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

Synop Analyzer Binding

This binding integrates the possibility to download and interpret Synop messages.

Binding Configuration

The binding has no configuration options itself, all configuration is done at 'Things' level.

Supported Things

There is exactly one supported thing, which represents a Synop message. It has the id synopanalyzer.

Discovery

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

Thing Configuration

Besides the Synop Station Number (as synopID as a StationID string), the second configuration parameter is refreshInterval which defines the refresh interval in minutes. Synop message 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

Here is an example of thing definition:

synopanalyzer:synopanalyzer:orly [ stationId=7149 ]

Items

Number Synop_Temperature "Temperature [%.1f °C]" <temperature> { channel = "synopanalyzer:synopanalyzer:trappes:temperature" }
Number Synop_Pressure "Pressure [%.1f mb]" <pressure> { channel = "synopanalyzer:synopanalyzer:trappes:pressure" }
Number 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 Synop_Wind_Speed "Wind Speed [%.2f m/s]" <wind> { channel = "synopanalyzer:synopanalyzer:trappes:wind-speed-ms"}
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"}