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Home networking with zig bee


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Home networking with zig bee

  1. 1. Prepared by : Eyad R. ManaaSupervised by : Eng. Mahmoud El-Aff The Islamic University of Gaza Computer engineering Department 1 December 23,2010
  2. 2. Outlines Introduction What is ZigBee ? ZigBee Features What does ZigBee do? ZigBee Advantages ZigBee in Homes How a ZigBee Network Works ZigBee Network Configuration Summary 2
  3. 3. Introduction Wireless technologies is already an integral partof our lives. Bluetooth provides connectivity in a short range ofdevices. WiFi is used for local area networks, thus it isconsumes high power. WiMAX provides wide area networking, thus itneeds more power and high cost. But we need in our homes technology thatconsumes low power and low cost and low data rate. 3
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  6. 6.  It is a Technological Standard created for Control and Sensor Networks Based on the IEEE 802.15.4 Standard Designed for low-power and low-data rate applications. Like:  Monitoring applications.  Control applications.  Switching applications. 6
  7. 7.  ZigBee networks has a capacity of connecting more than 65,000 devices through different networking topologies. The data travel through this range from 20Kbps up to 250 Kbps. ZigBee network covers a wide range from 10-40m. Operates in Unlicensed Bands  2.4 GHz band is used worldwide.  868 MHz band is used in Europe.  915 MHz band used in North American. 7
  8. 8. Features IEEE 802.11b Bluetooth ZigBeePower Profile Hours Days Years for end devices Complexity Very Complex Complex SimpleNodes/Master 32 7 64000 Enumeration up to 3 Enumeration up to 10 Latency Enumeration 30ms seconds seconds Range 100 m Typically up to 100m Typically 70m-300mExtendability Roaming possible NO YES Data Rate 11Mbps 1Mbps 250Kbps (Usable ~ 20kbps) Authentication Service Set 128 bit AES and Application Security 64 bit, 128 bit ID (SSID) Layer user defined 8
  9. 9.  Designed for wireless controls and sensors Operates in Personal Area Networks (PAN’s) and device-to-device networks Connectivity between small packet devices Management of lighting, heating and cooling systems from anywhere in the home. 9
  10. 10. Example 10
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  12. 12.  Supports large number of nodes Easy to deploy Multiple vendors Very long battery life Secure (128 bit encryption) Reliable and self healing Low cost Can be used globally (2.4GHz) 12
  13. 13. ZigBee Coordinator (ZC) – One required for each ZB network. – Initiates network formation.ZigBee Router (ZR) – Participates in multihop routing of messages.ZigBee End Device (ZED) – Does not allow association or routing. – Enables very low cost solutions 13
  14. 14.  ZigBee’s Network layer supports three networking topologies: star, mesh, and cluster tree. 14
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  16. 16. - Used in home for the following applications : Light switches and lights . HVAC (Heating, Ventilating, and Air Conditioning) controls and thermostats . Computers, TVs, and other electronic devices . Smoke detectors and other safety equipment . Alarm panels, motion sensors, and other security devices . Electricity, water, and gas meters. 16
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  19. 19. • Network Scan  Device scans the 16 channels to determine the best channel to occupy.• Creating/Joining a PAN  Device can create a network (coordinator) on a free channel or join an existing network• Device Discovery  Device queries the network to discover the identity of devices on active channels• Service Discovery  Device scans for supported services on devices within the network• Binding Devices communicate via command/control messaging 19
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  21. 21.  The name ZigBee is saidto come from the honey beewhich uses a zig-zag typeof dance to communicateimportant information toother hive members. 21
  22. 22.  ZigBee is a technological standard created for control and sensor networks . Based on the IEEE 802.15.4 Standard Designed for low-power and low-data rate applications ZigBee has a wide applications in heath and environment and homes and telecom Management of lighting, heating and cooling systems from anywhere in the home. ZigBee has many advantages as it is easy to deploy, consumes low power, its cost is very low and it is very secure. 22