Comments (3)
@bunnyevans
Refer to Communication Interface Manual :
(*2) Discomfort Index, Heatstroke risk factor (WBGT approximation) are calculated only by temperature and humidity. These information is just a rough indication and for referential use only.
from envsensor-observer-py.
Thank you, I found that section after you mentioned the magic word WBGT
However, there is no explanation of the discomfort index.
Currently:
T = 31.25
H = 63%
HSR = 27.8 (which seems in line with WBGT)
DI = 80.9
The Discomfort index is a mystery. in the sensor_beacon.py we find:
return (0.81 * temp) + 0.01 * humi * ((0.99 * temp) - 14.3) + 46.3
https://keisan.casio.com/exec/system/1351058230 Seems to think that DI = WBGT and gives 27.8
DI = T - 0.55(1-0.01H).(T-14.5)
Perhaps I need to ask Omron nicely?
from envsensor-observer-py.
@bunnyevans
This is just a matter of unit conversion between degC and degF.
The formula in sensor_beacon.py generate DI value in Fahrenheit expression while the argument is in Celsius.
So, the conversion of C and F is also implemented in this DI calculation formula.
from envsensor-observer-py.
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from envsensor-observer-py.