For indoor positioning only, combine the Bluetooth Beacon and BLE probe. The BLE probe is placed in a fixed and known position where it will scan the nearby Bluetooth  Beacon and send its MAC address, RSSI and raw data to the server. The Bluetooth  Beacon position can be acquired using the Pythagoras theorem when the three BLE probes receive the same MAC address at the same time.

For both indoor and outdoor positioning, combine the LoRaWAN-Based GPS tracker and BLE probe. The LoRaWAN-Based GPS Tracker supports both BLE and GPS locations. The GPS positioning can be used for outdoor situations. With indoor situations, the LoRaWAN-Based GPS Tracker can serve as a BLE beacon that can be scanned by the nearby BLE probe, which will send the information to the LoRaWAN Gateway server. The LoRaWAN-Based GPS Tracker position can be acquired using the Pythagoras Theorem when the three BLE probes receive the same MAC address at the same time.