CN2893801Y - Tax-control collection machine - Google Patents
Tax-control collection machine Download PDFInfo
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- CN2893801Y CN2893801Y CN 200520119712 CN200520119712U CN2893801Y CN 2893801 Y CN2893801 Y CN 2893801Y CN 200520119712 CN200520119712 CN 200520119712 CN 200520119712 U CN200520119712 U CN 200520119712U CN 2893801 Y CN2893801 Y CN 2893801Y
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- tax
- cash register
- circuit
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Abstract
The utility model relates a fiscal cash register, in particular to a tax controlled fiscal cash register, which comprises a power module, a main control module, a keyboard module, a display module, a data storage module, a real-time clock module, a user card module, a tax control module card, a printing module, a communication interface module. The Printing module has a mono-stable circuit, which is used to drive the pin of the print head in the transient stable state, and recovery in the stable state. The specially designed single-trigger stability circuit is used to control the time of the pin print head, which can guarantee the print head can be recovered in a safe time to prevent it from the burning incident in various abnormal state. Since the self-resumption fuse is used to protect user card power supply circuit, the normal work of the system is guaranteed when the various user decks get a physical attack. The utility model of the fiscal cash register has data storage module, wherein, the special anti-interfering device is used to enhance the data storage reliability, but also improve the overall work reliability.
Description
Technical field
The utility model relates to Cash collecting equipment, more specifically to a kind of tax-control cash register.
Background technology
Tax-control cash register is used for industries such as shop, hotel and is used for gathering.The service function of tax-control cash register is except being revenue department's management of taxing for businessman provides the gathering service, and promptly its service object has two, and is mutual.Can write down, show and print the trade name and the amount of money of every transaction; Can remove commodity, corrigendum, out-of-date corrigendum, the return of goods, discount, the processing of raising the price, reduce the price immediately; Can handle multiple settlement of transactions modes such as cash, check, credit card, reward voucher; Can be handled non-business expenditure and income.When the printhead of tax-control cash register goes out the stylus printer seal, must in the regular hour, regain print needle.If because of a variety of causes print needle can not in time be regained, can cause burning printhead because print needle drive coil electric current is excessive.The pin narrowing that goes out of the print needle of the tax-control cash register of prior art is generally directly controlled by microprocessor, if microprocessor crashes when print needle goes out pin, print needle is received not return, and can cause printhead to be burnt like this.When the third party carries out various physical attacks to user's deck (as inserting iron plate); can cause the supply current of subscriber card to increase suddenly; can burn subscriber card or burn the subscriber card interface circuit, the tax-control cash register of prior art is not all protected processing to this.During the tax-control cash register operate as normal, can generate a large amount of tax-control datas, and be stored in the data-carrier store of machine intimate.In the process of data storage, data-carrier store can be subjected to the influence of the various undesired signals of self powered supply, has reduced reliability of data storage.
The utility model content
The technical problems to be solved in the utility model is, at the above-mentioned defective of prior art, provides a kind of tax-control cash register of high reliability.
The technical scheme that its technical matters that solves the utility model adopts is: construct a kind of tax-control cash register, comprise power module, main control module, Keysheet module, display module, data memory module, real-time clock module, subscriber card module, tax-controlling card module, print module, communication interface module.It is characterized in that described print module is included in temporary stable state and drives the monostable circuit that printhead goes out pin, regains print needle in stable state.
In tax-control cash register described in the utility model, described print module comprises linking to each other with described monostable circuit and is used to trigger the trigger circuit that described monostable circuit enters temporary stable state, being connected in described monostable circuit mutually with described monostable circuit is that temporary stable state drives described printhead and goes out pin, at monostable circuit is the print drive circuit that stable state is regained print needle, the print data latch that is used to latch the matrix of printed dots data that links to each other with described print drive circuit; Described print data latch links to each other with described printing control circuit, and described trigger circuit link to each other with described printing control circuit, and described print drive circuit links to each other with described printhead.
In tax-control cash register described in the utility model; described subscriber card interface module comprises subscriber card power supply pin; also comprise a triode that is used to control subscriber card power supply pin switch; the emitter of described triode links to each other with described power module; the base stage of the described triode power supply that is used to control described power pin that links to each other with described control module has or not, and is connected with a fuse that is used to protect described subscriber card in the excessive automatic cutout of electric current between the collector of described triode and the subscriber card power supply pin.
In tax-control cash register described in the utility model, described fuse is for disconnecting the resettable fuse that the back can be recovered automatically after electric current is normal.
In tax-control cash register described in the utility model, described triode is the PNP triode.
In tax-control cash register described in the utility model, described power module provides power supply by wave filter for described data memory module.
In tax-control cash register described in the utility model, described wave filter is an electromagnetic interface filter.
The beneficial effects of the utility model are, because tax-control cash register of the present utility model adopts a custom-designed single-shot trigger trigger to go to control automatically going out the pin time of printhead, can guarantee that machine is under various abnormality, printhead can both be regained print needle after going out pin in the safety time of regulation, stopped to burn the accident generation of printhead.Because tax-control cash register of the present utility model adopts resettable fuse that the subscriber card feed circuit are protected, when the third party carries out various physical attacks to user's deck, can cause the supply current of subscriber card to increase suddenly, when electric current exceeds design load, fuse meeting automatic cutout, assurance does not influence the operate as normal of other module of system; After physical attacks was removed, fuse can recover, and can recover normal again to the operation of subscriber card.Because tax-control cash register of the present utility model is in the process of storage data, add special-purpose anti-interference device by power port at data-carrier store, can suppress the disturbing factor that power-supply system produces greatly, improve reliability of data storage, also improved the reliability of complete machine work simultaneously.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structured flowchart of a kind of embodiment of tax-control cash register of the present utility model;
Fig. 2 is the print module structured flowchart of tax-control cash register of the present utility model;
Fig. 3 be in the tax-control cash register of the present utility model the circuit diagram of monostable circuit;
Fig. 4 is the circuit diagram of a kind of embodiment of tax-control cash register of the present utility model.
Embodiment
As shown in Figure 1, be the structured flowchart of a kind of embodiment of tax-control cash register of the present utility model.In the tax-control cash register of present embodiment, comprise power module, main control module, Keysheet module, display module, data memory module, real-time clock module, subscriber card module, tax-controlling card module, print module, communication interface module.The main control module is with described Keysheet module, display module, data memory module, real-time clock module, subscriber card module, tax-controlling card module, print module, communication interface module links to each other and control its work.
As shown in Figure 2, structured flowchart for the print module of tax-control cash register of the present utility model, comprising links to each other with described monostable circuit is used to trigger the trigger circuit that described monostable circuit enters temporary stable state, being connected in described monostable circuit mutually with described monostable circuit is that temporary stable state drives described printhead and goes out pin, at monostable circuit is the print drive circuit that stable state is regained print needle, the print data latch that is used to latch the matrix of printed dots data that links to each other with described print drive circuit; Described print data latch links to each other with described printing control circuit, and described trigger circuit link to each other with described printing control circuit, and described print drive circuit links to each other with described printhead.
In the utility model, adopt a custom-designed single-shot trigger trigger to go to control automatically going out the pin time of printhead, can guarantee machine under various abnormality, printhead can both be regained print needle after going out pin in the safety time of regulation, has stopped to burn the accident generation of printhead.During printed invoice, microcontroller drives paper feed, the location that step motor is finished invoice earlier, then latch the dot array data of printable character, trigger monostable circuit then, make it to enter temporary stable state, under this state, the output signal of monostable circuit outputs to the matrix of printed dots data that latch on the print needle driving circuit, and the driving printhead goes out pin and prints; When monostable circuit withdraws from temporary stable state and reverts to stable state, the output signal of monostable circuit will forbid the matrix of printed dots data are outputed on the print needle driving circuit, make the printhead narrowing, finish to print.The circuit diagram of monostable circuit as shown in Figure 3, chip U8B and peripheral devices are monostable circuit (simple declaration).
As shown in Figure 4, be the circuit diagram of a kind of embodiment of tax-control cash register of the present utility model.Wherein U1 is a single-chip microcomputer, and U2 is an address latch, and U3 is the RAM storer, and U3 is an eprom memory, and U20, U21 are motor-driven, and J4, J5 are printer interface, and the PP1-PP8 pin latchs the dot array data that needs printing, and chip U8B and peripheral devices are monostable circuit.
In a kind of embodiment of tax-control cash register of the present utility model; the subscriber card interface module also is provided with a triode that is used to control subscriber card power supply pin switch; wherein the emitter of utmost point pipe links to each other with described power module; the base stage of the triode power supply that is used to control described power supply pin that links to each other with control module has or not, and is connected with a fuse that is used to protect described subscriber card in the excessive automatic cutout of electric current between the collector of triode and the subscriber card power supply pin.Fuse wherein is for disconnecting the resettable fuse that the back can be recovered automatically after electric current is normal.Triode is the PNP triode.Adopt such setting, when the third party carries out various physical attacks to user's deck, can cause the supply current of subscriber card to increase suddenly, when electric current exceeds design load, fuse meeting automatic cutout, assurance does not influence the operate as normal of other module of system; After physical attacks was removed, fuse can recover, and can recover normal again to the operation of subscriber card.
In a kind of embodiment of tax-control cash register of the present utility model, power module provides power supply by wave filter for described data memory module.Described wave filter is an electromagnetic interface filter.Add special-purpose anti-interference device by power port in the present embodiment, can suppress the disturbing factor that power-supply system produces greatly, improved reliability of data storage, also improved the reliability of complete machine work simultaneously at data-carrier store.
Claims (7)
1, a kind of tax-control cash register, comprise the power module that is used to provide power supply, Keysheet module, display module, data memory module, real-time clock module, the subscriber card module, the tax-controlling card module, print module, communication interface module, with described Keysheet module, display module, data memory module, real-time clock module, the subscriber card module, the tax-controlling card module, print module, communication interface module links to each other and controls the main control module of its work, it is characterized in that described print module is included in temporary stable state driving printhead and goes out pin, regain the monostable circuit of print needle in stable state.
2, tax-control cash register according to claim 1, it is characterized in that, described print module comprises linking to each other with described monostable circuit and is used to trigger the trigger circuit that described monostable circuit enters temporary stable state, being connected in described monostable circuit mutually with described monostable circuit is that temporary stable state drives described printhead and goes out pin, at monostable circuit is the print drive circuit that stable state is regained print needle, the print data latch that is used to latch the matrix of printed dots data that links to each other with described print drive circuit; Described print data latch links to each other with described printing control circuit, and described trigger circuit link to each other with described printing control circuit, and described print drive circuit links to each other with described printhead.
3, tax-control cash register according to claim 1; it is characterized in that; described subscriber card module comprises subscriber card power supply pin; also comprise a triode that is used to control subscriber card power supply pin switch; the emitter of described triode links to each other with described power module; the base stage of the described triode power supply that is used to control described power supply pin that links to each other with described main control module has or not, and is connected with a fuse that is used to protect described subscriber card in the excessive automatic cutout of electric current between the collector of described triode and the subscriber card power supply pin.
4, tax-control cash register according to claim 3 is characterized in that, described fuse is for disconnecting the resettable fuse that the back normally can be recovered once more automatically at electric current.
According to any one described tax-control cash register among the claim 3-4, it is characterized in that 5, described triode is the PNP triode.
6, tax-control cash register according to claim 1 is characterized in that, described power module links to each other with described data memory module by wave filter and provides power supply for it.
7, tax-control cash register according to claim 6 is characterized in that, described wave filter is an electromagnetic interface filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520119712 CN2893801Y (en) | 2005-12-08 | 2005-12-08 | Tax-control collection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520119712 CN2893801Y (en) | 2005-12-08 | 2005-12-08 | Tax-control collection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2893801Y true CN2893801Y (en) | 2007-04-25 |
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ID=38061957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520119712 Expired - Fee Related CN2893801Y (en) | 2005-12-08 | 2005-12-08 | Tax-control collection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2893801Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1979570B (en) * | 2005-12-08 | 2010-05-05 | 深圳长城开发科技股份有限公司 | Tax-controlled cashier |
-
2005
- 2005-12-08 CN CN 200520119712 patent/CN2893801Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1979570B (en) * | 2005-12-08 | 2010-05-05 | 深圳长城开发科技股份有限公司 | Tax-controlled cashier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070425 Termination date: 20131208 |