Difference: BluetoothZigBee (1 vs. 3)

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16 Aug 2010 - Main.AdamK
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West Technology Research Solutions – e-mailed 8-11 from hotmail acct.
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http://e2e.ti.com/members/611890/activities/default.aspx
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http://www.bluetooth.com/English/SIG/Pages/default.aspx
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Lab at Intel Corp. in Hillsboro, OR.
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<		 ZigBee? Alliance - e-mailed 8-11 (auto-response RE: ZigBee? Sensors [1066007:1029385]) – 8-12-10 responded, re-e-mailed biometric sensors
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>		 ZigBee? Alliance - e-mailed 8-11 (auto-response RE: ZigBee? Sensors [1066007:1029385]) – 8-12-10 responded, re-e-mailed biometric sensors,

From: ZigBee? Alliance Help Desk (8-13) -- Executive Director will see if he can provide any information regarding personal health-care biometric Zigbee sensor company information. Waiting 5-10 business days for a response.
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http://zigbee.org/imwp/web3/reports/ecosystems.aspx
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West Technology Research Solutions – e-mailed 8-11 from adam's hotmail acct.
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Continua Health Alliance – e-mailed 8-11

Dan @ danjuliodesigns.com - e-mailed 8-11 ( http://itp.nyu.edu/camp/?tag=biometrics) – response 8-11-10 - electrical engineer. “Zigbee is finding success in control systems but I don't think it's going to be used for biometrics.”
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<		 TI E2E?™ Community – Karl – TI Employee (posted question 8-12-10 about biometric sensors)
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>		 TI E2E?™ Community – Karl – Texas Instruments Employee (posted question 8-12-10 about biometric sensors)
 

http://e2e.ti.com/members/611890/activities/default.aspx
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>		 The Bluetooth Special Interest Group (SIG) – e-mailed 8-12-10

http://www.bluetooth.com/English/SIG/Pages/default.aspx
  THE PLATFORMS ENABLING WIRELESS SENSOR NETWORKS

Jason Hill (jhill@jlhlabs.nos.com) is president and CEO of JLH Labs
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Lab at Intel Corp. in Hillsboro, OR.
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ZigBee? Alliance - e-mailed 8-11 (auto-response RE: ZigBee? Sensors [1066007:1029385]) – 8-12-10 responded, re-e-mailed biometric sensors
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…ZigBee standard enables powerful new wireless applications for safety, security, and control, ranging from smart energy to home automation and medical care to advanced remote control.
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>		 Bluetooth low energy versus ZigBee?

Karl from Texas Instruments (Engineer)

9 Mar 2010 8:42 AM

I've touched on this topic before outside of the blog, but a recent comment made me think that it could be appropriate to bring it up again. People enjoy some controversy, so what's better than putting different standards up against each other? I'll try to explain the differences and explain why BLE and ZigBee? don't really step on each other's toes in my opinion:

  • First, I would argue that Bluetooth low energy has been designed as an ultra-low power PAN/BAN (Personal Area Network/Body Area Network), while ZigBee is more of a low-power LAN (Local Area Network). BLE was designed from the start as a star network around a portable device such as a mobile phone. This means that it has a quite simple network topology, but with nodes dropping off or coming onto the network dynamically as they (or the central device) move in and out of range. It should be easy to add nodes, since they all connect to the central device. ZigBee was designed from the start to support mesh networking. This has two purposes; it allows the ZigBee? network to cover a large network area (hence the LAN moniker), and it allows flexible routing to deal with situations where routing nodes may become unavailable for some reason. This paradigm is more suited to relatively stationary networks, since it takes some time and effort to keep the routing information up-to-date.

  • Each standard has a couple of killer features that the other one doesn't have, and if you need one of them, the choice is pretty clear. For BLE, it's how BLE dual-mode means BLE piggy-backs on the huge installed base of Bluetooth devices. If you need to ultra-low power communication with a device that already includes Bluetooth (mobile phone, PC, PND, PMP etc.), then BLE should be your protocol of choice. On the other hand, if you need mesh networking to cover a large area, then ZigBee? is a clear choice.

  • Power-wise, ZigBee? and Bluetooth are quite different as well. Which one is the lowest power depends on the usage scenario. BLE uses a synchronous connection for it's connections; meaning that both master and slave wake up synchronously. This helps keep power on both sides low. ZigBee? uses an asynchronous scheme, this means that the routers stay awake all the time. The power consumption of the routers is then relatively high, but the end-nodes can wake up at any time, send their data and not have to wait for a specific time slot. You need to look into the specifics of your use case to figure out which one would fit your needs better; there is no clear-cut answer to the question "Is ZigBee? or BLE lowest power?"

There will surely be some overlap in application areas, as there is always some tendency to try to broaden the scope of standards, but overall Bluetooth low energy and ZigBee? target different areas. They each have their own strengths and weaknesses. BLE will be able to communicate with billions of Bluetooth devices, but does not support mesh. ZigBee? can cover large areas, but is not so well suited to ad-hoc networking and requires powered routers.
  Bluetooth

Low-energy Bluetooth is formally adopted – News – Linux for Devices
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http://www.ti.com/ww/en/analog/bluetooth/index.htm?DCMP=A_Signal%20Chain_Precision_LPRF&CMP=KNC-GoogleTI&247SEM
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<		 Research and Markets: Bluetooth Low Energy Forecast to Dominate Wireless Sensor Network Market says Q2 2010 Report
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>		 Research and Markets: Bluetooth Low Energy Forecast to Dominate Wireless Sensor Network Market says Q2 2010 Report
 

http://finance.yahoo.com/news/Research-and-Markets-bw-4040553799.html?x=0&.v=1
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http://www.researchandmarkets.com/reportinfo.asp?report_id=1245246&t=d&cat_id=
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By 2014, analysts project, consumers will buy over 200 million wireless body sensors every year! Every one of them can communicate best with Bluetooth low energy communication technology!

http://www.bluetooth.com/English/Products/pages/health.aspx

Ultra Low Power Wireless Quarter

http://www.nordicsemi.com/files/Picture/NS_ULP_WQ_Summer09_eR_16pp.pdf
  ZigBee

Tiny Sensors Run Forever (Almost)
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