openhab-addons/bundles/org.openhab.binding.synopanalyzer

Synop Analyzer Binding

This binding downloads and interprets SYNOP weather observation messages.

Binding Configuration

The binding itself has no configuration options; all configuration is done at the Thing level.

Supported Things

There is exactly one supported Thing type, which represents a SYNOP message: synopanalyzer.

Discovery

If a system location is set, the nearest available SYNOP station will be automatically discovered for this location. The search radius expands with each successive scan.

Thing Configuration

• stationId — The WMO station number (see the station list).
• refreshInterval — The refresh interval in minutes.

SYNOP messages are typically updated every hour.

Channels

The weather information that is retrieved is available as these channels:

Channel Type ID	Item Type	Description
temperature	Number:Temperature	Current outdoor temperature
pressure	Number:Pressure	Current pressure
wind-speed	Number:Speed	Current wind speed
wind-speed-beaufort	Number	Wind speed according to Beaufort scale
wind-angle	Number:Angle	Current wind direction
wind-direction	String	Wind direction
overcast	String	Appreciation of the cloud cover
octa	Number	Part of the sky covered by clouds (in 8th)
attenuation-factor*	Number	Cloud layer attenuation factor
time-utc	DateTime	Observation time of the Synop message
horizontal-visibility	String	Horizontal visibility range

• "Cloud attenuation factor" (Kc) as defined by Kasten and Czeplak (1980).

Example

Things

Example Thing definition:

synopanalyzer:synopanalyzer:trappes [ stationId=7149 ]

Items

Number:Temperature Synop_Temperature "Temperature [%.1f %unit%]" <temperature> { channel = "synopanalyzer:synopanalyzer:trappes:temperature" }
Number:Pressure    Synop_Pressure    "Pressure [%.1f %unit%]"     <pressure>   { channel = "synopanalyzer:synopanalyzer:trappes:pressure" }
Number:Angle       Synop_Wind_Angle  "Wind Angle [%d °]"          <wind>       { channel = "synopanalyzer:synopanalyzer:trappes:wind-angle" }
String             Synop_Wind_Direction "Direction [%s]"                        { channel = "synopanalyzer:synopanalyzer:trappes:wind-direction" }
Number:Speed       Synop_Wind_Speed  "Wind Speed [%.2f %unit%]"   <wind>       { channel = "synopanalyzer:synopanalyzer:trappes:wind-speed" }
Number             Synop_Octa        "Octa [%d]/8"                              { channel = "synopanalyzer:synopanalyzer:trappes:octa" }
DateTime           Synop_time        "Observation Time [%1$ta %1$tR]" <clock>  { channel = "synopanalyzer:synopanalyzer:trappes:time-utc" }