CN206757807U - A kind of tax-control cash register - Google Patents

A kind of tax-control cash register Download PDF

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Publication number
CN206757807U
CN206757807U CN201621439071.2U CN201621439071U CN206757807U CN 206757807 U CN206757807 U CN 206757807U CN 201621439071 U CN201621439071 U CN 201621439071U CN 206757807 U CN206757807 U CN 206757807U
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tax
cash register
power supply
control
power
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CN201621439071.2U
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侯天龙
聂慧萍
苗地
余彦
陈懿
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Aisino Corp
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Aisino Corp
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Abstract

The utility model discloses a kind of tax-control cash register, including：Main control processor, Non-contact Media Reader, stand-by power supply and power-off protecting circuit；Main control processor is connected with Non-contact Media Reader, stand-by power supply and power-off protecting circuit respectively；Wherein, the Non-contact Media Reader, for reading the authority information of corresponding contactless authority card；The main control processor, for enabling the function of the corresponding authority information according to the authority information；The power-off protecting circuit, for when power is off, the stand-by power supply will to be switched power supply to.The tax-control cash register that the utility model embodiment provides, compared to contact IC use in the prior art, not only information capacity is big, and security is good by using contactless, and use more facilitates.It in addition, by setting stand-by power supply and power-off protecting circuit, can will switch power supply on stand-by power supply, avoided because power-off causes loss of data when power is off.

Description

A kind of tax-control cash register
Technical field
Cashing machine technical field is the utility model is related to, espespecially a kind of tax-control cash register.
Background technology
The cashing machine commercially used can typically realize the function of gathering, display and printed tickets, but common Cashing machine can not realize tax control, and carrying out tax revenue to country makes troubles, and increases tax policies, and easily cause steathily Tax, phenomenon of evading taxation, in order to solve the problems, such as tax control, occurs the cashing machine with tax control function on the market.
At present, with the development of Tax Informatization, tax-control cash register has become the important selection of medium and small taxpayer.It is existing Have and contact IC is used in the tax-control cash register in technology, for Contact Type Ic Card because information capacity is small, security is poor, and needs Contact could read information, can not meet the needs of some users.In addition, tax-control cash register of the prior art pass through it is external Power supply adaptor is powered, when the situation for occurring powering off suddenly, it is easy to cause loss of data.
Utility model content
The utility model embodiment provides a kind of tax-control cash register, to solve tax control cash receiving present in prior art Machine can not meet user's request, and supply by external power supply adapter using the contact IC that information capacity is small, security is poor Electricity, there is the problem of easily causing loss of data during power-off suddenly.
The utility model embodiment provides a kind of tax-control cash register, including：Main control processor, Non-contact Media Reader, Stand-by power supply and power-off protecting circuit；The main control processor respectively with Non-contact Media Reader, stand-by power supply and power-off Protection circuit connects；Wherein,
The Non-contact Media Reader, for reading the authority information of corresponding contactless authority card；
The main control processor, for enabling the function of the corresponding authority information according to the authority information；
The power-off protecting circuit, for when power is off, the stand-by power supply will to be switched power supply to.
It is described non-to connect in the tax-control cash register that the utility model embodiment provides in a kind of possible implementation Touch card reader is radio frequency identification card reader.
It is described non-to connect in the tax-control cash register that the utility model embodiment provides in a kind of possible implementation Touch card reader includes：The card reader chip being connected with the main control processor, and the day being connected with the card reader chip Line.
In a kind of possible implementation, in the tax-control cash register that the utility model embodiment provides, the antenna For radio frequency induction coil.
In a kind of possible implementation, in the tax-control cash register that the utility model embodiment provides, the Card Reader The model MFRC522 of device chip.
It is described standby in the tax-control cash register that the utility model embodiment provides in a kind of possible implementation Power supply is lithium battery.
In a kind of possible implementation, in the tax-control cash register that the utility model embodiment provides, in addition to：With The thermal printer of the main control processor connection.
In a kind of possible implementation, in the tax-control cash register that the utility model embodiment provides, the temperature-sensitive Printer includes：The control unit being connected with the main control processor, the motor drive ic being connected with described control unit, with And the thermal printing head being connected with the motor drive ic.
In a kind of possible implementation, in the tax-control cash register that the utility model embodiment provides, the temperature-sensitive Printer also includes the memory for being used to store character library being connected with described control unit.
In a kind of possible implementation, in the tax-control cash register that the utility model embodiment provides, the control The model LPC1768 of unit.
The utility model has the beneficial effect that：
The tax-control cash register that the utility model embodiment provides, including：Main control processor, it is Non-contact Media Reader, standby Power supply and power-off protecting circuit；Main control processor respectively with Non-contact Media Reader, stand-by power supply and power-off protecting circuit Connection；Wherein, Non-contact Media Reader, for reading the authority information of corresponding contactless authority card；Main control processor, use In the function that corresponding authority information is enabled according to authority information；Power-off protecting circuit, it is standby by switching power supply to for when power is off Use power supply.The tax-control cash register that the utility model embodiment provides, by using contactless compared to using in the prior art Contact IC, not only information capacity is big, and security is good, and use is more convenient.In addition, by setting stand-by power supply and power-off It protection circuit, can will switch power supply on stand-by power supply, avoided because power-off causes loss of data when power is off.
Brief description of the drawings
Fig. 1 is one of structural representation of tax-control cash register that the utility model embodiment provides；
Fig. 2 is the two of the structural representation for the tax-control cash register that the utility model embodiment provides；
Fig. 3 is the hardware architecture diagram of model MF RC522 card reader chip；
The hardware architecture diagram of Fig. 4 models LB1836 motor drive ic.
Embodiment
, can not for tax-control cash register present in prior art using the contact IC that information capacity is small, security is poor Meet user's request, and powered by external power supply adapter the problem of easily causing loss of data during power-off suddenly occur, The utility model embodiment provides a kind of tax-control cash register.
Below in conjunction with the accompanying drawings, the embodiment of the tax-control cash register provided the utility model embodiment carries out detailed Ground explanation.The size and shape of each several part does not reflect actual proportions in accompanying drawing, and purpose is schematically illustrate the utility model content.
The utility model embodiment provides a kind of tax-control cash register, as shown in figure 1, including：Main control processor 11, it is non-to connect Touch card reader 12, stand-by power supply 13 and power-off protecting circuit 14；Main control processor 11 respectively with Non-contact Media Reader 12, Stand-by power supply 13 and power-off protecting circuit 14 connect；Wherein,
Non-contact Media Reader 12, for reading the authority information of corresponding contactless authority card；
Main control processor 11, for enabling the function of corresponding authority information according to authority information；
Power-off protecting circuit 14, for when power is off, stand-by power supply 13 will to be switched power supply to.
The tax-control cash register that the utility model embodiment provides, by using contactless compared to using in the prior art Contact IC, not only information capacity is big, and security is good, and use is more convenient.In addition, by setting stand-by power supply 13 and breaking It electric protection circuit 14, can will switch power supply on stand-by power supply 13, avoided because power-off causes loss of data when power is off.
In actual applications, in the above-mentioned tax-control cash register that the utility model embodiment provides, stand-by power supply 13 can be The lithium battery of lithium battery, preferably Large Copacity, it is of course also possible to use other stand-by power supplies 13, such as super capacitor, herein simultaneously The species of stand-by power supply 13 is not defined., can be in unexpected power-off by setting power-off protecting circuit 14, can be by electricity Source switches to stand-by power supply 13, and the power-off protecting circuit 14 can be realized by hardware circuit, can also utilize battery management core Piece (such as BQ24170) is realized.Above-mentioned main control processor 11 can use model W90N740-2 micro-control unit (Microcontroller Unit；MCU) realize.
In the specific implementation, in the above-mentioned tax-control cash register that the utility model embodiment provides, Non-contact Media Reader 12 Preferably radio frequency identification (Radio Frequency Identification, RFID) card reader, RFID card reader can pass through Authority information in RFID authority cards corresponding to radio signal identification, and need not be built between RFID authorities card and RFID card reader Vertical Mechanical Contact or optical contact.
Authority information in RFID authority cards can include personal or enterprise identity information (such as common employee, manager Or the identity such as maintenance man), type information of tax-control cash register etc..RFID card reader reads the authority information in RFID authority cards Afterwards, main control processor 11 can distribute the execution authority of correlation function according to the authority information, detect that identity information is for example, working as During manager, invoice for sales can be opened, check the higher function of the authority such as important form or purchase control, when detect identity believe Cease for common employee when, can only open and commonly make out an invoice or check the relatively low function of the authorities such as conventional statement.
Specifically, as shown in Fig. 2 Non-contact Media Reader 12 can include：The card reader being connected with main control processor 11 Chip 121, and the antenna 122 being connected with card reader chip 121；Wherein, the antenna 122 can be radio frequency induction coil.
In the specific implementation, in the above-mentioned tax-control cash register that the utility model embodiment provides, the type of card reader chip 121 Number it is MFRC522.
Model MFRC522 card reader chip 121 is by grace intelligence Pu semiconductor (NASDAQ:NXPI) company produces, It is to be applied to a member in 13.56MHz contactless communications in high integration read-write card family chip, is a low-voltage, low The contactless read-write card chip of cost, small volume.
Model MF RC522 card reader chip 121 make use of advanced modulation and demodulation concept, it is fully-integrated All types of passive contactless communication modes and agreements under 13.56MHz, ISO14443A multilayer application is supported, inside it Transmitter part can drive reading and writing device antenna 122 with The communication of card and answering machine, without it Its circuit.Receiver part provides a firm and effective demodulation and decoding circuitry, for handling ISO14443A compatibilities Transponder signal, numerical portion processing ISO14443A frames and error detection (Qi Ou ＆CRC).In addition, it is also supported quickly CRYPTO1 AESs, for verifying MIFARE series of products.MFRC522 is supportedMore high speed it is contactless Communication, bidirectional data transfers speed are up to 424kbit/s.
Fig. 3 is the structural representation of model MF RC522 card reader chip 121, and the communication between main frame uses line Less serial communication, and SPI, I2C or serial universal asynchronous receiving-transmitting transmitter can be chosen according to different user's requests One of (Universal Asynchronous Receiver/Transmitter, UART) pattern, advantageously reduces line, contracting Small pcb board volume, reduces cost.
Further, in the above-mentioned tax-control cash register that the utility model embodiment provides, referring again to Fig. 2, can also wrap Include：The thermal printer 15 being connected with main control processor 11.
Using thermal printer 15, have that print speed is fast, noise is small, and the advantage such as display quality height.
Specifically, thermal printer 15 can include：The control unit 151 being connected with main control processor 11, it is single with control The motor drive ic 152 of the connection of member 151, and the thermal printing head 153 being connected with motor drive ic 152；Wherein, the control The model LPC1768 of unit 151 processed.
When needing printing, control unit 151 receives the print command of main control processor 11, controlled motor driving chip 152 drive the paper feeds of thermal printing head 153, there is semiconductor heating element heater (generally thermistor) on thermal printing head 153, should be partly Conductor heating element heater contacts with thermal printing paper, so as to be heated to thermal printing paper, to accelerate the chemical reaction of thermal printing paper So as to display content.
In the specific implementation, above-mentioned control unit 151 can use the Cortex-M3 chip LPC1786 of NXP companies, on The LB1836 (hardware pins are as shown in Figure 4) of Sanyo Electric (SANYO) company, temperature-sensitive can be used by stating motor drive ic 152 Printhead 153 can use model LTPA245S thermal printing head.
As shown in figure 4, by control to motor drive ic 152 four input ports (2 in figure, 6,13,9 four pipe Pin) input control signal, to obtain the output signal of four output ports (3 in figure, 6,12,10 4 pins), can reach The stepper motor movement in thermal printing head 153 is controlled, so as to reach the purpose of the paper feed of thermal printer 15.In practical application In, it is to input letter by four I/O ports of control unit 151 come four input ports for motor drive ic 152LB1836 Number, be in table 1 stepper motor in thermal printing head 153LPTA245S truth table, can according to table 1 input control signal, from And the paper feed of thermal printing head 153 is controlled, wherein Step1-2 is thermal printing head 153 paper feed, one lattice lengths, and Step3-4 is Thermal printing head 153 paper feed, one lattice lengths.
The truth table of stepper motor in the thermal printing head 153LPTA245S of table 1
More specifically, thermal printer 15 also includes the memory for being used to store character library being connected with control unit 151 154.Preferably use model SST25VF080 FLASH chip.
In practical application, the card reader chip 121 of above-mentioned RFID card reader and the control list of above-mentioned thermal printer 15 Member 151 and motor drive ic 152 can be produced in same PCB, to save space, reduce tax-control cash register Volume.
The tax-control cash register that the utility model embodiment provides, by using contactless compared to using in the prior art Contact IC, not only information capacity is big, and security is good, and use is more convenient.By setting stand-by power supply 13 and power-off to protect It protection circuit 14, can will switch power supply on stand-by power supply 13, avoided because power-off causes loss of data when power is off.In addition, Using thermal printer 15, fast with print speed, noise is small, and the advantage such as display quality height.
Obviously, those skilled in the art can carry out various changes and modification without departing from this practicality to the utility model New spirit and scope.So, if these modifications and variations of the present utility model belong to the utility model claims and Within the scope of its equivalent technologies, then the utility model is also intended to comprising including these changes and modification.

Claims (10)

  1. A kind of 1. tax-control cash register, it is characterised in that including：Main control processor, Non-contact Media Reader, stand-by power supply and disconnected Electric protection circuit；The main control processor is connected with Non-contact Media Reader, stand-by power supply and power-off protecting circuit respectively；Its In,
    The Non-contact Media Reader, for reading the authority information of corresponding contactless authority card；
    The main control processor, for enabling the function of the corresponding authority information according to the authority information；
    The power-off protecting circuit, for when power is off, the stand-by power supply will to be switched power supply to.
  2. 2. tax-control cash register as claimed in claim 1, it is characterised in that the Non-contact Media Reader is radio frequency identification Card Reader Device.
  3. 3. tax-control cash register as claimed in claim 2, it is characterised in that the Non-contact Media Reader includes：With the master Control the card reader chip of processor connection, and the antenna being connected with the card reader chip.
  4. 4. tax-control cash register as claimed in claim 3, it is characterised in that the antenna is radio frequency induction coil.
  5. 5. tax-control cash register as claimed in claim 4, it is characterised in that the model MFRC522 of the card reader chip.
  6. 6. tax-control cash register as claimed in claim 1, it is characterised in that the stand-by power supply is lithium battery.
  7. 7. tax-control cash register as claimed in claim 1, it is characterised in that also include：The heat being connected with the main control processor Quick printer.
  8. 8. tax-control cash register as claimed in claim 7, it is characterised in that the thermal printer includes：At the master control The control unit of device connection, the motor drive ic being connected with described control unit are managed, and is connected with the motor drive ic The thermal printing head connect.
  9. 9. tax-control cash register as claimed in claim 8, it is characterised in that the thermal printer also includes single with the control The memory for being used to store character library of member connection.
  10. 10. tax-control cash register as claimed in claim 8 or 9, it is characterised in that the model of described control unit LPC1768。
CN201621439071.2U 2016-12-26 2016-12-26 A kind of tax-control cash register Active CN206757807U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621439071.2U CN206757807U (en) 2016-12-26 2016-12-26 A kind of tax-control cash register

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621439071.2U CN206757807U (en) 2016-12-26 2016-12-26 A kind of tax-control cash register

Publications (1)

Publication Number Publication Date
CN206757807U true CN206757807U (en) 2017-12-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621439071.2U Active CN206757807U (en) 2016-12-26 2016-12-26 A kind of tax-control cash register

Country Status (1)

Country Link
CN (1) CN206757807U (en)

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