Service Section Technical Training Dec 2005

A Standard Wireless Networking Protocol Zigbee Wireless Technology

Contents 1.Introduction 2.RF NIM 3.Future Development

INTRODUCTION

Why Wireless? 1. Split units: - WIRELESS Communication between outdoor & indoor and multi-split units 2. Fan Coils and Mini-chillers - WIRELESS Communication between chiller and fan-coils - Have units work as a system To offer installers a quicker and more cost effective solution on system installation Introduction

Benefit Of Wireless networking Total cost of installation and labor is less than wired solution Much lower installation time Easier to configure and avoiding wiring errors Easy to expand and easy to rearrange Lower impact to the end customer So simple that no specialist skill is required Great for Retrofit situations No wiring esthetic problems to solve Introduction

Wireless system optimized for building environment Works reliably in buildings: signals pass through walls, ceilings and other building materials Communication is secure: Encryption guarantees secrecy of information Ease of installation: No specialist knowledge required – no special configuration required No interference: Works at low radio power (0.5% of GSM mobile phone), accepted in hospital and other environments Introduction

Why ZigBee? Low cost Low power (Maximum battery life) Network range (between 2 notes) ~ 40m Data transmission rate 250kbps for 2.4GHz Highly reliable Mesh and tree networking protocol Automatic retries and acknowledgements Can avoid same frequency signal collision using Carrier Sense Multiple Access (CSMA) technology Highly secure Utilizes AES 128-bit encryption Introduction

Zigbee VS Other Protocol Introduction Why ZigBee? (Memory Size) (Hour)

Mesh network technology is a key feature of ZigBee ZigBee Introduction

How ‘MESH’ NETWORKING works? 3. Devices automatically start communicating with nearby devices 4. Message pass through several nodes to the final destination 5. A single virtual network results, a ‘MESH’ network 1. Complex infrastructure layout includes walls, ceilings, staircases, etc. 2. Control devices are fitted with wireless technology Introduction

An Organization with a mission to define reliable, cost-effective, low-power, wirelessly networked, monitoring and control products based on an open global standard Result is a set of interoperable solutions recognizable in the market What is the ? Introduction

Eight promoter companies –Ember, Freescale, Honeywell, Invensys, Mitsubishi, Motorola, Philips and Samsung A rapidly growing list (Over 100 participants) of industry leaders worldwide committed to providing ZigBee-compliant products and solutions Who is Driving ZigBee? Introduction

Typical ZigBee Hardware SPI™ ANTENNA MCU Transceiver Introduction

RF NIM

No Wire Connection for Communication Bus !! NIM No Manual Address Configuration (System Self Configured) RF NIM

Netware2 NIM Master Slave 2 PC NIM PC Gateway Global Control hub TYPICAL BUS STRUCTURE FOR NIM NETWORK Main board SLM3, Netware2 Main board Main board Master Slave 1 IR Remote NO User Interface Group 1 Group N NIM Main board Netware2 Main board Communication Bus RF NIM

Netware2 NIM Master Slave 2 PC NIM PC Gateway Global Control hub TYPICAL BUS STRUCTURE FOR RF NIM Main board SLM3, Netware2 Main board Main board Master Slave 1 IR Remote NO User Interface Group 1 Group N Main board Main board RF NIM NIM

1 st Floor Ground floor 3 rd floor 2 nd Floor RF NIM

Application (Benefit) Hotel / Office / Building energy management Major operating expense for hotel Centralized HVAC management allow to make sure empty rooms are not cooled Retrofit capabilities Battery operated control panel can be placed for convenience Interoperability with other devices (lighting, BMS system, security system…) with Zigbee protocol Easy installation, replacement, expand RF NIM

FUTURE DEVELOPMENT

Future development (proprietary solution): Wireless thermostat – Wireless indoor and outdoor unit (split air-con system) Future Development

Thank You