Urban rail transit intelligent system based on BIM and GIS

Abstract

The invention discloses an urban rail transit intelligent system based on BIM (Building Information Modeling) and GIS (Geographic Information System), which is characterized in that two established BIMs are spliced after being adjusted according to actual parameters obtained by the GIS, that is, the BIM of an existing project and the BIM of an extended project are respectively adjusted according to actual parameters obtained by the latest GIS, and meanwhile, the two BIMs are spliced according to an interface; and during splicing, the parameters of the BIM of the extended project are adjusted, so that the construction of the overall BIM can be completed, and the integrity of the overall BIM is facilitated. Therefore, according to the BIM of the existing project and the BIM of the extension project, the BIM of the extension project is newly established on the BIM of the existing project in combination with the latest environmental data of the GIS to obtain the overall BIM, so that no crack between the existing project and the extension project exists when the overall BIM is established, and the integrity of the overall BIM is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of urban rail transit construction, and in particular to an urban rail transit intelligent system based on BIM and GIS. Background Art

[0002] Urban rail transit is the preferred means of transportation for people in the city. It is convenient and fast, greatly reducing the time required for people to travel and improving travel efficiency. Generally, in the construction and use of urban rail transit, the BIM (Building Information Modeling) system is used to establish and use models. BIM is to establish models based on various relevant information data in the construction of urban rail transit, and simulate the real information of real urban rail transit through digital simulation. At the same time, the GIS (Geographic Information System) system is also used to obtain information other than urban rail transit, collect and store geographical environment data in nature, thereby providing a data basis for the construction and operation of urban rail transit.

[0003] At present, the above-mentioned BIM system and GIS system are operated and used separately, providing basic data for urban rail transit researchers for analysis and research. When urban rail transit is being constructed, it is necessary to design it according to the terrain space in the early stage. At this time, researchers need to collect the terrain of the construction area according to the GIS system, and then design it according to the terrain, and then establish a BIM system, which will provide a basis for later construction.

[0004] For the expansion of urban rail transit construction based on existing projects, the current method is to establish the BIM of the expansion project based on GIS, and then complete the splicing of the BIM of the expansion project with the BIM of the existing project to finally obtain the entire BIM. However, when splicing, since the BIM of the existing project and the BIM of the expansion project are completed at different times, there will be a certain deviation in the interface part when splicing the two BIMs, which makes the spliced ​​BIM incoherent as a whole. If other expansion projects need to be expanded again in the future, there will be more cracks in the overall BIM, which is not conducive to the subsequent direct call using BIM, so that the overall BIM cannot replace the real project construction in the future and cannot be effectively used. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an urban rail transit intelligent system based on BIM and GIS in view of the deficiencies in the above-mentioned prior art. According to the BIM of the existing project and the BIM of the completed extension project, combined with the environmental data collected by GIS, the BIM of the extension project is newly built on the BIM of the existing project to obtain the overall BIM, thereby achieving that there will be no gap between the existing project and the extension project when the overall BIM is established, thereby ensuring the integrity of the overall BIM.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: an urban rail transit intelligent system based on BIM and GIS, comprising:

[0007] The original BIM acquisition module acquires the BIM of the existing project and the BIM of the extended project respectively;

[0008] GIS data collection module, which uses GIS to obtain environmental data of existing projects and environmental data of expanded projects;

[0009] BIM update module, which updates the BIM of existing projects according to the environmental data of existing projects, and updates the BIM of extended projects according to the environmental data of extended projects;

[0010] The extended project BIM adjustment module obtains the interface parameters at the expansion interface in the updated existing project BIM, and adjusts the updated extended project BIM according to the interface parameters;

[0011] The BIM splicing module splices the adjusted extended project BIM to the extended interface of the updated existing project BIM to obtain the overall BIM.

[0012] Furthermore, the BIM update module includes:

[0013] Existing project BIM update module, which updates the BIM of existing projects based on the environmental data of existing projects;

[0014] The extended project BIM update module updates the BIM of the extended project according to the environmental data of the extended project.

[0015] Furthermore, the existing project BIM update module includes:

[0016] The BIM point parameter acquisition module obtains the parameters of the set points in the BIM of the existing project as the original parameters;

[0017] An actual point parameter acquisition module selects parameters corresponding to the set points from the environmental data of existing projects as actual parameters;

[0018] The BIM parameter reconstruction module obtains the parameter ratio based on the ratio between the original parameters and the actual parameters, and then corrects the parameters of each point in the BIM of the existing project based on the parameter ratio;

[0019] The BIM reconstruction module rebuilds the BIM according to the parameters of each point in the BIM of the existing project and completes the update of the BIM of the existing project.

[0020] Furthermore, the extended project BIM adjustment module includes:

[0021] The extended interface determination module determines the position of the interface in the updated existing project BIM according to the cross section of the updated extended project BIM port;

[0022] An interface parameter acquisition module extracts interface parameters from the updated existing project BIM according to the interface position in the updated existing project BIM;

[0023] The extended project BIM parameter adjustment module obtains the port parameters of the updated extended project BIM port cross section, and adjusts each parameter in the updated extended project BIM according to the ratio between the interface parameters and the port parameters;

[0024] The extended project BIM construction module rebuilds the updated extended project BIM according to the adjusted parameters of the extended project BIM.

[0025] Furthermore, the extended project BIM parameter adjustment module adjusts various parameters in the updated extended project BIM according to the ratio between the interface parameters and the port parameters, including the following steps:

[0026] Determine the adjustment coefficient according to the ratio between the interface parameter and the port parameter;

[0027] Adjust each parameter in the updated extended project BIM according to the adjustment coefficient.

[0028] Furthermore, in the extended interface determination module, the method of determining the position of the interface in the updated existing project BIM includes any one of the following:

[0029] A: Determine the interface location in the updated existing project BIM based on the cross-section of the updated extended project BIM port;

[0030] B: Determine the interface location in the updated existing project BIM based on the parameters in the cross section of the updated extended project BIM port.

[0031] Compared with the prior art, the present invention has the following advantages:

[0032] The present invention provides an urban rail transit intelligent system based on BIM and GIS, which completes splicing by adjusting two BIMs that have been established according to actual parameters obtained by GIS, that is, the BIM of the existing project and the BIM of the extended project are adjusted according to the actual parameters obtained by the latest GIS, respectively, to ensure the real-time updateability and splicing connectivity of the two BIMs, and at the same time, the two BIMs are spliced ​​according to an interface, and when splicing, the parameters of the BIM of the extended project are adjusted, so that the construction of the overall BIM can be completed, and the parameters of the BIM of the extended project are adjusted to be beneficial to the integrity of the overall BIM, and to avoid the gaps generated in the model when splicing. Therefore, the present invention, based on the BIM of the existing project and the BIM of the extended project that has been made, combines the environmental data collected by GIS, and newly builds the BIM of the extended project on the BIM of the existing project to obtain the overall BIM, thereby achieving that there will be no cracks between the existing project and the extended project when the overall BIM is established, and the integrity of the overall BIM is ensured.

[0033] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A structural schematic diagram of an urban rail transit intelligent system based on BIM and GIS provided by the present invention. DETAILED DESCRIPTION

[0035] like Figure 1 As shown, the present invention provides an urban rail transit intelligent system based on BIM and GIS, including:

[0036] The original BIM acquisition module acquires the BIM of the existing project and the BIM of the extended project respectively;

[0037] GIS data collection module, which uses GIS to obtain environmental data of existing projects and environmental data of expanded projects;

[0038] BIM update module, which updates the BIM of existing projects according to the environmental data of existing projects, and updates the BIM of extended projects according to the environmental data of extended projects;

[0039] The extended project BIM adjustment module obtains the interface parameters at the expansion interface in the updated existing project BIM, and adjusts the updated extended project BIM according to the interface parameters;

[0040] The BIM splicing module splices the adjusted extended project BIM to the extended interface of the updated existing project BIM to obtain the overall BIM.

[0041] The above-mentioned modules coordinate and interact with each other, and the splicing is completed by adjusting the two established BIMs according to the actual parameters obtained by GIS. That is, the BIM of the existing project and the BIM of the extended project are adjusted according to the actual parameters obtained by the latest GIS respectively, to ensure the real-time update and connectivity of the two BIMs. At the same time, the two BIMs are spliced ​​according to the interface. When splicing, the parameters of the BIM of the extended project are adjusted, so that the construction of the overall BIM can be completed. Adjusting the parameters of the BIM of the extended project is conducive to the integrity of the overall BIM and avoids gaps in the model during splicing.

[0042] Therefore, the present invention builds the BIM of the extended project on the BIM of the existing project based on the BIM of the existing project and the BIM of the completed extended project, in combination with the environmental data collected by GIS, to obtain the overall BIM, thereby ensuring that there is no gap between the existing project and the extended project when the overall BIM is established, thereby ensuring the integrity of the overall BIM.

[0043] Among them, the original BIM acquisition module is used to obtain the BIM of the existing project and the BIM of the extended project. The BIM of the existing project and the BIM of the extended project are pre-established. The present invention is a process of splicing two BIMs, and the process of BIM construction is no longer repeated. The conventional construction method can be used.

[0044] The GIS data acquisition module in the present invention collects the actual conditions of existing projects and extended projects through the constructed GIS system to obtain specific parameters, namely environmental data. The two BIMs are subsequently updated through the environmental data, so that the BIM has real-time and splicing continuity, ensuring that the subsequent splicing parameters are normal and the splicing is smooth.

[0045] The BIM update module includes two sub-modules, namely an existing project BIM update module and an extended project BIM update module.

[0046] Existing project BIM update module, which updates the BIM of existing projects based on the environmental data of existing projects;

[0047] The extended project BIM update module updates the BIM of the extended project according to the environmental data of the extended project.

[0048] The two submodules are used to update two BIMs, namely, the BIM of the existing project and the BIM of the extended project. The present invention takes the BIM update module of the existing project as an example to introduce the contents included in the module and describe the update process. The extended project BIM update module works exactly the same as the existing project BIM update module, except that the subjects they operate on are different, one is the existing project BIM and the other is the extended project BIM.

[0049] The BIM update module for the existing project includes:

[0050] The BIM point parameter acquisition module obtains the parameters of the set points in the BIM of the existing project as the original parameters;

[0051] An actual point parameter acquisition module selects parameters corresponding to the set points from the environmental data of existing projects as actual parameters;

[0052] The BIM parameter reconstruction module obtains the parameter ratio based on the ratio between the original parameters and the actual parameters, and then corrects the parameters of each point in the BIM of the existing project based on the parameter ratio;

[0053] The BIM reconstruction module rebuilds the BIM according to the parameters of each point in the BIM of the existing project and completes the update of the BIM of the existing project.

[0054] When updating, the original parameters are compared with the environmental data actually detected this time. The comparison rule is generally a proportional relationship. At this time, the parameters of all points in the BIM can be updated according to the proportional relationship. This provides a basis for BIM update and reconstruction, and then the BIM is rebuilt to complete the BIM update.

[0055] In the present invention, for two BIMs that have been updated, the next step is to perform a splicing process, referring to the extended project BIM adjustment module in the present invention, to complete the splicing of the two BIMs.

[0056] The extended project BIM adjustment module includes: an extended interface determination module, an interface parameter acquisition module, an extended project BIM parameter adjustment module and an extended project BIM construction module.

[0057] The extended interface determination module determines the position of the interface in the updated existing project BIM according to the cross section of the updated extended project BIM port;

[0058] An interface parameter acquisition module extracts interface parameters from the updated existing project BIM according to the interface position in the updated existing project BIM;

[0059] The extended project BIM parameter adjustment module obtains the port parameters of the updated extended project BIM port cross section, and adjusts each parameter in the updated extended project BIM according to the ratio between the interface parameters and the port parameters;

[0060] The extended project BIM construction module rebuilds the updated extended project BIM according to the adjusted parameters of the extended project BIM.

[0061] In the above splicing process, the splicing interface position is first determined. This is the work of the extended interface determination module. The module includes two methods (A and B), and you can choose either one, that is:

[0062] In the extended interface determination module, the method of determining the position of the interface in the updated existing project BIM includes any one of the following:

[0063] A: Determine the interface location in the updated existing project BIM based on the cross-section of the updated extended project BIM port;

[0064] B: Determine the interface location in the updated existing project BIM based on the parameters in the cross section of the updated extended project BIM port.

[0065] Among them, A starts from the perspective of graphic shape, and B starts from the perspective of parameters. The present invention recommends method B, which can more accurately obtain the position of the interface. A is used when the shape difference is relatively large to achieve rapid positioning.

[0066] In addition, the above-mentioned extended project BIM parameter adjustment module adjusts various parameters in the updated extended project BIM according to the ratio between the interface parameters and the port parameters, including the following steps:

[0067] Determine the adjustment coefficient according to the ratio between the interface parameter and the port parameter;

[0068] Adjust each parameter in the updated extended project BIM according to the adjustment coefficient.

[0069] Similarly, when splicing, the parameters are adjusted according to the correspondence between them to complete the reconstruction of the BIM. This can make the standards of each parameter in the two BIMs the same, so that no cracks will occur after splicing, which is completely consistent with the actual situation. Therefore, when the overall BIM is established, there will be no cracks between the existing project and the expanded project, ensuring the integrity of the overall BIM.

[0070] The BIM splicing module in the present invention splices the adjusted extended project BIM to the extended interface of the updated existing project BIM to obtain the overall BIM. Based on the above-mentioned adjustment of parameters, the splicing of this module can be seamless, and the BIM of the new extended project is built on the BIM of the existing project to obtain the overall BIM, and no cracks will be generated between the existing project and the extended project during the splicing process.

[0071] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An urban rail transit intelligent system based on BIM and GIS, characterized in that: include: The original BIM acquisition module acquires the BIM of the existing project and the BIM of the extended project respectively; GIS data collection module, which uses GIS to obtain environmental data of existing projects and environmental data of expanded projects; BIM update module, which updates the BIM of existing projects according to the environmental data of existing projects, and updates the BIM of extended projects according to the environmental data of extended projects; The extended project BIM adjustment module obtains the interface parameters at the expansion interface in the updated existing project BIM, and adjusts the updated extended project BIM according to the interface parameters; The BIM splicing module splices the adjusted extended project BIM to the extended interface of the updated existing project BIM to obtain the overall BIM.

2. According to the BIM and GIS-based urban rail transit intelligent system of claim 1, it is characterized in that: The BIM update module includes: Existing project BIM update module, which updates the BIM of existing projects based on the environmental data of existing projects; The extended project BIM update module updates the BIM of the extended project according to the environmental data of the extended project.

3. According to the BIM and GIS-based urban rail transit intelligent system of claim 2, it is characterized in that: The existing project BIM update module includes: The BIM point parameter acquisition module obtains the parameters of the set points in the BIM of the existing project as the original parameters; An actual point parameter acquisition module selects parameters corresponding to the set points from the environmental data of existing projects as actual parameters; The BIM parameter reconstruction module obtains the parameter ratio based on the ratio between the original parameters and the actual parameters, and then corrects the parameters of each point in the BIM of the existing project based on the parameter ratio; The BIM reconstruction module rebuilds the BIM according to the parameters of each point in the BIM of the existing project and completes the update of the BIM of the existing project.

4. According to the BIM and GIS-based urban rail transit intelligent system of claim 1, it is characterized in that: The extended project BIM adjustment module includes: The extended interface determination module determines the position of the interface in the updated existing project BIM according to the cross section of the updated extended project BIM port; An interface parameter acquisition module extracts interface parameters from the updated existing project BIM according to the interface position in the updated existing project BIM; The extended project BIM parameter adjustment module obtains the port parameters of the updated extended project BIM port cross section, and adjusts each parameter in the updated extended project BIM according to the ratio between the interface parameters and the port parameters; The extended project BIM construction module rebuilds the updated extended project BIM according to the adjusted parameters of the extended project BIM.

5. According to the BIM and GIS-based urban rail transit intelligent system of claim 4, it is characterized in that: The extended project BIM parameter adjustment module adjusts various parameters in the updated extended project BIM according to the ratio between the interface parameters and the port parameters, including the following steps: Determine the adjustment coefficient according to the ratio between the interface parameter and the port parameter; Adjust each parameter in the updated extended project BIM according to the adjustment coefficient.

6. The urban rail transit intelligent system based on BIM and GIS according to claim 4 is characterized in that: In the extended interface determination module, the method of determining the position of the interface in the updated existing project BIM includes any one of the following: A: Determine the interface location in the updated existing project BIM based on the cross-section of the updated extended project BIM port; B: Determine the interface location in the updated existing project BIM based on the parameters in the cross section of the updated extended project BIM port.

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