Time-Slotted LoRaWAN Implementation of GPS Tracker System for Post-Disaster Utilization

Post-disaster evacuees who will leave the shelter need to be equipped with a Wearable GPS Tracker device for tracking them. This leads to the communication system requirements between the Wearable GPS Tracker devices used by evacuees and the Server at the shelter. Two-way communication with wide area networks is needed. In this paper, a GPS Tracker system is designed. The designed GPS Tracker system implement the Time-Slotted LoRaWAN method to be able to carry out two-way communication between the Wearable GPS Tracker device and the Server at the shelter. The system able to carry out two-way communication. The server receives the GPS location data from node, and the node receive acknowledgement from server. The server display actual and historical location data of node. The node display the actual location of node. The maximum power consumed by the node is 1.05 Watt. With the 3400 mAh battery can supply the node for 21 hours 27 minutes. The proposed system can become the basis of communication tools, specifically tracking people in postdisaster situations.