Collecting time series data from sensor?

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1

Hello,

Pls allow a newbie question regarding using e.g. Fibaro Motion Controller (with temperature sensor) for data logging…

Once installed the device measures temperature and luminosity etc. However, to all that I understand, it does not send it anywhere; i.e.no z-wave network communications occur, right?

I’m tempted to use e.g. that temperature data somewhere. It would be cool to get it once an hour, for example, and store it as a time series somewhere.

Now, what would this imply e.g. to battery consumption? Is it even possible?

Thanks!

2

Z-Wave communications certainly occur, because that’s how Vera reads the data. However, there are several plugin apps which would allow you to record (and possibly plot) time series data.

[ul][li][tt]dataMine[/tt] - widely used, but no more under development.[/li]
[li][tt]EventWatcher[/tt] - would allow you to capture data to a log file.[/li]
[li][tt]DataYours[/tt] - still undergoing beta testing, intended as something of a replacement for [tt]dataMine[/tt][/li][/ul]

Perhaps others, but these come to mind at the moment.

3

Thanks! Need to dig deeper into those!

What do we know about this communications? What is its frequency, for example? Configurable? I seriously doubt that it would be real-time (battery drain). What is its implication onto the battery life?

4

Just as an example, here is a [tt]DataYours[/tt] plot of three temperature sensors (one with only 1 degree resolution) for the last month in an outbuilding of mine. I’m currently recording 75 channels of data at various rates in this way.

5

This is exactly what I had in my mind! Thanks for sharing.

I see that the blue plot has a different rate (frequency) than the others. I assume that is configurable somehow, right?

Is the question regarding the relation between the battery life and the frequency irrelevant? ???

6

All these things are configurable. If you search the forum you will find many discussions of different devices and the effect of configuration on battery lifetime.

Battery levels are another thing I record in the same way. An example of the last three month’s worth of battery levels attached (you’ll see that I’ve had a dramatic failure of one recently.)