Is it feasible that we could create an ultra low power node that wakes every X hours, sends any information it has, routes for other nodes and goes back to sleep? Every node could be time sync’d from a master exit node that has cellular or sat connectivity to the outside world.
I’m thinking of a use case in pest control where remote trapping stations are checked monthly regardless as to whether they have been set off or not. Nodes would only have a tiny amount of data to send, maybe status, voltage and some environmental data if deemed useful.
Nodes would often be only 100m apart, in dense bush and undulating terrain and form lines many kilometres long. Some nodes could likely “see” 20 nodes ahead, others only one.
Power could be supplied by a solar charged super capacitor with energy harvesting to eke as much out of the sun as possible in shady situations.
I imagine a traditional hub and spoke model is more suited for ultra low power nodes as they only wake on an event but then are limited to each node being able to “see” the hub. If a mesh architecture could be implemented I reckon it would enable a lot of “smart” devices out in the wilderness.
Now if these nodes could also log the RSSI of a “ping” transmitted from radio tagged wildlife and estimate its position…I would be fizzing!