Road construction management system and method based on GIS and BIM

Abstract

The invention provides a road construction management system and method based on GIS and BIM, the road construction management system comprises a display device, a central server, distributed controllers, a monitoring unit and an unmanned aerial vehicle inspection module, and the central server is in communication connection with the display device, the unmanned aerial vehicle inspection module and the distributed controllers. A construction site is divided into a plurality of areas, each area is provided with a distributed controller and a plurality of monitoring units, the distributed controllers are respectively in communication connection with the plurality of monitoring units, and a central server determines key areas and displays and monitors the construction site according to the key areas. According to the method, the BIM data is slightly and locally displayed in the GIS model according to the personnel distribution condition, the computing resources occupied by display processing are reduced while the display requirement is met, and moreover, the monitoring image is automatically identified and processed, so that the workload of management personnel is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of construction site management, and in particular to a road construction management system and method based on GIS and BIM. Background Art

[0002] There are a large number of construction workers and construction machinery in road construction sites. The construction environment is complex and site management needs to ensure the safety, quality and progress of construction. This makes site management challenging. Traditional manual management methods cannot fully control the situation on the site, nor can they control the situation on the site in real time, and cannot meet current site management needs.

[0003] In order to meet the construction management demands in the new era, the concept of smart construction sites has emerged. Smart construction sites integrate digital technologies such as GIS and BIM to achieve an integrated closed-loop construction site management and fully empower construction site operations and construction management. However, there are certain differences between GIS technology and BIM technology in terms of construction process and data structure. How to better integrate the two in construction management is a hot topic of research today. Summary of the invention

[0004] In order to solve the technical problem of how to better integrate GIS technology and BIM technology in construction management, the road construction management system based on GIS and BIM proposed in the present invention includes a display device, a central server, a distributed controller, a monitoring unit and a drone inspection module, and the central server is respectively communicated with the display device, the drone inspection module and multiple distributed controllers; The construction site is divided into multiple areas, each area is provided with a distributed controller and multiple monitoring units, and the distributed controller is respectively connected to the multiple monitoring units for communication; The display device is used to display the GIS model superimposed with BIM data, and to display prompt information from the central server to the management personnel as needed; The central server determines the key areas, displays and monitors the construction site according to the key areas, and controls the drone inspection module to perform automated inspection of the project progress.

[0005] Preferably, the monitoring unit includes a visible light camera and an infrared camera, and the visible light camera and the infrared camera are arranged on a rotating base and can rotate within a horizontal range of 360°.

[0006] Preferably, the multiple monitoring units include a patrol monitoring unit arranged at the center of the area and configuration monitoring units evenly arranged at other locations in the area. The patrol monitoring unit patrols the area according to a set period, and turns on the visible light camera and the infrared camera at the same time during the patrol process. The configuration monitoring unit can monitor in a specific direction under the control of a distributed controller, and turns on the visible light camera during the monitoring process.

[0007] Preferably, the functions of the distributed controller include routine area inspections, in which the inspection and monitoring unit rotates 360°, captures visible light images and infrared images in the area, sends the infrared images to the central server, and analyzes whether there are security risks in the visible light images based on the local security recognition model built into the distributed controller. When there are security risks, an alarm is sent to the central server.

[0008] Preferably, the functions of the distributed controller include key area monitoring, controlling the monitoring direction of the configuration monitoring unit according to instructions from the central server, and sending the captured visible light images to the central server.

[0009] Preferably, the drone inspection module includes a flight control unit and multiple drones.

[0010] Based on the above road construction management system, the road construction management method based on GIS and BIM proposed by the present invention includes the following steps: S1, the drone inspection module dispatches drones to collect real-life data around the construction site and builds a GIS model in combination with satellite data; S2. The central server determines the key areas based on the infrared images taken by the inspection and monitoring units in each area; S3. Digitally display the on-site construction site according to key areas and conduct key monitoring on key areas.

[0011] Preferably, in S2, the process of determining the key areas is to determine the locations of personnel based on infrared images taken by the inspection and monitoring units in each area, divide the personnel into multiple groups using the K-means algorithm, and extend the area occupied by the personnel groups outward by a set distance to form key areas.

[0012] Preferably, in S3, the specific process of digitally displaying the on-site construction site according to the key areas is to convert the BIM data into an IFC model of structured data, the GIS data adopts the CityGML format, the CityGML format includes the CityGMLLODO-LOD3 model, for the BIM data involved in the key areas, the corresponding component information is extracted from the IFC model, the corresponding CityGML LODO-LOD3 model is constructed, and the detailed BIM data display is performed in the GIS model, and for the BIM data not involved in the key areas, the corresponding component information is extracted from the IFC model, and the corresponding CityGML LODO-LOD1 model is constructed.

[0013] Preferably, in S3, the specific process of focusing on monitoring the key areas is to determine the configuration monitoring units involved in the key areas, issue instructions to the corresponding distributed controllers, align the monitoring direction of the configuration monitoring units with the key areas, cover the key areas with the monitoring range, receive the visible light images taken by the configuration monitoring units, and analyze whether there are security risks in the visible light images based on the regional security identification model built into the central server. When there are security risks, an alarm is issued to the management personnel through the display device.

[0014] Compared with the prior art, the present invention has the following beneficial effects: BIM data can be appropriately displayed in the GIS model according to the distribution of personnel, which can reduce the computing resources occupied by display processing while meeting display requirements. In addition, monitoring images can be automatically identified and processed to reduce the workload of managers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the composition of the road construction management system of the present invention. DETAILED DESCRIPTION

[0016] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] like Figure 1 As shown, the road construction management system based on GIS and BIM proposed in the present invention includes a display device, a central server, a distributed controller, a monitoring unit and an unmanned aerial vehicle inspection module. The central server is communicatively connected with the display device, the unmanned aerial vehicle inspection module and multiple distributed controllers respectively.

[0018] The construction site is divided into multiple areas, each of which is equipped with a distributed controller and multiple monitoring units. The distributed controllers are connected to the multiple monitoring units in communication. The monitoring units include visible light cameras and infrared cameras, which are arranged on a rotating base and can rotate within a horizontal range of 360°. The multiple monitoring units include a patrol monitoring unit arranged at the center of the area and configuration monitoring units evenly arranged at other locations in the area. The patrol monitoring unit patrols the area according to a set period, and turns on the visible light camera and infrared camera at the same time during the patrol process. The configuration monitoring unit can monitor a specific direction under the control of the distributed controller, and turns on the visible light camera during the monitoring process. The functions of the distributed controller include: 1) Routine area inspections: the inspection monitoring unit rotates 360°, captures visible light images and infrared images in the area, and sends the infrared images to the central server. The local safety recognition model built into the distributed controller analyzes whether there are safety risks in the visible light images. When there are safety risks, an alarm is sent to the central server. The local safety recognition model is based on the AlexNet model and is trained by labeled images. It can identify common dangerous behaviors on the construction site; 2) Key area monitoring: the monitoring direction of the monitoring unit is controlled according to the instructions from the central server, and the captured visible light images are sent to the central server.

[0019] The drone inspection module includes a flight control unit and multiple drones. It can dispatch drones to collect information and build GIS models according to the instructions of the central server, or inspect the construction site and check the progress of the project.

[0020] The display device is used to display the GIS model superimposed with BIM data, and to display prompt information from the central server to the management personnel as needed.

[0021] The central server determines the key areas, displays and monitors the construction site based on the key areas, and controls the drone inspection module to perform automated inspections of the project progress.

[0022] Based on the above road construction management system, the road construction management method based on GIS and BIM specifically includes the following steps: S1. The drone inspection module dispatches drones to collect real-life data around the construction site and builds a GIS model in combination with satellite data.

[0023] S2. The central server determines the key areas based on the infrared images taken by the inspection and monitoring units in each area. The key area determination process is to determine the location of the personnel based on the infrared images taken by the inspection and monitoring units in each area, divide the personnel into multiple personnel groups using the K-means algorithm, and extend the area occupied by the personnel group outward by a set distance to form the key area.

[0024] S3. Digitally display the on-site construction site according to key areas, and focus on monitoring the key areas. The specific process of digitally displaying the on-site construction site according to key areas is to convert BIM data into an IFC model of structured data. GIS data uses the CityGML format. The CityGML format includes the CityGML LODO-LOD3 model. The CityGML LODO model describes the surface area corresponding to the building. The CityGML LOD1 model describes the building block model that expresses the building volume. The CityGML LOD2 model describes the basic shape and surface features of the building. The CityGML LOD3 model can describe a more detailed appearance. The CityGML LODO-LOD3 model has associated definitions in the IFC model. For BIM data involving key areas, the corresponding component information is extracted from the IFC model, and the corresponding CityGML LODO-LOD3 model is constructed. Detailed BIM data display is performed in the GIS model. For BIM data not involving key areas, the corresponding component information is extracted from the IFC model, and the corresponding CityGML The LODO-LOD1 model displays basic BIM data in the GIS model and displays it in appropriate detail, meeting display requirements while reducing the computing resources occupied by display processing. The specific process of focusing on key areas is to determine the configuration monitoring units involved in the key areas, issue instructions to the corresponding distributed controllers, align the monitoring direction of the configuration monitoring units with the key areas, and cover the key areas with the monitoring range. The visible light images taken by the configuration monitoring units are received, and the regional safety recognition model built into the central server is used to analyze whether there are safety risks in the visible light images. When there are safety risks, an alarm is issued to the management personnel through the display device. The regional safety recognition model is based on the ResNet model and is trained by labeled images, which can identify more complex dangerous behaviors or risks.

[0025] The above disclosure is only the preferred embodiment of the present invention, and certainly cannot be used to limit the scope of the present invention. It should be pointed out that for those skilled in the art, any equivalent changes made to the scheme of the present invention without departing from the design structure and principle of the present invention are considered to be within the protection scope of the present invention.

Claims

1. A road construction management system based on GIS and BIM, characterized in that ,The road construction management system includes a display device, a central server, a distributed controller, a monitoring unit and a drone inspection module, and the central server is respectively communicatively connected with the display device, the drone inspection module and a plurality of distributed controllers; The construction site is divided into multiple areas, each area is provided with a distributed controller and multiple monitoring units, and the distributed controller is respectively connected to the multiple monitoring units for communication; The display device is used to display the GIS model superimposed with BIM data, and to display prompt information from the central server to the management personnel as needed; The central server determines the key areas, displays and monitors the construction site according to the key areas, and controls the drone inspection module to perform automated inspection of the project progress.

2. The road construction management system according to claim 1, characterized in that: The monitoring unit comprises a visible light camera and an infrared camera, and the visible light camera and the infrared camera are arranged on a rotating base and can rotate within a horizontal range of 360°.

3. The road construction management system according to claim 2, characterized in that: The multiple monitoring units include a patrol monitoring unit set at the center of the area and configuration monitoring units evenly set at other locations in the area. The patrol monitoring unit patrols the area according to a set period, and turns on the visible light camera and the infrared camera at the same time during the patrol process. The configuration monitoring unit can monitor in a specific direction under the control of a distributed controller, and turns on the visible light camera during the monitoring process.

4. The road construction management system according to claim 3, characterized in that: The functions of the distributed controller include routine area inspections. The inspection monitoring unit rotates 360°, captures visible light images and infrared images in the area, sends the infrared images to the central server, and analyzes whether there are security risks in the visible light images based on the local security recognition model built into the distributed controller. When there are security risks, an alarm is sent to the central server.

5. The road construction management system according to claim 3, characterized in that: The functions of the distributed controller include key area monitoring, controlling the monitoring direction of the configuration monitoring unit according to the instructions from the central server, and sending the captured visible light images to the central server.

6. The road construction management system according to claim 3, characterized in that: The drone inspection module includes a flight control unit and multiple drones.

7. A road construction management method based on GIS and BIM, based on the road construction management system described in any one of claims 1 to 6, characterized in that ,The road construction management method comprises the following steps: S1, the drone inspection module dispatches drones to collect real-life data around the construction site and builds a GIS model in combination with satellite data; S2. The central server determines the key areas based on the infrared images taken by the inspection and monitoring units in each area; S3. Digitally display the on-site construction site according to key areas and conduct key monitoring on key areas.

8. The road construction management method according to claim 7, characterized in that: In S2, the process of determining the key areas is to determine the location of personnel based on the infrared images taken by the inspection and monitoring units in each area, divide the personnel into multiple groups using the K-means algorithm, and extend the area occupied by the group outward by a set distance to form a key area.

9. The road construction management method according to claim 7, characterized in that: In S3, the specific process of digitally displaying the on-site construction site according to the key areas is to convert the BIM data into an IFC model of structured data, and the GIS data adopts the CityGML format, and the CityGML format includes the CityGML LODO-LOD3 model. For the BIM data involved in the key areas, the corresponding component information is extracted from the IFC model, and the corresponding CityGML LODO-LOD3 model is constructed, and the detailed BIM data display is performed in the GIS model. For the BIM data not involved in the key areas, the corresponding component information is extracted from the IFC model, and the corresponding CityGML LODO-LOD1 model is constructed.

10. The road construction management method according to claim 7, characterized in that: In S3, the specific process of focusing on monitoring key areas is to determine the configuration monitoring units involved in the key areas, issue instructions to the corresponding distributed controllers, align the monitoring direction of the configuration monitoring units with the key areas, cover the key areas with the monitoring range, receive the visible light images taken by the configuration monitoring units, and analyze whether there are security risks in the visible light images based on the regional security identification model built into the central server. When there are security risks, an alarm is issued to the management personnel through the display device.

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