AWOS-210A Automatic Weather Observing System(AWOS)
一、Business
“Bright Aviation” supplies complete sets of equipment, including spare parts supply, installation and commissioning, technical consultation, after-sales service, spare parts support, equipment repair, factory training, software upgrade and other businesses.
二、Overview
1、Automatic Weather Observing System (AWOS) provides six elements of conventional weather around the airport runway (wind direction, wind speed, temperature, humidity, pressure, precipitation), runway visual range, cloud height, weather phenomena and other sensor data, as well as the corresponding monitoring and automation software integration system. It is one of the necessary infrastructures in modern aviation system to ensure flight safety and improve flight operation efficiency through high-precision and highly reliable real-time weather data.
2、The difference between “AWS” and “AWOS” :
(1) AWS is a simple set of weather observation equipment, which only provides and measures six elements of conventional weather data (wind direction, wind speed, pressure, temperature, relative humidity and precipitation) and system software around the airport runway.
(2) AWOS can not only provide and measure the six elements of conventional weather data around the airport runway, but also provide the runway visual range, cloud height, weather phenomenon and other sensor data, and is equipped with a powerful monitoring and automation software integration system.
三、Characteristic
1. Monitor the weather data of six elements, runway visual range, cloud height data, weather phenomenon and other sensor data 24 hours a day.
2. Collect weather data in real time, and provide visual graphics and voice alarm prompt in time after exceeding the threshold.
3. Powerful software functions and simple software interface.
4. Communication mode: wired (optical cable or telephone cable) and wireless dual backup communication mode (optional).
5. Power supply mode: AC and DC power supply.
6. Aluminum alloy outdoor waterproof case is adopted, which is corrosion resistant, waterproof and moisture-proof.
7. Continuous working for 24 hours, working stability ≥ 15 years.
8. Anti interference technologies such as lightning protection and noise reduction, electromagnetic compatibility, etc. are used to operate in various adverse weather environments, with an average time between failures ≥ 10000 hours.
四、 AWOS Outdoor Equipment Block Diagram (South, Middle And North Of Runway)

五、AWOS Block Diagram

六、Parameter
Name | Measurement Range | Maximum Allowable Error | Measurement Precision | Remarks | |
Temperature | -50~+60℃ | 0.17℃ | ±0.1℃ | / | |
Humidity | 0~100% RH | 2% RH | ±1%(≤90% RH) ±1.7%(>90% RH) | / | |
Wind Direction | 0~360° | 3° | ±1° | / | |
Wind Speed | 0~75 m/s | ±0.5m/s(V≤5m/s) ±10%(V>5m/s) | ±0.1m/s | V is the actual wind speed. | |
Pressure | 500 ~1100hPa | 0.3hPa | ±0.1hPa | / | |
Rainfall | 0~500mm | 0.1mm | ±0.4mm(≤5mm) ±2%(>5mm) | / | |
ceilometer | 0~7500m | ±10m(≤100m) ±10%(>100m) | 1m | / | |
Visibility: Meteorological optical visual range MOR | 10~50000m | ±50m(MOR≤600m); ±10%(600m<MOR≤1500m); ±20%(MOR≥1500m)。 | 1m | / | |
Visibility: Runway visual range RVR | 10~2000m | ±10m(RVR≤400m); ±25m(400m<RVR≤800m); ±10%(RVR≥800m)。 | 1m | / | |
Background brightness | 0-40000cd/m2 | 10% | / | / | |
Pole Height | 3~10m。 | / | |||
System Power Supply | AC power supply (220V AC ± 15%, 45 ~ 63Hz, single-phase), DC power supply. | / | |||
Communication Mode | Wired | RS-232 | Communication distance ≤ 15m. | / | |
RS-485 | Communication distance ≤ 1km. | / | |||
Optical Cable | Communication distance≤ 20km. Communication mode: point-to-point or optical ring network. | / | |||
Wireless | Mobile Network | 5G All Netcom. | / | ||
5G Bridge | Communication distance ≤ 20km (signal is not blocked). | / | |||
Work Environment | 1. Temperature: indoor -10°C~+50°C, outdoor -50°C~+70°C. 2. Relative humidity: indoor 0~95% (non condensing);outdoor 0~ 100% . 3. Altitude: 0~4500m MSL. 4. Work cycle: continuous unattended. 5. Wind speed conditions: the outdoor antenna can work normally when the wind speed is up to 161 km/h and the antenna icing is 2 cm thick. | ||||
七、Block Diagram
No. | Name | Model | Qty/Unit | Description |
一、AWOS system outdoor detection equipment list (Installed at the south, middle and north positions of the runway). | ||||
1 | Automatic Weather Station | / | 2 Set | Including temperature, humidity, air pressure, wind direction, wind speed, rain sensor, 10m high aluminum alloy folding tower, data acquisition box, obstacle light, lightning rod, etc., installed at the south and north ends of the runway (near the glide slope). |
2 | Independent Wind Measuring Station | / | 1 Set | Including wind direction, wind speed, rain sensor, 10m high aluminum alloy folding tower, data acquisition box, obstacle light, lightning rod, etc. Installed at the middle end of the runway. |
3 | Ceilometer | / | 2 Set | Installed at the south and north ends of the runway (near the glide slope). |
4 | Forward Scatterometer | / | 2 Set | Including aluminum alloy folding pole and power supply unit, which are installed at the south and north ends of the runway (near the glide slope). |
5 | Weather Phenomenon Sensor | / | 1 Set | Including aluminum alloy folding pole and power supply unit, which are installed at the south end of the runway (near the glide slope). |
6 | Background Brightness Meter | / | 1 Set | Installed at the south end of the runway (near the glide slope). |
二、,AWOS system data processing terminal equipment list(Installed at ATC building machine room). | ||||
1 | Central Data Processing Server | / | 2 Set | / |
2 | Computer Terminal | / | 5 Set | Desktop computer terminals are installed in the tower of the air traffic control building, station control, weather room, etc. |
3 | KVM Switcher | / | 1 Set | / |
4 | Runway Light Data Acquisition Unit | / | 1 Set | / |
5 | GPS Clock Synchronization Server | / | 1 Set | / |
6 | AWOS System Application Software | / | 1 Set | / |
7 | External Data Output Server | / | 1 Set | / |
8 | Cabinet | / | 4 Set | / |
9 | Switch | / | 1 Set | / |
10 | Calibrate Equipment | / | 1 Set | / |
11 | Spare Part | / | 1 Set | / |
12 | Other Accessories | / | 1 Set | / |
八、Installation Engineering
(1)In September 2021, “Bright Aviation” completed the equipment supply, installation, commissioning, and training for the AWOS system at Yutian Airport in Xinjiang Province, China.
AWOS equipment at the south of the runway (ILS Glide-Slope station), as shown below.

(2)AWOS equipment at the middle of runway , as shown below.

九、Meeting Standards
1. CAAC,《Civil Aviation Weather Code Standard》, MH/T4016.6-2008。
2. CAAC,《Code for Ground Observation of Civil Aviation Meteorology》, AP-117-TM-02R1。
3. CAAC,《Civil Aviation Meteorology, Part 9: Data Output Format Standard of Automatic Weather Observation System, MH/T4016.9-2011。
4. CAAC,Technical Specification for Civil Aviation Automatic Weather Observation System, AP-117-TM-2018-03R1。
6. CAAC,Technical Specification for Meteorological Observation Data Processing System of Civil Airport, AP-117-TM-2012-04。
7. CAAC,General Technical Requirements and Inspection Specifications for Fragile Pole and Tower, AC-137-CA-2014-01。
8. ICAO,Annex 3.
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