Full Barcode Scanner
Transcript of Full Barcode Scanner
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I. Barcode
1. What is barcode?
A bar code, or bar code label, is a series
of parallel black bars and white spaces,
both of varying widths. Bars and spaces
together are called elements. Different
combinations of the bars and spaces
represent different characters, such as
numbers or letters. Each combination or
sequence of bars and spaces is a code
that can be translated into information
such as price, product type, place of
manufacture, or origin of shipment.
Related technologies include RFID, an
alternative to the bar code.
A bar code label can be used on pallet
and flow racking to identify product
location.
2. Types of barcodes
Since 1973, the Uniform Product Code
(UPC), regulated by the Uniform Code
Council, an industry organization, hasprovided a standard bar code used by
most retail stores.
I. M vch
1. M vch l g?
Mt m vch, hoc nhn m vch,
l mt lot cc vch mu en v
khng gian mu trng song song, c
hai u thay i rng. Cc vch
v khng gian gn vi nhau c
gi l cc phn t. S kt hp khc
nhau ca cc vch v khng gian
i din cho cc k t khc nhau,
chng hn nh s hoc ch. Mi s
kt hp chui cc vch v khng
gian l mt on m c th c
dch thnh thng tin nh gi c, loi
sn phm, ni sn xut, hoc
ngun gc ca l hng. Cng ngh
lin quan bao gm RFID, thay th
cho cc m vch.
Mt nhn m vch c th c s
dng trn pallet v dng k xc
nh v tr sn phm.
2. Cc loi m vch
K t nm 1973, M sn phm
thng nht (UPC), c quy nh
bi Hi ng M thng nht, mt t
chc cng nghip, cung cp mtm vch tiu chun c s dng
bi hu ht cc ca hng bn l.
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There are different types of bar codes.
Some bar codes are entirely numeric,
whereas others have numeric and
alphabetic characters. The type used is
dependent upon the implementation, the
data that needs to be encoded, and how
the bar code is to be printed. There are
several barcode standards, called
"symbologies," each serving a different
purpose. Each standard defines the
printed symbol and how the scanner
reads and decodes the printed symbol.
The following table summarizes the most
common bar code standards.
Bar Code
StandardUses
Uniform
Product Code
(UPC)
Retail stores for sales
checkout; inventory,
etc.
Code 39
(Code 3 of 9)
Identification,
inventory, and
tracking shipments
POSTNETEncoding zip codes
on U.S. mail
European
Article Number
(EAN)
A superset of the
UPC that allows extra
digits for country
identification
Japanese Similar to the EAN,
C nhiu loi m vch khc nhau.
Mt s m vch l hon ton s,
trong khi nhng ci khc c cc k
t s v ch ci. Loi c s
dng th ph thuc vo vic thc
hin, d liu cn phi c m ha,
v m vch c in. C mt s tiu
chun m vch, c gi l "tng
trng", phc v mc ch khc
nhau. Mi tiu chun nh ngha cc
biu tng in v c my qut v
gii m cc biu tng in.
Bng sau y tm tt cc tiu chun
m vch ph bin nht.
Bar Code
StandardUses
Uniform
Product Code
(UPC)
Ca hng bn l
cho cc quy
thanh ton bn
hng, hng tn
kho, vv.
Code 39
(Code 3 of 9)
Xc nh, hngtn kho, v theo
di cc l hng.
POSTNETM ha m zip
trn th M
European
Article Number
(EAN)
Mt siu UPC
cho php thm
ch s xc
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Article Number
(JAN)used in Japan
Bookland
Based on ISBN
numbers and used on
book covers
ISSN bar code
Based on ISSN
numbers, used on
periodicals outside
the U.S.
Code 128
Used in preference to
Code 39 because it is
more compact
Interleaved 2 of
5
Used in the shipping
and warehouse
industries
Codabar
Used by Federal
Express, in libraries,
and blood banks
MICR
(Magnetic Ink
Character
Recognition)
A special font used
for the numbers on
the bottom of bank
checks
OCR-A
The optical character
recognition format
used on book covers
for the human
readable version of
the ISBN number
nh quc gia.
Japanese
Article Number(JAN)
Tng t nh
EAN, c s
dng ti Nht
Bn.
Bookland
Da trn cc s
ISBN v c s
dng trn ba
sch.
ISSN bar code
Cn c vo s
ISSN, c s
dng nh k bn
ngoi nc M
Code 128
c u tin s
dng trong choCode 39 bi v
n nh gn hn
Interleaved 2
of 5
c s dng
trong cc kho
ngnh cng
nghip v vnchuyn
Codabar
c s dng
bi Federal
Express, trong
th vin, v cc
ngn hng mu
MICR Mt phng ch
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OCR-B
Used for the human
readable version of
the UPC, EAN, JAN,
Bookland, and ISSNbar codes and for
optional human-
readable digits with
Code 39 and
Interleaved 2 of 5
symbols
MaxicodeUsed by the United
Parcel Service
PDF417
A new 2-D type of bar
code that can encode
up to 1108 bytes of
information; can
become a
compressed, portable
data file (which is
what the "PDF"
stands for)
(Magnetic Ink
Character
Recognition)
c bit c s
dng cho cc s
di cng ca
kim tra ngnhng
OCR-A
Nhn dng k t
quang hc c
s dng trn ba
cc cun sch
cho con ngi cth c c
phin bn ca s
ISBN.
OCR-B
c s dng
con ngi c th
c c phin
bn ca UPC,
EAN, JAN,
Bookland, v
ISSN m vch v
cho s la chn
ca con ngi cth c c
ch s vi biu
tng Code 39,
Interleaved 2 ca
5.
Maxicode c s dng
bi dch v bu
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How does bar codes work?
Bar Code Readers
The bar code itself does not actually
contain any detailed information. The
pattern of alternating lines on a bar code
represent a reference number, which is
linked to information in a computer. A bar
code reader is therefore required to read
a bar code and interpret this number to
access information. Bar code readers
may be fixed, portable batch, or portable
RF (radio frequency).
Bar Code Scanners and Decoders
The basic reader consists of a scannerand a decoder. Scanners capture the
image of the bar code, and the decoder
kin United.
PDF417
Loi 2-D mi ca
m vch c th
m ha ln n
1108 byte ca
thng tin; c th
tr thnh mt tp
tin nn d liu di
ng.
3. M vch hot ng th no?
3.1. c m vchCc m vch khng thc s c
cha bt k thng tin chi tit. Cc
m hnh xen k cc dng trn mt
m vch i din cho mt s ti liu
tham kho, l lin kt thng tin
trong mt my tnh. Mt u c mvch l cn thit c mt m
vch v gii thch con s ny truy
cp thng tin. Ngi c m thanh
c th c c nh, hng lot di
ng, hoc di ng RF (tn s v
tuyn).
3.2. My qut m vch v gii
m
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takes the digitized bar space patterns,
decodes them, and transmits the
decoded data to the computer.
When a scanner is passed over the bar
code, the dark bars absorb the scanner's
light while the light spaces reflect it. A
photoelectric sensor receives the
reflected light and converts it into an
electrical signal. A low electrical signal is
created for the reflected light and a high
electrical signal is created for the dark
bars. The width of the element
determines the duration of the electrical
signal. The decoder then decodes the
signal into the characters represented by
the bar code and passes it to a computer
in traditional data format.
Benefits of Barcodes
In point-of-sale management, barcode
systems can provide detailed up-to-date
information on the business, accelerating
decisions and with more confidence. For
example:
Fast-selling items can be identified
quickly and automatically
reordered.
Slow-selling items can be
identified, preventing inventorybuild-up.
The effects of merchandising
My c c bn bao gm mt my
qut v gii m. My qut chp hnh
nh ca m vch, v b gii m cc
m hnh s ha khng gian mu,
gii m chng, v truyn cc d liu
c gii m vo my tnh.
Khi mt my qut i qua m vch,
cc vch ti hp th nh sng ca
my qut trong khi cc khng gian
nh sng phn nh n. Mt cm
bin quang in nhn c nh
sng phn x v chuyn i n
thnh tn hiu in. Mt tn hiu in
thp c to ra cho nh sng
phn x v mt tn hiu in cao
c to ra cho cc vch ti. Chiu
rng ca phn t xc nh thi gian
ca tn hiu in. B gii m sau
gii m cc tn hiu vo cc k t
i din bng m vch v chuyn
n n mt my tnh trong nh
dng d liu truyn thng.
4. Li ch ca m vch
Trong qun l im bn hng, h
thng m vch c th cung cp chi
tit cp nht thng tin kinh doanh,
quyt nh tng tc v vi tin cy
hn. V d: Cc mt hng bn nhanh c
th c xc nh mt cch
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changes can be monitored,
allowing fast-moving, more
profitable items to occupy the best
space,
Historical data can be used to
predict seasonal fluctuations very
accurately.
Items may be repriced on the shelf
to reflect both sale prices and price
increases.
This technology also enables the
profiling of individual consumers,
typically through a voluntary
registration of discount cards.
Besides sales and inventory tracking,
barcodes are very useful in logistics.
When a manufacturer packs a box
for shipment, a Unique Identifying
Number (UID) can be assigned to
the box.
A database can link the UID to
relevant information about the box;
such as order number, items
packed, qty packed, destination,
etc.
The information can be transmitted
through a communication system
such as Electronic Data
Interchange (EDI) so the retailerhas the information about a
shipment before it arrives.
nhanh chng v t ng sp
xp li.
Cc mt hng bn chm c
th c xc nh, ngn chn
hng tn kho tng cao.
Tc ng ca thay i bn
hng c th c theo di,
cho php nhanh chng
chuyn cc hng mc c li
hn chim lnh khng gian
tt nht.
Cc d liu lch s c th
c s dng d on
bin ng theo ma rt chnh
xc.
Cc mt hng c th c
xem li gi trn k phn
nh gi bn v tng gi.
Cng ngh ny cng cho php
cc h s ca ngi tiu dng
c nhn, thng l thng qua
mt ng k t nguyn ca
cc th gim gi.
Bn cnh doanh s bn hng v
theo di hng tn kho, m vch rt
hu ch trong vic giao nhn.
Khi mt nh sn xut gi mt
hp cho l hng, mt xc nh
s duy nht (UID) c th c
n nh cho hp .
C s d liu c th lin kt
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Shipments that are sent to a
Distribution Center (DC) are
tracked before forwarding. When
the shipment reaches its final
destination, the UID gets scanned,
so the store knows the shipment's
source, contents, and cost.
Barcode scanners are relatively low cost
and extremely accurate compared to
key-entry.
3. Barcode applications
Barcode technology has been used for
decades and during this time has proved
itself as a reliable performer when
supporting SCM (Supply Chain
Management). Testament to this is the
versatility in which the technology can be
adapted to suit specific applications.
There is a plethora of case studies which
examine the role of barcodes within a
particular SCM scenario such as Auto
Group hits high notes with new inventory
management system and RF cuts
processing time for Lexus car and parts
deliveries.
4. Summary and Conclusions
There are a common theme and
structure to most of these works, which is
UID thng tin c lin quan v
hp; chng hn nh s th t,
cc mt hng ng gi, s
lng ng gi, im n ...
Thng tin c th c truyn
qua mt h thng truyn thng
nh Electronic Data
Interchange (EDI) cc nh
bn l c cc thng tin v mt
l hng trc khi n n.
Cc l hng c gi n
trung tm phn phi (DC)
c theo di trc khi
chuyn tip. Khi l hng n
im n cui cng ca n,
UID c qut, v vy ca
hng bit ngun, ni dung ca
l hng, v chi ph.
My qut m vch l chi ph tng
i thp v cc k chnh xc so vi
nhp m kha.
5. ng dng m vchCng ngh m vch c s
dng trong nhiu thp k v trong
thi gian ny chng minh chnh
n nh l mt trnh din ng tin
cy khi h tr SCM. Minh chng
cho iu ny l tnh linh hot trongcng ngh c th c iu chnh
cho ph hp vi cc ng dng c
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that they all cover elementary ground
and follow a similar structure. Typically,
they cover barcode and barcodes type,
followed by describing parts that make
up a barcode system such as printers
and readers. Finally, they cover common
past business applications and barcodes
benefits of barcodes. Many of these
sources neglect to delve into exploring
what the future of barcode technology
may yield. The few articles that attempt
to explore the future of barcodes,
typically, do not utilise a rigorous
methodology. Several works explore
alternative technologies such as RFID,
however rarely is RFID given an equal
weighting to that of barcodes. In addition
to this, there is a tendency to avoid the
critical analysis of barcodes and their use
within SCM.
th. C rt nhiu trng hp nghin
cu xem xt vai tr ca m vch
trong mt trng hp SCM c th
chng hn nhAuto Group lt truy
cp ghi ch cao vi h thng qun
l hng tn kho mi v RF ct gim
thi gian x l cho chic xe Lexus
v cc b phn giao hng.
6. Tm tt v kt lun
C mt ch chung v cu trc
ca hu ht cc cng vic, n l
chng bao gm tt c cc nn tng
c bn v thc hin theo mt cu
trc tng t. Thng thng, chng
bao gm cc nh ngha m vch v
cc loi m vch, tip theo l m t
cc b phn to nn mt h thng
m vch chng hn nh my in v
my c. Cui cng, chng bao
gm cc ng dng kinh doanh ph
bin trong qu kh v li ch m
vch. Nhiu ngi trong s nhng
b b ngun i su vo khm
ph nhng g tng lai ca cng
ngh m vch c th mang li. Cc
bi vit c gng khm ph tng
lai ca m vch, thng thng,
khng s dng mt phng phpnghim ngt. Mt s cng vic
khm ph nhng cng ngh thay
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th nh RFID, tuy nhin him khi
RFID cho mt trng lng bng m
vch. Thm vo iu ny, c mt
khuynh hng trnh vic gii
hn phn tch ca m vch v s
dng trong SCM.
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II. Barcode Scanner
1. What is Barcode Scanner?
The barcode scanner is an acquisition
image of the barcode printed on the
surface and transfer the information
contained in the barcode to the computer
or other devices need this information. It
usually has a light source attached to the
lens to focus light on the barcode, then
collect the reflected light on a
photosensitive convert light signals into
electrical signals. Also, many barcode
scanners, an additional circuit board
signal processing from sensor to switch
the signal suitable for connection to a
computer.
2. CLASSIFICATION STRUCTURE
Depending on the environment and how
to use that manufacturers use to create
barcode scanner barcode scanner has
many different categories such asportable desktop formats, wireless
forms, as chopsticks, as the barcode
reader, format pull cards etc. Here are a
number of common types of scanner:
1. Handheld ScannerPortable format commonly used in
retail stores, in bookstores, used to
II. My qut m vch
1. My qut m vch l
g?
My qut m vch l mt my
thu nhn hnh nh ca m vch in
trn cc b mt v chuyn thng tin
cha trong m vch n my tnh
hay cc thit b cn thng tin ny.
N thng c mt ngun sng km
theo thu knh, hi t nh sng
ln m vch, ri thu nh sng phn
x v mt cm quang chuyn ha
tn hiu nh sng thnh tn hiu
in. Ngoi ra, nhiu my qut m
vch cn c thm mch in t x
l tn hiu thu c t cm quang
chuyn thnh tn hiu ph hp
cho kt ni vi my tnh.
2. PHN LOI THEO CU
TO
Ty theo mi trng s dng
v cch thc s dng m cc nh
ch to ra my qut m vch c
nhiu chng loi my qut m vch
khc nhau nh dng cm tay, dng
bn, dng khng dy, dng a,
dng c th m vch, dng koth v.v... Di y l mt s dng
my qut m vch thng dng:
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check the bar code printing. Type the
two types of handheld CCD scanner and
a laser scanner and are usually linear.
However, it still has the form 2-D
handheld scanners can be two-
dimensional bar code. Handheld
Scanner Most of the stands are supplied
with a bracket, so as to hand can be as
common goals. Handheld scanner type
is the least expensive of all types of
barcode scanner.
a. Laser barcode scanners
These scanners use laser beam as
a source of illumination for reading
barcodes. They usually have a rotating
prism or an oscillating mirror. It moves
the laser beam forward and backward
across the barcode. A photodiode in the
scanner measures the intensity of light
reflected from the barcode.
Laser scanners have high precision
and accuracy. They are considered tohave a good performance because of
their scanning range. They have the
ability to read barcodes from greater
distances and are preferred for non-
contact applications.
b. CCD barcode scanners
The scanners using CCD (Charge
1. Dng cm tay
Dng cm tay thng c
s dng trong cc ca hng bn
l, trong nh sch, dng kim
tra khi in m vch. Dng cm tay
c c hai dng l CCD scanner v
Laser scanner v thng l loi
tuyn tnh. Tuy nhin cng vn c
dng cm tay 2-D c th qut c
m vch 2 chiu. a s cc loi
Handheld Scanner u c km
theo chn ng v gi , do
dng cm tay vn c th bn
c nh thng. Dng cm tay l
loi my qut r tin nht trong s
tt c cc chng loi my qut m
vch.
a. My qut m vch laser
Cc my qut ny s dng
chm tia laser nh mt ngun
chiu sng cho vic c m vch.
My qut m vch laser c mt
lng knh quay hoc my phn
chiu dao ng. N di chuyn
chm tia laser tin li qua m vch.
Mt photodiode trong my qut o
cng nh sng phn x t m
vch.
My qut laser c chnh
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Coupled Device) technology are termed
as CCD scanners. They are also called
as linear imager barcode scanners. A
series of small light sensors are
arranged in a single row in a CCD
barcode scanner. They measure the
ambient light emitted by the barcode.
CCD scanners are designed in such a
way that they can withstand harsh
working conditions.
Advantages of CCD scanners
over laser scanners
CCD scanners are beneficial over
laser scanners in many ways. Some of
them are mentioned here:
CCD scanners incorporate
use of LED lights for illuminating
the barcode. They last for about
ten times longer than laser
scanners.
Unlike laser scanners, CCD
scanners do not have any moving
parts. So, they are less
susceptible to damage or failure.
They are resistant to regular wear
and tear.
When you use a laser beam,
it is necessary to follow certain
safety precautions with respect to
direct viewing. As CCD scanners
xc v tnh chnh xc cao. N c
xem l c mt hiu sut tt bi v
phm vi chc nng qut ca n.
N c kh nng c m vch t
khong cch xa hn v c u
tin dng cho cc ng dng khng
tip xc.
b. My qut m vch CCD
Cc my qut s dng cng
ngh cm bin CCD (Charge
Coupled Device) c gi l my
qut CCD. N cn c gi l my
qut m vch tuyn tnh hnh. Mt
lot cc b cm bin nh sng nh
c sp xp theo mt hng duy
nht trong mt my qut m vch
CCD. N o nh sng xung quanh
pht ra bi m vch. My qut
CCD c thit k theo cch m
h c th chu c iu kin lm
vic khc nghit.
u im ca my qut CCD
hn my qut tia laser.
My qut CCD c li hn cc
my qut laser theo nhiu cch.
Mt s u im trong s c
cp di y:
My qut CCD kt hps dng n LED chiu
sng cc m vch. Cui cng
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do not use any laser beams, they
are not associated with any safety
specifications.
CCD scanners are
inexpensive when compared to
laser barcode scanners.
They have a higher scanning
rate than that of laser scanners.
Advantages of laser scanners
over CCD scanners
Laser barcode scanners have
certain benefits over CCD scanners.
Some of them include:
Laser scanners can read
barcodes at a wider range of
distances. So, unlike CCD
scanners, they can be kept at a
distance from the barcode.
Hence, they are mostly preferred
for long range scanning.
The other benefit of laser
scanners is that they can read
barcodes of longer lengths. CCD
scanners can only read barcodes
of three or four inches in length
or smaller.
Laser scanners are very
easy to handle. Even an
untrained operator can use it
without any issues.
n gp khong mi ln so
vi cc my qut laser.
Khng ging nh my
qut tia laser, my qut CCD
khng c bt k b phn
chuyn ng. V vy, n
khng d b hng hoc khng
hot ng nh mong mun.
N c kh nng chng hao
mn thng thng.
Khi bn s dng mt
chm tia laser, n l cn thit
thc hin theo cc bin
php phng nga an ton
nht nh xem trc tip.
Nh CCD my qut khng
s dng bt k chm tia
laser, n khng lin quan vi
bt k chi tit k thut an
ton.
My qut CCD khng
tn km khi so snh vi my
qut m vch tia laser.
N c mt tc qut
cao hn so vi cc my qut
laser
u im ca my qut laser
hn my qut CCD.
My qut m vch laser cnhng li ch nht nh hn my
qut CCD. Mt s u im ca
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Both laser and CCD scanners are
preferred by many businesses these
days. Though laser and CCD scanners
are advantageous in their own way,
here are some comparative views on
their benefits.
2. In-counter Scanner
The format for the table is a 2-D
barcode scanner uses laser light beam
with very high speed scanner that can
scan at up to 2000 scans / second. At
this rate, the scanner is very sensitive
and can scan the barcodes of inferior
quality. Format desktop scanners are
often used in supermarkets or other
large commercial centers. Combined
with the POS system made up of point
of sale brings the professionalism and
modern.
3. Desktop scanner
A type of compact scanner isconnected to a computer regularly as a
peripheral device. Desktop type usually
only 1-D barcode scan and used for
office work, administrative agencies that
wish to scan bar codes on paper
documents.
4. Format card reader, coupon,
my qut m vch laser gm:
My qut Laser c th
c cc m vch mt phm
vi khong cch rng. V vy,
khng ging nh my qut
CCD, c th c lu gi
ti mt khong cch t m
vch. Do , h l ch yu
a thch qut tm xa.
Cc li ch khc ca
laser my qut l h c th
c cc m vch c di
di hn. My qut CCD ch
c th c m vch ca ba
hoc bn inch chiu di hoc
nh hn.
My qut laser l rt d
dng x l. Ngay c
ngi vn hnh cha qua
o to c th s dng n
m khng c bt k vn .
Ngy nay c hai my qut laser v
my qut CCD c u tin dng
bi nhiu doanh nghip. Mc d
cc my qut laser v cm bin
CCD c thun li theo cch
ring ca h, y l mt s quan
im so snh v li ch ca n.
2. Dng quy hay bn:
Dng bn l loi 2-D barcode
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document:
As 2-D scanner uses laser beam
scanning and may range far and wide.
This type of scan speed of up to over
1000 scans / second. Format scanners
used to read cards, bills, documents and
forms are diverse. Some types of large-
sized stands but also the type of
compact desktop can be rotated, etc ...
Can use this scanner at the
checkout counter in the Club, bars,
restaurants as barcode tags are used as
membership cards.
5. Wireless Scanner
Like mother cradling the phone
type, this machine includes two parts:
one part connected to the computer (as
parent machine) and the other is a
wireless scanner to use rechargeable
batteries. Type this scanner to scan bar
codes on most items that we can not
"concrete" it on the checkout counter.
For example, a barcode scanner on the
"fridge". Certainly we must use this type
of scanner because I can not bring to
the checkout counter refrigerator is.
6. Type Portable Data TerminalThis is a desktop RFID wireless
technology that the company sells
scanner s dng chm tia sng
laser qut vi tc rt cao, c th
qut ln n tc 2000
scans/second. Vi tc ny, my
qut rt nhy v c th qut c
cc loi m vch km cht lng.
Dng my qut bn thng
c dng trong cc siu th hay
cc trung tm thng mi c ln.
Kt hp vi h thng POS to
thnh im bn hng mang tnh
chuyn nghip v hin i.
3. Dng Desktop:
L loi my qut nh gn
c kt ni thng xuyn vi
my vi tnh ging nh l mt thit
b ngoi vi. Dng Desktop thng
ch qut c m vch 1-D v
c s dng cho cc cng vic
vn phng, cc c quan hnh
chnh c nhu cu qut m vch
trn giy t ti liu.
4. Dng c th, coupon, ti
liu:
L loi my qut 2-D s dng
chm tia laser v c tm qut xa v
rng. Tc qut ca loi ny ln
n trn 1000 ln c/giy. Dng
my qut dng c th, phiu,ti liu c hnh thc rt a dng.
C loi c kch thc ln c chn
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equipment to our bar code called
"machine inventory." The Data Terminal
collects and store data in its memory.
Then you can access data in computer
or download to your computer for
processing. Differences between Data
Terminal and type of machine " mother
cradling" is acting as a terminal client,
Firmware and can be programmed for
data collection, and machine " mother
cradling" acts as a scanner conventional
hand-held, ie data collected is
transmitted directly to a computer.
Therefore it is classified, not according
to Handheld Scanner RFID technology.
Portable Data Terminal is used in the
system inventory, inspection of goods
on the shelves or collect data in areas
where no computer.
7. Industrial Barcode Scanner
Format scanner used to test
industrial goods produced at the output
of the conveyor. Since it knows the
exact number, commodity code for each
product, saving labor and time for
product testing. This form has very high
accuracy, is designed like hanging
spotlights. Emitted light beam isscanned very deep domain and large
government, can scan multiple barcodes
ng nhng cng c loi nh gn
bn c th xoay c.
C th s dng loi my qut
ny cc quy tnh tin trong cc
Club, quy Bar, ca hng n ung
khi th barcode c s dng nh
l th hi vin.
5. Dng khng dy
Ta nh loi in thoi "M
bng con", loi my ny gm 2
phn: mt phn ni vi my tnh
(coi nh my m) v phn kia l
my qut khng dy s dng Pin
sc. Loi my qut ny dng
qut m vch trn cc mn hng
ln m ta khng th "b" n v
quy tnh tin c. Th d: qut
m vch trn 1 ci "t lnh". Chc
chn ta phi dng loi my qut
ny v ta khng th mang t lnh
n quy tnh tin c.
6. Dng Portable Data
Terminal
y l dng my trm theo
cng ngh khng dy RFID m cc
cng ty chuyn bn cc thit b m
vch ca chng ta thng gi l
"my kim kho". Cc Data Terminalthu thp d liu v lu tr vo b
nh ca my. Sau c th truy
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in the bright areas. Used primarily for
industrial parks, factories producing
goods on conveyor belts. This scanner
can also be arranged in the warehouse
as shown at right. Then each a package
must be brought to light by the
government of the scanner and
therefore the information recorded on
the package. Used in transportation and
delivery.
8. Barcode Slot Reader
Colloidal barcode card with
magnetic stripe and smart card
applications in automatic identification
technologies such as Access Control
systems to open systems Attendence
for Time Attendance, Human Resource
Management. The difference between a
slot machine barcode reader and a
barcode scanner normally is that when
pulling the card barcode and code
reader will be put into effect an electrical
and mechanical effects to open doors,
unlock (Access Control), or codes are
put into a human resource management
software aimed timekeeping and
management staff.
SummaryThe type of scanner, barcode reader is
both an industry built for many purposes,
xut d liu ti my hoc ti v
my tnh x l. S khc bit
gia Data Terminal v loi my
"M bng con" l thit b u cui
hot ng nh mt my trm, c
chng trnh c s v c th theo
hnh thc c lp trnh cho d
liu thu thp, cn loi my "M
bng con" hot ng nh mt my
qut cm tay thng thng, tc l
d liu thu thp c truyn thng
v my vi tnh. Do n c xp
vo loi my qut cm tay ch
khng phi theo cng ngh RFID.
Portable Data Terminal c s
dng trong h thng kim kho,
kim tra hng ho trn cc k hng
hoc thu thp d liu nhng ni
khng c my tnh.
7. Dng my qut cng
nghip
Dng my qut cng nghip
dng kim tra hng ho sn
xut ngay ti u ra ca bng
chuyn. T bit c chnh xc
s lng, m mt hng ca mi
sn phm, tit kim c nhn lc
v thi gian dng kim tra sn
phm. Dng ny c chnh xcrt cao, c thit k treo ging
nh n sn khu. Chm tia sng
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many different applications to serve the
people better in matters of general
management. The investment cost for
each application is not very high, but how
do businesses see the importance and
benefits of barcode technology to invest
in an issue that so far we still unresolved.
Some companies have barcode
technology applications in management
and in administrative proceedings but is
spontaneous and that number is very low
if compared with the number of the
company should have applied the
technology in Vietnam.
pht ra c min qut rt su v ph
rng, c th qut cng lc nhiu
loi m vch trong vng ph sng.
c s dng ch yu cho cc
khu cng nghip, cc x nghip sn
xut hng ho trn bng chuyn.
Loi my qut ny cng c th
c b tr trong kho nh hnh bn
phi. Khi mi mi kin hng
c mang ra u phi qua vng
ph sng ca my qut v do
thng tin trn kin hng c ghi
nhn. c s dng trong vn
chuyn giao hng.
8. Dng ko th
Dng ko th m vch cng
vi th t v th thng minh c
ng dng trong cng ngh nhn
dng t ng nh h thng Access
Control dng m ca, h thng
Time Attendence dng chm
cng, qun l nhn s. S khc
nhau gia mt my qut m vch
dng ko th v mt my qut
vch thng thng l ch khi ko
th m vch, m s c a vo
my c s tc ng mt hiu ng
in v c hc lm m ca, m
kho (Access Control), hoc m sc a vo mt phn mm qun
l nhn s nhm mc ch chm
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cng, qun l nhn vin.
Tm li:
Cc loi my qut, my c m
vch l c mt ngnh cng ngh
c ch to cho nhiu mc ch,
nhiu ng dng khc nhau nhm
phc v cho con ngi tt hn
trong cc vn v qun l ni
chung. Chi ph u t cho mi ng
dng khng cao lm, nhng lm
sao cho cc doanh nghip thy
c tm quan trng v li ch ca
cng ngh m vch c th mnh
dn u t vo l mt vn m
cho ti nay chng ta vn cha gii
quyt c. Mt s cng ty ng
dng c cng ngh my vch
trong qun l v trong th tc hnh
chnh nhng ch l t pht v con
s rt thp nu so vi s lng
cc cng ty l ra nn ng dng cc
cng ngh tin tin ti Vit Nam.