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AUTOMATIC WEATHER STATION (AWS)

AUTOMATIC WEATHER STATION (AWS). Automatic Weather Station. INTRODUCTION Weather observing system for Airports It measures, processes, stores, presents and communicates met data Provides data to observers, ATC & other users Designed for IAF requirements

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AUTOMATIC WEATHER STATION (AWS)

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  1. AUTOMATIC WEATHER STATION (AWS)

  2. Automatic Weather Station • INTRODUCTION • Weather observing system for Airports • It measures, processes, stores, presents and communicates met data • Provides data to observers, ATC & other users • Designed for IAF requirements • Modularity of systems allows future extensions

  3. Automatic Weather Station • FIELD EQUIPMENT • SENSORS - WIND SPEED - WIND DIRECTION - TEMPERATURE - RELATIVE HUMIDITY - PRESSURE • DATA ACQUISITION SYSTEM • METEOROLOGICAL MAST • SOLAR POWER SYSTEM • UHF RADIOS • YAGI ANTENNA • LIGHTNING ARRESTER • SEALED MAINTENANCE FREE (SMF) BATTERY

  4. Automatic Weather Station • Sensors mounted on 4m Mast • Installed near each end of runways • Connected to a Data logger • Met data is transmitted to Met Section via a UHF Radio link (450-470 MHz) • TX through directional Yagi Antenna • Frequency of data update for winds is 5 sec & for temperature is 1 min • Powered by Solar panel / Mains rechargeable batteries • Set of walkie-talkie for communication

  5. Radio Link 400 MHz Radio Link 400 MHz Datalogger, Radio, Pressure Master Radio Battery, charge controller, Torr Transformer Ethernet converter AWS-2 AWS-2 Switch Met Display ATC Display Met Observer Automatic Weather Station AWS for IAF: System Overview

  6. Sensors Sensors Datalogger - 2 Datalogger- 1 RS232 RS232 Radio- 2 Radio- 1 Radio Link 400 MHz Master Radio 3 Km 3 Km RS232 Rs232 to Ethernet converter Ethernet Switch 192.168.140.2 Backup ATC Display 192.168.140.4 IMS Observer PC 192.168.140.3 Backup MET Display 192.168.140.5 Dot Matrix Printer Automatic Weather Station System Layout

  7. Wind Speed Sensor Sensor Type : Opto- Electronics. Type of Material: Carbon Fiber reinforced plastic. Make: Germany. Specification :- Accuracy : +0.5 m/s Range 0 to 75 m/s Operating range temperature : -40 to 60 degree celsius Wind Direction Sensor Sensor Type : Potentiometer. Type of Material : Aluminum Light Weight. Make: Germany. Specification :- Accuracy : 1.5degree Range 0 to 360 degree Operating temperature : - 40to 60 degree Celsius

  8. Relative Humidity Sensor Sensor type: hygromer c94 Type of material: capacitive thin film- polymer. Make: Rotronic. Specification- Accuracy : + 1.5% Range : 0 to 100% Operating temperature : - 40 to 60 degree Celsius Temperature Sensor Sensor Type : Type of Material : Platinum pt100. Make: Switzerland. Specification- Accuracy : + .2degree Celsius Range : - 40 to 60 degree Celsius Operating temperature : - 40 to 60 degree Celsius

  9. Pressure Sensor Sensor type: barometer Type of material: SI capacitive pressure sensor. Make: Finland. Specification- Accuracy : + 0.2 hPa Range : 600 to 1100 hPa Operating temperature : - 40 to 60 degree Celsius Torrodial Transformer The heating of wind sensors at subzero temperature is achieved using a TORRODIAL transformer It is mounted Inside the battery enclosure and provide 24 AC supply to wind sensor.

  10. Automatic Weather Station Central Meteorological System • Dedicated for receiving and displaying Met data from AWS • PC with IMS-4 software (creation, receiving, sorting, archiving and utilization) • LCD display for Met Office and ATC • LAN, RS 232, Radio-modem set for Observer’s workstation.

  11. Automatic Weather Station Met Display

  12. Automatic Weather Station ATC Display

  13. Automatic Weather Station Main Menu

  14. Automatic Weather Station Synoptic Data Display

  15. Automatic Weather Station Synop Code Template

  16. Automatic Weather Station Metar Code Template

  17. Automatic Weather Station Diversion Weather

  18. Automatic Weather Station Graphical Data

  19. Automatic Weather Station Archieves

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