Lochan node had dissapeared from the network once its battery had reached 0% charge.
Looking at the incoming data – which is continuous from the Lochan node – I noticed the temperature flatlining since Nov 25th which shows the box is probably in snow now:
The battery charge – which was beginning to show signs of reduced solar charging (deeper dips) – also shows a sigificant drop. It is possible the solar panel – which is mounted on the ground – has some snow cover.
Today’s summary plot shows we have been successful getting data from the mountain over a period of two years. This is the simple on-board temperature but it shows that the network is ready for deployments with more real-world sensors!
This plot of the state-of-charge for the Lochan node shows that the charging is working very well – with a high average. It will be interesting to see the onset of autumn later.
in summer 2017 we imaged several areas to produce Digital Elevation Models (DEM) to investigate their use in repeat surveys. The 3D Robotics Solo was equiped with a Mapir camera:
Photos from our visit in 2017
On the mountain we could run Ed’s new code to sniff the 6LowPAN radio traffic and plot it – this gave us a much easier way to see what had linked up:
We managed to update the processors so we have more RAM/Flash while keeping the same sensors deployed in 2015. Sebastian’s solar powered lithium battery packs were installed in many nodes too!