Full Barcode Scanner

8/3/2019 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.


2/20

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


3/20

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


4/20

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


5/20

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


6/20

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


7/20

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


8/20

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


9/20

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


10/20

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.


11/20

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:


12/20

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


13/20

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


14/20

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


15/20

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


16/20

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


17/20

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


18/20

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


19/20

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


20/20

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.

Full Barcode Scanner

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