Automatic stamping method and system based on invisible watermarking

Abstract

The application provides a kind of automatic stamping method and system based on invisible watermark, comprising: the electronic text of automatic office unit uploading stamping file and the position information needing stamping;Automatic office unit replaces the electronic text without invisible electronic watermark in process with electronic text;Server informs automatic stamping robot unit to automatically print the electronic text in automatic office unit electronic stamping process;Automatic stamping robot extracts token information in hidden electronic watermark from paper text page by page;If each page token authentication passes, pass through OCR and image matching;Automatic stamping robot stamps information in server through the token of each page text, confirms whether each page text is stamped and where to stamp;Automatic stamping is carried out in the corresponding position of text document, and after stamping is completed, paper document is output.The application can efficiently realize the comparison of paper document and electronic document, and avoid the inconsistency between stamping file and electronic document in approval process.

Description

Technical Field

[0001] This invention relates to the technical field of automatic stamping, and more specifically, to an automatic stamping method and system based on invisible watermarks. Background Technology

[0002] Although most enterprises and institutions have implemented paperless office practices, important documents such as contracts and certificates still need to go through electronic review and stamping processes before printing out the text and stamping it. Currently, manual stamping is still the most common method for the stamping process.

[0003] However, manual stamping has several significant drawbacks: relying on manual comparison of documents makes it difficult to detect inconsistencies between paper and electronic documents; the stamping process is prone to omissions or errors; stamping operations are difficult to manage and record; and it is inefficient, time-consuming, and labor-intensive.

[0004] Patent document CN103522782B discloses an automatic stamping machine system and its control method. The system includes: an automatic stamping machine server, which provides an interface for user interaction and controls the automatic stamping machine according to user input instructions; and an automatic stamping machine, which contains a stamp and affixes it to a designated position according to control instructions sent by the server. The server and machine communicate via USB, enabling comprehensive control of the stamping process and monitoring and recording the process through text, images, and video. However, this solution still requires personnel to carefully examine the photographed images, and manual inspection has vulnerabilities and risks, failing to guarantee the security of the stamp. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the purpose of this invention is to provide an automatic stamping method and system based on invisible watermarks.

[0006] In a first aspect, according to the present invention, an automatic stamping method based on an invisible watermark is provided, the method comprising the following steps:

[0007] Step S1: Apply for a stamp for the automated office unit, and upload the electronic text of the document to be stamped and the location information where the stamp is needed;

[0008] Step S2: After receiving the electronic text processed by the authentication server, the automated office unit replaces the electronic text without the invisible electronic watermark in the process with it, ends the approval process, and notifies relevant personnel to stamp the document.

[0009] Step S3: After the electronic stamping process is completed, the server notifies the automatic stamping robot unit to automatically print the electronic text in the electronic stamping process of the automated office unit;

[0010] Step S4: The automatic stamping robot downloads and scans the document page by page from the authentication server, extracts the token information hidden in the electronic watermark from the paper text page by page, and submits the token corresponding to each page to the server for authentication.

[0011] Step S5: If the token authentication of each page is successful, then each page of the paper text is compared with the corresponding electronic text stored on the server through OCR and image matching. If the paper text and the electronic text are consistent, the stamping process is started; otherwise, the stamping process is refused.

[0012] Step S6: After entering the stamping stage, the automatic stamping robot uses the token of each page of text to stamp information in the server to confirm whether each page of text has been stamped and where the stamp is located;

[0013] Step S7: Automatically stamp the corresponding position in the text document, and output the paper document after stamping is complete.

[0014] Preferably, in step S1, after the electronic stamping process is completed, the automated office unit sends the approval result to the server and uploads the electronic text that has completed the stamping process to the server. After receiving the approval result and the electronic text, the server generates a token key that corresponds one-to-one with each page of the electronic text, processes the electronic text using electronic watermarking technology, hides the token key information in the invisible electronic watermark of each page of the electronic text, and sends the electronic text with the added invisible electronic watermark to the automated office unit or the automatic stamping unit.

[0015] Preferably, in step S2, when manual printing is not required, the server directly sends the watermark text to the stamping unit to perform the printing and stamping process.

[0016] Preferably, step S3 further includes having staff print out electronic text from the automated office unit's electronic stamping process and then placing the printed paper text into the automated stamping robot.

[0017] Preferably, the automatic stamping robot in step S3 includes a printing unit, a stamp gripping unit, a recognition unit, and a text page turning unit.

[0018] Secondly, the present invention also provides an automatic stamping system based on invisible watermarks, the system comprising the following modules:

[0019] Module M1: Automated office unit applies for stamping, uploads the electronic text of the document to be stamped and the location information of the stamping location;

[0020] Module M2: After receiving the electronic text processed by the authentication server, the automated office unit replaces the electronic text without the invisible electronic watermark in the process with it, ends the approval process, and notifies relevant personnel to stamp the document.

[0021] Module M3: After the electronic stamping process is completed, the server notifies the automatic stamping robot unit to automatically print the electronic text in the electronic stamping process of the automated office unit;

[0022] Module M4: The automatic stamping robot downloads and scans the document page by page from the authentication server, extracts the token information hidden in the electronic watermark from the paper text page by page, and submits the token corresponding to each page to the server for authentication.

[0023] Module M5: If the token authentication of each page is successful, then each page of the paper text is compared with the corresponding electronic text stored on the server through OCR and image matching. If the paper text and the electronic text are consistent, the stamping process is initiated; otherwise, the stamping process is refused.

[0024] Module M6: After entering the stamping stage, the automatic stamping robot uses the token of each page of text to stamp information in the server to confirm whether each page of text has been stamped and where the stamp is located;

[0025] Module M7: Automatically stamps the corresponding position in the text document, and outputs the paper document after stamping.

[0026] Preferably, after the electronic stamping process is completed, the automated office unit sends the approval result to the server and uploads the electronic text that has completed the stamping process to the server. After receiving the approval result and the electronic text, the server generates a token key that corresponds one-to-one with each page of the electronic text, processes the electronic text using electronic watermarking technology, hides the token key information in the invisible electronic watermark of each page of the electronic text, and sends the electronic text with the added invisible electronic watermark to the automated office unit or the automatic stamping unit.

[0027] Preferably, when manual printing is not required in module M2, the server directly sends the watermark text to the stamping unit to perform the printing and stamping process.

[0028] Preferably, module M3 also includes electronic texts printed by staff in the automated office unit's electronic stamping process, and the printed paper texts are placed into the automatic stamping robot.

[0029] Preferably, the automatic stamping robot in module M3 includes a printing unit, a stamp gripping unit, a recognition unit, and a text page turning unit.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. This invention can efficiently compare paper documents with electronic documents, avoiding inconsistencies between stamped documents and electronic documents in the approval process;

[0032] 2. This invention does not rely on manual operation, which can avoid the problems of incorrect or missing stamps; the stamping operation is recorded in the cloud in real time, which is safer and easier to manage;

[0033] 3. This invention features fully automated operation, greatly improving efficiency; by replacing manual stamping with the technical solution proposed in this invention, better security, convenience, and efficiency can be achieved. Attached Figure Description

[0034] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0035] Figure 1 This is a flowchart illustrating the principle of the present invention. Detailed Implementation

[0036] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the scope of protection of the present invention.

[0037] Example 1:

[0038] An automatic stamping method based on invisible watermarks provided by the present invention includes the following steps:

[0039] Step S1: The automated office unit applies for a stamp, uploads the electronic text of the document to be stamped and the location information to be stamped; after the electronic stamping process is approved, the automated office unit sends the approval result to the server, and uploads the electronic text that has passed the stamping process to the server; after receiving the approval result and the electronic text, the server generates a token key that corresponds one-to-one with each page of the electronic text, processes the electronic text using electronic watermarking technology, hides the token key information in the invisible electronic watermark of each page of the electronic text, and sends the electronic text with the added invisible electronic watermark to the automated office unit or the automatic stamping unit.

[0040] Step S2: After receiving the electronic text processed by the authentication server, the automated office unit replaces the electronic text without the invisible electronic watermark in the process with it, ends the approval process, and notifies relevant personnel to stamp the document; when manual printing is not required, the server directly sends the watermarked text to the stamping unit to carry out the printing and stamping process.

[0041] Step S3: After the electronic stamping process is completed, the server notifies the automatic stamping robot unit to automatically print the electronic text in the electronic stamping process of the automated office unit; it also includes the staff printing the electronic text in the electronic stamping process of the automated office unit and putting the printed paper text into the automatic stamping robot; the automatic stamping robot includes a printing unit, a stamp gripping unit, a recognition unit and a text page turning unit.

[0042] Step S4: The automatic stamping robot downloads and scans the document page by page from the authentication server, extracts the token information hidden in the electronic watermark from the paper text page by page, and submits the token corresponding to each page to the server for authentication.

[0043] Step S5: If the token authentication of each page is successful, then each page of the paper text is compared with the corresponding electronic text stored on the server through OCR and image matching. If the paper text and the electronic text are consistent, the stamping process is started; otherwise, the stamping process is refused.

[0044] Step S6: After entering the stamping stage, the automatic stamping robot uses the token of each page of text to stamp information in the server to confirm whether each page of text has been stamped and where the stamp is located;

[0045] Step S7: Automatically stamp the corresponding position in the text document, and output the paper document after stamping is complete.

[0046] The present invention also provides an automatic stamping system based on invisible watermarks. The automatic stamping system based on invisible watermarks can be implemented by executing the process steps of the automatic stamping method based on invisible watermarks. That is, those skilled in the art can understand the automatic stamping method based on invisible watermarks as a preferred embodiment of the automatic stamping system based on invisible watermarks.

[0047] Example 2:

[0048] The present invention also provides an automatic stamping system based on invisible watermarks, the system comprising the following modules:

[0049] Module M1: The automated office unit applies for a stamp, uploads the electronic text of the document to be stamped and the location information of the stamping location; after the electronic stamping process is approved, the automated office unit sends the approval result to the server, and uploads the electronic text of the stamped document to the server; after receiving the approval result and the electronic text, the server generates a token key that corresponds one-to-one with each page of the electronic text, processes the electronic text using electronic watermarking technology, hides the token key information in the invisible electronic watermark of each page of the electronic text, and sends the electronic text with the added invisible electronic watermark to the automated office unit or the automatic stamping unit.

[0050] Module M2: After receiving the electronic text processed by the authentication server, the automated office unit replaces the electronic text without the invisible electronic watermark in the process with it, ends the approval process, and notifies relevant personnel to stamp the document; when manual printing is not required, the server directly sends the watermarked text to the stamping unit to carry out the printing and stamping process.

[0051] Module M3: After the electronic stamping process is completed, the server notifies the automatic stamping robot unit to automatically print the electronic text in the electronic stamping process of the automated office unit; it also includes the staff printing the electronic text in the electronic stamping process of the automated office unit and putting the printed paper text into the automatic stamping robot; the automatic stamping robot includes a printing unit, a stamp gripping unit, a recognition unit and a text page turning unit.

[0052] Module M4: The automatic stamping robot downloads and scans the document page by page from the authentication server, extracts the token information hidden in the electronic watermark from the paper text page by page, and submits the token corresponding to each page to the server for authentication.

[0053] Module M5: If the token authentication of each page is successful, then each page of the paper text is compared with the corresponding electronic text stored on the server through OCR and image matching. If the paper text and the electronic text are consistent, the stamping process is initiated; otherwise, the stamping process is refused.

[0054] Module M6: After entering the stamping stage, the automatic stamping robot uses the token of each page of text to stamp information in the server to confirm whether each page of text has been stamped and where the stamp is located;

[0055] Module M7: Automatically stamps the corresponding position in the text document, and outputs the paper document after stamping.

[0056] Example 3:

[0057] To address the shortcomings of manual stamping, this patent proposes an automated stamping robot solution that links the electronic process with the stamping process of paper documents through technical means, effectively avoiding the problems caused by manual stamping.

[0058] The specific process is as follows:

[0059] Phase One (OA System Phase):

[0060] The automated office system requests a stamp, uploading the electronic text of the document to be stamped and the location information for the stamping. After the electronic stamping process is approved, the OA system (automated office system) sends the approval result (including the location for stamping) to the server, and simultaneously uploads the electronic text that has passed the stamping process to the server. After receiving the approval result and the electronic text, the server generates a token key that corresponds one-to-one with each page of the electronic text. It then uses electronic watermarking (invisible watermarking) technology to process the electronic text, hiding the token key information in the invisible electronic watermark on each page of the electronic text, and then sends the electronic text with the added invisible electronic watermark to the OA system or the automated stamping system.

[0061] After receiving the electronic text processed by the authentication server, the OA system replaces the electronic text without the invisible electronic watermark in the process with it, ends the approval process, and notifies relevant personnel to stamp the document. When manual printing is not required, the server directly sends the watermarked text to the stamping system to complete the printing and stamping process.

[0062] Phase Two (Automatic Stamping Robot System):

[0063] After the electronic stamping process is completed, the server notifies the automatic stamping robot system to automatically print the electronic text in the OA system's electronic stamping process; or the staff prints the electronic text in the OA system's electronic stamping process and puts the printed text (hereinafter referred to as "paper text") into the automatic stamping robot.

[0064] The automated stamping robot downloads and scans the document page by page from the authentication server, extracts the token information hidden in the electronic watermark from the paper text page by page, and submits the token corresponding to each page to the server for authentication.

[0065] If each page of token authentication is successful, then OCR and image matching technology are used to compare each page of the paper text with the corresponding electronic text stored on the server. If the paper text and the electronic text match, the stamping process is initiated; otherwise, the stamping process is rejected.

[0066] Once the stamping process begins, the automated robot uses the token of each page of text to check the stamping information on the server, confirming whether each page of text has been stamped or where the stamp is located.

[0067] Automatically stamps the corresponding positions in the text document, and then outputs the paper document after stamping is complete.

[0068] The robot includes: a printing module (or manual printing followed by placement on a workbench), a stamp gripping module, a recognition module, and a text page turning module.

[0069] Key technical features of this invention:

[0070] Online approval through an automated office system and automatic printing and stamping through an automated stamping system enable fully automated operations, improving efficiency. By combining tokens and invisible electronic watermarks, the system automatically identifies stamped documents during the stamping process, ensuring the security of the stamp. Stamping records and electronic text records are stored on a cloud server, facilitating subsequent verification and management, further enhancing security.

[0071] Those skilled in the art can understand this embodiment as a more specific description of Embodiment 1 and Embodiment 2.

[0072] Those skilled in the art will understand that, besides implementing the system and its various devices, modules, and units provided by this invention in the form of purely computer-readable program code, the same functions can be achieved entirely through logical programming of the method steps, enabling the system and its various devices, modules, and units to function in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers. Therefore, the system and its various devices, modules, and units provided by this invention can be considered a hardware component, and the devices, modules, and units included therein for implementing various functions can also be considered structures within the hardware component; alternatively, the devices, modules, and units for implementing various functions can be considered both software modules implementing the method and structures within the hardware component.

[0073] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. An automatic stamping method based on invisible watermarks, characterized in that, The method includes the following steps: Step S1: Apply for a stamp for the automated office unit, and upload the electronic text of the document to be stamped and the location information where the stamp is needed; Step S2: After receiving the electronic text processed by the authentication server, the automated office unit replaces the electronic text without the invisible electronic watermark in the process with it, ends the approval process, and notifies relevant personnel to stamp the document. Step S3: After the electronic stamping process is completed, the server notifies the automatic stamping robot unit to automatically print the electronic text in the electronic stamping process of the automated office unit; Step S4: The automatic stamping robot downloads and scans the document page by page from the authentication server, extracts the token information hidden in the electronic watermark from the paper text page by page, and submits the token corresponding to each page to the server for authentication. Step S5: If the token authentication of each page is successful, then each page of the paper text is compared with the corresponding electronic text stored on the server through OCR and image matching. If the paper text and the electronic text are consistent, the stamping process is started; otherwise, the stamping process is refused. Step S6: After entering the stamping stage, the automatic stamping robot uses the token of each page of text to stamp information in the server to confirm whether each page of text has been stamped and where the stamp is located; Step S7: Automatically stamp the corresponding position in the text document, and output the paper document after stamping is complete.

2. The automatic stamping method based on invisible watermarks according to claim 1, characterized in that, In step S1, after the electronic seal application process is completed, the automated office unit sends the approval result to the server and uploads the electronic text that has completed the seal application process to the server. After receiving the approval result and the electronic text, the server generates a token key that corresponds one-to-one with each page of the electronic text, processes the electronic text using electronic watermarking technology, hides the token key information in the invisible electronic watermark on each page of the electronic text, and sends the electronic text with the added invisible electronic watermark to the automated office unit or the automatic stamping unit.

3. The automatic stamping method based on invisible watermarks according to claim 1, characterized in that, In step S2, when manual printing is not required, the server directly sends the watermark text to the stamping unit to perform the printing and stamping process.

4. The automatic stamping method based on invisible watermarks according to claim 1, characterized in that, Step S3 also includes having staff print out electronic text from the electronic stamping process of the automated office unit and then placing the printed paper text into the automatic stamping robot.

5. The automatic stamping method based on invisible watermark according to claim 1, characterized in that, The automatic stamping robot in step S3 includes a printing unit, a stamp gripping unit, a recognition unit, and a text page turning unit.

6. An automatic stamping system based on invisible watermarks, characterized in that, The system includes the following modules: Module M1: Automated office unit applies for stamping, uploads the electronic text of the document to be stamped and the location information of the stamping location; Module M2: After receiving the electronic text processed by the authentication server, the automated office unit replaces the electronic text without the invisible electronic watermark in the process with it, ends the approval process, and notifies relevant personnel to stamp the document. Module M3: After the electronic stamping process is completed, the server notifies the automatic stamping robot unit to automatically print the electronic text in the electronic stamping process of the automated office unit; Module M4: The automatic stamping robot downloads and scans the document page by page from the authentication server, extracts the token information hidden in the electronic watermark from the paper text page by page, and submits the token corresponding to each page to the server for authentication. Module M5: If the token authentication of each page is successful, then the paper text is compared page by page with the corresponding electronic text stored on the server through OCR and image matching. If the paper text and the electronic text are consistent, the stamping process is initiated; otherwise, the stamping process is rejected. Module M6: After entering the stamping stage, the automatic stamping robot uses the token of each page of text to stamp information in the server to confirm whether each page of text has been stamped and where the stamp is located; Module M7: Automatically stamps the corresponding position in the text document, and outputs the paper document after stamping.

7. The automatic stamping system based on invisible watermarks according to claim 6, characterized in that, After the electronic seal application process is completed, the automated office unit sends the approval result to the server and uploads the electronic text that has completed the seal application process to the server. After receiving the approval result and the electronic text, the server generates a token key that corresponds one-to-one with each page of the electronic text. It then processes the electronic text using electronic watermarking technology, hiding the token key information in the invisible electronic watermark on each page of the electronic text, and sends the electronic text with the added invisible electronic watermark to the automated office unit or the automatic stamping unit.

8. The automatic stamping system based on invisible watermarks according to claim 6, characterized in that, When manual printing is not required in module M2, the server directly sends the watermark text to the stamping unit to perform the printing and stamping process.

9. The automatic stamping system based on invisible watermarks according to claim 6, characterized in that, The module M3 also includes an electronic document printed by staff in the electronic stamping process of the automated office unit, and the printed paper document is placed into the automatic stamping robot.

10. The automatic stamping system based on invisible watermarks according to claim 6, characterized in that, The automatic stamping robot in module M3 includes a printing unit, a stamp gripping unit, a recognition unit, and a text page turning unit.

Images