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GRMS Tutorial Document

The Guest Room Management System (GRMS) is an automation solution for hotels that enhances guest comfort and streamlines operations by controlling room functions like lighting and HVAC. It features centralized monitoring, energy-saving capabilities, and integration with Property Management Systems. Key components include a Room Control Unit, various sensors, and communication protocols such as Modbus and TCP/IP.

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Mohamed Afifi
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282 views3 pages

GRMS Tutorial Document

The Guest Room Management System (GRMS) is an automation solution for hotels that enhances guest comfort and streamlines operations by controlling room functions like lighting and HVAC. It features centralized monitoring, energy-saving capabilities, and integration with Property Management Systems. Key components include a Room Control Unit, various sensors, and communication protocols such as Modbus and TCP/IP.

Uploaded by

Mohamed Afifi
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Guest Room Management System (GRMS) Overview

What is GRMS?

A Guest Room Management System (GRMS) is an intelligent automation solution used in hotels to control

and monitor guest room functions such as lighting, HVAC, curtains, and service indicators. It enhances guest

comfort, reduces energy consumption, and streamlines hotel operations.

Key Objectives

- Enhance guest comfort and convenience

- Enable energy saving via occupancy detection

- Centralized monitoring and control

- Integrate with Property Management Systems (PMS)

Core Functions

- Lighting Control: Manual and automatic scene-based lighting

- HVAC Control: Temperature adjustment based on presence

- Curtain/Blind Control: Automated or manual operation

- DND/MUR Indicators: Do Not Disturb / Make Up Room status

- Keycard Detection: Switch modes based on occupancy

- Scene Management: Welcome, Sleep, Exit modes

- Integration with PMS, BMS, and other systems

System Architecture

1. Front Desk or PMS System

2. GRMS Central Server

3. Room Control Unit (RCU)

4. End Devices: Lights, HVAC, Curtains, Switch Panels

Communication can be over TCP/IP, Modbus, KNX, or other protocols.

Hardware Components

- RCU (Room Control Unit)


Guest Room Management System (GRMS) Overview
- Wall Panels (Touch or Push Buttons)

- Motion and Door Sensors

- Thermostats

- Curtain Motors

- Keycard Holder

Software Features

- Real-time room monitoring

- Remote access and control

- Alarm and notification system

- Integration with PMS and BMS

- Scene and schedule management

Communication Protocols

- Modbus / BACnet for BMS integration

- KNX, DALI, ZigBee, Z-Wave for device control

- TCP/IP for server-client interaction

Typical Guest Experience Flow

1. Guest checks in -> Room enters Welcome Mode

2. Keycard inserted -> Lights and HVAC activate

3. Guest presses DND -> Room panel updates, staff notified

4. Guest leaves -> Energy saving mode activated

Testing Use Cases

- Keycard test: activates room systems

- Motion detection: lights/HVAC adjust

- Button press: triggers room scenes

- Network failure: test fallback modes

- PMS link: automatic room readiness


Guest Room Management System (GRMS) Overview
Vendors & Platforms

- Interel

- Schneider Electric

- Honeywell

- Legrand / BTicino

- Lutron

Standards & Certifications

- KNX Certified

- EN15232 (Energy Performance)

- ASHRAE 135 (BACnet)

- IEC 61131-3 (PLC Programming)

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