The BA190 Edge I/O module, leveraging the BACnet/IP protocol, provides an efficient and seamless integration solution.
Case Details
Maintaining optimal environmental conditions in hospital wards is critical for patient recovery. Real-time monitoring of temperature, humidity, and air quality (e.g., CO₂, PM2.5) is required, along with automated control of HVAC and ventilation systems. Traditional solutions face challenges such as complex wiring and poor integration with Building Automation Systems (BAS). The BA190 Edge I/O module, leveraging the BACnet/IP protocol, provides an efficient and seamless integration solution.
1. Hardware Deployment
- BA190 BACnet/IP Edge I/O Module, configured with:
- Y31 (4CH Analog Input Module): Collects data from temperature/humidity sensors (4-20mA) and air quality sensors (0-10V).
- Y24 (4CH Relay Module): Controls ventilation equipment.
- Network Architecture: Multiple BA190 modules are cascaded via dual Ethernet ports, covering all wards and transmitting data directly to the BAS server.
2. Data Acquisition & Transmission
- Temperature/humidity sensors (PT100/4-20mA) connect to the Y31 module with ±0.1% accuracy.
- Air quality sensors (CO₂, PM2.5) communicate via RS485 (Modbus RTU) and are converted to BACnet/IP objects.
- The built-in web server allows remote threshold configuration (e.g., triggering alarms if temperature exceeds 26°C).
3. System Integration
- BA190 packages data as BACnet/IP standard objects (e.g., Analog Input, Binary Output) for seamless integration with BAS platforms.
- The BAS displays real-time ward conditions and sends control commands (e.g., adjusting ventilation rates).
Key Advantages
- Rapid Deployment: DIN rail mounting minimizes wiring complexity.
- High Reliability: Tested for -40°C to 85°C operation, with a hardware watchdog for stability.
- Flexible Expansion: Additional AI/DI modules can monitor light, noise, and other parameters.
- Remote Maintenance: Firmware updates and parameter adjustments via BLRAT tool, reducing maintenance costs.
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