LoRaWAN (Long Range Wide Area Network)

Viskubrunnurinn fallar um LoRaWAN og hvernig sú samskiptatækni gagnst fyrirtækjum og almenningi. Vista hefur nú þegar sett upp LoRaWan samskiptakerfi sem er notað til að stýra götulömpum með góðum árangri. Rétt er samt að skoða aðeins betur hvað LoRaWAN er og hvernig það getur nýst á hagnýtan máta.

What is LoRaWAN?

LoRaWAN is a low-power transmitting data network designed for wireless and fast data transfer. LoRaWAN networks are especially well-suited to transmitting small amounts of data. Two-way data connectivity, functionality, organizational structures, and ease of deployment are among their main features. LoRaWAN is a point-to-multipoint networking protocol based on the LoRa modulation scheme developed by Sem-tech. It’s built to let low-power devices connected with Internet-connected apps over long-range communication links. LoRaWAN-based IoT solutions are both cost-effective and long-lasting. Sensors for the collection of data are small and simple to install, and they don’t need any cables. Sensor batteries will last up to ten years, making the solutions virtually maintenance-free. In most cases, data is sent from the terminal computer (sensor) to the network. Messages are usually transmitted 15 times every 60 minutes. It’s not just about the radio waves; it’s about how they interact with LoRaWAN gateways to perform functions like authentication and recognition. There’s also a cloud aspect to which several gateways can link. The second and third layers of the OSI model can be converted to LoRaWAN. The LoRa Alliance defines the LoRaWAN protocols, which are documented in the LoRaWAN Specification, which can be downloaded from the LoRa Alliance website. Radio protocols like LoRaWAN are straightforward at their most basic level. LoRaWAN networks can be constructed with a local emphasis to cover a particular region or house, or they can be built to cover the entire country.

LoRaWAN network architecture

The star-of-stars framework is frequently used in LoRaWAN network architecture. This data transmission bridge connects the sensors, which are also known as terminal equipment, to the centralized network servers. LoRaWAN sensors send data to one or more gateways via wireless single-hop transmission, which are then linked to network servers via standard IP connectivity. Since LoRaWAN terminal devices do not use the IP protocol, they are connected to a network that is completely different from the internet. Three classes of LoRaWAN are active at the same time.