CN117955738A - Cross-platform multi-terminal drawing synchronization method and system - Google Patents
Cross-platform multi-terminal drawing synchronization method and system Download PDFInfo
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Abstract
The invention provides a cross-platform multi-terminal drawing synchronization method and a system, which relate to the technical field of data processing, wherein the method comprises the following steps: the method comprises the steps of carrying out multidimensional pre-verification on a CAD drawing to be transmitted to obtain a drawing pre-verification operator, obtaining a transmission and reception compatibility verification operator when the CAD drawing to be transmitted passes through, generating a CAD compression encryption instruction and a CAD transmission environment verification instruction when the CAD drawing to be transmitted passes through, obtaining a compression encryption CAD drawing carrying decryption feature identification based on the CAD compression encryption instruction, obtaining a transmission environment joint verification operator based on the CAD transmission environment verification instruction, and generating a CAD transmission activation instruction to execute transmission of the compression encryption CAD drawing when the CAD transmission activation instruction is qualified as a transmission environment.
Description
Technical Field
The invention relates to the technical field of data processing, in particular to a cross-platform multi-terminal drawing synchronization method and system.
Background
With the continuous progress and development of wireless communication technology, CAD wireless transmission software also faces some new challenges and opportunities, and CAD drawing transmission is a process of generating packaging files from drawings and external files (such as printing patterns, lines, fonts, external references, etc.) required by the drawings, which is similar to arranging file transfer files, but is more strict and effective, and in the prior art, there is a technical problem that the CAD drawing transmission process is not safe due to lack of control over the CAD drawing transmission process.
Disclosure of Invention
The application provides a cross-platform multi-terminal drawing synchronization method and system, which are used for solving the technical problem that CAD drawing transmission is unsafe due to the lack of control over the CAD drawing transmission process in the prior art.
In view of the above problems, the application provides a cross-platform multi-terminal drawing synchronization method and system.
In a first aspect, the present application provides a cross-platform multi-terminal drawing synchronization method, which includes: receiving a CAD drawing transmission task, wherein the CAD drawing transmission task comprises a CAD drawing to be transmitted and a drawing transmission route corresponding to the CAD drawing to be transmitted; carrying out multidimensional pre-verification based on the CAD drawing to be transmitted to obtain a drawing pre-verification operator; when the drawing pre-verification operator passes, carrying out transmission and reception compatibility verification on the CAD drawing to be transmitted based on the drawing transmission route to obtain a transmission and reception compatibility verification operator; when the transmission and reception compatibility verification operator is compatible with transmission and reception, generating a CAD compression encryption instruction and a CAD transmission environment verification instruction; activating a CAD compression encryption channel based on the CAD compression encryption instruction, and compressing and encrypting the CAD drawing to be transmitted according to the CAD compression encryption channel to obtain a compression encryption CAD drawing carrying a decryption feature identifier, wherein the CAD compression encryption channel comprises a CAD compressor and a CAD encryptor; based on the CAD transmission environment inspection instruction, carrying out joint inspection on the CAD transmission soft environment and the CAD transmission hard environment according to the drawing transmission route to obtain a transmission environment joint inspection operator; and when the transmission environment joint check operator is qualified, generating a CAD transmission activation instruction, and executing the transmission of the compressed and encrypted CAD drawing according to the CAD transmission activation instruction.
In a second aspect, the present application provides a cross-platform multi-terminal drawing synchronization system, the system comprising: the task receiving module is used for receiving a CAD drawing transmission task, wherein the CAD drawing transmission task comprises a CAD drawing to be transmitted and a drawing transmission route corresponding to the CAD drawing to be transmitted; the multidimensional pre-verification module is used for carrying out multidimensional pre-verification based on the CAD drawing to be transmitted to obtain a drawing pre-verification operator; the verification module is used for carrying out transmission and reception compatibility verification on the CAD drawing to be transmitted based on the drawing transmission route when the drawing pre-verification operator passes, so as to obtain a transmission and reception compatibility verification operator; the first judging module is used for generating a CAD compression encryption instruction and a CAD transmission environment checking instruction when the transmission-reception compatibility verifying operator is compatible with transmission reception; the channel activation module is used for activating a CAD compression encryption channel based on the CAD compression encryption instruction, compressing and encrypting the CAD drawing to be transmitted according to the CAD compression encryption channel to obtain a compression encryption CAD drawing carrying a decryption characteristic mark, wherein the CAD compression encryption channel comprises a CAD compressor and a CAD encryptor; the joint inspection module is used for carrying out joint inspection on the CAD transmission soft environment and the CAD transmission hard environment according to the drawing transmission route based on the CAD transmission environment inspection instruction to obtain a transmission environment joint inspection operator; and the instruction generation module is used for generating a CAD transmission activation instruction when the transmission environment joint check operator is qualified, and executing the transmission of the compressed and encrypted CAD drawing according to the CAD transmission activation instruction.
One or more technical schemes provided by the application have at least the following technical effects or advantages:
The application provides a cross-platform multi-terminal drawing synchronization method and a system, relates to the technical field of data processing, solves the technical problem that CAD drawing transmission is unsafe due to lack of control over the CAD drawing transmission process in the prior art, realizes reasonable and accurate control over the CAD drawing transmission process, and improves the reliability of CAD drawing transmission.
Drawings
FIG. 1 is a schematic flow diagram of a cross-platform multi-terminal drawing synchronization method;
Fig. 2 is a schematic diagram of a cross-platform multi-terminal drawing synchronization system.
Reference numerals illustrate: the system comprises a task receiving module 1, a multi-dimensional pre-verification module 2, a verification module 3, a first judgment module 4, a channel activation module 5, a joint verification module 6 and an instruction generation module 7.
Detailed Description
The application provides a cross-platform multi-terminal drawing synchronization method and a system, which are used for solving the technical problem that CAD drawing transmission is unsafe due to lack of control over CAD drawing transmission processes in the prior art.
Example 1
As shown in fig. 1, an embodiment of the present application provides a cross-platform multi-terminal drawing synchronization method, which includes:
step A100: receiving a CAD drawing transmission task, wherein the CAD drawing transmission task comprises a CAD drawing to be transmitted and a drawing transmission route corresponding to the CAD drawing to be transmitted;
In order to ensure the efficiency of cross-platform transmission of CAD drawings in the later stage, the transmission task of the CAD drawings is firstly required to be received through the system, the CAD drawing transmission task can comprise the CAD drawings to be transmitted and drawing transmission routes corresponding to the CAD drawings to be transmitted, the CAD drawings to be transmitted are patterns manufactured by overall layout of engineering projects, external shapes, internal arrangement, structural construction, internal and external decoration, equipment, construction and the like of a building through an Auto drawing transmission and receiving terminal; the CAD drawing to be transmitted has the characteristics of complete drawing, accurate expression and specific requirements, the drawing transmission route corresponding to the CAD drawing to be transmitted refers to carrying out local network transmission, internet transmission, mobile storage device transmission and the like on the CAD drawing to be transmitted through a cross-platform, the local network transmission refers to uploading the CAD drawing to a shared folder by using the local network transmission when a data sender and a data receiver are in the same local area network, and then the folder is accessed through a network driver or remote desktop connection, so that the transmission can be realized, the Internet transmission refers to that if the data sender and the data receiver are not in the same local area network, the Internet transmission, namely, email transmission, cloud storage transmission, FTP transmission and the like can be used, the mobile storage device, such as a USB flash disk, a mobile hard disk and the like, can be used when the CAD drawing is required to be transmitted among different devices, and the cross-platform multiport drawing can be synchronized as an important reference basis for later realization.
Step A200: carrying out multidimensional pre-verification based on the CAD drawing to be transmitted to obtain a drawing pre-verification operator;
further, the step a200 of the present application further includes:
Step a210: calling a drawing constraint feature set corresponding to the CAD drawing to be transmitted;
step A220: carrying out integrity evaluation on the CAD drawing to be transmitted based on the drawing constraint feature set to obtain a drawing integrity evaluation coefficient;
Step A230: performing accuracy evaluation on the CAD drawing to be transmitted based on the drawing constraint feature set to obtain a drawing accuracy evaluation coefficient;
Step A240: performing definition evaluation on the CAD drawing to be transmitted based on the drawing constraint feature set to obtain a drawing definition evaluation coefficient;
step A250: judging whether the drawing integrity evaluation coefficient, the drawing accuracy evaluation coefficient and the drawing definition evaluation coefficient meet a multistage drawing evaluation constraint interval or not;
Step A260: and if the drawing integrity evaluation coefficient, the drawing accuracy evaluation coefficient and the drawing definition evaluation coefficient meet the multi-level drawing evaluation constraint interval, the obtained drawing pre-checking operator passes.
Further, step a250 of the present application includes:
Step A251: if the drawing integrity evaluation coefficient, the drawing accuracy evaluation coefficient and the drawing definition evaluation coefficient do not meet the multi-level drawing evaluation constraint interval, the obtained drawing pre-checking operator does not pass;
step a252: when the obtained drawing pre-checking operator does not pass, obtaining a drawing abnormality evaluation coefficient;
Step a253: based on the drawing abnormality evaluation coefficient, carrying out abnormality feature positioning on the CAD drawing to be transmitted according to the drawing constraint feature set to obtain a drawing abnormality feature positioning result;
Step A254: performing abnormality correction on the CAD drawing to be transmitted according to the drawing abnormality feature positioning result to obtain a first adjustment CAD drawing;
step A255: and updating data of the CAD drawing to be transmitted according to the first adjustment CAD drawing.
In the application, in order to better determine the cross-platform multi-terminal synchronization reliability of the CAD drawing, the multi-dimensional pre-verification is needed to be carried out on the obtained CAD drawing to be transmitted, namely, drawing constraint feature sets corresponding to the CAD drawing to be transmitted are firstly called, drawing constraint features are used for defining and controlling the relation among graphs in the CAD drawing, and can comprise horizontal constraint, vertical constraint, alignment constraint, distance constraint, angle constraint, parallel constraint, vertical constraint, symmetrical constraint and the like, wherein the horizontal constraint is that lines, edges or objects in the CAD drawing are limited in the horizontal direction, the horizontal position is kept, the vertical constraint is that the lines, edges or objects in the CAD drawing are limited in the vertical direction, the vertical position is kept, the alignment constraint is that two points, lines, edges or objects in the CAD drawing are aligned, so that they share the same position, distance constraint refers to defining a distance relationship between two points, lines, edges or objects in a CAD drawing, a fixed distance or a relative distance can be specified, angle constraint refers to defining an angle relationship between two lines, edges or objects in a CAD drawing, a fixed angle or a relative angle can be specified, parallel constraint refers to restricting two lines, edges or objects in a CAD drawing to a parallel relationship, vertical constraint refers to restricting two lines, edges or objects in a CAD drawing to a vertical relationship, symmetrical constraint refers to restricting data in a CAD drawing to a symmetrical shape, maintaining symmetry of relative positions and shapes, tangential constraint refers to restricting circles, curves or arcs in a CAD drawing to be in contact or tangent with other objects, thereby obtaining a drawing constraint feature set
Further, carrying out integrity evaluation on the CAD drawing to be transmitted based on the drawing constraint feature set, namely traversing the data in the CAD drawing to be transmitted according to the constraint features in the drawing constraint feature set, judging whether the mutual relations of various elements in the CAD drawing are consistent, if the dimensions are consistent with the figures, the symbols are consistent with labels, and the like, carrying out clear judgment on the line width in the CAD drawing to be transmitted according to the constraint features in the drawing constraint feature set, carrying out accuracy evaluation on the CAD drawing to be transmitted based on the drawing constraint feature set, judging the difference between the measurement result of drawing carried out on the CAD drawing and the actual dimensions, carrying out higher accuracy evaluation if the difference is smaller, so as to correspondingly obtain the drawing accuracy evaluation coefficient, carrying out definition evaluation on the CAD to be transmitted based on the constraint feature set, and carrying out clear and definite judgment on the line width in the CAD drawing according to the constraint features in the drawing constraint feature set, and carrying out clear and definition judgment on the line width in the CAD drawing if the CAD drawing to be transmitted is too fuzzy or difficult to be recognized, carrying out clear judgment on the line width evaluation coefficient, so as to correspondingly obtain the drawing accuracy evaluation coefficient.
Further, whether the drawing integrity evaluation coefficient, the drawing accuracy evaluation coefficient and the drawing definition evaluation coefficient meet the multi-level drawing evaluation constraint interval is respectively judged, the multi-level drawing evaluation constraint interval comprises a constraint interval corresponding to the drawing integrity evaluation coefficient, a constraint interval corresponding to the drawing accuracy evaluation coefficient and a constraint interval corresponding to the drawing definition evaluation coefficient, the multi-level drawing evaluation constraint interval is obtained by demarcating historical constraint critical values, if the drawing integrity evaluation coefficient, the drawing accuracy evaluation coefficient and the drawing definition evaluation coefficient do not meet the multi-level drawing evaluation constraint interval, the fact that any one of the drawing integrity evaluation coefficient, the drawing accuracy evaluation coefficient and the drawing definition evaluation coefficient does not meet the multi-level drawing evaluation constraint interval exists, meanwhile, regarding that the drawing pre-checking operator is failed, when the obtained drawing pre-checking operator is failed, obtaining drawing abnormality evaluation coefficients, wherein the drawing abnormality evaluation coefficients can comprise drawing integrity abnormality evaluation coefficients and/or drawing accuracy abnormality evaluation coefficients and/or drawing definition abnormality evaluation coefficients, carrying out abnormality feature positioning on a CAD drawing to be transmitted according to a drawing constraint feature set based on the drawing abnormality evaluation coefficients, namely traversing the CAD drawing through the drawing integrity abnormality evaluation coefficients to obtain drawing integrity abnormality feature positioning, traversing the drawing accuracy abnormality evaluation coefficients to obtain drawing accuracy abnormality feature positioning, traversing the drawing definition abnormality evaluation coefficients to obtain drawing definition abnormality feature positioning, integrating to generate drawing abnormality feature positioning results on the basis, further, carrying out abnormal correction on the CAD drawing to be transmitted according to the drawing abnormal feature positioning result, namely carrying out data correction on the consistency of data on drawing integrity abnormal feature positioning in the CAD drawing to be transmitted according to the drawing abnormal feature positioning result, carrying out data correction on the dimensional data on drawing accuracy abnormal feature positioning in the CAD drawing to be transmitted according to the drawing abnormal feature positioning result, carrying out data correction on line width definition on drawing definition abnormal feature positioning in the CAD drawing to be transmitted according to the drawing integrity correction result, the drawing accuracy correction result and the drawing definition correction result, generating a first adjustment CAD drawing, finally updating the abnormal data in the CAD drawing to be transmitted according to the first adjustment CAD drawing, leading the first adjustment CAD into the CAD drawing to be transmitted, and ensuring that the data in the CAD drawing to be transmitted are synchronous with the data of the first adjustment CAD drawing, and carrying out synchronization on the definition control interval according to the drawing integrity evaluation coefficient, the drawing accuracy evaluation coefficient and the drawing definition evaluation coefficient meet a multi-level drawing evaluation constraint interval, and carrying out synchronization on the drawing accuracy evaluation coefficient and the drawing accuracy evaluation coefficient as a definition constraint coefficient corresponding to the drawing integrity control interval at the moment, and carrying out synchronization on the definition control interval and the definition control interval.
Step A300: when the drawing pre-verification operator passes, carrying out transmission and reception compatibility verification on the CAD drawing to be transmitted based on the drawing transmission route to obtain a transmission and reception compatibility verification operator;
Further, the step a300 of the present application further includes:
step a310: reading drawing format attributes of the CAD drawing to be transmitted;
step A320: based on the drawing transmission route, extracting a drawing transmission receiving terminal, and reading CAD drawing format supporting attributes of the drawing transmission receiving terminal;
Step a330: carrying out compatibility evaluation on the drawing format attribute based on the CAD supporting drawing format attribute to obtain a compatibility evaluation coefficient;
step A340: judging whether the compatibility evaluation coefficient is smaller than a preset compatibility evaluation coefficient or not;
step A350: and if the compatibility evaluation coefficient is greater than or equal to the preset compatibility evaluation coefficient, the generated transmission-reception compatibility verification operator is transmission-reception compatibility.
Further, step a340 of the present application includes:
Step A341: if the compatibility evaluation coefficient is smaller than the preset compatibility evaluation coefficient, the generated transmission-reception compatibility verification operator is not compatible with transmission reception, and a CAD conversion instruction is generated, wherein the CAD conversion instruction comprises CAD conversion format attributes;
step a342: converting the CAD drawing to be transmitted according to the CAD conversion format attribute to obtain a second adjustment CAD drawing;
Step a343: performing feature consistency comparison on the second adjustment CAD drawing and the CAD drawing to be transmitted to obtain a feature consistency comparison coefficient;
Step a344: if the feature consistency comparison coefficient meets the preset feature consistency comparison constraint, generating a CAD conversion updating instruction;
Step a345: and updating the CAD drawing to be transmitted according to the second adjustment CAD drawing based on the CAD conversion updating instruction.
In the application, if the obtained drawing pre-checking algorithm performs multi-dimensional pre-checking, the drawing transmission route is used as the checking reference data to perform transmission and reception compatibility checking on the CAD drawing to be transmitted, firstly, drawing format attributes of the CAD drawing to be transmitted are read, the drawing format attributes refer to basic information and settings for describing and defining the CAD file, including but not limited to drawing file format types, length units in the drawing, drawing dimensions, drawing layers, drawing labeling patterns and the like, meanwhile, drawing transmission and reception terminals are extracted according to transmission termination nodes in the drawing transmission route, drawing format attributes supported in the drawing transmission and reception terminals are read, drawing format attributes supported in the drawing transmission and reception terminals are included in drawing format attributes of the CAD drawing to be transmitted, and further, compatibility evaluation is performed on the drawing format attributes according to the CAD drawing format attributes supported in the transmission and reception terminals, namely mutual identification and support degrees of the CAD drawing format attributes in different drawing transmission and reception terminals. Because different drawing transmission receiving terminals may adopt different file formats and internal data structures, compatibility evaluation and judgment can be performed by standard format support, unit conversion, labeling and word processing, layer management, scale and dimension labeling, and the standard format support refers to whether the drawing transmission receiving terminal supports mainstream CAD drawing standard formats, such as DWG, DXF, and the like. If the drawing transmission receiving terminal can correctly read and analyze the drawing files in the standard formats, the drawing transmission receiving terminal has good compatibility. The unit conversion refers to a relationship between different units by judging whether the drawing transmission reception terminal can correctly interpret and convert. For example, when a drawing document in feet is imported from one drawing transmission reception terminal to another drawing transmission reception terminal, whether it can be correctly converted into a desired unit (e.g., meter or millimeter) or not. The marking and word processing refers to judging whether the processing modes of the marking and the word between the drawing transmission receiving terminals are consistent. Including font style, size, alignment, special symbols, etc., whether the font style, size, alignment, special symbols, etc., can be displayed and edited correctly. The layer management refers to judging whether the drawing transmission receiving terminal can correctly identify and apply the layer information in the drawing. Including the name, color, visibility, etc. of the layers, whether consistency can be maintained. The line type and color processing refers to whether the processing modes of the line type and the color between the drawing transmission receiving terminals are consistent or not by judging. Such as the definition of the dotted and dotted lines and the mapping of colors, whether or not it is possible to display and edit correctly. The scale and the dimension marking refer to the scale and the dimension marking in the drawing can be correctly interpreted and converted by judging whether the drawing transmission receiving terminal is capable of correctly interpreting and converting the drawing. The method comprises the steps of scale identification, text position and size marking and the like. On the basis of which compatibility evaluation coefficients are obtained.
Further, comparing and judging the compatibility evaluation coefficient with a preset compatibility evaluation coefficient, wherein the preset compatibility evaluation coefficient is obtained by setting the average value of the reception compatibility evaluation coefficients of the drawing transmission and reception terminal in a history period, then judging whether the compatibility evaluation coefficient is smaller than the preset compatibility evaluation coefficient, if the compatibility evaluation coefficient is smaller than the preset compatibility evaluation coefficient, considering that the generated transmission and reception compatibility verification operator is not compatible for transmission and reception, generating a CAD conversion instruction at the same time, and comprising a CAD conversion format attribute in the CAD conversion instruction for converting the drawing format attribute of the current CAD drawing to be transmitted, thereby converting the CAD drawing to be transmitted based on the conversion mode set forth above according to the CAD conversion format attribute, thereby obtaining a second adjustment CAD drawing, further, comparing the data characteristics in the second adjustment CAD drawing with the data characteristics in the CAD drawing to be transmitted in the characteristic consistency, wherein the compared characteristics can be drawing digital characteristics, drawing precision characteristics, drawing editable characteristics, drawing visual characteristics and the like, the drawing digital characteristics refer to the definition and representation of graphs by using a Cartesian coordinate system, each element can be described by using a mathematical formula, the drawing precision characteristics refer to the fact that various complex geometric shapes and curves can be drawn at the precision of a submillimeter level or higher, the drawing editable characteristics refer to the fact that editing and modification can be performed at any time, the drawing visual characteristics refer to the fact that the characteristics can be presented in a 3D model or 2D graph mode, the characteristic consistency comparison coefficient can be obtained on the basis of the comparison, the higher the consistency in the comparison result is, the higher the characteristic consistency comparison coefficient is, and meanwhile, comparing the characteristic consistency comparison coefficient with a preset characteristic consistency comparison constraint, wherein the preset characteristic consistency comparison constraint can be set to 80%, when the characteristic consistency comparison coefficient meets the preset characteristic consistency comparison constraint, a CAD conversion updating instruction is generated, the transmission CAD drawing is updated based on a second adjustment CAD drawing through the CAD conversion updating instruction, the updated transmission CAD drawing is transmission and reception compatible, when the characteristic consistency comparison coefficient does not meet the preset characteristic consistency comparison constraint, the transmission CAD drawing is regarded as abnormal in the process of converting the transmission CAD drawing, the abnormality is required to be positioned, the format abnormality existing in the positioning is corrected, and if the compatibility evaluation coefficient is larger than/equal to the preset compatibility evaluation coefficient, the generated transmission and reception compatibility verification operator is regarded as transmission and reception compatible, and the multi-terminal realization is a basis for synchronous tamping of the cross-platform drawing.
Step A400: when the transmission and reception compatibility verification operator is compatible with transmission and reception, generating a CAD compression encryption instruction and a CAD transmission environment verification instruction;
In the application, transmission and reception compatibility verification is carried out on a CAD drawing to be transmitted based on a drawing transmission route, when a transmission and reception compatibility verification operator is transmission and reception compatible, the CAD drawing to be transmitted in the transmission and reception compatibility verification operator is considered to be compatible with CAD drawing format attributes of a drawing transmission terminal, so that a CAD compression encryption instruction and a CAD transmission environment verification instruction are generated, the CAD compression encryption instruction is an instruction for carrying out compression encryption operation on the CAD drawing to be transmitted, the CAD drawing to be transmitted and related supporting files are packaged into a ZIP file through the CAD compression encryption instruction, the ZIP file is converted into an encrypted PDF format file, the instruction can package all related files such as a drawing file, a font, an image, an external reference and the like together, sensitive information in the CAD drawing to be transmitted is protected from being accessed by unauthorized persons while sharing or backup is facilitated, printing, copying and editing authorities and the like can be limited, the CAD transmission environment verification instruction is used for ensuring correctness and completeness of the CAD file in a transmission process, and the CAD file can be respectively checked through the CAD transmission environment verification instruction, the CAD file to be subjected to file completeness, compression checking, file size checking, a CRC (CRC) is used for checking, a file integrity checking algorithm is provided for checking, a redundancy algorithm is used for checking, and the file is normally checked, and a redundancy value is checked, and the algorithm is used for checking the file is normally, and has been checked by a function has been checked. The sender and the receiver can verify whether the file is damaged or tampered during transmission by comparing the check values. Compressed file checking refers to the fact that if a compressed file format (e.g., ZIP) is used during transmission, the integrity of the compressed file may be checked using associated software or command line tools. These tools typically verify the CRC check value of the file or check the structure and metadata of the file to ensure that the file is not corrupted or damaged. Comparing file sizes refers to comparing whether the sizes of the source file and the transmitted file are consistent prior to sending and receiving the CAD file. If the files are the same size, it is generally considered that the files are not lost or corrupted during transmission. The file format compatibility check refers to ensuring that the CAD software of the receiving party can properly parse and open the file format of the sending party before the CAD file is transferred. Compatibility issues may be avoided by communicating, exchanging file formats and version information in advance, or using standard CAD file formats (e.g., DWG, DXF). The transmission log record refers to detailed information which can be recorded and transmitted when CAD file transmission is carried out, and the detailed information comprises transmission time, file size, a sender, a receiver and the like. The logs can be used for later tracking and checking problems, ensure the accuracy and the integrity of transmission, and realize the limiting effect on the synchronization of cross-platform multiport drawings.
Step A500: activating a CAD compression encryption channel based on the CAD compression encryption instruction, and compressing and encrypting the CAD drawing to be transmitted according to the CAD compression encryption channel to obtain a compression encryption CAD drawing carrying a decryption feature identifier, wherein the CAD compression encryption channel comprises a CAD compressor and a CAD encryptor;
In the application, on the basis of the obtained CAD compression encryption instruction, the CAD compression encryption channel is activated, the CAD compression encryption channel is a safety channel used in the transmission process of CAD files, the confidentiality, the integrity and the usability of the files are ensured, meanwhile, the CAD compression encryption channel is operated according to the CAD compression encryption instruction and comprises a CAD compressor and a CAD encryptor, so that CAD drawings to be transmitted are compressed and encrypted through the CAD compression encryption channel, the safety and the correctness of passwords are ensured when the CAD compression encryption channel is used, the occurrence of the condition of data loss or damage is avoided, the compression and encryption process of the CAD drawings to be transmitted can be realized in a FTPS, SFTP, HTTPS, VPN mode, and FTPS is a mode of encrypting FTP transmission by using an SSL/TLS protocol. It can provide end-to-end encryption and authentication to prevent data from being stolen or tampered with during transmission. SFTP is a file transfer protocol based on SSH protocol that can provide encrypted transmission and authentication functions. Compared with FTPS, SFTP does not need additional ports and certificates, and is simpler to use. HTTPS is an encrypted communication protocol based on the HTTP protocol, and uses the TLS/SSL protocol for encrypted transmission of data. It can provide end-to-end encryption and authentication, and is suitable for CAD file transmission on Web. VPN is a technology that creates a private network, enabling encrypted transport by establishing a virtual tunnel over a public network. The VPN can be used for carrying out CAD file transmission in an unrestricted and safe environment, and the compressed and encrypted CAD drawing carrying the decryption feature identification is obtained on the basis of the CAD file transmission, so that the compressed and encrypted CAD drawing can be used as reference data when the cross-platform multiport drawing is synchronized in the later period.
Step A600: based on the CAD transmission environment inspection instruction, carrying out joint inspection on the CAD transmission soft environment and the CAD transmission hard environment according to the drawing transmission route to obtain a transmission environment joint inspection operator;
Further, the step a600 of the present application further includes:
Step a610: reading real-time CAD transmission soft environment information and real-time CAD transmission hard environment information according to the drawing transmission route;
step a620: constructing a CAD transmission environment detection channel, wherein the CAD transmission environment detection channel comprises a CAD transmission soft environment detection branch and a CAD transmission hard environment detection branch;
step a630: inputting the real-time CAD transmission soft environment information and the real-time CAD transmission hard environment information into the CAD transmission environment detection channel to generate a transmission soft environment detection coefficient and a transmission hard environment detection coefficient;
Step A640: inputting the transmission soft environment detection coefficient and the transmission hard environment detection coefficient into a CAD transmission environment joint checker to generate the transmission environment joint check operator;
The CAD transmission environment joint checker comprises a transmission environment joint check decision, wherein the transmission environment joint check decision comprises that when the transmission soft environment detection coefficient meets the transmission soft environment detection constraint, and the transmission hard environment detection coefficient meets the transmission hard environment detection constraint, the obtained transmission environment joint check operator is qualified as the transmission environment, otherwise, the obtained transmission environment joint check operator is unqualified as the transmission environment, and a transmission environment early warning signal is generated.
Further, step a620 of the present application includes:
step A621: obtaining a CAD transmission soft environment detection record set and a CAD transmission hard environment detection record set;
Step a622: training the CAD transmission soft environment detection branches meeting the constraint of the preset soft environment detection precision based on the CAD transmission soft environment detection record set;
Step a623: training the CAD transmission hard environment detection branches meeting the constraint of preset hard environment detection precision based on the CAD transmission hard environment detection record set;
step A624: and connecting the CAD transmission soft environment detection branch with the CAD transmission hard environment detection branch to generate the CAD transmission environment detection channel.
Based on the obtained CAD transmission environment inspection instruction, the application performs joint inspection on the CAD transmission soft environment and the CAD transmission hard environment according to the drawing transmission route, namely, firstly reads real-time CAD transmission soft environment information and real-time CAD transmission hard environment information according to the drawing transmission route, wherein the real-time CAD transmission soft environment information comprises transmission software and protocols for managing and processing CAD drawings to be transmitted, and can comprise an operating system, a network protocol, a data transmission service and the like. Common software environments include: the real-time CAD transmission hard environment information refers to hardware equipment and network infrastructure used for supporting the transmission process of CAD drawing to be transmitted. Common hardware environments include: network device, server, storage device, and network connection
The method comprises the steps of correspondingly generating a CAD transmission soft environment detection branch through real-time CAD transmission soft environment information, generating a CAD transmission hard environment detection branch through real-time CAD transmission hard environment information, and simultaneously constructing a CAD transmission environment detection channel based on the CAD transmission soft environment detection branch and the CAD transmission hard environment detection branch, wherein the CAD transmission environment detection channel is a neural network model which can be subjected to self-iterative optimization continuously in machine learning, and is obtained through training of a training data set and a supervision data set, wherein each group of training data in the training data set comprises a CAD transmission soft environment detection record set and a CAD transmission hard environment detection record set.
Further, the CAD transmission environment detection channel construction process comprises the following steps: based on the CAD transmission soft environment detection record set, the CAD transmission soft environment detection branch meeting the constraint of the preset soft environment detection precision is trained, the CAD transmission soft environment detection branch can detect and evaluate the software environment related to the transmission of the CAD drawing to ensure that data can be safely and efficiently transmitted, when the CAD file is transmitted, the soft environment detection can be performed by considering the following aspects, namely an operating system, a network protocol, file transmission service, safety and encryption, user identity verification, log recording and auditing functions, data integrity verification and the like, then based on the CAD transmission hard environment detection record set, the CAD transmission hard environment detection branch meeting the constraint of the preset hard environment detection precision is trained, the CAD transmission hard environment detection branch can detect and evaluate hardware equipment and network infrastructure related to the transmission of the CAD drawing to ensure that the data can be safely and efficiently transmitted, and when the CAD file is transmitted, the CAD file can be considered to perform hard environment detection, namely network connection, storage equipment, a server, network equipment, redundancy and the like, finally, the CAD transmission soft environment detection branch and the CAD transmission hard environment detection branch are performed, the data is completed, and the data is completely trained after the training of the CAD transmission soft environment detection branch is completed, and the data is completely trained, and the data transmission is completed, and the training is completed.
In order to ensure the accuracy of the CAD transmission environment detection channel, the test process of the CAD transmission environment detection channel may be performed by the test data set, for example, the test accuracy may be set to 80%, and when the test accuracy of the test data set satisfies 80%, the CAD transmission environment detection channel is constructed to be completed,
Inputting real-time CAD transmission soft environment information and real-time CAD transmission hard environment information into a CAD transmission environment detection channel, generating a transmission soft environment detection coefficient and a transmission hard environment detection coefficient, inputting the transmission soft environment detection coefficient and the transmission hard environment detection coefficient into a CAD transmission environment joint checker, and generating a transmission environment joint check operator, wherein the CAD transmission environment joint checker comprises a transmission environment joint check decision, the transmission environment joint check decision comprises that when the transmission soft environment detection coefficient meets transmission soft environment detection constraint and the transmission hard environment detection constraint, the obtained transmission environment joint check operator is qualified as the transmission environment, otherwise, the obtained transmission environment joint check operator is unqualified as the transmission environment, and generating a transmission environment early warning signal for prompting that the environment in the transmission process of the CAD drawing to be transmitted is unsafe environment, and improving the accuracy of synchronizing cross-platform multi-terminal drawings realized in the later stage.
Step A700: and when the transmission environment joint check operator is qualified, generating a CAD transmission activation instruction, and executing the transmission of the compressed and encrypted CAD drawing according to the CAD transmission activation instruction.
In the method, a transmission environment joint check operator obtained by joint checking of a CAD transmission soft environment and a CAD transmission hard environment according to a drawing transmission route is judged, if the transmission environment in the transmission environment joint check operator is judged to be qualified, a CAD transmission activation instruction is generated, the CAD transmission activation instruction is used for activating and authorizing the transmission of a compressed and encrypted CAD drawing, and meanwhile, the CAD transmission activation instruction is used for verifying the authorization range of a drawing receiving end so as to ensure the transmission safety of the compressed and encrypted CAD drawing, and finally, the transmission of the compressed and encrypted CAD drawing is executed through the CAD transmission activation instruction, namely, a CAD transmission channel for transmitting the compressed and encrypted CAD drawing to a drawing receiving terminal is activated, and the compressed and encrypted drawing is safely transmitted to the drawing receiving terminal according to the CAD transmission channel, so that the later synchronization of cross-platform multi-terminal CAD drawing is ensured.
In summary, the cross-platform multi-terminal drawing synchronization method provided by the embodiment of the application at least comprises the following technical effects that a reasonable and accurate control CAD drawing transmission process is realized, and the reliability of CAD drawing transmission is improved.
Example two
Based on the same inventive concept as the cross-platform multi-terminal drawing synchronization method in the foregoing embodiment, as shown in fig. 2, the application provides a cross-platform multi-terminal drawing synchronization system, which includes:
The task receiving module 1 is used for receiving a CAD drawing transmission task, wherein the CAD drawing transmission task comprises a CAD drawing to be transmitted and a drawing transmission route corresponding to the CAD drawing to be transmitted;
the multidimensional pre-verification module 2 is used for carrying out multidimensional pre-verification based on the CAD drawing to be transmitted to obtain a drawing pre-verification operator;
The verification module 3 is used for carrying out transmission and reception compatibility verification on the CAD drawing to be transmitted based on the drawing transmission route when the drawing pre-verification operator passes, so as to obtain a transmission and reception compatibility verification operator;
The first judging module 4 is used for generating a CAD compression encryption instruction and a CAD transmission environment checking instruction when the transmission-reception compatibility verifying operator is transmission-reception compatible;
The channel activation module 5 is used for activating a CAD compression encryption channel based on the CAD compression encryption instruction, and compressing and encrypting the CAD drawing to be transmitted according to the CAD compression encryption channel to obtain a compression encryption CAD drawing carrying a decryption feature mark, wherein the CAD compression encryption channel comprises a CAD compressor and a CAD encryptor;
The joint inspection module 6 is used for carrying out joint inspection on the CAD transmission soft environment and the CAD transmission hard environment according to the drawing transmission route based on the CAD transmission environment inspection instruction to obtain a transmission environment joint inspection operator;
The instruction generation module 7 is used for generating a CAD transmission activation instruction when the transmission environment joint inspection operator is qualified, and executing the transmission of the compressed and encrypted CAD drawing according to the CAD transmission activation instruction.
Further, the system further comprises:
The invoking module is used for invoking the drawing constraint feature set corresponding to the CAD drawing to be transmitted;
The first evaluation module is used for carrying out integrity evaluation on the CAD drawing to be transmitted based on the drawing constraint feature set to obtain a drawing integrity evaluation coefficient;
the second evaluation module is used for carrying out accuracy evaluation on the CAD drawing to be transmitted based on the drawing constraint feature set to obtain drawing accuracy evaluation coefficients;
The third evaluation module is used for carrying out definition evaluation on the CAD drawing to be transmitted based on the drawing constraint feature set to obtain a drawing definition evaluation coefficient;
The second judging module is used for judging whether the drawing integrity evaluation coefficient, the drawing accuracy evaluation coefficient and the drawing definition evaluation coefficient meet a multistage drawing evaluation constraint interval or not;
And the third judging module is used for obtaining the drawing pre-checking operator if the drawing integrity evaluation coefficient, the drawing accuracy evaluation coefficient and the drawing definition evaluation coefficient meet the multi-level drawing evaluation constraint interval.
Further, the system further comprises:
The fourth judging module is used for judging whether the drawing integrity evaluation coefficient, the drawing accuracy evaluation coefficient and the drawing definition evaluation coefficient do not meet the multi-level drawing evaluation constraint interval or not, and the obtained drawing pre-checking operator does not pass;
the fifth judging module is used for obtaining a drawing abnormality evaluation coefficient when the obtained drawing pre-verification operator does not pass;
The abnormal feature positioning module is used for positioning abnormal features of the CAD drawing to be transmitted according to the drawing constraint feature set based on the drawing abnormal evaluation coefficient to obtain drawing abnormal feature positioning results;
The abnormality correction module is used for carrying out abnormality correction on the CAD drawing to be transmitted according to the drawing abnormality characteristic positioning result to obtain a first adjustment CAD drawing;
And the updating module is used for updating the data of the CAD drawing to be transmitted according to the first adjustment CAD drawing.
Further, the system further comprises:
The first reading module is used for reading drawing format attributes of the CAD drawing to be transmitted;
the extraction module is used for extracting a drawing transmission and reception terminal based on the drawing transmission route and reading CAD drawing format supporting attributes of the drawing transmission and reception terminal;
The fourth evaluation module is used for carrying out compatibility evaluation on the drawing format attribute based on the CAD-supporting drawing format attribute to obtain a compatibility evaluation coefficient;
The sixth judging module is used for judging whether the compatibility evaluation coefficient is smaller than a preset compatibility evaluation coefficient or not;
and the seventh judging module is used for generating the transmission-reception compatibility verification operator as transmission-reception compatibility if the compatibility evaluation coefficient is larger than/equal to the preset compatibility evaluation coefficient.
Further, the system further comprises:
The eighth judging module is configured to generate a CAD conversion instruction if the compatibility evaluation coefficient is smaller than the preset compatibility evaluation coefficient, and the generated transmission-reception compatibility verification operator is transmission-reception incompatibility, where the CAD conversion instruction includes a CAD conversion format attribute;
the conversion module is used for converting the CAD drawing to be transmitted according to the CAD conversion format attribute to obtain a second adjustment CAD drawing;
The comparison module is used for comparing the feature consistency of the second adjustment CAD drawing with the CAD drawing to be transmitted to obtain a feature consistency comparison coefficient;
The ninth judging module is used for generating a CAD conversion updating instruction if the characteristic consistency comparison coefficient meets the preset characteristic consistency comparison constraint;
and the adjusting module is used for updating the CAD drawing to be transmitted according to the second adjusting CAD drawing based on the CAD conversion updating instruction.
Further, the system further comprises:
the second reading module is used for reading the real-time CAD transmission soft environment information and the real-time CAD transmission hard environment information according to the drawing transmission route;
The construction module is used for constructing a CAD transmission environment detection channel, wherein the CAD transmission environment detection channel comprises a CAD transmission soft environment detection branch and a CAD transmission hard environment detection branch;
the first input module is used for inputting the real-time CAD transmission soft environment information and the real-time CAD transmission hard environment information into the CAD transmission environment detection channel to generate a transmission soft environment detection coefficient and a transmission hard environment detection coefficient;
The second input module is used for inputting the transmission soft environment detection coefficient and the transmission hard environment detection coefficient into a CAD transmission environment joint checker to generate the transmission environment joint check operator;
The CAD transmission environment joint checker comprises a transmission environment joint check decision, wherein the transmission environment joint check decision comprises that when the transmission soft environment detection coefficient meets the transmission soft environment detection constraint, and the transmission hard environment detection coefficient meets the transmission hard environment detection constraint, the obtained transmission environment joint check operator is qualified as the transmission environment, otherwise, the obtained transmission environment joint check operator is unqualified as the transmission environment, and a transmission environment early warning signal is generated.
Further, the system further comprises:
The record acquisition module is used for acquiring a CAD transmission soft environment detection record set and a CAD transmission hard environment detection record set;
a tenth judgment module, configured to train the CAD-transmission soft environment detection branch satisfying a preset soft environment detection accuracy constraint based on the CAD-transmission soft environment detection record set;
The eleventh judging module is used for training the CAD transmission hard environment detection branches meeting the preset hard environment detection precision constraint based on the CAD transmission hard environment detection record set;
The connecting module is used for connecting the CAD transmission soft environment detection branch and the CAD transmission hard environment detection branch to generate the CAD transmission environment detection channel.
Through the foregoing detailed description of a cross-platform multi-end drawing synchronization method, those skilled in the art can clearly know a cross-platform multi-end drawing synchronization system in this embodiment, and for the system disclosed in the embodiment, since the system corresponds to the method disclosed in the embodiment, the description is relatively simple, and relevant places refer to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A cross-platform multiterminal drawing synchronization method, the method comprising:
Receiving a CAD drawing transmission task, wherein the CAD drawing transmission task comprises a CAD drawing to be transmitted and a drawing transmission route corresponding to the CAD drawing to be transmitted;
Carrying out multidimensional pre-verification based on the CAD drawing to be transmitted to obtain a drawing pre-verification operator;
when the drawing pre-verification operator passes, carrying out transmission and reception compatibility verification on the CAD drawing to be transmitted based on the drawing transmission route to obtain a transmission and reception compatibility verification operator;
when the transmission and reception compatibility verification operator is compatible with transmission and reception, generating a CAD compression encryption instruction and a CAD transmission environment verification instruction;
activating a CAD compression encryption channel based on the CAD compression encryption instruction, and compressing and encrypting the CAD drawing to be transmitted according to the CAD compression encryption channel to obtain a compression encryption CAD drawing carrying a decryption feature identifier, wherein the CAD compression encryption channel comprises a CAD compressor and a CAD encryptor;
based on the CAD transmission environment inspection instruction, carrying out joint inspection on the CAD transmission soft environment and the CAD transmission hard environment according to the drawing transmission route to obtain a transmission environment joint inspection operator;
and when the transmission environment joint check operator is qualified, generating a CAD transmission activation instruction, and executing the transmission of the compressed and encrypted CAD drawing according to the CAD transmission activation instruction.
2. The method of claim 1, wherein performing multidimensional pre-verification based on the CAD drawing to be transmitted to obtain a drawing pre-verification operator, comprising:
calling a drawing constraint feature set corresponding to the CAD drawing to be transmitted;
carrying out integrity evaluation on the CAD drawing to be transmitted based on the drawing constraint feature set to obtain a drawing integrity evaluation coefficient;
performing accuracy evaluation on the CAD drawing to be transmitted based on the drawing constraint feature set to obtain a drawing accuracy evaluation coefficient;
Performing definition evaluation on the CAD drawing to be transmitted based on the drawing constraint feature set to obtain a drawing definition evaluation coefficient;
Judging whether the drawing integrity evaluation coefficient, the drawing accuracy evaluation coefficient and the drawing definition evaluation coefficient meet a multistage drawing evaluation constraint interval or not;
And if the drawing integrity evaluation coefficient, the drawing accuracy evaluation coefficient and the drawing definition evaluation coefficient meet the multi-level drawing evaluation constraint interval, the obtained drawing pre-checking operator passes.
3. The method of claim 2, wherein determining whether the drawing integrity evaluation coefficient, the drawing accuracy evaluation coefficient, and the drawing sharpness evaluation coefficient satisfy a multi-level drawing evaluation constraint interval comprises:
If the drawing integrity evaluation coefficient, the drawing accuracy evaluation coefficient and the drawing definition evaluation coefficient do not meet the multi-level drawing evaluation constraint interval, the obtained drawing pre-checking operator does not pass;
when the obtained drawing pre-checking operator does not pass, obtaining a drawing abnormality evaluation coefficient;
Based on the drawing abnormality evaluation coefficient, carrying out abnormality feature positioning on the CAD drawing to be transmitted according to the drawing constraint feature set to obtain a drawing abnormality feature positioning result;
Performing abnormality correction on the CAD drawing to be transmitted according to the drawing abnormality feature positioning result to obtain a first adjustment CAD drawing;
and updating data of the CAD drawing to be transmitted according to the first adjustment CAD drawing.
4. The method of claim 1, wherein when the drawing pre-verification operator is pass, performing transmission-reception compatibility verification on the CAD drawing to be transmitted based on the drawing transmission route, to obtain a transmission-reception compatibility verification operator, comprising:
Reading drawing format attributes of the CAD drawing to be transmitted;
based on the drawing transmission route, extracting a drawing transmission receiving terminal, and reading CAD drawing format supporting attributes of the drawing transmission receiving terminal;
Carrying out compatibility evaluation on the drawing format attribute based on the CAD supporting drawing format attribute to obtain a compatibility evaluation coefficient;
judging whether the compatibility evaluation coefficient is smaller than a preset compatibility evaluation coefficient or not;
And if the compatibility evaluation coefficient is greater than or equal to the preset compatibility evaluation coefficient, the generated transmission-reception compatibility verification operator is transmission-reception compatibility.
5. The method of claim 4, wherein determining whether the compatibility evaluation coefficient is less than a preset compatibility evaluation coefficient comprises:
If the compatibility evaluation coefficient is smaller than the preset compatibility evaluation coefficient, the generated transmission-reception compatibility verification operator is not compatible with transmission reception, and a CAD conversion instruction is generated, wherein the CAD conversion instruction comprises CAD conversion format attributes;
converting the CAD drawing to be transmitted according to the CAD conversion format attribute to obtain a second adjustment CAD drawing;
Performing feature consistency comparison on the second adjustment CAD drawing and the CAD drawing to be transmitted to obtain a feature consistency comparison coefficient;
if the feature consistency comparison coefficient meets the preset feature consistency comparison constraint, generating a CAD conversion updating instruction;
and updating the CAD drawing to be transmitted according to the second adjustment CAD drawing based on the CAD conversion updating instruction.
6. The method of claim 1, wherein based on the CAD transmission environment inspection instructions, performing a joint inspection of a CAD transmission soft environment and a CAD transmission hard environment according to the drawing transmission route to obtain a transmission environment joint inspection operator, comprising:
Reading real-time CAD transmission soft environment information and real-time CAD transmission hard environment information according to the drawing transmission route;
constructing a CAD transmission environment detection channel, wherein the CAD transmission environment detection channel comprises a CAD transmission soft environment detection branch and a CAD transmission hard environment detection branch;
Inputting the real-time CAD transmission soft environment information and the real-time CAD transmission hard environment information into the CAD transmission environment detection channel to generate a transmission soft environment detection coefficient and a transmission hard environment detection coefficient;
Inputting the transmission soft environment detection coefficient and the transmission hard environment detection coefficient into a CAD transmission environment joint checker to generate the transmission environment joint check operator;
The CAD transmission environment joint checker comprises a transmission environment joint check decision, wherein the transmission environment joint check decision comprises that when the transmission soft environment detection coefficient meets the transmission soft environment detection constraint, and the transmission hard environment detection coefficient meets the transmission hard environment detection constraint, the obtained transmission environment joint check operator is qualified as the transmission environment, otherwise, the obtained transmission environment joint check operator is unqualified as the transmission environment, and a transmission environment early warning signal is generated.
7. The method of claim 6, wherein constructing a CAD transmission environment detection path comprises:
obtaining a CAD transmission soft environment detection record set and a CAD transmission hard environment detection record set;
training the CAD transmission soft environment detection branches meeting the constraint of the preset soft environment detection precision based on the CAD transmission soft environment detection record set;
Training the CAD transmission hard environment detection branches meeting the constraint of preset hard environment detection precision based on the CAD transmission hard environment detection record set;
and connecting the CAD transmission soft environment detection branch with the CAD transmission hard environment detection branch to generate the CAD transmission environment detection channel.
8. A cross-platform multiterminal drawing synchronization system, the system comprising:
The task receiving module is used for receiving a CAD drawing transmission task, wherein the CAD drawing transmission task comprises a CAD drawing to be transmitted and a drawing transmission route corresponding to the CAD drawing to be transmitted;
the multidimensional pre-verification module is used for carrying out multidimensional pre-verification based on the CAD drawing to be transmitted to obtain a drawing pre-verification operator;
The verification module is used for carrying out transmission and reception compatibility verification on the CAD drawing to be transmitted based on the drawing transmission route when the drawing pre-verification operator passes, so as to obtain a transmission and reception compatibility verification operator;
The first judging module is used for generating a CAD compression encryption instruction and a CAD transmission environment checking instruction when the transmission-reception compatibility verifying operator is compatible with transmission reception;
The channel activation module is used for activating a CAD compression encryption channel based on the CAD compression encryption instruction, compressing and encrypting the CAD drawing to be transmitted according to the CAD compression encryption channel to obtain a compression encryption CAD drawing carrying a decryption characteristic mark, wherein the CAD compression encryption channel comprises a CAD compressor and a CAD encryptor;
The joint inspection module is used for carrying out joint inspection on the CAD transmission soft environment and the CAD transmission hard environment according to the drawing transmission route based on the CAD transmission environment inspection instruction to obtain a transmission environment joint inspection operator;
And the instruction generation module is used for generating a CAD transmission activation instruction when the transmission environment joint check operator is qualified, and executing the transmission of the compressed and encrypted CAD drawing according to the CAD transmission activation instruction.
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