CN110533848A - Interception parallel port cash register print data and the method and system for pursuing and attacking additional information - Google Patents
Interception parallel port cash register print data and the method and system for pursuing and attacking additional information Download PDFInfo
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- CN110533848A CN110533848A CN201910727279.6A CN201910727279A CN110533848A CN 110533848 A CN110533848 A CN 110533848A CN 201910727279 A CN201910727279 A CN 201910727279A CN 110533848 A CN110533848 A CN 110533848A
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- Prior art keywords
- print data
- cash register
- printer
- superadd
- sent
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Classifications
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07G—REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
- G07G1/00—Cash registers
- G07G1/0018—Constructional details, e.g. of drawer, printing means, input means
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07G—REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
- G07G1/00—Cash registers
- G07G1/12—Cash registers electronically operated
Abstract
The present invention relates to interception parallel port cash register print data and pursue and attack the method for additional information and the cash register print system using parallel port cash register.The method is equipped with the bridgt circuit based on FPGA between cash register and printer, bridgt circuit intercepts and captures the original print data that cash register is sent to printer and is transmitted to printer, in the matching intercepted and captured with carry out insertion position critical field in repeating process, cash register is controlled when successful match to stop sending original print data, corresponding superadd-print data are sent to printer, cash register is controlled after being sent and restores to send original print data to printer.The system can be used for implementing method of the invention, including cash register and printer, and the bridgt circuit based on FPGA is equipped between the cash register and printer.The present invention can be improved the accuracy of supplement information print position on receipt, improve the working efficiency of equipment.
Description
Technical field
The present invention relates to the methods for intercepting parallel port cash register print data and pursuing and attacking additional information, further relate to for implementing this
The cash register print system using parallel port cash register of kind method.
Background technique
The basic framework of the existing super cash register system of quotient is that cash register (for example, POS machine) by cable is directly connected to printer
And display device, cash register acquire and are determined in process of exchange Transaction Information, generate bill (for example, consumption receipt) or invoice
Print data (or original print data) be sent to printer and carry out paper printing, or bill information is shown in client simultaneously
Show and shown on device, so that client checks.
But current businessman is often desirable to show the respective two-dimensional code of businessman and marketing message (for example, member on receipt
Information or sales promotion information), this additional two dimensional code and marketing message are generated by cash register, need to insert by certain means
Enter or add in original print data, is formed for the practical print data for printing (or display etc.).
According to the above-mentioned prior art, to realize that function that is above-mentioned while showing supplement information, the equipment for needing to be equipped with are multiple
Miscellaneous, data processing amount is big, and resource occupation is more, makes troubles to user.
A kind of feasible thinking pursued and attacked is solved the problems, such as in the case of avoiding and complex device and processing mass data is added
It is that bridge system is set between cash register and printer, the print data of cash register is intercepted by bridge system, it is additional additional
Information, control printer print the receipt comprising supplement information.
Existing bridging technology is mostly SCM Based design scheme, and by single-chip microcontroller sending and receiving data, single-chip microcontroller passes through PHY
Chip receives the usb data after parsing, then by processing forward to printer.
However, in the environment of the printer of parallel port, to the setting position that information is printed upon receipt will be pursued and attacked, it is necessary to receive
Silver-colored machine can suspend during sending and consuming bill in any one position sends data to parallel port printer, waits and adding
The transmission and printing of information, in parallel port, printer receives and is continued to send other again by cash register after completing to pursue and attack the printing of information
Print data.Since single-chip microcontroller is the structure that sequence executes, the data that batch processing is intercepted and captured are needed when being inserted into supplement information
It takes a long time and the critical field data of insertion position is matched, cannot timely and accurately control cash register pause hair
Supplement information position on the receipt for sending print data, therefore actually printing is very inaccurate, even results in and fails to print to chase after
The information added, seriously affects customer experience.Simultaneously as simultaneously have bi-directional data transmission in jaws equipment, and single-chip microcontroller is in two-way number
There is apparent weak tendency according to quick interaction aspect, unless setting is directed to the dedicated IP kernel of parallel protocols on single-chip microcontroller, otherwise in reality
Very big problem will be encountered in terms of existing two-way communication.
In addition, at present the super mode for obtaining retail shop's consumption of many quotient still in such a way that retail shop manually reports, this
Sample can make data report inaccuracy, have delay, and market is also required to by the consumption of so many people manual entry retail shop, work
Make many and diverse uninteresting and at high cost.
Summary of the invention
In order to solve the above technical problems, the present invention provides interception parallel port cash register print data and pursuing and attacking additional information
Method additionally provides the cash register print system using parallel port cash register for implementing this method, to improve additional letter on receipt
The accuracy for ceasing print position, improves the working efficiency of equipment.
The technical scheme is that interception parallel port cash register print data and the method for pursuing and attacking additional information, in cash register
The bridgt circuit based on FPGA is equipped between machine and printer, the Parallel Interface Communication for establishing bridgt circuit input terminal and cash register connects
It is connected with the Parallel Interface Communication of bridgt circuit output end and printer, what bridgt circuit intercepted and captured that cash register sends to printer original beats
Printing evidence is simultaneously transmitted to printer, is intercepting and capturing in repeating process, to the original print data intercepted, is matching according to superadd-print
The matching for carrying out insertion position critical field is set, printer emulation issues pause to cash register and sends print data when successful match
Signal, cash register stops sending original print data, and bridgt circuit sends corresponding superadd-print data to printer, additional
After print data is sent, printer emulation to cash register send restore send print data signal, cash register restore to
Printer sends original print data, and bridgt circuit restores the intercepting and capturing and forwarding to original print data.
The original print data intercepted and captured can be sent to computer platform by the bridgt circuit, by computer platform into
Row related data statistics and analysis, for example, the daily sales and sales volume etc. of each retail shop or each commodity, and various systems can be carried out
Meter analysis, forms monthly, season and annual returns and trend analysis figure etc..
The FPGA receives superadd-print configuration and superadd-print data from ARM preferably using ARM as host computer, will
The original print data of intercepting and capturing is sent to ARM, is sent to computer platform by ARM.
The superadd-print data generally include the related two-dimensional code data of businessman.
Using the cash register print system of parallel port cash register, it can be used for implementing any one interception parallel port disclosed by the invention and receive
Silver-colored machine print data and the method for pursuing and attacking additional information, including cash register and printer, set between the cash register and printer
There is the bridgt circuit based on FPGA, establishes Parallel Interface Communication connection and the bridgt circuit output end of bridgt circuit input terminal and cash register
It is connect with the Parallel Interface Communication of printer, bridgt circuit is intercepted and captured the original print data that cash register is sent to printer and is transmitted to and beats
Print machine is being intercepted and captured in repeating process, to the original print data intercepted, is carrying out insertion position pass according to superadd-print configuration
The matching of key field, printer emulation issues the signal that pause sends print data to cash register when successful match, and cash register stops
Original print data is only sent, bridgt circuit sends corresponding superadd-print data to printer, and superadd-print data have been sent
Bi Hou, printer emulation send the signal for restoring to send print data to cash register, and cash register restores to send to printer original
Print data, bridgt circuit restore the intercepting and capturing and forwarding to original print data.
The system is also provided with computer platform, and the bridgt circuit connects the computer platform, by what is intercepted and captured
Original print data is sent to computer platform, carries out related data statistics and analysis by computer platform.
Interface for the Parallel Interface Communication is 25 needle D-shaped interfaces, between the cash register and bridgt circuit and described
The connection of DB25 data line is all made of between bridgt circuit and printer.
It, can be using switching to other non-standard interfaces (non-25 needle D-shaped interface, than if any one is the interfaces of 36 needles)
Circuit (converter) is converted into 25 needle D-shaped interfaces (standard interface).
The bridgt circuit preferably includes FPGA and ARM, and the FPGA receives the addition from ARM using ARM as host computer
The original print data of intercepting and capturing is sent to ARM by printing configuration and superadd-print data, described in the input terminal of the FPGA is constituted
The input terminal of bridgt circuit, the output end of the FPGA constitute the output end of the bridgt circuit.
The ARM can be equipped with network communication interface and/or network communication module, by wired and or wireless communications side
Formula accesses computer communication network, and the original print data intercepted and captured is sent to computer by computer communication network and is put down
Platform.
The FPGA may include:
Data acquisition module is sent out for intercepting and capturing the original print data of cash register transmission, and by the original print data intercepted and captured
It send to host computer；
Judgment module is pursued and attacked, for judging whether should to carry out the superadd-print of additional information, configuration identification is original to be beaten according to pursuing and attacking
Superadd-print data insertion locations of the printing in, when identify reach superadd-print data insertion locations when, generate and to chasing after
It beats control module and marking signal is pursued and attacked in abnormality diagnosis module transmission；
It pursues and attacks control module: for controlling and coordinating the printing of original print data and superadd-print data, sentencing when receiving to pursue and attack
Disconnected when pursuing and attacking marking signal of module, control cash register pause send original print data, and the addition that host computer is sent is beaten
Printing is according to printer is sent to, and after having sent, control cash register restores the transmission of original print data；
MUX module: for selecting selection output superadd-print data or original print data, corresponding output channel is connected.
The beneficial effects of the present invention are: carrying out register data due to combining the bridge system to be formed with ARM using FPGA
It intercepts and captures and pursues and attacks, execution speed is fast, realizes flexibly, improves the accuracy of supplement information print position, avoid supplement information
Negative effect of the position confusion to client；Due to using parallel work-flow, consumption receipt data (original print number can obtained
According to) while the data can be uploaded to host computer carry out other operations, these data can be sent by host computer
To the computer system (merchant platform) of businessman, collects and count automatically by computer system, without manually acquiring each retail shop
Sales situation, improve the timeliness, accuracy and working efficiency of data；Original print data is carried out due to using MUX
Switch with the output of superadd-print data, avoid the interference between different data or obscure, further ensures and print
Receipt quality.
Detailed description of the invention
Fig. 1 is system organigram of the present invention；
Fig. 2 is bridgt circuit construction and flow diagram of the present invention.
Specific embodiment
Referring to Fig. 1, cash register print system of the invention is existing with FPGA(Field-Programmable Gate Array
Field programmable gate array or field programmable gate array) and ARM(ARM processor) combination form bridgt circuit, connect
Between cash register and printer, the input terminal and output end of the FPGA is parallel port, and 25 needle D-shaped interfaces usually can be used
(DB25), the corresponding parallel port that cash register and printer (referring to fig. 2) and are respectively connected by respective DB25 data line, for connecing
The print data for receiving cash register sends the print data that supplement information is added after bridge joint is handled to printer.It is described
FPGA and ARM communication connection, can be set and realize this communication connection for the internal bus of intercommunication, and the FPGA is received
Pursuing and attacking configuration and need the additional information pursued and attacked from ARM, the configuration of pursuing and attacking according to ARM pursue and attack field before insertion position
Matching, in successful match to cash register issue pause send print data signal, and request or wait ARM send add
Print data, the superadd-print data transmission that ARM is sent control printer in corresponding position and print additional letter to printer
Breath issues the information for continuing to send print data to cash register after receiving this superadd-print end signal of ARM, so as to
Send printer to, control printer continues to print, finally print comprising supplement information according to the print data of cash register
Complete receipt.
Above-mentioned print data (print data including supplement information) can be sent to according to corresponding agreement by FPGA aobvious
Show that device is shown, Email or the wechat etc. of client can also be sent to e bill file.According to setting, papery is small
Ticket, display are shown and e bill etc. can use simultaneously, can also be only with one or more.
The system has 2 operating modes, is intercepting and capturing mode and to pursue and attack mode respectively.
Intercepting and capturing mode: it is exactly that FPGA receives the print data that cash register is sent, is immediately sent to the print data received
Printer, it is said herein to be sent to printer immediately, a true line can be used cash register inside FPGA in practice
All signals at end are connected at the corresponding signal location of printer side, are also possible to forward after receiving.
Pursue and attack mode: in the place for needing to pursue and attack the supplement informations such as two dimensional code, FPGA is logical by some parallel port signal conditions
Know that the data of cash register pause at this time are sent, under the control of ARM, the print data of supplement information is sent to FPGA, FPGA
Supplement information is sent into printer again, after pursuing and attacking, reenters intercepting and capturing mode.
FPGA connects between cash register and consumption receipt printer, and cash register sends original print data according to parallel protocols
(consumption or transaction data), FPGA sends these data to printing while receiving the print data that cash register is sent
Machine, when carrying out pursuing and attacking the supplement informations such as two dimensional code and text, FPGA is by the printing of the supplement informations such as two dimensional code and text
Data are sent to printer.
FPGA realizes that the inside structure of above-mentioned function and process can be found in Fig. 2.
The main functional modules of the FPGA include: Data acquisition module, pursue and attack judgment module, pursue and attack control module,
FIFO memory module, host computer communication module, abnormality diagnosis module and MUX module.Wherein:
Data acquisition module: for intercepting and capturing the original print data of cash register transmission, the parallel port of acquisition connection cash register is (generally
Collected data are temporarily stored in the inside FIFO(FIFO memory of the module by DB25) data) in, until number in internal FIFO
Reach when there are data in certain amount or inside FIFO and being written more than all not new data in a time range according to amount,
Then all data in internal FIFO are sent to host computer (ARM), can guarantee data that host computer is taken every time all in this way
Be comparison in real time and be current consumption receipt partial data.
Pursue and attack judgment module: for judging whether should to carry out the superadd-print of additional information, acquisition connection cash register and
Mouth (generally DB25) data, but collected data are stored and forwarded unlike Data acquisition module, but, root
Setting is pursued and attacked according to from ARM, current data is compared or matched with location data (critical field) is pursued and attacked, such as current number
According to (byte number can configure) and pursue and attack location data matching, then generate and to pursue and attack control module and abnormality diagnosis module hair
It send and pursues and attacks marking signal.
It pursues and attacks control module: for controlling and coordinating the printing of original print data and superadd-print data, being chased after when receiving
When pursuing and attacking marking signal of judgment module is beaten, printer emulation sends pause signal (pause sends data-signal) to cash register,
It controls cash register pause and sends original print data, wait host computer to send the superadd-print data for needing to pursue and attack, by host computer
The superadd-print data sent are stored in superadd-print data FIFO(FIFO memory) in, it waits printer that can receive and beats
Printing according to when, the print data for being stored in superadd-print data FIFO is all sent to printer, after having sent, simulation printing
Machine is sent to cash register restores to send data-signal, and notice cash register continues to send original print data.
Superadd-print data FIFO: for storing the superadd-print data sent from host computer.
Host computer communication module: for the communication with host computer (ARM), Content of Communication is mainly that operating mode configures (only
Intercept and capture or intercept and capture plus pursues and attacks), pursue and attack position configuration and superadd-print data etc..
Abnormality diagnosis module: the case where for diagnosing the abnormal work of whole system or state, for example, after system starting,
Judge whether host computer is in system operation irregularity state by the heartbeat signal between host computer, in the event of system
Starting is abnormal, which can generate a reset host computer signal, re-powers host computer power-off a period of time again；When being in
During pursuing and attacking, host computer cannot generate the superadd-print data of two dimensional code etc., but this for some reason (host computer suspension)
When master system it is (having heartbeat signal output) working properly, which can also generate a signal to notify FPGA is exited to pursue and attack
Mode is directly entered an intercepting and capturing mode, but does not reset host computer here, is specifically as follows, and receives and pursues and attacks pursuing and attacking for judgment module
Abnormal timing is pursued and attacked in marking signal starting, the interface data of monitoring or acquisition and host computer, is being more than not receive after setting time
To host computer superadd-print data when, be judged as superadd-print exception, to pursuing and attacking control module and host computer while sending extensive
Operating mode signal is intercepted and captured again, is pursued and attacked control module according to recovery and is intercepted and captured operating mode signal imitation printer to cash register transmission
Continue the signal of transmission print data, host computer sends the stream of superadd-print data according to intercepting and capturing operating mode signal cancellation is restored
Journey.
Superadd-print data can be pre-stored in ARM, can also request platform (businessman's local area network or cloud platform etc.) with ARM
It sends over.
MUX module: for selecting the output of a selection superadd-print data and original print data, respective inner channel is carried out
With the switching of output end interface connection status, selection allows the original print data from cash register still to allow chasing after from host computer
Print data is added to be sent to printer.
The original print data received can be sent in the state of by parsing or without parsing by ARM
Merchant platform, can also final printing number by ARM by the original print data received after being inserted into superadd-print data
According to being sent to platform.
Marking signal can will be pursued and attacked by superadd-print module while be sent to ARM, ARM receives superadd-print mark letter
Number backward FPGA issues superadd-print data.
Receipt alleged by the present invention refers to the transaction vouchers such as bill and invoice such as market consumption receipt.
It is disclosed by the invention it is each preferably with optional technological means, unless otherwise indicated and one preferably or can selecting technology hand
Section is that further limiting for another technological means is outer, can form several different technical solutions in any combination.
Claims (10)
1. interception parallel port cash register print data and the method for pursuing and attacking additional information, are equipped between cash register and printer and are based on
The bridgt circuit of FPGA, establish bridgt circuit input terminal and cash register Parallel Interface Communication connection and bridgt circuit output end with print
The Parallel Interface Communication of machine connects, and bridgt circuit intercepts and captures the original print data that cash register is sent to printer and is transmitted to printer,
It is intercepting and capturing in repeating process, to the original print data intercepted, is carrying out insertion position keyword according to superadd-print configuration
The matching of section, printer emulation issues the signal that pause sends print data to cash register when successful match, and cash register stops hair
Original print data is sent, bridgt circuit sends corresponding superadd-print data to printer, after superadd-print data are sent,
Printer emulation sends the signal for restoring to send print data to cash register, and cash register restores to send original print number to printer
According to bridgt circuit restores the intercepting and capturing and forwarding to original print data.
2. the method as described in claim 1, it is characterised in that the bridgt circuit sends the original print data intercepted and captured
To computer platform, related data statistics and analysis is carried out by computer platform.
3. the method as described in claim 1, it is characterised in that the superadd-print data include the two-dimentional yardage of correlation of businessman
According to.
4. method a method according to any one of claims 1-3, it is characterised in that the FPGA is received using ARM as host computer and come from ARM
Superadd-print configuration and superadd-print data, the original print data of intercepting and capturing is sent to ARM, computer is sent to by ARM
Platform.
5. using the cash register print system of parallel port cash register, including cash register and printer, it is characterised in that the cash register and
It is equipped with the bridgt circuit based on FPGA between printer, establishes Parallel Interface Communication connection and the bridge of bridgt circuit input terminal and cash register
The Parallel Interface Communication for connecing circuit output end and printer connects, and bridgt circuit intercepts and captures the original print number that cash register is sent to printer
According to and be transmitted to printer, intercept and capture and repeating process in, to the original print data intercepted, according to superadd-print configure into
The matching of row insertion position critical field, printer emulation issues the letter that pause sends print data to cash register when successful match
Number, cash register stops sending original print data, and bridgt circuit sends corresponding superadd-print data, superadd-print to printer
After data are sent, printer emulation sends the signal for restoring to send print data to cash register, and cash register restores to printing
Machine sends original print data, and bridgt circuit restores the intercepting and capturing and forwarding to original print data.
6. system as claimed in claim 5, it is characterised in that be additionally provided with computer platform, the bridgt circuit connects the meter
Machine platform is calculated, the original print data intercepted and captured is sent to computer platform, related data statistics is carried out by computer platform
And analysis.
7. system as claimed in claim 5, it is characterised in that the interface for the Parallel Interface Communication is 25 needle D-shaped interfaces, right
Non- 25 needle D-shaped interface is converted into 25 needle D-shaped interfaces using built-up circuit, between the cash register and bridgt circuit and described
The connection of DB25 data line is all made of between bridgt circuit and printer.
8. the system as described in claim 5-7, it is characterised in that the bridgt circuit includes FPGA and ARM, the FPGA with
ARM is host computer, receives superadd-print configuration and superadd-print data from ARM, the original print data of intercepting and capturing is transmitted
To ARM, the input terminal of the FPGA constitutes the input terminal of the bridgt circuit, and the output end of the FPGA constitutes the bridge joint electricity
The output end on road.
9. system as claimed in claim 8, it is characterised in that the ARM is equipped with network communication interface and/or network communication mould
Block accesses computer communication network by wired and or wireless communications mode, the original that will be intercepted and captured by computer communication network
Beginning print data is sent to computer platform.
10. system as claimed in claim 8, it is characterised in that the FPGA includes:
Data acquisition module is sent out for intercepting and capturing the original print data of cash register transmission, and by the original print data intercepted and captured
It send to host computer；
Judgment module is pursued and attacked, for judging whether should to carry out the superadd-print of additional information, configuration identification is original to be beaten according to pursuing and attacking
Superadd-print data insertion locations of the printing in, when identify reach superadd-print data insertion locations when, generate and to chasing after
It beats control module and marking signal is pursued and attacked in abnormality diagnosis module transmission；
It pursues and attacks control module: for controlling and coordinating the printing of original print data and superadd-print data, sentencing when receiving to pursue and attack
Disconnected when pursuing and attacking marking signal of module, control cash register pause send original print data, and the addition that host computer is sent is beaten
Printing is according to printer is sent to, and after having sent, control cash register restores the transmission of original print data；
MUX module: for selecting selection output superadd-print data or original print data, corresponding output channel is connected.
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| CN113253949A (en) * | 2021-02-05 | 2021-08-13 | 深圳怡化电脑股份有限公司 | Printing control method and device |
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| CN105321272A (en) * | 2015-11-04 | 2016-02-10 | 北京果皮移动科技有限公司 | Method and device of printing dynamic two-dimensional codes according to cashier's machine transaction data |
| CN107301535A (en) * | 2017-06-13 | 2017-10-27 | 福建惠联众网络科技有限公司 | It is a kind of that the system that traditional POS supports mobile payment is realized by bill printing |
| CN107415489A (en) * | 2017-06-29 | 2017-12-01 | 厦门汉印电子技术有限公司 | A kind of method and its printer of expanding printing content |
| CN109491623A (en) * | 2018-11-14 | 2019-03-19 | 北京三快在线科技有限公司 | Print data processing method and device, electronic invoice generation method and server |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111756799A (en) * | 2020-05-20 | 2020-10-09 | 拉扎斯网络科技（上海）有限公司 | Method and device for processing printing information |
| CN111756799B (en) * | 2020-05-20 | 2023-04-07 | 拉扎斯网络科技（上海）有限公司 | Method and device for processing printing information |
| CN113253949A (en) * | 2021-02-05 | 2021-08-13 | 深圳怡化电脑股份有限公司 | Printing control method and device |
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