Libelium Waspmote Smart Parking v2, Technical Manual

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Network architecture
2.1. Smart Parking node
The Smart Parking node is the device installed in each parking slot. When the device detects a change of the parking
slot status (free/occupied), it sends a frame to the LoRaWAN base station.
Figure : Smart Parking node
2.2. LoRaWAN base station
The LoRaWAN base station (also known as gateway) must be installed in the surrounding area next to the parking
nodes.
I t receives data and forwards it to the LoRaWAN Network Server.
Libelium distributes base stations for LoRaWAN networks. All of them have LoRaWAN connection; some feature
Ethernet, WiFi or 4G connectivity too. Some base stations are ready to work outdoors (
I P67 grade). Some of them
come pre-con fi gured for certain LoRaWAN network servers (see next section). Also, some of them integrate an
embedded LoRaWAN Network Server.
Figure : LoRaWAN base station
2.3. LoRaWAN Network Server
The nodes registration must be done in the Network Server in order to receive LoRaWAN data from all nodes in
the network. Each node must be registered with an identi
fi er and some encryption keys so the Network Server can
receive and decrypt the packets successfully.
The LoRaWAN Network Server purpose is to translate data from the LoRaWAN wireless network to an I P network.
Therefore, when Smart Parking nodes packets are received, a callback is performed in order to send data to the
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