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zigbee Presentation Transcript
1.ZIGBEE
2.Presentation Outline What ZigBee is ? What ZigBee does ? How ZigBee works ? ZigBee Uses Application Sectors
3.What is ZigBee ? Named after erratic, zig-zagging patterns of bees between the flowers. ZigBee is a standard that defines a set of communication protocols for low-data-rate Short-range wireless networking. Communication Protocol is a description of set of procedures to be followed when communicating. Based on the IEEE 802.15.4 Standard. IEEE standard 802.15.4 intends to offer the fundamental lower network layers of a type of wireless personal area network (WPAN) which focuses on low-cost, low-speed ubiquitous communication between devices . The emphasis is on very low cost communication of nearby devices.
4.ZigBee Aims Low Low data rate Low power consumption Small packet devices
5.ZigBee Frequencies Operates in Unlicensed Bands ISM ( INDUSTRIAL SCIENTIFIC AND MEDICAL) 2.4 GHz Global Band at 250kbps 868 MHz European Band at 20kbps 915 MHz North American Band at 40kbps
6.What Does ZigBee Do? Designed for wireless controls and sensors Operates in Personal Area Networks (PAN’s) and device-to-device networks Connectivity between small packet devices Control of lights, switches, thermostats, appliances, etc. Frames are the basic unit of data transport.
7.How ZigBee Works Topology Star Cluster Mesh Device types Network coordinator routers end devices
8.ZigBee coordinator (ZC): The most capable device, the coordinator forms the root of the network tree and might bridge to other networks. ZigBee Router (ZR): As well as running an application function, a router can act as an intermediate router, passing on data from other devices. ZigBee End Device (ZED): Contains just enough functionality to talk to the parent node (either the coordinator or a router). It cannot relay data from other devices. This relationship allows the node to be asleep a significant amount of the time thereby giving long battery life.
9.How ZigBee Works States of operation Active Sleep Devices Full Function Devices (FFD’s) Reduced Function Devices (RFD’s) Modes of operation Beacon Non-beacon
10.ZigBee Mesh Networking
11.ZigBee Mesh Networking
12.Current ZigBee Uses Environmental Monitoring Agricultural Monitoring Home Automation Still on Horizon
13.Application Sectors
14.CONCLUSION ZigBee has been developed to meet the growing demand for capable wireless networking between numerous low-power devices. It offers long life battery extension and proved to be better wireless technology device. ZigBee demands low data rate applications, and long battery life capability, robust security, 1
15.References ZIGBEE Wireless Networking by Drew Gislason. ZIGBEE Wireless Networks and Transceivers. www.ieeeexplore.ieee.org www.zigbee.org www.wikipedia.com
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