[uracoli-devel] did I tell you?

[Vasilakes, Keith]

Axel, Joerg,

Thanks to you and Uricoli, I was able to finish my project AND have it work J

( it was done a couple of months ago actually)

 

We were able to create a network of 130 devices ( every device in house) all talking to a coordinator ( a Digi X4 gateway ) with very little data loss. ( few retries here and there )

We normally run at 30 seconds between messages, but were able to crank it up to 10 seconds before the gateway processor started maxing out it’s bandwith!

The network itself was stable.

 

The code base was so much simpler and smaller than the bit bean Zigbee solution, which fell apart at 40 devices.

This was 40 devices sending a data packet every 30 seconds.

We could get the network up, but as soon as one device lost contact it would start the association process, suck up all the bandwith, and now all the other devices fail so the system crashes like a house of cards.

 

Uricoli never associates and therefore never takes out the network with retries. It just goes to sleep and tries again in 30 seconds.

 

We do actually associate the devices with the gateway, the gateway has a list of sensors, and it listens for them for 3x the reporting rate.

As sensors check in, the gateway marks them as connected

At the end of the ‘Association’ period, the gateway reports to a PC app which and how many sensors reported in. so the PC app can inform the user.

So the sensors just do their thing and the gateway worries about the association list.

 

We did look into writing an association procedure, but decided it wasn’t the best way to do it.

 

All in all awesome, Uricoli was a perfect fit.

 

 

Keith Vasilakes