Underwater Robot · It's Diagnosis

URI-D “NADIA”

An autonomous robot for marine-structure diagnosis. It inspects, maps and builds 3D models on its own.

ROV / AUV HybridOnboard AISurvey-grade navigationAutonomous inspection
URI-D NADIA inspection ROV
Overview

A purpose-built inspector for marine-structure safety

Built for 3-D mapping and defect inspection of quay walls, hulls, pipelines and dams — as a tethered ROV or battery-powered AUV.

Onboard AI

Recognises and inspects on the robot, in real time.

Precise navigation

Clean, well-aligned data for accurate 3-D reconstruction.

Survey-grade accuracy

Positioning far beyond a typical observation ROV.

Final Specification

Technical profile

Operation typeROV & AUV hybrid
Operating depth100 m
Operating time (AUV)Standard 2 h @ ~1 kn · Extreme 1 h @ ~3 kn
Platform size0.88 (L) × 1.2 (W) × 0.42 (H) m
Platform weight70 kg
Composite nav accuracy< 0.5% of range
Position accuracy0.2 m
Attitude accuracy≤ 15°
ThrustersSix, vector configuration (holonomic)
Onboard computeGPU AI compute + dedicated navigation processor
Sensor & Compute Suite

Everything it needs to see, navigate and decide

Navigation

Velocity log, fibre-optic gyro, compass and depth sensing.

Perception

Imaging sonar, low-light camera and lighting for turbid water.

Positioning & Comms

Acoustic USBL, plus GPS, Wi-Fi and RF at the surface.

AI compute

Onboard GPU AI with integrated vehicle control.

How Inspection Works

From survey to 3D model

URI-D flies the structure, captures imagery and sonar, and turns it into a 3-D model with defects mapped on it.

Survey · On the robot

Capture

Camera, sonar and position data, time-aligned.

Detection · On the robot

Real-time detection

AI flags defects live and holds distance and coverage.

Mapping · On the robot

Live mapping

Tracks coverage to fly complete, gap-free lines.

Reconstruction · Topside

3D model

A georeferenced 3-D model with a defect register.

Inspection targets

  • Quay walls, piers & piles — cracking, spalling, rebar exposure and base scour.
  • Ship hulls — biofouling coverage, corrosion, coating breakdown and anode depletion.
  • Pipelines & cables — free-spans, burial/exposure changes and coating damage, logged by chainage.
  • Dams, intakes & tanks — cracking, joint deterioration and confined-space localisation.
URI-D · NADIA

Put autonomous diagnosis in the water.

Ask us about deploying URI-D for your marine-structure assets.

Talk to our engineers