Seatooth is a radio frequency technology that enables wireless subsea communications over short to medium ranges without being affected by water conditions. It can transmit through water, air, and steel barriers. Seatooth devices have exceptionally long battery lives of up to 30 years and have applications in subsea monitoring, automation, and defense including covert smart sensor networks, long range control of subsea assets, and secure communications between divers, autonomous underwater vehicles, and sensors.

1. Seatooth®
Covert
Subsea Wireless
Communications

2. Seatooth®
• Radio Frequency Subsea
• Short to medium range
• Not affected by turbidity, noise or biofouling
• Transmit through water, air, water/air boundary,
seabed, steel
• Up to 30-year battery life

3. •WFS Overview
•Seatooth® Technology
•Commercial Operations
•Defence Applications

4. vv
Founded in Edinburgh in 2003,
WFS is the innovator in wireless subsea automation,
enabled by Seatooth® technology…
7000+ Seatooth
devices delivered
v
350+ Patent
Applications
250+ Man Years
Research
vv
Up to 30 Years
Battery Life
v
20+
Technologists
Edge
Computing

5. Key Markets

6. Any Industry
Standard Sensor
Subsea
Housing
Endure
Battery
Pack
Subsea
Comms
=
Edge
Computing

7. <400μW
Ultra Low Power Mode
Duty Cycle:
Sensors wake to take
readings
Edge Processing:
Process then transmit
LOG
Edge Logging:
Reduce network load
!
Transmit by
Exception
Exceptional Battery Life

8. Subsea IoT Enables…
Make decisions
based on real-time,
trended data.
Set the ‘amber’ and
‘red’ parameters for
each reading on
each asset… and
receive warnings as
soon as they are
reached.
Provide as-
required access to
third parties for
analysis,
engineering and
audit purposes.
Would this enable..?
 Avoidance of
unnecessary IRM
campaigns
 Focus IRM campaigns
on the most urgent
areas
 Reduction of
number personnel
offshore
 Efficiently allocate
maintenance budget,
while improving
performance
 Prediction of
failures

9. Subsea IoT: Seatooth® SIoT Devices
Seatooth® SeaHub
Suitable for splash zone. Topside
or subsea installation.
Seatooth® SmartClamps:
Fatigue monitoring for braces, risers, flow lines, tie rods

10. NORTHERN SHELF
Wireless Video
DRDC
CP Monitoring
SANTOS BASIN
Fatigue Monitoring
SHAH DENIZ
Pre-Commissioning
Automation
MALAMPAYA
Remote Monitoring
ENI ZOHR
Wireless Video
JAMSTEC
Flow Monitoring
NORTH SEA ASSETS
Flowline Buckling
Upheaval Monitoring
CLAIR RIDGE
Fatigue monitoring
SELLAFIELD
Wireless Power
and Signal
YINKA FOLAWIYO
Retrofit XT Sensors

11. Defence Applications
• Long range one-way subsea control
• Persistent, covert smart sensor networks
• Secure AUV to AUV comms
• Secure Diver Comms

12. Long Range – One Way Control
• US DoD Project
• Demonstrate RF receive at long range
• LF signal to SCM & AUV
• Control of AUV to change position
• AUV moves adjacent to SCM
• SCM & AUV exchange data
• Long range control of AUV/subsea
sensors
• Wake-up or initiation of remote
device

13. Wide Area Networks
• Low power/long duration sensors
• Enabled to monitor variety of
parameters
• Data stored/processed locally
• Hybrid Seatooth enables ‘daisy
chain’ transmission of data
• AUV/Drone exfiltration of data
• AUV acts as subsea USB

14. Wide Area Networks
• Low power/long duration sensors
• Enabled to monitor variety of
parameters
• Data stored/processed locally
• Hybrid Seatooth enables ‘daisy
chain’ transmission of data
• AUV/Drone exfiltration of data
• AUV acts as subsea USB

15. AUV Communication – Short range
• Seatooth Device integrated into Riptide AUV
• Flight path programmed to hover beside WFS
Pipelogger
• Data successfully extracted
• Low power/passive sensor – can remain
inactive over a long period of time
• Transmit data when triggered by AUV
• Fully automated data extraction
• Low power/long battery life
• S/M to AUV – Diver to AUV comms potential
• Subsea Computing Networks
• Shell Gamechanger project 2019/2020

16. Diver Communication & Control
Seatooth® Wireless Communication & Control System (SWiCOM)
• Hand held tablet
• Secure & resilient
• Bi-directional comms
up to 9m
• Through water &
water/air boundary
• Diver Personal Area
Network (wPAN)
• Text-to-text
• Voice-to-text
• Control of additional
equipment
• Diver Health
Monitoring
• In-ear temperature
• Can include fins/HR
• Diver fatigue
monitoring
• Data Exfiltration
• Wireless data
extraction

17. Diver Communication & Control
Seatooth® Wireless Communication & Control System (SWiCOM)

18. Summary
• Long range one-way subsea control
• Persistent, covert smart sensor networks
• Secure AUV to AUV comms
• Secure Diver Comms