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I'm looking for something that is able to determine if an electrical single is present or not through Linux perferrably. The senerio I'm trying to figure out... I have a ...
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- 12-30-2010 #1
- Join Date
- Dec 2010
Home electrical circuit monitor?
The senerio I'm trying to figure out... I have a hydronic heating system and I want to be able to do some kind of reporting to which zones are requesting heat (I have 3 zones) and at which time of day, also comparitive to the temperature outside.
So, in the simplest broken down form, I just need a way to determine if the zone sensor is on, or if a signal has been sent to it. I know the voltage (24v) of the circuit and I have the temperature thing already solved.
Most of this is done in perl, I just don't have a way to get the information to the system that the zone has been tripped by the thermostat.
So does anyone know of a way to determine or watch a eletrical circuit or query if the circuit is powered in Linux?
- 01-01-2011 #2
- Join Date
- Apr 2009
- I can be found either 40 miles west of Chicago, or in a galaxy far, far away.
I think you need some sort of sensor that talks to an A-D converter that your system can query. There are quite a few of these on the market. I have an ARM PC-104 system board that runs Linux which has all of that on-board, so I could connect it to a 24v circuit and read the values, converting the digital values to some temperature or voltage value. The board costs about $150USD - 200MHz ARM w/ 64MB RAM, 100mbps ethernet, dual USB ports, 4 RS-232 ports, etc. It would be ideal for this sort of stuff. You can find a number of these boards here: Technologic Systems PC/104 Single Board Computers and PeripheralsSometimes, real fast is almost as good as real time.
Just remember, Semper Gumbi - always be flexible!