CN1352415A

CN1352415A - Anti-fake gold tax card converter

Info

Publication number: CN1352415A
Application number: CN 00129302
Authority: CN
Inventors: 王耀庭; 殷述军; 李龙伟
Original assignee: HAISENSE COMPUTER CO Ltd QINGDAO
Current assignee: HAISENSE COMPUTER CO Ltd QINGDAO
Priority date: 2000-11-03
Filing date: 2000-11-03
Publication date: 2002-06-05
Anticipated expiration: 2020-11-03
Also published as: CN1152289C

Abstract

An anti-fake gold tax card converter inclues ISA slots for gold tax card to be inserted, an ISA driving card inserted into a computer ISA slot and a wire connecting ISA adapting card. The ISA adapting card is connected to several ISA slots for gold tax card via multiplexer circuit to several IC card sockets and public IC card logging-in devices via multiplexer circuit. The present invention makes it possible for several enterprises to share one computer system while using gold tax card.

Description

Anti-fake gold tax card converter

The invention belongs to the computer integrated manufacturing system field, relate to a kind of tax-card controller, is a kind of anti-fake gold tax card converter specifically.

Tax-card is the control card that is used for opening VAT invoice that revenue department provides to enterprise, there is different tax-cards in different enterprises, during use tax-card is inserted the ISA slot of computing machine, read in IC-card information again, import invoice amount on keyboard, computing machine just prints VAT invoice, and tax information has just been stayed on the tax-card, the amount of tax to be paid of tax card appointment can be reused after need declaring dutiable goods to revenue department once to not printed VAT invoice.Therefore tax-card has stronger antiforge function with respect to present widely used papery VAT invoice, also helps tax revenue, is a kind of control card that country widelys popularize.

Using the prerequisite condition of tax-card at present is that a cover computer system is arranged, that is: a computing machine, a printer, a display, a keyboard, about 15000 yuans of required expense, need the zooming accounting in addition, this is for many enterprises, especially to those computer systems can not his usefulness of double as enterprise be no small investment.If a cover computer system can be printed the VAT invoice of a plurality of tax-cards, just can make the shared cover computer system of a plurality of enterprises, significantly reduce the investment of enterprise, help popularizing and promoting of tax-card.

But can there be resource contention in the mainboard of a present computing machine, the tax-card cisco unity malfunction when inserting two or two above tax-cards simultaneously.Therefore one adds up to a plurality of tax-cards of the confidential use of calculation can only change card one by one, when using another tax-card, opens computer host box that is:, pulls up a last tax-card from the ISA slot, the tax-card that insertion will be used.This has caused great inconvenience to the user, and often open computer host box, removable card can very fast damage computing machine, this is impracticable in actual use.

The objective of the invention is to deficiency at the prior art existence, a kind of anti-fake gold tax card converter is provided, adopt time-sharing multiplexing technology, an ISA slot on the computer motherboard is extended to a plurality of ISA slots, a plurality of tax-cards are inserted in these expansion ISA slots, and computing machine can timesharing uses the tax-card in any one slot wherein, controls which tax-card work by divider, concerning the user,, can in a plurality of cards, select arbitrarily as a selector switch is arranged.This just can make the shared cover computer system of a plurality of enterprises use tax-card, and needn't open computer host box, removable card, realizes a tractor serves several purposes.

The objective of the invention is to be achieved through the following technical solutions: a kind of anti-fake gold tax card converter, comprise: the ISA slot of plug-in mounting tax-card, it is characterized in that: have an ISA driver card that can be inserted in the Computer I SA slot to be connected with lead with an ISA adapter, be connected with the multidiameter option switch circuit between the ISA slot of ISA adapter and a plurality of plug-in mounting tax-cards, be connected with the multidiameter option switch circuit between a plurality of IC-card sockets corresponding and the public IC-card input device with the ISA slot of a plurality of plug-in mounting tax-cards.

The control signal port of described multidiameter option switch circuit is connected to the signal output port of control circuit, and the signal input port of control circuit is connected to the output port of the operation keyboard that includes tax card selection key.

Each control signal port of described multidiameter option switch circuit also can be directly and the operation keyboard control signal port that the card selection key provided of paying taxes connect one to one.

One one-chip computer is arranged in the described control circuit.

Button on the described operation keyboard is the interlocking button.

The ISA slot of described ISA adapter, multidiameter option switch circuit, a plurality of plug-in mounting tax-cards, a plurality of IC-card socket, control circuit are installed in a tax card and share on the mainboard, and the tax card is shared mainboard and is installed in cabinet inside, and operation keyboard is installed on the cabinet.

When bringing into use, the ISA driver card is inserted the ISA slot of computing machine, with lead ISA driver card and ISA adapter are coupled together, insert tax-card in the tax card is shared the ISA slot of each the plug-in mounting tax-card on the mainboard, the numbering of selection key is consistent on its numbering and the operation keyboard.Each later on the use as long as turn on the power switch on operation keyboard, the numbering that clicks selected tax card is just passable.The control circuit that the tax card is shared on the mainboard will send corresponding signal controlling multidiameter option switch circuit according to the numbering of button automatically, need with tax-card switch on the computing machine, simultaneously public IC-card input device card is switched on the corresponding tax-card.

The present invention compared with prior art has many advantages and good effect: ISA slot and a plurality of IC-card socket of drawing a plurality of plug-in mounting tax-cards because of a cover computer system, realized the shared cover computer system use tax-card of a plurality of enterprises, and needn't open computer host box, removable card, the user can pass through the switching and the work of Keyboard Control tax card and IC-card input device easily, as same Individual Income Tax card takies a computing machine separately, function is unaffected, and the present invention is simple in structure, cost is lower, be easy to make, easy to install, fundamentally alleviate the burden of enterprise, helped popularizing and promoting of tax-card.

Fig. 1 is the structural representation of the present invention's six user's anti-fake gold tax card converters;

Fig. 2 is the partial circuit figure of two users' anti-fake gold tax card converter of the present invention;

Fig. 3 is another part circuit diagram of two users' anti-fake gold tax card converter of the present invention.

Below in conjunction with accompanying drawing the present invention is described in further detail:

Referring to Fig. 1, embodiment has described the situation of six shared cover computer systems of tax-card, and whole anti-fake gold tax card converter is made of four parts:

ISA driver card (1): be the integrated circuit board that is placed on anti-fake gold tax card converter, one scsi interface is arranged on it, can be connected by lead (15) with the scsi interface on the ISA adapter (2), during use, the ISA driver card is inserted the ISA slot of computing machine, its major function is: finish the driving and the coupling of eight isa bus of standard, make data line, address wire, control line can pass through scsi interface, reach the ISA adapter of sharing on the mainboard.

ISA adapter (2): be installed in the tax card and share on the mainboard (14), finish the connection and the coupling of isa bus signal, the interface chip on the mainboard (14) is protected.

The tax card is shared mainboard (14): six standard I SA slots (13) and corresponding six IC sockets (6) are arranged, can allow six tax-cards to place simultaneously, controller (12) comprises Control Software, finish detection to the button (10) on the keyboard (11), send control signal and give two multidiameter option switch circuit (3,4), be used for selecting a job in six tax-cards one and six the IC sockets.

The tax card is selected keyboard (11): six press keys (10) and corresponding six pilot lamp (9) are arranged on it, and the corresponding six Individual Income Tax cards of difference and six IC-card sockets, tax card and IC-card input device that the user need can select on keyboard enter duty.Power switch (7) and power light (8) are used for opening the complete machine power supply of anti-fake gold tax card converter.

Fig. 2, Fig. 3 are the circuit diagrams of two user's antifakery tax-card dividers, when the user is increased to two when above, as long as it is just passable to increase related circuit according to Fig. 2, Fig. 3.

Single-chip microcomputer 8051 is as master controller among Fig. 2, and each control signal of electronic switching circuit 4 is used for switching IC-card to the tax card in 8 line output control charts 1 of its P1 mouth; Each control signal of electronic switching circuit 3 is used for switching the ISA slot of tax card to computing machine in 8 line output control charts 1 of P2 mouth; The P0 mouth is as the input port, accepts the pay taxes signal of card button of operation keyboard.IC is public IC-card socket, nine on useful signal line, IC1, IC2 are respectively the IC-card sockets on No. 1 tax card, No. 2 tax cards, be to realize switching between public IC-card socket and the IC1 by the contact of relay Q11, Q12, Q13, Q14, Q15, five relays are driven by current driver J11, J12, J13, driver J11, J12, J13 are controlled by the P10 port of single-chip microcomputer 8051, and LED1 is the pilot lamp of a button on the keyboard, are used to refer to its duty.Equally, be to realize switching between public IC-card socket and the IC2 by the contact of relay Q21, Q22, Q23, Q24, Q25, these five relays are driven by current driver J21, J22, J23, driver J21, J22, J23 are controlled by the P11 port of single-chip microcomputer 8051, LED2 is the pilot lamp of No. two buttons on the keyboard, is used to refer to its duty.

Among Fig. 3, U1, U2, U3, U4, U5, U6, U7 have formed ISA driver card circuit, its input signal is the isa bus signal of computing machine, U1-1, U2-1, U3-1, U4-1, U5-1, U6-1, U7-1 have formed the electronic switch between the ISA socket of the ISA socket of No. 1 tax card and computing machine, its control signal is A1, B1, C1, when A1, B1, C1 be respectively+12V ,+5V ,+the ISA socket of No. 1 tax card just has been connected on the ISA socket of computing machine during 5V.Equally, U1-2, U2-2, U3-2, U4-2, U5-2, U6-2, U7-2 have formed the electronic switch between the ISA socket of the ISA socket of No. 2 tax cards and computing machine, its control signal is A2, B2, C2, when A2, B2, C2 be respectively+12V ,+5V ,+the ISA socket of No. 2 tax cards just has been connected on the ISA socket of computing machine during 5V.

Referring to Fig. 2, control signal A1, B1, C1 and A2, B2, C2 and+12V ,+5V ,+realize switching by relay Q16, Q26 between the 5V, relay Q16, Q26 are driven by current driver, and current driver is controlled by P20, the P21 port of single-chip microcomputer 8051.

The course of work of circuit is such: at first press a certain tax card selection key on operation keyboard, as a tax card selection key (among Fig. 2) S1, because button is interlocking, this moment, other tax card selection keys were all invalid, the P00 port of single-chip microcomputer 8051 just produces a Vcc level signal, single-chip microcomputer 8051 just makes current driver J11 in P10 port outputs level signals after detecting this signal, J12, J13 work, relay Q11, Q12, Q13, Q14, the Q15 adhesive, IC-card socket IC1 on No. 1 tax card just has been switched on the public IC-card socket, LED 1 is bright, indicates No. 1 tax card to work.Single-chip microcomputer 8051 is exported a signal at the P20 port simultaneously, make relay Q16 adhesive by current driver, A1, B1, C1 and+12V ,+5V ,+5V connects, U3-1 among Fig. 3, U4-1, U5-1, U6-1, U7-1 are open-minded, and the ISA socket of No. 1 tax card just has been connected on the ISA socket of computing machine.When No. 1 the tax card is being worked, the automatic dead electricity of ISA socket of other tax cards.

Each circuit chip among Fig. 2, Fig. 3 also can substitute with other model chips of said function.The P0 of single-chip microcomputer 8051, P1, P2 mouth are 8 mouths among the figure, can be extended to 8 users at most, expand more users if desired, can select other single-chip microcomputers for use, or P0, P1, the P2 mouth of single-chip microcomputer 8051 are expanded.

Claims

1, a kind of anti-fake gold tax card converter, comprise: the ISA slot of plug-in mounting tax-card, it is characterized in that: have an ISA driver card (1) that can be inserted in the Computer I SA slot to be connected with lead (15) with an ISA adapter (2), be connected with multidiameter option switch circuit (3) between the ISA slot (13) of ISA adapter (2) and a plurality of plug-in mounting tax-cards, be connected with multidiameter option switch circuit (4) between a plurality of IC-card sockets (6) corresponding and the IC-card input device (5) with the ISA slot (13) of a plurality of plug-in mounting tax-cards.

2, according to the described anti-fake gold tax card converter of claim 1, it is characterized in that: the control signal port of multidiameter option switch circuit (3,4) is connected to the signal output port of controller (12), and the signal input port of controller (12) is connected to the signal output port of the operation keyboard (11) that includes tax card selection key (10).

3, according to the described anti-fake gold tax card converter of claim 1, it is characterized in that: each control signal port of multidiameter option switch circuit (3,4) directly and operation keyboard (11) the control signal port that card selection key (10) provided of paying taxes connect one to one.

4, according to claim 1 or 2 described anti-fake gold tax card converters, it is characterized in that: described controller has an one-chip computer in (12).

5, according to the described anti-fake gold tax card converter of claim 4, it is characterized in that: the button (10) on the operation keyboard (11) is the interlocking button.

6, according to the described anti-fake gold tax card converter of claim 5, it is characterized in that: ISA adapter (2), multidiameter option switch circuit (3,4), the ISA slot (13) of a plurality of plug-in mounting tax-cards, a plurality of IC-card socket (6), controller (12) are installed in a tax card and share on the mainboard (14), the tax card is shared mainboard (14) and is installed in cabinet inside, and operation keyboard (11) is installed on the cabinet.