TLSD Mobile Laser Scan System

Tlsd mobile laser scan system is designed for railway tunnel inspection and digital twin. Outcomes include tunnel structural deformation, defect inspection, clearance measurement, BIM/Mesh model, facility survey, etc. The system can be mounted on railway vehicle, enabling you to gather lidar data and HD images in one way efficiently.

1. Advantages

2. Tunnel Structural Deformation

     (1) Lidar intensity/depth image

     (2) Circlular convergence and segment dislocation

     (3) Clearance

     (4) Multi-period changes

     (5) CAD drawing,excel sheet,thematic image,etc

3. Defect Inspection

      (1) Image resolution up to  0.2mm/pixel

      (2) Tunnel defects, facilities and changes inspection

      (3) Multi-view analysis: lidar image, map, HO image, GPR image,cross-section drawing

4. Clearance Gauge

      (1) Cross-section CAD drawing & Excel report

      (2) User-defined vehicle, profile, gauge, .dxf template

      (3) Clearance gauge report

5. Al lmage Recognition

(1) Utilizing data classification method and AI recognition algorithm

(2) Metro Shield Tunnel Feature Recognition

(3) Recognition rate(≥90%)

6. Change Detection

     (1) Multi-period comparison based on coordinate and laser intensity

     (2) High light and vectorization of water leakage, cable displacement and facility changes

     (3) 25px×25px identifiable at 1.8km/h with Z+F 9012 scanner

7. Digital Twin

     1) Roaming Video

         (1) MultiView Rendering Video(Perspective/Front/Otho,etc)

      (2) Data integration: deformation, clearance, defects and facilities etc

     (2) Feature & Model

         (1) Interactive and Al-aided feature extraction 

         (2) Revit model: tunnel, track, catenary, evacuation route, communication device box, fire pipeline, etc.

         (3) OsGB model, etc.

8. Requirements