A Filtering and Smoothing Algorithm for Reliable RFID Traceability

confidencehandElectronics - Devices

Nov 27, 2013 (3 years and 11 months ago)

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________________________________________



:
Corresponding Author

A

Filtering and Smoothing

Algorithm

for Reliable

RFI
D

Traceability


Heeju Jin
1

and Yong
-
Han Lee

2

Dep
ar
t
ment

of Industrial and Systems Engineering

Dongguk University
-
Seoul
, 26, Pil
-
dong 3
-
ga, Jung
-
gu, Seoul, 100
-
715, South Korea.

Email:
hjjin@dgu.edu
1

yonghan@dgu.edu
2


Abstract
.

RFID

technology
is use of RFID tag applied to object
s

for the purpose of identification and tracking
using radio waves. Recently, it is being actively researched and introduced in
manufacturing.

RFID portals in
supply chains are meant to identify all the tags within a given interrogation zone. Hence the hardware and
software mechanisms for RFID tag identification are mostly focused on
effective
read
s

of multiple tags
simultaneously.

Such mechanis
ms, however, are inefficient
if we need to determind the
validity of the tag reads
from the workflow’s point of view.

And sometimes missing observations are occurred
due to

read
er

failure
s.

These problems
hinder reliability of RFID track and trace systems
.

In this research, we purposed
an effieciant
filtering algorithm

designed for the situation that s
everal RFID portals are installed in
a confined area
and
a
Fuzzy
-
based
smoothing algorithm to

handle

missing observation
s
.


Keywords:

RFID,
Missing observati
on
,

Track & Trace, Fuzzy