A Novel Acceleration Data Compression Scheme for Wireless ...

eggplantcinnabarMobile - Wireless

Nov 21, 2013 (3 years and 6 months ago)

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A
N
ovel
Acceleration D
ata
C
ompression
Scheme

for

Wireless
Sensor Network

A
pplication in Fresh Food Tracking System

Jun Chen,

Zhibo Pang, Zhi Zhang, Jie Gao, Qiang Chen, Lirong Zheng

iPack Vinn Excellence Center, School of Information and Communication Tec
hnology

Royal Institute of Technology (KTH), Forum 120, 164 40 Kista
-
Stockholm, Sweden


Objectives

General
I
dea

Demodulation of intracellular proteins and
destruction of cell

membranes occur when the cells are

heated to above
45
-
50 °C

for a few minutes,
T
umor
radiofrequency thermal ablation (RFA) Skull requires (1)
accurate localization, (2) complete destruction oftumour
and (3) minimal collateral damage to surrounding healthy

tissues.

Existing problems
which account for the high local
recurrence rates

inc
lude (1) inadequate probe designs, (2)
probe placements and (3) (a)

actual monitoring of the
ablation process as these contribute to

incomplete
destruction of the tumor.

The aim
of this on
-
going project is to design a new RFA
probe for can be achieved by

l
ocal
ized & complete tumor
ablation
.
Another feature is its multifunctional or

therapy.
Multimodality which would result in improved
performance and

further enhance tumor therapeutic
treatment.

Material
,
Technology
,

Methods

New RFA probe design with multi
-
p
oints fluid
injection and novel

bipolar electrodes configuration

CAD design file connected to another FEM modeling
package



A simplified 3D rat brain model is being built for
this pilot FEM simulation study [1];



RF electric resistive heating and the Bighead

equation are

simultaneously solved [2];




Other heating mechanisms are being exploited, such
as Neel

relaxation heating of interstitial injected
super

paramagnetic

iron oxide Nan particles (SPIOs)
[3], or near infrared (NIR)

heating of interstitial
injecte
d carbon
Nan tubes

(CNTs) [4];

Materials for fluid injection in multimodality
application

Super paramagnetic

iron oxide
Nan particles

(SPIOs)



Rapid cell labeling methods [5] for MERI contrast
enhancement or for hyperthermia

Carbon
Nan tubes
: MWNTs



Cell lab
eling methods for
tumor

therapy and
tumor

hyper
thermion

enhancement

Equipments for nana
-
fluid study: Cell/tissue Electro
oration

apparatus, SEM/TEM, AFM/MFM, MRI/NMR
scanners

Results and
Discussion

0
500
1000
1500
2000
2500
-1
-0.5
0
0.5
1
1.5
2
samples
acce.(G)

1650
1700
1750
1800
1850
-1
-0.5
0
0.5
1
1.5
2
samples
acce.(G)


Acceleration data
set

(first
3000 samples of X
-
axis) from
container truck with sampling rate

of
20Hz

1650
1700
1750
1800
1850
-1
0
1
2
samples
acce.(G)

1650
1700
1750
1800
1850
-1
0
1
2
samples
acce.(G)


A waveform

1650
1700
1750
1800
1850
-1
0
1
2
samples
acce.(G)


D waveform

1650
1700
1750
1800
1850
-1
0
1
2
samples
acce.(G)


P waveform


Decomposition

of the source acceleration data

0
200
400
600
800
1000
4.5
5
5.5
6
6.5
7
7.5
Frame Size (samples)
Aver. CR


Adaptive Quantizer
Fixed Quantizer 3 bits
Fixed Quantizer 5 bits

0
200
400
600
800
1000
0.028
0.03
0.032
0.034
0.036
0.038
0.04
0.042
0.044
Frame Size (samples)
Aver.MMRE


Adaptive Quantizer
Fixed Quantizer 3 bits
Fixed Quantizer 5 bits






(a). Average CR





(b) Average
MMRE

Compression performance on different quantize strategy.

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:

Affiliations

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Code, etc.

Paper ID: