Foreign currency exchange system and exchange machine based on digital renminbi business

Abstract

The application discloses a foreign currency exchange system and an exchange machine based on a digital renminbi service, and the technical scheme is as follows: the foreign currency exchange system based on the digital renminbi service comprises a self-service end, a digital renminbi exchange module, a password input unit, a face recognition unit and a bank server module, wherein the self-service end is provided with an operation panel; the digital renminbi exchange module is used for exchanging an account balance into foreign currency paper money from a digital renminbi operation agency; the password input unit confirms a password input by a user, and sends an instruction to the face recognition unit when the password is correct; the face recognition unit further confirms information of the user; the confirmed information is sent to the bank server module; the operation panel displays a foreign currency banknote extraction confirmation request; the bank server module receives the foreign currency banknote extraction confirmation instruction; the digital renminbi exchange module calculates an exchange rate of the current renminbi and a specified foreign currency; and the foreign currency storage module outputs the foreign currency banknote to the self-service end.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of self-service terminal equipment, in particular to a foreign currency exchange system and exchange machine based on digital renminbi business. BACKGROUND

[0002] Digital renminbi, whose letter abbreviation is temporarily designated as "e-CNY" according to international usage, is a digital form of legal tender issued by the People's Bank of China, operated by designated operating agencies and exchanged to the public, based on a broad account system, supporting bank account decoupling function, equivalent to paper money and coins, with value characteristics and legal compensation.

[0003] The digital currency in the prior art is virtual, and needs to be realized in the form of loading APP on a smart phone, which is difficult to promote for users without a smart phone or being unable to use the smart phone APP, and the bank counter may cause slow queuing, increase the bank processing personnel and the like when realizing foreign currency exchange of digital renminbi.

[0004] For users, the use of self-service equipment can save queuing time, improve consumer experience, and effectively shorten queuing time.

[0005] While the self-service equipment is put into use, the application of the camera becomes an indispensable part, and the camera is a necessary condition for the current convenient portrait recognition technology.

[0006] However, due to the interference of the direct light of the camera, the face recognition often fails, and the important information of the user is recognized on the face recognition instrument, and the camera exposed to the outside produces dust, reduces the accuracy of face verification, and also causes the face recognition to fail. SUMMARY

[0007] In view of the defects of the prior art, the present application provides a foreign currency exchange system and exchange machine based on digital renminbi business, which aims to at least alleviate the above problems to some extent.

[0008] The above technical purpose of the present application is realized by the following technical scheme:

[0009] The foreign currency exchange system based on digital renminbi business comprises:

[0010] The self-service terminal has an operation panel;

[0011] The digital renminbi exchange module is used to exchange the account balance into foreign currency paper money from the digital renminbi operating agency;

[0012] The digital RMB wallet is inserted into the self-service terminal, and is used to issue, recycle and confirm the balance of the digital RMB wallet, wherein the digital RMB wallet comprises a bank card;

[0013] The password input unit is used for a user to input the password of the digital RMB wallet;

[0014] The face recognition unit photographs the user to collect image information of the user, and compares the user with the RMB wallet holder;

[0015] The foreign currency storage module is inserted into the self-service terminal, and is used to output foreign currency, wherein the foreign currency storage module is pre-provided with a plurality of foreign currency packages of different currencies, and each foreign currency package contains at least one foreign currency of the same currency;

[0016] The transaction processing module is used to process the transaction operation of the user;

[0017] The bank server module is connected with the transaction processing module, the foreign currency storage module, the password input unit, the digital RMB wallet, the digital RMB exchange module and the face recognition unit, and is configured to confirm the password input by the password input unit, send an instruction to the face recognition unit to further confirm the information of the user, send the confirmed information to the bank server module, display the foreign currency banknote extraction confirmation request on the operation panel, calculate the exchange rate of the current RMB and the specified foreign currency by the digital RMB exchange module after the bank server module receives the foreign currency banknote extraction confirmation instruction, and output the foreign currency banknote from the self-service terminal by the foreign currency storage module.

[0018] An exchange machine comprises a face recognition unit, wherein the face recognition unit comprises:

[0019] A moving plate and a fixed plate, wherein the fixed plate is arranged on the self-service terminal, the moving plate is arranged on the top of the fixed plate, and one side of the moving plate is provided with a face recognition device;

[0020] A frame is arranged on one side of the moving plate and surrounds the face recognition device;

[0021] A plurality of baffles are arranged on one side of the frame, and the plurality of baffles shield the frame;

[0022] A wiping cloth is arranged on the baffle;

[0023] A moving component is arranged on the moving plate, and is used to move the position of the frame when the moving plate moves to a first preset position, move the position of the baffle back and forth when the moving plate moves to a second preset position, and rotate the baffle and the wiping cloth on the baffle when the frame moves to a preset position.

[0024] Preferably, the frame comprises two first rods and two second rods, the two first rods are respectively located on the left and right sides of the face recognition device, the two second rods are respectively located on the upper and lower sides of the face recognition device, one side of the moving plate is provided with a first slot connected with the first rod and a second slot connected with the second rod, the first rod is connected with the first slot through a first elastic element, the second rod is connected with the second slot through a second elastic element, one side of the first rod is connected with a first connecting rod, one end of the first connecting rod is rotatably connected with a second connecting rod, one end of the second connecting rod is slidably connected with a third connecting rod rotatably connected with the second rod, and the second connecting rod and the third connecting rod are connected through a third elastic element.

[0025] Preferably, the moving part comprises a support slidably connected to the top and bottom of the moving plate, the top and bottom of the baffle are respectively connected with a first rotating rod, a first gear is fixedly sleeved on the first rotating rod, a first rack engaged with the first gear is slidably connected to the support, the first rack is located on one side of one of the first rods, and the first rack and the first rod have a preset interval, one side of the moving plate is provided with a side opening, one side of the fixed plate is connected with a positioning plate slidably connected with the side opening, and one side of the first rod is connected with a top touch plate.

[0026] Preferably, the inside of the baffle is provided with a cavity, a second rotating rod is rotatably connected in the cavity, receiving cavities are formed in the two sides of the baffle and communicated with the cavity, part of the wiping cloth is located in the cavity and part of the wiping cloth is located in the receiving cavity, a plurality of limiting shafts are rotatably connected in the cavity, the limiting shafts limit the position of the wiping cloth to allow the wiping cloth to contact the second rotating rod, the second rotating rod penetrates through the baffle and the first rotating rod and is connected with a second gear, a second rack engaged with the second gear is slidably connected to the support, the second rack is located on the top of the first rack, and one end of the second rack is located on one side of the other first rod and has a preset interval with the first rod.

[0027] Preferably, a ratchet mechanism is arranged between the second rotating rod and the second gear.

[0028] Preferably, a support plate is slidably connected in the receiving cavity, a roller shaft is connected to one side of the support plate, part of the wiping cloth is sleeved on the roller shaft, and a fourth elastic element is connected between the support plate and the receiving cavity.

[0029] Preferably, one side of the moving plate is connected with a supporting block, a reciprocating screw rod is rotatably connected to the supporting block, a moving block connected with the supporting frame is threadedly connected to the reciprocating screw rod, a third gear meshing with the third rack is rotatably connected to one side of the moving plate, and a chain is connected between the third gear and the reciprocating screw rod.

[0030] Preferably, a supporting rod is slidably connected to the top of the moving plate, a fifth elastic member is connected between the supporting rod and the moving plate, the first rack and the second rack are slidably connected to the supporting rod, a sixth elastic member is connected between the first rack and the supporting rod and between the second rack and the supporting rod, respectively, and lifting grooves are formed in the top and the bottom of the positioning plate, respectively, and one end of the supporting rod is located in the lifting groove.

[0031] Preferably, a limiting rod is connected to one side of the supporting block, a limiting frame is slidably connected to the limiting rod, a positioning opening in which the first rotating rod is sleeved is formed in the top of the limiting frame, a rubber pad is sleeved in the positioning opening, the diameter of the rubber pad is greater than the diameter of the first rotating rod, and a seventh elastic member is connected between the limiting frame and the supporting block.

[0032] In summary, the present application has the following advantages:

[0033] By setting the moving plate, in use, the user can move the position of the moving plate, let the moving plate and the face recognition device on the moving plate move, the face recognition device gradually approaches the user's face, when the moving plate moves to the first preset position, the frame can move, away from the baffle, when the frame moves to the preset position, the baffle can be rotated, the baffle is rotated by ninety degrees, the camera on the face recognition device can be exposed, the camera can identify the user through the channel between the baffle and the baffle, the baffle with smaller thickness is set, the user can also pass through the channel to view the information displayed on the display screen of the face recognition device, and the baffle after rotating by ninety degrees is directly towards the user, for the face recognition device in a messy environment, it can also block others from watching the important information displayed on the display screen of the face recognition device, and has the effect of preventing peeping, when the moving plate moves to the second preset position, the position of the baffle can be reciprocally moved left and right, when the baffle is rotated by ninety degrees, the wiping cloth arranged on the baffle can contact the face recognition device, the display screen and the camera lens of the face recognition device can be wiped when the baffle moves, to remove the dust affecting the camera on it, at the same time, after the rotation of the plurality of baffles, the horizontal light beams around the face recognition device can be blocked, to avoid the direct irradiation of the external light source to the camera, in the initial state, the frame and the baffle arranged can form a half box covering the face recognition device, which can block the external dust, solve the problem that the face recognition fails due to the direct irradiation of the external light to the camera in the prior art, and the important information of the user can be recognized on the face recognition instrument, and for the camera exposed to the outside and accumulated dust, the accuracy of face verification is reduced when identifying, which can also cause the face recognition to fail. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is the system block schematic diagram of the application;

[0035] Figure 2 It is the password input part system block schematic diagram of the application;

[0036] Figure 3 It is the face recognition part system block schematic diagram of the application;

[0037] Figure 4 It is the self-service end structure schematic diagram of the application;

[0038] Figure 5 It is the moving plate structure schematic diagram of the application;

[0039] Figure 6 It is the baffle structure schematic diagram of the application;

[0040] Figure 7 It is Figure 6 The local structure enlarged schematic diagram of A in the figure;

[0041] Figure 8is a schematic diagram of a frame structure of the present application;

[0042] Figure 9 is a schematic diagram of a first connecting rod structure of the present application;

[0043] Figure 10 is a sectional view of a baffle structure of the present application;

[0044] Figure 11 is a schematic diagram of a positioning plate structure of the present application;

[0045] Figure 12 is a schematic diagram of a limiting rack structure of the present application;

[0046] Figure 13 is a schematic diagram of a first rotating rod structure of the present application.

[0047] Reference signs:

[0048] 100, self-service end; 101, moving plate; 102, fixed plate; 103, face recognition device; 104, frame; 105, baffle; 106, wiping cloth;

[0049] 200, first rod; 201, second rod; 202, first slot; 203, second slot; 204, first elastic member; 205, second elastic member; 206, first connecting rod; 207, second connecting rod; 208, third connecting rod; 209, third elastic member;

[0050] 300, support; 301, first rotating rod; 302, first gear; 303, first rack; 304, side opening; 305, positioning plate; 306, top touch plate;

[0051] 400, cavity; 401, second rotating rod; 402, storage cavity; 403, limiting shaft; 404, second gear; 405, second rack; 406, ratchet mechanism; 407, support plate; 408, roller; 409, fourth elastic member;

[0052] 500, support block; 501, reciprocating screw rod; 502, moving block; 503, third rack; 504, third gear; 505, chain; 506, support rod; 507, fifth elastic member; 508, sixth elastic member; 509, lifting groove; 510, limiting rod; 511, limiting rack; 512, positioning opening; 513, rubber pad; 514, seventh elastic member. DETAILED DESCRIPTION

[0053] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0054] Embodiment one

[0055] Reference Figure 1 - Figure 3 , the foreign currency exchange system based on digital renminbi business, comprising:

[0056] The self-service terminal 100 has an operation panel.

[0057] The digital renminbi exchange module is arranged in the self-service terminal 100, and is used to exchange the account balance from the digital renminbi operation agency into foreign currency banknotes.

[0058] The digital renminbi wallet is arranged in the main body, and the card insertion part of the digital renminbi wallet extends out of the self-service terminal 100, and is used to issue and recycle the digital renminbi wallet and confirm the balance of the digital renminbi wallet. The digital renminbi wallet includes a bank card.

[0059] The password input part is arranged on the self-service terminal 100, and is used for the user to input the password of the digital renminbi wallet.

[0060] The face recognition part is arranged on the self-service terminal 100, and is used to take pictures of the user to collect the image information of the user, and compare the holder of the digital renminbi wallet.

[0061] The foreign currency storage module is arranged in the self-service terminal 100, and the foreign currency output end of the foreign currency storage module extends out of the self-service terminal 100. The foreign currency storage module is prearranged with a plurality of foreign currency packages of different currencies, and each foreign currency package stores at least one foreign currency of the same currency.

[0062] The transaction processing module is used to process the transaction operation of the user.

[0063] The bank server module is connected with the transaction processing module, the foreign currency storage module, the password input part, the digital renminbi wallet, the digital renminbi exchange module and the face recognition part, and is configured to confirm the password input by the password input part, send an instruction to the face recognition part for further confirmation of the information of the user, send the confirmed information to the bank server module, display the foreign currency banknote withdrawal confirmation request on the operation panel, and calculate the exchange rate of the current renminbi and the specified foreign currency by the digital renminbi exchange module after the bank server module receives the foreign currency banknote withdrawal confirmation instruction. The foreign currency storage module outputs the foreign currency banknotes out of the self-service terminal 100.

[0064] As a further scheme of the present application, the password input part recognizes the password as incorrect, and the digital renminbi wallet exits the bank card; the password input part recognizes the password as correct, and information is transmitted to the bank server module, and the bank server module starts the face recognition part to further collect user facial information and recognize the user;

[0065] As a further scheme of the present application, the face recognition part compares the current user with the digital renminbi wallet holder's reserved facial information, and if incorrect, the digital renminbi wallet exits the bank card, and if correct, information is transmitted to the bank server module, and the bank server module starts the digital renminbi exchange module, and the operation panel displays the transaction processing module for the user to exchange foreign currency.

[0066] Embodiment Two

[0067] This embodiment is based on Embodiment One, and refers to Figure 4 Figure 13 An exchange machine, comprising a face recognition part, the face recognition part comprising:

[0068] a moving plate 101 and a fixed plate 102, the fixed plate 102 being arranged on the self-service end 100, the moving plate 101 being arranged on the top of the fixed plate 102, and one side of the moving plate 101 being provided with a face recognition device 103;

[0069] a frame 104 arranged on one side of the moving plate 101 and surrounding the face recognition device 103;

[0070] a plurality of baffles 105 arranged on one side of the frame 104, the plurality of baffles 105 shielding the frame 104;

[0071] a wiping cloth 106 arranged on the baffles 105;

[0072] a moving component arranged on the moving plate 101, for moving the position of the frame 104 when the moving plate 101 moves to a first preset position, the frame 104 moving away from the baffles 105, the moving plate 101 moving to a second preset position being able to reciprocally move the position of the baffles 105, and the frame 104 being able to rotate the baffles 105 and the wiping cloth 106 on the baffles 105 when moving to the preset position;

[0073] ​By setting the moving plate 101, in use, the user can move the position of the moving plate 101, make the moving plate 101 and the face recognition device 103 on the moving plate 101 move, the face recognition device 103 gradually approaches the user's face, when the moving plate 101 moves to the first preset position, the frame 104 can move, away from the baffle 105, when the frame 104 moves to the preset position, the baffle 105 can be rotated, the baffle 105 is rotated by ninety degrees, the camera on the face recognition device 103 can be exposed, the camera can identify the user through the channel between the baffle 105 and the baffle 105, the baffle 105 with smaller thickness is set, the user can also pass through the channel to view the information displayed on the display screen of the face recognition device 103, and the baffle 105 after being rotated by ninety degrees is directly towards the user, for the face recognition device 103 in a messy environment, it can also block others from watching the important information displayed on the display screen of the face recognition device 103, and has the effect of preventing peeping, when the moving plate 101 moves to the second preset position, the position of the baffle 105 can be reciprocally moved left and right, when the baffle 105 is rotated by ninety degrees, the wiping cloth 106 arranged on the baffle 105 can contact the face recognition device 103, the baffle 105 can wipe the display screen and the camera lens of the face recognition device 103 when moving, remove the dust on it affecting the camera, at the same time, after the multiple baffles 105 are rotated, the horizontal light beams around the face recognition device 103 can be blocked, avoiding that the external light source directly irradiates the camera, in the initial state, the frame 104 and the baffle 105 arranged can form a half box covering the face recognition device 103, which can block the external dust, solve the problem that the face recognition fails due to the direct shooting of the camera by the external light in the prior art, and the important information of the user can be recognized on the face recognition instrument, and the accuracy of face verification is reduced when the camera exposed to the outside accumulates dust, which can also cause the face recognition to fail.

[0074] As a further scheme of the present application, the frame 104 comprises two first rods 200 and two second rods 201, the two first rods 200 are respectively located on the left and right sides of the face recognition device 103, the two second rods 201 are respectively located on the upper and lower sides of the face recognition device 103, one side of the moving plate 101 is provided with a first slot 202 slidably connected with the first rod 200 and a second slot 203 slidably connected with the second rod 201, a first elastic member 204 is connected between the first rod 200 and the first slot 202, a second elastic member 205 is connected between the second rod 201 and the second slot 203, one side of the first rod 200 is connected with a first connecting rod 206, one end of the first connecting rod 206 is rotatably connected with a second connecting rod 207, one end of the second connecting rod 207 is slidably connected with a third connecting rod 208 rotatably connected with the second rod 201, a third elastic member 209 is connected between the second connecting rod 207 and the third connecting rod 208;

[0075] By setting the first rod 200 and the second rod 201, the first elastic member 204 and the second elastic member 205 are potential energy devices in the initial state, and the elastic members can be springs in the stretched state, when the position of the first rod 200 remains unchanged, the first rod 200 can limit the position of the second rod 201 through the first connecting rod 206, the second connecting rod 207 and the third connecting rod 208, when the two first rods 200 move away from each other under the force of the first elastic member 204, the second rod 201 moves synchronously under the force of the second elastic member 205, until the second connecting rod 207 is perpendicular to the first connecting rod 206 by ninety degrees, the length of the first elastic member 204 is greater than that of the second elastic member 205, and the movement distance of the first rod 200 is greater than that of the second rod 201.

[0076] As a further scheme of the application, the moving part comprises a bracket 300 slidingly connected to the top and bottom of the moving plate 101, the top and bottom of the baffle 105 are respectively connected with a first rotating rod 301, a first gear 302 is fixedly sleeved on the first rotating rod 301, a first rack 303 meshing with the first gear 302 is slidingly connected to the bracket 300, the first rack 303 is located on one side of one of the first rods 200, and the first rack 303 and the first rod 200 have a preset interval, a side opening 304 is formed on one side of the moving plate 101, a positioning plate 305 slidingly connected with the side opening 304 is connected to one side of the fixed plate 102, and one side of the first rod 200 is connected with a top touch plate 306.

[0077] By setting the positioning plate 305, the positioning plate 305 contacts the top touch plate 306 in the initial state, and the first elastic member 204 and the second elastic member 205 are in the stretched state, when the moving plate 101 moves, the top touch plate 306 gradually moves away from the positioning plate 305, when the top touch plate 306 moves away from the positioning plate 305, the first rod 200 no longer moves under the force of the first elastic member 204, after the first rod 200 and the second rod 201 move away from the baffle 105, since the length of the first elastic member 204 is greater than that of the second elastic member 205, the first rod 200 continues to move and contacts the rack and drives the rack to move at this time, at this time, the baffle 105 can be rotated, the first rod 200 and the second rod 201 are moved first, and then the baffle 105 is rotated, which can avoid the problem that the baffle 105 cannot be rotated due to position limitation.

[0078] As a further scheme of the present application, the inner part of the baffle 105 is provided with a cavity 400, a second rotating rod 401 is rotatably connected in the cavity 400, two sides of the baffle 105 are provided with storage cavities 402 in communication with the cavity 400, a part of the wiping cloth 106 is located in the cavity 400 and a part of the wiping cloth 106 is located in the storage cavity 402, a plurality of limiting shafts 403 are rotatably connected in the cavity 400, the limiting shafts 403 limit the position of the wiping cloth 106 to make the wiping cloth 106 contact the second rotating rod 401, the second rotating rod 401 passes through the baffle 105 and is connected with the first rotating rod 301 and a second gear 404, the support 300 is slidably connected with a second rack 405 engaged with the second gear 404, the second rack 405 is located on the top of the first rack 303, one end of the second rack 405 is located on one side of the other first rod 200 with a preset interval from the first rod 200;

[0079] By setting the second rack 405, when the first rod 200 moves away from the baffle 105, it can continue to move to contact the second rack 405 and drive the second rack 405 to move, the second rack 405 moves through the second gear 404 to make the second rotating rod 401 rotate, the rotation of the second rotating rod 401 can make the wiping cloth 106 rotate through friction, which can change the position of the wiping cloth 106 in the storage cavity 402, so that the part of the wiping cloth 106 that does not wipe the face recognition device 103 is located in the storage cavity 402 to wipe the face recognition instrument, and at the same time, the channel between the storage cavity 402 and the cavity 400 for the rotation of the wiping cloth 106 can be used to remove the dust on the wiping cloth 106.

[0080] As a further scheme of the present application, a ratchet mechanism 406 is arranged between the second rotating rod 401 and the second gear 404;

[0081] By setting the ratchet mechanism 406, it can be ensured that the second rotating rod 401 can only rotate in one direction, so that the part of the wiping cloth 106 that has wiped the face recognition device 103 cannot rotate back into the storage cavity 402.

[0082] As a further scheme of the present application, a support plate 407 is slidably connected in the storage cavity 402, one side of the support plate 407 is connected with a roller 408, a part of the wiping cloth 106 is sleeved on the roller 408, and a fourth elastic member 409 is connected between the support plate 407 and the storage cavity 402;

[0083] By setting the fourth elastic member 409, the fourth elastic member 409 can support the wiping cloth 106 with the roller 408, so that the wiping cloth 106 can contact the face display device without damaging the face display device when the baffle 105 rotates, and at the same time, it can also compensate for the gap between each two adjacent baffles 105 in the initial state, so as to avoid dust entering the frame 104 through the gap between each baffle 105.

[0084] As a further scheme of the present application, one side of the moving plate 101 is connected with a supporting block 500, the supporting block 500 is rotationally connected with a reciprocating screw rod 501, the reciprocating screw rod 501 is threadedly connected with a moving block 502 connected with the bracket 300, one side of the positioning plate 305 is connected with a third rack 503, one side of the moving plate 101 is rotationally connected with a third gear 504 engaged with the third rack 503, and the third gear 504 is connected with the reciprocating screw rod 501 through a chain 505;

[0085] By arranging the third gear 504, when the moving plate 101 moves, the third gear 504 moves along with the moving plate 101, and when the third gear 504 moves to a preset position, the third gear 504 can be engaged with the third gear 504, and with the continuous movement of the moving plate 101, the third gear 504 can rotate, the rotation of the third gear 504 can make the reciprocating screw rod 501 rotate through the chain 505, and the rotation of the reciprocating screw rod 501 can make the bracket 300 move through the force of the thread, so as to achieve the purpose of moving the bracket 300 left and right reciprocatingly and moving the baffle 105 through the first rotating rod 301 to wipe the face recognition device 103.

[0086] As a further scheme of the present application, the top of the moving plate 101 is slidingly connected with a supporting rod 506, the supporting rod 506 and the moving plate 101 are connected with a fifth elastic member 507, the first rack 303 and the second rack 405 are slidingly connected on the supporting rod 506, the first rack 303 and the supporting rod 506 and the second rack 405 and the supporting rod 506 are respectively connected with a sixth elastic member 508, the top and the bottom of the positioning plate 305 are respectively provided with a lifting groove 509, and one end of the supporting rod 506 is located in the lifting groove 509.

[0087] By arranging the lifting groove 509, when the moving plate 101 moves on the positioning plate 305, the supporting rod 506 moves along with the moving plate 101, the supporting rod 506 slides along the track of the lifting groove 509, after the baffle 105 rotates by ninety degrees, the supporting rod 506 is limited to move by the lifting groove 509, so that the supporting rod 506 moves away from the moving plate 101, and the movement of the supporting rod 506 can drive the first rack 303 and the second rack 405 to move, so that the first rack 303 and the second rack 405 are away from the first gear 302 and the second gear 404, thereby avoiding the problem that the baffle 105 is limited to rotate by the first rack 303 when the baffle 105 reciprocates.

[0088] As a further scheme of the present application, one side of the supporting block 500 is connected with a limiting rod 510, the limiting rod 510 is slidingly connected with a limiting frame 511, the top of the limiting frame 511 is provided with a positioning opening 512 sleeved with the first rotating rod 301, the positioning opening 512 is sleeved with a rubber pad 513, the diameter of the rubber pad 513 is larger than the diameter of the first rotating rod 301, and the limiting frame 511 is connected with the supporting block 500 through a seventh elastic member 514;

[0089] By arranging the seventh elastic member 514, when the supporting frame 300 drives the baffle 105 to move through the first rotating rod 301, the first rotating rod 301 can contact the rubber pad 513, the movement of the first rotating rod 301 can drive the limiting frame 511 to move through the positioning opening 512, and the seventh elastic member 514 is compressed or stretched to generate potential energy, at this time, the first rotating rod 301 can extrude the rubber pad 513, and the rubber pad 513 can limit the first rotating rod 301 through friction, which avoids that the baffle 105 is forced to rotate due to the friction between the wiping cloth 106 and the face recognition device 103 when the baffle 105 moves, thereby affecting the dust removal effect of the wiping cloth 106.

[0090] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A foreign currency exchange system based on a digital renminbi service, characterized in that, The application relates to a self-service terminal for digital RMB exchange, which comprises the following parts: a self-service terminal with an operation panel; a digital RMB exchange module for converting account balance into foreign currency banknotes from a digital RMB operation agency; a digital RMB wallet with a card insertion part extending from the self-service terminal, which is used for issuing and recycling the digital RMB wallet and confirming the balance of the digital RMB wallet, and the digital RMB wallet comprises a bank card; a password input part for a user to input the password of the digital RMB wallet; a face recognition part for taking pictures of the user to collect image information of the user and comparing the user with the holder of the digital RMB wallet, and the face recognition part comprises a moving plate and a fixed plate, the fixed plate is arranged on the self-service terminal, the moving plate is arranged on the top of the fixed plate, one side of the moving plate is provided with a face recognition device; a frame is arranged on one side of the moving plate and surrounds the face recognition device; a plurality of baffles are arranged on one side of the frame, and the plurality of baffles shield the frame; a wiping cloth is arranged on the baffle; a moving part is arranged on the moving plate and used for moving the position of the frame when the moving plate moves to a first preset position, the frame is away from the baffle, the position of the baffle can be reciprocated when the moving plate moves to a second preset position, and the frame can rotate the baffle and the wiping cloth on the baffle when moving to a preset position; a foreign currency storage module with a foreign currency output end extending from the self-service terminal, the foreign currency storage module is provided with a plurality of foreign currency packages of different currencies, and each foreign currency package contains at least one foreign currency of the same currency; a transaction processing module for processing the transaction operation of the user; a bank server module connected with the transaction processing module, the foreign currency storage module, the password input part, the digital RMB wallet, the digital RMB exchange module and the face recognition part, and configured to confirm the password input by the password input part, send an instruction to the face recognition part for further confirming the information of the user, send the confirmed information to the bank server module, display the foreign currency banknote extraction confirmation request on the operation panel, calculate the exchange rate of the current RMB and the specified foreign currency by the digital RMB exchange module after the bank server module receives the foreign currency banknote extraction confirmation instruction, and output the foreign currency banknote from the self-service terminal by the foreign currency storage module; the frame comprises two first rods and two second rods, the two first rods are respectively located on the left and right sides of the face recognition device, the two second rods are respectively located on the upper and lower sides of the face recognition device, one side of the moving plate is provided with a first slot connected with the first rod in sliding mode and a second slot connected with the second rod in sliding mode, a first elastic piece is connected between the first rod and the first slot, a second elastic piece is connected between the second rod and the second slot, one side of the first rod is connected with a first connecting rod, one end of the first connecting rod is rotationally connected with a second connecting rod, one end of the second connecting rod is slidably connected with a third connecting rod rotationally connected with the second rod, and a third elastic piece is connected between the second connecting rod and the third connecting rod. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The moving part comprises a support slidingly connected to the top and bottom of the moving plate, the top and bottom of the baffle plate are respectively connected with a first rotating rod, a first gear is fixedly sleeved on the first rotating rod, a first rack meshing with the first gear is slidingly connected to the support, the first rack is located on one side of one of the first rods, and a preset interval is formed between the first rack and the first rod, a side opening is formed in one side of the moving plate, a positioning plate slidingly connected with the side opening is connected to one side of the fixed plate, and a top contact plate is connected to one side of the first rod. The baffle plate is internally provided with a cavity, a second rotating rod is rotationally connected in the cavity, receiving cavities are formed in the two sides of the baffle plate and communicate with the cavity, a part of the wiping cloth is located in the cavity, and another part of the wiping cloth is located in the receiving cavity, a plurality of limiting shafts are rotationally connected in the cavity, the limiting shafts limit the position of the wiping cloth so that the wiping cloth contacts the second rotating rod, the second rotating rod penetrates through the baffle plate and the first rotating rod and is connected with a second gear, a second rack meshing with the second gear is slidingly connected to the support, the second rack is located on the top of the first rack, and one end of the second rack is located on one side of the other first rod and has a preset interval from the first rod. 2.The foreign currency exchange system based on the digital renminbi business according to claim 1, characterized in that, A ratchet mechanism is arranged between the second rotating rod and the second gear. 3.The foreign currency exchange system based on the digital renminbi business according to claim 1, characterized in that, A support plate is slidingly connected in the receiving cavity, a roller shaft is connected to one side of the support plate, a part of the wiping cloth is sleeved on the roller shaft, and a fourth elastic member is connected between the support plate and the receiving cavity.

4. The foreign currency exchange system based on a digital renminbi business according to claim 1, characterized in that, A supporting block is connected to one side of the moving plate, a reciprocating screw rod is rotationally connected to the supporting block, a moving block connected with the support is threadedly connected to the reciprocating screw rod, a third rack is connected to one side of the positioning plate, a third gear meshing with the third rack is rotationally connected to one side of the moving plate, and a chain is connected between the third gear and the reciprocating screw rod. 5.The foreign currency exchange system based on the digital renminbi business according to claim 1, wherein, A supporting rod is slidingly connected to the top of the moving plate, a fifth elastic member is connected between the supporting rod and the moving plate, the first rack and the second rack are slidingly connected to the supporting rod, sixth elastic members are respectively connected between the first rack and the supporting rod and between the second rack and the supporting rod, lifting grooves are formed in the top and bottom of the positioning plate, and one end of the supporting rod is located in the lifting grooves. 6.The foreign currency exchange system based on the digital renminbi business according to claim 4, characterized in that, One side of the supporting block is connected with a limiting rod, a limiting frame is slidingly connected to the limiting rod, a positioning opening sleeving the first rotating rod is formed in the top of the limiting frame, a rubber pad is sleeved in the positioning opening, the diameter of the rubber pad is greater than that of the first rotating rod, and a seventh elastic member is connected between the limiting frame and the supporting block.

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