earticle

영어

We purposed to develop a floating communication module equipped with LoRa and GPS technologies to enhance underwater drone operations by enabling real-time location tracking and long-range wireless communication. While previous studies focused on underwater communication systems, few have quantitatively analyzed how enclosure materials affect signal performance in real-world marine environments. To address this, we designed a sealed communication system and experimentally evaluated its signal sensitivity and positioning accuracy under open, PLA-sealed, and acrylic-sealed conditions. Through static positioning tests and LoRa signal strength measurements, we found that the acrylic enclosure maintained reliable performance, with only a 21.1% increase in GPS error and a 16.7% reduction in communication range compared to the open state. In contrast, the PLA case showed significant signal degradation. These results demonstrate that case materials directly impact the communication quality of underwater systems and confirm the acrylic case as a practical option for marine deployment. We contribute to the development of modular and efficient AUV communication systems by experimentally verifying enclosure-dependent signal performance and proposing a deployable design suitable for real ocean environments.