ROAD & WEATHER INFORMATION SYSTEM

Posted: 3 Februari 2010 in Aplication & System, Lufft
Tag:,

 

LUFFT Mess- und Regeltechnik GMBH

(Stuttgart – Germany)

menghadirkan suatu system informasi kondisi jalan & cuaca dengan monitoring secara online dan realtime serta akurat.

System seperti ini banyak dibutuhkan di berbagai industri dan fasilitas di berbagai instansi, diantaranya :

  • industri agrobisbisnis
  • industri pertambangan
  • industri petrokimia
  • penelitian & research
  • BMKG
  • pengelola fasilitas publik seperti : jalan tol, bandara, dll.

Road Weather Monitoring System

Dibawah ini salah satu konfigurasi dari Lufft untuk monitoring kondisi parameter cuaca secara online.

climate monitoring diagram Diciptakan oleh LUFFT dengan standard presisi tinggi untuk diaplikasikan dengan berbagai kondisi yang ekstrem sekalipun.

Berikut  fitur dan literatur dari system LUFFT – Road Weather Information System

LUFFT Road Weather Information Systems
Environmental Measurement
Data for ESS
Road Warning
ESS-Environmental
Sensor Stations
Ice-warning Systems
Intelligent Road Sensor IRS

meteorological sensor

precipitation

air pressure

    Meteorological Sensors.
  • Air temperature and relative humidity
    (with non-ventilated radiation protection as standard, ventilated optional)
  • Wind direction and wind speed (Figure 2)
    Heated or unheated
    Reaction values 0.1 m/s, 0.3 m/s, 0.6 m/s
    Ultrasonic process or “Half-cup anemometer”
    Advantage of ultrasonic process: no mechanically moving parts
  • Precipitation
    Precipitation quantity
    Precipitation intensity
    Precipitation type (rain/snow)
    Maintenance-intensive methods such as the tipping-spoon process are not ideally suited to road traffic applications.
  • Air pressure (Figure 3)
    Global radiation in w/m2
    “Traffic Weather Sensors”:
    Road probe for the capture of road temperature(s) and road conditions (dry /moist /wet /ice /snow)
    Water film level
    Residual salt
    Freezing temperature
  • Visibility 0..2000m (0..1000m)
  • Snow level sensor (ultrasonic)
  • Camera
  • Road Sensor

    The heart of any weather station in road traffic technology is the precise capture of the various road conditions.

    The road probe is built into the road and can be replaced at any time
    without the need to remove it from the road.

    The following measurement quantities are captured:
    – Road temperature and optionally 2 further temperatures,
    e.g.: at 30 cm and 5 cm depth
    – Residual salt content and calculation of freezing temperature
    – Road condition as dry, moist, wet, ice, snow
    – Water film level

    The passive sensor has minimum energy consumption and is typically powered by 12V. By using an RS485/RS232-converter the measurement information can be transferred digitally for further processing.

    Intelligent road sensor with built-in micro computer “Multi Sensor System”

    imageimage image
    image

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    Precipitation Systems / Details

    R2S Radar Rain Sensor
    Precipitation quantity, Precipitation type, Precipitation intensity

    Compatible with previously installed processes: tipping and photoelectric barrier principles
    The R2S operates with a 24GHz Doppler Radar, with which the drop speed is captured.
    The precipitation quantity is calculated from the correlation of drop size and speed.

    Maintenance-free
    Rain/snow differentiation
    Settable resolution for determination of quantity: 1mm, 0.1 mm or 0.01mm
    Interface: RS485/RS232 and 2 digital outputs
    Replacement for IRSS88 and tipping spoon

    Historically:
    the tipping-bucket/weight principle has been used in meteorological
    applications, enabling the measurement of precipitation quantity.
    Optical sensor technology is applied for Road Weather
    Information Systems.
    Neither method provides accurate determination of the type of precipitation through direct measurement.

    Disadvantage:
    high maintenance due to build-up of dirt around the measuring device.

    New:
    Maintenance-free radar-based precipitation sensor

    data capture EMP=External Measurement Point

    Various dataloggers are available.
    The OPUS II has 8 or 15 channels, the OPUS200 module can be built from 2 to 300 channels.
    Lufft dataloggers typically require 12V-power supply, so that solar operation is also possible in addition to mains.
    Power supply to the logger modules is typically 12V.
    For heated sensors, a universal 24V mains adapter 8161.SV4 is available.
    Provided that no heated sensors are installed, the equipment can be operated with a small solar panel (10w), likewise the GSM modem in standby mode.
    With the modular OPUS200 system the highest degree of reliability is guaranteed in long-term operation by means of the equipping of each module with its own storage block, microcomputer and real-time clock. In this way, the modules work independently of one another and are connected through a CAN bus.
    Schematic example of the modular construction of a weather station.
    All sensors, whether with analogue output signal or intelligent interface
    (R2S/IRS), are connected to OPUS200 modules.
    The same number of RS232 interfaces as OPUS modules is available, whereby several terminal devices may be connected simultaneously, such as:
    – Service laptop
    – Telephone modem for automatic transmission
    – IOC for the forwarding of data to traffic management systems

     

    2-channels datalogger / transmitter offering the following functions:
    – network up to 150 modules
    – each module can be used as interface for data transmissions
    – multiple interfaces for data transmission within a Network
    – data transmission via RS232 and adjustable transmission speed(4800 ..57600 baud).
    – as actuator: the output can be used for resistance-, current- and voltage measurements.
    – display for measurement indication
    – installation on 35 mm rail
    – Software SmartControl included with each module.

    1/2 actuator output D/C

    3/4 Bus-input/-Ausgang
    5 Display
    6 Serial Interface
    7 Reset button
    8 LED status
    9/10 Sensor input B/A

    An OPUS200 open communication protocol exists for direct interrogation of the OPUS200 modules.

    dataloggerimage datalogger #1
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