Soteria Dolphin
Tether-free Sonar-fusion Underwater Inspection Robot
Autonomous inspection beyond 1 mile — no tethers, no divers, no blind spots. Dolphin sees through turbid water with 3-Way Sonar Fusion and delivers decision-ready insight through an NVIDIA Omniverse Digital Twin.
Critical infrastructure is failing where no one can see.
Underwater inspection still depends on divers and tethered, camera-based ROVs. Optical sensing goes blind in turbid water; tethers cap range near 700 ft. Cracks, seawater intrusion, and H2S corrosion stay hidden until sinkholes and service failures occur.
Built for water where cameras fail.
3-Way Sonar Fusion
Mechanical scanning, multibeam, and side-scan sonar fused into one perception layer. Turbidity is our default operating condition, not a failure case.
Tether-free Autonomy, 1 Mile+
USBL, DVL, IMU, and pressure-sensor navigation with all inference on-device via NVIDIA Jetson AGX Thor. 5x the reach of tethered ROVs, zero cloud dependency.
Omniverse Digital Twin
H2S, salinity, thermal, and turbidity risk rendered as heat maps over a 3D reconstruction. Hours of specialist post-processing become on-site, glanceable insight.
The platform
A sealed, 8-thruster autonomous vehicle designed to IP68, carrying the full sonar-fusion perception stack and onboard H2S, salinity, temperature, and turbidity sensing — engineered to operate for miles where cameras, tethers, and divers cannot.
One edge module. Four isolated workloads. Deterministic autonomy.
Using Multi-Instance GPU partitioning on Jetson AGX Thor, sonar fusion (<10 ms), SLAM, BIM registration, and Digital-Twin sync run in parallel on isolated GPU instances — deterministic real-time behavior in communication-denied water. Every mission feeds a cumulative defect database, shifting maintenance from post-failure to preventive. The edge architecture supports coordinated multi-unit operation across entire conduit networks.
Coordinated multi-unit operation
Multiple Dolphins sweep a conduit network in relay — each unit mapping its segment, together covering entire systems in a single mobilization.
From raw sonar to decisions in one glance.
A field manager doesn't interpret acoustic returns — the tablet dashboard locates and prioritizes anomalies by position and severity. Delivered on iOS, Android, and desktop.
Where Dolphin goes to work.
Municipal water & wastewater
800,000+ miles of U.S. sewers graded D+. Routine autonomous patrols replace hazardous, infrequent diver entries.
Hyperscale data centers
Large-diameter cooling pipe inspection without shutdown or dewatering.
National energy & desalination operators
Subsea intake and conduit inspection at kilometer scale.
Deep-tech from Seoul, proven in the field.
Soteria8 is a Korean deep-tech company with a Tokyo subsidiary. Our platform lineage includes commissioned R&D with Hamamatsu City and municipal PoC programs in Shizuoka Prefecture using amphibious research prototypes — groundwork now culminating in Soteria Dolphin.
See Dolphin in your water.
Tell us about your assets — conduits, intakes, cooling loops — and we'll set up a demonstration.
(東京都港区虎ノ門１丁目１７−１ 虎ノ門ヒルズ ビジネスタワー15F)