CN112016129B - Engineering drawing signature authorization and printing system and printer - Google Patents
Engineering drawing signature authorization and printing system and printer Download PDFInfo
- Publication number
- CN112016129B CN112016129B CN202010513659.2A CN202010513659A CN112016129B CN 112016129 B CN112016129 B CN 112016129B CN 202010513659 A CN202010513659 A CN 202010513659A CN 112016129 B CN112016129 B CN 112016129B
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- Prior art keywords
- signature
- file
- seal
- printer
- printing
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- 238000007639 printing Methods 0.000 title claims abstract description 31
- 238000013475 authorization Methods 0.000 title claims abstract description 22
- 238000012545 processing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000007726 management method Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 238000012550 audit Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010017 direct printing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001915 proofreading effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/12—Digital output to print unit, e.g. line printer, chain printer
- G06F3/1201—Dedicated interfaces to print systems
- G06F3/1202—Dedicated interfaces to print systems specifically adapted to achieve a particular effect
- G06F3/1222—Increasing security of the print job
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/12—Digital output to print unit, e.g. line printer, chain printer
- G06F3/1201—Dedicated interfaces to print systems
- G06F3/1223—Dedicated interfaces to print systems specifically adapted to use a particular technique
- G06F3/1237—Print job management
- G06F3/1238—Secure printing, e.g. user identification, user rights for device usage, unallowed content, blanking portions or fields of a page, releasing held jobs
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/12—Digital output to print unit, e.g. line printer, chain printer
- G06F3/1201—Dedicated interfaces to print systems
- G06F3/1278—Dedicated interfaces to print systems specifically adapted to adopt a particular infrastructure
- G06F3/1285—Remote printer device, e.g. being remote from client or server
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Software Systems (AREA)
- Computer Hardware Design (AREA)
- Human Computer Interaction (AREA)
- General Health & Medical Sciences (AREA)
- Bioethics (AREA)
- Health & Medical Sciences (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
- Storage Device Security (AREA)
Abstract
The invention discloses a signature authorization and printing system and a printer for engineering drawings, wherein the signature authorization system comprises a server and a client, an administrator operates the server to send engineering drawings and signature applications to the client, and after all clients sending the signature applications reply agreements, the administrator can sign corresponding seals in the engineering drawings and generate encrypted signature files at the same time; the encrypted signature file at least comprises a blueprint file, a seal file, seal information and signature information; the printing management system receives the encrypted signature file, analyzes the encrypted signature file, rasterizes the blueprint file, the seal file and the signature information, generates a binary image which can be identified by the printer, and sends the binary image to the printer for printing. The method can trace back who signs, who takes the place of signing, which printer prints, who prints and what time prints, ensures the legality and the security of the authorization of the seal in the drawing, and greatly reduces the cost.
Description
Technical Field
The invention relates to a printing system, in particular to an engineering drawing signature authorization and printing system and a printer using the same.
Background
Current engineering drawing printing uses essentially only a single color ink, such as blue or black. When using a single color ink, the seal (registered architect seal, picture seal, design institute seal, etc.) represented in red in the original image can only be printed with blue or black ink, so that the red seal becomes blue or black, becomes a duplicate, and affects legal effectiveness. The problem can be perfectly solved by using color printing, but the printing cost is greatly increased, and the direct printing of the seal has great risks in the aspects of seal authorization and anti-counterfeiting, and under the unauthorized condition, other people or unit seal originals cannot be directly printed, and the anti-counterfeiting requirement of the originals cannot be met.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a seal authorization and printing system with authorization and anti-counterfeiting functions, and meanwhile, the printing cost is greatly reduced.
The invention adopts the following technical scheme: an engineering drawing signature authorization and printing system comprises two parts, a signature authorization system and a printing management system,
the signature authorization system comprises a server and a client, wherein an administrator operates the server to send engineering drawings and signature applications to the client, and the client sends agreements or disagreements to the server;
after all clients sending the signature application reply agreements, an administrator can sign corresponding stamps in engineering drawings and generate encrypted signature files at the same time;
the encrypted signature file at least comprises a blueprint file, a seal file, seal information and signature information;
the printing management system receives the encrypted signature file, analyzes the encrypted signature file, rasterizes the blueprint file, the seal file and the signature information, generates a binary image which can be identified by the printer, and sends the binary image to the printer for printing.
In the invention, the client is each relevant unit in the design institute, and can be an audit, an approval, a designer, a proofreading, a seal manager and a official seal manager.
In one embodiment of the invention, the server and the client communicate through an MQTnet protocol. The client receives the signing application and prompts the designer to sign as soon as possible.
Wherein the seal information mainly comprises coordinates, directions and the like. The signature information mainly includes who signed, what time signed, etc.
Further, the seal file at least comprises a signature seal, a registered architect seal, a drawing seal and a custom seal. Custom chapters may be set according to different needs. For example set as official seal.
Further, the sequence of the blueprint file, the seal information and the signature information in the encrypted signature file is random.
The encrypted signature file is an encrypted file, and the blueprint file, the seal information and the signature information in the encrypted signature file are displayed in a non-plaintext manner. The encrypted file creatively packages the blueprint file, the seal information and the signature information together and scrambles the sequence of the blueprint file, the seal information and the signature information. Information leakage and tampering can be prevented.
Further, the print management system analyzes the encrypted signature file to obtain a 32-bit bitmap file, then grays the bitmap file, sets a threshold according to the gray image, and performs dithering processing based on the threshold to obtain a binarized image.
The blueprint file of the present invention is typically a DWF file.
In one embodiment of the invention, the print management system uses the ScViewerX library to parse the DWF file. The color print management system may also parse other files such as: PDF, tiff, PNG. The print management system parses PDF, tiff, PNG the file using a Atalasoft DotImage library, where PDF is common to word processing files and image processing files, tiff is common to scanners, and PNG is common to scanners.
The PDF, tiff, PNG file can be read in a banded manner by using each function in the Atalasoft DotImage library, and a 32-bit bitmap file is obtained. The DWF file can be read by using functions in the ScViewerX library to obtain a 32-bit bitmap file.
Further, the binarized image is added with a file header which can be identified by a printer, and the file header comprises the length, the width and the resolution of the image.
Further, the binarized image file also comprises an equipment identification file, and the equipment identification file at least comprises a printer serial number, an operator and printing time. It can trace back to which printer this engineering drawing was printed by, who was printed, and when.
Further, the stamp document will be printed at the engineering drawing set position using red ink.
Further, the signature information is printed on the engineering drawing using ink that is not developed under visible light.
Further, the device identification document is printed on the engineering drawing using ink that is not developed under visible light.
In one embodiment of the invention, the signature information and the equipment identifier are printed in the blueprint of the engineering drawing by using blue-light white developing ink, the signature information and the equipment identifier can not be seen under visible light, and the signature information and the equipment identifier can be seen under blue-light white light.
The invention also provides a printer provided with the engineering drawing signature authorization and printing system.
The invention has the beneficial effects that: the invention designs an engineering drawing signature authorization and printing system, and ensures the safety of engineering drawings from the source. The method can trace back who signs, who replaces the signature, which printer prints, who prints and what time prints, guarantees the authorized legitimacy and safety of the seal in the drawing, simultaneously prints the drawing file by adopting single color such as blue or black, prints the seal file by adopting red, prints the anti-counterfeiting file by adopting visible light without developing ink, greatly saves cost, and simultaneously fully guarantees the safety of the drawing.
Detailed Description
The following detailed description of specific embodiments of the invention is provided in connection with the accompanying drawings.
The signature authorization and printing process in one embodiment of the invention is as follows:
1. the administrator adds signature chapter, registration architect chapter, picture chapter and custom chapter in the signature authorization software of the server, adds corresponding signature picture or seal picture.
2. And (3) an administrator configures engineering drawings, namely, the coordinates and the sizes of signature chapters and seals are determined in various engineering drawings.
3. And sending information to the client through the server, and informing engineering drawing related personnel to browse the engineering drawing and agree to sign (agree to seal).
4. After all relevant personnel such as an administrator agree, an encrypted signature file is generated. At this time, record who signed, what time signed. The signature file encrypted by who and when to seal is an encrypted file, comprising a blueprint file, a seal file, seal information and signature information, and the information is disordered in sequence.
5. The encrypted signature file is sent to the printing department.
6. The print authority uses the print management system to parse the encrypted signature file to generate a binary image recognizable by the printer. The binarized image includes: blueprint files, seal information and signature information, which are all binarized.
7. The blueprint of the engineering drawing is printed by single black or blue ink, and the seal file is printed in the blueprint of the engineering drawing by red ink. Signature information and device identification will be printed in the blueprint of the engineering drawing using blue-white developing ink.
8. The red seal, the blue signature, the signature information and the equipment identifier which can be seen under blue-white light can be seen in the blueprint of the engineering drawing. The signature information may represent who signed, what time signed. The device identification may reflect which printer printed, who printed, and when.
In addition, the two-dimensional code can be printed in the engineering drawing blueprint, and the engineering drawing source can be traced from the two-dimensional code. The two-dimensional code is combined with the server database to know the detailed content of the engineering drawing.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (6)
1. A signature authorization and printing system for engineering drawings is characterized by comprising two parts, a signature authorization system and a printing management system,
the signature authorization system comprises a server and a client, wherein an administrator operates the server to send engineering drawings and signature applications to the client, and the client sends agreements or disagreements to the server;
after all clients sending the signature application reply agreements, an administrator can sign corresponding stamps in engineering drawings and generate encrypted signature files at the same time;
the encrypted signature file at least comprises a blueprint file, a seal file, seal information and signature information; the printing management system receives the encrypted signature file, analyzes the encrypted signature file, rasterizes the blueprint file, the stamp file and the signature information, generates a binary image which can be identified by the printer, and sends the binary image to the printer for printing; the seal file at least comprises a signature seal, a registered architect seal, a drawing seal and a custom seal; the printing management system analyzes the encrypted signature file to obtain a 32-bit bitmap file, then grays the bitmap file, sets a threshold value according to the gray image, and performs dithering processing based on the threshold value to obtain a binarized image;
the binarized image file also comprises an equipment identification file, wherein the equipment identification file at least comprises a printer serial number, an operator and printing time; the signature information is printed on the engineering drawing using ink that does not develop under visible light.
2. The engineering drawing signature authorization and printing system according to claim 1, wherein the sequence of blueprint file, seal information and signature information in the encrypted signature file is random.
3. The system of claim 1, wherein the binary image is added with a header recognizable by a printer, the header including a length, a width, and a resolution of the image.
4. The engineering drawing signature authorization and printing system as recited in claim 1, wherein the seal document is to be printed with red ink at the engineering drawing set location.
5. The engineering drawing signature authorization and printing system of claim 1, wherein the device identification document is printed on the engineering drawing using ink that is not developed under visible light.
6. A printer provided with an engineering drawing signature authorization and printing system as claimed in any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010513659.2A CN112016129B (en) | 2020-06-08 | 2020-06-08 | Engineering drawing signature authorization and printing system and printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010513659.2A CN112016129B (en) | 2020-06-08 | 2020-06-08 | Engineering drawing signature authorization and printing system and printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112016129A CN112016129A (en) | 2020-12-01 |
| CN112016129B true CN112016129B (en) | 2024-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010513659.2A Active CN112016129B (en) | 2020-06-08 | 2020-06-08 | Engineering drawing signature authorization and printing system and printer |
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| Country | Link |
|---|---|
| CN (1) | CN112016129B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112989448B (en) * | 2021-03-22 | 2023-07-21 | 上海原构设计咨询有限公司 | Collaborative design system |
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| Publication number | Publication date |
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| CN112016129A (en) | 2020-12-01 |
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