CN201489614U - Fiscal cash register supporting USB interface - Google Patents
Fiscal cash register supporting USB interface Download PDFInfo
- Publication number
- CN201489614U CN201489614U CN2009201480655U CN200920148065U CN201489614U CN 201489614 U CN201489614 U CN 201489614U CN 2009201480655 U CN2009201480655 U CN 2009201480655U CN 200920148065 U CN200920148065 U CN 200920148065U CN 201489614 U CN201489614 U CN 201489614U
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- Prior art keywords
- usb interface
- cash register
- tax
- usb
- data
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a fiscal cash register supporting a USB interface. The fiscal cash register is provided with the USB interface and a USB interface module, wherein the USB interface is connected with a main control CPU by the USB interface module, and the USB interface module is connected with the main control CPU by a parallel interface for data exchange. The fiscal cash register supporting the USB interface supports the reading and writing functions of the USB interface, has the advantages of good stability and high transmission efficiency, uses a U disk to store fiscal data, has large stored data quantity, and is convenient for declaring dutiable goods and operating management of users with various scales.
Description
[technical field]
The utility model relates to a kind of tax-control cash register, particularly a kind of tax-control cash register of supporting USB interface.
[background technology]
Tax-control cash register is the electronic cash register with tax control function, it is developed according to China's national situation, obtained using widely in China, the user who uses tax-control cash register is when the tax authority declares dutiable goods, the main tax control IC-card that adopts is gathered tax-control data, and utilizes subscriber card wherein to carry out the data security transmission between tax-control cash register and tax control cash receiving and management system.Concerning the bigger enterprise of number of transaction every day, its declaration data amount is bigger, and the memory capacity of IC-card is less, obviously is restricted for the storage of the big detailed data of data volume, and inconvenient user declares dutiable goods.After country in 2003 issues the tax-control cash register standard, the communication interface of the tax-control cash register on the market is mainly the RS232 serial line interface, but the stability of RS232 communication interface is poor slightly, its communication speed is also slower, and along with the continuous development and change of computer technology in recent years, the use of serial ports of computers is fewer and feweri, even a lot of in the market computing machines all have not been with serial ports, the substitute is the use USB interface, and utilize USB flash disk as the data mobile memory medium, or even some tax end background management systems are also supported usb mode.
[utility model content]
The purpose of this utility model is: for the development with market adapts, improving existing tax-control cash register employing RS232 serial line interface carries out communication and adopts IC-card to carry out the deficiency of data transfer, a kind of tax-control cash register of supporting USB interface is provided, it is on the function that realizes existing tax-control cash register, increased USB interface, the more interface resource of horn of plenty is provided, has made tax-control cash register can directly connect USB flash disk.
The technical solution of the utility model is achieved in that tax-control cash register is provided with USB interface and usb interface module, and USB interface is connected with master cpu through usb interface module;
In the tax-control cash register of above-mentioned support USB interface, described usb interface module adopts the USB conversion chip to control, and the USB conversion chip is selected CH375 for use.
Than common tax-control cash register, the beneficial effects of the utility model are: increased USB interface, improved the stability and the transfer rate of communication interface, made the tax control cash receiving function support the read-write of USB flash disk, realized plug and play, data carrier is easy to carry; Can store the big tax-control data of data volume, the user can store security requirement height, tax control combined data that data volume is little in the IC-card into, and with security requirement is lower but the detailed data that data volume is big deposit in the USB flash disk, make that the mobile and transmission of data is more convenient, the user of convenient various scales declares dutiable goods and the business handling of the tax authority, has improved work efficiency greatly.
[description of drawings]
Below in conjunction with accompanying drawing in detail concrete structure of the present utility model is described in detail
Fig. 1 is a theory diagram of the present utility model
Fig. 2 is a circuit diagram of the present utility model
Among the figure: a, master cpu; B, usb interface module.
[embodiment]
As depicted in figs. 1 and 2, the utility model supports the tax-control cash register of USB interface to give master cpu a and the power supply of each functional module by Switching Power Supply, each functional module comprises tax-controlling module, memory module, print module, display module, load module, clock module, communication interface module etc., tax-control cash register is provided with USB interface and usb interface module b, USB interface is connected with master cpu a by usb interface module b, makes tax-control cash register possess the USB flash disk read-write capability.Usb interface module b is made up of USB conversion chip U1 and peripheral circuits, and its major function is to finish the data-switching of USB form.Usb interface module b is connected by the parallel port with master cpu a and carries out exchanges data, D0～D8 is 8 position datawires of master cpu a, data-signal sends USB conversion chip U1 to by data line D0～D8, USB conversion chip U1 becomes UD+, the UD-signal of USB form by data-switching, by the 10th pin and the output of the 11st pin of USB conversion chip U1.USB conversion chip in the present embodiment is selected the chip of CH375 model for use.
The user only needed USB flash disk is inserted in the USB interface of tax-control cash register in every month, and tax-control data is transferred on the USB flash disk, directly inserted the tax authority then and supported the computing machine of USB read-write just can demonstrate corresponding tax-control data.
The tax-control cash register of this novel support USB excuse can utilize big external storage device stores tax-control data and the management datas of memory capacity such as USB flash disk or portable hard drive, and the user of convenient various scales declares dutiable goods and operation control.
Described above only is preferred embodiment of the present utility model, and above-mentioned specific embodiment is not to restriction of the present utility model.In technological thought category of the present utility model, various distortion and modification can appear, and the retouching that all those of ordinary skill in the art make according to above description, revise or be equal to replacement, all belong to the scope that the utility model is protected.
Claims (2)
1. tax-control cash register of supporting USB interface, it is characterized in that: tax-control cash register is provided with USB interface and usb interface module, and USB interface is connected with master cpu through usb interface module.
2. the tax-control cash register of support USB interface according to claim 1 is characterized in that: usb interface module employing model is that the USB conversion chip of CH375 is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201480655U CN201489614U (en) | 2009-04-08 | 2009-04-08 | Fiscal cash register supporting USB interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201480655U CN201489614U (en) | 2009-04-08 | 2009-04-08 | Fiscal cash register supporting USB interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201489614U true CN201489614U (en) | 2010-05-26 |
Family
ID=42428484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201480655U Expired - Fee Related CN201489614U (en) | 2009-04-08 | 2009-04-08 | Fiscal cash register supporting USB interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201489614U (en) |
-
2009
- 2009-04-08 CN CN2009201480655U patent/CN201489614U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20120522 Granted publication date: 20100526 |
|
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20141122 Granted publication date: 20100526 |
|
| PP01 | Preservation of patent right |
Effective date of registration: 20141122 Granted publication date: 20100526 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20150522 Granted publication date: 20100526 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20120408 |
|
| EXPY | Termination of patent right or utility model |