CN201522759U

CN201522759U - Network fiscal processor

Info

Publication number: CN201522759U
Application number: CN2009202774497U
Authority: CN
Inventors: 陈懿; 高志刚; 廖峰; 肖鹏坤; 陈磊; 李蓓; 王堃
Original assignee: Aisino Corp
Current assignee: Aisino Corp
Priority date: 2009-11-24
Filing date: 2009-11-24
Publication date: 2010-07-07
Anticipated expiration: 2019-11-24

Abstract

A network fiscal processor comprises a main controller module, an expansion logic module, a memory module, a user identification module interface, a network exchange module and a clock module; the main controller module is connected with the expansion logic module, the memory module and the user identification module interface through an EBI bus to carry out the data exchange; the main controller module is connected with the network exchange module through an MII interface; and the main controller module is connected with the clock module through an I2C bus. The main controller module integrates rich hardware resources, simplifies the design of a peripheral circuit, saves much hardware cost of the peripheral circuit and improves the reliability of a hardware system; and moreover, the expansion logic module not only simplifies the date processing operation of the present system, but also has stronger expansibility on the required additional circuit afterwards.

Description

Network tax controller

Technical field

The utility model relates to the network tax controller in a kind of tax source control system.

Background technology

At present, big-and-middle-sized retailing enterprise is one of difficult point of tax-control cash register popularization.Owing to all on the hardware and software of POS marketing system, carried out a large amount of initial investments basically in the big-and-middle-sized retailing enterprise, and had comparatively and to have improved and independently purchase, sales and inventory management system and background data base system, simply substitute the investment that existing POS cashier's machine not only can increase trade company with tax-control cash register, simultaneously also be difficult to background system existing and carry out compatibility, be difficult to carry out with it.

Tax office can only finish by the Sales Reports that trade company submits to for the sales revenue and the tax affairs monitoring of the type enterprise, has bigger imperfection.In order effectively the type enterprise to be supervised, tax office exigence one cover tax supervisory systems is carried out the sales data supervision to the type enterprise.

In light of this situation, creator of the present utility model relies on and to be engaged in the experience and the practice of relevant industries for many years, and through concentrating on studies and researching and developing, creates a kind of network tax controller finally.

Summary of the invention

The purpose of this utility model is, solves the technical matters of utilizing existing commercial cash register system to be difficult to carry out the tax source control.

For achieving the above object, the utility model provides a kind of network tax controller, and by main controller module, expansion logic module, memory module, user identification module interface, network exchange module, and clock module constitutes;

Be connected the line data exchange of going forward side by side by the EBI bus between described main controller module and described expansion logic module, described memory module, the described user identification module interface; Described main controller module is connected by the MII interface with described network exchange module; Described main controller module and described clock module pass through I ²The C bus connects;

Described main controller module is used to control and coordinate the work of other modules;

Described expansion logic module is used to handle the interface of external unit and communicating by letter of described main controller module;

Described memory module is used for billing information program code stored and that the user opens;

Described user identification module interface is used to connect user's SIM card, and described user's SIM card is finished the tax-control data encryption function;

Described network exchange module is connected with outside commercial cash register with user's LAN (Local Area Network) by Ethernet interface;

Described clock module provides system's operation clock.

The beneficial effects of the utility model are that the integrated plenty hardware resources of master controller has been simplified periphery circuit design, have saved a large amount of peripheral circuit hardware costs, have improved the reliability of hardware system; Simultaneously, inner integrated Ethernet switched circuit, original system need not rewiring can to finish the Ethernet of network tax controller interconnected during installation; The subscriber data traffic mode is selected wide, can select USB interface, any one commercial cash register communication of three kinds of modes of serial ports and parallel port; Adopted a slice expansion logic module, not only simplified the existing system data processing operation, and stronger extendability has been arranged at the circuit that needs later on to add.

Description of drawings

Fig. 1 is the inside composition frame chart of the utility model network tax controller;

Fig. 2 is the module map of the utility model embodiment;

Fig. 3 is the power module structural drawing of the utility model embodiment.

Description of reference numerals:

The 11-main controller module; 12-expands logic module; The 13-memory module; The 131-nonvolatile memory; The 132-volatile memory; 14-user identification module interface; 15-State Control and display module; 16-power down protection module; The 17-clock module; The 18-ethernet switching module; The 181-Ethernet interface; The 182-Ethernet interface; The 19-power module; The 191-DC power supplier; 192-LDO; 193-LDO.

Embodiment

Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described.

See also shown in Figure 1ly, be the inside composition frame chart of the utility model network tax controller.It comprises: main controller module 11, expansion logic module 12, memory module 13, user identification module (SIM, Subscriber Identity Module) interface 14, State Control and display module 15, power down protection module 16, clock module 17, ethernet switching module 18 and power module 19.

Main controller module 11 is used to control and coordinate the work of other modules.Being connected the line data of going forward side by side by EBI bus 10 between main controller module 11 and expansion logic module 12, memory module 13, the user identification module interface 14 exchanges.

Communicating by letter between parallel port, serial ports or the USB mouth that expansion logic module 12 is used to handle external unit and the main controller module 11.Typically, expansion logic module 12 is handled the data of parallel port, serial ports or the USB mouth of outside commercial cash register, and communicating by letter between printer data and the main controller module 11.Main controller module 11 is by parallel port, serial ports or the USB mouth of EBI bus 10 with outside commercial cash register, and printer communication, has simplified the operation that main controller module 11 reads and writes data.In one embodiment, expansion logic module 12 is a slice programmable logic chip, helps expanding the function of hardware circuit.

Memory module 13 is used for billing information program code stored and that the user opens, and provides system's operation required internal memory.Memory module 13 comprises nonvolatile memory 131 and volatile memory 132.Needed internal memory when nonvolatile memory 131 is used to program run is provided, the SDRAM of employing 16M byte.Volatile memory 132 is used for application storing code and tax-controlled invoice data, adopts the NOR FLASH of 8M byte.

User identification module interface 14 is used to connect user's SIM card, and described user's SIM card is finished the tax-control data encryption function.Tax-control data is encrypted and is adopted the cryptosystem that meets GB18240 1-3.User identification module interface 14 is communicated by letter with main controller module 11 by the EBI bus, when network tax controller is made out an invoice, main controller module 11 sends to user's SIM card with invoice key messages such as the time of making out an invoice in the memory module 13, invoice number, the amount of money, return the tax control identification code of 8 bytes after user's SIM card enciphered data, main controller module 11 adds the tax control identification code on the print data to then.

State Control and display module 15 provide the keypress function and the status display function of non-productive operation, and provide LED, hummer to show current working state.Main controller module 11 is connected with display module 15 with State Control by the GPIO interface.

Power down protection module 16 is used for providing enough electric energy to finish data manipulation after the network tax controller outage, guarantees that system data is correct.Power down protection module 16 comprises down Monitor Unit module 161 and back-up source module 162.Down Monitor Unit module 161 is finished the monitoring to the network tax controller outage, provides look-at-me to main controller module 11 when network tax controller cuts off the power supply.Main controller module 11 enters the power-fail interrupt handling procedure, finishes data manipulation and protection.Back-up source module 162 is used for providing electric energy after the network tax controller outage, keeps system's operate as normal at short notice.

Clock module 17 provides system's operation clock for network tax controller.

Ethernet switching module 18 is used for being connected of network tax controller and user's LAN (Local Area Network) and POS equipment.Main controller module 11 is connected with ethernet switching module 18 by the MII interface.Ethernet switching module 18 provides Ethernet

interface

181 and 182, and wherein Ethernet interface 181 is used to connect user's LAN (Local Area Network), and Ethernet interface 182 is used to connect outside commercial cash register.Therefore, the installation of network tax controller can utilize existing user's LAN (Local Area Network), does not influence existing user's wiring.

Power module 19 provides external power source for system.

With specific embodiment structure of the present utility model and characteristics are described below.Fig. 2 is the module map of the utility model embodiment.

In the present embodiment, main controller module 11 adopts the W90P710 microprocessor chip.Described W90P710 microprocessor chip exchanges by being connected the line data of going forward side by side between EBI bus 10 and expansion logic module 12, memory module 13, the user identification module interface 14.

State Control and display module 15 can be keyboard, LED light and/or the hummer that is arranged on the network tax controller outside.

Down Monitor Unit module 161 and clock module 17 usefulness M41ST87 chips are realized.W90P710 passes through I ²The C bus is connected with data pins Scl/Sda with the clock of M41ST87, and M41ST87 provides the operation clock for W90P710, and swap data.The power-fail input pin PFI of W90P710 and M41ST87 chip, and power-fail output pin PFO connects.When system's power down, the level of the power-fail input pin PFI of M41ST87 chip is lower than setting threshold, and power-fail output pin PFO output low level signal is as look-at-me.After W90P710 receives this look-at-me, enter the power-fail interrupt handling procedure, finish data manipulation and protection.

In the present embodiment, back-up source module 162 utilizes the electric capacity of two series connection to realize.After system's power down, the electric capacity of series connection can be kept 5 seconds operate as normal of system, finishes the critical data operation.

Fig. 3 is the structural drawing of the utility model power module 19.Power module 19 is made of DC power supplier 191, low-dropout regulator LDO192 and low-dropout regulator LDO193.

DC power supplier 191 is the adapter of 5V@3A, provide system required+5V voltage.Low-dropout regulator LDO192 selects SPX3940M3-3.3 for use, output voltage be+3.3V that output current can reach 800mA.Low-dropout regulator LDO193 selects SPX1117M3-ADJ for use, output voltage is fixed on+1.8V by adjusting peripheral resistance (not shown), and output current can reach 200mA.

The integrated plenty hardware resources of the master controller of the utility model network tax controller has been simplified periphery circuit design, has saved a large amount of peripheral circuit hardware costs, has improved the reliability of hardware system.Simultaneously, inner integrated Ethernet switched circuit, original system need not rewiring can to finish the Ethernet of network tax controller interconnected during installation.The subscriber data traffic mode is selected wide, can select USB interface, any one commercial cash register communication of three kinds of modes of serial ports and parallel port.Adopted a slice expansion logic chip, not only simplified the existing system data processing operation, and stronger extendability has been arranged at the circuit that needs later on to add.

More than be illustrative to description of the present utility model; and it is nonrestrictive; those skilled in the art is understood, and can carry out many modifications, variation or equivalence to it within spirit that claim limits and scope, but they will fall in the protection domain of the present utility model all.

Claims

1. a network tax controller is characterized in that, by main controller module, expansion logic module, memory module, user identification module interface, network exchange module, and clock module constitutes;

Described clock module provides system's operation clock.

2. network tax controller as claimed in claim 1; it is characterized in that, also comprise a power down protection module, comprise down Monitor Unit module and back-up source module; described power down protection module is used for providing enough electric energy to finish data manipulation after the network tax controller outage.

3. network tax controller as claimed in claim 2 is characterized in that, described down Monitor Unit module is finished the monitoring to the network tax controller outage, provides look-at-me to main controller module when network tax controller cuts off the power supply; Described back-up source module is used for providing electric energy after the network tax controller outage.

4. network tax controller as claimed in claim 1 is characterized in that, also comprises a State Control and display module, and the keypress function and the status display function of non-productive operation is provided.

5. network tax controller as claimed in claim 2 is characterized in that, described back-up source module is the electric capacity that is connected in series.

6. network tax controller as claimed in claim 1 is characterized in that, it is to adopt the cryptosystem that meets GB182401-3 that described tax-control data is encrypted.

7. network tax controller as claimed in claim 2 is characterized in that, described down Monitor Unit module and clock module are integrated in the same chip.