This time, the customer's request was to retrieve information from weather stations measuring air and noise pollution levels several hundred metres or even several kilometres apart.
BLE Mesh, which was perfectly suited to managing a network spaced a few dozen metres apart, is not suitable in this case, given the distance between the weather stations. The long-range technology, LoRa, allows the distance between the stations to be determined, but not their network layout...
éolane's R&D engineers therefore used a proprietary 868MHz protocol (or 915MHz depending on the country) to meet the customer's requirements and enable data to be collected from the stations over several tens of kilometres.
Read the Bluetooth Mesh article on updating connected objects.
(https://www.eolane.com/en/eolane-innovates-connected-objects-updating)