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Background
Modern engineering projects utilize various types of seismic isolation bearings, including natural rubber bearings, lead-rubber bearings, high-damping rubber bearings, elastic sliding bearings, friction pendulum bearings, and others. Post-installation, these bearings are subject to creep and temperature-induced deformations, making deformation monitoring a critical challenge. While multiple monitoring methods exist, selecting the optimal approach is essential for effective assessment. Visual monitoring systems, with their proven maturity and efficacy, offer a robust solution for projects requiring seismic isolation. Notably, RUHR IoT’s Visual Deformation Monitoring Technology has been successfully applied in building seismic bearing systems.

Case Study: Yuxi Kindergarten Seismic Bearing Monitoring Project

Location: Yuxi, Yunnan Province, China
Scope: Five monitoring devices installed in the seismic isolation layer, positioned at the four corners and center of the building.
System Configuration:

• Binocular cameras paired with edge computing platforms and target markers.
• Cameras capture target markers, while edge computing units calculate 3D displacements (x, y, z axes).
• Data transmission via IoT cellular networks or local area networks to a centralized platform.
  Operational Timeline: June 2022 – Present

Visual Deformation Monitoring System Components

Monitoring Principle

RUHR IoT’s Bearing Displacement Visual Monitoring System employs:

1. Binocular ranging and depth map-to-point cloud conversion technology to establish a coordinate system with the monitoring device as the origin.
2. Continuous acquisition of 3D coordinates for rubber bearings.
3. Calculation of 3D deformation variables by analyzing coordinate changes over time.

On-site Deployment of Visual Monitoring Equipment

Product Advantages

1. Compact Design: Space-efficient and easy to install.
2. Flexibility & Efficiency: Low power consumption, cost-effective maintenance, and versatile functionality.
3. Integrated Capabilities: Combines control, data acquisition, analysis, storage, synchronization, offline caching, automatic calibration, on-site alarms, and software updates.
4. Edge Computing Power: Real-time processing and decision-making at the source.
5. Robust Reliability: Multi-layered fault protection ensures stable, long-term operation in unmanned environments.

Why Choose RUHR IoT?

RUHR IoT’s Visual Deformation Monitoring Technology delivers real-time safety monitoring for building seismic bearings, enabling early detection of structural risks. By safeguarding infrastructure integrity, we protect both building safety and human lives.