![1
The Web Sensor
Gateway Architecture
for ZIGBEE
Milan Ganesh
[1JS07EC054]](https://image.slidesharecdn.com/51670063-zigbee-221109174953-846258e3/85/zigbee-pptx-1-320.jpg)
zigbee.pptx
- 1. 1 The Web Sensor Gateway Architecture for ZIGBEE Milan Ganesh [1JS07EC054]
- 2. ZigBee is the set of specs built around the IEEE 802.15.4 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. 2
- 3. 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. November 9, 2022 4
- 5. 868MHz / 915MHz PHY 2.4 GHz 868.3 MHz Channel 0 Channels 1-10 Channels 11-26 2.4835 GHz 928 MHz 902 MHz 5 MHz 2 MHz 2.4GHz PHY 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)
- 6. 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 w/o power amp
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- 9. 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 9
- 10. Configure IP approach Internet over WSN approach WSN over Internet approach 10
- 11. Connecting Heterogeneous Networks Web-Sensor Gateway Architecture Control and Data Exchange Process 11
- 13. Gateway consists of three parts: Zigbee/IEEE802.15.4 protocol stack Embedded TCP/IP protocol stack gateway translation layer 13
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- 15. 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 15
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- 17. Setting event flags Event polling 17
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- 19. Node Model in OPNET Process Model in OPNET 19 Two Models for Gateway
- 20. 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 20
- 21. November 9, 2022 Narayana Swamy 21
- 22. 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, 22
- 24. PERSONAL HEALTH CARE HOME AUTOMATION CONSUMER ELECTRONICS TV VCR DVD/CD Remote control security HVAC lighting closures PC & PERIPHERALS consoles portables educational TOYS & GAMES INDUSTRIAL & COMMERCIAL monitors sensors automation control mouse keyboard joystick monitors diagnostics sensors
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