Remote Road Surface Condition Sensor - Series 5433
Remote Road Surface Condition Sensor - Series 5433

 

 

FEATURES:

 

  • No Road Surface Cutting
  • Long Optical Range
  • Open Architecture Communications
  • Larger Measurement Area for More Representative Reading

 


 

DESCRIPTION:

The RWIS IceSight Remote Road Surface Condition Sensor - Series 5433 is a non-intrusive surface condition sensor that uses laser and infrared electro-optical technology to read surface condition, temperature and reduction of surface grip due to water, snow and ice. The IceSight Remote Road Surface Condition Sensor’s larger measurement area (than embedded or in-road sensors) provides for more representative and reliable results. The actual measurement area of an embedded or in-road sensor is a one square inch or smaller spot compared to the one foot diameter measurement spot at the Remote Road Surface Condition Sensor's typical 30 foot range.

Remote Road Surface Condition Sensors are susceptible to degraded performance due to soiled optics over time, just as embedded or in-road surface sensors need to be periodically cleaned. Unlike other remote sensors that use exposed convex lenses, or flat plate face designs that are easily soiled and difficult to clean, the IceSight Remote Road Surface Condition Sensor uses a specially designed passive lens protection system (Spray Guard) to help protect it from accumulation of road spray and dust. Once the Remote Road Surface Condition Sensor reports that its lens needs to be cleaned, the Spray Guard is easily removed with thumbscrews and cleaning the flat window is simple. We even provide a retention chain so the Remote Road Surface Condition Sensor's Spray Guard is not accidentally dropped during cleaning.

Mounted easily on nearby traffic, luminary, camera poles or on RWIS towers, this rugged all-weather Remote Road Surface Condition Sensor provides an economical means of gathering road condition information for ATMS, MDSS, and Weather Responsive Traffic Management applications to improve traffic safety and road maintenance programs. The Remote Road Surface Condition Sensor uses an industry standard camera mount, much like you’d find on a high quality video camera. Many Remote Road Surface Condition Sensor mounting options are available from standard industry sources for pole mount, tower mount, signal arm mount, or just about any other configuration. The camera style mount means it is a simple matter to re-aim the Remote Road Surface Condition Sensor if needed. The convenient green dot laser helps confirm the target area. Relocating the Remote Road Surface Condition Sensor to a new location is straight forward too, and entails unbolting the sensor from its mount, disconnecting the cable and moving it to a new location. Relocating an embedded or in-road sensor once its epoxied in place is cumbersome and expensive. Many embedded or in-road sensors can’t be reused, or the warranty is voided if it is. Sometimes, construction of bridge road surfaces doesn’t allow enough space between reinforcement bars for an embedded or in-road sensor. The IceSight Remote Road Surface Condition Sensor can often be installed without the need for expensive and hazardous lane closures. Frequently mounted to existing ITS structures, Remote Road Surface Condition Sensors can often be installed and maintained without lane closure, and are well away from risks imposed by road work. The higher initial purchase cost of a Remote Road Surface Condition Sensor is offset by the high construction and on-going maintenance and repair costs of embedded or in-road sensors due to milling, slow plows, paint striping, and high traffic volume.

Because the lenses for the IceSight Remote Road Surface Condition Sensor are housed behind a clear optical window there is no need for power consumptive lens heaters. Low power consumption is easy on your power budget and is suitable for solar and wind powered sites. There are no moving parts to fail or degrade.

The IceSight Remote Road Surface Condition Sensor monitors the near infrared spectral differences of the roadway surface to determine the condition of the surface. Data is analyzed in real-time and a road condition state is reported enabling road management personnel to take immediate action as roads become hazardous. Using special signal processing techniques and comprehensive data analysis, the Remote Road Surface Condition Sensor is immune to passing traffic and various road treatment chemicals. Surface condition information eliminates road-treatment guesswork and supports more effective allocation of limited treatment resources.

When used in conjunction with our Model 5470 NTCIP MiniRWIS Remote Processing Unit, the IceSight Remote Road Surface Condition Sensor provides NTCIP 1204 ESS standards compliant open architecture communications. Standard open-architecture data output includes air temperature and relative humidity (at the sensor), road surface temperature, road surface state and a road surface grip coefficient. Road surface states reported include 1 dry indication, 3 wet, 2 snow, and 2 ice indications. In addition, a road surface grip coefficient is provided in 2 formats. The first, road surface grip indication is provided as a numerical coefficient, indicating relative grip on a scale of 0 (worst) to 1 (best). The second classifies surface grip as good, fair and poor, which is useful for stating the grip condition in terms understandable to the motorist. Finally, a comprehensive internal algorithm checks 3 different behavioral parameters to evaluate and report the optical condition of the easily cleaned flat laser window.

Connections are made in a convenient breakout box that houses the Remote Road Surface Condition Sensor's optional Hardened Wireless Access Point (WAP). This WAP allows for convenient access to various set-up and calibration functions from ground level without making any direct electrical connections. An “Auto-Cal” function is provided to simplify and automate field calibration to the target road surface. HSE offers an annual off-season, ship-in, factory calibration and “parts included” tune-up plan to make on-going Remote Road Surface Condition Sensor maintenance worry-free. The IceSight sensor is designed, built and supported in the United States by High Sierra Electronics, Inc. is a ISO9001:2008 Certified company.

CALIBRATION PANEL:

      Remote Road Surface Condition Sensor Calibration Panel

 

IceSight Remote Road Surface Condition Sensor Calibration Panel Java applet

 

The IceSight Remote Road Surface Condition Sensor's Calibration Panel Java applet provides a simple and intuitive user interface for setup and calibration. It is run on a notebook or laptop PC from ground level by connecting to the hardened Wireless Access Point (WAP) or via wired Ethernet to the equipment cabinet.

The distinct surface conditions measured by the Remote Road Surface Condition Sensor are represented by the colored ellipses shown graphically on the screen of the IceSight Calibration Panel. The Remote Road Surface Condition Sensor's current measurement is shown graphically (red dot) with a trail showing the changes in road surface conditions over time. Using this intuitive graphical interface, changes in surface condition can be locally or remotely observed in real-time.

The stream of ASCII data received from the Remote Road Surface Condition Sensor is shown on the calibration panel and reports all the parameters measured by the sensor. This provides for a clear method of understanding the Remote Road Surface Condition Sensor's interpretation of current and recent surface conditions during set-up and maintenance activities.

Parameters such as IP address and surface and pavement temperature calibrations are configured using this applet panel as well. The included Auto-Cal routine provides automated calibration to the current road surface, simplifying the set-up process. Any configuration changes are then saved to the Remote Road Surface Condition Sensor. The Calibration Panel allows for loading and saving the IceSight Remote Road Surface Condition Sensor's configuration file in the field, and provides local data logging on an attached PC. All this is done from ground level via wireless connection to the WAP, or via direct Ethernet connection without the need for direct access to the Remote Road Surface Condition Sensor itself.


 

APPLICATIONS:

      Remote Road Surface Condition Sensor Installation

 

Remote Road Surface Condition Sensor Installation

 

  • Surface condition related traffic safety hazards
    • Highways and surface streets
    • Bridge decks and elevated roadways
    • Intersections
  • Weather Responsive Traffic Management
    • Modified signal timing when slippery
    • Black ice warning
    • Hydroplaning risk warning
    • Message sign control
  • Parking lot safety
  • Automatic spray anti-icing systems
  • Traveler information systems
  • Aircraft runways and taxiways

 

SPECIFICATIONS:

Range ...........................   3 to 15m (10 to 50ft) @ 45º (concrete)
3 to 10m (10 to 33ft) @ 45º (black asphalt)
Measured Surface ...........................   Concrete or Asphalt
Measurement Area ...........................   30.5cm (12in) diameter @ 10m (30ft)
Elevation Angle ...........................   30º to 85º from road surface, 45º optimum
Sensitivity ...........................   0.01in Ice/Water, 0.05in Snow
Air Temperature ...........................   ±0.2°C at 0°C,±0.5°C at -40° to 65°C
Relative Humidity ...........................   ±1.8% at 10% to 90% RH,±3% at 0% to 10% and 90% to 100%
Surface Temperature ...........................   ±0.5°C at 0°C,±1°C at -40° to 85°C
Surface States ...........................   Dry
Wet (3) - damp, wet, standing water
Snow (2) - snow, un-compacted snow
Ice (2) ice, black ice
Surface Grip ...........................   Relative grip on a scale of 1 (best) to 0 (worst)
Classified surface grip (good, fair, poor)
Optics Condition ...........................   Internal algorithm evaluates and reports the optical condition of optical window, indicating cleaning or maintenance required.
Targeting ...........................   Removable High Visibility Green Laser
Communication ...........................   EIA-485, multi-drop capable (up to 8 addresses), EIA-232, Ethernet
Diagnostics ...........................   Start-up BIT, One Digital Test Signal
Voltage Range ...........................   9 to 14 VDC
Power Consumption ...........................   4.2 Watts
Operating Temperature ...........................   -40º to 65ºC (-40º to 149ºF)
Cable ...........................   5m (5ft) to IP67 rated connector. Optional 7.5m (25ft) cable extension
Mounting ...........................   3x¼in - 20 holes, spaced 1 inch
Safety ...........................   Eye Safe Class 1 Lasers
Certification ...........................   CE Marked
Dimensions ...........................   45x13 cm (17.75x5.25 inch)
Weight ...........................   3.6 kg (8 lb)
Shipping Weight ...........................   4.5 kg (10 lb)
Warranty ...........................   1 year, extendible year by year

 

ORDERING GUIDE:
HSE Warranty
General Terms and Conditions

Model 5433-24 ......... IceSight Remote Road Surface Condition Sensor with Wired LAN and 30 foot cable            
Model 5433-25 ......... IceSight Remote Road Surface Condition Sensor with Wireless LAN in NEMA Termination Box, 6 foot cable            
Model 5433-26 ......... IceSight Remote Road Surface Condition Sensor with Wired LAN in NEMA Termination Box, 30 foot cable            
Model 5433-28 ......... IceSight Remote Road Surface Condition Sensor with Wireless LAN in NEMA Termination Box, 2 foot cable            

 

OPTIONAL:

Model 5433-60 ......... 30 Foot Extension Cable (Male to Female connectors) for Model 5433-25/28            
Model 5433-65 ......... 30 Foot Extension Cable (Female connector on sensor end) for Model 5433-26            
Model 5433-66 ......... Additional Extension Cable, Per Foot            
Model 5433-70 ......... Mounting Bracket (3 to 8 inch Pole)            
Model 5433-80 ......... Annual Service Plan: (Ship-in one time per year, clean, refurbish, and calibrate. Includes all necessary parts, including laser and optical parts, if needed. Warranty terms apply.)            

 

RELATED PRODUCTS:

Model 5470-02 ......... NTCIP Mini-RWIS Remote Processing Unit 12VDC
Model 5400-03 ......... NTCIP RWIS Remote Processing Unit, 115VAC
Model 5439-00 ......... Surface Sentinel Fixed Road Surface Temperature Sensor
Model 5436-00 ......... Surface Sentinel Mobile Surface Temperature Sensor with Mobile Display Unit
Model 5435-00 ......... RWIS Mobile IceSight Remote Road Surface Condition Sensor
Model 5721-05 ......... RWIS Road Sensor Station
Model 5434-00 ......... RWIS Road Visibility Sensor
Model 5438-00 ......... RWIS Present Weather and Visibility Sensor
Other Weather Sensors


 

SUPPORT:

Other Road Weather applications: Applications
IceSight Remote Road Surface Condition Sensor - Series 5433: Datasheet
IceSight Remote Road Surface Condition Sensor - Series 5433: Manual