Matt Maupin Freescale Semiconductor

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Presentation Transcript

ZigBee™: Wireless Control Made Simple: 

ZigBee™: Wireless Control Made Simple Matt Maupin Technical Marketer Track: ZigBee Wireless & Mobile WorldExpo NTC Toronto, Canada

Agenda: 

Agenda ZigBee Market Overview Wireless Technology Market Applications Market Forecast IEEE® STD 802.15.4 Primer Robust and Reliable, Standards-based radio and protocol ZigBee Overview Mission and Objectives Organization Feature Set Application Examples ZigBee Networking Basics

Where Does ZigBee Fit?: 

Where Does ZigBee Fit? Range Peak Data Rate Closer Farther Slower Faster UWB Wireless Data Applications Sources: WRH + Co Wireless Video Applications IrDA 802.11g 802.11b 802.11a 2.5G/3G Bluetooth™ ZigBee™ Wireless Sensors Wireless Networking Wi-Fi®

ZigBee Alliance: 

ZigBee Alliance

ZigBee Mission : 

ZigBee Mission The ZigBee Alliance is an association of companies working together to enable reliable, cost-effective, low-power, wirelessly networked, monitoring and control products based on an open global standard

ZigBee Alliance: 

ZigBee Alliance ZigBee Alliance: Consortium of >150 companies Freescale is one of 8 World-Class Promoter Companies with a total market cap of more than US $150B Over 140 Participant and adopter companies including over a dozen OEMs with a market cap of US $200B Solid Hardware/Software Platform base available now Silicon ready for volume production 1.0 Specification approved in December Home Control Lighting Profile included HVAC, security, home automation and industrial process control will follow Specification available to public in April 2005 Interoperability Program Freescale’s product had passed compliance testing Certification Program ready in Q2 2005

ZigBee: 

ZigBee ZigBee is designed to be a low power, low cost, low data rate, wireless solution. ZigBee relies upon the robust IEEE 802.15.4 PHY/MAC to provide reliable data transfer in noisy, interference-rich environments ZigBee layers on top of 15.4 with Mesh Networking, Security, and Applications control ZigBee Value Propositions Addresses the unique needs of most remote monitoring and control network applications Infrequent, low rate and small packet data Enables the broad-based deployment of wireless networks with low cost & low power solutions Example: Lighting, security, HVAC, Supports peer-to-peer, star and mesh networks Monitor and sensor applications that need to have a battery life of years on alkaline batteries Example – security systems, smoke alarms

Protocol Stack Features: 

Protocol Stack Features ZigBee Based upon the robust, reliable, international IEEE 802.15.4 standard IEEE STD 802.15.4® Designed by Motorola, Philips and other companies to supply the radio and protocol, allowing the designer to concentrate on the application and their customers’ needs PHY LAYER MAC LAYER NETWORK/SECURTIY LAYERS APPLICATION FRAMEWORK APPLICATION/PROFILES IEEE ZigBee Alliance Platform Application ZigBee Platform Stack Silicon ZigBee

ZigBee is Mesh Networking: 

ZigBee is Mesh Networking

Slide10: 

Network Topology Models PAN coordinator (PANC) Full Function Device (FFD,Router) Reduced Function Device (RFD) Star Mesh Cluster Tree

ZigBee is Mesh Networking: 

ZigBee is Mesh Networking ZigBee Coordinator ZigBee Router ZigBee End Device ZigBee Device Associations

ZigBee Markets and Applications: 

ZigBee Markets and Applications

ZigBee Wireless Markets and Applications: 

ZigBee Wireless Markets and Applications BUILDING AUTOMATION Security, HVAC, AMR, Lighting Control, Access Control CONSUMER ELECTRONICS Remote Control PERSONAL HEALTH CARE Patient monitoring INDUSTRIAL CONTROL Asset Mgt, Process Control, Energy Mgt RESIDENTIAL/ LIGHT COMMERCIAL CONTROL Security, HVAC, Lighting Control, Access Control PC & PERIPHERALS Mouse, Keyboard, Joystick

802.15.4/ZigBee Market Size: 

802.15.4/ZigBee Market Size Strong growth in areas such as wireless sensors will help fuel the growth of 802.15.4 and ZigBee Harbor Research reports that by 2008, 100 million wireless sensors will be in use On World reports that by 2010, more then 500 million nodes will ship for wireless sensor applications ABI Research forecasts shipments of ZigBee devices in 2005 at about 1 million, growing to 80 million units by the end of 2006 In-Stat 2004 report has an aggressive forecast of over 150 million annual units of 802.15.4 and ZigBee chipsets by 2008

IEEE 802.15.4 Overview: 

IEEE 802.15.4 Overview

IEEE 802.15.4 Basics: 

IEEE 802.15.4 Basics Simple packet data protocol for lightweight wireless networks Released in May 2003 Channel Access is via Carrier Sense Multiple Access with collision avoidance and optional time slotting Message acknowledgement and an optional beacon structure Multi-level security Works well for Long battery life, selectable latency for controllers, sensors, remote monitoring and portable electronics Configured for maximum battery life, has the potential to last as long as the shelf life of most batteries

Normal Channel Occupancy: 

Normal Channel Occupancy 802.11 DSSS

IEEE 802.15.4 MAC: 

IEEE 802.15.4 MAC Employs 64-bit IEEE & 16-bit short addresses Ultimate network size can be >> nodes (more than we’ll probably need…) Using local addressing, simple networks of more than 65,000 (2^16) nodes can be configured, with reduced address overhead Three devices specified Network Coordinator Full Function Device (FFD) Reduced Function Device (RFD) Simple frame structure Reliable delivery of data Association/disassociation AES-128 security CSMA-CA channel access Optional superframe structure with beacons Optional GTS mechanism

Freescale 802.15.14 Radio Example: 

Freescale 802.15.14 Radio Example Key Features IEEE® 802.15.4 Compliant 2.4GHz 16 selectable channels 250Kbps Data Rate 250Kbps 0-QPSK DSSS Multiple Power Saving Modes Hibernate 2.3uA Doze 35uA Idle 500uA RF Data Modem Up to 7 GPIO SPI Interface to Micro Internal Timer comparators (reduce MCU resources) -16.6dBm to +3.6dBm output power Software selectable On-chip regulator Up to -92 Rx sensitivity at 1% PER 2V to 3.4 operating voltage -40˚C to +85˚C operating temperature Low external component count Requires single 16Mhz Xtal (Auto Trim) 5mmx5mm QFN-32 Lead-Free

ZigBee Technology Overview: 

ZigBee Technology Overview

ZigBee Architecture Objectives : 

ZigBee Architecture Objectives Enables cost-effective, low power, reliable devices for monitoring and control ZigBee’s architecture developed to target environments and applications best suited to the technology Provide a platform and implementation for wirelessly networked devices Ensure interoperability through the definition of application profiles Define the ZigBee network and stack models Provide the framework to allow a separation of concerns for the specification, design, and implementation of ZigBee devices Allow future extension of ZigBee

ZigBee Feature Set: 

ZigBee Feature Set ZigBee V1.0 Ad-hoc self forming networks Mesh, Cluster Tree and Star Logical Device Types Coordinator, Router and End Device Applications Device and Service Discovery Messaging with optional responses Home Controls Lighting Profile General mechanism to define private Profiles Security Symmetric Key with AES-128 Authentication and Encryption at MAC, NWK and Application levels Master Keys, Network Keys and Link Keys Qualification Conformance Certification (Platform and Profile) Interoperability Events

How A ZigBee Network Forms: 

How A ZigBee Network Forms Devices are pre-programmed for their network function Coordinator scans to find an unused channel to start a network Router (mesh device within a network) scans to find an active channel to join, then permits other devices to join End Device will always try to join an existing network Devices discover other devices in the network providing complementary services Service Discovery can be initiated from any device within the network Devices can be bound to other devices offering complementary services Binding provides a command and control feature for specially identified sets of devices

ZigBee Stack Architecture Basics: 

ZigBee Stack Architecture Basics Addressing Every device has a unique 64 bit MAC address Upon association, every device receives a unique 16 bit network address Only the 16 bit network address is used to route packets within the network Devices retain their 16 bit address if they disconnect from the network, however, if the LEAVE the network, the 16 bit address is re-assigned NWK broadcast implemented above the MAC: NWK address 0xFFFF is the broadcast address Special algorithm in NWK to propagate the message “Best Effort” or “Guaranteed Delivery” options Radius Limited Broadcast feature

How a ZigBee Network Forms?: 

How a ZigBee Network Forms?

ZigBee Network Model: 

ZigBee Network Model ZigBee End Device (RFD or FFD) ZigBee Router (FFD) ZigBee Coordinator (FFD) Mesh Link Star networks support a single ZigBee coordinator with one or more ZigBee End Devices (up to 65,536 in theory) Mesh network routing permits path formation from any source device to any destination device

Wireless Networking Basics: 

Wireless Networking Basics Network Scan Device scans the 16 channels to determine the best channel to occupy. Creating/Joining a PAN Device can create a network (coordinator) on a free channel or join an existing network Device Discovery Device queries the network to discover the identity of devices on active channels Service Discovery Device scans for supported services on devices within the network Binding Devices communicate via command/control messaging

Network Pieces –PAN Coordinator: 

Network Pieces –PAN Coordinator PAN Coordinator “owns” the network Starts it Allows other devices to join it Provides binding and address-table services Saves messages until they can be delivered And more… could also have i/o capability A “full-function device” – FFD Mains powered

Network Pieces - Router: 

Network Pieces - Router Routers Routes messages Does not own or start network Scans to find a network to join Given a block of addresses to assign A “full-function device” – FFD Mains powered depending on topology Could also have i/o capability

Network Pieces – End Device: 

Network Pieces – End Device End Device Communicates with a single device Does not own or start network Scans to find a network to join Can be an FFD or RFD (reduced function device) Usually battery powered

Summary: 

Summary

Summary: 

Summary IEEE 802.15.4 and ZigBee Allows Designer to concentrate on end application Silicon vendors and ZigBee Alliance take care of transceiver, RF channel and protocol, ZigBee “look and feel” Reliable and robust communications PHY and MAC outperform all known non-standards-based products currently available Flexible network architectures Very long primary battery life (months to years to decades) Low system complexity for the OEM More Information Freescale: www.freescale.com/zigbee ZigBee: www.zigbee.org