Tunnel Scan
Tunnel Scan
Comprehensive Diagnostics for Tunnel Infrastructure
Tunnel Scan
Tunnel Scan is a comprehensive solution for monitoring railway tunnels, metro systems, bridge underpasses, underground passages and galleries. It is ideal for routine inspections, maintenance planning, dimensional analysis, or post-event structural assessments.
The Tunnel Scan (TS) system by ADTS sets a new standard in tunnel inspection, providing high-resolution imaging and 3D profiling in a single acquisition pass.
ADTS Tunnel Scan captures tunnel walls at 1 mm resolution, both longitudinally and transversally, while operating at speeds up to 60 km/h. The entire structure is digitized in one pass, ensuring fast, accurate and complete data acquisition.
Performances
| Max Speed | Up to 60 km/h |
| Sampling Step Resolution | 1 mm |
| Led Light Power | 1600 W |
| Max Target Distance | 9 m |
How it works
Tunnel Scan combines lighting, imaging and laser scanning to acquire a full digital representation of the tunnel environment. High-power LEDs illuminate the tunnel interior, allowing line-scan cameras to capture fine surface details while a phase-based laser scanner simultaneously maps the 3D geometry. This synchronized process delivers a seamless, high-fidelity scan of the tunnel in real time.
Devices
- Illuminators: High-power LED lighting system arranged in a radial layout; the combination of multiple units ensures uniform illumination.
- Camera Box: High-resolution imaging unit with radially mounted line-scan cameras.
- Profiler: Phase-based laser scanner with 360° field of view and helicoidal scan pattern; provides high-speed, high-precision 3D profiling.
Advanced Functions
Thermal Inspection
Captures temperature variations along tunnel walls to detect anomalies such as leaks or insulation issues.
Video Camera
Enables visual documentation of the inspected route, aligned with profile and image data.
AI Powered Defects Detection
By combining high-speed linear cameras, laser scanners and AI diagnostics, the system automatically detects and classifies:
- Cracks
- Aggregate exposure
- Pop-outs
- Water leakage and wet surfaces
- Joint percolations
- Thermal anomalies via the Thermal Inspection System (TIS)
Applications
Compatible with both rail-bound and road-rail vehicles, offering flexible deployment across different inspection platforms.
- Railway tunnels
- Metro systems
- Bridge underpasses
- Underground passages and galleries
Tunnel Scan has been adopted by:
Our Projects
Railway Inspection System for Metro Taipei
Rail Measurement System for Grinding Machine
Clearance and Video Inspection System
Downloads
- Tunnel Scan – Brochure PDF