A long-range low-power wireless sensor network based on U-LoRa technology for tactical troops tracking systems

this paper presents the deployment of a LoRaWAN implemented by Thai people called Universal and Ubiquitous (U-LoRa) for an application of Internet-of-Things in tactical troop tracking systems. The proposed long-range communication system comprises only the implemented gateway using Raspberry-Pi but also an end-device using microcontroller with GPS and other sensors for geological and physical tracking. The proposed system employs four gateways with bridge-to-bridge WIFI connection for communication to the server. The end node can be integrated more than ten types of sensors such as GPS, temperature, humidity, and water sensors. All data can be visualized real-time via monitor station. The proposed system provides not only an emerging long-range communication but also low-power operation in a military campsite within 0.5 kilometers using a transmission power of 4dBi.