RFID課程主題三

guineanscarletΗλεκτρονική - Συσκευές

27 Νοε 2013 (πριν από 3 χρόνια και 4 μήνες)

97 εμφανίσεις

1

EPC/RFID
系統架構與案例分析

RFID
課程主題三

2

課程內容


EPC/RFID
系統架構建置


網路元素的運作原理


指標性案例分享

3

EPC Technologies


Electronic product code (EPC): an unique code for each
object


RFID Tag

• RFID reader

• Object Name Service( ONS) : each number corresponds

with an address in database

• Product Markup Language(PML): In PML server, PML is
used to describe and store information about the item.

• Savant: can work as a router, it get EPC information from

the RFID reader, send the information to ONS Server
and combine with application program for management
of the item.

4

EPC
網路架構
1

5

EPC
網路架構
2

6

EPC
網路架構
3

7

EPC
網路架構
4

8

EPC
網路架構
5

9

EPC

C1G2


全名

EPC Class 1 Generation 2


Four “sessions”, each of which have
their own


Access and Kill passwords


Four memory “banks”

10

Defined Gen 2 Requirements


Dozens of the world’s leading retail supply chain
organizations defined Gen 2 user requirements

11

Four sessions


“Inventoried” flag


“Select” (SL) flag


Only one “inventory” (identify) operation at
a time

12

Access and Kill passwords


Used to restrict reading and writing


EPC code is returned during inventory


Kill operation is permanent


13

Four memory banks


Reserved (Bank 0)


EPC (Bank 1)


TID (Tag ID) (Bank 2)


User (Bank 3)


14

Memory Bank 0 (Reserved)


Reserved memory (bank 0) contains the
kill

and
access

passwords


The kill password occupies bytes 0
-
1 (MSB
first)


The access password occupies bytes 2
-
3
(MSB first)


If a tag does not implement the kill and/or
access passwords, it acts as though it had
zero
-
valued passwords that are permanently
read/write locked


15

Detailed Content of Bank 1 (EPC)


Contains CRC
-
16, Protocol Control (PC), and
EPC code


PC bits specify EPC length in 16
-
bit words


EPC code begins at byte 3 (EPC header)


Caution
: EPC C1 G2 uses 16
-
bit data words
on even boundaries, so you
must

format
and write a proper PC word to write the EPC!

CRC
-
16

PC

EPC less header

64
-

or 96
-
bit EPC code

16

Detailed Content of Bank 1 (EPC)


Length

is expressed in units of
words
, so 6
is the length of EPC
-
96


RFU is always zero


EPCISO bit is zero for EPC


NSI (Number System ID) is used only if
EPCISO bit is 1


To avoid all this, use “WRITE
EPCID=Hxxx…xxx” with BRI

17

Detailed Content of Bank 1 (EPC)

1
byte EPC

Header

CRC
-
16

Length

RFU

Zero

Fill

64
-

or 96
-
Bit EPC

PC (Bytes 2
-
3)

CRC (Bytes 0
-
1)

NSI

1
byte

EPCISO Bit

Bytes 4
-
n

18

Memory Bank 2 (Tag ID)


Contains an 8
-
bit ISO/IEC 15963 allocation class
identifier (0xE2 for EPCglobal) in byte 0


The next 12 bits are a mask
-
designer identifier
(manufacturer ID) (obtained from EPCglobal)


The 12 bits after the manufacturer is a 12
-
bit tag
model.


The manufacturer ID and tag model must provide
sufficient information for a reader to uniquely
identify the custom commands and/or optional
features that a tag supports


Bytes 4 and up may contain Tag
-

and vendor
-
specific data such as a tag serial number


IEC 15963

ID (0xE2)

Manufacturer ID

Tag Model

Tag Serial Number

8
bits

12
bits

12
bits

Vendor
-
specific

19

Memory Bank 3 (User)


Organization and use is user
-
defined


Memory capacity determined by chip
manufacturer

20

案例分享


Auto Receiving /Shipping


Fork Lift Application


Drug Counterfeit & ePedigree


Wal*Mart


廢棄物處理
RFID
應用


21

Auto Receiving /Shipping


Wal
-
Mart Mandate


Metro Mandate


Target Mandate

Real Cases

Benefits


減少清點每箱貨物的
時間



ASN
比較用以減少
補貨時間及成本


減少尋找貨物時間


增加客戶滿意度

22

Gate reader


23

Fork Lift Application

Dock Door 1

Dock Door 20

24

貨架天線擺設

25

Forklift Related Application


Worley 3PL

Real Cases

Benefits


減少盤點時間


減少建置閘門式
Reader
之固定成本


減少尋找貨物時間


增加客戶滿意度

C

B

A

1

2

3

4

S1

S2

S3

Pick

Go to S3

Return to

Receiving

26

Drug Counterfeit & ePedigree

100,000
Tags used

1
st

counterfeit


Project in Asia

Purdue Pharma & H.D. Smith Pilot


27

Wal*Mart

28

廢棄物處理
RFID
應用
-
收料

廢棄物

With
RFIDLabel



RFID
讀取模組

電子數位輸出磅秤

GPRS(3
-
5 km)

電腦列印模組

iPAQ PDA

BT(10 m)

BT(10 m)

WLAN(100 m)

29

廢棄物處理
RFID
應用
-
焚化爐管理


廢棄物

With RFID Label

& External
Barcode Label

電腦控制模組

RFID
天線
x4

RFID
外接天線模組

WLAN(100m)

AP

Data

Server