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WO2018165947A1 - Machine de pos et dispositif de protection physique pour machine de pos - Google Patents

Machine de pos et dispositif de protection physique pour machine de pos Download PDF

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Publication number
WO2018165947A1
WO2018165947A1 PCT/CN2017/076970 CN2017076970W WO2018165947A1 WO 2018165947 A1 WO2018165947 A1 WO 2018165947A1 CN 2017076970 W CN2017076970 W CN 2017076970W WO 2018165947 A1 WO2018165947 A1 WO 2018165947A1
Authority
WO
WIPO (PCT)
Prior art keywords
pos
pos machine
protection device
conductive carbon
physical protection
Prior art date
Application number
PCT/CN2017/076970
Other languages
English (en)
Chinese (zh)
Inventor
谢振辉
刘正
Original Assignee
深圳大趋智能科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳大趋智能科技有限公司 filed Critical 深圳大趋智能科技有限公司
Priority to PCT/CN2017/076970 priority Critical patent/WO2018165947A1/fr
Priority to CN201780001539.0A priority patent/CN107820626A/zh
Publication of WO2018165947A1 publication Critical patent/WO2018165947A1/fr

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07G—REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
    • G07G1/00—Cash registers
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/86—Secure or tamper-resistant housings

Definitions

  • the present invention relates to the field of POS machines, and in particular to a physical protection device for a POS machine and a POS machine.
  • a POS machine is a sales terminal with a non-cash settlement function, and is widely used in supermarkets, chain stores, hypermarkets, restaurants, and the like. Because it involves money transactions such as bank cards, it has high requirements for its security performance. It is necessary to ensure that important data such as keys in the POS machine are not stolen.
  • the main object of the present invention is to provide a POS physical protection device with small volume and good reliability and a POS machine having the physical protection device of the POS machine.
  • the present invention provides a physical protection device for a POS machine, which is disposed inside the POS machine and includes conductive carbon particles, a solder resist layer, a parasitic capacitance, and a ground plane.
  • the solder resist layer, the parasitic capacitance, and the ground plane are all disposed on the PCB.
  • the two plates of the parasitic capacitor are respectively connected to the solder resist layer and the ground plane; the conductive carbon particles are pressed by the POS casing and contacted with the solder resist layer, and the conductive carbon particles are connected to the POS power supply; the solder resist layer is provided with input/output The port, the input/output port is connected to the processor of the POS machine, and the processor detects the charging and discharging of the parasitic capacitance.
  • the conductive carbon particles are cylindrical, and the two ends thereof are respectively abutted against the POS casing and the solder resist layer.
  • the conductive carbon particles have a cross-sectional diameter of 1 to 1.5 mm.
  • the parasitic capacitance has a capacitance of 5 pf to 20 pf.
  • the conductive carbon particles are connected to the POS power source through a resistor, and the resistance is 5 to 10 megahertz.
  • the input ⁇ output port is configured as a floating input mode, enabling and configuring a high-level interrupt, which begins to charge. [0011] Further, the outer side wall of the conductive carbon particle vertical solder resist layer is empty.
  • a POS machine comprising the above physical protection device of the POS machine.
  • the physical protection device of the POS machine and the POS machine of the invention adopts conductive carbon particles and a solder resist layer to form a touch barrier to replace the existing physical barrier, has small volume and low cost, and can be disposed as much as possible in a limited space. Multiple, forming multi-point arming, improve the safety of the POS machine, and its quality is very light, it is not easy to cause accidental collision in the case of shaking, etc., and the safety of the POS machine is also better.
  • FIG. 1 is a schematic structural view of an embodiment of a physical protection device for a POS device according to the present invention
  • FIG. 2 is a schematic diagram of an equivalent circuit of FIG. 1.
  • an embodiment of a POS physical protection device includes a conductive carbon particle 5, a solder resist layer 1, a parasitic capacitor 2, and a ground plane 3.
  • the POS physical protection device is disposed inside the POS machine.
  • the solder resist layer 1, the parasitic capacitor 2 and the ground plane 3 are all disposed on the PCB board 4; the two plates of the parasitic capacitor 2 are respectively connected to the solder resist layer 1 and the ground plane 3; the conductive carbon particles 5 are pressed by the POS casing
  • the solder resist layer 1 is in contact, the conductive carbon particles 5 are connected to the POS power supply 7; the solder resist layer 1 is provided with an input/output port 8, the input/output port 8 is a GPIO, and the input/output port 8 is connected to the processor of the POS machine, and the processing is performed.
  • the device detects the charge and discharge of the parasitic capacitance 2.
  • the POS machine normally receives the contact with the solder resist layer 1 by the outer shell, and the touch barrier 9 is closed.
  • the conductive carbon particles 5 go Except for the shell extrusion, it will be separated from the solder resist layer 1.
  • the processor will detect the abnormality and judge the POS machine is not safe.
  • the daytime reading code includes information such as the time required for the parasitic capacitance 2 to be fully charged, the error range allowed during the day. ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,
  • the touch switch 9 is closed, when the GPIO is set as the output and the output is low, the parasitic capacitance 2 is discharged until the parasitic capacitance 2 is zero; when the GPIO is set to the floating input mode, POS The power supply 7 charges the parasitic capacitor 2 and starts counting the charging time. When the parasitic capacitor 2 is fully charged, the charging behavior is automatically interrupted. At the end of this calculation, the data between the charging is sent to the processor, and the charging time is charged. Compared with the setting in the processor, it can be judged whether the capacitance of the parasitic capacitance 2 changes by the change of the charging time. When the capacitance changes beyond the allowable variation range of the set point, it is determined that the POS machine is no longer safe.
  • the charge and discharge condition of the parasitic capacitance 2 includes whether the parasitic capacitance 2 can be charged and the parasitic capacitance 2 is used for charging.
  • the processor determines whether or not the conductive carbon particles 5 are detached and the capacitance of the parasitic capacitance 2 changes when the conductive carbon particles 5 are detached by the charge and discharge condition of the parasitic capacitance 2; when the capacitance of the parasitic capacitance 2 changes, it may be a POS
  • the machine is filled with glue and other materials to fix the conductive carbon particles 5 and then the shell is removed. On behalf of the POS machine, there is a risk of modification. It is no longer safe to be properly handled. The monitoring of the physical protection device of the POS machine can reduce the risk of using the POS machine.
  • the conductive carbon particles 5 are cylindrical, and their ends are respectively abutted against the POS casing and the solder resist layer 1.
  • the conductive carbon particles 5 have a cross-sectional diameter of 1 to 1.5 mm.
  • the physical protection device of the POS machine is small in size, and the cost is relatively low.
  • the physical protection device of multiple POS machines can be set in one POS machine to reduce the risk that the physical protection device of the PO S machine is targeted.
  • the parasitic capacitance 2 has a capacitance of 5 pf to 20 pf.
  • the small capacitance can be more sensitive to changes in capacitance, and it is less likely to be handled, and the safety of POS machines is higher.
  • the conductive carbon particles 5 are connected to the POS power source 7 through the resistor 6, and the resistor 6 functions as a protection circuit to prevent the current in the circuit from being excessive, and the resistor 6 is 5 to 10 megahertz.
  • Resistor 6 is suitable for today's POS power supply 7 and parasitic capacitance 2 The circuit where the capacitor is located.
  • the input/output port 8 when the input/output port 8 is set as an output and outputs a low level, the parasitic capacitance 2 is discharged; the input/output port 8 is configured as a floating input mode, enabled and configured high. Level interrupt, this parasitic capacitor 2 starts to charge.
  • the outer side wall of the conductive carbon particle 5 vertical solder resist layer 1 is empty, that is, there is no other medium outside the conductive carbon particle 5, and there are other connection solder resist layers around the conductive carbon particle 5.
  • the solid or liquid medium ⁇ the capacitance of the parasitic capacitance 2 changes.
  • the processor monitors the capacitance of the parasitic capacitance 2, thereby monitoring the situation that the POS machine is artificially modified and the POS machine is not safe enough to ensure the safety of the POS machine. Sex.
  • the POS machine is provided with a physical protection device for the POS machine to protect from the hardware side, and also has an anti-modification protection setting from the software side to fully protect the POS machine, and the POS machine has higher security.
  • the POS physical protection device of the present invention uses conductive carbon particles and the solder resist layer 1 to form a touch barrier 9 instead of the existing physical barrier, which is small in size and low in cost, and can be set as much as possible in a limited space.
  • the formation of multi-point arming improves the safety of the POS machine, and its quality is very light. It is not easy to cause accidental collision under shaking and the like, and the safety of the POS machine is also better.
  • the present invention also includes a POS machine including the above-described POS physical protection device.
  • the POS machine of the present invention adopts the above physical protection device of the POS machine, has small volume and low cost, and can be arranged as many as possible in a limited space to form a multi-point arming, thereby improving the safety of the POS machine, and the quality thereof. Very light, it is not easy to cause accidental bumps when shaking, etc., and the safety of the POS machine is better.
  • Al a POS physical protection device, is disposed inside the POS machine, and includes conductive carbon particles and a solder resist layer
  • solder resist layer the parasitic capacitance and the ground plane are both disposed on the PCB;
  • the two plates of the parasitic capacitance are respectively connected to the solder resist layer and the ground plane;
  • the conductive carbon particles are pressed by the POS casing to contact the solder resist layer, and the conductive carbon particles are connected to the POS machine. power supply;
  • the solder resist layer is provided with an input ⁇ output port, and the input/output port is connected to a processor of the POS machine, and the processor detects a charge and discharge condition of the parasitic capacitance.
  • a 2 The POS physical protection device as described in A1, wherein the conductive carbon particles are cylindrical, and the two ends thereof respectively abut the POS casing and the solder resist layer.
  • a 3 The physical protection device of the POS machine as described in A 1, wherein the conductive carbon particles have a cross-sectional diameter of 1 to 1.5 mm.
  • a 6 The POS physical protection device according to A1, wherein when the input/output port is set as an output and outputs a low level, the parasitic capacitance is discharged; the input/output port configuration For floating mode, enable and configure a high-level interrupt, and the parasitic capacitor begins to charge.
  • Bl a POS machine, comprising the physical protection device of the POS machine according to any one of A1-7.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Metallic Protective Coatings For Printed Circuits (AREA)
  • Elimination Of Static Electricity (AREA)

Abstract

L'invention concerne une machine de POS et un dispositif de protection physique pour la machine de POS. Le dispositif de protection physique pour la machine de POS est disposé sur la machine de POS, et comprend des particules de carbone conductrices (5), un masque de soudure (1), un condensateur parasite (2) et un plan de mise à la masse (3). Le masque de soudure (1), le condensateur parasite (2) et le plan de mise à la masse (3) se trouvent tous sur une PCB (4). Deux plaques polaires du condensateur parasite (2) sont connectées respectivement au masque de soudure (1) et au plan de mise à la masse (3). Les particules de carbone conductrices (5) sont pressées par le boîtier de la machine de POS et sont en contact avec le masque de soudure (1), et les particules de carbone conductrices (5) sont connectées à une alimentation électrique (7) de la machine de POS. Le masque de soudure (1) est doté d'un port d'entrée/sortie (8) connecté à un processeur de la machine de POS.
PCT/CN2017/076970 2017-03-16 2017-03-16 Machine de pos et dispositif de protection physique pour machine de pos WO2018165947A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2017/076970 WO2018165947A1 (fr) 2017-03-16 2017-03-16 Machine de pos et dispositif de protection physique pour machine de pos
CN201780001539.0A CN107820626A (zh) 2017-03-16 2017-03-16 Pos机及pos机物理保护装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/076970 WO2018165947A1 (fr) 2017-03-16 2017-03-16 Machine de pos et dispositif de protection physique pour machine de pos

Publications (1)

Publication Number Publication Date
WO2018165947A1 true WO2018165947A1 (fr) 2018-09-20

Family

ID=61606916

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/076970 WO2018165947A1 (fr) 2017-03-16 2017-03-16 Machine de pos et dispositif de protection physique pour machine de pos

Country Status (2)

Country Link
CN (1) CN107820626A (fr)
WO (1) WO2018165947A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1432031A1 (fr) * 2002-12-20 2004-06-23 Lipman Electronic Engineering Ltd. Boitier inviolable pour des circuits électroniques
CN201210295Y (zh) * 2008-06-10 2009-03-18 福建联迪商用设备有限公司 一种利用导电碳粒的防揭保护装置
CN102509052A (zh) * 2011-10-28 2012-06-20 深圳市新国都技术股份有限公司 电子设备触摸屏安全保护方法与装置
CN205230215U (zh) * 2015-12-17 2016-05-11 恒宝股份有限公司 一种防入侵pos机
CN105825599A (zh) * 2016-04-06 2016-08-03 上海动联信息技术股份有限公司 一种pos机防侵入的多重保护系统、方法以及pos机
CN206557923U (zh) * 2017-03-14 2017-10-13 深圳大趋智能科技有限公司 Pos机及pos机物理保护装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201223471D0 (en) * 2012-12-28 2013-02-13 Johnson Electric Sa Electronic device with tamper resistant enclosure
GB2515996A (en) * 2013-04-15 2015-01-14 Johnson Electric Sa Security wrap with tearable substrate
CN106096463B (zh) * 2016-06-08 2019-02-19 福建联迪商用设备有限公司 一种基于电容检测原理的防揭检测系统及方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1432031A1 (fr) * 2002-12-20 2004-06-23 Lipman Electronic Engineering Ltd. Boitier inviolable pour des circuits électroniques
CN201210295Y (zh) * 2008-06-10 2009-03-18 福建联迪商用设备有限公司 一种利用导电碳粒的防揭保护装置
CN102509052A (zh) * 2011-10-28 2012-06-20 深圳市新国都技术股份有限公司 电子设备触摸屏安全保护方法与装置
CN205230215U (zh) * 2015-12-17 2016-05-11 恒宝股份有限公司 一种防入侵pos机
CN105825599A (zh) * 2016-04-06 2016-08-03 上海动联信息技术股份有限公司 一种pos机防侵入的多重保护系统、方法以及pos机
CN206557923U (zh) * 2017-03-14 2017-10-13 深圳大趋智能科技有限公司 Pos机及pos机物理保护装置

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