Zig Bee Wireless Control Solutions for Intelligent Buildings
Zig. Bee Wireless Control Solutions for Intelligent Buildings ® Connected Home Conference 2011 by Eduardo Yudowski, Legrand, National Category Manager
What is Zig. Bee ? • Zig. Bee is a wireless RF (Radio Frequency) open protocol specially designed for control, monitoring and sensor applications • Zig. Bee was also designed for low data rate communications, low power and long battery life applications • Zig. Bee is based on the IEEE 802. 15. 4 -2003 standard • Zig. Bee is often referred as LR-WPANs (Low-Rate Wireless Personal Area Networks) • Zig. Bee Alliance is an open, non-profit association of members that has created the Zig. Bee Standard Zig. Bee is a registered trademark of the Zig. Bee Alliance.
What is Zig. Bee cont… ? • Zig. Bee RF 4 CE (Radio Frequency for Consumer Electronics), is a subset of Zig. Bee standard designed for RF-based remote controls. eg TV, DVD, etc • One of the advantages of Zig. Bee RF 4 CE is that there is no need of direct line of sight between remote control and devices • The main driver for the Zig. Bee RF 4 CE is the increased demand for interaction (2 -way communication) and functionality not supported by IR remotes “Zig. Bee is set to become the de-facto communication protocol for control networks”
Who is in the Zig. Bee Alliance? And hundred of participants worldwide • Security • Home Automation • Consumer electronics • Building Management • Energy Retailers • Control, etc
Why Zig. Bee is accepted worldwide? 315/915 MHz 433/868 MHz 315/426 MHz 315/433 MHz 433/915 MHz 2. 4 GHz Zig. Bee protocol supports the following unlicensed radio frequencies 868 MHz, 915 MHz and 2. 4 GHz which is suitable for all continents
How Zig. Bee compares to other protocols? Standard Wi-Fi Bluetooth Zig. Bee IEEE Specification 802. 11 a/b/g 802. 15. 1 802. 15. 4 Frequency Band 2. 4 Ghz, 5 Ghz 2. 4 Ghz 868 Mhz, 915 Mhz, 2. 4 Ghz Max Signal Rate 54 Mb/s 1 Mb/s 250 Kb/s Nominal Range 100 m 10 -30 m 10 -100 m (p 2 p) < 200 m. W < 100 m. W <1 m. W 2007 8 65000 WLAN - Wireless local area network WPAN - Wireless personal area network LR-WPAN - Low data rate wireless personal area network Application Computer networks Exchange data over short distances Low-power, mesh control networks Stronghold High data rate Interoperability , cable replacement Long battery life, low cost Logo Nominal Tx Power Number of Cell nodes Name
What is the forecast for Wireless Sensor Network Chipsets? Wireless Sensor Network IC Shipmnet (Mi) 700 600 Watch this space 500 400 802. 15. 4 IC chipset 300 200 100 0 2009 2010 2011 2012 2013 2014 2015 Zig. Bee based devices are set to grow exponentially over the coming years Source : ABI Research
What are the main features? • Self forming and repairing mesh network • Low power consumption • Bi-directional communication • Secure, 128 bit data encrypted • Easy to install, no wires • Easy to expand, scalable
Interoperability Zig. Bee • Zig. Bee has a number of communication ‘profiles’ Zig. Bee Pro Stack (Home automation, Smart Energy Metering, Hospital and Health Care, CE, Retail, Telecom, etc) Bridge • Each profile addresses the needs of a specific application market Zig. Bee RF 4 CE Stack • Products based on different Zig. Bee profiles are not interoperable • The Zig. Bee Alliance is currently working to simplify the number of profiles to allow greater interoperability between systems
Zig. Bee Applications • In the context of Home/Building Automation, Zig. Bee is the ideal solution for applications such as: • Buildings where no new cables are allowed (heritage buildings) • Simple automation functions (eg 2 -way switching) • Extension to an existing Home Automation system • Upgrade a traditional installation with wireless devices eg. lights, movement sensors
Zig. Bee application example • Multi-way switching - installation without any masonry work Original switch Add 2 more switches
Zig. Bee application examples • Curtains/Blinds control with interlocked relays • Keyring remote or wall switches to activate scenes, eg Welcome Home, Away etc
Zig. Bee network elements Zig. Bee Coordinator (ZC): eg relay/dimmer - The coordinator forms the root of the network tree and function as router as well - There is only one Zig. Bee coordinator in each network Zig. Bee Router (ZR): eg relays/dimmers - Routers pass on data from and to other devices - A Router can be defined as coordinator. Zig. Bee End Device (ZED): eg Switch, scenario controller, etc - Low complexity, enough functionality to talk to a Coordinator or Router (star topology) - Likely to be battery operated - It cannot relay data from other devices
Typical Zig. Bee devices Transmitter Switches (battery operated) 2 MODULES (eg 2 module plate) Receiver (Transceiver) Dimmers and relays (mains operated 240 V) 2 MODULES eg 2 ch relay 3 MODULES (eg 3 ch relay)
How to setup a Zig. Bee network? Three Steps to set up a Zig. Bee network Step 1 - Network Creation Definition of the Network Coordinator Step 2 - Associating devices to a Network Coordinator builds database of devices that belong to the network Step 3 - Link control buttons with actuators (Relays/Dimmers) Create the links between buttons and actuators (routing table) B Zig. Bee coordinator (ZC): Actuators (relay/dimmer) Zig. Bee Router (ZR): Actuators (relays/dimmers) Zig. Bee End Device (ZED): Control buttons ZED to ZC/ZR link ZC-ZR Routing link System routing from A to B in case of link fault A
Installation example: single switch A • N Simply replace existent mechanical switch with the Zig. Bee receiver
Installation example: multi-way switch A AA N N
Installation Considerations • The maximum distance in open space is 100 m Loss: 5 -20% • The maximum distance indoors is around 15 m • The maximum re-transmissions is 30 times (excluding battery operated switches). • Therefore the potential maximum distance between indoor devices is 15 m x 30 devices = 450 m ! wood, plaster-board Loss: 20 -40% brick, block Loss: 40 -90% RC according to metal reinforcement and the transmitter layout Loss: 90 -100% Metal cladding, aluminum barrier, iron grill L L N N
Programming Zig. Bee devices • Any device (Commands or Actuators) have push buttons, which are used to create the network and program functions APB Application Push Button LPB Learning Push Button LLED Learning Indicator NPB Network Push Button NLED Network Indicator
Integration with Wired Systems BUS Technology Zig. Bee RF Technology Bus to Zig. Bee Gateway
Summary • Zig. Bee is set to become the de-facto communications protocol for control, monitoring and sensor applications • Global revenue for Zig. Bee modules will grow from an estimated $429 millions to $1. 7 billion in 2015 • Zig. Bee will redefine the world of wireless control applications (energy, smart home, building automation, health , consumer electronics, hospitality and industrial sectors)
Thank you
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