Empty rooms that consume energy
Air conditioning on full and lights on while the guest is out: that is a large share of a hotel’s bill.
Our answer
Automatic economy mode as soon as the room is unoccupied or unsold.
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- Guest room management (GRMS)
Guest room management (GRMS)
Every hotel room, intelligently controlled.
- PresenceEmpty room, reduced energy
- PMSLink with the hotel software
- DND · MURCorridor signalling
The challenges
What is at stake
The Guest Room Management System links each room to reception: occupancy detection, air conditioning, lighting, “Do not disturb” / “Make up room”, and a link with the hotel software to save energy in unoccupied rooms.
Guest comfort
Guests want a cool room when they arrive and simple controls.
Our answer
Pre-cooling on arrival, an intuitive thermostat and lighting scenes.
Efficient housekeeping
Knocking on a “Do not disturb” door or missing a room to clean harms service quality.
Our answer
“Do not disturb” / “Make up room” status shown in the corridor and at reception in real time.
A complete overview at reception
Without supervision, there is no way of knowing which room is occupied, faulty or badly set.
Our answer
A real-time hotel map: occupancy, temperatures, alarms.
Architecture
An architecture designed in layers
Each room has its own controller; all of them are linked to the reception supervision and the hotel software.
Every installation is delivered tested, labelled and documented, for simple operation and maintenance.
- Layer 01
Room entrance
Key card holder, door contact and “Do not disturb” / “Make up room” lights.
- Layer 02
Sensors
Presence detection, window contacts, temperature.
- Layer 03
Room controller
It controls air conditioning, lighting and curtains according to occupancy.
- Layer 04
Hotel network
Rooms linked to the supervision, over a bus or the IP network.
- Layer 05
Reception & PMS
Supervision of all rooms and data exchange with the hotel software.
Services
Our services
Room controllers
One controller per room, reliable and programmed to your comfort standards.
Key card holder and occupancy detection
The room knows whether the guest is present, even with the card removed.
Automated air conditioning and lighting
Comfort or economy set points applied automatically.
“Do not disturb” / “Make up room” signalling
Corridor lights and in-room buttons for housekeeping.
Monitoring from reception
An interactive hotel map: status, temperatures and alarms.
Interface with the hotel management system (PMS)
Room sold or vacated: the hotel software adjusts the mode automatically.
Technologies we master
KNX certified
GRMS controllersKey card holderPMS interfaceMonitoring
KNX certified
Method
Our method, step by step
- 1
Comfort standards
Temperatures, scenes and energy-saving rules defined with the hotel.
- 2
Mock-up room
One room equipped and approved before the roll-out.
- 3
Deployment
Installation floor by floor, coordinated with hotel operations.
- 4
PMS integration
Data exchange with the hotel software and status tests.
- 5
Training
Reception, housekeeping and maintenance teams trained.
Standards
Compliance with standards
- KNX · BACnet · ModbusRoom controller protocols
- PMS interfacesLink with the hotel software
- EN ISO 52120-1Impact of building automation on energy performance
Deliverables
What we hand over to you
- Drawing of rooms and equipment
- Controller programming
- Mock-up room report
- Reception supervision guide
- PMS interface settings
Maintenance & 24/7 support
This system can be covered by a preventive and corrective maintenance contract, with priority response on critical sites.
See the plansHow much does a GRMS save?
A significant share of room energy, because air conditioning no longer runs at full power in empty rooms. We estimate it based on your occupancy rate.
Does the guest keep control of comfort?
Yes, within the limits set by the hotel: the guest sets temperature and lights, the system handles absences.
Can a hotel be equipped while operating?
Yes: once a mock-up room is approved, the roll-out is done floor by floor, in coordination with bookings.
Smart building
Related trades
Let’s talk about your site
A project, an installation to take over or to maintain?
Our engineers study your needs and reply within 48 business hours with initial technical and budget guidance.