Hi all,
I have the possibility of graving temperature values from another sensors but it will be cool to plot them in the flukso graphs. Another alternative is to get the Watt values out of the flukso and plot them together with the temperature.
Anyone has looked into this? I am interested to know about the Wh per C degree related to the outdoor/indoor temperature.
Sweden... you know :D
aep@it46
Hello Alberto,
What type of interfacing do your temp sensors require?
Cheers,
Bart.
Hi Bart,
First of all thanks for flukso. Now i really know that we are energy pigs :D as David mentioned in his last visit. I will like to get the relationship between indoor/outdoor temperature and power consumption. The major consumption of our house is the heating in winter. We have a heat pump system known in Sweden as IVT490
http://doc.ivt.se/download.asp?pt=files_en&fn=1_490_EN_Br.pdf
The heat pump samples different temperatures (indoor, outdoor, water, air) and makes all the magic! What is clear for us is that every extra degree of heat at home has a cost. :D
This winter we were between -10 -20 C for a whole month... that gives you an idea how critical is to have the home at 16 or 22 C inside.
Sampling the indoor temperature will be enough I guess, as i can get the outdoor temperature from the Web.
/aep
Hi Alberto,
An energy audit is a good idea to check where all that energy is going. It might not be the heat pump, especially at this time of year. Multiple servers, switches etc can also have large loads that really add up over 24 hours.
You could move the Flukso sensors to the Heat Pump to check it's consumption alone.
Also the Flukso can read high on inductive loads like switch mode power supplies, a power factor corrected power meter that you can plug in to appliances is a good way to check.
It's 16.2 inside my house as I write (Australian Winter morning), although to my shame I am burning hydrocarbons in a gas space heater to warm the room.
Cheers,
David
David. 16 is our summer here :D
Do you know any simple way to retrieve those graphs that are in the dashboard. I realized that every 5 minutes the graphs name change ;-(
Hi David again,
Let see if this makes sense. I have unplugged all devices at home with the exception of the servers and flukso reads 650 W while the UPS that the servers is connected is reading 150 W. Who is wrong here?
it's taking 125W from the UPS battery
looks like it's a 650W UPS that takes 24/24h 650W... could be possible...
Hi Alberto,
You might consider getting one of these : http://www.embeddeddatasystems.com/HA7Net--Ethernet-1-Wire-Host-Adapter_...
I'm using it in combination with Cacti running on Ubuntu.
You can add up to 100 temp (or light, current, hydro, ...) probes, cabling is very easy, it's just a 1-wire network (aka MicroLAN).
Let me know if you're interested in a screenshot.
Regards,
Bart
so you wire one of this to it?
http://www.embeddeddatasystems.com/DS18S20--1-Wire-Digital-Thermometer_p...
how long the cable can be? i guess i can not get the HA7 outdoors.. we reach -25 C. Pictures are welcome, distributors in Europe?
Indeed, you can wire as many (max. 100) of these or wind/light/humidity/rain/UV/solar/ ... etc ... sensors onto this as you want.
I've been using the basic DS1802+ temp sensor outside without any problems so far, but consider getting one of these for outdoor use : http://www.embeddeddatasystems.com/OW-TEMP-B3-12xA--Temperature-Probe_p_...
The gateway comes with a 3-port hub, each port can handle a linear, stubbed and star topology (or a mix of those 3).
The maximum cable length will depend on the cable quality (you can use Cat.5, Cat6, EIB & telephone cables) and the way you power your sensor.
I'm using parasitic power-mode (the easiest & cheapest way of working) and didn't run into the limits so far, with approx. 25 sensors active, spread all over the house & garden.
According to the specs, your cable can be up to 100m long.
I'll try to post some pictures later.
I think I bought my stuff here :
http://www.homechip.com/catalog/index.php?manufacturers_id=16&osCsid=780...
Regards,
Bart