First, project background
The commercial sale real-time service system (POS)
realizes the commercial automation important foundation.
Presently, our country various commercial bank system has all
established respective tradition with the aid of the POS system which
wired turns on, but along with the customer fund account transfer, the
settlement, the payment quantity unceasingly increases and the demand
diversifies day by day, the POS system wired turns on the shortcoming
further presents.
At present, many small merchants and expend the place but not to
be able to use the POS terminal as a result of the communication lines
question, this causes the bank card the use to concentrate in some
large-scale markets and the upscale expense place, thus has lost the
massive opportunities which expends with the bank card. At
present uses wired turns on the way the POS machine main deployment in
the large-scale guesthouse, the market and the supermarket, but in
other small place and so on guesthouse, supermarket, dining shop,
exposition, because receives the location and the wire communication
line limit, wired causes to turn on the way POS machine to be unable
the disposition, holds the card to expend very is difficult to
realize.
POS machine because receives wired turns on the way the limit,
cannot according to need massively to carry on the disposition, the
bank card expense is limited in the certain scope. Specially is
unable in the line-wire communication not convenient place wired POS
system to use, the serious restriction has provided the real-time
service for the cardholder the demand, also is unable to guarantee the
cardholder is rapid, accurate, the prompt account transfer and
settlement bookkeeping processing.
The fine duplicate joyful science and technology in view of the
present line-wire communication POS system existence question and the
insufficiency, promoted has realized the solution with the aid of the
GPRS migration data communication male network platform which POS
machine turned on. Wireless turns on the way based on GPRS POS
machine to be possible to solve traditional POS only to be able in the
fixed situation use question, causes the POS terminal no longer to
receive the limited communications network the limit. Moreover,
GPRS wireless turns on the motion payment technology which unifies
with each kind of payment equipment is the current development
direction. If in wireless sets at GPRS to turn on the module
motion POS machine to be possible to apply to each kind of motion
charge, for example visits charges the public business cost, the
rental car pays expenses, the traffic police fine and so on.
Moves POS especially to be suitable to matching delivers
central, the passenger transportation ticket clerk center, the tax
revenue department, the express delivery company, the motion vending
hall, the dining room, outside sells and situation and so on
electronic commerce transaction.
Second, existing wired turns on the way
POS will be the present various markets, the hotel, the
gas station and so on widely provides brushes the card expense service
the auxiliary means, is located the user credit card data which places
such as market, gas station POS machine will obtain (card number,
service material and so on) through the communication link bequeath on
the bank card service processing system, will return after the
processing information to POS machine, thus will complete the user to
brush the card expense service. In order to realize the above
data exchange process, and the bank main engine must carry on the data
communication in between POS machine. At present uses most
widespread POS machine to turn on the way is wired turns on the way,
but wired turns on the way mainly to have two kinds: One, to a
digit dialing turns on the way and based on the telephone network spot
turns on the way based on the DDN special line.
1st, telephone digit dialing way: After the user brushes
the card, POS machine turns on the bank data central through the digit
dialing, puts through rear-drive delivers the transaction data.
This way most major problem is has the very big hidden danger in
the security, because the telephone digit dialing secrecy is worse,
the telephone dialling tone possibly can reveal the user the password.
Moreover, when use telephone digit dialing way, the customer
every time brushes card, POS machine on digit dialing, needs 10-20
second time establishment connection, therefore each transaction time
is longer. At the same time, as a result of the POS machine use
market service telephone, is easy to have the line, the secure energy
balance, dials the outwire frequently to have the difficulty, affects
the transaction quality.
2nd, special line way: After large and middle scale
supermarkets many POS machine often uses the RS232 connection
networking to connect the bank data central through a special line.
The special line way merit is the line transmission quality
higher, but its shortcoming is the DDN special line month rent more
expensive, but the data transmission quantity was lower, reduced the
resources use factor. The DDN at the beginning of special line
the attire spends approximately is 5000.00 - 10000.00 Yuan, each month
of operating cost approximately is 800.00 - 1200.00 Yuan. (The
DDN special outlay regards telecommunication concrete standard to
decide).
Third, GPRS wireless turns on the plan the characteristic
The GPRS wireless data transmission has the equipment
cost lowly, the data transmission safe is reliable, characteristic and
so on use nimble convenience, extremely suits POS machine on the
application. At present, China moves the GPRS commercial service
started comprehensively to start, the association passes also promotes
the CDMA2000-1X data service. The migration data communication
uses the IPOverPPP realization data terminal high speed, long-distance
turns on, may provide the macrozonality the wireless IP connection, is
suitable to the profession and the enterprise level user development
wireless data application, for is dispersible long-distance 接入�
wireless provides the high performance to turn on.
1st, nimbly disposes the POS equipment, the expansion brushes
the card range of service. GPRS wireless turns on the biggest
superiority is enable the existing POS system to get rid of the wire
communications network the restriction, because the GPRS cover scope
is broad, uses wireless turns on POS machine the place which may use
in the handset all to be possible to apply, but conveniently
disposition Yu Gezhong situation.
2nd, the transmission speed is high. At present, the GPRS
actual data transmission speed about 40KBPS, future might achieve
171Kbps, but generally each time will brush the card service the data
transmission quantity in several K to 10Kbps between.
3rd, the system transmission capacity answers the purpose.
The GPRS technology specially suits to POS system this kind
needs to transmit the massive burst characteristics data situation.
4th, has the competitive ability the performance price compared
to, as a result of the GPRS service 按数 according to the current
capacity charge, based on GPRS POS scheme according to transmission
expense extremely inexpensive, the operation expense comparatively
line-wire communication POS system is inexpensive, if uses the China
mobile communication GPRS service, every time transmits a time of
information, its transaction data expense only needs 0.05 ~ 0.10 Yuan
(month working cost not to count).
5th, the enhancement 接é€çŽ? reduces the transaction time.
After the POS machine terminal turns on the GPRS network, is in
one kind as necessary in the striation condition, transaction
extremely convenient, the speed was quicker, has guaranteed the
transaction time and the transaction quality. May solve again
the dialing rate high problem well.
6th, reduced network construction cost. Wireless uses GPRS
to turn on the technology, because does not need to lay down the wire
line, may reduce the construction cycle.
Fourth, concrete solution
Has GPRS the wireless data transmission function motion
POS machine to use the GPRS/GMS network which China moves to carry on
the exchange of information. Moves POS machine and the GSM
基站 correspondence, the POS transmission "the POS transaction
requested the data packet" from 基站 transmits to the SGSN pitch
point, SGSN and gateway support pitch point GGSN carries on the
correspondence, GGSN carries on corresponding processing to the
integrated data, transmits to the bank end router, delivers on again
the bank main engine after the firewall. The data packet
processes which after the bank main engine returns by way of the old
route, returns to moves on POS machine, completes the bank to the
migration, moves to the bank data exchange, has realized the POS
system wireless data transmission. At the same time, uses second
tunnel agreement L2TP to establish the enterprise hypothesized special
network in the GSMGPRS network. GPRS wireless turns on the way
to have the good extension and the flexibility, may under the way
complete the POS transaction in wireless (/digit dialing)
In the above plan, the bank end uses the line and the
connection which the migration provides. Respectively moves the
STK card which the POS machine use mobile communication company
unifies, simultaneously the banking system center carries on the
registration to each spot, preserves the correlation data in order to
recognition and maintenance processing. POS machine the use STK
card only can use in with the banking system data communication
function. Each POS machine movement original system software and
the application software, support for 24 hours real-time on-line,
realizes the POS machine for 24 hours to provide for the customer
brushes the card service |
