Light sensing device for anti-disassembly function of POS (Point Of Sale) machine terminal and POS machine terminal

Abstract

The utility model discloses a light sensing device for an anti-disassembly function of a POS machine terminal. The light sensing device comprises a detection control assembly, and a light emitting assembly and a light receiving assembly which are oppositely arranged in a non-contact manner during use, the light emitting assembly comprises a light emitter and a physical anti-tamper switch; the light receiving assembly comprises a light receiver and a hole groove; the physical anti-disassembly switch can penetrate through the hole groove to be connected to an anti-disassembly detection circuit outside the light sensing device. The light emitter and the light receiver can be connected to a safety detection circuit outside the light sensing device; the detection control assembly is used for detecting the distance between the light emitter and the light receiver, judging the size relation between the distance and a preset safety distance threshold value, and triggering the safety detection circuit when the distance is larger than the preset safety distance threshold value. According to the light sensing structure for the POS terminal tamper function, the light emitting assembly and the light receiving assembly do not need to be in zero-distance contact like two physical tamper switches in a traditional physical tamper scheme, and therefore the design tolerance requirement for structural parts is lowered.

Description

Technical Field

[0001] The present application relates to the field of POS terminal security technology, and more specifically, to a light sensing device and a POS terminal for an anti-tampering function of a POS terminal. Background Art

[0002] POS terminals are mainly used in the field of financial consumption. Because they involve financial security, they need to meet security assessment standards. Currently, the security technology solutions for various POS terminals are mainly physical anti-dismantling solutions.

[0003] The physical anti-disassembly solution is to connect an anti-disassembly switch (physical anti-disassembly switch) in series in the anti-disassembly detection circuit. Through the structural coordination of the POS terminal, the entire anti-disassembly detection circuit remains connected when the device is assembled properly. When the POS machine is attacked illegally and the structure of the POS machine is destroyed, the anti-disassembly detection circuit is disconnected, and the state change process of the anti-disassembly detection signal from connected to disconnected is detected by the security processor, thereby triggering the security protection logic of the security processor (i.e., triggering the security detection circuit), and the POS terminal cannot continue to work normally. The physical anti-disassembly solution has high requirements for structural coordination. The dimensions of the structural shell and the anti-disassembly switch must be within the design specifications, so that the assembled POS device is in normal state. When one of the dimensions of the structural shell and the anti-disassembly switch deviates from the design specifications, the assembled POS device will have problems.

[0004] The physical anti-tampering solution is highly dependent on the matching degree between the structural shell and the anti-tampering switch. Once the matching degree exceeds the tolerance of the design specifications, the POS device will not work properly. Utility Model Content

[0005] In response to at least one defect or improvement need in the prior art, the present application provides a light sensing device and a POS terminal for the anti-dismantling function of a POS terminal, aiming to solve the technical problem that traditional physical anti-dismantling solutions are too dependent on the matching degree between the structural shell and the anti-dismantling switch, have a low tolerance for design specifications, and easily cause the POS device to malfunction.

[0006] To achieve the above-mentioned purpose, in a first aspect, the present application provides a light sensing device for the anti-tampering function of a POS terminal, comprising: a detection control component, and a light emitting component and a light receiving component which are arranged opposite to each other without contact when in use;

[0007] The optical emission assembly includes an optical transmitter and a physical anti-tamper switch;

[0008] The light emitter is used to emit light of a preset wavelength band;

[0009] The physical anti-tamper switch is used to provide a signal conduction path;

[0010] The light receiving assembly includes a light receiver and an aperture slot;

[0011] The optical receiver is used to receive the light of the preset wavelength band;

[0012] The hole is used to position the physical anti-dismantle switch;

[0013] The physical anti-tamper switch can be connected to the anti-tamper detection circuit outside the light sensing device through the hole;

[0014] The light transmitter and the light receiver can be connected to a safety detection circuit outside the light sensing device;

[0015] The detection control component is used to detect the distance between the optical transmitter and the optical receiver, determine the relationship between the distance and a preset safety distance threshold, and trigger the safety detection circuit when the distance is greater than the preset safety distance threshold.

[0016] Furthermore, the light in the preset wavelength band is infrared light.

[0017] Furthermore, the light emitter and the physical anti-tamper switch are packaged into the light emitting assembly through a plastic structure.

[0018] Furthermore, the optical receiver and the hole are packaged into the optical receiving component through a plastic structure.

[0019] Furthermore, the physical anti-tampering switch is carbon particles and / or zebra strips.

[0020] Furthermore, the holes and slots are openings and / or slots.

[0021] Further, the optical transmission assembly includes a plurality of the physical anti-tampering switches;

[0022] The light receiving assembly includes a plurality of the apertures;

[0023] The number of the physical anti-tamper switches is the same as the number of the holes.

[0024] Further, the light emitting assembly includes a plurality of the light emitters;

[0025] The light receiving assembly includes a plurality of light receivers;

[0026] The number of the optical transmitters and the number of the optical receivers are the same.

[0027] In a second aspect, the present application provides a POS terminal, comprising any of the above-mentioned light sensing devices for the POS terminal anti-tampering function.

[0028] In general, the above technical solutions conceived by the present application can achieve the following beneficial effects compared with the prior art:

[0029] This application proposes a light sensing structure for the anti-disassembly function of a POS terminal. The light emitting component and the light receiving component do not need to be in zero-distance contact like the two physical anti-disassembly switches in the traditional physical anti-disassembly solution, thereby reducing the design tolerance requirements for the structural parts, making the shell structural parts for the POS machine easier to produce and improving the production efficiency of the shell. At the same time, the requirements for the assembly accuracy of the POS machine shell structure are reduced, making the assembly more convenient and easier, and improving the production efficiency of the assembly process section during the production of the POS machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of the structure of a light sensing device for POS terminal anti-tampering function provided in an embodiment of the present application;

[0032] Figure numerals: 1. optical transmitting component; 2. optical receiving component; 3. optical transmitter; 4. physical anti-tampering switch; 5. optical receiver; 6. hole slot. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. In addition, the technical features involved in each embodiment of the present application described below can be combined with each other as long as they do not conflict with each other.

[0034] The terms "including" or "having" and any variations thereof in the specification, claims or drawings of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0035] refer to Figure 1An embodiment of the present application provides a light sensing device for the anti-disassembly function of a POS terminal. The light sensing device mainly includes a detection control component, and three components: a light emitting component 1 and a light receiving component 2 that are arranged opposite to each other without contact when in use.

[0036] The optical transmission component 1 includes an optical transmitter 3 and a physical anti-tamper switch 4. The optical transmitter 3 is used to transmit light of a preset band, which is not specifically limited, and may be, for example, infrared light or ultraviolet light, etc. In this embodiment, commonly used infrared light is used as the light source emitted by the optical transmitter 3. The physical anti-tamper switch 4 is used to provide a signal conduction path.

[0037] The physical anti-disassembly switch 4 and the infrared emitter (the light emitter 3 in this embodiment is the infrared emitter) are encapsulated into an infrared emitter assembly (the light emitting assembly 1 in this embodiment is the infrared emitter assembly) through a plastic structure. The physical anti-disassembly switch 4 is a silicone carbon particle or a zebra strip, or a combination of silicone carbon particles and zebra strips, and the number of the physical anti-disassembly switch 4 is one or more. The infrared emitter is an infrared emitting diode molded in a transparent plastic with a flat-top lens, and the number is one or more. The shape of the infrared emitter assembly is not fixed, and the specific shape can be determined according to the specific structure of the POS terminal.

[0038] The light receiving assembly 2 includes a light receiver 5 and a hole slot 6. The light receiver 5 is used to receive light in a preset band. The light receiver 5 in this embodiment is an infrared receiver capable of receiving infrared light emitted by the aforementioned infrared transmitter. The hole slot 6 is used to accurately position the physical anti-tamper switch 4.

[0039] The hole slot 6 and the infrared receiver are encapsulated into an infrared receiver assembly (the light receiving assembly 2 in this embodiment is the infrared receiver assembly) through a plastic structure. The hole slot 6 can be an opening, a slot, or a combination of an opening and a slot (for example, the hole slot 6 is a round hole and / or a long slot), and the number of the holes and slots is the same as the number of physical anti-dismantling switches 4 of the infrared transmitter assembly. The infrared receiver is a phototransistor molded in a transparent plastic with a flat-top lens, and its spectrum matches that of the infrared transmitter, and the number of the infrared receiver is the same as the number of infrared transmitters in the infrared transmitter assembly. The shape of the infrared receiver assembly is also not fixed, and the specific shape can be determined according to the specific structure of the POS terminal.

[0040] The physical anti-tamper switch 4 can pass through the hole 6 to connect to the anti-tamper detection circuit outside the photosensitive device, that is, the physical anti-tamper switch 4 on the infrared transmitter assembly can pass through the hole 6 of the infrared receiver assembly to connect to the anti-tamper detection circuit outside the photosensitive device. The optical transmitter 3 and the optical receiver 5 can be connected to the safety detection circuit outside the photosensitive device so that the safety detection circuit can be triggered when the distance between them is large later.

[0041] The detection control component is used to detect the distance between the optical transmitter 3 and the optical receiver 5, determine the relationship between the distance and the preset safety distance threshold, and trigger the safety detection circuit when the distance is greater than the preset safety distance threshold. Figure 1 It is not shown in the figure, it can be a separate component or integrated in the optical transmitter 3 and / or the optical receiver 5, and is not specifically limited here.

[0042] The infrared transmitter assembly and the infrared receiver assembly are generally used in pairs. After assembly, the physical anti-tampering switch 4 in the infrared transmitter assembly passes through the hole 6 in the infrared receiver assembly and then connects to the anti-tampering detection circuit outside the light sensing device. The infrared transmitter is aligned with the sensing area of ​​the infrared receiver so that the infrared receiver can receive and sense the infrared light emitted by the infrared transmitter. The distance between the infrared transmitter assembly and the infrared receiver assembly can be determined according to the distance safety threshold.

[0043] When the POS terminal is illegally attacked by external force, the distance between the infrared transmitter component and the infrared receiver component (which can also be represented by the distance between the infrared transmitter and the infrared receiver) may increase. If the above structural distance generated by the external force is not greater than the distance safety threshold and greater than zero (greater than zero means non-contact), the safety detection circuit where the physical anti-disassembly switch of the traditional physical contact is located will be triggered first, while the safety detection circuit where the infrared transmitter and the infrared receiver are located will not be triggered; and when the distance between the infrared transmitter component and the infrared receiver component is greater than the above distance safety threshold, the safety detection circuit where the infrared transmitter and the infrared receiver are located will be triggered, and then the POS terminal will not be able to continue to work normally.

[0044] Traditional physical contact requires two physical anti-tampering switches to be in zero-distance contact, but the infrared transmitter assembly and infrared receiver assembly do not require such zero-distance contact, but adopt a non-contact light sensing solution. Therefore, when the structure is not in zero contact and the structure spacing is not greater than the distance safety threshold, the physical contact anti-tampering switch must be triggered first, and because the distance safety threshold has not been reached, the anti-tampering switch composed of the infrared transmitter assembly and the infrared receiver assembly will not be triggered at this time. When the structure spacing is greater than the above-mentioned distance safety threshold, the technical effects of using the infrared transmitter and infrared receiver assembly and using two traditional physical contact anti-tampering switches are the same, and the safety detection circuit will be triggered.

[0045] The present application specifically sets up a light-sensing structure for the anti-disassembly function of the POS terminal. The light-emitting component and the light-receiving component do not need to be in zero-distance contact like the two physical anti-disassembly switches in the traditional physical anti-disassembly solution, thereby reducing the design tolerance requirements for the structural parts, and thus making the shell structural parts for the POS machine easier to produce, thereby improving the production efficiency of the shell. At the same time, the requirements for the assembly accuracy of the POS machine shell structure are reduced, making the assembly more convenient and easier, and improving the production efficiency of the assembly process section during the production of the POS machine.

[0046] In another embodiment, the present application proposes a POS terminal, which includes the above-mentioned light sensing device for the anti-tampering function of the POS terminal. The specific structure of the light sensing device can refer to the above discussion and will not be repeated here. When the structure of the POS terminal is destroyed by illegal attacks, this new type of POS terminal will not be easily deviated from the normal working process, and the matching degree of the structural shell and the anti-tampering switch is not so high, thereby improving the availability and stability of the POS terminal.

[0047] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of the present disclosure may be combined and / or combined in a variety of ways, even if such combinations and / or combinations are not explicitly described in the present disclosure. In particular, without departing from the spirit and teachings of the present disclosure, the features described in the various embodiments and / or claims of the present disclosure may be combined and / or combined in a variety of ways, and all of these combinations and / or combinations fall within the scope of the present disclosure.

[0048] Although the present disclosure has been shown and described with reference to specific exemplary embodiments of the present disclosure, it should be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-mentioned embodiments, but should be determined not only by the appended claims, but also by the equivalents of the appended claims.

Claims

1. A light sensing device for POS terminal anti-tampering function, characterized in that: include: A detection control component, and a light emitting component (1) and a light receiving component (2) which are arranged opposite to each other without contact when in use; The light emitting assembly (1) comprises a light emitter (3) and a physical anti-disassembly switch (4); The light emitter (3) is used to emit light of a preset wavelength band; The physical anti-disassembly switch (4) is used to provide a signal conduction path; The light receiving assembly (2) comprises a light receiver (5) and a hole slot (6); The optical receiver (5) is used to receive light in the preset wavelength band; The hole (6) is used to position the physical anti-dismantle switch (4); The physical anti-tampering switch (4) can pass through the hole (6) to be connected to the anti-tampering detection circuit outside the light sensing device; The light transmitter (3) and the light receiver (5) can be connected to a safety detection circuit outside the light sensing device; The detection control component is used to detect the distance between the optical transmitter (3) and the optical receiver (5), determine the relationship between the distance and a preset safety distance threshold, and trigger the safety detection circuit when the distance is greater than the preset safety distance threshold.

2. The optical sensing device for POS terminal anti-tampering function as claimed in claim 1, characterized in that: The light in the preset wavelength band is infrared light.

3. The optical sensing device for POS terminal anti-tampering function as claimed in claim 1, characterized in that: The light emitter (3) and the physical anti-disassembly switch (4) are packaged into the light emitting assembly (1) through a plastic structure.

4. The optical sensing device for POS terminal anti-tampering function as claimed in claim 1, characterized in that: The light receiver (5) and the hole groove (6) are packaged into the light receiving component (2) through a plastic structure.

5. The optical sensing device for POS terminal anti-tampering function as claimed in claim 1, characterized in that: The physical anti-disassembly switch (4) is carbon particles and / or zebra stripes.

6. The optical sensing device for POS terminal anti-tampering function as claimed in claim 1, characterized in that: The holes and slots (6) are openings and / or slots.

7. The optical sensing device for POS terminal anti-tampering function as claimed in claim 1, characterized in that: The optical transmission component (1) comprises a plurality of the physical anti-dismantling switches (4); The light receiving component (2) comprises a plurality of holes (6); The number of the physical anti-disassembly switches (4) and the number of the holes (6) are the same.

8. The optical sensing device for POS terminal anti-tampering function as claimed in claim 1, characterized in that: The light emitting assembly (1) comprises a plurality of light emitters (3); The light receiving component (2) comprises a plurality of light receivers (5); The number of the optical transmitters (3) and the number of the optical receivers (5) are the same.

9. A POS terminal, characterized in that: A light sensing device for the anti-tampering function of a POS terminal comprising any one of claims 1-8.

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