CN114283538A - POS printer anti-dismantling system and method thereof - Google Patents
POS printer anti-dismantling system and method thereof Download PDFInfo
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- CN114283538A CN114283538A CN202011514166.7A CN202011514166A CN114283538A CN 114283538 A CN114283538 A CN 114283538A CN 202011514166 A CN202011514166 A CN 202011514166A CN 114283538 A CN114283538 A CN 114283538A
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000002265 prevention Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The invention relates to a POS printer anti-dismantling system and a method thereof.A dismantling prevention circuit is arranged between a mainboard of a POS printer and a printing MCU board; after the MCU board detects that the cable is pulled out, the anti-dismantling circuit records the pulling-out information, the pulling-out information is transmitted to the mainboard after the cable is connected again, the mainboard enters a screen-up mode after receiving the information, and the POS printer is locked. According to the anti-dismantling system and method for the POS printer, the anti-dismantling detection circuit is added on the basis of conventional design, an encryption chip does not need to be added independently, the circuit cost of hardware is greatly reduced, the anti-dismantling and anti-refitting design is achieved, potential safety hazards caused by information leakage are avoided, and the business operation safety is protected.
Description
Technical Field
The invention relates to a cash register system, in particular to an anti-disassembly system with a built-in printer and a method thereof.
Background
At present, in the field of commercial cash register, the desktop cash register with the built-in printer is basically prevented from being disassembled (dispensing and pasting fragile labels) by a structure, so that violent disassembling cannot be avoided, or a bad means is used for privately disassembling and assembling and refitting the printer (resulting in information leakage and potential safety hazard).
With the increasing requirements of the state on information security and the rising awareness of merchants on guaranteeing the security of operating information, the printers need to be prevented from being improperly disassembled through special design on the hardware of the POS printers.
Disclosure of Invention
In view of the above problems, the present invention provides a system and a method for preventing a POS printer from being detached, in which a detachment prevention circuit is disposed inside the POS printer, and when it is detected that the printer is detached, a cash register host starts a screen-up mode next time, locks a machine, and reminds a merchant that the printer is attacked. After disassembly, the machine can not be used after recombination, and the disassembly prevention in function is realized.
The invention solves the problems of information leakage and potential safety hazard caused by stealing and tampering the data stored in the printing MCU board after the printer in the desktop cash register is disassembled and modified. The cash register host can be automatically locked after being dismounted and started next time, thereby reminding a merchant that a printer is attacked, improving the security awareness of the merchant and protecting information from being leaked.
A POS printer anti-disassembly system, include the anti-disassembly circuit between MCU board and printing the host board of the said POS printer; after the MCU board detects that the cable is pulled out of the information, the anti-dismantling circuit records the pulling out information and transmits the pulling out information to the mainboard after the cable is connected again.
A POS printer anti-disassembly method comprises the following steps:
an anti-disassembly circuit is arranged between the mainboard of the POS printer and the MCU board;
when the cable connected with the mainboard and the MCU board is pulled out, the MCU board detects and stores the information that the cable is pulled out;
when the cable is connected again, the information that the cable is pulled out is transmitted back to the mainboard;
the mainboard enters a screen-up mode after receiving the information, and the POS printer is locked, and the invention has the term explanation:
the invention has the following technical effects:
according to the anti-dismantling system and method for the POS printer, the dismantled detection circuit is added on the basis of conventional design, an encryption chip does not need to be added independently, the circuit cost of hardware is greatly reduced, the anti-dismantling and anti-refitting design is achieved, potential safety hazards caused by information leakage are avoided, and the operation safety of merchants is protected.
Drawings
FIG. 1 is a schematic diagram of the system operating principle of an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of a system motherboard according to an embodiment of the present invention;
FIG. 3 is a schematic circuit diagram of a system MCU board according to an embodiment of the present invention;
fig. 4 is a flow chart of the operation of an embodiment of the present invention.
Detailed Description
The following examples of the present invention will be described in detail, but the description should not be construed as limiting the scope of the present invention. All equivalent changes, modifications and the like made within the scope of the present invention shall fall within the protection and coverage of the present invention. In addition, it should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
Example 1
As shown in fig. 1-4, in the POS printer of the present invention, the cash register board end and the printer MCU board are connected by a cable. This design increases the INT signal over conventional circuits. The motherboard INT signal connects a 1K pull-down resistor to GND. The MCU _ INT signal of the printer board is directly connected with the MCU and is connected with a 10K pull-up resistor to 3.3V. Under normal conditions, the MCU detects that the MCU _ INT signal is low level, and when the printer is detached after the cable is unplugged, the MCU _ INT signal is pulled high. The RTC power supply MCU saves the information of being torn open, when connecting the cable and starting up the operation to the cash registering machine next time, MCU passes back through the USB signal to the mainboard end CPU by the information of being torn open, and the cash registering host computer receives the information and starts the machine of dying of lock of the mode of the screen, and reminds the trade company on the screen, and the printer has been attacked by the outside.
The design hardware comprises a mainboard, a printer board and a connecting cable. The cash register host board end and the printer MCU board are connected through a cable. When the printer is detached and the cable is pulled out, the printing MCU board hardware detects the detached information, and the MCU board stores the detached information. When the cable is connected again, the cash register mainboard receives the information of being torn open that the MCU board comes through USB transmission, locks the machine this moment, and the machine after being torn open can't continue to use, protection trade company's safety of operation.
Claims (2)
1. A POS printer anti-disassembly system is characterized in that an anti-disassembly circuit is arranged between a mainboard of a POS printer and a printing MCU board; after the MCU board detects that the cable is pulled out of the information, the anti-dismantling circuit records the pulling out information and transmits the pulling out information to the mainboard after the cable is connected again.
2. A POS printer anti-disassembly method is characterized by comprising the following steps:
an anti-disassembly circuit is arranged between the mainboard of the POS printer and the MCU board;
when the cable connected with the mainboard and the MCU board is pulled out, the MCU board detects and stores the information that the cable is pulled out;
when the cable is connected again, the information that the cable is pulled out is transmitted back to the mainboard;
and the mainboard enters a screen-up mode after receiving the information and locks the POS printer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011514166.7A CN114283538A (en) | 2020-12-20 | 2020-12-20 | POS printer anti-dismantling system and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011514166.7A CN114283538A (en) | 2020-12-20 | 2020-12-20 | POS printer anti-dismantling system and method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114283538A true CN114283538A (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011514166.7A Pending CN114283538A (en) | 2020-12-20 | 2020-12-20 | POS printer anti-dismantling system and method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN114283538A (en) |
Citations (8)
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|---|---|---|---|---|
| WO2010050678A2 (en) * | 2008-10-27 | 2010-05-06 | 주식회사 아이티웰 | Mobile pci pos terminal |
| CN105225368A (en) * | 2015-10-20 | 2016-01-06 | 福建新大陆支付技术有限公司 | A kind of POS stablizes Anti-dismounting structure and method thereof |
| CN206388283U (en) * | 2016-10-21 | 2017-08-08 | 青岛福瑞泰科智能科技有限公司 | A kind of Intelligent anti-cheating is traced to the source payment scale |
| CN206619225U (en) * | 2017-04-06 | 2017-11-07 | 深圳鼎智通讯股份有限公司 | FPC Anti-dismounting structures in a kind of POS |
| CN107368759A (en) * | 2017-08-31 | 2017-11-21 | 中惠创智无线供电技术有限公司 | A kind of equipment detatching-proof system |
| CN207020775U (en) * | 2017-07-07 | 2018-02-16 | 深圳易方数码科技股份有限公司 | Anti-dismantling electronic equipment and POS |
| CN108172974A (en) * | 2018-02-06 | 2018-06-15 | 深圳鼎智通讯股份有限公司 | A kind of compatible tamper and the POS machine winding structure of communication function |
| CN208240149U (en) * | 2018-06-26 | 2018-12-14 | 深圳鼎智通讯股份有限公司 | Front housing antiwithdrawal device in a kind of POS machine |
-
2020
- 2020-12-20 CN CN202011514166.7A patent/CN114283538A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010050678A2 (en) * | 2008-10-27 | 2010-05-06 | 주식회사 아이티웰 | Mobile pci pos terminal |
| CN105225368A (en) * | 2015-10-20 | 2016-01-06 | 福建新大陆支付技术有限公司 | A kind of POS stablizes Anti-dismounting structure and method thereof |
| CN206388283U (en) * | 2016-10-21 | 2017-08-08 | 青岛福瑞泰科智能科技有限公司 | A kind of Intelligent anti-cheating is traced to the source payment scale |
| CN206619225U (en) * | 2017-04-06 | 2017-11-07 | 深圳鼎智通讯股份有限公司 | FPC Anti-dismounting structures in a kind of POS |
| CN207020775U (en) * | 2017-07-07 | 2018-02-16 | 深圳易方数码科技股份有限公司 | Anti-dismantling electronic equipment and POS |
| CN107368759A (en) * | 2017-08-31 | 2017-11-21 | 中惠创智无线供电技术有限公司 | A kind of equipment detatching-proof system |
| CN108172974A (en) * | 2018-02-06 | 2018-06-15 | 深圳鼎智通讯股份有限公司 | A kind of compatible tamper and the POS machine winding structure of communication function |
| CN208240149U (en) * | 2018-06-26 | 2018-12-14 | 深圳鼎智通讯股份有限公司 | Front housing antiwithdrawal device in a kind of POS machine |
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