Expertise 06 · BMS and GRMS
A clear view of your installations and how your guest rooms operate.
Building supervision and guest room management: we define the information, alarms, controls and scenarios your teams need, then coordinate their implementation with the other packages.
Area 06
- Functional studies
- Building supervision (BMS)
- Guest room management (GRMS)
- Operations
Main interfaces
Electrical power · IT and cybersecurity · ELV systems · Hospitality technology
Three terms not to confuse
- BMSBuilding management system (GTC in French)
- Supervision of technical installations from a central station: statuses, alarms, metering and controls.
- BASBuilding automation system (GTB in French)
- The broader set of automation and supervision that controls building equipment: air conditioning, ventilation, lighting…
- GRMSGuest room management system
- Control of hotel room comfort functions — air conditioning, lighting, presence — according to occupancy status.
Challenges
Supervision is worth what it helps you decide.
Reliable, useful information
Which statuses to report, which alarms to handle, who receives them and how to respond: the relevance of the points matters more than their number.
Functions defined before they are programmed
The functional analysis describes what each piece of equipment and each scenario must do. It is the reference for contractors and for testing.
A tool operations make their own
Clear views, prioritised alarms and documentation: the tool must help teams every day, not just on handover day.
Scope
From the building to the guest room.
Depending on the assignment, we work on the functional analysis, the supervision system, guest room management or their coordination with the other packages.
Functional studies
- Functional analysis and points list
- Supervision architecture
- Protocols and interfaces with other packages, where the scope justifies it
Building supervision (BMS)
- Reporting of statuses and technical alarms
- Metering and consumption monitoring
- Lighting management and automation
- Controls and time schedules
- Automation and substations, depending on scope
Guest room management (GRMS)
- Comfort controls according to in-room equipment
- Scenarios based on occupancy status
- Links with the PMS, to be assessed according to systems and authorisations
Operations
- Supervision views and alarm priorities
- Operating documentation
- Handover to technical teams
Scope conditions
- Interfaces with other packages’ equipment depend on their protocols and documentation: they are verified case by case.
- Energy optimisation can be a design and operating objective; no saving is announced without measurement, a defined scope and a documented baseline.
- The fire safety system keeps its own functions: supervision can receive information from it without replacing it.
Interfaces
Supervision depends on what the other packages make available.
Available points and protocols are collected from each contractor before being entered in the points list.
Electrical power and infrastructure
Switchboard statuses, electrical metering and technical alarms.
IT infrastructure and cybersecurity
BMS network and remote access for maintenance teams, isolated from other traffic.
ELV and security systems
Status reports from security and fire safety systems, as defined and validated.
Hospitality technology
Coordination of guest room management with guest services and, where applicable, the PMS.
Air conditioning, ventilation and equipment suppliers
Available points and protocols to be confirmed with each supplier.
How we work
Define, coordinate, then test point by point.
Operating needs
Equipment, organisation of technical teams and expected information.
Functional analysis
Points list, alarms, controls and scenarios, validated with you.
Package coordination
Collecting protocols and available points from each contractor.
Commissioning and testing
Point-to-point tests, then scenario tests.
Documentation and handover
Views, procedures and operating documentation handed over to your teams.
Deliverables
Example deliverables
Deliverables are defined in each proposal, according to the assignment.
- Functional analysis
- Points list
- Operating scenarios
- Point-to-point test reports
- Operating documentation
Sectors
From the hotel room to technical buildings.
Hospitality
Guest room management and supervision of the property’s technical installations.
View sector : HospitalityHealthcare
Supervision of technical installations and alarms, separate from biomedical equipment.
View sector : HealthcareIndustrial and technical sites
Supervision of building utilities and technical alarms, within the defined scope.
View sector : Industrial and technical sitesOffices and showrooms
Technical supervision of office buildings: lighting, air conditioning, metering.
View sector : Offices and showrooms
Frequently asked questions
BMS and GRMS: your questions.
What is the difference between BMS, BAS and GRMS?
The BMS centralises supervision of installations; the BAS more broadly covers building automation and technical management; the GRMS controls hotel room comfort functions. A project can combine several of these levels.
Can you connect all our equipment to the BMS?
Not automatically. Each piece of equipment needs a usable interface and documentation. We check these conditions before adding it to the points list.
Can a GRMS reduce energy consumption?
It can contribute, for example by adjusting comfort according to occupancy. The actual effect depends on the building and how it is used; it has to be measured, and we do not announce percentages without documented measurement.
Should a BMS be planned from construction?
It is preferable: points, networks and interfaces are easier to plan before the works. A BMS can nevertheless be added to an existing building, after a study.
First conversation
Let’s scope your BMS project.
Tell us about the context: we will prepare a first conversation with the relevant technical questions.
- Type of building and installations concerned
- Existing supervision or guest room management
- Project phase
- Teams in charge of operations