Method and Terminal for Automatically Checking Certificates

Abstract

The present application provides a method and a terminal for automatically reviewing certificates. The method for automatically reviewing certificates includes the following steps: if it is verified that the certificate information conforms to the biometric information, then turn the page of the certificate; scan the page of the certificate after turning the page, obtain a page image, and perform blank page recognition on the page image to identify whether the page image is a blank page; if it is recognized that the page image is a blank page, then stamp the current page of the certificate in order of position, and return the certificate to the holder after stamping; if no blank page is recognized, then perform stamp ghosting recognition on the scanned image to determine whether there is a blank stamping area. The method and terminal for automatically reviewing certificates of the present application can automatically identify blank pages through blank page recognition, and can automatically obtain blank stamping areas through stamp ghosting recognition, making full use of the area of the blank stamping areas and improving the review efficiency; a final page recognition mechanism is newly added to ensure the efficient operation of the program.

Description

Technical Field

[0001] This application belongs to the technical field of document inspection, and more specifically, relates to a method and a terminal for automatically inspecting documents. Background Art

[0002] During travel, documents are often used, such as passports, border permits, Hong Kong and Macau permits, special administrative region border defense permits, migrant worker permits, etc. When passing through the inspection channel, each person needs to present their document to pass. During the epidemic, in order to reduce the spread of the virus, an automatic document inspection machine is used to check and stamp the documents.

[0003] When the existing automatic document inspection machine inspects a document, it can only check the validity of the document. If criminals illegally use other people's documents, it is very easy to pass through illegally.

[0004] For documents with multiple pages such as passports, not only after verifying the authenticity of the document, but also stamping is required, and in special periods, multiple stamps may be required. For example, during the epidemic, trucks need to be inspected and released simultaneously by three inspection units, namely the immigration inspection station, the customs, and the inspection and quarantine bureau, to pass through. Multiple stamps may not fit on the same page of the document, but the existing automatic document inspection machine does not support the page-turning function and cannot stamp on the next page. In addition, when stamping at different checkpoints, if there is already a stamp on the current page, but when using the automatic document inspection machine to stamp again, there may be a ghosting with the original stamp, resulting in an invalid stamp; if stamping on the next blank page again, it will waste the page of the document.

[0005] In addition, the existing automatic document inspection machine cannot identify whether the document has been turned to the last page, resulting in repeated reading by the internal scanning and recognition devices, which may cause the system to crash and affect the inspection efficiency. Summary of the Invention

[0006] The purpose of the embodiments of this application is to provide a method and a terminal for automatically inspecting documents to solve the technical problems of illegal use of other people's documents, ghosting of stamps, and low inspection efficiency existing in the existing technology during the automatic inspection of documents.

[0007] To achieve the above purpose, the technical solution adopted in this application is: providing a method for automatically inspecting documents, including the following steps:

[0008] Step S1: Receive the document of the document holder and conduct anti-counterfeiting identification on the document;

[0009] Step S2: If the anti-counterfeiting identification of the document passes, obtain the document information, and conduct biometric identification on the document holder to obtain biometric information, and verify whether the document information and the biometric information match;

[0010] Step S3: If it is verified that the certificate information and the biometric information match, then turn the page of the certificate;

[0011] Step S4: Scan the page - turned certificate, obtain a page image, and perform blank - page recognition on the page image to identify whether the page image is a blank page;

[0012] Step S5: If it is recognized that the page image is a blank page, then stamp the current page of the certificate in position order. After stamping is completed, return the certificate to the holder. If a blank page is not recognized, then perform stamp - ghosting recognition on the scanned image to determine whether there is a blank stamping area;

[0013] Step S6: If it is determined that there is the blank stamping area, then stamp in the blank stamping area. After stamping is completed, return the certificate to the holder. If it is determined that there is no blank stamping area, then detect whether the certificate has been turned to the last page;

[0014] Step S7: If it is detected that the certificate has been turned to the last page, then transmit the certificate to the staff for processing. If it is detected that the certificate has not been turned to the last page, then return to Step S3.

[0015] Preferably, in Step S4, the method for blank - page recognition includes the following steps:

[0016] Select the valid area in the page image;

[0017] Determine whether there is a stamp mark in the valid area;

[0018] If it is determined that there is no stamp mark, then it is recognized that the page image is a blank page;

[0019] If it is determined that there is a stamp mark, then a blank page is not recognized, and then perform stamp - ghosting recognition.

[0020] Preferably, the method for selecting the valid area in the page image includes the following steps:

[0021] Identify the fixed identifier in the page image;

[0022] Generate the valid area according to the fixed identifier.

[0023] Preferably, the fixed identifier is a rectangular pattern with a fixed line width, and the valid area is generated according to the area enclosed by the rectangular pattern.

[0024] Preferably, in Step S5, the method for stamping in position order includes the following steps:

[0025] Generate a two - dimensional geometric model of the valid area;

[0026] Perform simulated stamping layout on the two-dimensional geometric model.

[0027] Preferably, the method for identifying stamping ghosting includes the following steps:

[0028] Crop the area corresponding to the stamping mark in the valid area to obtain a blank stamping area;

[0029] Generate a second-order two-dimensional geometric model of the blank stamping area;

[0030] Perform simulated stamping layout on the second-order two-dimensional geometric model.

[0031] Preferably, in step S6, the method for detecting whether the certificate has been turned to the last page includes the following steps:

[0032] Detect whether the page image contains the last-page feature;

[0033] If the last-page feature is detected, it is determined that the certificate has been turned to the last page;

[0034] If the last-page feature is not detected, it is determined that the certificate has not been turned to the last page.

[0035] Preferably, the method for anti-counterfeiting identification includes:

[0036] Emit visible light and ultraviolet light onto the certificate;

[0037] Scan the certificate to obtain a page image, and perform feature recognition on the page image.

[0038] Preferably, the method for obtaining certificate information includes:

[0039] Read the electronic tag in the certificate;

[0040] Send the ID of the electronic tag to the database system to extract the identity information of the certificate holder.

[0041] Preferably, the method for biometric identification includes:

[0042] Obtain the fingerprint information of the certificate holder through a fingerprint collection device;

[0043] And / or, obtain the face information of the certificate holder through a face recognition camera;

[0044] And / or, obtain the iris information of the certificate holder through an iris camera.

[0045] Preferably, in step S1, after receiving the certificate of the certificate holder and before performing anti-counterfeiting identification on the certificate, it further includes: sterilizing the certificate with an ultraviolet lamp.

[0046] The present application also provides an automatic document inspection terminal, which includes:

[0047] A housing provided with a document inlet and outlet;

[0048] A transmission mechanism installed inside the housing and connected to the document inlet and outlet for document transmission;

[0049] A document recognition device provided on the transmission mechanism for obtaining document information;

[0050] A biometric recognition device provided on the transmission mechanism for obtaining biometric information;

[0051] A page-turning mechanism provided on the transmission mechanism for turning the pages of the document; and

[0052] A stamping mechanism provided on the transmission mechanism for stamping the document.

[0053] Preferably, an infrared sensor is provided at the document inlet and outlet, and the infrared sensor can sense the document, so that the transmission mechanism transmits the document to the biometric recognition device.

[0054] Preferably, an electronic tag sensor is provided at the document inlet and outlet, and the electronic tag sensor can sense the electronic tag in the document to obtain the electronic code of the document.

[0055] Preferably, the automatic document inspection terminal is provided with a recheck and pick-up channel and a maintenance door. The recheck and pick-up channel is provided at one end of the transmission mechanism away from the document inlet and outlet, and the recheck and pick-up channel is communicated with the maintenance door.

[0056] Preferably, the transmission mechanism includes a first roller shaft, a second roller shaft and a third roller shaft. The first roller shaft is provided between the document inlet and outlet and the document recognition device, the second roller shaft is provided between the stamping mechanism and the document recognition device, and the third roller shaft is provided between the stamping mechanism and the recheck and pick-up channel. The first roller shaft, the second roller shaft and the third roller shaft are driven by independent motors.

[0057] Preferably, the page-turning mechanism includes a page-turning roller and a page-turning swing arm. The page-turning roller and the page-turning swing arm are respectively driven by independent motors. The page-turning roller is used to roll up the current page of the document, and the page-turning swing arm is used to flip the current page of the document.

[0058] Preferably, the biometric recognition device includes a face recognition camera, an iris camera and a fingerprint collection device. The fingerprint collection device is used to obtain fingerprint information, the face recognition camera is used to obtain face information, and the iris camera is used to obtain iris information.

[0059] Preferably, the biometric recognition device further includes a touch screen, a speaker, and an alarm light. The touch screen is used for human-machine interaction, the speaker is used for voice prompts, and the alarm light is used for alarm prompts.

[0060] Preferably, the biometric recognition device further includes an industrial control computer, which is respectively connected to the face recognition camera, the iris camera, the fingerprint collection device, the touch screen, the speaker, and the alarm light.

[0061] Preferably, the document automatic access terminal further includes a single-chip microcomputer, which is respectively connected to the biometric recognition device, the transmission mechanism, the document recognition device, the page-turning mechanism, and the stamping mechanism.

[0062] The beneficial effects of the document automatic access method provided by this application are as follows: Compared with the prior art, by verifying the document information and the biometric information, it can ensure the consistency of the person and the certificate; through blank page recognition, it can automatically identify blank pages, and through stamping double-image recognition, it can automatically obtain blank stamping areas, make full use of the area of the blank stamping areas, automatically turn pages, and improve the access efficiency; a new end page recognition mechanism is added to ensure the efficient operation of the program.

[0063] The beneficial effects of the document automatic access terminal provided by this application are as follows: Compared with the prior art, by setting a document recognition device and a biometric recognition device, anti-counterfeiting identification and person-certificate consistency verification can be achieved; by setting a page-turning mechanism and cooperating with the document recognition device, the stamping position can be automatically obtained, the area of the blank stamping area can be fully utilized, the pages can be automatically turned, and the access efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0065] Figure 1 It is a schematic diagram of the method steps of the document automatic access method provided by the embodiment of the present application;

[0066] Figure 2 For Figure 1 It is a schematic diagram of the algorithm program of the document automatic access method in

[0067] Figure 3 For Figure 1 It is a schematic diagram of the method steps of the blank page recognition method in

[0068] Figure 4 Schematic diagram of method steps for the effective area in the selected page image in Figure 2 ;

[0069] Figure 5 Schematic diagram of method steps for stamping in sequential order by position in Figure 1 ;

[0070] Figure 6 Schematic diagram of the effect of simulating stamping layout in Figure 5 ;

[0071] Figure 7 Schematic diagram of method steps for stamping ghosting recognition method in Figure 1 ;

[0072] Figure 8 Schematic diagram of the effect of simulating stamping layout in Figure 7 ;

[0073] Figure 9 Schematic diagram of method steps for detecting whether the document has been turned to the last page in Figure 1 ;

[0074] Figure 10 Schematic diagram of steps for anti-counterfeiting identification method in Figure 1 ;

[0075] Figure 11 Schematic diagram of steps for the method of obtaining document information in Figure 1 ;

[0076] Figure 12 Schematic diagram of steps for biometric recognition method in Figure 1 ;

[0077] Figure 13 Schematic diagram of the three-dimensional structure of the document automatic access terminal provided by the embodiment of the present application;

[0078] Figure 14 Schematic diagram of the three-dimensional view after hiding the outer shell of the document automatic access terminal in Figure 13 ;

[0079] Figure 15 Schematic diagram of the page turning mechanism during the page turning process in Figure 14 ;

[0080] Figure 16 Schematic diagram of the three-dimensional view of the biometric recognition device in Figure 13 ;

[0081] Figure 17 Schematic diagram of the module structure connection block diagram of the document automatic access terminal in Figure 13 ; Detailed implementation manners

[0082] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clear and understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0083] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0084] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0085] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0086] Please refer to Figures 1 to 2 together, and now a method for automatically checking documents provided by an embodiment of the present application will be described. The method for automatically checking documents includes the following steps:

[0087] Step S1: Receive the document of the certificate holder and perform anti-counterfeiting identification on the document;

[0088] Step S2: If the anti-counterfeiting identification of the document passes, obtain the document information, perform biometric identification on the certificate holder to obtain biometric information, and verify whether the document information and the biometric information match;

[0089] Step S3: If it is verified that the document information and the biometric information match, turn the page of the document;

[0090] Step S4: Scan the page of the turned document to obtain a page image, and perform blank page identification on the page image to identify whether the page image is a blank page;

[0091] Step S5: If it is recognized that the page image is a blank page, then stamp the current page of the certificate in sequential order. After stamping is completed, return the certificate to the holder; if a blank page is not recognized, perform a double-stamp recognition on the scanned image to determine whether there is a blank stamping area.

[0092] Step S6: If it is determined that there is the blank stamping area, then stamp in the blank stamping area. After stamping is completed, return the certificate to the holder; if it is determined that there is no such blank stamping area, then detect whether the certificate has been turned to the last page.

[0093] Step S7: If it is detected that the certificate has been turned to the last page, then transmit the certificate to the staff for processing; if it is detected that the certificate has not been turned to the last page, then return to Step S3.

[0094] It should be noted that in Step S1, the automatic inspection method of the certificate first needs to conduct anti-counterfeiting identification to exclude fake certificates and prevent criminals from using fake certificates to commit illegal crimes.

[0095] In Step S2, if the anti-counterfeiting identification of the certificate passes, then obtain the certificate information. Certificates such as passports and bankbooks contain multiple pages, and the certificate information is usually on the first page. The certificate information includes photos, certificate codes, issuing authorities, expiration dates, etc. By verifying whether the certificate information matches the biometric information, it can ensure the consistency of the person and the certificate. On the one hand, it can prevent criminals from stealing or fraudulently using others' certificates to pass the verification, and on the other hand, it can also remind the public not to misuse the certificates. It should be added that before conducting the anti-counterfeiting identification, the holder can first open the cover to obtain the information on the first page.

[0096] In Step S3, since the stamping area in the certificate is usually on the subsequent pages, turning the pages of the certificate can find a blank stamping area.

[0097] In Step S4, the area scanned for the certificate can be set as the stamping area in the certificate. The blank page refers to the page where the stamping area on the current page is blank. Outside the stamping area on the current page, there may be printed matter such as background patterns, borders, and text.

[0098] In Step S5, stamping the current page of the certificate in sequential order can save space so that there will be more blank areas available for stamping later. Because in some special occasions, for the same passage, multiple inspection agencies need to stamp simultaneously before it can be passed. For example, during the epidemic, trucks entering and leaving the country need to be simultaneously inspected and released by the immigration inspection station, the customs, and the inspection and quarantine bureau before they can pass.

[0099] In Steps S6 and S7, it is possible to detect whether the certificate has been turned to the last page, which can avoid the occurrence of card jams or system freezes.

[0100] Compared with the prior art, the automatic document review method provided by this application can ensure the consistency of the person and the certificate by verifying the certificate information and the biometric information. Through blank page recognition, blank pages can be automatically recognized, and through stamp ghosting recognition, blank stamped areas can be automatically obtained, making full use of the area of the blank stamped areas, automatically turning pages, and improving the review efficiency. A final page recognition mechanism is added to ensure the efficient operation of the program.

[0101] In another embodiment of this application, please also refer to Figure 3 , in step S4, the method for blank page recognition includes the following steps:

[0102] Select the valid area in the page image;

[0103] Judge whether there is a stamp mark in the valid area;

[0104] If it is judged that there is no stamp mark, it is recognized that the page image is a blank page;

[0105] If it is judged that there is a stamp mark, it is not recognized as a blank page, and then stamp ghosting recognition is performed.

[0106] It can be understood that since there are printed matters such as patterns, borders, and texts as well as text page margin blank areas outside the stamped area on each page of the certificate, in order to avoid interfering with the blank page recognition, it is necessary to first select the valid area in the page image. If there is a stamp mark in the valid area, it means that this page has been stamped and is not a blank page, and it is necessary to further perform stamp ghosting recognition. If there is no stamp mark in the valid area, stamping is performed in the current page order of the certificate.

[0107] Furthermore, please also refer to Figure 4 , the method for selecting the valid area in the page image includes the following steps:

[0108] Identify the fixed identifier in the page image;

[0109] Generate the valid area according to the fixed identifier.

[0110] Preferably, please also refer to Figure 6 , the fixed identifier is a rectangular pattern with a fixed line width, and thus the valid area is generated according to the area surrounded by the rectangular pattern. Furthermore, the recognition accuracy is improved and stamping outside the valid area is avoided. Of course, the fixed identifier can also be set as a background pattern with a specific color, and the area of this background pattern is used as the valid area. In actual application, it needs to be set according to the page pattern characteristics of different certificates.

[0111] In another embodiment of this application, please also refer to Figure 5and Figure 6 In step S5, the method of stamping in position sequence includes the following steps:

[0112] Generate a two-dimensional geometric model of the valid area;

[0113] Perform simulated stamping layout on the two-dimensional geometric model.

[0114] It can be understood that by generating a two-dimensional geometric model of the valid area and performing simulated stamping layout in the two-dimensional geometric model, a way of stamping the most can be calculated. To ensure that more seals can be stamped within the limited valid area and avoid overlapping of seals. It is worth adding that when performing simulated stamping layout, the distance between adjacent two stamping marks and the area size of a single stamping mark need to be considered. Among them, Figure 7 In, the rectangular line width is the fixed identifier, and the circular dotted line is the simulated stamping position.

[0115] In another embodiment of the present application, please refer to Figure 7 and Figure 8 The method for identifying stamping ghosting includes the following steps:

[0116] Cut off the area corresponding to the stamping mark in the valid area to obtain a blank stamping area;

[0117] Generate a second-order two-dimensional geometric model of the blank stamping area;

[0118] Perform simulated stamping layout on the second-order two-dimensional geometric model.

[0119] It can be understood that by generating a second-order two-dimensional geometric model of the blank stamping area and performing simulated stamping layout in the second-order two-dimensional geometric model, a way of stamping the most can be calculated. It can not only ensure that more seals can be stamped within the limited blank stamping area, but also achieve ghosting-free stamping. Among them, Figure 8 In, the rectangular line width is the fixed identifier, the circular solid line is the stamping mark, and the circular dotted line is the simulated stamping position.

[0120] In another embodiment of the present application, please refer to Figure 9 In step S6, the method for detecting whether the certificate has been turned to the last page includes the following steps:

[0121] Detect whether the page image contains the last-page feature;

[0122] If the last-page feature is detected, it is determined that the certificate has been turned to the last page;

[0123] If the last-page feature is not detected, it is determined that the certificate has not been turned to the last page.

[0124] It is understandable that the last page feature can be a special text, pattern, etc. in the last page of the document. In some documents, the last page is a pure white pattern, so the last page feature will also be set as the last page feature with a pure white pattern. The purpose is to accurately detect whether the document has been turned to the last page through the last page feature.

[0125] In another embodiment of the present application, please refer to Figure 10 , the anti-counterfeiting identification method comprises:

[0126] emitting visible light and ultraviolet light onto the document;

[0127] The certificate is scanned to obtain a page image, and feature recognition is performed on the page image.

[0128] It is understandable that by emitting visible light and ultraviolet light to the document, the document can present a clear anti-counterfeiting image. For example, a passport can present an image of the Great Wall under the irradiation of visible light and ultraviolet light, that is, the image of the Great Wall can be used as a feature, and anti-counterfeiting identification can be achieved by obtaining the image of the Great Wall from the page image.

[0129] Furthermore, if the anti-counterfeiting identification fails, it is transmitted to the staff for review. If the staff review finds it false, the certificate will be confiscated, and the holder can even be interrogated to identify whether he is a criminal. If the staff review finds it true, the staff will handle it, which can be done by repeating step S1 again, or by manually stamping the certificate.

[0130] In another embodiment of the present application, please refer to Figure 11 , the method for obtaining certificate information includes:

[0131] Reading the electronic tag in the certificate;

[0132] The ID of the electronic tag is sent to the database system to extract the identity information of the cardholder.

[0133] It can be understood that electronic tags are also called radio frequency tags, transponders, and data carriers; they are composed of coupling elements and chips. Each tag has a unique electronic code. High-capacity electronic tags have user-writable storage space and are attached to objects to identify target objects.

[0134] Furthermore, the method for obtaining certificate information also includes OCR (Optical Character Recognition) recognition, through which the text information on the certificate can be recognized and information such as the certificate code, issuing authority, and validity period can be extracted.

[0135] In another embodiment of the present application, please refer toFigure 12 , the biometric identification method includes:

[0136] Obtaining the fingerprint information of the certificate holder through a fingerprint acquisition device;

[0137] And / or, obtaining the face information of the certificate holder through a face recognition camera;

[0138] And / or, obtaining the iris information of the certificate holder through an iris camera.

[0139] It can be understood that by comparing the certificate information with the biometric information to ensure the unity of the person and the certificate, on the one hand, it can prevent criminals from stealing or fraudulently using others' certificates to pass the verification, and on the other hand, it can also remind the public not to misuse the certificates.

[0140] In another embodiment of the present application, please refer to Figure 2 , in step S1, after receiving the certificate of the certificate holder and before performing anti-counterfeiting identification on the certificate, it further includes: sterilizing the certificate with an ultraviolet lamp.

[0141] It can be understood that during the epidemic, by sterilizing the certificate with ultraviolet light, the probability of virus transmission can be effectively reduced and the hygienic safety can be improved.

[0142] Please refer to Figures 13 to 14 , the present application also provides a certificate automatic access terminal, and the certificate automatic access terminal includes:

[0143] A housing 10, provided with a certificate entrance and exit 11;

[0144] A transmission mechanism 20, installed inside the housing 10 and connected to the certificate entrance and exit 11 for certificate transmission;

[0145] A certificate identification device 30, provided on the transmission mechanism 20 for obtaining certificate information;

[0146] A biometric identification device 40, provided on the transmission mechanism 20 for obtaining biometric information; a page-turning mechanism 50, provided on the transmission mechanism 20 for turning the pages of the certificate; and

[0147] A stamping mechanism 60, provided on the transmission mechanism 20 for stamping the certificate.

[0148] It can be understood that after the licensee puts the certificate into the certificate entrance and exit 11, the transmission mechanism 20 can transport it to the certificate identification device 30. The certificate identification device 30 can identify the certificate, obtain the certificate information and anti-counterfeiting appraisal, and obtain the stamped area in the certificate. The biometric identification device 40 can obtain the biometric information of the licensee and perform an authentication and verification by combining the obtained biometric information with the certificate information. The page-turning mechanism 50 is used to turn the pages of the certificate, cooperate with the certificate identification device 30, and obtain the stamping position so that the stamping mechanism 60 can perform ghost-free stamping.

[0149] After stamping is completed, the transmission mechanism 20 transports in the reverse direction and then exits the certificate from the certificate entrance and exit 11 to the licensee.

[0150] Compared with the prior art, the automatic certificate viewing terminal provided by the present application can achieve anti-counterfeiting appraisal and person-certificate integration verification by setting the certificate identification device 30 and the biometric identification device 40; by setting the page-turning mechanism 50 and cooperating with the certificate identification device 30, it can automatically obtain the stamping position, make full use of the area of the blank stamping area, automatically turn the pages, and improve the viewing efficiency.

[0151] In another embodiment of the present application, please refer to Figure 14 together. The certificate entrance and exit 11 is provided with an infrared sensor 111, and the infrared sensor 111 can sense the certificate, so that the transmission mechanism 20 transports the certificate to the biometric identification device 40.

[0152] It can be understood that by setting the infrared sensor 111, it can automatically sense whether there is a certificate output, so as to start the transmission mechanism 20 in the first time and transport the certificate to the inside of the terminal. The whole process is automated, practical and convenient.

[0153] In another embodiment of the present application, please refer to Figure 14 together. The certificate entrance and exit 11 is provided with an electronic tag sensor 112, and the electronic tag sensor 112 can sense the electronic tag in the certificate and obtain the electronic code of the certificate.

[0154] It can be understood that by setting the infrared sensor 111, it can automatically sense whether there is a certificate output, so as to start the transmission mechanism 20 in the first time and transport the certificate to the inside of the terminal. The whole process is automated, practical and convenient.

[0155] In another embodiment of the present application, please refer to Figure 14, the document automatic access terminal is provided with a review and pick-up channel 70 and a maintenance door 80. The review and pick-up channel 70 is arranged at one end of the transmission mechanism 20 away from the document entrance and exit 11, and the review and pick-up channel 70 communicates with the maintenance door 80.

[0156] It can be understood that if the stamping is successful, the document will exit from the document entrance and exit 11 to the document holder, facilitating the document holder to pick up the document; if the stamping is unsuccessful, the document will flow into the review and pick-up channel 70, facilitating the staff to take out the document from the maintenance door 80 for review to further verify the reason.

[0157] In another embodiment of the present application, please refer to Figure 14 together. The transmission mechanism 20 includes a first roller shaft 21, a second roller shaft 22 and a third roller shaft 23. The first roller shaft 21 is arranged between the document entrance and exit 11 and the document identification device 30. The second roller shaft 22 is arranged between the stamping mechanism 60 and the document identification device 30. The third roller shaft 23 is arranged between the stamping mechanism 60 and the review and pick-up channel 70. The first roller shaft 21, the second roller shaft 22 and the third roller shaft 23 are driven by independent motors.

[0158] It can be understood that when the first roller shaft 21 rotates, it can transport the document at the document entrance and exit 11 to the document identification device 30. When the second roller shaft 22 rotates, it can transport the document at the document identification device 30 to the stamping mechanism 60. When the third roller shaft 23 rotates, it can transport the document at the stamping mechanism 60 to the review and pick-up channel 70. Thus, the transmission of the document is realized.

[0159] In another embodiment of the present application, please refer to Figure 14 and Figure 15 together. The page-turning mechanism 50 includes a page-turning roller 51 and a page-turning swing arm 52. The page-turning roller 51 and the page-turning swing arm 52 are respectively driven by independent motors. The page-turning roller 51 is used to roll up the current page of the document, and the page-turning swing arm 52 is used to flip the current page of the document.

[0160] It can be understood that when the page-turning roller 51 rotates, the current page of the document will be rolled up, and only one page is rolled up each time. Each swing of the page-turning swing arm 52 can flip the rolled-up current page to realize the automatic page-turning function, which not only improves the efficiency but also realizes non-contact operation to avoid virus transmission.

[0161] In another embodiment of the present application, please refer to Figure 16 and Figure 17, the biometric recognition device 40 includes a face recognition camera 41, an iris camera 42, and a fingerprint collection device 43. The fingerprint collection device 43 is used to obtain fingerprint information, the face recognition camera 41 is used to obtain face information, and the iris camera 42 is used to obtain iris information.

[0162] It can be understood that the fingerprint information, face information, and iris information can be collected through the biometric recognition device 40, and the document information is compared with the biometric information to ensure the consistency of the person and the certificate. On the one hand, it can prevent criminals from stealing or fraudulently using others' documents to pass the verification, and on the other hand, it can also remind the public not to misuse the documents.

[0163] In another embodiment of the present application, please refer to Figure 16 and Figure 17 , the biometric recognition device 40 further includes a touch screen 44, a speaker 45, and an alarm light 46. The touch screen 44 is used for human-computer interaction, the speaker 45 is used for voice prompts, and the alarm light 46 is used for alarm prompts.

[0164] It can be understood that the touch screen 44 can allow the certificate holder to select a process according to the information displayed on the touch screen 44. At the same time, the speaker 45 is used for voice prompts to the certificate holder for operations. If the certificate is invalid, the alarm light 46 lights up to prompt the staff for manual verification.

[0165] In another embodiment of the present application, please refer to Figure 16 and Figure 17 , the biometric recognition device 40 further includes an industrial computer 47. The industrial computer 47 is respectively connected to the face recognition camera 41, the iris camera 42, the fingerprint collection device 43, the touch screen 44, the speaker 45, and the alarm light 46.

[0166] It can be understood that the industrial computer 47 can receive the information from the face recognition camera 41, the iris camera 42, the fingerprint collection device 43, and the touch screen 44, and send instructions to the speaker 45 and the alarm light 46.

[0167] In another embodiment of the present application, please refer to Figure 17 , the document automatic access terminal further includes a single-chip microcomputer 90. The single-chip microcomputer 90 is respectively connected to the biometric recognition device 40, the transmission mechanism 20, the document recognition device 30, the page-turning mechanism 50, and the stamping mechanism 60.

[0168] It can be understood that the single-chip microcomputer 90 receives the recognition information of the biometric recognition device 40 and the document recognition device 30, and sends instructions to the transmission mechanism 20, the page-turning mechanism 50 and the stamping mechanism 60.

[0169] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic document inspection method, characterized in that, It includes the following steps: Step S1: Receive the certificate of the license holder and conduct anti-counterfeiting identification on the certificate; Step S2: If the anti-counterfeiting identification of the certificate passes, obtain the certificate information, conduct biometric identification on the license holder to obtain biometric information, and verify whether the certificate information conforms to the biometric information; Step S3: If it is verified that the certificate information conforms to the biometric information, turn the page of the certificate; Step S4: Scan the page-turned certificate to obtain a page image, and conduct blank page identification on the page image to identify whether the page image is a blank page; The method for blank page identification includes the following steps: Select the valid area in the page image; Judge whether there is a seal imprint in the valid area; If it is judged that there is no seal imprint, it is recognized that the page image is a blank page; If it is judged that there is a seal imprint, it is not recognized as a blank page; Step S5: If it is recognized that the page image is a blank page, stamp the current page of the certificate in position order. The method for stamping in position order includes the following steps: Generate a two-dimensional geometric model of the valid area, conduct simulated stamp layout on the two-dimensional geometric model, and calculate the way with the most stamps that can be made; After stamping, return the certificate to the license holder; If no blank page is recognized, conduct stamp ghosting identification on the scanned image to judge whether there is a blank stamp area; The method for stamp ghosting identification includes the following steps: Crop the area corresponding to the seal imprint in the valid area to obtain a blank stamp area; Generate a second-order two-dimensional geometric model of the blank stamp area; Conduct simulated stamp layout on the second-order two-dimensional geometric model and calculate the way with the most stamps that can be made; Step S6: If it is judged that there is the blank stamp area, stamp in the blank stamp area. After stamping, return the certificate to the license holder; If it is judged that there is no blank stamp area, Detect whether the certificate has been turned to the last page; Step S7: If it is detected that the certificate has been turned to the last page, transmit the certificate to the staff for processing; If it is detected that the certificate has not been turned to the last page, return to Step S3.

2. The automatic document inspection method according to claim 1, characterized in that, The method for selecting the valid area in the page image includes the following steps: Identify the fixed identifier in the page image; Generate the valid area according to the fixed identifier.

3. The automatic document inspection method according to claim 2, characterized in that, The fixed identifier is a rectangular pattern with a fixed line width, and the valid area is generated according to the area surrounded by the rectangular pattern.

4. The automatic document inspection method according to any one of claims 1 to 3, characterized in that, In Step S6, the method for detecting whether the certificate has been turned to the last page includes the following steps: Detect whether the page image contains the last page feature; If the last page feature is detected, it is determined that the certificate has been turned to the last page; If the last page feature is not detected, it is determined that the certificate has not been turned to the last page.

5. The automatic document inspection method according to any one of claims 1 to 3, characterized in that, The method for anti-counterfeiting identification includes: Emit visible light and ultraviolet light onto the certificate; Scan the certificate to obtain a page image, and conduct feature identification on the page image.

6. The automatic document inspection method according to any one of claims 1 to 3, characterized in that, The method for obtaining certificate information includes: Read the electronic tag in the certificate; Send the ID of the electronic tag to the database system to extract the identity information of the licensee.

7. The method for automatically checking certificates according to any one of claims 1 to 3, characterized in that, The biometric identification method includes: Obtain the fingerprint information of the licensee through a fingerprint acquisition device; and / or, obtain the face information of the licensee through a face recognition camera; and / or, obtain the iris information of the licensee through an iris camera.

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