1 / 33

L ow rate WPAN standard

Yan Zhang Cheng Li Brian Kirkpatrick. L ow rate WPAN standard. Open Systems Interconnection Model. Zigbee Networks & Devices. Layout : s tar , t ree , m esh Nodes : coordinator, router, end device Algorithm considers both signal quality and hop count for each route.

ghazi
Download Presentation

L ow rate WPAN standard

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Yan Zhang • Cheng Li • Brian Kirkpatrick Low rate WPAN standard

  2. Open Systems Interconnection Model

  3. Zigbee Networks & Devices • Layout: star, tree, mesh • Nodes: coordinator, router, end device • Algorithm considers both signal quality and hop count for each route. • Avoids recalculating route • Avoids resending data

  4. Zigbee Multiplexing • Orthogonal Signaling • BPSK / QPSK • Allows multiple nodes to talk at the same time • http://en.wikipedia.org/wiki/Phase-shift_keying • CSMA-CA • Carrier Sense Multiple Access - Collision Avoidance • Listen: • If someone's talking, wait for some random t < 2^n • Otherwise, your turn. • Battery Life Extension ( BLE ) • 'n' is limited to n < 2 • Reciever can be awake for a shorter time

  5. Frequency Bands

  6. Wireless Standard Comparison

  7. XBee 802.15.4 RF Modules • http://www.digi.com/products/wireless-wired-embedded-solutions/zigbee-rf-modules

  8. XBee 802.15.4 RF Modules • Ideal for low-power, low-cost applications • XBee-PRO modules are power-amplified versions • Fully interoperable with other XBee products

  9. XBee vs XBee-PRO • http://www.sparkfun.com/datasheets/Wireless/Zigbee/XBee-Datasheet.pdf

  10. XBee vs XBee-PRO • http://www.sparkfun.com/datasheets/Wireless/Zigbee/XBee-Datasheet.pdf

  11. Why Xbee over bluetooth • Multi-point networks • Low power in specific conmunicaitonscenarios

  12. Bluetooth SMD RN-41 $25 Baud rate speeds: 1200bps up to 921Kbps Class 1 radio, 100m distance 15dBmtransmitter power output -80dBm receivesensitivity XBee vs Bluetooth SMD Module • XBee • $23 • Baud rate speeds: 1200bps - 250 Kbps • Indoor/Urban: up to 30moutdoor line-of-sight: up to 90m • 1 mW (0dBm) transmitter power output • 1 mW (0dBm) receive sensitivity

  13. XBee vs Bluetooth SMD Module • http://www.rovingnetworks.com/files/resources/Bluetooth-RN-41-DS.pdf

  14. XBee vs Bluetooth SMD Module • Scenario 1: • AAA Alkaline battery (1200 mAh) as power supply • Normal mode and default settings • Transit 1%, receive 1%, connected 3%，sleep 95% • XBee: • 1200 * 2 / (35* 0.01 + 50 * 00.1+ 50 * 0.03 + 0.01 * 0.95) • = 1017 h • Bluetooth SMD: • 1200 * 2 / (65 * 0.01 + 35* 0.01+ 30 * 0.03 + 25 * 0.95) • =94h

  15. XBee vs Bluetooth SMD Module • Scenario 2: • AAA Alkaline battery (1200 mAh) as power supply • Normal mode and default settings • Transit 1%, receive 1%, connected 95%，sleep 3% • XBee: • 1200 * 2 / (35* 0.01 + 50 * 0.01+ 50 * 0.95 + 0.01 * 0.3) • = 50 h • Bluetooth SMD: • 1200 * 2 / (65 * 0.01 + 35* 0.01+ 30 * 0.95 + 25 * 0.3) • = 65 h

  16. XBee vs Bluetooth SMD Module • http://www.rovingnetworks.com/files/resources/Bluetooth-RN-41-DS.pdf

  17. Easy to use • Mount into a receptacle • Free X-CTUSoftware • http://www.cooking-hacks.com/index.php/blog/tutorial-arduino-deluxe-pack

  18. XBee and GPS with Arduino UNO • Read the data from the GPS module and transmit it through the XBee 802.15.4 . • http://www.cooking-hacks.com/index.php/blog/tutorial-arduino-deluxe-pack

  19. ZigBee Applications security HVAC AMR lighting control accesscontrol TV VCR DVD/CD remote ZigBee Wireless Control that Simply Works PC & PERIPHERALS PERSONAL HEALTH CARE patient monitoring fitness monitoring mouse keyboard joystick TELECOM SERVICES INDUSTRIAL CONTROL HOME CONTROL asset mgt process control environmental energy mgt security HVAC lighting control access control irrigation m-commerce info services object interaction (Internet of Things)

  20. Application 1. Health Care 2. Remote Control 3. Telecom Services 4. Home Automation

  21. Chronic Disease Monitoring From ZigBee Alliance, health care white paper. https://docs.zigbee.org/zigbee-docs/dcn/09-4962.pdf

  22. Application 1. Health Care 2. Remote Control 3. Telecom Services 4. Home Automation

  23. Multipoint Remote Control

  24. Compare with infrared-based (IR) remote controls • Longer Battery Life • Wider Range • Better Interference • Better Compatibility • Higher Price • Lower Data Rate

  25. Application 1. Health Care 2. Remote Control 3. Telecom Services 4. Home Automation

  26. Telecom Services

  27. Application 1. Health Care 2. Remote Control 3. Telecom Services 4. Home Automation

  28. Home Automation Home Heartbeat

  29. Conclusion • Low power, low range, low cost wireless protocol • Uses DSSS and addressing to network • Xbee and Xbee-pro • Xbee vs Bluetooth modules • Particularly suited for: • Many to Many • Extremely low power burst

  30. References • http://www.zigbee.org/Standards/Overview.aspx • http://en.wikipedia.org/wiki/Zigbee • http//en.wikipedia.org/wiki/IEEE_802.15.4 • http//www.zigbee.org/ • http://zone.ni.com/ • http://www.digi.com/products/wireless-wired-embedded-solutions/zigbee-rf-modules/point-multipoint-rfmodules/xbee-series1-module#overview

  31. Question?

More Related