CN201262763Y

CN201262763Y - Tax-controlled cashing machine

Info

Publication number: CN201262763Y
Application number: CNU2008201906634U
Authority: CN
Inventors: 樊礼豪; 陈公仆; 王珍; 张帆; 刘嘉祥
Original assignee: STATE HONGFENG MACHINERY FACTORY
Current assignee: STATE HONGFENG MACHINERY FACTORY
Priority date: 2008-09-05
Filing date: 2008-09-05
Publication date: 2009-06-24
Anticipated expiration: 2018-09-05

Abstract

The utility model provides a tax-control cash register which consists essentially of a tax controller, a mainboard, a printing control board and a universal human-computer interacting module, and is arranged inside a sealed shell. The tax controller is an independent printed plate, integrates a card reading circuit, a clock circuit, a power fail safeguarding circuit and an asynchronous communication circuit, and realizes the functions required by the Tax Controller Specification GB18240.3 through a CPU and embedded software that are burned into a chip. The mainboard consists of STR912MCU and peripheral circuits, finishes human-computer interacting function and interface function, and comprises a primary LCD, a secondary LED, a keyboard, a modem, an Ethernet port, a PC2 port, a UART port and a USB port; the printing control board comprises a CPU, a printing drive circuit, an asynchronous communication circuit and a power source circuit, and controls the printing of tax control invoices through embedded software. The tax-control cash register achieves the universality and interchange goals by utilizing standard and universal modules.

Description

Tax-control cash register

Technical field

The utility model relates to a kind of tax-control cash register, is specifically related to tax control function and the thorough modularization of printing function, independently gets up simultaneously from hardware and software, and main frame only need be responsible for handling the tax-control cash register of man-machine interface and task scheduling function.The technology that the utility model proposes can be widely applied on the tax-control cash register product.

Background technology

At present, when each producer designs tax-control cash register, most of producers realize that the method for tax control function part is that itself and main control chip are integrated on the circuit board, need user interface process, management data management to write with tax control function software, cause the software difficulty bigger, change upgrading difficulty.Though small part producer adopts a slice chip microcontroller with the tax control process software, hardware circuit such as Card Reader circuit, clock circuit, battery charger also do not separate, and product still is in maintenance and the production debugging situation of being difficult to.In addition, printing in the control, some producers or buy general print drive plate, or utilize motherboard to print control, all there is different shortcomings.Adopt general type plate not utilize and carry out software upgrading, the printed invoice tickets sample is difficult to upgrade.In addition, utilizing motherboard to print control has increased the motherboard burden, program complexity, debugging maintenance difficult.Hardware circuit intersects and software is not realized modularization fully, increase product function and have to increase more peripheral cell, can cause the pcb board wiring more so simultaneously, the difficult problem of electromagnetic compatibility is serious day by day, and reliability of products, stability can not get strict assurance.

The utility model content

The purpose of this utility model is a kind of tax-control cash register of design, with tax control function and the thorough modularization of printing function, make hardware and software simultaneously independently, The Design of Tax Controled Device is independently finished all tax control functions, print control panel and also independently finish all printing functions, main frame only need be responsible for handling man-machine interface and task scheduling function.

The technical solution of the utility model: tax-control cash register of the present utility model comprises The Design of Tax Controled Device, prints control panel, is that the motherboard of core is connected with The Design of Tax Controled Device, printing control panel, peripheral hardware, interface board respectively by expansion interface with the microprocessor.

Described The Design of Tax Controled Device is an independent printed board, utilizes a slice CPU and Card Reader circuit, clock circuit, power down protection circuit, asynchronous communication circuit, storer integrated.

It is that 32 ARM core chip STR912MCU, a slice Ethernet control STE100P, a slice ZLG7290 chip are finished keyboard scan and LED control that described motherboard comprises microprocessor.

Described printing control panel comprises single-chip microcomputer, printing character library storage chip.

Described motherboard adopts the UART asynchronous communication interface to be connected with The Design of Tax Controled Device, printing control panel respectively.

Advantage of the present utility model: the utility model uses standard, general module, reaches general exchange purpose, and product reduces maintenance cost greatly and shortens servicing time breaking down or damaging the back and only need change individual components; At manufacture view, it is core with the production of universal component all that universal component makes the production of many moneys product, has simplified product processes, has reduced the handling of goods and materials cost; At design aspect, by appearance part such as better housing, keyboard, displays, be convenient to product up-gradation, the replacement and seriation, put out a new product fast according to the market demand.

Description of drawings

Fig. 1 is a The general frame of the present utility model.

Fig. 2 is the The Design of Tax Controled Device circuit block diagram.

Fig. 3 prints the control panel circuit block diagram.

Fig. 4 is the motherboard circuit block diagram.

Embodiment

Fig. 1 is the overall connection diagram of each module in the utility model.Motherboard is connected with The Design of Tax Controled Device, printing control panel, peripheral hardware, interface board respectively by expansion interface.

Motherboard is connected with the printing control panel with The Design of Tax Controled Device by the UART agreement.Workflow is: the main LCD1 display operation menu that shows of motherboard control, obtain the information that the user keys in from keyboard, the amount of money is presented at the visitor to be shown on the LED2, and the information of will drawing a bill is passed to The Design of Tax Controled Device by communications protocol, after The Design of Tax Controled Device realizes tax control function, performance is returned to motherboard, and motherboard is passed to the printing control panel with invoice information, prints one by it and meets the invoice that GB requires.Motherboard program run μ C/OSII operating system, and on this operating system, run application.Interface board comprises network interface, UART mouth, MODEM/USB.

Figure 2 shows that the circuit diagram of The Design of Tax Controled Device in the utility model.The Design of Tax Controled Device is an independent printed board, utilizes a slice CPU and Card Reader circuit, clock circuit, power down protection circuit, asynchronous communication circuit, storer integrated.Utilize the embedded software of a slice CPU and burned chip internal to realize the The Design of Tax Controled Device function; CPU is 8 single-chip microcomputers.

Whole circuit of realizing tax control function in the The Design of Tax Controled Device printed board, have been comprised; CPU single-chip microcomputer 5964 receives the information of making out an invoice that motherboard sends; by data encrypting and deciphering is finished in the read-write of tax-controlling card and subscriber card, and data are saved in the tax-control data storer, clock circuit provides the perpetual calendar function; clocking error is in 8 seconds/day; in addition, adopt power-fail detection circuit, in case detect power supply power-fail; send interruption, carry out data protection by CPU and handle.This The Design of Tax Controled Device is kept clock circuit work also by reserce cell, satisfies operate as normal requirement in 6 years.The Design of Tax Controled Device has realized the tax control function that " GB18240.3 The Design of Tax Controled Device standard " requires.

Figure 3 shows that and print the control panel circuit diagram.Print control panel and comprise single-chip microcomputer, printing character library storage chip.

Print control panel and receive print command and the print data that motherboard sends over.Carry out according to embedded software, read Chinese character printing character library information in the library stores device, detect the state of black mark and paper, drive the word vehicle and horse reach with paper driving unit to the relevant position, the driving needle driving circuit is exported to printhead by the printhead socket, prints predetermined invoice information.

Figure 4 shows that the motherboard circuit diagram.Motherboard comprises single-chip microcomputer, network interface chip, USB interface chip, power module etc.

Single-chip microcomputer STR912 is powerful, and inside has program and data space, and has 3 road UART mouths, tens of roads I/O mouth.Single-chip microcomputer is controlled LCD display by data bus, and demonstrate menu Chinese character and information, and realize that by extended network interface STE100P network connects, utilize ZLG7290 to carry out keyboard scan, keypad lock scanning and client's display screen LED, if there is button to press, just carry out corresponding order.Motherboard utilizes CH375 chip expansion USB mouth, passes through the parallel data bus line swap data between them.Utilize 4066 to organize switch arrays on the motherboard, 2 road UART mouths on the single-chip microcomputer are connected respectively to tax-controlling module, print on control panel and 2 the outside serial ports.Motherboard adopts standard MODEM module that MODEM is provided connecting interface, and single-chip microcomputer adopts serial ports to be connected with the MODEM module.

The present invention adopts ARM kernel single-chip microcomputer STR912 as central processing unit, operation system and application software, it be responsible for total system scheduling and Task Distribution, handle all man-machine interacting transactions.This programme tax control Core Feature is all finished by the The Design of Tax Controled Device circuit board, and motherboard adopts the communications protocol and the The Design of Tax Controled Device of national standard definition to carry out exchanges data.Simultaneously, printing invoice is solely responsible for by printing control panel, sends data and order by motherboard by serial ports.A workflow of opening invoice is described: the salesman's operation keyboard input invoice goods and the amount of money, motherboard sends to The Design of Tax Controled Device with these data, after The Design of Tax Controled Device is finished IC-card read-write and encryption, sign is returned to motherboard, and motherboard sends to the printing control panel with data and carries out printing invoice.

Only for explanation rather than restriction the purpose of this utility model, under the condition that does not deviate from spirit and scope of the present utility model, those skilled in the art can easily adopt other known physical circuit to substitute physical circuit of the present utility model in above-mentioned explanation.Therefore, scope of the present utility model is by claim or the definition of its equivalent.

Claims

1. a tax-control cash register comprises The Design of Tax Controled Device, prints control panel, it is characterized in that: the motherboard that with the microprocessor is core is connected with The Design of Tax Controled Device, printing control panel, peripheral hardware, interface board respectively by expansion interface.

2. according to the described tax-control cash register of claim 1, it is characterized in that described The Design of Tax Controled Device is an independent printed board, utilize a slice CPU and Card Reader circuit, clock circuit, power down protection circuit, asynchronous communication circuit, storer integrated.

3. according to claim 1 or 2 described tax-control cash registers, it is characterized in that: it is that 32 ARM core chip STR912MCU finish keyboard scan and are connected with the LED interface with a slice Ethernet control STE100P, a slice ZLG7290 chip that described motherboard comprises microprocessor.

According to claim 1 or 2 described tax-control cash registers, it is characterized in that 4, described printing control panel comprises single-chip microcomputer, printing character library storage chip.

According to claim 1 or 2 described tax-control cash registers, it is characterized in that 5, described motherboard adopts the UART asynchronous communication interface to be connected with The Design of Tax Controled Device, printing control panel respectively.