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NeSSI Wireless Sensor / Actuator Networking March 7, 2001 John Crawford VP, Business Development Crossbow Technology, Inc.
Background / Outline ,[object Object],[object Object],[object Object],[object Object]
Bluetooth Background ,[object Object],[object Object],[object Object],[object Object]
Bluetooth Overview ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Bluetooth vs. Other Technologies Bluetooth 802.11b Proprietary Manufacturers Ericsson, CSR, Motorola Proxim; Aironet; Breezecom Various Frequency 2.4GHz 2.4GHz 49MHz, 900 MHz, 2.4GHz Modulation FHSS, 1600/sec DSSS FM;FH;DS Datarate 720kb/sec 11Mb/sec 288kb/sec Range 10m/100m 100m Various Robustness Very secure Secure Various Power 1mw/100mw ?? Various
Basic Wireless Operation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Crossbow Node Architecture 300’ or 30’ Range ARM7 uP A/D 16 bit Mux SENSOR/ACTUATOR SENSOR/ACTUATOR SENSOR/ACTUATOR SENSOR/ACTUATOR Bluetooth Radio Chip Baseband Controller SRAM for Data SIO serial comm Flash RAM SIO +5.00 Supply Power 5V  DC Temp Sensor AA B a t t e r y DC-DC +3.5 & 5V Voltage Converter BATTERY PACK (OPTIONAL)  Radio Module Optional Power Amp  AA B a t t e r y AA B a t t e r y AA B a t t e r y
Crossbow SoftSens Software ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Plug and Play Sensors / Actuators ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SI/O Architecture NODE SENSOR/ACTUATOR SENSOR/ACTUATOR SENSOR/ACTUATOR SENSOR/ACTUATOR SIO Programmable Signal Conditioning Output (0 - 5V)  uP w/ flash memory TEDS Serial Communication SENSOR Sensor Excitation Sensor Output (low level) Terminal block for user to attach sensor Inexpensive cable, high level analog sensor signals
Typical Wireless I/O Application Level Sensor T/C Sensor Pressure Sensor Flow Sensor
CrossNet Summary ,[object Object],[object Object],[object Object],[object Object],[object Object]

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Ness Ppt

  • 1. NeSSI Wireless Sensor / Actuator Networking March 7, 2001 John Crawford VP, Business Development Crossbow Technology, Inc.
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  • 5. Bluetooth vs. Other Technologies Bluetooth 802.11b Proprietary Manufacturers Ericsson, CSR, Motorola Proxim; Aironet; Breezecom Various Frequency 2.4GHz 2.4GHz 49MHz, 900 MHz, 2.4GHz Modulation FHSS, 1600/sec DSSS FM;FH;DS Datarate 720kb/sec 11Mb/sec 288kb/sec Range 10m/100m 100m Various Robustness Very secure Secure Various Power 1mw/100mw ?? Various
  • 6.
  • 7. Crossbow Node Architecture 300’ or 30’ Range ARM7 uP A/D 16 bit Mux SENSOR/ACTUATOR SENSOR/ACTUATOR SENSOR/ACTUATOR SENSOR/ACTUATOR Bluetooth Radio Chip Baseband Controller SRAM for Data SIO serial comm Flash RAM SIO +5.00 Supply Power 5V DC Temp Sensor AA B a t t e r y DC-DC +3.5 & 5V Voltage Converter BATTERY PACK (OPTIONAL) Radio Module Optional Power Amp AA B a t t e r y AA B a t t e r y AA B a t t e r y
  • 8.
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  • 10. SI/O Architecture NODE SENSOR/ACTUATOR SENSOR/ACTUATOR SENSOR/ACTUATOR SENSOR/ACTUATOR SIO Programmable Signal Conditioning Output (0 - 5V) uP w/ flash memory TEDS Serial Communication SENSOR Sensor Excitation Sensor Output (low level) Terminal block for user to attach sensor Inexpensive cable, high level analog sensor signals
  • 11. Typical Wireless I/O Application Level Sensor T/C Sensor Pressure Sensor Flow Sensor
  • 12.