I'm storing a range of data....
Power, voltage, powerfactor, temperature and strings.
The first 4 are in the db so I have a long history of collected data. That way I can go back and see if I am reducing my energy usage or not.
The strings are just for giggles. It will be fun to go back over in the years to come to see what messages have been floating around.
I plan to graph the numbers. I dont work well with just a bunch of numbers scrolling up my monitor. Graphs on the other hand... They make trends a lot simpler to read.
To this end I am working on a universal bit of PHP that will take a database name/table/row and duration and just produce a graph. Nothing fancy, but simple and hopefully robust.
Great question. Looking forward to seeing some answers.