High accuracy measuring device QY-MT

Overview
QY-MT is a non-destructive, AI-assisted underwater measurement system by QYSEA designed for ROV-based inspections. It provides real-time AR measurement, multidimensional data visualization and automated reporting to support inspection and survey workflows for underwater structures such as ship hulls, bridges and pipelines.

Key features

• AI adaptive measurement: uses 4K+ imaging and AI for target recognition and post-processing to detect voids, peeling and corrosion.
• AR ruler: real-time virtual ruler with centimeter-level precision and switchable units (cm/ft).
• AI Vision Lock: stabilizes and maintains target lock in presence of currents to improve measurement repeatability.
• Linear & angle measurement: instant length, height and angle readings with unit switching.
• Curve & arc measurement: intelligent drawing and measurement of curved shapes in a plane.
• Area & perimeter measurement: supports rectangular, polygonal and adaptive shape calculations.
• Automated measurement reports: quick export of mission-based measurement reports for decision support.
• Non-destructive workflow suitable for field and operational environments.

Measurement capabilities and examples

• Target measurable size range: approximately 5 cm to 120 cm.
• Operational distance range: typically 30 cm to 200 cm.
• Lab example: length 14.20 cm, height 3.74 cm, perimeter 32.38 cm, area 40.26 cm².
• Controlled environment examples: actual distance 15 cm measured 15.04 cm (error 0.3%); actual distance 46 cm measured 46.18 cm (error 0.4%).
• Lab accuracy: up to 99.7% reported in controlled tests; practical operations (30–200 cm) report maximum error < 2%; example at 62 cm ±0.3%.

Application scenarios

• Confined-space inspections
• Water tank and ballast inspections
• Pipeline and outfall inspections
• Ship hull and marine asset inspections

Compatibility & system support

• Supported ROV models: FIFISH W6, E-GO (with laser ruler), E-Master, V6 Plus and additional FIFISH models.
• Compatible tools and modules: U-INS underwater positioning, 2D imaging sonar, Q-DVL sonar module, compass ruler, AR ruler and related measurement accessories.
• Platform support: PC (Windows 10+, 64-bit). Offline measurement mode supported for field use without internet.

Additional functional highlights

• Multidimensional data visualization and one-click calculations for mission data.
• Automated report generation to streamline post-mission analysis.
• Support for linear, angular, curve/arc, rectangular, polygonal and adaptive shape measurements.

Technical specifications

• Product name: QY-MT
• Manufacturer / brand: QYSEA
• Product type: AI-assisted underwater measurement software (non-destructive)
• Measurement target size range: ~5 cm to 120 cm
• Operational measurement distance: ~30 cm to 200 cm
• Accuracy: lab test example at 62 cm shows ±0.3% error; practical applications within 30–200 cm show maximum error < 2%
• Lab reported accuracy: up to 99.7% in controlled conditions
• Units supported: centimeters and feet (switchable)
• Supported platforms: PC (Windows 10+, 64-bit)
• Supported ROVs: FIFISH W6, E-GO (with laser ruler), E-Master, V6 Plus, and others
• Compatible modules/tools: U-INS, 2D imaging sonar, Q-DVL module, compass ruler, AR ruler and related accessories
• Output: automated measurement reports (quick export based on mission data)