must be > 1 mS/cm).
In addition, ARS31Pro-UMB can determine the threat of icing using an external surface temperature sensor connected directly to the ARS31Pro.
NIRS31-UMB Non Invasive road surface condition sensor
Spectroscopic measurement of:
-Surface Condition-Dry, Damp, Wet, Snow, Ice
-Water Film Height/Layer Thickness
-Ice % in water
-Determination Of Freeze Point Temperature
MARWIS Mobile Road Weather Sensor
Real time road weather reporting.
Reduce winter maintenance costs by intelligent knowledge of the current road surface condition to either pre treat the route or produce automated targeted gritting precisely where it is needed, rather than re treating the whole route.
The new MARWIS low cost intelligent mobile road weathersensor from lufft reports the road weather data gap between fixed RPU outstations.
Display data inside vehicles on iPad/iPhone/Android devices etc. using the free Lufft MARWIS App or transmit directly to the cloud. Other remote data access hardware platforms available.
The most highest performing ceilometer on the market.
Lufft UMB ( Universal Measurement Bus) Technology
Main Advantage: Open Protocol, not a closed box solution.
Technology for recording
The modular system approach
supports easy commissioning, free
firmware updates & data transfer over
RS232, RS485 or GPRS modem.
UMB offers flexibility, modularity.
Analogue sensors can be connects to the UMB BUS simply by using the ANACON modules.
The DACON8 D/A converter module provides 8 channel analogue outputs.
Lufft LCOM Communications & Data logging device.
Multiple interfaces to convert the UMB sensor technology.
Enables connected UMB sensors to be configured locally without a PC.
Remote access via internet protocols.
Road Weather Camera
"Virtual eye on site"
in conjunction with measurement
- Creates trust & visually illustrates
- Recommended combination especially
in conjunction with ice warning systems
to limit patrols to the greatest possible
- Images of road condition day & night
in real time with infrared spotlight (option) & GPRS transmission.
For use in combination with the Road Camera above to give 24 hour scene vision in real time.
Web based visualisation & data
collection software for Lufft