12-07-2013, 04:10 PM
ZigBee Overview
[attachment=56580]
Wireless Sensor Network
Requirements
Large networks - large number of devices and large
coverage area
Form networks autonomously and operate very
reliably without any operator intervention
Very long battery life (years off of a AA cell)
Standardized protocols for interoperability
Very low infrastructure cost (low device & setup
costs)
Very low complexity and small size
Device data rate and QoS needs are low
ZigBee Alliance
Alliance provides
Stack, application profiles, Gateway and Bridge and Commissioning
tools specifications.
Compliance, Certification testing and hosting Inter-op events
Branding and Logo
ZigBee Stack is built over IEEE 802.15.4 MAC/PHY
Beaconing, GTS and MAC Security are not used by ZigBee
Some features of 15.4b MAC are required by ZigBee
Thirteen promoter companies
TI, Ember, Freescale, Siemens, Mitsubishi, Motorola, Philips,
Samsung, ST Micro Electronics, Huawei, Schneider Electric, BM
Group
A rapidly growing list (over 200) of industry leaders
Companies include chip suppliers, OEMs, test equip manufacturers,
design service providers and end users
Result is a set of recognizable, interoperable solutions
ZigBee Architecture Objectives
ZigBee architecture needs to support all target environments
and applications that are in the scope of ZigBee
Define the ZigBee network and stack models
Define ZigBee device types and core functions
Define layers / modules with their interfaces, and services
Provide the framework to allow a separation of concerns
for the specification, design, and implementation of ZigBee
devices
Enable out-of-the-box interoperability through the definition of
application profiles
ZigBee Stack Profiles
Agreement of stack parameters, settings and policies
for a family of application profiles (including private
application profiles)
Current stack profiles:
ZigBee (Previously known as Home controls Stack Profile)
• Supports Home Automation application profiles
ZigBee Pro
• Industrial strength stack
• Supports Commercial Building Automation, HVAC and Industrial
Plant Monitoring application profiles
Design and Implementation
Challenges
Specification interpretation and multiple design choices
Strict Timing constraints (Especially NWK and MAC Layers)
Tight Code/Data Size restriction due to limited FLASH/RAM
space available on micro-controllers
Features in silicon vs. software
Faster code execution vs. less code space
Protocol feature testing and system testing complexities
Debugging stack and application with various power save modes
Product Packaging/Library Options and Testing
[attachment=56580]
Wireless Sensor Network
Requirements
Large networks - large number of devices and large
coverage area
Form networks autonomously and operate very
reliably without any operator intervention
Very long battery life (years off of a AA cell)
Standardized protocols for interoperability
Very low infrastructure cost (low device & setup
costs)
Very low complexity and small size
Device data rate and QoS needs are low
ZigBee Alliance
Alliance provides
Stack, application profiles, Gateway and Bridge and Commissioning
tools specifications.
Compliance, Certification testing and hosting Inter-op events
Branding and Logo
ZigBee Stack is built over IEEE 802.15.4 MAC/PHY
Beaconing, GTS and MAC Security are not used by ZigBee
Some features of 15.4b MAC are required by ZigBee
Thirteen promoter companies
TI, Ember, Freescale, Siemens, Mitsubishi, Motorola, Philips,
Samsung, ST Micro Electronics, Huawei, Schneider Electric, BM
Group
A rapidly growing list (over 200) of industry leaders
Companies include chip suppliers, OEMs, test equip manufacturers,
design service providers and end users
Result is a set of recognizable, interoperable solutions
ZigBee Architecture Objectives
ZigBee architecture needs to support all target environments
and applications that are in the scope of ZigBee
Define the ZigBee network and stack models
Define ZigBee device types and core functions
Define layers / modules with their interfaces, and services
Provide the framework to allow a separation of concerns
for the specification, design, and implementation of ZigBee
devices
Enable out-of-the-box interoperability through the definition of
application profiles
ZigBee Stack Profiles
Agreement of stack parameters, settings and policies
for a family of application profiles (including private
application profiles)
Current stack profiles:
ZigBee (Previously known as Home controls Stack Profile)
• Supports Home Automation application profiles
ZigBee Pro
• Industrial strength stack
• Supports Commercial Building Automation, HVAC and Industrial
Plant Monitoring application profiles
Design and Implementation
Challenges
Specification interpretation and multiple design choices
Strict Timing constraints (Especially NWK and MAC Layers)
Tight Code/Data Size restriction due to limited FLASH/RAM
space available on micro-controllers
Features in silicon vs. software
Faster code execution vs. less code space
Protocol feature testing and system testing complexities
Debugging stack and application with various power save modes
Product Packaging/Library Options and Testing