ALLMETEO OPEN WIND Data Format: MeteoHelix IoT Sigfox & LoRaWAN wireless message bit string verifier calculator
This calculator is meant for quick message decoding for MeteoWind IoT wind transmitters that send 9 byte bit-shifted string. (Sigfox: 9 Bytes comply with Worldwide regulations duty cycle to allow 144 messages/day.)
MeteoWind IoT PROTOCOL START BIT (Type) = 0
Input 9 byte or longer string (hex) =
hex converted to binary =
bit shifting string start position =
Physical Property Measured =
converted to binary =
converted to decimal =
Converted value in output units =
max no. of values
req min value
req max value
FINAL CALCULATED OUTPUT VALUES =
Wind_ave10 value is mean (average) wind speed for the 10 minute interval.
Wind_max10 value is added to the Wind_ave10 value.
Wind_min10 value is subtracted from the Wind_ave10 value.
Dir_ave10 is the mean (average) wind direction for the 10 minute interval.
Dir_max10 is the wind direction of the maximum gust wind speed (Wind_max10).
Dir_hi10 value is added and Dir_lo10 subtracted from the Dir_ave10.
These values set the range of wind directions to the right and left of the mean wind value, in-between which 68.2% wind speeds occurred during the sampling time interval of 10 minutes.
Sensor Error or N/A = Maximum possible bit value for each measurand in binary = 111111…. (FFFFF…. In hex) signifies measurement error code.
Byte string conversion calculations to binary number format
number position in byte string =
hex value @ position in byte string =
converted to binary value @ position in byte string =
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