1. Project Background
The office building includes multiple subsystems:
HVAC and chilled/hot water systems
Electrical distribution rooms
Office environments across multiple floors
Plumbing and drainage systems
Existing issues:
Environmental data collected manually
Hidden risks such as leakage are not detectable in real time
Systems operate in isolation without unified integration
2. System Objectives
The goal is to build a low-maintenance, scalable monitoring system enabling:
Real-time environmental sensing
Infrastructure risk detection
Unified data integration
Event-based alerting
3. System Architecture
Built on ThinkLink, the system consists of four layers:
1. Sensor Layer
Temperature & humidity sensors
Pipe temperature sensors
Rope-type water leakage sensors
2. Edge Access Layer (DIN-rail DTU)
Multi-sensor data aggregation
Protocol conversion and normalization
Local anomaly detection (e.g., water leakage)
Offline buffering and retransmission
3. LoRaWAN Network Layer
Based on LoRaWAN:
Multi-floor building coverage
Low-power long-term operation
Reduced cabling complexity
Suitable for harsh indoor environments
4. ThinkLink Platform Layer
Device management
Real-time visualization
Alarm and event handling
Historical data analytics
4. Results
Early detection of water leakage events
Visibility into HVAC pipeline conditions
Continuous environmental monitoring
Shift from inspection-based to event-driven maintenance
5. Key Takeaway
The value of the system lies not in adding sensors, but in restructuring the monitoring logic:
From fragmented systems → unified platform
From manual inspection → automated sensing
From reactive maintenance → real-time alerting
From experience-based → data-driven operations
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