CN112257284A - Design knowledge tracing method and system in CAD system based on block chain - Google Patents
Design knowledge tracing method and system in CAD system based on block chain Download PDFInfo
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Abstract
The invention relates to the field of digital design, and provides a design knowledge tracing method and a system in a CAD system based on a block chain, wherein the method comprises the steps of collecting design knowledge node data, user information data and equipment information data in a movable window in the CAD system, and storing the data in a local storage unit; verifying the knowledge node data, calculating a Hash value of the knowledge node data, the user information data and the equipment information data in the local storage unit, writing the Hash value and the backup address into a block chain private chain, and anchoring the block chain private chain module to a block chain public chain module; the invention also provides a system for implementing the method, which prevents the design knowledge data from generating disordered structures, parameters and formats of data such as texts after being modified for many times and can not effectively trace the design knowledge, thereby effectively supporting the development of new design activities in the CAD system and improving the digital design efficiency of products.
Description
Technical Field
The invention relates to the field of digital design, in particular to a block chain-based design knowledge tracing method and system in a CAD system.
Background
In the digital Design process, a Computer Aided Design (CAD) system is usually adopted, and Design workers are helped to carry out Design work through a Computer and graphic equipment thereof, so that the efficiency is high, the remote collaborative Design is facilitated, in the digital Design process of products, the Computer can carry out a large amount of calculation, analysis and comparison on different schemes, numerous various Design information is generated, whether digital, literal or graphic, and the CAD system can be used for a series of subsequent Design and reuse, and is widely applied to the fields of electromechanical products, buildings, traffic and the like.
CN 106471503B discloses a method for product data management, the method being performed by a data processing system and comprising: receiving a CAD model comprising a plurality of entities each having an underlying geometry; if the first entity to be processed is not an offset pair already stored in the cache, identifying a first chain of offset pairs corresponding to a first entity of the plurality of entities, including identifying a first partner entity that is part of the same offset pair; determining whether the first offset pair chain is a strong chain, and marking the first entity as part of the offset pair when the first offset pair chain is a strong chain; and storing a CAD model comprising the marked first entity; wherein the first offset pair chain is determined to be a strong chain based on a geometry type of underlying geometries of the first entity and the first partner entity.
In the digital design system in the prior art, a designer searches or searches required design knowledge data by himself, the searched design knowledge data is often not structured data which meets requirements, and design activities generate a plurality of design knowledge data which can not be effectively updated, so that the design knowledge data is old, most importantly, some design knowledge data are modified for many times and can not trace the design knowledge context well, and the data such as texts have disordered structures, parameters and formats, so that the development of new design activities in a CAD system is difficult to support, and the digital design efficiency of products is low.
Disclosure of Invention
Long-term practice shows that designers usually need to search and search required design knowledge data in design activities in a CAD system, and a great deal of design knowledge data can be generated in each design activity, so that the traditional CAD system does not have the functions of storing and updating design knowledge, and can not effectively update data in a design knowledge database, thereby causing the old design knowledge data; more importantly, some design knowledge data are modified and edited for many times, which easily causes confusion of structure, parameters and format, and the design knowledge context cannot be traced well, so that the rapid and effective implementation of new design activities in the CAD system is difficult to support.
In view of the above, the present invention is directed to a method for tracing design knowledge in a CAD system based on a block chain, which is used to solve the above problems, and the method for tracing design knowledge in a CAD system based on a block chain includes:
step S1, collecting the design knowledge node data, the user information data and the equipment information data in the active window in the CAD system, and storing the knowledge node data, the user information data and the equipment information data in a local storage unit;
step S2, verifying the knowledge node data, calculating a Hash value of the knowledge node data, the user information data and the equipment information data in the local storage unit after the knowledge node data passes the verification, backing up the knowledge node data, the user information data and the equipment information data in the local storage unit to a backup unit and generating a backup address, writing the Hash value and the backup address into a block chain private chain, and anchoring the block chain private chain module to a block chain public chain module;
step S3, the active window in the CAD system requests to obtain the design knowledge node data, and after the verification is passed, the knowledge node data and a plurality of backup addresses stored in the block chain public chain module are displayed;
and step S4, the active window in the CAD system requests to acquire the design knowledge node data in the backup address, and returns to display the knowledge node data and the tracing data.
Preferably, the design knowledge node data of the active window in the CAD system is acquired at least including image data and text data.
Preferably, in step S1, after the image data and the text data in the design knowledge node data of the active window in the CAD system are acquired, the image data and the text data are subjected to structured preprocessing.
Preferably, in step S2, the verification of the knowledge node data includes right verification and content verification.
Preferably, in step S3, the active window in the CAD system requesting acquisition of the design knowledge node data passes the verification process including authorization verification.
Preferably, in step S4, the data of the knowledge node and the tracing data in the public blockchain under one backup address are displayed, wherein the tracing data includes a plurality of backup addresses and summary information arranged in time sequence.
To better implement the above method, the present invention provides a system for implementing the above method for tracing back design knowledge in a blockchain-based CAD system, the system comprising:
the acquisition unit is used for acquiring design knowledge node data, user information data and equipment information data in an active window in the CAD system and storing the knowledge node data, the user information data and the equipment information data to the local storage unit;
the block chain unit comprises a verification module and a calculation anchoring module, wherein the verification module is used for verifying knowledge node data; the computation anchoring module is used for computing a Hash value of knowledge node data, user information data and equipment information data in the local storage unit after the knowledge node data passes verification, backing up the knowledge node data, the user information data and the equipment information data in the local storage unit to a backup unit and generating a backup address, writing the Hash value and the backup address into a block chain private chain, and anchoring the block chain private chain module to the block chain public chain module;
the request display unit is used for requesting the movable window in the CAD system to acquire the data of the design knowledge node, and displaying the data of the knowledge node and a plurality of backup addresses stored in the block chain public chain module after the data of the design knowledge node passes the verification;
and the display tracing unit is used for requesting the active window in the CAD system to acquire the design knowledge node data in the backup address and returning the display knowledge node data and the tracing data.
Preferably, the blockchain unit comprises an anchoring module for anchoring a blockchain private chain module into a blockchain public chain module.
Preferably, the system further comprises a local storage unit and a backup unit, wherein the local storage unit is used for storing knowledge node data, user information data and equipment information data; the backup unit is used for backing up the knowledge node data, the user information data and the equipment information data in the local storage unit and generating a backup address.
According to another aspect of the embodiments of the present invention, there is provided a storage medium, the storage medium including a stored program, wherein when the program runs, a device in which the storage medium is located is controlled to execute the above method.
According to the method for tracing the design knowledge in the CAD system based on the block chain, the method comprises the steps of collecting design knowledge node data, user information data and equipment information data in a movable window in the CAD system, and storing the knowledge node data, the user information data and the equipment information data in a local storage unit; verifying the knowledge node data, after the knowledge node data passes the verification, calculating a Hash value of the knowledge node data, the user information data and the equipment information data in the local storage unit, backing up the knowledge node data, the user information data and the equipment information data in the local storage unit to a backup unit and generating a backup address, writing the Hash value and the backup address into a block chain private chain, and anchoring the block chain private chain module to a block chain public chain module; the method can generate a plurality of design knowledge data for the latest design activities, and can effectively update the design knowledge data; the method comprises the steps that an active window in a CAD system requests to acquire design knowledge node data, and after verification is passed, the knowledge node data and a plurality of backup addresses stored in a block chain public chain module are displayed; and the active window in the CAD system requests to acquire the design knowledge node data in the backup address, and returns and displays the knowledge node data and the tracing data. The invention also provides a system for implementing the method, which can store backup information and Hash values generated by knowledge node data into the block chain private chain module, prevent the design knowledge data from generating disordered structures, parameters and formats of data such as texts after being modified for many times, and can not effectively trace the source of the design knowledge, thereby effectively supporting the development of new design activities in a CAD system and improving the digital design efficiency of products.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart of a design knowledge tracing method in a CAD system based on a blockchain according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," "third," and the like in the description and in the claims, and in the drawings, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The design method aims to solve the problems that in a digital design system in the prior art, design activities generate a plurality of design knowledge data and can not be effectively updated, so that the design knowledge data are old, most importantly, some design knowledge data are modified for many times and can not be traced to the design knowledge venation, and the data such as texts are disordered in structure, parameters and format, so that the development of new design activities in a CAD system is difficult to support, and the digital design efficiency of products is low. The invention provides a block chain-based design knowledge tracing method in a CAD system, as shown in FIG. 1, the block chain-based design knowledge tracing method in the CAD system of an embodiment of the invention is a flow chart, the block chain-based design knowledge tracing method in the CAD system comprises:
step S1, collecting the design knowledge node data, the user information data and the equipment information data in the active window in the CAD system, and storing the knowledge node data, the user information data and the equipment information data in a local storage unit;
step S2, verifying the knowledge node data, calculating a Hash value of the knowledge node data, the user information data and the equipment information data in the local storage unit after the knowledge node data passes the verification, backing up the knowledge node data, the user information data and the equipment information data in the local storage unit to a backup unit and generating a backup address, writing the Hash value and the backup address into a block chain private chain, and anchoring the block chain private chain module to a block chain public chain module;
step S3, the active window in the CAD system requests to obtain the design knowledge node data, and after the verification is passed, the knowledge node data and a plurality of backup addresses stored in the block chain public chain module are displayed;
and step S4, the active window in the CAD system requests to acquire the design knowledge node data in the backup address, and returns to display the knowledge node data and the tracing data.
The method comprises the steps of designing knowledge node data, user information data and equipment information data in an active window in a CAD system, and storing the knowledge node data, the user information data and the equipment information data to a local storage unit; verifying the knowledge node data, after the knowledge node data passes the verification, calculating a Hash value of the knowledge node data, the user information data and the equipment information data in the local storage unit, backing up the knowledge node data, the user information data and the equipment information data in the local storage unit to a backup unit and generating a backup address, writing the Hash value and the backup address into a block chain private chain, and anchoring the block chain private chain module to a block chain public chain module; the method can generate a plurality of design knowledge data for the latest design activities, and can effectively update the design knowledge data; the method comprises the steps that an active window in a CAD system requests to acquire design knowledge node data, and after verification is passed, the knowledge node data and a plurality of backup addresses stored in a block chain public chain module are displayed; and the active window in the CAD system requests to acquire the design knowledge node data in the backup address, and returns and displays the knowledge node data and the tracing data. The backup information and the Hash value generated by the knowledge node data can be stored in the block chain private chain module, the situation that the design knowledge data is disordered in structure, parameters and format due to repeated modification of the data such as texts and the like is avoided, and the design knowledge cannot be effectively traced, so that the development of new design activities in a CAD system can be effectively supported, and the digital design efficiency of products is improved.
In order to enable the design knowledge data to comprise various forms of data types and better support efficient development of design activities, in a preferred case of the invention, the design knowledge node data of the active window in the collected CAD system at least comprises image data and text data. In order to make the design knowledge more structured and facilitate the reuse of the design knowledge, under the more preferable condition of the invention, the image data comprises a drawing of three-dimensional modeling, a size constraint relation in a CAD drawing and dynamic video image data, and the empirical knowledge involved in the design activity is collected in each design activity process, so as to carry out structuring.
In order to better display and improve the reusability and the convenience of use of the design knowledge data, in step S1, after the image data and the text data in the design knowledge node data of the active window in the CAD system are collected, the image data and the text data are subjected to structured preprocessing. In order to better use the design knowledge data, preprocessing of XML is preferably adopted, extraction of features is adopted for the image data, and then constraint relation among the features is established.
In order to prevent the design knowledge data from being modified by malicious or abnormal authorized persons, which may cause confusion of the design knowledge data, in a more preferred case of the present invention, the verification of the knowledge node data includes authorization verification and content verification in step S2. The authority verification is to identify and verify the authority of the login personnel, for example, face identification and account control can be adopted; content verification is to identify the problem of nausea modification of text or images, such as: text or image information that is not content-dependent appears.
In order to enable the design knowledge data to be better presented to the current design process, in a more preferred case of the present invention, in step S3, the active window in the CAD system requests the acquisition of the design knowledge node data through a verification process including an authority verification. For example, not all persons have the right to refer to the content of design knowledge under the control of the right, and after non-designers or clients enter the system, only the content in the relevant right range can be referred under the control of the right.
In order to enable a designer to effectively trace the source of a version before design knowledge data, obtain abstract information such as persons participating in each modified content, modified partial data and the like, and quickly know a specific tracing context of revision, so as to obtain design knowledge data consulted at different stages, and reduce misleading design activities caused by disorder of text information, in a more preferable case of the invention, in step S4, knowledge node data under one backup address and tracing data in a common block chain are returned and displayed, wherein the tracing data comprises a plurality of backup addresses and abstract information arranged according to a time sequence. More preferably, the source tracing data comprises a plurality of backup addresses arranged according to a time sequence, and the plurality of backup addresses are arranged according to the time sequence, so that a designer can look up design knowledge data in different backup addresses according to needs, and the use efficiency and the reuse rate of knowledge are improved. In order to better implement the system of the design knowledge tracing method in the block chain-based CAD system, the system comprises:
the acquisition unit is used for acquiring design knowledge node data, user information data and equipment information data in an active window in the CAD system and storing the knowledge node data, the user information data and the equipment information data to the local storage unit;
the block chain unit comprises a verification module and a calculation anchoring module, wherein the verification module is used for verifying knowledge node data; the computation anchoring module is used for computing a Hash value of knowledge node data, user information data and equipment information data in the local storage unit after the knowledge node data passes verification, backing up the knowledge node data, the user information data and the equipment information data in the local storage unit to a backup unit and generating a backup address, writing the Hash value and the backup address into a block chain private chain, and anchoring the block chain private chain module to the block chain public chain module;
the request display unit is used for requesting the movable window in the CAD system to acquire the data of the design knowledge node, and displaying the data of the knowledge node and a plurality of backup addresses stored in the block chain public chain module after the data of the design knowledge node passes the verification;
and the display tracing unit is used for requesting the active window in the CAD system to acquire the design knowledge node data in the backup address and returning the display knowledge node data and the tracing data.
The system collects design knowledge node data, user information data and equipment information data in a movable window in a CAD system through a collection unit, and stores the knowledge node data, the user information data and the equipment information data to a local storage unit; verifying the knowledge node data by the block chain unit, calculating a Hash value of the knowledge node data, the user information data and the equipment information data in the local storage unit after the knowledge node data passes the verification, backing up the knowledge node data, the user information data and the equipment information data in the local storage unit to a backup unit and generating a backup address, writing the Hash value and the backup address into a block chain private chain, and anchoring the block chain private chain module to a block chain public chain module; the method can generate a plurality of design knowledge data for the latest design activities, and can effectively update the design knowledge data; the request display unit requests a movable window in the CAD system to acquire design knowledge node data, and after verification is passed, the request display unit displays the knowledge node data and a plurality of backup addresses stored in the block chain public chain module; and the display tracing unit requests to acquire the design knowledge node data in the backup address in the active window of the CAD system and returns the display knowledge node data and the tracing data. The system can store backup information and a Hash value generated by knowledge node data into the block chain private chain module, prevents the design knowledge data from being disordered in structure, parameters and format when the data such as texts are modified for many times, and can not effectively trace the source of the design knowledge, thereby effectively supporting the development of new design activities in a CAD system and improving the digital design efficiency of products.
In order to prevent the design knowledge data from being modified by a person with malicious or abnormal authority, which may cause confusion of the data, in a preferred case of the present invention, the blockchain unit includes an anchoring module for anchoring the blockchain private chain module to the blockchain public chain module.
In the embodiment of the invention, the block chain private chain module can be built by using an InterPlanetary file system (IPFS) technology, and the data in the local storage unit can be backed up according to the specified backup copy number through the block chain private chain module, so that data loss caused by offline or failure of one or more private cluster nodes can be prevented.
In order to better store and manage the data generated in the design process, in a preferred case of the invention, the system further comprises a local storage unit and a backup unit, wherein the local storage unit is used for storing knowledge node data, user information data and equipment information data; the backup unit is used for backing up the knowledge node data, the user information data and the equipment information data in the local storage unit and generating a backup address.
The embodiment of the invention also provides a storage medium, which comprises a stored program, wherein when the program runs, the device where the storage medium is located is controlled to execute the method.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus can be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of division of logical functions, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a mobile terminal, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method for tracing back design knowledge in a block chain-based CAD system is characterized by comprising the following steps:
step S1, collecting the design knowledge node data, the user information data and the equipment information data in the active window in the CAD system, and storing the knowledge node data, the user information data and the equipment information data in a local storage unit;
step S2, verifying the knowledge node data, calculating a Hash value of the knowledge node data, the user information data and the equipment information data in the local storage unit after the knowledge node data passes the verification, backing up the knowledge node data, the user information data and the equipment information data in the local storage unit to a backup unit and generating a backup address, writing the Hash value and the backup address into a block chain private chain, and anchoring the block chain private chain module to a block chain public chain module;
step S3, the active window in the CAD system requests to obtain the design knowledge node data, and after the verification is passed, the knowledge node data and a plurality of backup addresses stored in the block chain public chain module are displayed;
and step S4, the active window in the CAD system requests to acquire the design knowledge node data in the backup address, and returns to display the knowledge node data and the tracing data.
2. The method for tracing design knowledge in a block chain-based CAD system as claimed in claim 1, wherein the node data of the design knowledge of the active window in the CAD system is collected and includes at least image data and text data.
3. The method for tracing back design knowledge in a CAD system based on a blockchain according to claim 2, wherein in step S1, after acquiring image data and text data in design knowledge node data of a movable window in the CAD system, the image data and the text data are subjected to structured preprocessing.
4. The design knowledge tracing method in a block chain-based CAD system according to claim 1, wherein in step S2, the verification of knowledge node data includes right verification and content verification.
5. The method for tracing design knowledge in a block chain-based CAD system as recited in claim 1, wherein in step S3, the active window in the CAD system requests the design knowledge node data to be acquired through a verification process including right verification.
6. A design knowledge tracing method in a blockchain-based CAD system according to any one of claims 1 to 5, wherein in step S4, knowledge node data showing one backup address and tracing data in a public blockchain are returned, wherein the tracing data includes a plurality of backup addresses and summary information arranged in a time sequence.
7. A system for implementing the method for tracing back design knowledge in a blockchain-based CAD system according to any one of claims 1 to 6, the system comprising:
the acquisition unit is used for acquiring design knowledge node data, user information data and equipment information data in an active window in the CAD system and storing the knowledge node data, the user information data and the equipment information data to the local storage unit;
the block chain unit comprises a verification module and a calculation anchoring module, wherein the verification module is used for verifying knowledge node data; the computation anchoring module is used for computing a Hash value of knowledge node data, user information data and equipment information data in the local storage unit after the knowledge node data passes verification, backing up the knowledge node data, the user information data and the equipment information data in the local storage unit to a backup unit and generating a backup address, writing the Hash value and the backup address into a block chain private chain, and anchoring the block chain private chain module to the block chain public chain module;
the request display unit is used for requesting the movable window in the CAD system to acquire the data of the design knowledge node, and displaying the data of the knowledge node and a plurality of backup addresses stored in the block chain public chain module after the data of the design knowledge node passes the verification;
and the display tracing unit is used for requesting the active window in the CAD system to acquire the design knowledge node data in the backup address and returning the display knowledge node data and the tracing data.
8. The system of claim 7, wherein the blockchain unit comprises an anchoring module for anchoring a blockchain private chain module into a blockchain public chain module.
9. The system according to any one of claims 7-8, wherein the system further comprises a local storage unit and a backup unit, wherein the local storage unit is used for storing knowledge node data, user information data and equipment information data; the backup unit is used for backing up the knowledge node data, the user information data and the equipment information data in the local storage unit and generating a backup address.
10. A storage medium, comprising a stored program, wherein the program, when executed, controls an apparatus in which the storage medium is located to perform the method of any one of claims 1-6.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113032463A (en) * | 2021-04-01 | 2021-06-25 | 河南向量智能科技研究院有限公司 | Mining method of consensus data in product collaborative design block chain |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113032463A (en) * | 2021-04-01 | 2021-06-25 | 河南向量智能科技研究院有限公司 | Mining method of consensus data in product collaborative design block chain |
| CN113032463B (en) * | 2021-04-01 | 2024-03-15 | 河南向量智能科技研究院有限公司 | Mining method for co-data in product collaborative design block chain |
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