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Hotel GRMS by Smart G4

Our Owned Technology

Technology

Our Owned Technology

The sBUSPro Open Protocol

sBUSPro is Smart Group G4's proprietary open-standard communication protocol — the backbone of a 360+ product ecosystem that integrates HVAC, lighting, energy, security, audio, and more under a single unified platform.

Two-Wire Bus Topology

The sBUSPro protocol runs over a simple two-wire bus, dramatically reducing installation costs and complexity compared to traditional wiring approaches.

360+ Native Products

Over 360 Smart G4 products — from dimmers and relays to HVAC controllers and energy meters — all communicate natively over sBUSPro.

Multi-Protocol Bridges

Bridges for KNX, DALI, DMX, Modbus RS-485, BACnet, HAI, Nuvo, TIS, HDL, Cool Master, RS-232, 0-10V, and more enable universal third-party integration.

Up to 250 Devices/Segment

Each sBUSPro segment supports up to 250 devices with full bidirectional communication, scalable to thousands of devices across multiple segments.

Real-Time Control

Sub-millisecond response times for lighting, HVAC, and security commands ensure a seamless, responsive smart building experience.

Open & Vendor-Neutral

The sBUSPro protocol specification is open — any manufacturer can build compatible devices, ensuring long-term investment protection and freedom of choice.

Smart G4 sBUSPro circuit board and automation technology
Smart G4 Royal — S-Bus award-winning smart building platform

Supported Integration Protocols

KNXDALIDMXModbus RS-485Modbus RTUBACnetHAINuvoTISHDLCool-MasterC-TouchVRF/VRV Multi-SystemRS-2320-10VLutronCrestronAMXControl4Rest APIDLLXMLOXLELanVBasic SimulatorsODBCBMSPMSMatterAlexaGoogle HomeSonixAIHBBSWAVEXH-WiFiUDPIoTSB-IridiumTuya (coming soon)Zigbee Gateways (coming soon)

Technology Partnership

Smart G4 + HeyOi Observation Intelligence

Visit heyoi.com

Smart G4 is integrating with HeyOi — an Observation Intelligence (O.I.) platform that converts real-world observation into instant, actionable intelligence in under two seconds. Where Smart G4 controls the building, HeyOi watches it — and the two together create a building that not only responds to commands, but understands what is happening and recommends the right action before anyone has to ask.

What is Observation Intelligence?

O.I. is the intelligence layer between what a building sees and what it needs to understand. It monitors energy consumption patterns, plant and equipment health, human behaviour and movement, occupancy density, and environmental conditions — then surfaces precise, contextual recommendations at the exact moment a decision is needed. No dashboards to check. No logs to read. The insight arrives when it matters.

Energy & Plant Monitoring

Intelligent energy observation

HeyOi monitors energy draw across every circuit, plant room, and mechanical system. Smart G4 acts on the insight — adjusting HVAC setpoints, dimming lighting zones, or switching standby loads — before waste accumulates. Equipment anomalies are flagged before they become failures.

Irrigation & Landscaping

Soil and plant condition intelligence

O.I. observes soil moisture, plant stress indicators, and weather patterns. It recommends irrigation schedules to the engineering team and triggers Smart G4 valve and pump controls automatically — watering only what needs it, only when it needs it.

Human Behaviour & Ambiance

Occupancy-aware building ambiance

HeyOi tracks human movement, density, and behavioural patterns across zones. Smart G4 adjusts lighting scenes, temperature, ventilation, and audio ambiance in real time to match the actual occupancy — not a schedule. A lobby filling up triggers a different environment than an empty one.

Housekeeping

Cleaning schedules driven by observation

Rather than fixed cleaning rotations, O.I. observes actual room usage, footfall in corridors and common areas, and post-checkout occupancy data. It recommends to housekeeping which rooms and areas need attention now, which can wait, and how many staff are needed — reducing labour waste and improving guest experience.

Hospital & Healthcare

Patient load intelligence for clinical staff

In hospital environments, O.I. observes patient quantity, length of stay, ward density, and care demand patterns. It recommends staffing levels to nursing management, flags when a ward is approaching capacity, and helps doctors prioritise rounds — all from observation, with no manual data entry.

Facilities & Engineering

Predictive maintenance from observation

O.I. watches mechanical systems, access patterns, and equipment cycles. When it detects a pattern that precedes failure — unusual vibration, thermal drift, abnormal run times — it alerts the engineering team via Smart G4 SMS intelligence before the fault occurs, not after.

How the Integration Works

01

HeyOi observes

O.I. continuously monitors the building — energy, occupancy, equipment, environment, and human behaviour — in real time.

02

Intelligence is generated

In under two seconds, O.I. converts raw observation into a contextual recommendation: what is happening, who needs to know, and what action is appropriate.

03

Smart G4 acts

The recommendation is delivered to the right person via Smart G4 SMS intelligence, or executed automatically by the BMS — lights, HVAC, valves, alerts, staffing notifications.

HeyOi — Observation Intelligence Platform

Technology partner — heyoi.com · Deploying in property, healthcare, manufacturing, agriculture, mining, and urban environments

Ready to Build on sBUSPro?

Download the technical documentation or contact our engineering team to discuss your project.