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var chillCount = 4
rule "Windchill_Calculate"   //  thx to @Udo_Hartmann for the Rule-Body  and @dmaillie for the math-stuff - 2019-01-13
when 
        Item localCurrentTemperature received update
then 
    if(!(localCurrentWindSpeed.state instanceof Number))
    {
        logWarn("windchill","Windspeed not of Type Number!")
        return;
    }
    if(!(localCurrentTemperature.state instanceof Number)) 
    {
        logWarn("windchill","Temperature not of Type Number!")
        return;
    }
     var speedCurrent = Math.pow((((localCurrentWindSpeed.state as Number).floatValue) * 3.6), 0.16)
          //logInfo("windchill","Speed: " + speedCurrent)
     var tempCurrent = (localCurrentTemperature.state as Number).floatValue
        //logInfo("windchill","Temp: " + tempCurrent)
    owm_localCurrentWindchill.postUpdate(13.12 + 0.6215 * tempCurrent - 11.37 * speedCurrent + 0.3965 * tempCurrent * speedCurrent )
    chillCount ++
    if (chillCount >= 4)  // logInfo every 2 hours (or every 4th time) - Temperature is updated every 30 Minutes by another Rule/Binding(localCurrentTemperature)
    {
        logInfo("windchill"," I'm still alive")
        chillCount = 0
    }
end

Code: Alles auswählen

Number OWM_Current_Windspeed "Current Wind Speed [%.1f m/s]" <wind>
(Weather)
{ channel="openweathermap:weather-and-forecast:86b42b76:local:current#wind-speed" }