阅读说明：本技术 基于黑白打印文件的暗码打印方法、溯源方法及系统 (Password printing method, tracing method and system based on black and white printing file ) 是由 袁迦萱 于 2020-06-29 设计创作，主要内容包括：本发明提供的基于黑白打印文件的暗码打印方法、溯源方法及系统中,暗码打印方法包括以下步骤：获取待打印文件；识别待打印文件中至少一个空白处；获取待打印文件的文件信息；在待打印文件的至少一个空白处,根据预设的暗码规则和所述文件信息生成暗码；利用黑白打印机打印包含所述暗码的待打印文件。该方法在待打印文件上生成与文件信息对应的暗码后,可以通过黑白打印机一次完成打印,使用方便。生成的暗码能够与文件信息进行一一对应,以便后续通过暗码识别出打印文件的文件信息,提高后续打印文件溯源和检验的准确性。(In the password printing method, the tracing method and the system based on the black and white printing file, the password printing method comprises the following steps: acquiring a file to be printed; identifying at least one blank in a file to be printed; acquiring file information of a file to be printed; generating a password according to a preset password rule and the file information at least one blank of a file to be printed; and printing the file to be printed containing the password by using a black-and-white printer. The method can finish printing by a black-and-white printer once after generating the secret code corresponding to the file information on the file to be printed, and is convenient to use. The generated password can be in one-to-one correspondence with the file information, so that the file information of the printed file can be identified through the password in the following process, and the accuracy of tracing and checking the following printed file is improved.)

1. The password printing method based on the black and white printing file is characterized by comprising the following steps:

acquiring a file to be printed;

identifying at least one blank in a file to be printed;

acquiring file information of a file to be printed;

generating a password according to a preset password rule and the file information at least one blank of a file to be printed;

and printing the file to be printed containing the password by using a black-and-white printer.

2. The password printing method based on black-and-white printed document according to claim 1,

the combination is invisible to the naked eye.

3. The password printing method based on black-and-white printed document according to claim 2,

the file information comprises one or more of the following data combinations: printer brand, printer model, individual information of machines and tools and printing time; wherein the machine individual information includes a printer serial number or other unique information distinguished from other machines.

4. The password printing method based on black-and-white printed document according to claim 2,

the cipher code comprises a dot matrix which is composed of a plurality of small dots and is provided with N rows and M columns.

5. The password printing method based on black-and-white printed document according to claim 4,

the cipher rule includes identifying different file information with several rows or columns in the dot matrix.

6. A tracing method based on black and white printed files is characterized by comprising the following steps:

acquiring a to-be-traced print file; the file to be traced and printed is obtained by printing according to the secret code printing method of any one of claims 1 to 5;

identifying the password in the print file to be traced through identification equipment;

and analyzing the password by using the password rule to obtain the file information of the to-be-traced printed file, thereby realizing tracing of the to-be-traced printed file.

7. The tracing method based on black-and-white printed files as claimed in claim 6,

the identification device comprises a document inspection instrument.

8. A traceability system based on black and white printed files is characterized by comprising:

a processing device: the method comprises the steps of obtaining a print file to be traced; the file to be traced and printed is obtained by printing according to the secret code printing method of any one of claims 1 to 5; the processing equipment is also used for analyzing the password identified by the identification equipment by using the password rule to obtain the file information of the to-be-traced printed file and realize tracing of the to-be-traced printed file;

identifying the equipment: the system is used for identifying the password in the print file to be traced and sending the identified password to the processing equipment.

9. A computer-readable storage medium, characterized in that the computer storage medium stores a computer program comprising program instructions that, when executed by a processor, cause the processor to perform the method according to any of claims 1-5.

10. A chip, wherein said chip is capable of being mounted on a black and white printer;

the chip comprises a processor and a memory, the processor and the memory being interconnected, wherein the memory is used for storing a computer program comprising program instructions, the processor being configured for invoking the program instructions for performing the method according to any one of claims 1-5.

Technical Field

The invention belongs to the technical field of judicial appraisal or criminal science, and particularly relates to a password printing method, a tracing method and a system based on black and white printed files.

Background

With the rapid development of social informatization, the printer becomes an indispensable writing tool for people to work and process daily affairs. At the same time, the development of printed document inspection technology is also overwhelming.

At present, the inspection of printed documents is mainly carried out from three aspects of printed trace characteristics, printed material components and computer software. However, with the rapid development of technology in recent years, some high-precision printing trace features used in the early stage of the printer are difficult to be found or even do not exist, and meanwhile, due to the fact that the brands of printing consumables are various and the components are complex, and due to the fact that the printer is compatible with the ink box, the accuracy of printed document inspection is reduced, and inspection of the same identification and forming time is difficult to perform.

The detection of the forming time of the printed document is one of the ways of judging the authenticity of the printed document, and the detection of the forming time of the printed document is mainly carried out by three aspects of trace characteristics, ink mark forming time and paper forming time at present. However, there are many uncertain factors due to various factors affecting the inspection of the formation time of the printed document. Therefore, the printed document formation time has not been checked satisfactorily and has been poor in accuracy so far.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a password printing method, a tracing method and a system based on a black and white printing file, which improve the accuracy of tracing and checking the printing file.

In a first aspect, a method for printing a password based on a black and white print file includes the steps of:

acquiring a file to be printed;

identifying at least one blank in a file to be printed;

acquiring file information of a file to be printed;

generating a password according to a preset password rule and the file information at least one blank of a file to be printed;

and printing the file to be printed containing the password by using a black-and-white printer.

Preferably, the combination is not visible to the naked eye.

Preferably, the file information includes one or more of the following data: printer brand, printer model, individual information of machines and tools and printing time; wherein the machine individual information includes a printer serial number or other unique information distinguished from other machines.

Preferably, the combination comprises a dot matrix of N rows and M columns formed by a plurality of small dots.

Preferably, the cipher rule includes identifying different file information by rows or columns in a lattice.

In a second aspect, a tracing method based on black and white printed files includes the following steps:

acquiring a to-be-traced print file; the file to be traced and printed is obtained by printing according to the secret code printing method of the first aspect;

identifying the password in the print file to be traced through identification equipment;

and analyzing the password by using the password rule to obtain the file information of the to-be-traced printed file, thereby realizing tracing of the to-be-traced printed file.

Preferably, the identification device comprises a document inspection apparatus.

In a third aspect, a traceability system based on black and white printed files comprises:

a processing device: the method comprises the steps of obtaining a print file to be traced; the file to be traced and printed is obtained by printing according to the secret code printing method of the first aspect; the processing equipment is also used for analyzing the password identified by the identification equipment by using the password rule to obtain the file information of the to-be-traced printed file and realize tracing of the to-be-traced printed file;

identifying the equipment: the system is used for identifying the password in the print file to be traced and sending the identified password to the processing equipment.

In a fourth aspect, a computer-readable storage medium stores a computer program comprising program instructions which, when executed by a processor, cause the processor to perform the method of the first aspect.

In a fifth aspect, a chip mountable on a black and white printer;

the chip comprises a processor and a memory, the processor and the memory being interconnected, wherein the memory is configured to store a computer program, the computer program comprising program instructions, and the processor is configured to invoke the program instructions to perform the method of the first aspect.

According to the technical scheme, the password printing method, the medium and the chip based on the black-and-white printing file can complete printing at one time through the black-and-white printer after the password corresponding to the file information is generated on the file to be printed, and are convenient to use. The generated password can be in one-to-one correspondence with the file information, so that the file information of the printed file can be identified through the password in the following process, and the accuracy of tracing and checking the following printed file is improved.

According to the tracing method and system based on the black and white printed file, the cipher in the printed file to be traced is identified through the identification device, the cipher rule is utilized to analyze the cipher, and the cipher and the file information are in one-to-one correspondence, so that the file information of the printed file to be traced can be analyzed and obtained through the cipher rule, the printing time and the printer information of the printed file to be traced can be obtained, and the tracing of the printed file is realized. The obtained file information can be used for detecting the authenticity of the printed file to be traced, and the tracing and detecting accuracy of the printed file is improved.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a flowchart of a password printing method according to an embodiment of the present invention.

Fig. 2 is a flowchart of a tracing method according to a second embodiment of the present invention.

Fig. 3 is a block diagram of a traceability system according to a third embodiment of the present invention.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby. It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to a determination" or "in response to a detection". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".