QYSEA FIFISH E-MASTER is a revolutionary industrial AI underwater robot, purpose-built for high-precision underwater measurement, inspection, and survey in complex marine environments. Engineered to replace traditional engineering divers and costly large ROVs, the E-MASTER eliminates the high costs, safety risks, depth limitations, and measurement errors of conventional underwater operations — delivering survey-grade accuracy in a compact, modular 6.5 kg platform that a single operator can transport and deploy.
With four integrated high-precision technologies as standard — dual Q-DVL (forward + downward) for 3-knot station lock hovering, U-INS Plus inertial navigation for autonomous subsea path planning, QY-MT smart measurement with 99.7% accuracy, and QY-BT bathymetric survey with echosounder — the FIFISH E-MASTER is purpose-designed for underwater construction & inspection, shipping & maritime, tank & pipeline inspections, and offshore energy operations.
Solving Key Industry Challenges
Traditional underwater measurement relies on engineering divers facing high operational costs, limited daily dive count at depth, safety risks from strong currents and deep water pressure, and measurement errors caused by environmental influences. Traditional large underwater robots are costly to operate and difficult to deploy. The FIFISH E-MASTER eliminates these challenges with a lightweight, AI-powered platform that delivers professional-grade results at a fraction of the cost and risk.
High-Precision Technology #1: Q-DVL — Dynamic & Steady Hovering
The E-MASTER features both forward and downward Q-DVL modules for stable hovering and strong omnidirectional flow resistance of up to 3 knots. Even in turbulent conditions, the E-MASTER remains rock-steady, enabling precise inspection work that would be impossible with conventional ROVs.
- Station Lock Hovering – Locks the ROV’s position underwater and precisely returns to its locked position against current interference
- Smart Collision Avoidance – Automatically prevents collisions with obstacles, ensuring operational safety around complex subsea structures
- Altitude / Distance Lock & Track – Maintains consistent distance from objects and height from the seabed for systematic inspection passes
- Forward Q-DVL: Detection range 0.15–10 m
- Downward Q-DVL: Detection range 0.15–60 m
High-Precision Technology #2: U-INS Plus — Subsea Automatic Navigation
The U-INS Plus system delivers advanced autonomous navigation by utilizing deep learning and sensor data to provide precise position, velocity, heading, and attitude information. Operators benefit from efficient, self-guided movement and detailed location and trajectory display — transforming complex underwater inspections into systematic, repeatable workflows.
- Subsea Mission Planning – Automated surface-adaptive path planning for comprehensive area coverage
- Return-to-Home – Intuitive one-click return from any position, eliminating disorientation risk
- Real-Time Motion Tracking – Visual reference of historical paths with trajectory display on-screen
- Custom Maps – Integrate your own maps for site-specific navigation context
- Custom Points of Interest (POI) – Mark and revisit critical inspection locations
- Multiple View Display – Comprehensive operational awareness during autonomous navigation
High-Precision Technology #3: QY-MT — Real-Time & Offline Smart Measurement
The QY-MT system offers advanced AI-powered underwater measurement capabilities. Utilizing the forward Q-DVL and laser, along with proprietary AI algorithms, operators can analyze and measure underwater objects, fractures, and damage with 99.7% accuracy. The system provides dynamic, adaptive, and precise multi-angled measurements with real-time data visualization and customizable displays for comprehensive, non-destructive assessments.
- Dynamic, Adaptive & Precise – Perform multi-angled/multi-shaped measurements (length, width, area, perimeter, angles) with millimeter accuracy
- Simultaneous & Customizable – Run multiple measurements concurrently with personalized on-screen display
- Augmented Reality Enabled – Customizable real-time virtual AR Ruler overlay for intuitive visual measurement
- Real-Time & Offline Analysis – Measure live during dives, or analyze captured footage post-mission for detailed offline assessment
High-Precision Technology #4: QY-BT — 2D & 3D Seafloor Mapping
The integrated Q-DVL and echosounder on the E-MASTER enable automated, precise underwater data collection. Users can survey seabeds, riverbeds, and reservoirs, create customizable 2D/3D topographic maps, estimate reservoir capacities, and generate data reports with a single click — streamlining the entire mapping workflow from data collection to deliverable output.
- Automated Data Collection – Collect depth data automatically with underwater cruise mode
- Streamlined Mapping Process – Export and upload data with ease for rapid turnaround
- Customizable 2D/3D Maps – Control the appearance and detail level of map outputs
- Reservoir Capacity Estimation – One-click volume calculations for water management applications
- Echosounder: Detection range 0.3–50 m
Powerful Ring-Wing Propulsion
At its core, the FIFISH E-MASTER features an innovative ring-wing motor system, achieving speeds of >3 knots and demonstrating strong resistance in challenging waters. Six high-performance metal wing propellers with expanded blade area deliver a 30% power increase over previous generation while ensuring remarkable reliability, wear resistance, and corrosion protection.
- 6 Propellers (Hard Anodized Aluminum Alloy) – Full 6-DOF: left/right, up/down, forward/backward, 360° yaw, pitch, roll
- Posture Lock: ±0.1° pitch/roll | Depth Lock: ±1 cm
AI-Enhanced Capabilities
- AI Diver Tracking – QYSEA’s proprietary underwater visual recognition identifies divers’ movement poses in real time, achieving precise visual locking and tracking. Serves as a safeguard for divers’ lives with real-time shore-based monitoring of underwater situations
- AI Dehazing Algorithms – Identifies and filters out snowflake effects caused by suspended underwater particles, enhancing image clarity and improving decision-making efficiency
- AI Vision Lock – Single-touch target locking with adaptive autonomous positioning control
Expansive View, Vivid Lighting & Macro Precision
- 1/1.8″ CMOS Sensor, 12MP – 4K UHD 30fps video, JPEG + RAW (DNG) photo
- 176° Above Water / 146° Underwater FOV – Ultra-wide panoramic perspective capturing entire underwater scenes
- 10 cm Macro Focus Range – Extreme close-up underwater focus ensures precise imaging even in murky waters, with automatic focusing for close-range observation
- 10,000 Lumens (2 × 5,000) – Multi-lamp LED system, 5500K, 160° beam, 3 adjustable brightness levels
- Electronic Image Stabilization (EIS) – Stable footage in turbulent conditions
- 128 GB External MicroSD (up to 512 GB) – Detachable for quick data transfer
Fluid Modular Design — Quick & Effortless Maintenance
The E-MASTER’s modular architecture integrates essential components — motor, imaging, lighting, and battery — enabling rapid assembly, disassembly, and precise troubleshooting. Battery and accessory removal is achieved within seconds, while spare part replacement can be completed within 5 minutes, delivering a major boost to operational efficiency for extended field deployments.
Enhanced Multi-Port Expansion
- 2 Built-in Dual Load Interfaces (Top & Bottom) – Expandable to 6 operational tools simultaneously via professional expansion dock (optional)
- 5 kg Payload Capacity – Robust power and dual interfaces support a wide range of professional accessories
- Stainless Steel 316 Ports – 11V–24V @ 5A, Ethernet, UART with adaptive voltage and self-diagnostic leak prevention
Swappable Dual Power System
- Hot-Swappable Dual Battery (69.12 Wh × 2) – Seamless alternating battery replacement without powering down or restarting
- Q-Energy Station (Optional) – Portable smart charging platform; 2 batteries provide 150 minutes standard operation, 90% charge in 50 minutes
- Air Travel Compliant – Both 69.12 Wh batteries meet carry-on luggage regulations
- 1–4 Hours Runtime – Dependent on work environment and current conditions
Tether, Controller & Robotic Arm
- 200 m Tether Cable – 4.6 mm diameter, 120 kgf tensile strength, neutral buoyancy underwater, IP65
- 5 GHz WiFi Controller (802.11a/n/ac) – Up to 4 hours usage, HDMI Box compatible
- Optional Robotic Arm – 10 kgf grip strength, 120 mm opening, 9V–12V, 3A max
Industry Application Scenarios
- Underwater Measurement – High-precision structural assessment of cracks, fractures, coating damage, and dimensional deviations with QY-MT (99.7% accuracy, AR ruler)
- Hydrographic Survey – Automated bathymetric mapping of seabeds, riverbeds, and reservoirs with QY-BT echosounder and one-click 2D/3D map generation
- Shipping & Maritime Inspections – Hull, propeller, and underwater structure assessment with U-INS autonomous navigation and station lock hovering
- Reservoir & Tank Inspection – Volume estimation, structural condition monitoring, and water level management
- Underwater Construction & Infrastructure – Bridge scour, pile foundation, and pipeline integrity inspection with collision avoidance
- Offshore Energy – Platform and subsea equipment assessment with 200 m depth capability and 3-knot current resistance
