Low, small and slow situation information display platform

Abstract

The invention discloses a low, small and slow situation information display platform. The display platform receives a test field comprehensive data packet obtained by monitoring a test field by each sensing device through a work station in the display platform; the data receiving and processing subsystem analyzes and preprocesses the comprehensive data packet of the test field to obtain situation data of the test field, and the two-dimensional situation display subsystem and the three-dimensional situation display subsystem respectively perform two-dimensional and three-dimensional situation display on a display according to the situation data of the test field; the display platform stores the comprehensive data packet of the test site received by the workstation and the situation data of the test site obtained after analysis and preprocessing in a database through the server, and backs up, manages and recovers the data stored in the database through the database management subsystem; and playback, by the situation data playback subsystem, the situation data stored in the database on the display. According to the technical scheme provided by the invention, the problem that the situation monitoring of the low, small and slow target is greatly limited due to the fact that only two-dimensional situation information can be displayed when the low, small and slow target is identified through a photoelectric detection or radar detection mode in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to, but is not limited to, the technical field of airport clearance management, and in particular to a low, small and slow situation information display platform. Background Art

[0002] Above the airport, the presence of low, small and slow targets (low-altitude, slow, small aircraft, the most common of which are drones and sky lanterns) may pose a threat to flight safety. How to effectively identify and prevent these low, small and slow targets has become a focus of attention in the field of aviation safety.

[0003] In recent years, remarkable results have been achieved in the field of low, small and slow target recognition. The use of artificial intelligence, photoelectric detection, radar and other technologies has been realized to effectively identify low, small and slow targets above airports. The application of low, small and slow target recognition technology has provided strong support for safety monitoring over airports; however, at present, after identifying low, small and slow targets through photoelectric detection or radar detection, the low, small and slow targets identified through photoelectric or radar display can usually only display two-dimensional situation information, which has great limitations for situation monitoring of low, small and slow targets. Summary of the invention

[0005] Purpose of the present invention: In order to solve the above-mentioned technical problems, an embodiment of the present invention provides a low, small and slow target situation information display platform to solve the problem that the existing method of identifying low, small and slow targets by photoelectric detection or radar detection can only display two-dimensional situation information, resulting in great limitations in the situation monitoring of low, small and slow targets.

[0006] The technical solution of the present invention: The embodiment of the present invention provides a low-speed, small and slow situation information display platform, including: a display, a workstation, a server, and multiple subsystems running on the workstation, the multiple subsystems including: a data receiving and processing subsystem, a two-dimensional situation display subsystem, a three-dimensional situation display subsystem, a situation data playback subsystem, a database management subsystem and a system management subsystem;

[0007] The workstation is used to receive the comprehensive data packets of the test field obtained by each sensing device through monitoring the test field; the test field situation data is obtained after the comprehensive data packets of the test field are analyzed and preprocessed by the data receiving and processing subsystem, and the two-dimensional situation display subsystem and the three-dimensional situation display subsystem respectively display the two-dimensional and three-dimensional situation on the display according to the test field situation data;

[0008] The server is used to store the test field situation data obtained after parsing and preprocessing the test field comprehensive data packet received by the workstation in its database, and to back up, manage and restore the data stored in the database through the database management subsystem, and to play back the situation data stored in the database on the display through the situation data playback subsystem.

[0009] Optionally, in the low, small and slow situation information display platform as described above,

[0010] The data receiving and processing subsystem is used to obtain the comprehensive data packet of the test field received by the workstation from each sensing device in real time. On the one hand, it sends it to the server for data file backup. On the other hand, the data receiving and processing subsystem parses the comprehensive data packet of the test field to parse out each monitored object and its status information and event information, and obtains the test field situation data after preprocessing, which are sent to the two-dimensional situation display subsystem and the three-dimensional situation display subsystem respectively to display the position information, posture information and event information of the received data; the test field situation data is also sent to the server for data storage.

[0011] Optionally, in the low, small and slow situation information display platform as described above,

[0012] The two-dimensional situation display subsystem is used to present the situation information of the test field and its surroundings in the form of a two-dimensional electronic map based on the test field situation data, and to display the geographical location and flight trajectory of aircraft and foreign flying objects in the test field in real time, and to load place name information, road information, river information and canal information in layers; the two-dimensional situation display subsystem supports two-dimensional electronic map display, sign drive display, electronic sign display, trajectory track display, and supports two-dimensional human-computer interaction function.

[0013] Optionally, in the low, small and slow situation information display platform as described above,

[0014] The functions of various display forms in the two-dimensional display of low, small and slow targets are as follows:

[0015] A two-dimensional real-time situational geographic information space is established through a two-dimensional electronic map display to load the two-dimensional electronic map data of the test site and its surroundings, and to store digital topographic maps, digital elevation (DEM) and GIS data of geographic features in layers; a real-time data-driven display of two-dimensional entity signs of low, small and slow targets on the electronic map is provided through a sign-driven display; auxiliary displays are added to low, small and slow targets through electronic signage display, thereby expanding the information display capability, and the extended information display includes: adding features, attributes, and flight parameters of low, small and slow targets; and displaying ground targets and air flight trajectories through different color trajectory lines to distinguish the spatial states of ground targets and air flight trajectories.

[0016] Optionally, in the low, small and slow situation information display platform as described above,

[0017] The three-dimensional situation display subsystem is used to present the situation information of the test site and its surroundings in the form of a digital globe, using the same driving data source as the two-dimensional situation display. On the basis of the situation information display of the two-dimensional situation display subsystem, according to satellite image data and digital elevation data, a three-dimensional geographical environment within a certain range with the test site as the center is automatically generated, and static targets within the test site are deployed for decoration and supplement. Then, the same driving data source as the two-dimensional situation display is used to display the geographical location and flight trajectory of aircraft and foreign flying objects in the test site in real time in the generated three-dimensional geographical environment, and place name information, road information, river information and canal information are loaded in layers; the three-dimensional situation display subsystem supports digital globe display, model-driven display, electronic sign display, trajectory display, and supports three-dimensional human-computer interaction functions.

[0018] Optionally, in the low, small and slow situation information display platform as described above,

[0019] The functions of various display forms in the three-dimensional display of low, small and slow targets are as follows:

[0020] Through the digital globe display, based on the dynamic loading of elevation data and satellite image data around the test site, a three-dimensional geographic environment is generated in real time, thereby realizing the switching, loading and real-time rendering output of multi-level high-precision geographic image data; through the binding of model-driven display and database, the monitoring objects in the test site and surrounding airspace are presented dynamically in real time, that is, low, small and slow targets are displayed in real time; auxiliary displays are added to the monitored objects in the form of electronic signs, thereby expanding the information display capability; and the trajectory and track display is used to display the movement trajectory or track of ground targets and air targets.

[0021] Optionally, in the low, small and slow situation information display platform as described above,

[0022] The situation data playback subsystem is used to play back the situation information by calling the database. Before the playback, the user specifies the time period and the monitored object to be played back. The situation data playback subsystem automatically reads the situation information from the database according to the time period and monitored object specified by the user, and realizes the start, pause, stop, and speed selection control through user operations during the playback process.

[0023] Optionally, in the low, small and slow situation information display platform as described above,

[0024] The database management subsystem is used to provide management functions for the database. The data in the database comes from the comprehensive data packet of the test site received by the data receiving and processing subsystem, as well as the test site situation data obtained after parsing and preprocessing; wherein, the management functions of the database management subsystem include database backup, backup file management and recovery of designated backup files, and supports automatic backup.

[0025] Optionally, in the low, small and slow situation information display platform as described above, the multiple subsystems running on the workstation further include: a system management subsystem;

[0026] The system management subsystem is used to provide parameter configuration functions for the operation of the low, small and slow situation information display platform, including: monitoring object drive information configuration, visual display parameter configuration and data backup information configuration.

[0027] Beneficial effects of the present invention: The embodiment of the present invention provides a low, small and slow situation information display platform, which uses digital earth technology and three-dimensional graphics technology to create a visualized three-dimensional geographical environment, and the displayed content includes the test site and surrounding terrain, static objects attached to the test site surface, and dynamic objects in the test site surface and nearby airspace. The low, small and slow situation information display platform provided by the embodiment of the present invention can timely detect and track the flight trajectory of low, small and slow targets by displaying foreign low, small and slow targets monitored by radar in real time in the visualization environment it constructs; this helps the airport security management department to quickly take corresponding measures to prevent potential safety risks.

[0028] In addition, the position, height, speed and other information of low, small and slow targets can be displayed in real time in a visualized three-dimensional geographic environment in combination with the test site situation data, helping managers to make accurate judgments and decisions, thereby significantly improving the safety of the airport. In particular, in emergency situations, such as the intrusion of clearance obstacles, the low, small and slow situation information display platform can quickly locate the intruding obstacles and provide strong support for emergency response. Furthermore, by tracking the dynamics of intruding obstacles in real time, managers can quickly initiate emergency plans and mobilize relevant resources for disposal; this helps to shorten emergency response time, reduce potential losses, and ensure the normal operation of the airport. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0030] Figure 1 A schematic diagram of the platform architecture of a low, small and slow situation information display platform provided in an embodiment of the present invention;

[0031] Figure 2 A schematic diagram of a flow chart of an air traffic control situation display operation performed by a low, small and slow situation information display platform provided in an embodiment of the present invention;

[0032] Figure 3 Schematic diagram of a two-dimensional and three-dimensional situation information display interface in an embodiment of the present invention;

[0033] Figure 4 A schematic diagram of a platform extension display interface in a three-dimensional situation information display interface in an embodiment of the present invention;

[0034] Figure 5 A schematic diagram of a flow chart of a playback process implemented by a situation data playback subsystem in an embodiment of the present invention;

[0035] Figure 6 The figure is a schematic diagram of the process of executing data management by the database management subsystem in the embodiment of the present invention. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily without conflict.

[0037] The above background technology has already explained that the presence of low, small and slow targets above the airport is an important factor affecting flight safety. The importance of low, small and slow target recognition is reflected in the following aspects:

[0038] 1. The need for security monitoring

[0039] Low, small and slow targets above the airport mainly include drones, birds, balloons, etc. These targets may collide with flights during flight, causing serious consequences. According to statistics, aviation accidents caused by bird strikes are common in recent years. Therefore, real-time and accurate identification and tracking of low, small and slow targets will help ensure the safety of airport operations.

[0040] 2. Prevent illegal intrusion

[0041] With the popularization of drone technology, some criminals may use drones to conduct illegal intrusions, reconnaissance, etc. Identifying low, small, and slow targets over airports can help detect and take measures in a timely manner to prevent potential threats.

[0042] 3. Requirements for Air Traffic Management

[0043] The air traffic volume at busy airports is huge, and low, small and slow targets can easily conflict with normal flights. By identifying these targets, air traffic management personnel can understand the dynamics in the air in a timely manner and ensure safe and smooth takeoff and landing of flights.

[0044] Therefore, how to effectively identify and prevent these low, small and slow targets has become the focus of attention in the field of aviation safety. At present, after identifying low, small and slow targets through photoelectric detection or radar detection, the low, small and slow targets identified through photoelectric or radar display can usually only display two-dimensional situation information, which has great limitations for situation monitoring of low, small and slow targets.

[0045] Since the identification of low, small and slow targets over airports is of great significance to ensuring aviation safety and improving airport operation efficiency, in the future, with the continuous development of science and technology, my country's research in the field of low, small and slow target identification will make more breakthroughs to safeguard the safe operation of airports. Based on the impact of low, small and slow targets on flight tests, it is urgent to develop a low, small and slow situation display platform, and it is particularly important to monitor the situation over the airport in real time.

[0046] In response to the above-mentioned problems and the need for real-time display of the situation of low, small and slow targets, an embodiment of the present invention provides a low, small and slow situation information display platform, which realizes 360-degree comprehensive situation information perception within the test field by fusing data from radar, optoelectronics and other sensing equipment, and intuitively displays the situation perception, tracking and monitoring of low, small and slow obstacles in the airport's clearance area.

[0047] The present invention provides the following specific embodiments which can be combined with each other. The same or similar concepts or processes may not be described in detail in some embodiments.

[0048] Figure 1 A schematic diagram of the platform architecture of a low-resolution, small-scale and slow-motion situation information display platform provided in an embodiment of the present invention. The low-resolution, small-scale and slow-motion situation information display platform provided in an embodiment of the present invention comprises: a display, a workstation, a server, and a plurality of subsystems running on the workstation, wherein the plurality of subsystems comprises: a data receiving and processing subsystem, a two-dimensional situation display subsystem, a three-dimensional situation display subsystem, a situation data playback subsystem, a database management subsystem and a system management subsystem.

[0049] like Figure 2 As shown, it is a schematic diagram of the process of executing air traffic control situation display operation of the low, small and slow situation information display platform provided by an embodiment of the present invention.

[0050] The workstation in the embodiment of the present invention is used to receive the comprehensive data packet of the test field obtained by each sensing device through monitoring the test field; the test field situation data is obtained after the comprehensive data packet of the test field is parsed and preprocessed by the data receiving and processing subsystem, and the two-dimensional situation display subsystem and the three-dimensional situation display subsystem respectively perform two-dimensional and three-dimensional situation display on the display according to the test field situation data;

[0051] The server is used to store the test field situation data obtained after parsing and preprocessing the test field comprehensive data packet received by the workstation in its database, and to back up, manage and restore the data stored in the database through the database management subsystem, and to play back the situation data stored in the database on the display through the situation data playback subsystem.

[0052] In one implementation of an embodiment of the present invention, a data receiving and processing subsystem is used to obtain in real time the comprehensive data packet of the test field received by the workstation from each sensing device. On the one hand, it sends it to the server for data file backup. On the other hand, the data receiving and processing subsystem parses the comprehensive data packet of the test field to parse out each monitored object and its status information and event information, and obtains the test field situation data after preprocessing (including removing wild values ​​and smoothing), and sends it to the two-dimensional situation display subsystem and the three-dimensional situation display subsystem respectively to display the position information, posture information and event information of the received data; the test field situation data is also sent to the server for data storage.

[0053] In one implementation of an embodiment of the present invention, a two-dimensional situation display subsystem is used to present the situation information of the test field and its surroundings in the form of a two-dimensional electronic map based on the test field situation data, display the geographical location and flight trajectory of aircraft and foreign flying objects in the test field in real time, and load place name information, road information, river information and canal information in layers; the two-dimensional situation display subsystem supports two-dimensional electronic map display, sign drive display, electronic sign display, trajectory track display, and supports two-dimensional human-computer interaction function.

[0054] In one implementation of an embodiment of the present invention, a three-dimensional situation display subsystem is used to present the situation information of the test site and its surroundings in the form of a digital globe, using the same driving data source as the two-dimensional situation display. On the basis of the situation information display of the two-dimensional situation display subsystem, according to satellite image data and digital elevation data, a three-dimensional geographical environment within a certain range centered on the test site is automatically generated, and static targets within the test site are deployed for decoration and supplement. Then, the same driving data source as the two-dimensional situation display is used to display the geographical location and flight trajectory of aircraft and foreign flying objects in the test site in real time in the generated three-dimensional geographical environment, and place name information, road information, river information and canal information are loaded in layers; the three-dimensional situation display subsystem supports digital globe display, model-driven display, electronic sign display, trajectory display, and supports three-dimensional human-computer interaction functions.

[0055] In one implementation of an embodiment of the present invention, a situation data playback subsystem is used to play back situation information by calling a database, with the user specifying a time period and a monitored object to be played back before playback; the situation data playback subsystem automatically reads situation information from the database according to the user-specified time period and monitored object, and implements start, pause, stop, and speed selection control through user operations during playback.

[0056] In one implementation of an embodiment of the present invention, the database management subsystem is used to provide management functions for the database, and the data in the database comes from the comprehensive data packet of the test field received by the data receiving and processing subsystem, as well as the test field situation data obtained after parsing and preprocessing; wherein, the management functions of the database management subsystem include database backup, backup file management and recovery of designated backup files, and supports automatic backup.

[0057] In one implementation of the embodiment of the present invention, the multiple subsystems running on the workstation further include: a system management subsystem;

[0058] The system management subsystem is used to provide parameter configuration functions for the operation of the low, small and slow situation information display platform, including: monitoring object drive information configuration, visual display parameter configuration and data backup information configuration.

[0059] The embodiment of the present invention provides a low, small and slow situation information display platform, which uses digital earth technology and three-dimensional graphics technology to create a visualized three-dimensional geographical environment, and the displayed content includes the test site and surrounding terrain, static objects attached to the test site surface, and dynamic objects in the test site surface and nearby airspace. The low, small and slow situation information display platform provided by the embodiment of the present invention can timely discover and track the flight trajectory of low, small and slow targets by displaying foreign low, small and slow targets monitored by radar in real time in the visualization environment it constructs; this helps the airport security management department to quickly take corresponding measures to prevent potential safety risks.

[0060] In addition, the position, height, speed and other information of low, small and slow targets can be displayed in real time in a visualized three-dimensional geographic environment in combination with the test site situation data, helping managers to make accurate judgments and decisions, thereby significantly improving the safety of the airport. In particular, in emergency situations, such as the intrusion of clearance obstacles, the low, small and slow situation information display platform can quickly locate the intruding obstacles and provide strong support for emergency response. Furthermore, by tracking the dynamics of intruding obstacles in real time, managers can quickly initiate emergency plans and mobilize relevant resources for disposal; this helps to shorten emergency response time, reduce potential losses, and ensure the normal operation of the airport.

[0061] The following is a detailed description of the functional modules of multiple subsystems running on a workstation in the low, small and slow situation information display platform provided by an embodiment of the present invention and their implementation methods.

[0062] 1. Data Receiving and Processing Subsystem

[0063] 1.1, Data receiving module

[0064] Responsible for receiving the comprehensive test field data packets from various sensing devices in real time, parsing the data packets according to the protocol in real time, and extracting the test field situation data, including: the location information, posture information and event information of the monitored target object;

[0065] The display platform provides a monitoring interface, continuously monitors the current receiving status, and provides the start and stop control functions of receiving.

[0066] 1.2, Data Preprocessing Module

[0067] The received test site situation data is preprocessed, including outlier processing and smoothing. Outlier processing is used to remove obviously incorrect data, and smoothing is responsible for interpolation between two points and transition for sudden changes in posture. Data preprocessing is a very important part, which can effectively avoid the sudden displacement or jitter of simulation objects in two-dimensional and three-dimensional maps. After preprocessing, data is distributed for two-dimensional and three-dimensional situation driving and data storage respectively.

[0068] 1.3, Data Storage Module

[0069] After the preprocessing, the test field situation data will be used for database storage and two-dimensional and three-dimensional situation information display. The server database storage will save the location information, posture information and event information with timestamps according to the monitored objects one by one, so that the situation information stored by the monitored objects can be quickly obtained when the situation data is played back.

[0070] In addition, the display platform provides database connection testing, stored procedure monitoring, and database connection status monitoring.

[0071] 2. 2D Situation Display Subsystem

[0072] 2.1, Electronic map display module

[0073] The two-dimensional electronic map provides the display basis for the two-dimensional situation display subsystem. The electronic map display module is used to establish a two-dimensional real-time situation geographic information space. It can load the two-dimensional electronic map data of the test site and its surroundings, and can store digital topographic maps, digital elevation (DEM) and GIS data of geographic features in layers.

[0074] The two-dimensional situation display subsystem provides visibility and hiding control of each layer of data, and can display relevant professional layers as needed, eliminating interference from irrelevant layers.

[0075] 2.2, Logo drive display module

[0076] The two-dimensional display of low, small and slow targets includes signs and electronic signs; the sign-driven display module provides real-time data-driven display of the two-dimensional physical signs of low, small and slow targets on the electronic map, which can make the two-dimensional physical signs show forward, backward and directional changes driven by the data source, so as to display the activities of the monitored targets in the test field or near-air.

[0077] 2.3, Electronic signage display module

[0078] Adding auxiliary displays for low, small and slow targets in the form of electronic signs can expand the information display capabilities, such as adding features, attributes, flight parameters and other data of low, small and slow targets. Electronic signs always face the observer and support marking categories (birds, drones) by background color.

[0079] 2.4, track display module

[0080] The 2D situation display subsystem supports the display of movement trajectories for ground targets and air targets, and supports the display and hiding control of trajectories. Since the current 2D electronic map is used, the air flight trajectory can use a blue track line, and the ground target can use a yellow track line to distinguish the spatial status between the two.

[0081] 2.5, 2D human-computer interaction module

[0082] The 2D situation display subsystem provides human-computer interaction functions related to 2D electronic map browsing, object operation and geographic measurement. In terms of 2D electronic map browsing, conventional 2D map operations can be implemented, including zooming in, zooming out and panning; in terms of object operation, selection, follow display and deselection operations can be provided; in terms of geographic measurement, straight-line distance, azimuth, angle and area measurement can be provided.

[0083] 3. 3D Situation Display Subsystem

[0084] 3.1, Digital Earth Display Module

[0085] The digital globe is a dedicated system for digital management and intuitive display of global geographic information. The digital globe display module can generate a three-dimensional geographic environment in real time based on the dynamic loading of elevation data and satellite image data around the test site. It can realize flexible switching, loading and real-time rendering output of multi-level high-precision geographic image data. The digital globe display module supports the adjustment of atmospheric display modes and various lighting and shadow modes.

[0086] 3.2, Type drive display module

[0087] The model-driven display module dynamically presents the monitored objects, i.e., low, small, and slow targets, in the test field and surrounding airspace in real time by binding with the database, which contains the calibrated codes, location information, attitude information, and event information of the monitored objects.

[0088] 3.2, Electronic signage display module

[0089] Adding auxiliary displays to monitored objects in the form of electronic signs can expand the information display capabilities, such as adding data such as the characteristics, attributes, flight parameters, etc. of the monitored objects. Electronic signs always face the observer and support marking categories by background color.

[0090] 3.4, track display module

[0091] The track and flight path display module supports the display of moving tracks or flight paths for ground targets and aerial targets, and supports the display and hiding control of the tracks.

[0092] 3.5, 3D human-computer interaction module

[0093] The 3D human-computer interaction module provides human-computer interaction functions related to digital earth browsing and physical object operation. For digital earth browsing, it provides operations including zooming in, zooming out, rotating, etc.; for physical object operation, it provides query, selection, approach display and visibility control.

[0094] Figure 3 is a schematic diagram of a two-dimensional and three-dimensional situation information display interface in an embodiment of the present invention, Figure 4 The following is a schematic diagram of the platform extended display interface in the three-dimensional situation information display interface in the embodiment of the present invention. The main frame interface consists of the main menu area, the sub-menu area and the business area; the extended display interface consists of the menu area, the situation display area and the tool area. It should be noted that the two-dimensional situation display subsystem and the three-dimensional situation display subsystem in the embodiment of the present invention are both the platform default display interfaces. Figure 4 As shown, the user can manually select the corresponding situation information display interface according to observation requirements.

[0095] 4. Situation Data Playback Subsystem

[0096] 4.1, Data query and browsing module

[0097] The data query and browsing module provides data query and browsing functions, which can be searched by monitoring object and / or by time period, helping users to query the situation data of all monitoring objects. The final query results are presented in the form of a list, which mainly describes the name of the monitoring object, object attribute information, location information, posture information, event information, and time period information of the monitoring object.

[0098] 4.2, Situation Data Playback Module

[0099] According to the user's operation, the situation data in the database can be replayed in two dimensions or three dimensions.

[0100] 4.3, Playback progress control module

[0101] During playback, users are supported to control the playback progress, including start, pause, stop, and speed selection.

[0102] like Figure 5 FIG. 1 is a flow chart of the playback process implemented by the situation data playback subsystem in an embodiment of the present invention.

[0103] 5. Database Management Subsystem

[0104] 5.1, Database file backup module

[0105] For example, the database uses a SQL Server database. The database file backup module provides a file backup function for the SQL Server database, supports conventional overall backup and incremental backup, and supports automatic backup and manual backup. The backed-up files can be automatically named according to the backup date and number of times, and the backup information is registered in the database and associated with the backup file.

[0106] Among them, the database backup setting requires setting the data save path.

[0107] 5.2, Backup file management module

[0108] By querying the database, all backup records are displayed in a list format, providing three database file management operation functions: conditional query, sorting, and deletion.

[0109] 5.3, Database file recovery module

[0110] By querying the database and specifying the backup file, it provides database recovery operations and supports the recovery of the entire backup file and the recovery of the incremental backup file.

[0111] like Figure 6 FIG. 1 is a schematic diagram of a process of executing data management by a database management subsystem in an embodiment of the present invention.

[0112] 6. System Management Subsystem

[0113] 6.1, System Information Configuration Module

[0114] (1) Driver information configuration

[0115] It is used to configure the number, 3D model, and data source association of the monitored object. For unconfigured monitored objects, the system automatically uses the default model based on the object attributes, such as the fixed-wing aircraft white model and the flying bird white model.

[0116] (2) Visualization parameter configuration

[0117] Configure the default flight parameter data in the two-dimensional and three-dimensional situation display. The configuration content of the flight parameter data includes display type, track color, visible and invisible items, sign content and background color.

[0118] (3) Data backup configuration

[0119] Configure the trigger conditions, backup mode, and backup cycle for automatic database backup.

[0120] 6.2, User login and management module

[0121] (1) User login

[0122] Verify the user login information, determine the correctness of the user name and password, and return the user rights if the user is a legitimate user. User rights are divided into system administrators and system operators. Only administrator-level users have the right to manage users.

[0123] (2) User Information Management

[0124] User management includes adding, deleting and modifying users. To ensure the security of the system, user permissions are divided into system administrators and system operators. Only administrator-level users can add, delete and modify user information.

[0125] 6.3, Logging Module

[0126] Record the operation log of the display platform during operation. The operation log is automatically numbered according to the start date of the display platform, and records of each operation are saved in the form of TXT text files. The operation log records important operation event information, key process information of the display platform operation, and error prompt information.

[0127] Although the embodiments disclosed in the present invention are as above, the contents are only embodiments adopted to facilitate understanding of the present invention and are not intended to limit the present invention. Any technician in the field to which the present invention belongs can make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in the present invention, but the patent protection scope of the present invention shall still be subject to the scope defined in the attached claims.

Claims

1. A low, small and slow situation information display platform, characterized in that: include: A display, a workstation, a server, and a plurality of subsystems running on the workstation, wherein the plurality of subsystems include: a data receiving and processing subsystem, a two-dimensional situation display subsystem, a three-dimensional situation display subsystem, a situation data playback subsystem, a database management subsystem, and a system management subsystem; The workstation is used to receive the comprehensive data packets of the test field obtained by each sensing device through monitoring the test field; the test field situation data is obtained after the comprehensive data packets of the test field are analyzed and preprocessed by the data receiving and processing subsystem, and the two-dimensional situation display subsystem and the three-dimensional situation display subsystem respectively display the two-dimensional and three-dimensional situation on the display according to the test field situation data; The server is used to store the test field situation data obtained after parsing and preprocessing the test field comprehensive data packet received by the workstation in its database, and to back up, manage and restore the data stored in the database through the database management subsystem, and to play back the situation data stored in the database on the display through the situation data playback subsystem.

2. The low, small and slow situation information display platform according to claim 1 is characterized in that: The data receiving and processing subsystem is used to obtain the comprehensive data packet of the test field received by the workstation from each sensing device in real time. On the one hand, it sends it to the server for data file backup. On the other hand, the data receiving and processing subsystem parses the comprehensive data packet of the test field to parse out each monitored object and its status information and event information, and obtains the test field situation data after preprocessing, which are sent to the two-dimensional situation display subsystem and the three-dimensional situation display subsystem respectively to display the position information, posture information and event information of the received data; the test field situation data is also sent to the server for data storage.

3. The low, small and slow situation information display platform according to claim 2 is characterized in that: The two-dimensional situation display subsystem is used to present the situation information of the test field and its surroundings in the form of a two-dimensional electronic map based on the test field situation data, and to display the geographical location and flight trajectory of aircraft and foreign flying objects in the test field in real time, and to load place name information, road information, river information and canal information in layers; the two-dimensional situation display subsystem supports two-dimensional electronic map display, sign drive display, electronic sign display, trajectory track display, and supports two-dimensional human-computer interaction function.

4. The low, small and slow situation information display platform according to claim 3 is characterized in that: The functions of various display forms in the two-dimensional display of low, small and slow targets are as follows: A two-dimensional real-time situational geographic information space is established through two-dimensional electronic map display to load the two-dimensional electronic map data of the test site and its surroundings, and store digital topographic maps, digital elevation (DEM) and GIS data of geographic features in layers; through the sign-driven display, a real-time data-driven display of two-dimensional entity signs of low, small and slow targets on the electronic map is provided; By adding auxiliary display for low, small and slow targets through electronic signage display, the information display capability is expanded, and the expanded information display includes: adding the characteristics, attributes and flight parameters of low, small and slow targets; And display ground targets and air flight trajectories through trajectory lines of different colors to distinguish the spatial status of ground targets and air flight trajectories.

5. The low, small and slow situation information display platform according to claim 2 is characterized in that: The three-dimensional situation display subsystem is used to present the situation information of the test site and its surroundings in the form of a digital globe, using the same driving data source as the two-dimensional situation display. On the basis of the situation information display of the two-dimensional situation display subsystem, according to satellite image data and digital elevation data, a three-dimensional geographical environment within a certain range with the test site as the center is automatically generated, and static targets within the test site are deployed for decoration and supplement. Then, the same driving data source as the two-dimensional situation display is used to display the geographical location and flight trajectory of aircraft and foreign flying objects in the test site in real time in the generated three-dimensional geographical environment, and place name information, road information, river information and canal information are loaded in layers; the three-dimensional situation display subsystem supports digital globe display, model-driven display, electronic sign display, trajectory display, and supports three-dimensional human-computer interaction functions.

6. The low, small and slow situation information display platform according to claim 5 is characterized in that: The functions of various display forms in the three-dimensional display of low, small and slow targets are as follows: Through the digital globe display, based on the dynamic loading of elevation data and satellite image data around the test site, a three-dimensional geographic environment is generated in real time, thereby realizing the switching, loading and real-time rendering output of multi-level high-precision geographic image data; through the binding of model-driven display and database, the monitoring objects in the test site and surrounding airspace are presented dynamically in real time, that is, low, small and slow targets are displayed in real time; auxiliary displays are added to the monitored objects in the form of electronic signs, thereby expanding the information display capability; and the trajectory and track display is used to display the movement trajectory or track of ground targets and air targets.

7. The low, small and slow situation information display platform according to any one of claims 1 to 6, characterized in that: The situation data playback subsystem is used to play back the situation information by calling the database. Before the playback, the user specifies the time period and the monitored object to be played back. The situation data playback subsystem automatically reads the situation information from the database according to the time period and monitored object specified by the user, and realizes the start, pause, stop, and speed selection control through user operations during the playback process.

8. The low, small and slow situation information display platform according to any one of claims 1 to 6, characterized in that: The database management subsystem is used to provide management functions for the database. The data in the database comes from the comprehensive data packet of the test site received by the data receiving and processing subsystem, as well as the test site situation data obtained after parsing and preprocessing; wherein, the management functions of the database management subsystem include database backup, backup file management and recovery of designated backup files, and supports automatic backup.

9. The low, small and slow situation information display platform according to any one of claims 1 to 6, characterized in that: The multiple subsystems running on the workstation also include: system management subsystem; The system management subsystem is used to provide parameter configuration functions for the operation of the low, small and slow situation information display platform, including: monitoring object drive information configuration, visual display parameter configuration and data backup information configuration.

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