What units are the data (computer) files stored as?

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I use english units on the display and the data is stored in those units.  If one used metric units will the data be stored in metric or english?  The problem is the units type is not stored in the file.  I am writing a program to read the data and I would like it to work with either unit selection.
AcuRite you should add a unit flag and the signal strength level (say:0-3), where 0 would be a 'bad data' flag for the outdoor data.  
Thanks in advance for any help
Cliff
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clifton Liles

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Posted 2 months ago

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Bill Martin

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unsure if data is only stored one way (English). i thought sometime ago some using metric complained about English units. so you might not have an issue. if data is stored in either, you might be able to examine one metric to determine whether English or metric for all stored data.

Signal and battery strengths both would be useful and have been requested before. unsure if/when these might make it into transmitted data.
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clifton Liles

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Good news and bad news.

I set a display to ‘Metric’ and collected data for a day. I then downloaded the metric data and a ‘stand’ data set from another display. Well both appear to be stand (English) but with some differences. In the stand version all temperatures are integer but int the metric they are real. (That is; 78 vs 77.6)

There is also the problem of wind speed, which can be MPH, KPH, or knots. I am assuming that it is in MPH.

Here is one line of data from each and a header: (Header / Metric / STAND )

"Timestamp","Outdoor Temperature","Outdoor Humidity","Dew Point","Heat Index","Wind Chill","Barometric Pressure","Rain","Wind Speed","Wind Average","Peak Wind","Wind Direction","Indoor Temperature","Indoor Humidity"

"3/19/2018 12:00:00","82.4","24","42.8","82.4","82.4","29.97293","0","2.291306","4.271927","5.747684","360","77","68"

"3/19/2018 12:00:00","82","24","42","82","82","29.70716","0","2.019456","3.844734","6.019534","360","77","69"

Any clarification that AcurRite could give would be appreciated.

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Bill Martin

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if your indoor temp is in a home, then you might want to focus on that temp to determine C or F.   

see attached F vs C chart....

something similar for MPH vs KPH
Image result for mph vs kph chart


Other option is to monitor the various PWS's you want, sample data and then denote those specific stations as English/stand or metric and any time your SW captures data from a specific PWS, you know the format.  or contact those PWS owners and ask.

Since the stored data does not have ANY flag denoting which is format is used, my bet is that ALL data is stored the same way.  Just too much processing to determine which is used when they post to MyAcurite or to WU.  But just a guess.
(Edited)
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clifton Liles

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Yes, one can make a guess, but it be very nice to know.   As far as wind speed goes,  it can change very fast. And where I live all of thoes numbers are possible.