evoluon zigbee presentation
TRANSCRIPT
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ZigBee Wireless Mesh
Networking.Basic Concepts and Latest Developments
Dave Blissett Marketing Manager
Telegesis (UK) Ltd.
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Agenda & the Aim of this Presentation
Agenda Basic ZigBee concepts
Whats in a ZigBee
node?
ZigBee Profiles
How to add ZigBee toyour designs
ZigBee in the Future
Aims of this Presentation To give you an basic
understanding of ZigBee
Introduce Mesh networkingconcepts
What you need to considerwhen adding ZigBee
Understand if ZigBee issuitable for your next design
How you can include ZigBeein your next design.
Show you where ZigBee isheaded
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ZigBee Key facts
A high level communication protocol using small,low-power digital radios based on the IEEE
802.15.4 standard for wireless networks
Up to several hundred (client) nodes per network 16 channels in the global 2.4 GHz band
Full Mesh Networking Support
128bit AES security
Network and link keys can restrict access Easy deployment
Reliable - self forming & self healing
Very long battery life (no new wires)
Low cost
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Where does ZigBee fit?
SHORT
LONG
LOW HIGH
TEXT INTERNET/AUDIO COMPRESSED VIDEO MULTI-CHANNELDIGITAL VIDEO
Bluetooth1
Bluetooth 2
ZigBee
802.11b
802.11a/HL2 & 802.11g
802.15.3/WIMEDIARange over1.5Km withPA module
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ZigBee compared with other Wireless Standards
ZigBee The Technology
Market Name Wi-Fi Bluetooth ZigBeeUnderlying Standard 802.11b 802.15.1 802.15.4
Application Focus Web, Email, Video Cable Replacement Monitoring & Control
Battery Life (days) 0.5 - 5 1 - 7 100 - 1,000+
Network Size 32 16 100s to 1000s
Bandwidth (K bits/s) 11,000+ 720 20-50
Range (meters) 1 - 30+ 1 - 10+ 1 - 1000+
Network Architecture Star Star Mesh
Optimized For SpeedLow Cost,
ConvenienceReliability, Low Power,Low Cost, Scalability
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Star vs Meshing
Wi-Fi,Bluetooth,GSM ZigBee
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ZigBee Mesh Network - 1
Co-ordinator /FFDRouters/FFDs
Sleepy End Device/RFD Under ZigBee PRO the co-ordinatorestablishes a PAN ID and nodeswithin range effect joining
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ZigBee Network Establishment
As routers join a ZigBee PROnetwork they mesh with eachother
Co-ordinator /FFDRouters/FFDs
Sleepy End Device/RFD
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ZigBee PRO Network 3
End devices do not haverouting responsibilities innetworks being asleep most
of the time
Co-ordinator /FFD
Routers/FFDs
Sleepy End Device/RFD
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ZigBee Network 4
The resulting networkis very robust andreliable
Co-ordinator /FFD
Routers/FFDs
Sleepy End Device/RFD
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ZigBee Network 5
Assume a routing node isdamaged or lost from the
network
Co-ordinator /FFD
Routers/FFDs
Sleepy End Device/RFD
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ZigBee Network Healing 6
The loss of a node is notcatastrophic in most ZigBee PROnetworks and may not adverselyaffect the network at all
Co-ordinator /FFD
Routers/FFDs
Sleepy End Device/RFD
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ZigBee PRO Network 7
Nodes will seek alternative datapaths back to the co-ordinator. Thisprocess is continuous with ZigBeePRO allowing for a changing radio
environment within a network
Co-ordinator /FFD
Routers/FFDs
Sleepy End Device/RFD
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Typical ZigBee PRO network
Mesh Link
Star Link
Co-ordinator /FFD
Router/FFD
Sleepy End Device/RFD
Mixed Star and Mesh topologies
End devices, typically battery powered
Routers, typically mains powered
Co-ordinator
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What's in a ZigBee Node? Ember EM357 SOC
32 bit ARM Cortex M3
(@1.2V) 192k of Flash, 12k of RAM
109dB link Budget 123dB withPA
Peripherals (ADC, timers etc.)
Chip Antenna and U.FLcoaxial Connector
AT command set & profiles
FCC Approval, tested forEuropean Regulations
Canada, South Africa andAustralia to follow
EM3x0 Silicon
EmberZNet Pro
Software
InSightDevelopmentTools
Telegesis AT command set
EM3x0 Silicon
EmberZNet Pro
Software
InSightDevelopmentTools
Telegesis AT command set
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ZigBee ProIn October 2007 the ZigBee Alliance announced an expanded set of features
PRO Implements support for larger networks
Multiple methods to simplify routing
ZigBee 2006 uses a tree structure which canlead to address table churning
Stochastic addressing simplifies networkformation
Asymmetric link handling detects asymmetric
links and optimises path selection
Many to one Routing provides a single route ofdiscovery to an aggregation point
Keeps table size small and minimizes routebroadcast giving more bandwidth for data
Embeds routing information in the message
Security upgraded with trust centres Frequency Agility.
Telegesis were first module OEM to offerPRO
Highly recommended for new designs.
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ZigBee Profiles. Application Profiles
Unify data exchange on application level.
Assigned to specific application area
Agreements on device types, messagingformats, actions and functions to be usedin application.
Public profiles are specified by ZigBeeAlliance to provide interoperability between
devices from different manufacturers.
Private profiles are designed by vendorsand used for custom applications
Ensures Network interoperability but does notimply application layer interoperability
Products with the same application profilesinteroperate end to end
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Why Do We Need Profiles?
Need a common language for exchanging data
Need a well defined set of processing actions
Device interoperability across different manufacturers
Simplicity and reliability for the end users
Allows solid test programmes to be created
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ZigBee Smart Energy
Supported features Electric, Gas, Water, & thermal meters
Device support for
Programmable Communicating Tstats
In Home Displays
Load Control Devices Energy services Portal
Meter
Range extender
Basic metering measurements, historicalinfo, etc
Security to allow consumer only, utility only,or shared networks
Battery or mains powered
Multiple measurement types
including load profile, power factorsummation, demand, and pricing tiers
Two-way communications of metering data and energy management.Goes beyond automated meter reading to demand-response systems for real time
pricing and voluntary load shedding
Utility AMINetwork
ZigBeeHAN
Energy ServicesPortal
(Electric Meter or Gateway)
HVACSystem Load Control
Device
ProgrammableCommunicatingThermostat (PCT)
In-HomeDisplay
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ZigBee AMI in Europe.
The city of Gothenburg has the worlds
largest ZigBee network deploying(AMM) System for 270,000 homes.
255,000 Meters (Electrical) out of260,000 already installed
App. 8000 Concentrators
17 repeaters actually used 7000 specified
9 jumps identified, can do 18, have setlimit to 10
Infrastructure built to handle 1.1 millionmeters
New Services (among others)
Security Alarm
Remote Disconnect
ZigBee locks
Control of street lamps
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ZigBee Health CareJune 2009 Continua adopts ZigBee
Continua's selection of ZigBee HealthCare
follows a rigorous technical review andseeing first hand the ability of ZigBee HealthCare to meet the requirements set forth by
the Continua Health Alliance"
Rick Cnossen, Continua Health Alliancepresident and CEO
Three main opportunities
Independence for the PhysicallyChallenged and Aging
Chronic Disease Management
Health and Wellness
Full support for IEEE 11073 device
specialization profiles Glucose meter, Pulse oximeter,
Electrocardiograph, weight scale,Thermometer, Blood Pressuremonitor, respirometer
Non-medical devices
including social alarm device, personalactivity monitor, pill minder, independentliving activity hub, fitness equipment
In home data management such asbedside/desktop health displays. Displayon TV via RF4CE
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How to add ZigBee to your design
Add ZigBee easily by usingZigBee Modules
Get your wireless solutions tomarket faster
ZigBee without specialist RF &embedded code skills
All functionality of PRO meshing
technology can be accesses through AT
command layer.
AT+EN Establish PAN
AT+SN Scan Network for other nodes
AT+JN Join next best network
Reduce engineering time
Reduce design risks and focus onyour core strengths.
EM250 or EM357 32 bit ARM Cortex
M3
Up to 192k of Flash, 12k of RAM
109dB link Budget
19 mm x 25 mm x 3 mm
Chip Antenna & U.FL coax connector
options
ETRX3 100up Euro 12.75
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Telegesis ETRX evolution
ETRX1EM2420 +Atmel ATMega128L
Original design first UKZigBee module and one ofonly five in the world .Introduced 2006
37.75mm x 20.5mm
ETRX2Ember EM250 solution
128k flash, 5kbytesSRAM XAP16b Micro
37.75mm x 20.5mm
~35mA TX/RX
>1uA in deep sleepmode with self wake
ETRX3EM351 &357
32 bit ARM Cortex
Up to 192k flash +12k RAM
19mm x 25mm
~ 20mA TX/RX
800nA or 400nAdeep sleep
Past
Present
Future
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ZigBee Standards- Looking Forward
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Why a ZigBee IP stack?
The US Congress suggested it in relation toStimulus Funding and Utilities now requiring it as
part of their future networks.
What will most likely be in it? MAC 15.4.2006 with MAC security 6lowPAN packet format and fragmentation ROLL routing
Plus other features essential to effective sensornetworks
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ZigBee in Summary
Standard protocol developed and supported by over 300companies (today)around the world
ZigBee meets key market needs
Reliable
Multiple channels, demonstrated interference tolerance No new wires
Easy to install and maintain
mesh, self organizing, self healing
Secure Ability to scale to many hundreds of nodes
Long battery life (years on a AA)
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Talk to us about ZigBee
Texim HollandMels LiefaardFAE Communication ProductsTexim Europe B.V.Elektrostraat 17NL - 7483
PG HAAKSBERGENPhone +31 53 57 33 238Mobile +31 6 22 30 [email protected]
www.texim-europe.com
Telegesis UKDave BlissettAbbey Barn Business CentreAbbey Barn LaneHigh WycombeBucks HP10 9QQ
Phone +44 (0)1494 510199Mobile: +44 (0)7919 [email protected]: d.blissett
mailto:[email protected]://www.texim-europe.com/mailto:[email protected]:[email protected]://www.texim-europe.com/http://www.texim-europe.com/http://www.texim-europe.com/mailto:[email protected]:[email protected]:[email protected] -
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Cant get enough?
Download this Presentation.
A .pdf of this presentation and mp-3
will be available on:
www.telegesis.com/evoluonseminar
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Please visit us atwww.telegesis.com
Thank you!
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