Non-Contact Monitoring for Tunnel Structural Deformation
Automated Measurement. Real-Time Data Access. Intelligent Deformation Analysis.
Project Overview
Tunnel structural deformation monitoring plays an important role in infrastructure safety management. Changes in displacement, settlement, and structural geometry may indicate variations in tunnel behavior and require timely engineering assessment.
In this project, Hu Entropy Tech’s Online Visual Tracking System provides a non-contact approach to monitoring selected structural points within and around the passage tunnel.
Using advanced optical imaging and image-processing algorithms, the system captures small displacement changes of designated monitoring targets. Measurement data is processed and transmitted through the monitoring network, enabling engineers to review structural movement and deformation trends remotely.
Combined with edge computing, IoT communication, and a cloud-based monitoring platform, the solution supports automated data acquisition, efficient processing, and centralized monitoring management.
Advanced Non-Contact Monitoring Technology
The Online Visual Tracking System uses an oblique-axis Digital Image Correlation (DIC) imaging principle and sub-pixel target positioning algorithms to measure displacement changes without direct physical contact with the monitored structure.
Passive optical targets are installed at selected locations to provide reference points for continuous visual tracking.
The system can support monitoring of:
- Tunnel Displacement: Tracks horizontal and vertical displacement at designated structural locations.
- Tunnel Settlement: Monitors vertical movement at selected points with an appropriate reference arrangement.
- Structural Deformation: Tracks changes in the relative positions of multiple monitoring targets.
- Tunnel Convergence: Evaluates changes in the relative distance between selected points across a tunnel section.
- Lining Movement: Monitors displacement changes at designated tunnel lining locations.
Key System Features
1. Automated Visual Data Acquisition
The system automatically captures images and tracks designated targets, reducing the need for frequent manual measurement and supporting continuous structural observation.
2. Edge Computing and Local Processing
Edge computing enables image processing and measurement calculations closer to the monitoring equipment. This helps reduce unnecessary data transmission and supports efficient monitoring workflows.
3. IoT-Based Data Transmission
Processed monitoring data can be transmitted through compatible communication networks to the centralized monitoring platform for remote access and management.
4. Cloud-Based Monitoring Platform
Engineers can access measurement results, review historical displacement records, visualize deformation trends, and manage configurable alarm thresholds through the cloud platform.
5. Continuous Monitoring and Early Warning
Configurable alarm thresholds help identify displacement changes that exceed predefined limits, providing information for further engineering investigation and response.
6. Multi-Sensor Integration
The system can be integrated with compatible geotechnical sensors and data acquisition equipment to collect complementary information, including strain, stress-related measurements, and other tunnel monitoring parameters.
Monitoring Architecture
Passive Optical Targets → Online Visual Tracking System → Edge Computing & Data Processing → IoT Data Transmission → Cloud Monitoring Platform → Deformation Analysis & Early Warning
Additional sensors and industrial RTUs can be incorporated to support a more comprehensive tunnel monitoring network.
Application Value
The deployment of automated visual deformation monitoring provides several benefits for passage tunnel management:
- Non-Contact Monitoring of Selected Tunnel Structures
- Continuous Displacement and Settlement Tracking
- Automated Data Acquisition and Processing
- Reduced Manual Inspection Requirements
- Remote Monitoring and Historical Data Analysis
- Configurable Deformation Alerts
- Integration with Existing Engineering Monitoring Systems
Conclusion
Hu Entropy Tech combines optical visual measurement, edge computing, industrial communication, and cloud-based data management to provide an integrated approach to tunnel structural deformation monitoring.
By continuously tracking selected structural points and providing remote access to measurement data, the solution helps engineers understand tunnel deformation behavior, identify abnormal changes, and support long-term inspection and maintenance decisions.
Monitor Structural Changes. Analyze Deformation Trends. Support Tunnel Safety.
