Hello, i was encouraged by a friend to post about my smart meter, so maybe somebody finds this useful, too.
i´m using rrdtool for monitoring energy usage, by combining a so called "currentcost envi" with an embedded linux routerboard (mips based board from omnima.co.uk, design is from older edimax/sweex router) You may have a look at : http://umweltsuende.wordpress.com/2010/09/16/klein-aber-fein/ The solution is built around rrdtool, which is the essential building-block. What´s special about this solution is that it`s easy, it`s cheap, it`s only 140 lines of scripting code and it may be a good example or starting point for everybody who want`s to do long-term data logging with rrdtool. it basically consists of three scripts: create-rrd.sh for creating the rrd, fetchdata.pl to get data from the energy monitor device and stick that into the rrd and makegraphs.sh for creating the graphs. sorry, that this solution is presented in german language for now, maybe i create an english version later on. feel free to ask if you have any questions, i can translate the most essential parts on request. And thanks for creating rrdtool and making it available for free, especially to tobi oetiker regards roland ps: i got some of the concepts/ideas/code-snippets from similar solutions on the net. Will add references for that later on, too. ___________________________________________________________ GRATIS: Spider-Man 1-3 sowie 300 weitere Videos! Jetzt kostenlose Movie-FLAT freischalten! http://movieflat.web.de _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
