CN201084229Y - A tax-control cash register - Google Patents
A tax-control cash register Download PDFInfo
- Publication number
- CN201084229Y CN201084229Y CNU2007201733857U CN200720173385U CN201084229Y CN 201084229 Y CN201084229 Y CN 201084229Y CN U2007201733857 U CNU2007201733857 U CN U2007201733857U CN 200720173385 U CN200720173385 U CN 200720173385U CN 201084229 Y CN201084229 Y CN 201084229Y
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- CN
- China
- Prior art keywords
- tax
- described processor
- cash register
- processor
- interface
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Abstract
The utility model relates to a fiscal cash register, comprising a processor which is used to treat relevant data and send out operation instruction and is connected with a programmable logic controller and a latching controller trough an external bus interface and an IC card reader connected with the processor by a first IC card interface; wherein, the processor is connected with a second IC card interface chip through a general asynchronous transceiver and a printer through at least one serial communication interface. The utility model also comprises a clock chip, a synchronous dynamic random access memory as a memory and a memory used to memorize the operating system and relevant fiscal tax data which is connected with the random access memory; wherein, the clock chip and the synchronous dynamic radon access memory are respectively connected with the processor. The utility model still comprises a crystal oscillator and a reset circuit which are respectively connected with the processor.
Description
Technical field
The utility model relates to a kind of cashing machine, particularly be a kind of cashing machine with tax control function.
Background technology
The cashing machine that uses on market at present all includes display, printer, main frame, keyboard and client's display device, wherein display, printer, keyboard all are connected with main frame by data line, are realized the function of gathering, demonstration and printed tickets by each equipment of host computer control.But these common cashing machines can't be realized tax control, country is carried out tax revenue make troubles, and the tax revenue cost is increased, and cause tax dodging easily, evade taxation.In order to solve the tax control problem, though occurred having at present the cashing machine of tax control function on the market, but generally all be by in existing cashing machine, having added tax-controlling device, as the tax control IC-card, tax control is all carried out in each transaction, but all adopted single-chip microcomputer to control, and adopt MCU to realize the drive controlling of mini-printer in these tax-control cash register inside, so cause the structural system complexity of whole tax-control cash register, cost is crossed problems such as height.
In view of above-mentioned defective, the utility model creator relies on it to be engaged in the experience and the practice of relevant industries for many years, and through concentrating on studies and developing, creates a kind of tax-control cash register with tax control function finally, can handle the tax, commercial occupation at same hardware platform.
Summary of the invention
The purpose of this utility model is, a kind of tax-control cash register is provided, in order to overcome above-mentioned defective.
For achieving the above object, the technical solution adopted in the utility model is, a kind of tax-control cash register is provided, and it comprises: a processor, in order to handle corresponding data and to send operational order to each parts, it links to each other with a programmable logic controller (PLC) and latch controllers by external bus interface;
One IC-card card reader links to each other with described processor by one first IC-card interface chip; Described processor is connected with one second IC-card interface chip by UART Universal Asynchronous Receiver Transmitter;
Described processor is connected with a printer by at least one serial communication interface;
Also comprise: a clock chip and a synchronous DRAM as internal memory, be connected with described processor respectively, a storer in order to storage operating system and corresponding tax-control data is connected with described processor;
Also comprise: a crystal oscillator and a reset circuit are connected with described processor respectively;
Preferable, also comprise: an Ethernet interface, it is connected with described processor by a network interface card;
Preferable, also comprise: a keyboard special, it links to each other by described programmable logic controller (PLC) and latch controllers and is connected with described processor;
Preferable, also comprise: USB master's end interface is connected with described processor;
Preferable, also comprise: a display device, described display device links to each other with described processor by an impact damper;
Preferable, also comprise: a hummer, a customer monitor, gear lock and a cash box all are connected with described processor by an IO interface;
Preferable, described processor is a flush bonding processor;
Preferable, described keyboard special is 87 key special purpose matrix keyboards;
Preferable, also comprise a casing;
Preferable, also comprising a test access port that is used to debug, it is connected with described processor.
Compared with prior art the beneficial effects of the utility model are, this compact conformation, and volume is little, and cost is low.
Description of drawings
Fig. 1 is the structured flowchart of the utility model tax-control cash register;
Embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned.
See also shown in Figure 1, it is the structured flowchart of the utility model tax-control cash register, it comprises: a processor (1), that we adopt is 32 embedded type CPU AT91RM9200 of atmel corp, its built-in safe, stable, reliable (SuSE) Linux OS, in order to handle corresponding data and to send operational order to each parts, it links to each other with a programmable logic controller (PLC) (21) EPM3032 and latch controllers (22) 74LV373 by external bus interface;
One IC-card card reader (73) links to each other with described embedded type CPU AT91RM9200 by one first IC-card interface chip (72) WATCHCORE; Described embedded type CPU AT91RM9200 is connected with one second IC-card interface chip (74) WATCHCORE by UART Universal Asynchronous Receiver Transmitter (17);
Described embedded type CPU AT91RM9200 is connected with a STARMP512MB mini-printer (85) by at least one serial communication interface (84) MAX3232;
Also comprise: the SDRAMW981216 of clock chip (a 4) bq3287 and a 16MB is as the synchronous DRAM (61) of internal memory, be connected with described embedded type CPU AT91RM9200 respectively, also have the SpansionS29GL128 Flash chip (62) of 1 16MB simultaneously, this chip is used for storing BOOT LOADER file, operating system, application program, tax-control data etc.;
Comprise that also a crystal oscillator (51), a test access port (52) (jtag interface) and a reset circuit (53) are connected with described embedded type CPU AT91RM9200 respectively; One Ethernet interface (81), it is connected with described embedded type CPU AT91RM9200 by a network interface card RTL8201 chip (82) mouth;
Also comprise auxiliary element (4), described auxiliary element (4) is: a hummer, gear lock, a cash box, client's display adopt 10 charactron, directly are connected with embedded type CPU AT91RM9200;
What display device (33) adopted is the giant-screen band backlight liquid crystal display of 320*240 dot matrix, is connected on the LCD control interface that described embedded type CPU AT91RM9200 carries by an impact damper (31);
One keyboard (23) adopts the special purpose matrix keyboard of 87 keys, be directly arranged in the surface of casing, be connected with embedded type CPU AT91RM9200 with 74LV373 latch controllers (22) by programmable logic controller (PLC) (21) EPM3032, utilize described keyboard (23) to realize the demand of tax control function among the GB18240, support the GB2312 character library, it has the advantage that is easy to learn and use;
Described IC-card card reader has included IC-card seat and power control circuit, wherein IC-card seat and power control circuit are connected described embedded type CPU AT91RM9200 corresponding ports, and described IC-card data write operation is finished by described WATCHCORE chip;
Programmable logic controller (PLC) in the utility model tax-control cash register (21) EPM3032 is except the control to keyboard (23), the address space reflection of display device (33) and the logic control of clock chip (4) have also been finished, made full use of the abundant resources of described programmable logic controller (PLC) (21) EPM3032, realize some other control function, reduced the use of discrete assembly;
The utility model tax-control cash register embedded type CPU AT91RM9200 can be provided with abundant user interface assets, to adapt to user's different demands.As expanded 1 RS-232 serial communication interface (88) by SIPEX3243, expanded 2 RS-232 interface (86) (87) by MAX3232, be convenient to be connected with electronic scales, electron scanning rifle, handwriting pad etc.; One USB Host interface (83) is set, is convenient to that USB flash disk is declared dutiable goods, USB flash disk software upgrading etc.
The above only is preferred embodiment of the present invention, only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that claim of the present invention limited, revise, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (10)
1. tax-control cash register is characterized in that it comprises: a processor, and in order to handle corresponding data and to send operational order to each parts, it links to each other with a programmable logic controller (PLC) and latch controllers by external bus interface;
One IC-card card reader links to each other with described processor by one first IC-card interface chip; Described processor is connected with one second IC-card interface chip by UART Universal Asynchronous Receiver Transmitter;
Described processor is connected with a printer by at least one serial communication interface;
Also comprise: a clock chip and a synchronous DRAM as internal memory, be connected with described processor respectively, a storer in order to storage operating system and corresponding tax-control data is connected with described processor;
Also comprise: a crystal oscillator and a reset circuit are connected with described processor respectively.
2. tax-control cash register according to claim 1 is characterized in that, also comprises: an Ethernet interface, it is connected with described processor by a network interface card.
3. tax-control cash register according to claim 1 is characterized in that, also comprises: a keyboard special, it links to each other by described programmable logic controller (PLC) and latch controllers and is connected with described processor.
4. tax-control cash register according to claim 1 is characterized in that, also comprises: USB master's end interface is connected with described processor.
5. tax-control cash register according to claim 1 is characterized in that, also comprises: a display device, described display device links to each other with described processor by an impact damper.
6. tax-control cash register according to claim 1 is characterized in that, also comprises: a hummer, a customer monitor, gear lock and a cash box all are connected with described processor by an IO interface.
7. according to claim 1,2,3,4, the described tax-control cash register of 5 or 6 wherein arbitrary claims, it is characterized in that described processor is a flush bonding processor.
8. tax-control cash register according to claim 3 is characterized in that, described keyboard special is 87 key special purpose matrix keyboards.
9. according to claim 1,2,3,4,5,6 or 8 described tax-control cash registers, it is characterized in that, also comprise a casing.
10. tax-control cash register according to claim 1 is characterized in that, also comprises a test access port that is used to debug, and it is connected with described processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201733857U CN201084229Y (en) | 2007-09-27 | 2007-09-27 | A tax-control cash register |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201733857U CN201084229Y (en) | 2007-09-27 | 2007-09-27 | A tax-control cash register |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201084229Y true CN201084229Y (en) | 2008-07-09 |
Family
ID=39626701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201733857U Expired - Lifetime CN201084229Y (en) | 2007-09-27 | 2007-09-27 | A tax-control cash register |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201084229Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112116736A (en) * | 2020-08-12 | 2020-12-22 | 珠海恒宇新科技有限公司 | Authority identification system, method, keyboard and electronic lock |
-
2007
- 2007-09-27 CN CNU2007201733857U patent/CN201084229Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112116736A (en) * | 2020-08-12 | 2020-12-22 | 珠海恒宇新科技有限公司 | Authority identification system, method, keyboard and electronic lock |
| CN112116736B (en) * | 2020-08-12 | 2023-02-28 | 珠海恒宇新科技有限公司 | Authority identification system, method, keyboard and electronic lock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080709 |