A wireless-first building management deployment across 11 stations and one depot, designed to bring distributed equipment into a central operational view.
Metro stations are geographically distributed. Each hosts HVAC, lighting, escalators, lifts, LT panels, UPS/DG systems and environmental sensors. Historically, integrating these into a single supervisory platform requires extensive communication cabling between distributed controllers—adding cost, disruption during commissioning and reducing flexibility for future expansion.
NUOS controllers connect to equipment locally via RS485 / Modbus RTU. Controllers communicate to gateways over a Zigbee 3.0 mesh at the field layer. Gateways forward data to the platform, which surfaces a single operational view across all stations and the depot. This reduces conventional BMS control cabling between distributed controllers and gateways.
Integrated inputs include HVAC and lighting monitoring/control, escalator and lift status, LT-panel electrical parameters, UPS and DG status, energy metering, and environmental sensor data. Fire-alarm status is included as read-only integration; certified life-safety systems are not replaced.
The wireless-first approach allowed field commissioning to proceed without pulling long communication cabling runs between distributed controllers. Devices were provisioned, added to the Zigbee mesh, validated locally, and brought into the central platform in phased operational batches.
Implemented as India’s first wireless BMS for a metro station-and-depot project.
Source note: Univastu investor presentation filed with the NSE. Detailed measured outcomes and commissioning-certificate reference will be published once documentary confirmation is on file with NUOS.
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