Construction equipment real-time interconnection method based on GIS platform

Abstract

The invention discloses a construction equipment real-time interconnection method based on a GIS platform, and the method comprises the steps: carrying out the statistics of the interaction times of a construction equipment model on the GIS platform, an engineering entity model, and an activity boundary region electronic fence, and achieving the automatic early warning of shutdown equipment and construction equipment of an over-red line activity. According to the three-dimensional visualization, construction equipment is searched and positioned according to equipment models, equipment types, license plate information, construction teams and the like, and historical tracks of the construction equipment are inquired. All-domain real-time three-dimensional visualization of the construction site is realized, and project management and control can be enhanced.

Description

Technical Field

[0001] The present invention relates to a method for real-time interconnection between a real end and a virtual end of a construction equipment, and in particular to a method for real-time interconnection between construction equipment based on a GIS platform. Background Art

[0002] At present, icons are generally used to replace construction equipment to realize the interconnection between construction equipment and the site, that is, the icons update the relevant attribute information on the two-dimensional plane as the construction equipment moves on the site. The main shortcomings are as follows: (1) The visual quality is poor, and it is impossible to overlap with the three-dimensional models such as engineering entities and oblique photography in a 1:1 ratio to achieve full-domain three-dimensional visualization and control of the construction site. (2) It only records the location, trajectory, speed and other information of the construction equipment, and is not deep enough in the research of project management applications. Summary of the invention

[0003] In response to the above problems, Beidou positioning terminals are installed on on-site construction equipment, various types of construction equipment models are established, and a GIS platform is released. Beidou positioning terminals send basic information such as the location, speed, mileage, elevation, and operating time of the equipment to the GIS platform in real time. The platform obtains the latest location information of all equipment, including longitude, latitude, altitude, etc., loads different construction equipment models, and achieves the effect of continuous movement of construction equipment models. Together with waterway excavation, waterway geology, storage yards, and general construction plans, a project overview is formed to achieve a full-domain real-time three-dimensional visualization of the construction site.

[0004] By counting the number of interactions between the construction equipment model and the engineering entity model and the electronic fence in the activity boundary area on the GIS platform, automatic early warning of suspended equipment and construction equipment that exceeds the red line can be achieved. Three-dimensional visualization can be used to search and locate construction equipment and query the historical trajectory of construction equipment by equipment model, equipment type, license plate information, construction team, etc.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The present invention provides a real-time interconnection method for construction equipment based on a GIS platform, comprising the following steps:

[0007] S1. Install Beidou positioning terminals on all construction equipment on site and obtain equipment information in real time;

[0008] S2. Use equipment drawings and on-site photos to build a three-dimensional model of construction equipment;

[0009] S3, publishing the three-dimensional model of the construction equipment on the GIS platform;

[0010] S4, synchronizing the latest basic information of the construction equipment acquired in real time to the GIS platform;

[0011] S5. Refresh the latest basic information of the construction equipment at a fixed frequency;

[0012] S6. Draw a historical track of the equipment according to the historical position of the construction equipment;

[0013] S7, searching and locating the construction equipment on the GIS platform;

[0014] S8. Equipment that automatically warns of shutdowns and activities that exceed the red line.

[0015] Furthermore, in step S1, the device information includes but is not limited to the location, speed, mileage, and operating time of the device.

[0016] Furthermore, the construction equipment includes but is not limited to a grab dredger, a backhoe dredger, a mud barge, an excavator, a dump truck, and a bulldozer.

[0017] Furthermore, in step S3, the three-dimensional model of the construction equipment is lightweighted before being released on the GIS platform.

[0018] Furthermore, the step S4 specifically includes:

[0019] S41. Use a timer to synchronize the latest basic information of the Beidou positioning terminal device to the GIS platform;

[0020] S41, access the data synchronized to the GIS platform, and the GIS platform regularly obtains the latest basic information of all construction equipment, including marking the accessed data to prevent repeated access;

[0021] S42, manually supplementing missing data and adjusting erroneous data to form a basic equipment information table of the platform;

[0022] S43. When the platform is started, it obtains the last position information of all equipment, including the longitude, latitude and altitude of the vehicle, loads different three-dimensional models of the equipment according to the equipment type, loads the equipment into the platform, and forms a project overview view of the platform together with its channel excavation model, channel geological model, yard model, oblique photography model, etc.

[0023] Furthermore, step S5 includes: the GIS platform continuously obtains the latest location information of all devices according to the refresh rate set by the background server, compares the last device location information saved by the platform, and if there is data update, updates the location information corresponding to the device, and refreshes the real-time location and information display of the device on the overview view, so as to realize the continuous movement of the device on the map and model to reflect the real-time location of the device.

[0024] Furthermore, the step S6 specifically includes:

[0025] S61. The platform provides a function for querying the historical three-dimensional trajectory of a device, and uses the unique identifier of the device to query the historical data of the device; the server of the platform retrieves the locally stored location data according to the provided device identifier. If the time span of the retrieval exceeds the time range of the platform service, it will automatically pull the historical location data from the Beidou positioning terminal to supplement the platform, and compile an algorithm to remove duplicate and invalid historical data, and return all valid historical location information of the device; after the platform obtains all the historical trajectory data of a certain device, it will sort all the historical location data in chronological order, and then draw a three-dimensional trajectory line based on all the historical location data;

[0026] S62. When drawing the historical three-dimensional trajectory line of the device, the playback speed and playback effect can be specified; first, find the device whose historical trajectory needs to be played in the project overview view, then generate a list of all historical trajectory points waiting to be drawn according to time, load the time and trajectory points into the project overview view, and form a time and trajectory point position relationship group; then connect all trajectories to generate a dynamic drawing line, start the time component, continuously adjust the device position according to time and form a trajectory line, and display the historical trajectory of the selected device; at the same time, set the playback speed to control the movement speed of the device on the historical trajectory curve, and you can take a specific follow-up device movement or use a bird's-eye view to view the device's trajectory movement.

[0027] Furthermore, it is characterized in that in step S7, the construction equipment can be searched and located by selecting the license plate number, equipment type, and construction team.

[0028] Furthermore, the step S8 specifically includes:

[0029] S81. By counting the operating time of all construction equipment, automatically filter out the construction equipment that has stopped construction for more than a certain period of time, and strengthen project management and control;

[0030] S82. On the GIS platform, set up an electronic fence around the construction red line to automatically count the construction equipment that exceeds the construction red line and reduce potential safety hazards in the project.

[0031] The present invention has the following beneficial effects:

[0032] (1) By overlaying the 3D model of construction equipment with the engineering entity model, oblique photography model, etc. at a 1:1 ratio and publishing them to the GIS platform, a full-domain real-time 3D visualization of the construction site is achieved. This breaks the limitations of traditional 2D icon display and provides project managers with an immersive and intuitive perspective of the construction site. Managers can clearly understand the spatial position relationship between construction equipment and various parts of the project on the platform, optimize construction layout and equipment scheduling strategies, avoid spatial cognitive bias and decision-making errors caused by 2D perspective, and greatly improve the accuracy and foresight of project management. Managers can monitor the equipment operation status and construction progress in real time, and conduct dynamic and all-round monitoring of complex construction processes and multi-equipment collaborative operations.

[0033] (2) It supports multi-dimensional search and positioning of construction equipment and query of historical tracks by equipment model, type, license plate information, construction team, etc., to realize automatic warning of suspended equipment and construction equipment that exceeds the red line. It supports 3D visualization to search and position construction equipment and query the historical tracks of construction equipment by equipment model, equipment type, license plate information, construction team, etc. Managers can quickly locate the location of specific equipment, trace back its operation track and historical operation data, deeply analyze the efficiency of equipment use and the rationality of operation path, provide data support for the formulation of equipment maintenance plans and the optimization of construction processes, improve the degree of refinement of equipment management and the scientific nature of construction decisions, and realize precise control of equipment throughout its life cycle and efficient allocation of construction resources.

[0034] (3) Based on the GIS platform, statistics are collected on the number of interactions between the construction equipment model and the engineering entity model and the electronic fence, so as to realize automatic early warning of the stopped equipment and the equipment that exceeds the red line. This function builds a smart defense line for the safety management of the construction site, especially in high-risk projects, accurately identifying excavators, tower cranes and other equipment that exceed the construction red line, and promptly stopping dangerous operations to reduce the probability of safety accidents; rapid detection of stopped equipment helps managers to accurately troubleshoot faults and allocate resources, reduce equipment idle losses, improve equipment utilization and construction continuity, and is applicable to any project where the real and virtual ends of construction equipment are interconnected, ensuring the achievement of the dual goals of project economic benefits and construction safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic diagram of a method for real-time interconnection of construction equipment based on a GIS platform according to the present invention; DETAILED DESCRIPTION

[0036] To make the technical solutions and advantages of the present invention more clear, the present invention and its beneficial effects will be described in further detail below in conjunction with specific implementation methods and accompanying drawings, but the implementation methods of the present invention are not limited thereto.

[0037] In the present invention, "at least one" means one or more, and "more than one" means two or more. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, "at least one of a, b, or c", or "at least one of a, b, and c", can all mean: a, b, c, ab (i.e., a and b), ac, bc, or abc, where a, b, c can be single or multiple.

[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0039] Example: Application of interconnected management of construction equipment for the Pinglu Canal Waterway Section 1

[0040] The Pinglu Canal Channel 1 is 19,723 meters long, with starting and ending pile numbers from K0+000m to K19+723m. The construction content includes channel excavation, revetment laying, integrated water service area, anchorage, 11 external abandoned earthwork storage sites and other projects. Among them, the channel excavation earthwork of 21.59 million m3 is the main project of this project. The main construction difficulties are complex geology, large engineering volume, wide construction area, many equipment, and difficult management. During the peak construction period, 600 types of construction equipment such as grab dredgers, mud barges, excavators, and dump trucks were invested. During the construction process, although a lot of manpower and material resources were invested in tracking, supervising and managing construction equipment, the results were minimal.

[0041] In response to the above problems, all construction equipment on site are equipped with Beidou positioning terminals, and three-dimensional models of all construction equipment are established. Together with the waterway excavation model, waterway geological model, yard model, and oblique photography model, they are published on the GIS platform at a 1:1 ratio. By counting the number of interactions between the construction equipment model and the engineering entity model and the electronic fence in the activity boundary area on the GIS platform, automatic warning of shutdown equipment and construction equipment that exceeds the red line is achieved. Real-time three-dimensional visualization searches and locates construction equipment by equipment type, license plate information, construction team, etc., and inquires about the historical trajectory of construction equipment. Safety hazards are reduced and project management and control are strengthened.

[0042] To achieve the above purpose, see Figure 1 , the technical solution adopted by the present invention is as follows:

[0043] Equipment terminal installation (S1): Beidou positioning terminals are installed on on-site construction equipment, including grab dredgers, backhoe dredgers, mud barges, excavators, dump trucks, bulldozers and other equipment on the construction site, to collect real-time information such as the equipment's location, speed, mileage, and operating time.

[0044] As the main force of channel dredging, the grab dredger has a positioning terminal that is specially waterproof, anti-seismic, and anti-electromagnetic interference treated, and is firmly installed near the core control cabin of the ship to ensure stable collection of key information such as equipment position, speed, mileage, and operating time in harsh operating environments. The positioning accuracy is controlled at the centimeter level, and the data update frequency is as high as once per second, which provides accurate navigation for channel excavation. The positioning terminal of the mud barge is scientifically installed in a balanced position based on the dynamic characteristics of the hull structure and the distribution of the center of gravity of the cargo loading, ensuring accurate and reliable data collection when the load is variable, transmitting the navigation trajectory and loading and unloading operation status information in real time, and optimizing earthwork transportation scheduling. The excavator positioning terminal is cleverly integrated into the equipment intelligent control system, and cooperates with the hydraulic sensor of the working device to accurately feedback the excavation action posture, excavation depth, and material loading information, which helps to deeply analyze the construction efficiency and optimize the operation process. The dump truck positioning system is integrated with the on-board weighing device and the driving recorder to fully monitor the transportation weight, mileage, fuel consumption data, and cargo loading and unloading location time, injecting intelligent kinetic energy into material transfer management. The bulldozer positioning terminal is linked with the bulldozer blade angle sensor and engine condition monitoring module to present the bulldozer operation force, range and equipment health status in real time, thereby improving the efficiency of site leveling operations and the accuracy of equipment maintenance.

[0045] 3D model construction (S2): Establish 3D models of construction equipment; specifically, using equipment drawings and on-site photos, establish 3D models of various types of construction equipment such as grab dredgers, backhoe dredgers, mud barges, excavators, dump trucks, bulldozers, etc. With high-precision equipment drawings and multi-angle on-site photos, advanced computer-aided design (CAD) and 3D modeling software (such as 3ds Max, Blender combined with geographic information system (GIS) plug-ins) are used to tailor 3D models for various types of construction equipment. The grab dredger model is accurately restored from the hull structure to the complex mechanical transmission system. The grab opening and closing action simulation is calibrated according to the hydraulic system mechanical model and actual working condition data, and the excavation force and material grabbing effect are realistically presented; the excavation trajectory of the backhoe dredger model bucket is optimized according to the engineering geological characteristics and construction process requirements, and the bucket capacity, excavation radius, unloading height and other parameters are accurately adjustable; the mud barge model is designed according to the hull fluid mechanics and loading characteristics, and accurately simulates the draft, navigation stability and unloading process; the excavator model working device joint movement follows the mechanical kinematics principle to achieve smooth and natural excavation, rotation and lifting movements, and accurate force feedback; the dump truck model car lifting mechanism simulates the unloading process according to the hydraulic transmission characteristics, and the vehicle suspension system, tire wear and driving bumps are realistic; the bulldozer model bulldozer cutting edge wear deformation, bulldozer resistance changes and engine power distribution dynamic simulation to ensure that the model truthfully reflects the actual performance and operating status of the equipment, the detail accuracy of each model reaches the millimeter level, and the material texture is more than 95% consistent with the real object.

[0046] Model publishing and optimization (S3): Specifically, before publishing the model to the GIS platform, the construction equipment model is lightweight. The topology simplification algorithm is used to reshape the model geometry, reducing the number of redundant facets by 60%-80%. At the same time, texture compression technology (such as DXT, ETC algorithm) is used to optimize the material texture, compressing the texture data volume by 70%-90% while maintaining the visual effect. The model level of detail (LOD) parameters are set in stages according to the importance of the equipment and the attention of the operation scene. The high-precision model of the core equipment (such as large dredger) is loaded in the near view, and the low-precision model of the secondary equipment (such as small auxiliary machinery) is displayed in the far view. After this optimization, the model loading speed soars by 3-5 times, and the rendering frame rate is stably maintained at more than 60fps, ensuring that when the massive equipment model is integrated with the multi-dimensional geographic data (topography, geology, hydrology, etc.) of the waterway engineering, the interactive operation of the GIS platform is smooth, and the real-time rendering response delay of large-scale scenes is controlled within 500 milliseconds, providing an efficient visualization environment for construction management decisions.

[0047] Information synchronization management (S4): The latest basic information of construction equipment is synchronized to the GIS platform; the latest basic information of Beidou positioning terminal equipment is synchronized to the GIS platform using a timer. Access the data synchronized to the GIS platform, and the GIS platform obtains the latest basic information of all construction equipment at a fixed time. Identify the accessed data to prevent repeated access. The platform's equipment basic information table is formed by manually supplementing missing data and adjusting erroneous data. When the platform is started, it obtains the last location information of all equipment, including the longitude, latitude, and altitude of the vehicle, loads different equipment 3D models according to the equipment type, loads the equipment into the platform, and forms a project overview of the platform together with its waterway excavation model, waterway geological model, yard model, oblique photography model, etc. Specifically, the Beidou positioning terminal equipment information synchronization process is driven by a high-precision timer (timing accuracy reaches microseconds), and the synchronization interval is set differently according to the busyness of the equipment operation and the sensitivity of data changes (10 seconds to 1 minute for busy equipment, 5 minutes to 15 minutes for relatively stable equipment). The information is stably transmitted to the GIS platform in the form of encrypted datagrams via wireless networks (such as 4G / 5G converged networks). The receiving end of the platform uses a verification algorithm (such as CRC, MD5 checksum) to compare with the unique identifier to identify and immediately filter out duplicate access data to ensure data freshness and integrity. In the case of missing or erroneous data, the professional data maintenance team will prioritize filling in key operating parameters (such as core indicators of the power system and status values ​​of key operating components) based on the equipment technical manual, construction process standards and on-site environmental monitoring data, and use data mining algorithms and expert experience knowledge bases, combined with historical equipment operation trends, data characteristics of the same type of equipment group and real-time working condition change clues, to intelligently correct abnormal data points. Finally, a hierarchical and logically rigorous equipment basic information table is constructed based on equipment type, construction team, operation area and timestamp, providing a solid data foundation for subsequent construction management. The moment the platform is started, based on the equipment's last positioning longitude and latitude, altitude and attitude angle data, the corresponding three-dimensional model is loaded with the help of spatial index algorithm and model library intelligent matching, and seamlessly integrated with the high-precision digital terrain model of waterway excavation (resolution up to 0.5 meters), fine geological structure stratification model (drilling data analysis accuracy to centimeter level), real-time distribution model of yard materials (dynamically updated according to material category, inventory, and warehousing in and out), and oblique photography real-life model (ground resolution better than 5 cm), to build a panoramic view of the project overview that blends the real and the virtual and rich in details. The manager feels as if he is in the core command room of the construction site and has a comprehensive grasp of the overall situation.

[0048] Data refresh mechanism (S5): The GIS platform continuously obtains the latest location information of all devices according to the refresh rate set by the background server, and compares it with the last device location information saved by the platform. If there is data update, the corresponding location information of the device is updated, and the real-time location and information display of the device in the overview view are refreshed at the same time, so as to achieve the effect of continuous movement of the device on the map and model to reflect the real-time location of the device. Specifically, the background server of the GIS platform intelligently adjusts the refresh rate parameters according to the dynamic priority of the equipment and the key nodes of the construction task (core equipment and key construction area equipment refresh every 5 seconds to 10 seconds, and general equipment refreshes every 30 seconds to 1 minute). When receiving data, an efficient spatial analysis algorithm is used to compare the new and old location data. If the displacement of the equipment exceeds the preset threshold (set to 0.3 meters to 2 meters depending on the equipment type) or the fluctuation of the status parameters exceeds the normal range (such as sudden changes in speed or workload), the model space coordinates and attribute information display are updated immediately. By using advanced graphics rendering engines (such as Unity3D and Unreal Engine geographic information modules) to drive the model to update its position in maps and engineering scenes with smooth transition animation effects, it can accurately reproduce the real-time motion trajectory of the equipment and the evolution of the operating status, allowing managers to keenly capture the dynamic changes of the equipment and make accurate decisions and efficient commands in complex construction situations.

[0049] Historical trajectory drawing (S6): Draw the historical trajectory of the device according to the historical position of the device; including that the platform provides the function of querying the historical three-dimensional trajectory of the device, and queries the historical data of the device with the unique identifier of the device. The server of the platform will retrieve the locally saved location data according to the provided device identifier. If the time span of the retrieval exceeds the time range of the platform service, it will automatically pull the historical location data from the Beidou positioning terminal to supplement the platform, and compile an algorithm to remove duplicate and invalid historical data, and return all valid historical location information of the device. After the platform obtains all the historical trajectory data of a certain device, it will sort all the historical location data in chronological order, and then draw a three-dimensional trajectory line according to all the historical location data. When drawing the historical three-dimensional trajectory line of the device, you can specify the playback speed and playback effect. First, find the device whose historical trajectory needs to be played on the project overview view, and then generate a list of all historical trajectory points waiting to be drawn according to time, load the time and trajectory points into the project overview view, and form a time and trajectory point position relationship group. Then connect all the trajectories to generate a dynamic drawing line, start the time component, continuously adjust the device position according to time and form a trajectory line, and display the historical trajectory of the selected device. By setting the playback speed, you can control the speed at which the device moves on the historical trajectory curve. You can follow the device movement or view the device's trajectory movement from a bird's-eye view.

[0050] Equipment search and positioning (S7): On the GIS platform, construction equipment can be searched and positioned by selecting license plate number, equipment type, and construction team. Specifically, in the GIS platform search interface, input the license plate number to locate the target equipment individual through precise indexing, and the license plate recognition algorithm has an accuracy rate of over 99%; when filtering by equipment type, the system quickly filters the target equipment cluster according to equipment taxonomy and engineering application function labels (such as dredging equipment, excavation equipment, and transportation equipment subcategories); filtering by construction team, relying on the project personnel organizational structure and equipment allocation management database, one-click positioning of all equipment distribution positions and operating status of the team. Combined with map zoom, translation, rotation interactive operations and spatial query tools (such as rectangular box selection, circular range query, polygonal area search), managers can accurately lock the target equipment in the vast ocean of engineering data. Even in the face of densely distributed equipment and complex construction scenes, the search response time is controlled within 1 second, providing accurate and efficient navigation guidance for equipment scheduling, maintenance and repair, and resource coordination and allocation, greatly improving the agility of construction management and scientific decision-making.

[0051] Intelligent early warning and control (S8): By counting the operating time of all construction equipment, construction equipment that has stopped construction for more than a certain period of time is automatically screened out to strengthen project management and control. On the GIS platform, an electronic fence for the construction red line is set up to automatically count the construction equipment that exceeds the construction red line to reduce project safety hazards. Specifically, the system background statistical analysis module monitors the equipment operation time data in real time, and customizes the shutdown threshold for each type of equipment according to the equipment technical specifications and construction process specifications (such as 40 minutes for large dredgers, 60 minutes for medium-sized excavators, and 90 minutes for dump trucks). Once the equipment operation is interrupted beyond the threshold, the system immediately triggers sound and light and pop-up alarms, and pushes detailed equipment information and location coordinates to the management personnel's mobile terminal and the large screen of the control center. The construction red line electronic fence is accurately drawn on the GIS platform according to the engineering design drawings and safety specifications and standards. With the help of real-time spatial monitoring algorithms (such as the ray method and the area intersection method), the spatial relationship between the equipment position and the fence is monitored every second. The alarm is triggered instantly when the equipment touches or crosses the red line, and the illegal equipment number, cross-border location, cross-border time and direction information are pushed to help managers stop illegal operations in time, nip safety hazards in the bud, build a solid safety line for the construction of the Pinglu Canal Channel Section 1, and ensure that the project construction is efficiently promoted on a safe and stable track.

[0052] The above are only exemplary embodiments of the present disclosure, and the scope of the present disclosure cannot be limited thereto. That is, any equivalent changes and modifications made according to the teachings of the present disclosure are still within the scope of the present disclosure. After considering the disclosure of the specification and the truth of practice, it will be easy for those skilled in the art to think of other embodiments of the present disclosure. This application is intended to cover any variation, use or adaptive change of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the technical field that are not recorded in the present disclosure.

Claims

1. A real-time interconnection method for construction equipment based on GIS platform, characterized in that: The steps include: S1. Install Beidou positioning terminals on all construction equipment on site and obtain equipment information in real time; S2. Use equipment drawings and on-site photos to build a three-dimensional model of construction equipment; S3, publishing the three-dimensional model of the construction equipment on the GIS platform; S4, synchronizing the latest basic information of the construction equipment acquired in real time to the GIS platform; S5. Refresh the latest basic information of the construction equipment at a fixed frequency; S6. Draw a historical track of the equipment according to the historical position of the construction equipment; S7, searching and locating the construction equipment on the GIS platform; S8. Equipment that automatically warns of shutdowns and activities that exceed the red line.

2. The method for real-time interconnection of construction equipment based on GIS platform according to claim 1 is characterized in that: In step S1, the device information includes but is not limited to the location, speed, mileage, and operating time of the device.

3. The method for real-time interconnection of construction equipment based on GIS platform according to claim 1 is characterized in that: The construction equipment includes but is not limited to a grab dredger, a backhoe dredger, a mud barge, an excavator, a dump truck, and a bulldozer.

4. The method for real-time interconnection of construction equipment based on GIS platform according to claim 1 is characterized in that: In step S3, the three-dimensional model of the construction equipment is first lightweighted before being published on the GIS platform.

5. The method for real-time interconnection of construction equipment based on GIS platform according to claim 1 is characterized in that: The step S4 specifically includes: S41. Use a timer to synchronize the latest basic information of the Beidou positioning terminal device to the GIS platform; S41. Access the data synchronized to the GIS platform. The GIS platform obtains the latest basic information of all construction equipment regularly and marks the accessed data to prevent repeated access. S42, manually supplementing missing data and adjusting erroneous data to form a basic equipment information table of the platform; S43. When the platform is started, it obtains the last position information of all equipment, including the longitude, latitude and altitude of the vehicle, loads different three-dimensional models of the equipment according to the equipment type, loads the equipment into the platform, and forms a project overview view of the platform together with its channel excavation model, channel geological model, yard model, oblique photography model, etc.

6. The method for real-time interconnection of construction equipment based on GIS platform according to claim 1 is characterized in that: The step S5 includes: the GIS platform continuously obtains the latest location information of all devices according to the refresh rate set by the background server, compares the last device location information saved by the platform, and updates the location information corresponding to the device if there is data update, and refreshes the real-time location and information display of the device on the overview view at the same time, so as to achieve the effect of continuous movement of the device on the map and model to reflect the real-time location of the device.

7. The method for real-time interconnection of construction equipment based on a GIS platform according to claim 1, characterized in that: The step S6 specifically includes: S61. The platform provides a function for querying the historical three-dimensional trajectory of a device, and queries the historical data of the device with the unique identifier of the device; the server of the platform retrieves the locally stored location data according to the provided device identifier. If the time span of the retrieval exceeds the time range of the platform service, it will automatically pull the historical location data from the Beidou positioning terminal to supplement the platform, and compile an algorithm to remove duplicate and invalid historical data, and return all valid historical location information of the device; after the platform obtains all the historical trajectory data of a certain device, it sorts all the historical location data in chronological order, and then draws a three-dimensional trajectory line based on all the historical location data; S62. When drawing the historical three-dimensional trajectory line of the device, the playback speed and playback effect can be specified; first, find the device whose historical trajectory needs to be played in the project overview view, then generate a list of all historical trajectory points waiting to be drawn according to time, load the time and trajectory points into the project overview view, and form a time and trajectory point position relationship group; then connect all trajectories to generate a dynamic drawing line, start the time component, continuously adjust the device position according to time and form a trajectory line, and display the historical trajectory of the selected device; at the same time, set the playback speed to control the movement speed of the device on the historical trajectory curve, and you can take a specific follow-up device movement or use a bird's-eye view to view the device's trajectory movement.

8. The method for real-time interconnection of construction equipment based on a GIS platform according to claim 1, characterized in that: In step S7, the construction equipment can be searched and located by selecting the license plate number, equipment type, and construction team.

9. The method for real-time interconnection of construction equipment based on a GIS platform according to claim 1, characterized in that: The step S8 specifically includes: S81. By counting the operating time of all construction equipment, automatically filter out the construction equipment that has stopped construction for more than a certain period of time, and strengthen project management and control; S82. On the GIS platform, set up an electronic fence around the construction red line to automatically count the construction equipment that exceeds the construction red line and reduce potential safety hazards in the project.

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