Daily 3D BIM Compliance Mapping and Progress Report
Scenario record: it defines the environment, the mission flow and a proposed hardware and software configuration. The list below is a configuration proposal, not an installation inventory. Field projects lists deployed systems and their measurements.
- Environment
- Outdoor field
- Operating mode
- Supervised autonomy
- Proposed robot
- Unitree A2
The problem addressed
Faulty constructions being buried as building progresses and massive demolition-reconstruction (rework) cost when discovered.
Draft mission flow
- 1The robot autonomously traverses construction site floors each night, generating current 3D point cloud map with 360° LiDAR.
- 2Current point cloud automatically overlaid with BIM project to detect column deviations, wall position errors, and slab thickness differences with millimetric precision.
- 3Absolute coordinates of each deviation point determined with RTK-GPS; error report prioritized by risk level generated.
- 4Daily progress percentage and deviation map transmitted to Procore/Revit; automatic notification sent to project managers.
Proposed hardware
- 360° Spherical 3D LiDAR
- RGB Depth Camera
- RTK-GPS
- High Precision IMU
Proposed software
- Navigation
- Terrain SLAM overcoming debris/rubble between construction site floors and ramps
- Model
- Point Cloud vs BIM Model Automatic Overlay and Tolerance Deviation Detection
- Integration
- Autodesk Revit / Procore API and Construction Site Management Platform
The robot's real operating limits
Unitree A2
Industrial Class Legged Robot
Product page- Ingress rating
- IP56-IP67
- Runtime
- >5 hours (No load) / >3 hours (25kg Load)
- Operating temperature
- -20°C to 55°C
- Payload
- 100 kg
- Max speed
- 5 m/s
- Climb
- 45°
Values are manufacturer data. Scenario fit is determined by comparing these limits with site conditions.
From scenario to installation
Feasibility is determined by the site survey: floor and route, network coverage, the charging point, intervention responsibilities and the conditions under which the robot must stop. The survey report defines the scope, the constraints and the commissioning steps.