System and method for automatically generating information bulletins based on remote sensing target detection results

Abstract

The present invention belongs to the technical field of intelligent processing and application of remote sensing images, and discloses an automatic generation system and method of information express based on remote sensing target detection results, wherein the system includes an information element extraction module, an information express template management module, an information express dynamic generation module, a human-computer interaction editing module, and an information express product generation module. The present invention innovatively proposes to dynamically generate information express according to the standard style and preset rules of the information express template on the basis of reading and parsing remote sensing image data and target detection result files and automatically extracting key element information, and save the output information express file after manual interactive editing and confirmation. The present invention effectively improves the reliability, comprehensiveness, convenience, timeliness, flexibility and automation level of information express generation.

Description

Technical Field

[0001] The present invention belongs to the technical field of intelligent processing and application of remote sensing images, and in particular to a system and method for automatically generating information bulletins based on remote sensing target detection results. Background Art

[0002] With the rapid development of remote sensing technology and the smooth implementation of various earth observation projects, remote sensing platforms such as satellites and drones can continuously obtain surface remote sensing image data with unprecedented spatial resolution and coverage. These data contain rich geospatial information and have extremely high application value in many fields such as military reconnaissance, environmental monitoring, disaster warning, and urban planning. However, faced with massive amounts of remote sensing image data, how to efficiently extract useful information from them, especially for key targets, has become an urgent problem to be solved.

[0003] After entering the 21st century, artificial intelligence technology has ushered in a leapfrog development, covering computer vision, speech recognition, natural language processing and many other aspects. In particular, the development and application of deep learning technology has further promoted the popularization of artificial intelligence technology. It has been widely used in military, transportation, finance, medical, industry and other fields, and continues to innovate and break through. Against this background, remote sensing target intelligent detection technology based on deep learning came into being. By building a complex neural network model, learning and understanding the target features in the image, intelligently interpreting the remote sensing image, and automatically identifying specific targets in the image, such as ships, aircraft, vehicles, etc. The emergence of this technology has greatly improved the processing efficiency of remote sensing image data and provided a solid foundation for subsequent geospatial information analysis and application.

[0004] However, it is far from enough to simply achieve intelligent detection of targets. In practical applications, it is often necessary to quickly generate a quick report containing detailed information about the target so that decision makers or related personnel can quickly grasp the situation and make correct decisions. Summary of the invention

[0005] The purpose of the present invention is to provide a system and method for automatically generating information bulletins based on remote sensing target detection results, which can integrate remote sensing images and corresponding target detection results, and quickly and dynamically generate bulletins containing detailed target information online according to the standard style and preset rules of information bulletin templates, and support user interactive editing and modification, and finally export them as information bulletin files to support subsequent application services.

[0006] The technical solution adopted by the present invention is an automatic generation system of information express based on remote sensing target detection results, including an information element extraction module, an information express template management module, an information express dynamic generation module, a human-computer interaction editing module and an information express product generation module, wherein:

[0007] The information element extraction module is responsible for reading and analyzing the data of various remote sensing images and corresponding target detection results, and automatically extracting key element information;

[0008] The information express template management module is responsible for the comprehensive management and application of information express templates;

[0009] The information bulletin dynamic generation module is responsible for dynamically generating information bulletins according to the automatically extracted key element information, the standard style of the information bulletin template and the preset rules;

[0010] The human-computer interactive editing module is responsible for supporting users to interactively edit and modify the content of the information bulletin based on the dynamic generation of the information bulletin through the coordinated display of remote sensing images and target detection results and the real-time update preview of the information bulletin;

[0011] The information express product generation module is responsible for generating information express products and outputting them in the form of files to the specified file path.

[0012] Furthermore, the information element extraction module includes remote sensing image reading and analysis, target detection result reading and analysis, and automatic extraction of key element information; remote sensing image reading and analysis is responsible for reading and analyzing visible light / infrared / SAR / video remote sensing image data in tif format to obtain pixel information and attribute information of remote sensing images; target detection result reading and analysis is responsible for reading and analyzing target detection result files in txt or json format to obtain target position information, target identity information and target motion information of target detection results; automatic extraction of key element information is responsible for automatic extraction of various key element information based on the results of remote sensing image reading and analysis and target detection result reading and analysis.

[0013] Furthermore, the information express template management module includes information express template display management, information express template application, information express template import and analysis, information express template export, and information express template deletion; the information express template display management is responsible for displaying, renaming and querying all information express templates entered into the system; the information express template application is responsible for applying an information express template to the current information express generation task immediately after the user selects it, and automatically setting it as the system's default information express template; the information express template import and analysis is responsible for automatically parsing external information express templates in doc or docx format that meet the information express template specifications and saving them to the background database; the information express template export is responsible for exporting the information express template files in doc or docx format based on the information express template selected in the system, and storing them in the specified file path; the information express template deletion is responsible for supporting users to select an information express template and delete it with one click.

[0014] Furthermore, the dynamic generation module of information bulletins includes template element matching and dynamic generation of information bulletin content; template element matching is responsible for matching key element information with information bulletin template elements, and screening to obtain key element information listed in the information bulletin template; dynamic generation of information bulletin content is responsible for dynamically generating information bulletins according to the key element information screened by template element matching, in accordance with the standard style and preset rules of the information bulletin template.

[0015] Furthermore, the human-computer interaction editing module includes coordinated display of remote sensing images and target detection results, real-time update preview of information express, and interactive editing of information express content; the coordinated display of remote sensing images and target detection results is responsible for the front-end publishing and display of remote sensing images in a slicing-free form, and draws a target frame on the front end according to the geographic coordinates of the four corner points of the target detection results to coordinately display the target detection results, and also supports users to click on the target frame to display the target attributes; the real-time update preview of information express is responsible for the real-time update preview display of information express; the interactive editing of information express content is responsible for supporting users to interactively edit and modify the content of information express based on the coordinated display of remote sensing images and target detection results and the real-time update preview of information express, and combining manual analysis and information proofreading.

[0016] Furthermore, the information express product generation module includes doc format information express product generation output, docx format information express product generation output, and pdf format information express product generation output; the doc format information express product generation output is responsible for outputting and saving the information express content in the form of a doc file; the docx format information express product generation output is responsible for outputting and saving the information express content in the form of a docx file; the pdf format information express product generation output is responsible for outputting and saving the information express content in the form of a pdf file.

[0017] The method for automatically generating an information bulletin based on remote sensing target detection results is implemented by the above-mentioned system for automatically generating an information bulletin based on remote sensing target detection results, and comprises the following steps:

[0018] S1, the information element extraction module reads and analyzes various remote sensing images and corresponding target detection results, and automatically extracts key element information;

[0019] S2, in the information express template management module, the user selects an information express template to apply to the current information express generation task, and automatically sets it as the default information express template, while supporting the user to perform comprehensive management of the information express template;

[0020] S3, based on the selected information express template, the information express dynamic generation module matches the elements listed in the information express template with the automatically extracted key element information, and further dynamically generates various types of information express element information according to the standard style and preset rules of the information express template based on the matching results, and adaptively fills them into the information express template to dynamically generate the information express;

[0021] S4, based on the dynamic generation of information bulletins, the human-computer interactive editing module supports users to interactively edit and modify the content of information bulletins through the coordinated display of remote sensing images and target detection results and the real-time update preview of information bulletins. After the modification is completed, it is manually confirmed and submitted;

[0022] S5. Based on the final manually modified and confirmed information express, the information express product generation module is responsible for generating the information express product in doc / docx / pdf format and exporting it to the specified folder path.

[0023] Furthermore, the specific steps of S1 include:

[0024] S11, set the file path, read and parse the visible light / infrared / SAR / video remote sensing image data in tif format and the corresponding target detection result file in txt or json format;

[0025] S12, based on S11, automatically extracting the image name, satellite code, sensor type, sensor number, image shooting time, mission plan number, resolution, imaging band number, and image width from the results of remote sensing image reading and parsing;

[0026] S13, based on S11, automatically extract the longitude and latitude coordinates of the four corner points of the target, the target name, the target type, the identification number, the target length, the target width, the target movement speed, and the target movement direction from the target detection result reading and parsing results.

[0027] Further, in said S2:

[0028] After the user selects a certain information express template, the information express template data is called from the database and applied to the current information express generation task, and is automatically set as the default information express template; if this step is not performed, the default template is used;

[0029] The information bulletin template includes element name, element type, whether it is required, default value, element style, and information bulletin element arrangement style.

[0030] Furthermore, the specific steps of S4 include:

[0031] S41, publishing and displaying the remote sensing image on the front end in a slice-free manner, and displaying the target detection result in a coordinated manner by drawing a target frame using the geographic coordinates of the four corner points, and when the user clicks the target frame in the display window, a target attribute box will pop up to display the attribute information of the corresponding target;

[0032] S42, breaking down the current information bulletin content into strips, and displaying each content item independently in an edit box, allowing the user to interactively edit and modify any element content, and confirm and submit after the editing and modification is completed;

[0033] S43, the user clicks the preview button, and the information express file in PDF format is automatically generated according to the current information express content, and the information express file in PDF format is displayed on the front-end interface through the PDF.js front-end display plug-in.

[0034] The beneficial effects of the present invention are:

[0035] (1) It can integrate remote sensing images and corresponding target detection results, and quickly and dynamically generate bulletins containing detailed target information online according to the standard style and preset rules of the information bulletin template. It also supports user interactive editing and modification, and finally exports it to an information bulletin file to support subsequent application services.

[0036] (2) Effectively improved the reliability, comprehensiveness, convenience, timeliness, flexibility and automation level of information bulletin generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a composition diagram of the system of the present invention.

[0038] Figure 2 This is a sample schematic diagram of the information bulletin template of the present invention.

[0039] Figure 3 This is a sample schematic diagram of the information bulletin of the present invention.

[0040] Figure 4 Flow chart of the method of the present invention. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present invention clearer and more understandable, the technical solution of the present invention will be further described in detail below with reference to the accompanying drawings.

[0042] Automatic generation system of information bulletins based on remote sensing target detection results, such as Figure 1 As shown, it includes an information element extraction module, a newsletter template management module, a newsletter dynamic generation module, a human-computer interaction editing module, and a newsletter product generation module.

[0043] Information element extraction module

[0044] The information element extraction module is responsible for reading and analyzing data of various remote sensing images and corresponding target detection results, and automatically extracting key element information.

[0045] The information element extraction module includes remote sensing image reading and analysis, target detection result reading and analysis, and automatic extraction of key element information.

[0046] (1) Remote sensing image reading and analysis

[0047] Responsible for reading and parsing visible light / infrared / SAR / video remote sensing image data in tif format to obtain pixel information and attribute information of remote sensing images.

[0048] (2) Reading and analyzing target detection results

[0049] Responsible for reading and parsing target detection result files in txt or json format to obtain target location information, target identity information, target motion information, etc. of the target detection results.

[0050] (3) Automatic extraction of key element information

[0051] Responsible for automatically extracting various key element information based on the results of remote sensing image reading and analysis and target detection result reading and analysis.

[0052] Key information elements include image name, satellite code, sensor type, sensor number, image shooting time, mission plan number, resolution, number of imaging bands, image width, longitude and latitude coordinates of the four corner points of the target, target name, target type, identification number, target length, target width, target movement speed, target movement direction, etc.

[0053] Information Express Template Management Module

[0054] The information express template management module is responsible for the comprehensive management and application of information express templates.

[0055] The information express template management module includes information express template display management, information express template application, information express template import and analysis, information express template export, and information express template deletion.

[0056] (1) Information Express Template Display Management

[0057] Responsible for displaying, renaming and querying all information bulletin templates entered into the system.

[0058] (2) Application of Information Express Template

[0059] Responsible for applying an information express template to the current information express generation task immediately after the user selects it, and automatically setting it as the system default information express template.

[0060] (3) Information Express Template Import and Analysis

[0061] Responsible for automatically parsing external information express templates in doc or docx format that meet the information express template specifications and saving them to the backend database.

[0062] (4) Export of information bulletin template

[0063] Responsible for exporting the information express template file in doc or docx format based on the information express template selected in the system and storing it in the specified file path.

[0064] (5) Information Express Template Delete

[0065] Responsible for supporting users to select an information express template and delete it with one click.

[0066] Information Express Dynamic Generation Module

[0067] The information bulletin dynamic generation module is responsible for dynamically generating information bulletins based on automatically extracted key element information, in accordance with the information bulletin template standard style and preset rules.

[0068] The information bulletin dynamic generation module includes template element matching and information bulletin content dynamic generation.

[0069] (1) Template element matching

[0070] Responsible for matching key element information with the elements of the information express template, and screening to obtain the key element information listed in the information express template.

[0071] (2) Dynamic generation of information bulletin content

[0072] Responsible for dynamically generating information bulletins based on the key element information obtained by matching and screening template elements, according to the standard style and preset rules of the information bulletin template, for example:

[0073] For the text element, if a ship target is detected, the following preset rules are used to dynamically generate the text content (for details, please refer to Figure 3 ):

[0074] This time, (satellite name) detected (total number of ships N) ship targets in the observation area:

[0075] Ship target No. 1 is (ship target name No. 1), length is (ship target length No. 1) meters, width is (ship target width No. 1) meters;

[0076] Ship target No. 2 is (ship target name No. 2), length is (ship target length No. 2) meters, width is (ship target width No. 2) meters; ......

[0078] The target ship (N) is (target ship name), its length is (target ship length) meters, and its width is (target ship width) meters;

[0079] If no ship target is detected, the text content is the default text set in the information bulletin template (for details, please refer to Figure 2 ):

[0080] No valuable target information was found in the observation area this time;

[0081] For other elements, fill in the element information value to the specified position according to the standard style of the information express template:

[0082] Feature name: feature information value;

[0083] For example:

[0084] Shooting time: 2024-11-28 13:45:30;

[0085] In summary, the information bulletin is generated dynamically.

[0086] Human-computer interaction editing module

[0087] The human-computer interactive editing module is responsible for supporting users to interactively edit and modify the content of the information bulletin based on the dynamic generation of the information bulletin through the coordinated display of remote sensing images and target detection results and the real-time update preview of the information bulletin.

[0088] The human-computer interactive editing module includes the coordinated display of remote sensing images and target detection results, real-time update preview of information bulletins, and interactive editing of information bulletin content.

[0089] (1) Collaborative display of remote sensing images and target detection results

[0090] Responsible for publishing and displaying remote sensing images on the front end in a slicing-free format, and drawing a target frame based on the geographic coordinates of the four corner points of the target detection results on the front end to coordinate the display of the target detection results. In addition, it supports users to click on the target frame to display the target attributes.

[0091] (2) Real-time update preview of information bulletin

[0092] Responsible for the real-time update preview display of information bulletins.

[0093] (3) Interactive editing of information bulletin content

[0094] Responsible for supporting users to interactively edit and modify the content of the Information Bulletin based on the coordinated display of remote sensing images and target detection results and the real-time update preview of the Information Bulletin, combined with manual analysis and information proofreading.

[0095] Information Express Product Generation Module

[0096] The information express product generation module is responsible for generating information express products and outputting them in the form of files to the specified file path.

[0097] The information express product generation module includes information express product generation output in doc format, information express product generation output in docx format, and information express product generation output in pdf format.

[0098] (1)Generate and output information bulletin products in doc format

[0099] Responsible for outputting and saving the information bulletin content in the form of a doc file.

[0100] (2)Generate and output information bulletin products in docx format

[0101] Responsible for outputting and saving the information bulletin content in the form of docx file.

[0102] (3) PDF format information bulletin product generation and output

[0103] Responsible for outputting and saving the information bulletin content in the form of a pdf file.

[0104] The method for automatically generating information bulletins based on remote sensing target detection results is implemented by the above-mentioned system for automatically generating information bulletins based on remote sensing target detection results, such as Figure 4 As shown, the following steps are included:

[0105] S1, the information element extraction module reads and analyzes various remote sensing images and corresponding target detection results, and automatically extracts key element information. The specific steps include:

[0106] S11, set the file path, read and parse the visible light / infrared / SAR / video remote sensing image data in tif format and the corresponding target detection result file in txt or json format;

[0107] S12, based on S11, automatically extract key element information such as image name, satellite code, sensor type, sensor number, image shooting time, mission plan number, resolution, imaging band number, image width, etc. from the results of remote sensing image reading and analysis;

[0108] S13, based on S11, automatically extracts key element information such as the longitude and latitude coordinates of the four corner points of the target, the target name, the target type, the identification number, the target length, the target width, the target movement speed, and the target movement direction from the target detection result reading and parsing results.

[0109] S2, in the information express template management module, the user selects an information express template to apply to the current information express generation task, and automatically sets it as the default information express template, while supporting the user to perform comprehensive management of the information express template.

[0110] After the user selects an information express template, the information express template data can be called from the database and applied to the current information express generation task, and automatically set as the default information express template; if this step is not performed, the default template is used.

[0111] The information bulletin template includes information such as element name, element type, whether it is required, default value, element style (font color, font size, whether italic, whether bold, line spacing, etc.), and arrangement style of information bulletin elements.

[0112] S3, based on the selection of the information express template, the information express dynamic generation module matches the elements listed in the information express template with the automatically extracted key element information, and further dynamically generates various types of information express element information according to the standard style and preset rules of the information express template based on the matching results, and adaptively fills it into the information express template to dynamically generate the information express.

[0113] S4, based on the dynamic generation of information bulletins, the human-computer interactive editing module supports users to interactively edit and modify the content of information bulletins through the coordinated display of remote sensing images and target detection results and the real-time update preview of information bulletins. After the modification is completed, it is manually confirmed and submitted. The specific steps include:

[0114] S41, publishing and displaying the remote sensing image on the front end in a slice-free manner, and displaying the target detection result in a coordinated manner by drawing a target frame using the geographic coordinates of the four corner points, and when the user clicks the target frame in the display window, a target attribute box will pop up to display the attribute information of the corresponding target;

[0115] S42, breaking down the current information bulletin content into strips, and displaying each content item independently in an edit box, so that the user can interactively edit and modify any element content, and confirm and submit after the editing and modification is completed;

[0116] S43, the user clicks the preview button, and the information express file in PDF format is automatically generated according to the current information express content, and the information express file in PDF format is displayed on the front-end interface through the PDF.js front-end display plug-in.

[0117] S5. Based on the final manually modified and confirmed information express, the information express product generation module is responsible for generating the information express product in doc / docx / pdf format and exporting it to the specified folder path.

[0118] The contents not described in detail in the specification of the present invention belong to the existing known technologies in the field.

Claims

1. An automatic generation system of information bulletins based on remote sensing target detection results, characterized in that: It includes information element extraction module, information express template management module, information express dynamic generation module, human-computer interaction editing module and information express product generation module, among which: The information element extraction module is responsible for reading and analyzing the data of various remote sensing images and corresponding target detection results, and automatically extracting key element information; The information express template management module is responsible for the comprehensive management and application of information express templates; The information bulletin dynamic generation module is responsible for dynamically generating information bulletins according to the automatically extracted key element information, the standard style of the information bulletin template and the preset rules; The human-computer interactive editing module is responsible for supporting users to interactively edit and modify the content of the information bulletin based on the dynamic generation of the information bulletin through the coordinated display of remote sensing images and target detection results and the real-time update preview of the information bulletin; The information express product generation module is responsible for generating information express products and outputting them in the form of files to the specified file path.

2. The automatic generation system of information bulletins based on remote sensing target detection results according to claim 1 is characterized in that: The information element extraction module includes remote sensing image reading and analysis, target detection result reading and analysis, and automatic extraction of key element information; remote sensing image reading and analysis is responsible for reading and analyzing visible light / infrared / SAR / video remote sensing image data in tif format to obtain pixel information and attribute information of remote sensing images; The target detection result reading and parsing is responsible for reading and parsing the target detection result files in txt or json format to obtain the target location information, target identity information and target motion information of the target detection results; the automatic extraction of key element information is responsible for the automatic extraction of various key element information based on the results of remote sensing image reading and parsing and target detection result reading and parsing.

3. The automatic generation system of information bulletins based on remote sensing target detection results according to claim 1 is characterized in that: The information express template management module includes information express template display management, information express template application, information express template import and analysis, information express template export, and information express template deletion; the information express template display management is responsible for displaying, renaming and querying all information express templates entered into the system; the information express template application is responsible for applying an information express template to the current information express generation task immediately after the user selects it, and automatically setting it as the system default information express template; the information express template import and analysis is responsible for automatically parsing external information express templates in doc or docx format that meet the information express template specifications and saving them to the backend database; Information express template export is responsible for exporting the information express template file in doc or docx format based on the information express template selected in the system, and storing it in the specified file path; Information express template deletion is responsible for supporting users to select an information express template and delete it with one click.

4. The automatic generation system of information bulletins based on remote sensing target detection results according to claim 1 is characterized in that: The dynamic generation module of information express includes template element matching and dynamic generation of information express content; template element matching is responsible for matching key element information with information express template elements, and screening out key element information listed in the information express template; dynamic generation of information express content is responsible for dynamically generating information express according to the key element information screened out by template element matching, in accordance with the standard style and preset rules of the information express template.

5. The automatic generation system of information bulletins based on remote sensing target detection results according to claim 1 is characterized in that: The human-computer interactive editing module includes the collaborative display of remote sensing images and target detection results, real-time update preview of information bulletins, and interactive editing of information bulletin content; the collaborative display of remote sensing images and target detection results is responsible for publishing and displaying remote sensing images on the front end in a slice-free manner, and drawing a target frame on the front end based on the geographic coordinates of the four corner points of the target detection results to collaboratively display the target detection results. In addition, it supports users to click on the target frame to display the target attributes; The real-time update preview of the information express is responsible for the real-time update preview display of the information express; the interactive editing of the information express content is responsible for supporting users to interactively edit and modify the information express content based on the coordinated display of remote sensing images and target detection results and the real-time update preview of the information express, combined with manual analysis and information proofreading.

6. The automatic generation system of information bulletins based on remote sensing target detection results according to claim 1 is characterized in that: The information express product generation module includes doc format information express product generation output, docx format information express product generation output, and pdf format information express product generation output; the doc format information express product generation output is responsible for outputting and saving the information express content in the form of a doc file; the docx format information express product generation output is responsible for outputting and saving the information express content in the form of a docx file; the pdf format information express product generation output is responsible for outputting and saving the information express content in the form of a pdf file.

7. A method for automatically generating an information bulletin based on remote sensing target detection results, implemented by the system for automatically generating an information bulletin based on remote sensing target detection results according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1, the information element extraction module reads and analyzes various remote sensing images and corresponding target detection results, and automatically extracts key element information; S2, in the information express template management module, the user selects an information express template to apply to the current information express generation task, and automatically sets it as the default information express template, while supporting the user to perform comprehensive management of the information express template; S3, based on the selected information express template, the information express dynamic generation module matches the elements listed in the information express template with the automatically extracted key element information, and further dynamically generates various types of information express element information according to the standard style and preset rules of the information express template based on the matching results, and adaptively fills them into the information express template to dynamically generate the information express; S4, based on the dynamic generation of information bulletins, the human-computer interactive editing module supports users to interactively edit and modify the content of information bulletins through the coordinated display of remote sensing images and target detection results and the real-time update preview of information bulletins. After the modification is completed, it is manually confirmed and submitted; S5. Based on the final manually modified and confirmed information express, the information express product generation module is responsible for generating the information express product in doc / docx / pdf format and exporting it to the specified folder path.

8. The method for automatically generating information bulletins based on remote sensing target detection results according to claim 7, characterized in that: The specific steps of S1 include: S11, set the file path, read and parse the visible light / infrared / SAR / video remote sensing image data in tif format and the corresponding target detection result file in txt or json format; S12, based on S11, automatically extracting the image name, satellite code, sensor type, sensor number, image shooting time, mission plan number, resolution, imaging band number, and image width from the results of remote sensing image reading and parsing; S13, based on S11, automatically extract the longitude and latitude coordinates of the four corner points of the target, the target name, the target type, the identification number, the target length, the target width, the target movement speed, and the target movement direction from the target detection result reading and parsing results.

9. The method for automatically generating information bulletins based on remote sensing target detection results according to claim 7, characterized in that: In S2: After the user selects a certain information express template, the information express template data is called from the database and applied to the current information express generation task, and is automatically set as the default information express template; If this step is not performed, the default template is used; The information bulletin template includes element name, element type, whether it is required, default value, element style, and information bulletin element arrangement style.

10. The method for automatically generating information bulletins based on remote sensing target detection results according to claim 7, characterized in that: The specific steps of S4 include: S41, publishing and displaying the remote sensing image on the front end in a slice-free manner, and displaying the target detection result in a coordinated manner by drawing a target frame using the geographic coordinates of the four corner points, and when the user clicks the target frame in the display window, a target attribute box will pop up to display the attribute information of the corresponding target; S42, breaking down the current information bulletin content into strips, and displaying each content item independently in an edit box, allowing the user to interactively edit and modify any element content, and confirm and submit after the editing and modification is completed; S43, the user clicks the preview button, and the information express file in PDF format is automatically generated according to the current information express content, and the information express file in PDF format is displayed on the front-end interface through the PDF.js front-end display plug-in.

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