The need of monitoring submerged structures in marine environments has been prompting the development of reliable underwater communications.
AURA is an innovative technology for operating an underwater antenna in order to improve wireless communications, especially in dynamic environments. Using a patented, automatic and frequency-tuneable technology, AURA is able to adjust its directional radiation pattern to optimise the radio signal coupling with other devices such as autonomous underwater vehicles (AUVs) or underwater sensors.
Challenge | Opportunity
Underwater wireless communications are currently based in acoustic, optical or radio frequency (RF) technologies. While acoustic systems have poor performance in shallow water, optical systems are very susceptible to turbidity and fouling particles, and they require line-of-sight and thus precise alignment.
RF systems have several advantages over acoustic and optical systems such as turbidity and acoustic noise immunity, non-line-of-sight operations, and high bandwidths (up to 100 Mbit/s) at a very close range. However, the radiation pattern of RF systems may be highly affected by the environmental conditions, namely salinity, thus jeopardising communications and data rate.
Developed at INESC TEC, AURA tackles this limitation of the RF systems by automatically adjusting the resonant frequency of the antenna, considering surrounding salinity and the position of the receiver device.
- Higher data rate;
- Improved operational flexibility in both fresh and seawater.
- Search and rescue
- Deep sea oil exploration
- Deep sea mining and extraction (e.g. organic and bio compounds)
- Energy production
Development StageLab prototype (TRL 3-4)
Further Information<p>US16/329,546</p> <p>EP17772769.0</p> <p><a href="https://worldwide.espacenet.com/publicationDetails/biblio?DB=EPODOC&locale=en_EP&FT=E&CC=AU&NR=2017319594&KC=A1" target="_blank">AU2017319594</a></p> <p><a href="https://worldwide.espacenet.com/publicationDetails/biblio?CC=CA&NR=3033933A1&KC=A1&FT=D&ND=1&date=20180308&DB=EPODOC&locale=en_EP" target="_blank">CA3033933A1</a></p> <p>JP100177426</p> <p> </p> <p> </p>
IPR StatusPatent Pending
Industrial CategoriesInformation and Communication
TagsUnderwater communication, Antenna, Maritime networks, Rescue, Internet of things