home monitoring with wireless sensor networks
DESCRIPTION
Home Monitoring with Wireless Sensor Networks. Jesse Phelps – Senior Developer , LashBack. Agenda. ZigBee XBee Basic Overview Adapter Kill A Watt Motion Detector (PIR) XBee frame description Other uses. Wireless Sensor Networks. ZigBee. Personal Area Network Built on IEEE 802.15.4 - PowerPoint PPT PresentationTRANSCRIPT
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Home Monitoring with Wireless Sensor Networks
Jesse Phelps – Senior Developer, LashBack
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Agenda
• ZigBee• XBee
– Basic Overview– Adapter
• Kill A Watt• Motion Detector (PIR)• XBee frame description• Other uses
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Wireless Sensor Networks
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ZigBee
• Personal Area Network• Built on IEEE 802.15.4• Adds authentication & encryption
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ZigBee Stack
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XBee
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XBee Specs
• Power output: 1mW• Indoor/Urban range: Up to 100ft (Pro 300ft)• Outdoor/LOS range: Up to 300ft (Pro 1mi)• RF data rate: 250kbps• Operating frequency: 2.4 GHz
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XBee Adapter
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Adapter Pinout
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Wireless Kill A Watt
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Parts Kit
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Schematic
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Assembled Kit
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Assembled Kit
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Assembled Kill A Watt
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Assembled Kill A Watt
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Motion Detector
• Passive Infrared (PIR)• Pryoelectric Device• Detects change in the infrared profile
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Pyroelectric Devices
• Voltage output with temperature changes– Temperature change modifies atom position– Changes polarization– Gives rise to voltage
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Fresnal Lens
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Frame Description
• 7E Start Delimiter• 00 0C Length Bytes• 83 API Identifier for 16bit DIO Data• 56 78 Source Address• 2E RSSI Value bytes• 00 Option byte• 02 Sample Quantity Byte
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Frame Description continued
• 00 18 Channel Indicator– 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0
• 00 18 Sample Data (1 high, 0 low)• 36 Checksum
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Other uses
• Wireless temperature sensor• .NET Micro
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Links
• http://www.digi.com/• http://www.ladyada.net/• http://www.p3international.com/• http://www.devicesolutions.net/
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Sponsors