CN205177020U - Protection architecture and device are prevented tearing open by POS machine - Google Patents
Protection architecture and device are prevented tearing open by POS machine Download PDFInfo
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- CN205177020U CN205177020U CN201520910614.3U CN201520910614U CN205177020U CN 205177020 U CN205177020 U CN 205177020U CN 201520910614 U CN201520910614 U CN 201520910614U CN 205177020 U CN205177020 U CN 205177020U
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- resistance
- contact
- pos
- hall element
- amplifier
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Abstract
The utility model discloses a protection architecture is prevented tearing open by the POS machine, including setting up at the PCB board of POS built -in portion, set up respectively conductive contact and magnet at the POS casing body, be provided with hall sensor and safety contact on the PCB board, the conductive contact is connected with the safety contact contact, hall sensor is used for responding to the magnetic field signal of magnet. A protection device is prevented tearing open by the POS machine, more than includes prevent tearing open protection architecture, still include a sensor circuit, the sensor circuit includes first power end, second source end, condenser and enlarged module. The utility model discloses a magnet and hall sensor's range finding structure for when preventing that it became invalid to tear safety contact open, hall sensor produces a triggering signal and gives CPU, and then ensures that user's data are not stolen, and the security performance promotes by a wide margin, but wide application in POS machine application.
Description
Technical field
The utility model relates to the tamper technology of POS application, particularly a kind of POS anti-dismounting protection structure and device.
Background technology
As everyone knows, along with the progress in epoch and the development of payment technology, POS bankcard consumption is adopted to become a kind of trend.Therefore, a kind of POS Anti-dismounting structure is provided to be necessary very much to provide the bankcard consumption environment of consumer's safety to become.For POS, it mainly needs the region protected to have: button, liquid crystal display, core control area, IC-card seat, magnetic head, mainboard and fore shell, fender and back cover.Current industry mainly uses tamper safety contact and MASH line wallboard two kinds of modes to protect internal layer circuit respectively.And these common tampers design exists certain defect because of it, can only be applied in the circuit of Generally Recognized as safe grade.Then can not perform the trigger protection program of tamper safety contact when POS is subject to external damage (as being removed), then there is the danger of leaking in the data message of user.
Utility model content
In order to solve the problems of the technologies described above, the purpose of this utility model is to provide a kind of anti-dismounting protection structure when POS is split and device.
The technical scheme that the utility model adopts is: a kind of POS anti-dismounting protection structure, comprises the pcb board being arranged on POS inside, the conductive contact being separately positioned on POS housing and magnet, described pcb board is provided with Hall element and safety contact; Described conductive contact contacts with safety contact and connects, and described Hall element is used for the field signal of induced magnet.
As the improvement of this technical scheme, described Hall element is positioned at pcb board bottom.
As the improvement of this technical scheme, described safety contact is positioned at pcb board top layer.
As the improvement of this technical scheme, described magnet is positioned on conductive contact.
As the improvement of this technical scheme, described safety contact and conductive contact are at least one.
As the further improvement of this technical scheme, described conductive contact and safety contact are one to one.
As the further improvement of this technical scheme, described conductive contact is electric silica gel contact.
The utility model also provides a kind of POS detaching-proof protection device, comprises above-described anti-dismounting protection structure, also comprises a sensor circuit; Described sensor circuit comprises the first power end, second source end, capacitor and amplification module; First port of described Hall element is connected with the first power end of sensor circuit, second port of Hall element is connected with one end of described capacitor, 3rd port ground connection of Hall element, the other end of described capacitor is connected with one end of amplification module, and described second source end is connected with the other end of amplification module.
As the improvement of this technical scheme, described amplification module comprises amplifier, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance and has the triode of on-off action, described one end of first resistance is connected with the reverse input end of amplifier, the other end of the first resistance and the second resistant series ground connection, one end of 3rd resistance connects the reverse input end of amplifier, the other end of the 3rd resistance connects the output terminal of amplifier, one end of 4th resistance connects the output terminal of amplifier, the base stage of the other end connecting triode of the 4th resistance, the positive input of described amplifier is connected with one end of the 5th resistance, the other end ground connection of the 5th resistance, the collector of described triode is connected with second source end by the 6th resistance, the grounded emitter of described triode.
As the further improvement of this technical scheme, also comprise for the treatment of the CPU of data and the FLASH for storing data, described FLASH and CPU connects, and the input end of described CPU is connected with the collector of triode.
The beneficial effects of the utility model are: the POS anti-dismounting protection structure that the utility model provides and device; owing to which employs the distance measuring structure of magnet and Hall element; make when tamper safety contact lost efficacy; Hall element can produce a trigger pip to CPU; and then ensureing that the data of user are not stolen, security performance significantly promotes.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
Fig. 1 is the schematic diagram of a kind of POS anti-dismounting protection structure of the utility model;
Fig. 2 is the operating circuit schematic diagram of a kind of POS detaching-proof protection of the utility model device.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Referring to figs. 1 through Fig. 2, a kind of POS anti-dismounting protection structure, comprises the pcb board 4 being arranged on POS inside, the conductive contact being separately positioned on POS housing and magnet 1, described pcb board 4 is provided with Hall element 5 and safety contact 3; Described conductive contact contacts with safety contact 3 and connects, and described Hall element 5 is for the field signal of induced magnet 1.
As the improvement of this technical scheme, described Hall element 5 is positioned at pcb board 4 bottom.
As the improvement of this technical scheme, described safety contact 3 is positioned at pcb board 4 top layer.
As the improvement of this technical scheme, described magnet 1 is positioned on conductive contact.
As the improvement of this technical scheme, described safety contact 3 and conductive contact are at least one.
As the further improvement of this technical scheme, described conductive contact and safety contact 3 are one to one.
As the further improvement of this technical scheme, described conductive contact is electric silica gel contact 2.
The utility model also provides a kind of POS detaching-proof protection device, comprises above-described anti-dismounting protection structure, also comprises a sensor circuit, described sensor circuit comprises the first power end, second source end, capacitor C1 and amplification module, first port of described Hall element 5 is connected with the first power end of sensor circuit, second port of Hall element 5 is connected with one end of described capacitor C1,3rd port ground connection of Hall element 5, the described other end of capacitor C1 is connected with one end of amplification module, and described second source end is connected with the other end of amplification module, described amplification module comprises amplifier, the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6 and has the triode Q1 of on-off action, one end of described first resistance R1 is connected with the reverse input end of amplifier, the other end of the first resistance R1 is connected with the second resistance R2 and ground connection, one end of 3rd resistance R3 connects the reverse input end of amplifier, the other end of the 3rd resistance R3 connects the output terminal of amplifier, one end of 4th resistance R4 connects the output terminal of amplifier, the base stage of the other end connecting triode Q1 of the 4th resistance R4, the positive input of described amplifier is connected with one end of the 5th resistance R5, the other end ground connection of the 5th resistance R5, the collector of described triode Q1 is connected with second source end by the 6th resistance R6, the grounded emitter of described triode Q1.Also comprise for the treatment of the CPU of data and the FLASH for storing data, described FLASH and CPU connects, and the input end of described CPU is connected with the collector of triode Q1.Like this when tamper safety contact is destroyed and lost efficacy, Hall element can produce a trigger pip to CPU, and is deleted by the user data in FLASH, in case be stolen, and then ensures the data security of user.
With reference to Fig. 1, it is the schematic diagram of a kind of POS anti-dismounting protection structure of the utility model.Be followed successively by magnet 1, electric silica gel contact 2, pcb board 4, safety contact 3 and Hall element 5 from top to bottom, described Hall element 5 is positioned at the bottom of pcb board 4, and safety contact 3 is positioned at pcb board 4 top layer; Described electric silica gel contact 2 contacts with safety contact 3 and connects.Described magnet 1 is positioned on electric silica gel contact 2.Described safety contact 3 and electric silica gel contact 2 are at least one.Described electric silica gel contact 2 is one to one with safety contact 3.Placed a Hall element 5 at the bottom of pcb board 4, and on the electric silica gel contact 2 of correspondence, placed a magnet 1 constitute a set of distance perspective and answer pick-up unit, namely constitute a kind of POS anti-dismounting protection structure.This structure, when safety contact lost efficacy, utilizes this distance detection device, can trigger Hall element running.
With reference to Fig. 2, it is the operating circuit schematic diagram of a kind of POS detaching-proof protection of the utility model device.First port of Hall element is connected with the first power end of sensor circuit, second port of Hall element is connected with one end of described capacitor C1,3rd port ground connection of Hall element, the described other end of capacitor C1 is connected with one end of amplification module, and described second source end is connected with the other end of amplification module, described amplification module comprises amplifier, has the triode Q1 of on-off action and the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5 and the 6th resistance R6, one end of described first resistance R1 is connected with the reverse input end of amplifier, the other end of the first resistance R1 is connected with the second resistance R2 and ground connection, one end of 3rd resistance R3 connects the reverse input end of amplifier, the other end of the 3rd resistance R3 connects the output terminal of amplifier, one end of 4th resistance R4 connects the output terminal of amplifier, the base stage of the other end connecting triode Q1 of the 4th resistance R4, the positive input of described amplifier is connected with one end of the 5th resistance R5, the other end ground connection of the 5th resistance R5, the collector of described triode Q1 is connected with second source end by the 6th resistance R6, the grounded emitter of described triode Q1.Magnet is placed in the front end of Hall element, when safety contact is destroyed and lost efficacy, magnet movement and cause the change in magnetic field, due to the change in magnetic field, Hall element sends triggering signal transmissions and processes to CPU, the data be stored in FLASH are also deleted, and then ensure that the data of user are not stolen by CPU work.
The beneficial effects of the utility model are: the POS anti-dismounting protection structure that the utility model provides and device; owing to which employs the distance measuring structure of magnet and Hall element; make when tamper safety contact lost efficacy; Hall element can produce a trigger pip to CPU; and then ensureing that the data of user are not stolen, security performance significantly promotes.
More than that better enforcement of the present utility model is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and these equivalent distortion or replacement are all included in the application's claim limited range.
Claims (10)
1. a POS anti-dismounting protection structure, is characterized in that: comprise the pcb board being arranged on POS inside, the conductive contact being separately positioned on POS housing and magnet, described pcb board is provided with Hall element and safety contact; Described conductive contact contacts with safety contact and connects, and described Hall element is used for the field signal of induced magnet.
2. anti-dismounting protection structure according to claim 1, is characterized in that: described Hall element is positioned at pcb board bottom.
3. anti-dismounting protection structure according to claim 1 and 2, is characterized in that: described safety contact is positioned at pcb board top layer.
4. anti-dismounting protection structure according to claim 3, is characterized in that: described magnet is positioned on conductive contact.
5. anti-dismounting protection structure according to claim 4, is characterized in that: described safety contact and conductive contact are at least one.
6. anti-dismounting protection structure according to claim 5, is characterized in that: described conductive contact and safety contact are one to one.
7. anti-dismounting protection structure according to claim 6, is characterized in that: described conductive contact is electric silica gel contact.
8. a POS detaching-proof protection device, is characterized in that: comprise the anti-dismounting protection structure described in any one of claim 1 ~ 7, also comprises a sensor circuit; Described sensor circuit comprises the first power end, second source end, capacitor and amplification module; First port of described Hall element is connected with the first power end of sensor circuit, second port of Hall element is connected with one end of described capacitor, 3rd port ground connection of Hall element, the other end of described capacitor is connected with one end of amplification module, and described second source end is connected with the other end of amplification module.
9. detaching-proof protection device according to claim 8, is characterized in that: described amplification module comprises amplifier, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance and has the triode of on-off action, described one end of first resistance is connected with the reverse input end of amplifier, the other end of the first resistance and the second resistant series ground connection, one end of 3rd resistance connects the reverse input end of amplifier, the other end of the 3rd resistance connects the output terminal of amplifier, one end of 4th resistance connects the output terminal of amplifier, the base stage of the other end connecting triode of the 4th resistance, the positive input of described amplifier is connected with one end of the 5th resistance, the other end ground connection of the 5th resistance, the collector of described triode is connected with second source end by the 6th resistance, the grounded emitter of described triode.
10. detaching-proof protection device according to claim 9, is characterized in that: also comprise for the treatment of the CPU of data and the FLASH for storing data, and described FLASH and CPU connects, and the input end of described CPU is connected with the collector of triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520910614.3U CN205177020U (en) | 2015-11-16 | 2015-11-16 | Protection architecture and device are prevented tearing open by POS machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520910614.3U CN205177020U (en) | 2015-11-16 | 2015-11-16 | Protection architecture and device are prevented tearing open by POS machine |
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| Publication Number | Publication Date |
|---|---|
| CN205177020U true CN205177020U (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520910614.3U Expired - Fee Related CN205177020U (en) | 2015-11-16 | 2015-11-16 | Protection architecture and device are prevented tearing open by POS machine |
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| Country | Link |
|---|---|
| CN (1) | CN205177020U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106096463A (en) * | 2016-06-08 | 2016-11-09 | 福建联迪商用设备有限公司 | A kind of tamper-evident detecting system based on capacitance detecting principle and method |
| CN108280946A (en) * | 2018-04-09 | 2018-07-13 | 上海商米科技有限公司 | Electronic equipment antiwithdrawal device and electronic equipment |
-
2015
- 2015-11-16 CN CN201520910614.3U patent/CN205177020U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106096463A (en) * | 2016-06-08 | 2016-11-09 | 福建联迪商用设备有限公司 | A kind of tamper-evident detecting system based on capacitance detecting principle and method |
| WO2017210996A1 (en) * | 2016-06-08 | 2017-12-14 | 福建联迪商用设备有限公司 | Tamper-evident detection system and method based on capacitance detection principle |
| CN106096463B (en) * | 2016-06-08 | 2019-02-19 | 福建联迪商用设备有限公司 | A kind of tamper-evident detection system and method based on capacitance detecting principle |
| CN108280946A (en) * | 2018-04-09 | 2018-07-13 | 上海商米科技有限公司 | Electronic equipment antiwithdrawal device and electronic equipment |
| CN108280946B (en) * | 2018-04-09 | 2024-01-05 | 上海商米科技集团股份有限公司 | Electronic equipment anti-disassembling device and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20191116 |
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| CF01 | Termination of patent right due to non-payment of annual fee |