CN106530524B - Anti-attack keyboard and teller machine - Google Patents
Anti-attack keyboard and teller machine Download PDFInfo
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- CN106530524B CN106530524B CN201610940038.6A CN201610940038A CN106530524B CN 106530524 B CN106530524 B CN 106530524B CN 201610940038 A CN201610940038 A CN 201610940038A CN 106530524 B CN106530524 B CN 106530524B
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F19/00—Complete banking systems; Coded card-freed arrangements adapted for dispensing or receiving monies or the like and posting such transactions to existing accounts, e.g. automatic teller machines
- G07F19/20—Automatic teller machines [ATMs]
- G07F19/205—Housing aspects of ATMs
- G07F19/2055—Anti-skimming aspects at ATMs
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Abstract
The invention discloses an anti-attack keyboard and a teller machine, wherein the anti-attack keyboard comprises a plurality of keys, a panel, a main control board assembly and a lining plate arranged between the panel and the main control board assembly, the panel and the lining plate are respectively provided with a plurality of key holes, the keys are arranged in the key holes, the panel is provided with a plurality of panel guide posts, the lining plate is provided with a plurality of lining plate guide post holes, the main control board assembly is provided with a control circuit for realizing a self-destruction function, the control circuit is provided with a guide post switch, and the panel guide posts penetrate through the lining plate guide post holes and are electrically connected with the guide post switch. When a lawbreaker pries open the panel, the electrical connection between the guide posts and the guide post switches of the panel is disconnected, the control circuit is disconnected and is sensed, and the self-destruction function is triggered, so that the main chip of the keyboard deletes sensitive information, and related functions are disabled, thereby preventing the lawbreaker from stealing bank data.
Description
Technical Field
The invention relates to the technical field of information security, in particular to an anti-attack keyboard and a teller machine.
Background
The teller machine brings convenience to the life of people, and certain information safety risks exist correspondingly. Because the password keyboard of the teller machine bears the work of inputting bank passwords and encrypting sensitive information, the core processing part of the keyboard stores the work key and the master key of the bank. Some lawbreakers often steal the bank password of the user by prying or probing the keyboard, and even read the work key and the master key of the bank, so as to achieve the purpose of stealing the bank data and directly threaten the safety of the user, the bank data and the fund.
In order to eliminate the safety risk, a conductive silica gel plate is arranged between the keyboard panel of some encryption keyboards and the contact surface of the main control board in the prior art. When the keyboard is installed on the installation panel of the teller machine, the panel presses the conductive silicone plate, so that the conductive contact on the conductive silicone plate contacts and conducts the disconnected removal detection contact on the main control board to form a passage. When the keyboard is illegally detached, the conductive contact on the conductive silica gel plate leaves the removal detection contact on the main control board to form an open circuit to be sensed, and the removal detection protection circuit is triggered to enable the keyboard main chip to delete the sensitive information and disable the related functions, so that a lawbreaker is prevented from stealing bank data.
However, the protection method of the encryption keyboard is single, because the conductive silica gel plate is made of soft materials, if a lawbreaker pries the teller machine, an object is adopted to press the conductive contact to prevent the self-destruction of the keyboard, and then the keyboard is removed, so that the bank information can be stolen.
In view of the above, there is a need to provide a new anti-attack keyboard.
Disclosure of Invention
The invention mainly aims to provide an anti-attack keyboard, aiming at solving the problem that the bank data is stolen.
In order to achieve the purpose, the anti-attack keyboard provided by the invention comprises a plurality of keys, a panel, a main control board assembly and a lining board arranged between the panel and the main control board assembly, wherein a plurality of key holes are formed in the panel and the lining board, the keys are arranged in the key holes, a plurality of panel guide pillars are arranged on the panel, a plurality of lining board guide pillar holes are formed in the lining board, a control circuit for realizing the self-destruction function is arranged on the main control board assembly, a guide pillar switch is arranged on the control circuit, and the panel guide pillars penetrate through the lining board guide pillar holes and are electrically connected with the guide pillar switch.
Preferably, the attack-prevention keyboard further comprises a box body with an opening, the lining plate seals the opening on the box body, and the main control plate assembly is accommodated in a space formed by the lining plate and the box body together.
Preferably, the anti-attack keyboard further comprises a bracket arranged between the box body and the main control board assembly, the bracket is provided with a plurality of bracket guide posts, the control circuit is further provided with a plurality of first contacts, and the box body presses the bracket guide posts to enable the bracket guide posts to be in contact with the first contacts.
Preferably, the bracket is fixed on the main control board assembly, a bracket guide post hole is formed in the bracket, a bracket conductive contact and a mounting ring surrounding the bracket conductive contact are arranged at a first end of the bracket guide post, the bracket guide post is fixed on the bracket guide post hole through the mounting ring, and the box body presses a second end of the bracket guide post to enable the bracket conductive contact to be in contact with the first contact.
Preferably, the bracket and the bracket guide post are of an integrated structure.
Preferably, the bracket is provided with a plurality of exhaust grooves, and the exhaust grooves are communicated with the inner side and the outer side of the mounting ring.
Preferably, the anti-attack keyboard further comprises a flexible backing plate arranged between the backing plate and the main control plate assembly, the flexible backing plate is provided with a plurality of key seats and a plurality of first backing plate guide pillars, the keys penetrate through the key holes and are mounted on the key seats, and the panel guide pillars penetrate through the backing plate guide pillar holes and are connected with the guide pillar switches through the first backing plate guide pillars;
the flexible base plate is further provided with a plurality of second base plate guide columns, the second base plate guide columns are arranged between adjacent key bases, the control circuit is further provided with a plurality of second contacts, and the second base plate guide columns are pre-pressed on the second contacts of the main control plate assembly.
Preferably, the flexible base plate is further provided with a plurality of third base plate guide pillars, the third base plate guide pillars are distributed along the edge of the flexible base plate, the control circuit is further provided with a plurality of third contacts, and the third base plate guide pillars are pre-pressed on the third contacts of the main control plate assembly.
Preferably, the flexible backing plate is a silica gel plate.
In addition, the invention also provides a teller machine, wherein the teller machine comprises a teller machine main body and the anti-attack keyboard, and the anti-attack keyboard is arranged on the teller machine main body.
In the technical scheme, the panel guide post on the panel penetrates through the lining plate guide post hole to be electrically connected with the guide post switch on the control circuit, when a lawbreaker pries off the panel, the electrical connection between the panel guide post and the guide post switch is disconnected, the control circuit is disconnected and is sensed, and the self-destruction function is triggered, so that the keyboard main chip deletes sensitive information, and related functions are forbidden, thereby preventing the lawbreaker from stealing bank data.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is apparent that,
the drawings in the following description are only some embodiments of the invention and other drawings can be derived from the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of an anti-attack keyboard of the present invention;
FIG. 2 is a bottom view of the anti-attack keyboard of the present invention;
FIG. 3 is a front exploded perspective view of the anti-attack keyboard of the present invention;
FIG. 4 is a rear exploded perspective view of the anti-attack keyboard of the present invention;
FIG. 5 is a front view of the bracket with bracket guide posts;
FIG. 6 is a cross-sectional view A-A of FIG. 5;
FIG. 7 is a front view of the bracket;
FIG. 8 is a perspective view of the flexible pallet;
FIG. 9 is a front perspective view of the cartridge body;
FIG. 10 is a rear perspective view of the cartridge body;
fig. 11 is a front view of the first contact.
The reference numbers illustrate:
the implementation, functional features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the figure), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it is necessary that a person skilled in the art can realize the technical solutions, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
The invention provides an anti-attack keyboard, aiming at solving the problem that the bank data is stolen.
Referring to fig. 1 to 4, in an embodiment of the present invention, the anti-attack keyboard includes a plurality of keys 1, a panel 2, a main control board assembly 5 and a lining board 3 disposed between the panel 2 and the main control board assembly 5, the panel 2 and the lining board 3 are both provided with a plurality of key holes, the keys 1 are mounted in the key holes, wherein the panel 2 is provided with a plurality of panel guide posts 21, the lining board 3 is provided with a plurality of lining board guide post holes 31, the main control board assembly 5 is provided with a control circuit for implementing a self-destruction function, the control circuit is provided with a guide post switch 531, and the panel guide posts 21 pass through the lining board guide post holes 31 and are electrically connected to the guide post switch 531. In the above technical solution, the panel guide post 21 on the panel 2 passes through the lining plate guide post hole 31 to be electrically connected with the guide post switch 531 on the control circuit, which is the first heavy self-destruction protection measure, when a lawless person pries off the panel 2, the electrical connection between the panel guide post 21 and the guide post switch 531 is disconnected, the control circuit is disconnected and sensed, and the self-destruction function is triggered, so that the keyboard main chip deletes sensitive information, and related functions are disabled, thereby preventing the lawless person from stealing bank data.
The main control board assembly 5 includes a flexible circuit board 51, a limiting sheet 52 and a main control board 53, which are sequentially stacked, a guide pillar switch 531 is disposed on the main control board 53, and a first contact 534, a second contact 532 and a third contact 533, which are all mentioned below, are also disposed on the main control board 53. The guide post switch 531 can be a dome spring switch, the panel guide post 21 is a metal post, the first end of the panel guide post 21 is fixed on the panel 2, the second end of the panel guide post 21 is electrically connected with the guide post switch 531 through the first cushion plate guide post 41, when a lawless person pries open the panel 2, the electrical connection between the panel guide post 21 and the guide post switch 531 is disconnected, the control circuit is disconnected and is sensed, and the self-destruction function is triggered.
As shown in fig. 3, 4, 9 and 10, as a preferred embodiment, the attack-proof keyboard further includes a box 8 having an opening, the lining board 3 closes the opening on the box 8, and the main control board assembly 5 is accommodated in a space formed by the lining board 3 and the box 8, so that the main control board assembly 5 and the electrical connection between the panel guide posts 21 and the guide post switches 531 are protected by the box 8.
The anti-attack keyboard further comprises a support 6 arranged between the box body 8 and the main control board assembly 5, a plurality of support guide posts 62 are arranged on the support 6, a plurality of first contacts 534 are further arranged on the control circuit, and the box body 8 presses the support guide posts 62 to enable the support guide posts 62 to be in contact with the first contacts 534. The bracket guide post 62 is electrically connected with the first contact 534, which is a second self-destruction protection measure, when a lawbreaker pries the box body 8, the electrical connection between the bracket guide post 62 and the first contact 534 is broken, and the control circuit is broken to be sensed and trigger the self-destruction function. The holder 6 is made of a hard material, such as stainless steel or hard plastic. In addition, referring to fig. 11, the first contact 534 is preferably in the shape of a cross, which is effective to increase the efficiency of contact conduction, but other contacts in the present invention may also be in the shape of a cross.
Further, as shown in fig. 5 to 7, the bracket 6 is fixed on the main control board assembly 5 (specifically, the main control board 53), a bracket guide post hole 63 is formed on the bracket 6, a bracket conductive contact 622 and a mounting ring 621 surrounding the bracket conductive contact 622 are disposed at a first end of the bracket guide post 62, the bracket guide post 62 is fixed on the bracket guide post hole 63 of the bracket 6 through the mounting ring 621, and the box body 8 presses a second end of the bracket guide post 62 to make the bracket conductive contact 622 (passing through the bracket guide post hole 63) contact the first contact 534. In this embodiment, once the case 8 is removed, the bracket conductive contact 622 is separated from the first contact 534, breaking the electrical connection between the bracket post 62 and the first contact 534.
The mounting ring 621 is preferably made of a flexible material, so that when the case 8 presses the bracket guide post 62, the bracket guide post 62 can move toward the bracket 6 to make the bracket conductive contact 622 (passing through the bracket guide post hole 63) contact with the first contact 534. In addition, the mounting ring 621 may be formed in a trumpet shape, that is, an outer diameter of one end of the mounting ring 621 connected to the second end of the stent guide post 62 is smaller than an outer diameter of the other end of the mounting ring 621, thereby increasing a contact area between the mounting ring 621 and the stent 6 to allow the stent 6 to be reliably connected to the stent guide post 62.
In addition, in a preferred embodiment, the bracket 6 and the bracket guide post 62 may be a unitary structure, for example, the bracket 6 and the bracket guide post 62 may be integrally injection molded, thereby ensuring stability and accuracy of the connection between the bracket 6 and the bracket guide post 62 to avoid erroneous self-destruction due to mechanism looseness. Wherein, the bracket 6 is sheet-shaped, and the bracket 6 can be tightly mounted on the main control board assembly 5 by a screw passing through the bracket mounting hole 64.
As shown in fig. 5, the support 6 is provided with a plurality of air discharge grooves 61, and the plurality of air discharge grooves 61 are distributed along the outer side of the mounting ring 621 and communicate the inner side and the outer side of the mounting ring 621, so that the air pressure inside the mounting ring 621 is consistent with the air pressure outside the mounting ring 621, and the mounting ring 621 is prevented from being adsorbed on the support 6 due to being pressed. Since the air pressure inside and outside the mounting ring 621 is consistent by the air vent groove 61, the mounting ring 621 can be automatically separated from the frame 6 after the case 8 is removed, thereby separating the frame conductive contact 622 from the first contact 534. The exhaust grooves 61 are cylindrical, the axes of the exhaust grooves 61 extend along the radial direction of the support guide post holes 63, and four exhaust grooves 61 distributed in an annular array are arranged around each support guide post hole 63. In addition, a part of the circumference of the stent guide hole 63 expands outward in the radial direction to form an exhaust passage (not labeled) which communicates with the exhaust groove 61, and the exhaust passage and the exhaust groove 61 together balance the pressure difference between the inside and the outside of the mounting ring 621, thereby preventing the mounting ring 621 from being adsorbed on the stent 6.
As a preferred embodiment, as shown in fig. 8, the attack-proof keyboard further includes a flexible pad 4 disposed between the lining board 3 and the main control board assembly 5, the flexible pad 4 is provided with a plurality of key seats 44 and a plurality of first pad guide posts 41, the keys 1 are mounted on the key seats 44 through key holes, and the panel guide posts 21 pass through the lining board guide post holes 31 and are connected to the guide post switches 531 through the first pad guide posts 41. By arranging the flexible backing plate 4 between the backing plate 3 and the main control plate assembly 5, vibration between the key 1 and the main control plate assembly 5 can be buffered. Wherein, the flexible backing plate 4 is preferably a silicone plate, and it should be noted that the flexible backing plate 4 may also be made of other flexible materials.
In addition, the flexible backing plate 4 is further provided with a plurality of second backing plate guide pillars 42, the second backing plate guide pillars 42 are arranged between the adjacent key bases 44, the control circuit is further provided with a plurality of second contacts 532, and the second backing plate guide pillars 42 are pre-pressed on the second contacts 532 of the main control plate assembly 5. After the lining plate 3 and the main control plate assembly 5 are assembled to the position, the second lining plate guide post 42 is electrically connected with the second contact 532, which is a third self-destruction protection measure, when a lawbreaker pries off the lining plate 3 or the main control plate assembly 5, the electrical connection between the second lining plate guide post 42 and the second contact 532 is disconnected, and the control circuit is broken to be sensed and triggers the self-destruction function.
Further, a plurality of third pad guide posts 43 are further disposed on the flexible pad 4, the third pad guide posts 43 are distributed along the edge of the flexible pad 4, the control circuit is further provided with a plurality of third contacts 533, the third pad guide posts 43 are pre-pressed on the third contacts 533 of the main control board assembly 5 by the acting force at the bottom of the mounting window of the teller machine panel, the third pad guide posts 43 and the third contacts 533 are electrically connected, which is a third self-destruction protection measure, when an illegal person detaches the anti-attack keyboard, the electrical connection between the third pad guide posts 43 and the third contacts 533 is disconnected, and the control circuit is disconnected and is sensed, and triggers the self-destruction function.
In the preferred embodiment of the present invention, the welding nails 22 are disposed on the panel 2, the welding nail holes are correspondingly disposed on the liner plate 3 and the main control plate assembly 5, and the nuts 7 are in threaded fit with the welding nails 22 to fix the panel 2, the liner plate 3, the flexible backing plate 4 and the main control plate assembly 5 together. Sensitive information in the main chip of the keyboard is protected together by quadruple self-destruction protection measures on the keyboard. Once any one of the self-destruction protection measures is destroyed, the key is lost, and lawless persons cannot steal data, so that the information security is protected, and the security of the keyboard is greatly improved.
The present invention also provides a teller machine (not shown) including a teller machine main body (not shown) and the above-mentioned attack-prevention keyboard, wherein the attack-prevention keyboard is provided on the teller machine main body. When a lawbreaker pries open the panel 2, the lining board 3 or the box body 8, at least one self-destruction protection measure is destroyed, the control circuit forms an open circuit to be sensed, and the self-destruction function is triggered, so that the keyboard main chip deletes sensitive information, and related functions are disabled, thereby preventing the lawbreaker from stealing bank data.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents made by the contents of the present specification and drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. An anti-attack keyboard comprises a plurality of keys, a panel, a main control board assembly and a lining board arranged between the panel and the main control board assembly, wherein a plurality of key holes are formed in the panel and the lining board, the keys are arranged in the key holes, and the anti-attack keyboard is characterized in that a plurality of panel guide pillars are arranged on the panel, a plurality of lining board guide pillar holes are formed in the lining board, the main control board assembly is provided with a main control board and a control circuit for realizing a self-destruction function, the control circuit is provided with a guide pillar switch, and the panel guide pillars penetrate through the lining board guide pillar holes and are electrically connected with the guide pillar switch;
the anti-attack keyboard further comprises a box body with an opening, the lining plate seals the opening in the box body, and the main control plate assembly is accommodated in a space formed by the lining plate and the box body;
the anti-attack keyboard further comprises a support arranged between the box body and the main control board assembly, a plurality of support guide posts are arranged on the support, a plurality of first contacts are further arranged on the control circuit, and the box body presses the support guide posts to enable the support guide posts to be in contact with the first contacts;
when the main control board detects that the panel guide post is electrically disconnected with the guide post switch;
and the main control board controls the keyboard main chip to delete the sensitive information and forbids the preset function.
2. The keyboard of claim 1, wherein the frame is fixed to the main control board assembly, the frame has a frame guide hole, the first end of the frame guide is provided with a frame conductive contact and a mounting ring surrounding the frame conductive contact, the frame guide is fixed to the frame guide hole by the mounting ring, and the box body presses the second end of the frame guide to contact the frame conductive contact with the first contact.
3. The attack resistant keyboard of claim 2, wherein the bracket is a unitary structure with the bracket posts.
4. The attack-resistant keyboard according to claim 3, wherein the support frame is provided with a plurality of air discharge grooves, and the air discharge grooves communicate the inner side and the outer side of the mounting ring.
5. The keyboard of any one of claims 1-4, further comprising a flexible pad disposed between the lining board and the main control board assembly, wherein the flexible pad has a plurality of key seats and a plurality of first pad guide posts, the keys are mounted on the key seats through the key holes, and the panel guide posts pass through the lining board guide post holes and are connected to the guide post switches through the first pad guide posts;
the flexible base plate is further provided with a plurality of second base plate guide columns, the second base plate guide columns are arranged between adjacent key bases, the control circuit is further provided with a plurality of second contacts, and the second base plate guide columns are pre-pressed on the second contacts of the main control plate assembly.
6. The anti-attack keyboard according to claim 5, wherein the flexible pad has a plurality of third pad guide posts thereon, the third pad guide posts are distributed along an edge of the flexible pad, the control circuit has a plurality of third contacts, and the third pad guide posts are pre-pressed on the third contacts of the main control board assembly.
7. The attack-resistant keyboard according to claim 6, wherein the flexible backing plate is a silicone plate.
8. A teller machine comprising a teller machine main body and the attack-prevention keyboard of any one of claims 1 to 7 provided on the teller machine main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610940038.6A CN106530524B (en) | 2016-10-24 | 2016-10-24 | Anti-attack keyboard and teller machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610940038.6A CN106530524B (en) | 2016-10-24 | 2016-10-24 | Anti-attack keyboard and teller machine |
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| Publication Number | Publication Date |
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| CN106530524A CN106530524A (en) | 2017-03-22 |
| CN106530524B true CN106530524B (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610940038.6A Active CN106530524B (en) | 2016-10-24 | 2016-10-24 | Anti-attack keyboard and teller machine |
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| CN (1) | CN106530524B (en) |
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| CN201489599U (en) * | 2009-07-29 | 2010-05-26 | 广州广电运通金融电子股份有限公司 | Encryption keyboard and probe detection protection structure |
| CN103942893A (en) * | 2014-01-23 | 2014-07-23 | 东方通信股份有限公司 | EPP keyboard with good secrecy performance |
| CN104537761A (en) * | 2015-01-06 | 2015-04-22 | 广州御银科技股份有限公司 | Code keyboard with multilayer safety protection mechanism |
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| CN205541099U (en) * | 2016-03-09 | 2016-08-31 | 广州广电运通金融电子股份有限公司 | Button structure, code keypad and self -service financial equipment that peep -proof was visited |
| CN206133810U (en) * | 2016-10-24 | 2017-04-26 | 深圳市证通电子股份有限公司 | Prevent attacking keyboard and automatic teller machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102779677B (en) * | 2012-06-29 | 2014-12-31 | 百富计算机技术（深圳）有限公司 | Keyboard safety protection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201489599U (en) * | 2009-07-29 | 2010-05-26 | 广州广电运通金融电子股份有限公司 | Encryption keyboard and probe detection protection structure |
| CN101697182A (en) * | 2009-09-29 | 2010-04-21 | 广州广电运通金融电子股份有限公司 | Encryption keyboard |
| CN104576140A (en) * | 2013-10-09 | 2015-04-29 | 虹堡科技股份有限公司 | Security defense design of financial transaction device |
| CN103942893A (en) * | 2014-01-23 | 2014-07-23 | 东方通信股份有限公司 | EPP keyboard with good secrecy performance |
| CN104537761A (en) * | 2015-01-06 | 2015-04-22 | 广州御银科技股份有限公司 | Code keyboard with multilayer safety protection mechanism |
| CN205541099U (en) * | 2016-03-09 | 2016-08-31 | 广州广电运通金融电子股份有限公司 | Button structure, code keypad and self -service financial equipment that peep -proof was visited |
| CN206133810U (en) * | 2016-10-24 | 2017-04-26 | 深圳市证通电子股份有限公司 | Prevent attacking keyboard and automatic teller machine |
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| CN106530524A (en) | 2017-03-22 |
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