Negative Pressure Room Monitoring

Problem

Isolation rooms depend on a pressure difference that can be lost when a door is left open or a fan fails, and staff outside the room are not told.

Opis rozwiązania

MILESGO gateways collect data from differential pressure sensors, door contacts, air handling units (AHU), run/stop and fault dry contacts over Modbus RTU / BACnet MS/TP, and deliver it to the BMS, SMS, email and messaging alarms, WEB HMI panels as BACnet/IP / MQTT. Field equipment keeps its own protocol and control logic; integration is done by configuration and point mapping, not custom code.

Typical scope

differential pressure sensors
door contacts
air handling units (AHU)
run/stop and fault dry contacts

Protocol path

Modbus RTU / BACnet MS/TP → BACnet/IP / MQTT

Implementation checklist for the project manager

Monitoring does not replace certified medical or safety alarm systems; keep them in place and treat MILESGO data as supervisory.
Keep sensor calibration certificates on file and plan recalibration intervals.
For hard-wired signals, list each DI/DO/AI/AO with its type (dry contact, 4–20 mA, 0–10 V, PT1000) and choose I/O modules accordingly.
Define an alarm matrix (priority, recipient, escalation) and test every alarm end to end at SAT.
Agree data retention and the report format needed for audits with the quality team at the start.
Confirm DIN-rail space and a stable 12–24 V supply in each panel; use UPS-backed power for critical monitoring.

Project deliverables

Signed point table and protocol mapping
Gateway configuration files and backups
IP address plan and network drawing
FAT and SAT test records
As-built documentation and operator training

Architektura systemu

Field layer: differential pressure sensors, door contacts, air handling units (AHU), run/stop and fault dry contacts, connected over Modbus RTU / BACnet MS/TP. Edge and integration layer: MILESGO protocol gateways and edge controllers, mounted on DIN rail in existing panels, polling each device, time-stamping values and buffering them locally. Upper layer: the BMS, SMS, email and messaging alarms, WEB HMI panels, which receives the data as BACnet/IP / MQTT. Remote access for maintenance runs over VPN rather than open internet ports.

Skład systemu

Field devices: differential pressure sensors, door contacts, air handling units (AHU), run/stop and fault dry contacts
Edge / integration: MILESGO protocol gateways and edge controllers
Upper systems: the BMS, SMS, email and messaging alarms, WEB HMI panels (BACnet/IP / MQTT)
Tools and commissioning: Web-based configuration, point table import/export (Excel), off-site simulation and on-site diagnostic tools

Możliwości oprogramowania i AI

Anomaly detection on trend dataW planach

Etapy wdrożenia

1
Site survey and point list
Inventory devices, protocols, register maps, panel space, power and network paths.
2
Design and point table sign-off
Map every point to the target protocol and system; agree it with the client and the upper-system contractor.
3
Configuration and FAT
Build the gateway configuration off site, simulate it and test against the signed point table.
4
Installation and wiring
Mount gateways on DIN rail, wire RS-485 / I/O / Ethernet, apply the IP plan.
5
SAT and alarm tests
Verify values against local readings, test every alarm and command end to end.
6
Handover and support
Hand over configuration backups, point table and as-built documents; train operators.

Korzyści dla klienta

Alarms reach the right person by SMS, email or messaging apps
Timestamped records for compliance and reporting
Abnormal conditions seen early, before they become failures
Reliable trend data for optimisation and fault diagnosis

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