Sledenje predmetom z moduli LoRa

OBERSTAR, ŽAN (author), Bulić, Patricio (mentor)

Predstavili bomo poskus izdelave sistema za sledenje objektov z uporabo modula LoRa SX1280. Ta temelji na štirih enotah: treh oddajnikih in enem sprejemniku. S poznavanjem razdalj med sprejemnikom in posameznim oddajnikom ter med seboj relativnimi lokacijami oddajnikov lahko s pomočjo trilateracije izračunamo lokacijo sprejemnika. Opišemo sestavljanje enot, modifikacijo modulov z dodajanjem zunanje antene in delovanje programske kode našega sistema po komponentah. Nazadnje predstavimo rezultate poskusa našega sistema na dveh terenskih testih. Najprej izvedemo meritev med dvema enotama, torej merimo zgolj razdaljo, nato pa vpeljemo še dve enoti in izvedemo trilateracijo.

• Language: Slovenian
• Keywords: sledenje, LoRa, merjenje razdalje, trilateracija
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FRI - Faculty of Computer and Information Science
• Year: 2023
• PID: 20.500.12556/RUL-150258
• COBISS.SI-ID: 168945667
• Publication date in RUL: 15.09.2023

Secondary language

• Language: English
• Title: Object tracking with LoRa modules

Abstract

In the following text, we present our attempt to develop an object-tracking system based on the LoRa SX1280 module. The foundation of our system are four units: three transmitters and one receiver. With the knowledge of the distance between the receiver and the individual transmitters, as well as the transmitters' relative positions, we can discern the receiver's position using trilateration. We describe the assembly of the units, the process of installing an external antenna onto the LoRa modules and the workings of our system's code by components. Finally, we detail the results obtained from our system during two field tests. The first is a preliminary ranging test with two units, and the second is a full test of the proposed system with trilateration.

• Keywords: tracking, LoRa, ranging, trilateration