Indoor navigation: wiki Technical terms explained

Indoor Positioning via LoRaWAN

LoRaWAN is a low power radio system for wireless data transmission over long distances.

The Long Range Wide Area Network (LoRaWAN) is a low power radio system designed for IoT devices. It is characterized by a high reception range between the transmitter and receiver of approximately 2.5 kilometers in the inner-city area. Furthermore, short, bi-directional communication thrusts are characteristic for LoRaWAN. It reaches a battery life of 1 to 15 years, depending on the application.

The LoRa network operates in the 868 MHz frequency band. Depending on the amount of data, transmission is only possible with higher latencies (approx. 30 seconds to 5 minutes), which makes the technology unsuitable for live tracking systems. LoRaWAN is used when status information does not have to be captured, queried and exchanged in real time. Sensors (e. g. a LoRa tag), located at any place, can be used to gather information that can be easily transferred to the backend.

Indoor positioning using LoRa/BLE tags and beacons

LoRaWAN can be used for indoor positioning in the form of LoRa/BLE tags and BLE beacons, for example. LoRa tags can send and receive signals. Beacons are small transmitters that can only send simple signals to devices in the vicinity. Typically, the beacons are placed inside the building and are detected by the LoRa/BLE tags attached to the assets. The scanned data is then transmitted via LoRa to a special gateway. From there, the data is transferred to the backend. The use of LoRa/BLE tags in combination with beacons is suitable for all application scenarios in which only a few objects are to be tracked on large areas and indoor navigation might be an interesting additional feature.

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