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Subject: Orange County, NC Beekeepers
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- From: Blair Christian <blair.christian AT gmail.com>
- To: Marty Hanks <marty AT justbeenc.com>
- Cc: Alwyn Smith <alwyn.smith AT googlemail.com>, betsey spencer <betseysbees AT gmail.com>, Orange County Bees <ocba AT lists.ibiblio.org>, NaturalBeesinNC AT yahoogroups.com
- Subject: Re: [ocba] (no subject)
- Date: Tue, 23 Oct 2012 14:41:57 -0400
For some reason I'm interested in real time monitoring of one or more hives.
I have been in touch with these guys:
http://hivetool.org/
and also with the guy from AES who presented on this last summer.
I have a lot of hardware and have talked with Alwyn about this a bit.
With the cost of hardware, you can almost do it for $50/hive (Real
time monitoring of temp in/out, humidity, weight)
I have tinkered with some monitoring software (in the statistical
process monitoring sense http://en.wikipedia.org/wiki/Control_chart ).
That way you can have it email you when it goes from dearth to flow
(or vice versa) or when there's a swarm or some other unusual
variation.
I have also looked into some libraries for image processing (ie,
taking photo(s) of a frame and counting (1) bees and (2) contents of
each cell). If anybody wants to help out and get it off the ground it
would be great. I just don't have much extra time right now).
Here are a couple other things:
Note: one of the bottlenecks is coming up with a cheap, precise and
accurate automated scale...
12 probe temp setup, with solar power (any arduino; expensive)
http://www.maxjusticz.com/honey-bee-tracking-box/
Bathroom scale based hive weight sensor (cheap, other board)
http://makingthingswork.wordpress.com/
To combat temp effects on weight measurements:
"i had to spend a long time calibrating the scale. the system has a
/very/ strong temperature coefficient. I probably spend 5 weeks with
the scale in the garage with between 45 and 90 lbs on it, trying to
figure out how to get it to produce a flat reading.
"In the end, I determined that the voltage swings were primarily due
to the attiny, and by setting up a voltage divider to produce a fixed
voltage, i was able to compensate for the fluctuations. With the
current setup, i am able to get readings at about +/- .5 lb of
accuracy, even though the resolution is much better than that. For the
purposes of beekeeping, this is just fine. My next version will be
much better, I hope :)"
On Sat, Oct 20, 2012 at 7:27 PM, Marty Hanks <marty AT justbeenc.com> wrote:
> Hello all,
>
> I came across this tonight while doing some research. Very interesting guy
> for sure and this link is for a low cost DIY "portable Hive Scale" !!
>
> Really cool stuff. http://www.beehacker.com/wp/?page_id=55
>
> Cheers,
> Marty Hanks
> Just Bee Apiary
>
>
>
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-
[ocba] (no subject),
Marty Hanks, 10/23/2012
- Re: [ocba] (no subject), Blair Christian, 10/23/2012
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