energy monitor

Projects General Guidance
1

I am following this project which got me really interesting.. but the part of calibration i got stuck in it
http://openenergymonitor.org/emon/node/58#comment-1806
to calibrate the power factor and the voltage and current, so the program gives results close to reality..
I did find the current being drawn by an ac clamp meter for a heater and a refrigerator, than i checked their generator and found the power and the voltage from the data sheets
by using theory equations i was able to find the power factor for both and i know the current and voltage also.. but still stuck on how im going to arrange the program lines
:double VCAL = 1.0;
double ICAL = 1.0;
double PHASECAL = 1.0;

and if anyone can explain to me also this line please

double lastFilteredV, lastFilteredI, filteredV, filteredI;
double filterTemp;

thanks a lot :slight_smile:

2

Energy conservation and the sustainable use of the earth's resources is the issue of the day. Every business organisation - including heavy manufacturing sectors and service industries - must actively participate in saving the environment and conserving our non-renewable energy sources.An energy monitor is a device that gives its user immediate feedback on electrical and other energy usage. Some home energy monitors estimate the amount of greenhouse gas discharged and also the cost of energy being consumed.

3

nestafred:
still stuck on how im going to arrange the program lines
:double VCAL = 1.0;
double ICAL = 1.0;
double PHASECAL = 1.0;

Don't know what 'arranging' you have in mind but the compiler doesn't care how you arrange them. It will care about that extra ':' though - I suggest you get rid of that.

nestafred:
and if anyone can explain to me also this line please

double lastFilteredV, lastFilteredI, filteredV, filteredI;
double filterTemp;

The first line is declaring four uninitialised variables of type double. The second line is declaring one uninitialised variable of type double.