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Pressure monitoring in wireless sensor network using
ZigBee transceiver module
Under the guidance of By
Smt ch.Phanisri M.Bhaskar KrishnaAssociate Professor
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Abstract
The main of the work undertaken is to sense the pressure and
to
display the result on the LCD as well as on the PC using
ZigBee
technology. In this work the pressure sensor senses the pressure
and
is fed to the microcontroller, this is then connected to the
ZigBee module, which transmits the data and at the other end
the
ZigBee reads the data and displays on to the LCD and displays on
the
PC using HyperTerminal.
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Pressure sensor
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Sensor internal circuitry
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The differential voltage output of the x-ducer is directly
proportional to the differential pressure applied.
The output voltage of the differential sensor increases with
increasing pressure applied to the pressure side(p1) relative
tothe vacuum side(p2).similarly output voltage increases as
increasing vacuum is applied to the vacuum side(p2) relative
to
pressure side(p1).
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XBEE module
The Xbee module is engineered to meet IEEE802.15.4 and support
the unique needs of low
cost, low power wireless sensor networks.
The module operate with in the ISM 2.4GHzfrequency band.
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Requirements
Hardware requirements:
LPC 2148
Xbee modules
Pressure sensor
Software requirements:
KEIL-C compiler
Flash magic
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ARM features
It is based on 16-bit/32-bit ARM7TDMI-S CPU
with real time emulation and embedded trace
support, that combine microcontroller with
embedded high speed flash memory ranging
from 32kB to 512kB.
Two 10-bit ADCs provide a total of 14 analog
inputs, with conversion time as low as 2.44sper channel.
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Multiple serial interfaces including two
UARTs,two fast I2C-bus.
Vectored Interrupt Controller(VIC) with
configurable priorities and vector addresses.
On-chip integrated oscillator operates with an
external crystal from 1MHz to 25MHz.
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Block diagram
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Applications
Used in process control industry.
Used in data acquisition systems.
Used in testing of machines. Used in automotive industries.
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Conclusion
Pressure sensing unit was designed successfully.
I have done for one parameter.but,the same
can be also be done for 2 or more parameters
like temperature and humidity in real timeapplications.
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Result
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REFERENCES
G Ding ,Z sahinogulu,J Zhang,Reliable Broadcast in ZigBee
networks,Proc.of
IEEE conference on ZigBee.
S.C.Mukhopadyay,A zigbee based smart sensing platform for
monitoring
environmental parameters,IEEE Manuals.
P.S.Pandian,Pragathi Gupta,Wireless sensor network for wearable
physiological
monitoring,journal of networks.
Motorala.MPX2010 datasheet pdf-differential
pressure sensor.datasheetcatalog.com
Digi.Xbee & Xbee PRO 802.15.4 OEM RFModules-Digi
International,http://ftp1.digi.com
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THANK YOU
