Financial invoice anti-counterfeiting detector based on intelligent financial robot

Abstract

The application relates to a financial invoice anti-counterfeiting detector based on an intelligent financial robot, and relates to the technical field of financial equipment. The financial invoice anti-counterfeiting detector comprises a host shell, a main control box and a scanning module arranged on the inner top wall of the host shell. The host shell is internally provided with a moving seat, and the moving seat is slidably connected to the host shell through a driving module arranged on the host shell. The first air power adsorption module and the second air power adsorption module are symmetrically arranged at the front and back ends of the moving seat. The two sides of the first air power adsorption module and the second air power adsorption module are respectively provided with a pneumatic generation module and an adaptive transmission module which are in transmission cooperation with the driving module. The financial invoice anti-counterfeiting detector can make the invoice be adsorbed on the moving seat and be fully unfolded and flattened while the moving seat moves, so that automatic and rapid true-false inspection and identification can be realized. The efficiency is high. In addition, the unfolded and flattened invoice after the inspection is convenient for daily storage and management.

Description

Technical Field

[0001] This invention belongs to the field of financial equipment technology, specifically relating to a financial invoice anti-counterfeiting detector based on an intelligent financial robot. Background Technology

[0002] To date, the management of tax sources using invoices has roughly gone through two stages. The first stage was "tax control through invoices," which directly used information obtained from manual invoices for tax source management, such as the name of the buyer's company, the name of the seller's company, the name of the goods, the unit, and the quantity. As machine-printed invoices gradually replaced manual invoices, tax source management entered the second stage, "tax management through information," which uses encrypted information identified from machine-printed invoices for tax source management. In fact, the implementation of "tax management through information" mainly relies on the continuous promotion and application of tax-controlled cash registers and online invoicing machines. Due to the convenience that tax-controlled cash registers and online invoicing machines bring to tax source management, "tax management through information" has become the main method of tax source management at present.

[0003] To strengthen invoice management and prevent criminals from tampering with Chinese characters such as company names and product names to issue false invoices, the "information-based tax management" process typically uses 84-bit or 108-bit encrypted text to encrypt information such as the buyer's company name, seller's company name, product name, unit, and quantity. The encrypted information is then decrypted using a corresponding anti-counterfeiting detector, which allows for the verification of the authenticity of invoices and the management of invoice information.

[0004] Existing anti-counterfeiting detectors for financial invoices are difficult to use quickly to identify the authenticity of folded or wrinkled invoices. Staff need to unfold them and repeatedly align them with the scanning port to complete the verification, which is inefficient. In addition, folded or wrinkled invoices are difficult to store and inconvenient for daily management. Therefore, this invention provides an anti-counterfeiting detector for financial invoices based on an intelligent financial robot. Summary of the Invention

[0005] The purpose of this invention is to provide a simple and reasonably designed anti-counterfeiting detection instrument for financial invoices based on an intelligent financial robot in order to solve the above-mentioned problems.

[0006] The present invention achieves the above objectives through the following technical solutions:

[0007] A financial invoice anti-counterfeiting detector based on an intelligent financial robot includes a main unit housing, a main control box disposed inside the main unit housing, and a scanning module disposed on the top wall inside the main unit housing and electrically connected to the main control box. The main unit housing is provided with a movable base, and a driving module is provided on the main unit housing to drive the movable base to slide and engage with the main unit housing.

[0008] The movable seat is symmetrically provided with a first pneumatic adsorption module and a second pneumatic adsorption module at its front and rear ends. On both sides of the first pneumatic adsorption module and the second pneumatic adsorption module, there are pneumatic generating modules and their adaptive transmission modules that are in transmission cooperation with the driving module.

[0009] While the drive module drives the moving seat to slide, it simultaneously activates the pneumatic generation module to supply suction to the first and second pneumatic adsorption modules to adsorb financial invoices. At the same time, it drives the adaptive transmission module to make the first and second pneumatic adsorption modules move away from each other to generate tension and fully unfold the financial invoices.

[0010] As a further optimization of the present invention, the drive module includes a motor housing on the outer wall of the main unit housing and a drive shaft connected to the drive end of the motor housing. The drive shaft passes through the inside of the movable seat. The drive shaft is connected to the main transmission gear at the outer sides of both ends of the movable seat. The upper and lower sides of both ends of the movable seat are symmetrically provided with transmission racks that mesh with the main transmission gears.

[0011] As a further optimization of the present invention, a sealing block is embedded at the upper end of the movable seat corresponding to the first pneumatic adsorption module and the second pneumatic adsorption module, and the sealing block is provided with multiple buffer grooves.

[0012] As a further optimization of the present invention, the first pneumatic adsorption module includes a first connector, the outside of the first connector is provided with a plurality of first bends and the outside of the first bends is connected to a first air supply pipe, the end of the first air supply pipe is provided with a first suction nozzle that extends into a buffer groove and is flush with the upper end of the buffer groove, the second pneumatic adsorption module includes a second connector, the outside of the second connector is provided with a plurality of second bends and the outside of the second bends is connected to a second air supply pipe, the end of the second air supply pipe is provided with a second suction nozzle that extends into a buffer groove and is flush with the upper end of the buffer groove, and the length of the second air supply pipe is longer than that of the first air supply pipe.

[0013] As a further optimization of the present invention, the adaptive transmission module includes a connecting rod disposed outside the first connector or the second connector and a first transmission rod connected to the connecting rod. The drive shaft is provided with a first transmission gear that meshes with the first transmission rod. The first transmission gear is provided with symmetrical meshing teeth at its upper and lower ends. A hinge rod is hinged to one end of the first transmission rod away from the first transmission gear, and a slide block that slides in cooperation with the inner side wall of the moving seat is hinged to the other end of the hinge rod.

[0014] As a further optimization of the present invention, the pneumatic generating module includes a delivery pipe connected to a first connector or a second connector and a fan connected to the delivery pipe and disposed inside the main unit housing. A valve seat is provided outside the delivery pipe and a valve stem is inserted into the valve seat. A meshing gear is sleeved at the bottom end of the valve stem. A second transmission rod is provided outside the meshing gear. A second transmission gear is provided on the drive shaft. A rack portion corresponding to meshing with the meshing gear and the second transmission gear is provided outside the second transmission rod. A limiting seat is provided inside the movable seat that slides in cooperation with the second transmission rod.

[0015] As a further optimization of the present invention, the scanning module includes a protective cover with a receiving cavity at the front end of the protective cover, a rotating shaft is axially connected inside the receiving cavity and a pressure roller is sleeved on the rotating shaft, and a scanning camera and an infrared sensor are provided at the rear end of the protective cover.

[0016] As a further optimization of the present invention, the main control box integrates an inspection system, which includes a central processing unit. The scanning camera, infrared sensor, and drive module are all electrically connected to the general-purpose I / O port of the central processing unit. The communication port of the central processing unit is connected to a wireless transmission module and communicates with the tax platform through the wireless transmission module. The inspection system enters the tax platform through the wireless network to achieve interaction and complete the anti-counterfeiting verification of financial invoices.

[0017] As a further optimization of the present invention, the tax platform includes a main control module and a tax database electrically connected to the general I / O port of the main control module. The signal receiving end of the data processing module is communicatively connected to the wireless transmission module, and the signal transmitting end of the data processing module is electrically connected to the main control module. The main control module retrieves invoice information from the tax database and sends it to the data processing module. The data processing module compares the invoice information from the verification system and the tax database respectively and sends the comparison result to the verification system through the main control module.

[0018] The beneficial effects of this invention are as follows:

[0019] This invention drives the movable seat to slide via a drive module. On one hand, it activates the pneumatic generation module to supply suction to the first and second pneumatic adsorption modules to adsorb financial invoices. On the other hand, it drives the adaptive transmission module to move the first and second pneumatic adsorption modules away from each other to generate tension, allowing the financial invoices to fully unfold. The invoices are adsorbed on the movable seat and fully unfolded and flattened to achieve automatic and rapid verification and identification of authenticity, which is highly efficient. In addition, the unfolded and flattened invoices after verification are convenient for daily storage and management. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram provided by the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the movable base provided by the present invention;

[0022] Figure 3 This is a side view of the movable seat provided by the present invention;

[0023] Figure 4 This is a schematic diagram of the overall structure of the scanning module provided by the present invention;

[0024] Figure 5 This is a three-dimensional structural diagram of the second transmission rod provided by the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the first transmission gear provided by the present invention;

[0026] Figure 7 This is a block diagram of the inspection system of the detector provided by the present invention;

[0027] In the diagram: 1. Main unit casing; 2. Movable base; 3. Drive shaft; 4. First pneumatic adsorption module; 41. First connector; 42. First bend; 43. First air supply pipe; 44. First suction nozzle; 5. Second pneumatic adsorption module; 51. Second connector; 52. Second bend; 53. Second air supply pipe; 54. Second suction nozzle; 6. Scanning module; 61. Protective cover; 62. Receiving cavity; 63. Pressure roller; 64. Rotating shaft; 65. Scanning camera; 6. Infrared sensor; 7. Transmission rack; 8. Main transmission gear; 9. Motor housing; 10. First transmission gear; 11. First transmission rod; 12. Hinge rod; 13. Slide; 14. Connecting rod; 15. Fan; 16. Conveying pipe; 17. Valve seat; 18. Valve stem; 19. Meshing gear; 20. Second transmission rod; 21. Second transmission gear; 22. Limiting seat; 23. Sealing block; 24. Buffer groove; 25. Rack section; 26. Meshing section. Detailed Implementation

[0028] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0029] Example 1

[0030] Reference manual attached Figure 1-2This embodiment provides a financial invoice anti-counterfeiting detector based on an intelligent financial robot, including a main unit housing 1, a main control box disposed inside the main unit housing 1, and a scanning module 6 disposed on the top wall inside the main unit housing 1 and electrically connected to the main control box. The main unit housing 1 is provided with a movable base 2, and a driving module is provided on the main unit housing 1 to drive the movable base 2 to slide and cooperate with the main unit housing 1.

[0031] The movable seat 2 is symmetrically provided with a first pneumatic adsorption module 4 and a second pneumatic adsorption module 5 at its front and rear ends. The first pneumatic adsorption module 4 and the second pneumatic adsorption module 5 are respectively provided with a pneumatic generating module and an adaptive transmission module on both sides of the driving module.

[0032] While the drive module drives the movable seat 2 to slide, it simultaneously activates the pneumatic generation module to supply the first pneumatic adsorption module 4 and the second pneumatic adsorption module 5 with suction to adsorb financial invoices. At the same time, it drives the adaptive transmission module to make the first pneumatic adsorption module 4 and the second pneumatic adsorption module 5 move away from each other to generate tension so that the financial invoices can be fully unfolded.

[0033] In this invention, the drive module includes a motor housing 9 disposed on the outer wall of the main housing 1 and a drive shaft 3 connected to the drive end of the motor housing 9. The drive shaft 3 passes through the interior of the movable base 2. The drive shaft 3 is externally connected to the main drive gears 8 at both ends of the movable base 2. The upper and lower sides of both ends of the movable base 2 are symmetrically provided with transmission racks 7 that mesh with the main drive gears 8.

[0034] Specifically, the motor housing 9 controls the drive shaft 3 to rotate counterclockwise at a constant speed, causing the main drive gears 8, which are respectively shafted to the outer sides of the moving seat 2, to rotate. The number of teeth on the lower end of the main drive gear 8 is the same as the number of teeth on the transmission rack 7. While the drive shaft 3 drives the main drive gear 8 to rotate counterclockwise, the main drive gear 8 and the transmission rack 7 on the lower side of the moving seat 2 generate mutual transmission to push the front end of the moving seat 2 out of the main housing 1. As the drive shaft 3 rotates, the teeth of the main drive gear 8 rotate to generate mutual transmission with the transmission rack 7 on the upper side of the moving seat 2 to pull the moving seat 2 back to the initial position, thereby realizing the reciprocating extension and retraction of the moving seat 2 inside the main housing 1.

[0035] Example 2

[0036] Reference manual attached Figure 3 and 5 -6. Based on Embodiment 1, a sealing block 23 is embedded at the upper end of the movable seat 2 corresponding to the first pneumatic adsorption module 4 and the second pneumatic adsorption module 5, and a plurality of buffer grooves 24 are provided on the sealing block 23.

[0037] The first pneumatic adsorption module 4 includes a first connector 41. The first connector 41 has multiple first bends 42 on its exterior, and a first air supply pipe 43 is connected to the exterior of each bend 42. The end of each first air supply pipe 43 has a first suction nozzle 44 that extends into a buffer groove 24 and is flush with the upper end of the buffer groove 24. The second pneumatic adsorption module 5 includes a second connector 51. The second connector 51 has multiple second bends 52 on its exterior, and a second air supply pipe 53 is connected to the exterior of each second bend 52. The end of each second air supply pipe 53 extends into a buffer groove. The second suction nozzle 54 is flush with the upper end of the buffer groove 24. The length of the second air supply pipe 53 is longer than that of the first air supply pipe 43. The purpose is twofold: first, to enable the adaptive transmission module connected to the first pneumatic adsorption module 4 and the second pneumatic adsorption module 5 to be located at both ends of the drive shaft 3 and generate a linkage effect simultaneously; second, to enable the first pneumatic adsorption module 4 to generate suction first than the second pneumatic adsorption module 5, so that the front end of the invoice is adsorbed first, so that when the moving seat 2 is pulled back, the scanning module 6 will not lift the invoice on the moving seat 2, ensuring that it is stably placed on the moving seat 2.

[0038] The pneumatic generating module includes a delivery pipe 16 connected to a first connector 41 or a second connector 51 and a fan 15 connected to the delivery pipe 16 and located inside the main housing 1. A valve seat 17 is provided outside the delivery pipe 16 and a valve stem 18 is inserted into the valve seat 17. A meshing gear 19 is sleeved at the bottom end of the valve stem 18. A second transmission rod 20 is provided outside the meshing gear 19. A second transmission gear 21 is provided on the drive shaft 3. A rack portion 25 is provided outside the second transmission rod 20, which meshes with the meshing gear 19 and the second transmission gear 21. A limiting seat 22 is provided inside the movable seat 2, which slides with the second transmission rod 20.

[0039] While the drive module drives the movable seat 2 to slide, it activates the pneumatic module to supply suction to the first pneumatic adsorption module 4 and the second pneumatic adsorption module 5 to adsorb financial invoices. Specifically, when the drive module drives the movable seat 2 to extend out of the main unit housing 1, the drive shaft 3 rotates, causing the external second transmission gear 21 to rotate. The teeth on the second transmission gear 21 contact the rack portion 25 on the second transmission rod 20, causing the end of the second transmission rod 20 away from the valve stem 18 to displace, resulting in the rack portion 25 at the other end of the second transmission rod 20 contacting the lower end of the valve stem 18. After the meshing gear 19 rotates, it drives the valve stem 18 to rotate, and the valve seat 17 is opened. The delivery pipe 16 is connected to the fan 15. The suction force generated by the fan 15 enters the first connector 41 or the second connector 51 through the delivery pipe 16, causing the multiple first suction nozzles 44 connected to the outside of the first connector 41 through multiple first bends 42 and the first air supply pipe 43, and the multiple second suction nozzles 54 connected to the outside of the second connector 51 through multiple second bends 52 and the second air supply pipe 53 to generate suction force, so that the invoice placed on the movable seat 2 can be stably adsorbed on it.

[0040] To ensure that the wrinkled invoice placed on the movable seat 2 can be laid flat, the drive module drives the movable seat 2 to slide while simultaneously driving the adaptive transmission module to cause the first pneumatic adsorption module 4 and the second pneumatic adsorption module 5 to move away from each other, generating tension to fully unfold the financial invoice.

[0041] The adaptive transmission module includes a connecting rod 14 located outside the first connector 41 or the second connector 51 and a first transmission rod 11 connected to the connecting rod 14. The drive shaft 3 is provided with a first transmission gear 10 that meshes with the first transmission rod 11. The first transmission gear 10 has symmetrically provided meshing teeth 26 at its upper and lower ends. The end of the first transmission rod 11 away from the first transmission gear 10 is hinged to a hinge rod 12, and the other end of the hinge rod 12 is hinged to a slide block 13 that slides in cooperation with the inner side wall of the movable seat 2.

[0042] Specifically, when the drive module drives the moving seat 2 back into the main housing 1, the drive shaft 3 rotates, causing the first transmission gear 10 outside it to rotate. The teeth on the first transmission rod 11, which is connected to the outside of the first connector 41 or the second connector 51 through the connecting rod 14, mesh with the first transmission gear 10 when it rotates counterclockwise. This causes the first transmission rod 11 to move away from the first transmission gear 10, which in turn causes the entire first pneumatic adsorption module 4 and the second pneumatic adsorption module 5 to move away from the first transmission gear 10. At this time, the pneumatic generating module is activated to supply suction to the first pneumatic adsorption module 4 and the second pneumatic adsorption module 5 to adsorb financial invoices. As a result, when the first pneumatic adsorption module 4 and the second pneumatic adsorption module 5 move away from each other, the wrinkled invoices can be pulled out.

[0043] Additionally, please refer to the attached instruction manual. Figure 4 In this invention, the scanning module 6 includes a protective cover 61 and a receiving cavity 62 is provided at the front end of the protective cover 61. A rotating shaft 64 is axially connected inside the receiving cavity 62 and a pressure roller 63 is sleeved on the rotating shaft 64. A scanning camera 65 and an infrared sensor 66 are provided at the rear end of the protective cover 61.

[0044] Specifically, during the process of the drive module driving the movable seat 2 back to the main housing 1, the pressure roller 63 located in the front cavity 62 of the protective cover 61 first contacts the financial invoice located on the movable seat 2 that is being pressed by the first pneumatic adsorption module 4 and the second pneumatic adsorption module 5 and rolls it to further smooth the financial invoice. Subsequently, the scanning camera 65 and infrared sensor 66 located at the rear end of the protective cover 61 sense the invoice and start scanning, thereby ensuring the speed and accuracy of the scanning process.

[0045] Example 3

[0046] Reference manual attached Figure 7 Based on Embodiment 1, the main control box integrates an inspection system. The inspection system includes a central processing unit, which consists of a PIC18FK22 microcontroller chip and its peripheral oscillation circuit. The scanning camera 65, infrared sensor 66, and drive module are all electrically connected to the general-purpose I / O port of the central processing unit. The scanning camera 65 and infrared sensor 66 are both common models available on the market. The communication port of the central processing unit is connected to a wireless transmission module, and the system communicates with the tax platform through the wireless transmission module. The inspection system enters the tax platform through the wireless network to interact and complete the anti-counterfeiting verification of financial invoices. The wireless transmission module can be WiFi or 5G communication.

[0047] The tax platform includes a main control module and a tax database electrically connected to the general I / O port of the main control module. The main control module consists of a PIC18FK22 microcontroller chip and its peripheral oscillation circuit. The signal receiving end of the data processing module is communicatively connected to the wireless transmission module, and the signal transmitting end of the data processing module is electrically connected to the main control module. The main control module retrieves invoice information from the tax database and sends it to the data processing module. The data processing module compares the invoice information from the verification system and the tax database respectively and sends the comparison result to the verification system through the main control module.

[0048] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A financial invoice anti-counterfeiting detector based on an intelligent financial robot, comprising a main unit housing (1), a main control box disposed within the main unit housing (1), and a scanning module (6) disposed on the inner top wall of the main unit housing (1) and electrically connected to the main control box, characterized in that: The main unit housing (1) is provided with a movable base (2), and a drive module is provided on the main unit housing (1) to drive the movable base (2) to slide and cooperate with the main unit housing (1); The movable seat (2) is symmetrically provided with a first pneumatic adsorption module (4) and a second pneumatic adsorption module (5) at its front and rear ends. The first pneumatic adsorption module (4) and the second pneumatic adsorption module (5) are respectively provided with a pneumatic generating module and an adaptive transmission module on both sides of the drive module. The drive module includes a motor housing (9) located on the outer wall of the main body housing (1) and a drive shaft (3) connected to the drive end of the motor housing (9). The drive shaft (3) passes through the inside of the movable seat (2). The drive shaft (3) is connected to the main drive gear (8) at the outer ends of both ends of the movable seat (2). The upper and lower sides of both ends of the movable seat (2) are symmetrically provided with transmission racks (7) that mesh with the main drive gear (8). The upper end of the movable seat (2) is fitted with a sealing block (23) corresponding to the first pneumatic adsorption module (4) and the second pneumatic adsorption module (5), and the sealing block (23) is provided with multiple buffer grooves (24). The first pneumatic adsorption module (4) includes a first connector (41), the outside of the first connector (41) is provided with a plurality of first bends (42) and the outside of the first bends (42) is connected to a first air supply pipe (43), the end of the first air supply pipe (43) is provided with a first suction nozzle (44) that extends into the buffer groove (24) and is level with the upper end of the buffer groove (24), the second pneumatic adsorption module (5) includes a second connector (51), the outside of the second connector (51) is provided with a plurality of second bends (52) and the outside of the second bends (52) is connected to a second air supply pipe (53), the end of the second air supply pipe (53) is provided with a second suction nozzle (54) that extends into the buffer groove (24) and is level with the upper end of the buffer groove (24), the length of the second air supply pipe (53) is longer than that of the first air supply pipe (43); The adaptive transmission module includes a connecting rod (14) located outside the first connector (41) or the second connector (51) and a first transmission rod (11) connected to the connecting rod (14). The drive shaft (3) is provided with a first transmission gear (10) that meshes with the first transmission rod (11). The first transmission gear (10) is provided with symmetrical meshing teeth (26) at its upper and lower ends. The first transmission rod (11) is hinged to a hinge rod (12) at one end away from the first transmission gear (10), and the other end of the hinge rod (12) is hinged to a slide (13) that slides in cooperation with the inner wall of the moving seat (2). The pneumatic generating module includes a delivery pipe (16) connected to a first connector (41) or a second connector (51) and a fan (15) connected to the delivery pipe (16) and located inside the main housing (1). The delivery pipe (16) is provided with a valve seat (17) and a valve stem (18) is inserted into the valve seat (17). The bottom end of the valve stem (18) is fitted with a meshing gear (19). The meshing gear (19) is provided with a second transmission rod (20). The drive shaft (3) is provided with a second transmission gear (21). The second transmission rod (20) is provided with a rack portion (25) that meshes with the meshing gear (19) and the second transmission gear (21). The movable seat (2) is provided with a limiting seat (22) that slides with the second transmission rod (20). While the drive module drives the moving seat (2) to slide, it opens the pneumatic generation module to supply the first pneumatic adsorption module (4) and the second pneumatic adsorption module (5) to adsorb the financial invoice. At the same time, it drives the adaptive transmission module to make the first pneumatic adsorption module (4) and the second pneumatic adsorption module (5) move away from each other to generate tension so that the financial invoice can be fully unfolded.

2. The financial invoice anti-counterfeiting detector based on an intelligent financial robot according to claim 1, characterized in that: The scanning module (6) includes a protective cover (61) and a receiving cavity (62) is provided at the front end of the protective cover (61). A rotating shaft (64) is axially connected inside the receiving cavity (62) and a pressure roller (63) is sleeved on the rotating shaft (64). A scanning camera (65) and an infrared sensor (66) are provided at the rear end of the protective cover (61).

3. The financial invoice anti-counterfeiting detector based on an intelligent financial robot according to claim 2, characterized in that: The main control box integrates an inspection system, which includes a central processing unit. The scanning camera (65), infrared sensor (66), and drive module are all electrically connected to the general-purpose I / O port of the central processing unit. The communication port of the central processing unit is connected to a wireless transmission module and communicates with the tax platform through the wireless transmission module. The inspection system enters the tax platform through the wireless network to achieve interaction in order to complete the anti-counterfeiting verification of financial invoices.

4. The financial invoice anti-counterfeiting detector based on an intelligent financial robot according to claim 3, characterized in that: The tax platform includes a main control module and a tax database electrically connected to the general I / O port of the main control module. The signal receiving end of the data processing module is communicatively connected to the wireless transmission module, and the signal transmitting end of the data processing module is electrically connected to the main control module. The main control module retrieves invoice information from the tax database and sends it to the data processing module. The data processing module compares the invoice information from the verification system and the tax database respectively and sends the comparison result to the verification system through the main control module.

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