1 1 erfquake a quick look at wireless mobile sensors copyright nitrosoft 2010 nitrosoft & cortus
TRANSCRIPT
1
eRFquake
A quick look at wireless mobile sensors
Copyright Nitrosoft 2010
NITROSOFT & CORTUS
2
Integrator’s challenges
W
irele
ss p
rovid
er
•S
enso
r p
rovid
er
You designed a sensor, hard choice for wireless implementation ZigbeeZwaveWavenisWiFiProprietary (investment $$$)
You provide wireless communication, how to improve sensor coverageDistributorsPartnersProprietary (investment $$$)
3
eRFquake foundations: interoperability
Wireless chipeRFquake
Sensor
Protocol freeZigbee, Zwave, Wavenis….
Sensor free Interfaces & Parameters
4
Mobile sensor constraints
Mobile sensor, self poweredPower SupplyConsumptionBattery lifetime
Mobile sensor, RTLS locationMotion device Location device
5
Wireless chipeRFquake
PCB
Sensor
Protocol freeZigbee, Zwave,
Wavenis….
Sensor freeInterface,
Parameters
Power freeEmbedded boosters (3 V -24V)
andEnergy Harvesting
Location
Motion Sensor Embedded RTLS
device
eRFquake’s focus on mobile
6
eRFquake design
eRFquakeChip &
Co-Processor
Sensordevice
EnergyHarvesting
Boosterdevice
RF modem
Motion Sensor
I2C & SPI
RTLSdevice
7
Energy Harvesting
eRFquakechip
EnergyHarvesting
Boosterdevice
Motion Sensor
RTLSdevice
Ultra low voltage
From 0.1 Volt
Voltage multiplier
carterpillar
PowerSupply
Energy from
PhotovoltaicAmperometric
Motion induction
Pyro electricity
8
Booster
eRFquakechip
Booster Device
Energy harvesting
Motion Sensor
RTLSdevice
Power Supply
BoosterDevice
Sensor
Tuning voltage to sensor
needs.
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Motion sensor
eRFquakechip
Motion Sensor
Boosterdevice
RTLSdevice
StartStop Power
supply
Switchers
CPU Sleep mode
Energy harvesting
RF modem
RTLS device
Energy saving
Shut down if stopped
Shut down if stopped
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RTLS, tracking location
eRFquakechip
Boosterdevice
Motion Sensor
incoming RFBeacon
eRFquakeLocation
Distance(s) calculation
Energy harvesting
RTLSdevice
LoadRTLS
Incomingultrasound
Maths (FFT)
1 to 4 beacons100 meters
rangeAccuracy
11
RTLS location
Em
itte
rs•
Rece
ivers
o Beacon designLow voltage power supplyVoltage multiplier catterpillar (Nitrosoft TM)Long range ultrasound (100 meters)
o Mobile designUltrason transducer
Low Power ( 0.24 mA)Low cost (mass production)Tiny ( 4 mm2)
APS3 maths (Fast Fourier Transform)Multiple frequencies analysis by FFT for real time
tracking.
12
Addressing integrator challenges
W
irele
ss p
rovid
er
•S
enso
r p
rovid
er
o You designed a sensor, free choice for wireless implementation and added featuresPower supplyEnergy HarvestingRTLS and tracking mobile sensors
o You provide wireless communication, improving coverageeRFquake chip connectivityeRFquake interoperability