en English is Íslenska

Thesis (Master's)

Reykjavík University > Tæknisvið / School of Technology > MEd/MPM/MSc Verkfræðideild (áður Tækni- og verkfræðideild) og íþróttafræðideild -2019 / Department of Engineering (was Dep. of Science and Engineering) >

Please use this identifier to cite or link to this item: http://hdl.handle.net/1946/44871

  • Title is in Icelandic A design of a communication relay for Teledyne Gavias AUVs
  • Master's
  • Only 5% of the ocean floor has been explored and Teledyne Gavia has developed several Autonomous Underwater Vehicles (AUVs) for various purposes, including scientific oceanography. However, communication with these AUVs presents challenges due to the properties of water, air, and the water surface. Radio frequency (RF) signals quickly attenuate in water, and acoustic waves tend to reflect off the water surface.
    To overcome these communication challenges, operators usually must remain on the water to ensure the acoustic modem stays within range of an AUV, as acoustic waves are traditionally used for underwater communication. The acoustic modem connects to a receiving device called the deck box, which, in turn, interfaces with the operator's laptop via USB or Bluetooth.
    Axiomatic Design was used to design a telecommunication relay that bridges the gap between acoustic and RF signals. This design allows operators to operate from shore while the buoy and AUV continue their work at sea. Moreover, it eliminates the need for a deck box, enabling additional functionalities to be incorporated into the receiving device. This aligns with Teledyne's commitment to modularity, as the new design opens up possibilities that were not feasible with the deck box approach.
    The system design includes a GNSS receiver, which provides precise position information for the entire system. It is compact, lightweight, and modular, allowing for easy attachment to a buoy at sea or potentially an Autonomous Surface Vehicle (ASV). To transmit data to the operator, the system utilizes LoRa technology, offering reliable long-range communication or a backup Iridium satellite connection, which has a \qty{100}{\percent} Earth coverage. Additionally, the system boasts an impressive battery life of up to 40 days, ensuring extended operation in remote marine environments.

  • Jun 8, 2023
  • http://hdl.handle.net/1946/44871

Files in This Item:
Filename Size VisibilityDescriptionFormat 
Communication_relay_with_Gavia.pdf8.75 MBOpenComplete TextPDFView/Open