1. The Web Sensor Gateway Architecture for ZIGBEE
Milan Ganesh
[1JS07EC054]

2. What is ZIGBEE?
ZigBee is the set of specs built around the IEEE wireless protocol
Intended for 2.45 Ghz , 868 Mhz and 915 Mhz Band.
Low in cost ,complexity & power consumption as compared to competing technologies.
Intended to network inexpensive devices .
Data rates touch 250Kbps for 2.45Ghz ,40 Kbps 915Mhz and 20Kbps for 868Mhz band.

3. The need for ZigBee Standard in a fragmented market
9/21/2018
The need for ZigBee
Standard in a fragmented market
Many proprietary solutions, interoperability issues
Simple protocol, Global Implementation 2.4GHz
Low Power consumption
6 months to more than 5 years battery life for most applications
Low Cost
High density of nodes per network
250 nodes per network, multiple co-located networks
Data rate requirements
Few bits to 250kbps sufficient

4. 802 wireless space
September 21, 2018

5. Frequencies and Data Rates
9/21/2018
Frequencies and Data Rates
ISM Worldwide 250 kbps 16
2.4 GHz
ISM Europe 20 kbps 1
868 MHz
ISM America 40 kbps 10
915 MHz
BAND COVERAGE DATA RATE # OF CHANNEL(S)
2 MHz
Channel 0
868MHz / 915MHz
PHY
Channels 1-10
868.3 MHz
902 MHz
928 MHz
5 MHz
Channels 11-26
2.4GHz
PHY
2.4 GHz
GHz

6. ZigBee/Bluetooth Comparison
9/21/2018
ZigBee/Bluetooth Comparison
Bluetooth ZigBee
AIR INTERFACE FHSS DSSS
PROTOCOL STACK 250KB 28KB
BATTERY rechargeable non-rechargeable
DEVICES/NETWORK 8 2^16
LINK RATE 1Mbps 250 kbps
RANGE ~10 meters ~30 meters
w/o power amp

7. Zigbee Protocol Stack

8. 9/21/2018
Promoters
Participants

9. Internet – Zigbee gateway
Gateway : Network point that acts as an entrance to another network.
Basic functionalities :
a) query-distribution
b) data-aggregation
c) message-conversion
Internet provides flexibility and convenience of access

10. Implementing web-sensor gateway
Configure IP approach
Internet over WSN approach
WSN over Internet approach

11. The Proposed Web-Sensor gateway
Connecting Heterogeneous Networks
Web-Sensor Gateway Architecture
Control and Data Exchange Process

12. Zigbee networks and Internet Communication System
Connecting Heterogeneous Networks
Zigbee networks and Internet Communication System

13. Gateway consists of three parts:
Zigbee/IEEE protocol stack
Embedded TCP/IP protocol stack
gateway translation layer

14. Web-sensor gateway protocol architecture

15. Control and Data Exchange
Initialize embedded web-server
Client creates socket and initializes
Establish connection
Three way Handshake
Send request
Request_to_Send
Retrieve result
Response_to_Request
Connection termination

16. Control and data transfer

17. Main events
Setting event flags
Event polling

18. General APS Frame Format
This information can then be processed remotely by a web analytics company,

19. OPNET Simulation Model
Two Models for Gateway
Node Model in OPNET
Process Model in OPNET

20. Node model in OPNET Set of interconnected modules
Gateway translation layer module
Connects web-server application layer and zigbee AP application layer
Interface between wired network and wireless network

21. Narayana Swamy
September 21, 2018

22. Process model in OPNET
The packet translation process details are described further in a process model.
In OPNET, the process domain defines the logic flow and behavior for programmable module,

23. State Transition Diagram
extract_ip
encap_to_zb
PACKET_IS_ZIGBEE
PACKET_IS_IPV4
default
idle
init
test
PACKET_IS_ZIGBEE
PACKET_IS_IPV4
extract_zb
encap_to_ip

24. Applications monitors sensors TV VCR automation DVD/CD control
INDUSTRIAL & COMMERCIAL
CONSUMER ELECTRONICS
TV VCR
DVD/CD
Remote control
PERSONAL HEALTH CARE
PC & PERIPHERALS
monitors
diagnostics
sensors
mouse
keyboard
joystick
HVAC---Heating, ventilating, and air conditioning (供暖,通風,空調)
ZigBee目前的應用有：
1. 工商業的自動控制系統
2. 個人健康診斷
3. 攜帶型娛樂工具
4. 家庭消費電子設備遠距控制
5. 個人電腦的周邊無線控制
6. 居家安全與自動監控
HOME AUTOMATION
TOYS &
GAMES
consoles portables
educational
security
HVAC
lighting
closures

25. MODULES

26. Thank you…