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Road Weather information Network (ARWIS) with open system architecture - USA / Michigan MDOT

End of 2012 Lufft USA won the bid for the installation of 20 new ARWIS systems (ice warning systems) for Upper Peninsula in Michigan. The acceptance of the bid resulted not only from the price evaluation of the available deals, it was also rated the technical solution.

Luffts´ open system architecture (open interfaces , intelligent sensors, easy integration of sensors from other manufacturers) was crucial for our customers.

In a first phase, the masts were installed in winter 2013 and sensors (WS200, WS300, R2S and others) were installed on the mast and put into operation.
After the end of the winter, pavement sensors were installed in Stage 2.

The system includes a cloud concept. Therefore all data is visible for the user "in the cloud ". As a temporary solution, as software is used SmartView3 from Lufft. In future, the data will be integrated in the MDOT MDSS.

A total of 20 new stations were installed . In the following winter (first practice phase) we will offer our customers continuous support and training .

Compact Weather Sensor WS400 with detection of temperature, relative humidity, air pressure, precipitation intensity, precipitation quantity

WS400-UMB Smart Weather Sensor

Compact all-in-one weather sensor for measurement of temperature, relative humidity, precipitation intensity, precipitation type, precipitation quantity and air pressure.

Compact all-in-one weather sensor from the WS-Series. Measurement of temperature, relative humidity, precipitation intensity, precipitation type, precipitation quantity and air pressure.

  • Temperature, relative humidity, precipitation intensity, precipitation type, precipitation quantity and air pressure
  • NTC/T, Capacitive/RH, MEMS capacitive/Pressure, 24 GHz Doppler radar/Precipitation
  • Compact all-in-one weather sensor, low power, heater, aspirated radiation shield, maintenance-free operation, open communication protocol
  • RS485 with supported protocols UMB-Binary, UMB-ASCII, Modbus-RTU, Modbus-ASCII, XDR and SDI-12
Compact Weather Sensor WS300 with detection of temperature, relative humidity, air pressure

WS300-UMB Smart Weather Sensor

Compact all-in-one weather sensor for measurement of temperature, relative humidity and air pressure.

Compact all-in-one weather sensor from the WS-Series. Measurement of temperature, relative humidity and air pressure.

  • Temperature, relative humidity, air pressure
  • NTC/T, Capacitive/RH, MEMS capacitive/Pressure
  • Compact all-in-one weather sensor, low power, aspirated radiation shield, maintenance-free operation, open communication protocol
  • RS485 with supported protocols UMB-Binary, UMB-ASCII, Modbus-RTU, Modbus-ASCII, XDR and SDI-12
Compact Weather Sensor WS200 with detection of wind direction, wind speed

WS200-UMB Smart Weather Sensor

Compact all-in-one weather sensor for measurement of wind direction and speed.

Compact all-in-one weather sensor from the WS-Series. Measurement of wind direction and speed.

  • Wind direction and speed
  • Ultrasonic/Wind
  • Compact all-in-one weather sensor, low power, heater, maintenance-free operation, open communication protocol
  • RS485 with supported protocols UMB-Binary, UMB-ASCII, Modbus-RTU, Modbus-ASCII, XDR and SDI-12
SmartView3

SmartView3

Software to Evaluate, React and Decide

Web-based visualization and data collection software for Lufft dataloggers/ transmitters.

  • browser-based, data storage, flexible ex- and import function, simultaneous data collection via unlimited communication modules, alarm function, 6 hours forecast module
Product picture Lufft Tipping bucket rain gauge WTB100

Rain Gauge WTB100

Tipping Bucket Rain Gauge with Bounce-Free Reed Contact

Tipping bucket rain gauge with bounce-free reed contact

  • Rain/precipitation quantity
  • Tipping bucket with bounce-free reed contact (normally closed)
  • Resolution can be switched from 0.2 to 0.5 with reduction ring, connectable to any WS-sensor without precipitation measurement
  • Impulse output (reed contact)
Lufft R2S radar rain sensor - maintenance-free detection of rain - fast response time - rain type - precipitation gauge

Radar Precipitation Sensor R2S-UMB

The radar precipitation sensor Lufft R2S-UMB allows fast measurement of precipitation intensity and distinguishs between precipitation type (Rain, snow, sleet, freezing rain, hail). The operation is maintenance-free, thanks to radar measurement technology

The radar precipitation sensor Lufft R2S-UMB allows fast measurement of precipitation intensity and distinguishs between precipitation type (Rain, snow, sleet, freezing rain, hail). The operation is maintenance-free, thanks to radar measurement technology.

  • Rain/precipitation quantity, rain/precipitation type (Rain, snow, sleet, freezing rain, hail)
  • 24GHz Doppler radar
  • Very fast response time, maintenance-free measurement, present weather detection
  • RS-485, various RS-485-protocols, analogue output
Lufft Visibility Sensor VS20k - detection of visibility, fog, dust - road application, road weather, traffic weather rwis

Visibility Sensor VS20k-UMB

New product version of the known Lufft VS20 visibility sensor with a measurement range of 10...20'000m, easy calibration functionality, sea waterproof housing and (active) spider defence

The VS20k visibility sensor measures visibility up to 20'000 m, ideal for road traffic applications on motorways, highways or bridges. Long life time is guaranteed thanks to the sea-water proof housing design.

  • Visibility (measuring range 10 ... 20'000 m)
  • 45° forward light scattering
  • suitable for extreme ambient conditions, active spider defence, seawater resistant, compatible interfaces
  • RS-485, analogue output
V200A Anemometer - ultrasonic wind sensor - sonic wind sensor for wind turbine control

V200A Ultrasonic Wind Sensor

Extremely precise and maintenance-free measurement of wind speed and wind direction

Ultrasonic Wind Sensor, plastic housing and 20W-heater

  • Wind speed, wind direction, virtual temperature, barometric pressure
  • Ultrasonic
  • Maintenance-free measurement, suitable for extreme ambient conditions, ice-free operation, compatible interfaces
  • SDI-12, RS-485, various RS-485-protocols, analogue output
VENTUS Anemometer - ultrasonic wind sensor - sonic wind sensor for wind turbine control

VENTUS-UMB Ultrasonic Wind Sensor

Extremely precise and maintenance-free measurement of wind speed and wind direction even in the lowest temperature

Thanks to the ultrasonic measuring method the wind sensor Lufft Ventus has no moving parts and therefore needs almost no maintenance. It measures wind speed and wind direction according to the WMO guideline and acquires the barometric pressure.

  • Wind speed, wind direction, virtual temperature, barometric pressure
  • Ultrasonic
  • Maintenance-free measurement, suitable for extreme ambient conditions, ice-free operation, vibration and seawater resistant, compatible interfaces
  • SDI-12, RS-485 with supported protocols Binary, ASCII, NMEA, Modbus & analogue output
Compact Weather Sensor WS301 with detection of temperature, relative humidity, air pressure, radiation

WS301-UMB Smart Weather Sensor

Compact all-in-one weather sensor for measurement of temperature, relative humidity, air pressure and radiation.

Compact all-in-one weather sensor from the WS-Series. Measurement of temperature, relative humidity, air pressure and radiation.

  • Temperature, relative humidity, air pressure, radiation
  • NTC/T, Capacitive/RH, MEMS capacitive/Pressure, Kipp&Zonen Pyranometer/Radiation
  • Compact all-in-one weather sensor, low power, aspirated radiation shield, maintenance-free operation, open communication protocol
  • RS485 with supported protocols UMB-Binary, UMB-ASCII, Modbus-RTU, Modbus-ASCII, XDR and SDI-12
Lufft IRS31Pro-UMB passive road sensor - road weather station - rwis - motorway - highway

Intelligent Passive Road Sensor IRS31Pro-UMB

The passive road sensor IRS31Pro-UMB convinces by its two part housing design and accurate detection of road surface temperature, water film height, freezing temperature, ice percentage and many more...

The passive road sensor IRS31Pro-UMB convinces by its two part housing design and accurate detection of road surface temperature, water film height, freezing temperature, ice percentage and many more...

  • Road surface temperature, water film height up to 4mm, freezing temperature for different de-icing materials (NaCl, MgCl, CaCl), road condition (dry/damp/wet/ice or snow/moist with salt/wet with salt), friction, ice Percentage, 2 additional depth sensors
  • Conductivity measurement (ice percentage), radar measurement (water film), NTC (road surface temp.)
  • Two part housing design allows easy maintenance/re-calibration, low energy consumption allows solar operation, radar principle to measure water film
  • RS485, SDI-12, analogue outputs
Lufft ARS31Pro-UMB active road sensor - road weather station - rwis - motorway - highway - runway

Intelligent Active Road Sensor ARS31Pro-UMB

Detection of freezing temperatures independently from de-icing materials as well as road surface temperature with the embedded active road weather sensor ARS31Pro-UMB. Easy to maintain through its two parted housing…

  • road surface temperature, freezing point
  • active cooling and heating (Peltier element), NTC (road surface temp.)
  • Two part housing design allows easy maintenance/re-calibration, low energy consumption allows solar operation, freezing point determined independently from de-icing material
  • RS485
Lufft ARS31-UMB active road sensor - road weather station - rwis - motorway - highway - runway

Intelligent Active Road Sensor ARS31-UMB

The embedded active road weather sensor ARS31-UMB detects freezing temperatures independently from de-icing materials and is easy to maintain through its two parted housing…

The embedded active road weather sensor ARS31-UMB detects freezing temperatures independently from de-icing materials and is easy to maintain through its two parted housing…

  • freezing point
  • active cooling and heating (Peltier element)
  • Two part housing design allows easy maintenance/re-calibration, low energy consumption allows solar operation, freezing point determined independently from de-icing material
  • RS485
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