2. 1.WHAT IS A PROTOCOL?
2.ZIGBEE HOW IT CAME?
3.WHAT IS ZIGBEE TECHNOLOGY?
4.THE NEED of ZigBee
5.SUCCESS FACTORS
6.Zigbee Architecture
7.Application Layer
8.ZIGBEE TOPOLOGIES
9.ZIGBEE OPERATING MODES
10.ZIGBEE FOR HOME UTILITY MANAGEMENT
11.Applications of Zigbee Technology
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CONTENT:-
3. WHAT IS A PROTOCOL?
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A PROTOCOL DEFINES RULES AND CONVENTIONS FOR COMMUNICATION BETWEEN NETWORK DEVICES.
(AN AGREEMENT ABOUT HOW TO DO SOMETHING.)
THIS ENABLES COMPUTERS AND SOFTWARE BUILT BY DIFFERENT PEOPLE TO BE ABLE TO COMMUNICATE
IN THE SAME LANGUAGE.
EXAMPLES THAT WE HAVE SEEN: –
FILE TRANSFER PROTOCOL (FTP) – FILE TRANSFER
SIMPLE MAIL TRANSFER PROTOCOL (SMTP) – EMAIL
INTERNET PROTOCOL (IP) – PACKETS ACROSS THE INTERNET
ZIGBEE-WIRELESS TECHNOLOGY
4. ZIGBEE HOWIT CAME:-
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BEE ZIGZAG
WHEN A BEE FINDS A NECTAR-BEARING FLOWER, THE BEE BRINGS THE SAMPLE BACK TO HIS HIVE AND
DANCES IN A ZIGZAG PATTERN TO COMMUNICATE THE DISTANCE AND THE DIRECTION OF THE FOOD
SOURCE TO OTHER MEMBERS OF THE COLONY
ZIGBEE
5. WHAT IS ZIGBEE TECHNOLOGY?
ZIGBEE COMMUNICATION IS SPECIALLY BUILT FOR CONTROL AND SENSOR NETWORKS ON IEEE 802.15.4
STANDARD FOR WIRELESS PERSONAL AREA NETWORKS (WPANS).
THESE ZIGBEE’S WPANS OPERATE AT 868 MHZ, 902-928MHZ AND 2.4 GHZ FREQUENCIES.
ZIGBEE TECHNOLOGY IS HIGH LEVEL COMMUNICATION.
ZIGBEE IS LOW-COST AND LOW-POWERED MESH NETWORK WIDELY DEPLOYED FOR CONTROLLING AND
MONITORING APPLICATIONS WHERE IT COVERS 10-100 METERS WITHIN THE RANGE.
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LOW POWER CONSUMPTION
6 MONTHS TO 5 YEARS BATTERY LIFE FOR MOST
APPLICATIONS
LOW COST
AT LEAST HALF THE COST OF BLUETOOTH
SOLUTIONS
HIGH DENSITY OF NODES PER NETWORK
250 NODES PER NETWORK, MULTIPLE CO-LOCATED
NETWORKS
DATA RATE REQUIREMENTS
FEW BITS TO 250KBPS SUFFICIENT
SIMPLE PROTOCOL, GLOBAL IMPLEMENTATION
2.4GHZ
The Need forZigBee
7. LOW COST
DATA TYPE SUPPORT
EASE OF INSTALLATION
RELIABLE DATA TRANSFER
SHORT RANGE OPERATION
REASONABLE BATTERY LIFE
UNLICENSED BAND
UNRESTRICTED GEOGRAPHICAL USE
GLOBAL IMPLEMENTATION
GOVERNMENTAL REGULATIONS
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SUCCESS FACTORS
8. Zigbee Architecture
ZIGBEE SYSTEM STRUCTURE CONSISTS OF THREE DIFFERENT TYPES OF DEVICES SUCH AS ZIGBEE
COORDINATOR, ROUTER AND END DEVICE.
AN END DEVICE CAN BE A SMART THERMOSTAT, TELEVISION, DOOR, CCTV CAMERAS, ETC
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ZIGBEE SUPPORTS DIFFERENT NETWORK CONFIGURATIONS FOR MASTER TO MASTER OR MASTER TO SLAVE
COMMUNICATIONS.
11. PHYSICAL LAYER:- THIS LAYER DOES MODULATION AND DEMODULATION OPERATIONS UP ON TRANSMITTING AND
RECEIVING SIGNALS RESPECTIVELY. THIS LAYER’S FREQUENCY, DATE RATE AND NUMBER OF CHANNELS ARE GIVEN BELOW.
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MAC LAYER:- THIS LAYER IS RESPONSIBLE FOR RELIABLE TRANSMISSION OF DATA BY ACCESSING DIFFERENT NETWORKS
WITH THE CARRIER SENSE MULTIPLE ACCESS COLLISION AVOIDANCE (CSMA). THIS ALSO TRANSMITS THE BEACON
FRAMES FOR SYNCHRONIZING COMMUNICATION.
NETWORK LAYER:-THIS LAYER TAKES CARE OF ALL NETWORK RELATED OPERATIONS SUCH AS NETWORK SETUP, END
DEVICE CONNECTION AND DISCONNECTION TO NETWORK, ROUTING, DEVICE CONFIGURATIONS, ETC.
APPLICATION SUPPORT SUB-LAYER:- THIS LAYER ENABLES THE SERVICES NECESSARY FOR ZIGBEE DEVICE OBJECT AND
APPLICATION OBJECTS TO INTERFACE WITH THE NETWORK LAYERS FOR DATA MANAGING SERVICES. THIS LAYER IS
RESPONSIBLE FOR MATCHING TWO DEVICES ACCORDING TO THEIR SERVICES AND NEEDS.
APPLICATION FRAMEWORK:- IT IS RESPONSIBLE FOR DETECTING, INITIATING AND BINDING OTHER DEVICES TO THE
NETWORK
12. ZIGBEE TOPOLOGIES
ZIGBEE SUPPORTS SEVERAL NETWORK TOPOLOGIES;HOWEVER, THE MOST COMMONLY USED
CONFIGURATIONS ARE STAR, MESH AND CLUSTER TREE TOPOLOGIES. ANY TOPOLOGY CONSISTS OF ONE
OR MORE COORDINATOR.
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13. ZIGBEEOPERATINGMODES
ZIGBEE TWO WAY DATA IS TRANSFERRED IN TWO MODES: NON-BEACON MODE AND BEACON MODE.
BEACONMODE:
IN A BEACON MODE, THE COORDINATORS AND ROUTERS
CONTINUOUSLY MONITOR ACTIVE STATE OF INCOMING DATA
HENCE MORE POWER IS CONSUMED.
BEACON SEND PERIODICALLY
COORDINATOR AND END DEVICE CAN GO TO SLEEP
LOWEST ENERGY CONSUMPTION
PRICISE TIMING NEEDED
BEACON PERIOD (MS-M)
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NON-BEACONMODE:
IN A NON BEACON MODE, WHEN THERE IS NO DATA COMMUNICATION FROM END DEVICES, THEN THE
ROUTERS AND COORDINATORS ENTER INTO SLEEP STATE.
COORDINATOR/ROUTERS HAVE TO STAY AWAKE (ROBUST POWER SUPPLY NEEDED)
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ZIGBEE FOR HOME UTILITY MANAGEMENT
• ZIGBEE PROVIDES COMMUNICATION AND DATA EXCHANGE BETWEEN THE UTILITY AND HOME AREA
NETWORK
• DATA CAN BE ACCESSED VIA THE INTERNET
