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Wind Direction not being recorded

Posted: Sun Nov 07, 2010 9:52 pm
by sgtbean
Hi guys,

I've got an Oregon Scientific WTGR800 up and running for a few weeks now. I use RFXCOM receiver to get it into Homeseer. I also use a 3rd party plugin that lets me upload my weather data to Weather Underground.

There I noticed the data for Wind Direction is missing on the Weather Underground page. A closer look at the submission event revealed the wind direction parameter is empty every time. If I look at the Homeseer Status page or the RFXCharts Weather page, the direction is displayed correctly. This indicates the sensor is sending it, RFXCOM is receiving it and Homeseer is processing it - BUT the plugin isn't picking it up. When I look into the RFXCOM database, I can see an "rfxdir" column in the "Wind" table, but it's empty for every sample. I assume (tried contacting the plugin creator to confirm this, but he doens't answer any of my messages) that the plugin gets its data from there and therefor the wind direction parameter is empty... Can anyone confirm whether this "rfxdir" column is normally empty or not? And does anyone know where the wind gust data is being stored, since this is also not in the RFXCOM database, but somehow the Weather Underground submission picks that up just fine...

I tried modifying the RFXCOM2.vb script (since the PH_RFXCHARTS script is encoded and I can't look inside it (does anyone know how??)) to get the direction into the database, but since I'm not sure what the parameter name is for wind direction, it doesn't work either.

Any suggestions are very welcome, since I'm hitting a brick wall every way I turn right now. Lack of proper documentation, lack of support from the creator, lack of support from Homeseer ( I tried to get help on the forums in the thread covering this Weather Underground plugin but they didn't even allow my post - no-one knows why...), no way to get into the script sources.... It's getting frustrating, when all the while this whole venture was meant to be fun :'(

Re: Wind Direction not being recorded

Posted: Sun Nov 07, 2010 10:43 pm
by b_weijenberg
The data for RFXCharts is sampled only once per hour.
Wind direction will vary too much and is therefore not stored in the database.

If you have a proper algorithm to process wind direction (and a large disk) you can save wind directions to a database or sequential file at every change using a Value Change Event on the wind direction device.