Electromechanical auxiliary installation system and method based on BIM + AR

Through BIM+AR technology, the electromechanical auxiliary installation model is constructed and matched in real time, which solves the problems of delay in information transmission and difficulty in monitoring in traditional electromechanical installation, and achieves high accuracy and high efficiency of electromechanical installation.

CN119323089APending Publication Date: 2025-01-17NO 1 ENG CO LTD OF FHEC OF CCCC
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Patent Information

Application Number
CN202411372789.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-29
Publication Date
2025-01-17

AI Technical Summary

Technical Problem

In traditional electromechanical installation projects, there is delay or inaccurate information transmission of the design plan at the construction site, making it difficult to achieve real-time monitoring, resulting in inaccuracy and delay in the installation process.

Method used

Using a electromechanical assisted installation system based on BIM+AR, the electromechanical assisted installation model is constructed through the server, and the QR code and RTK base station data are collected and matched in real time at the construction site through the AR intelligent terminal to realize the visual display of the electromechanical BIM model and the actual environment. and real-time monitoring.

Benefits of technology

It improves the reliability and accuracy of electromechanical installation, reduces loss of work and rework, enhances the operator's real-time guidance capabilities, simplifies the installation process, and improves work efficiency.

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Abstract

The invention relates to the technical field of electromechanical installation, in particular to an electromechanical auxiliary installation system and method based on BIM + AR, and the system comprises a server and an AR intelligent terminal. The server comprises a model construction module; the AR intelligent terminal comprises a data receiving module, a data acquisition module, an identification module, a positioning module, a video acquisition module and a processing module; wherein the processing module is used for carrying out position matching on a building BIM model in an electromechanical auxiliary installation model and a building in the current environment video based on the corresponding electromechanical auxiliary installation model according to the current position information of the AR intelligent terminal and the corresponding current environment video; and the corresponding electromechanical BIM model is visually displayed in the corresponding current environment video.
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Description

Technical Field

[0001] The present invention relates to the technical field of electromechanical installation, and in particular to a BIM+AR-based electromechanical auxiliary installation system and method. Background Art

[0002] In traditional electromechanical installation projects, design plans are often the core basis for project implementation. These plans are usually completed by professional design teams on the computer, including detailed mechanical drawings, electrical drawings, and other related engineering drawings and documents. However, although a lot of time and effort is invested in the design phase to ensure the accuracy and feasibility of the plan, in the actual construction process, these plans are often implemented based on the experience and technical level of the construction unit. This dependence brings about the following problems:

[0003] Since design plans are mainly stored on electronic devices, information transmission at the construction site may be delayed or inaccurate, resulting in the design intent not being fully and correctly conveyed to construction personnel.

[0004] Traditional management methods make it difficult to achieve real-time monitoring of the electromechanical installation process. Once a problem occurs, it may have caused certain losses or delays. Summary of the invention

[0005] One of the purposes of the present invention is to provide a BIM+AR-based electromechanical assisted installation system and method, which can realize real-time monitoring and guidance of the electromechanical installation process, greatly improving the reliability and accuracy of the operator's electromechanical installation.

[0006] In order to achieve the above purpose, a BIM+AR-based electromechanical auxiliary installation system is provided, including a server and an AR intelligent terminal;

[0007] The server includes:

[0008] The model building module is used to build the corresponding building BIM model according to the electromechanical installation data and the building data where the electromechanical equipment is to be installed, and to set the corresponding electromechanical BIM model in the building BIM model to form the corresponding electromechanical auxiliary installation model and feed it back to the AR smart terminal;

[0009] The AR intelligent terminal includes:

[0010] A data receiving module is used to receive the electromechanical auxiliary installation model fed back by the server;

[0011] A data collection module, used to collect the two-dimensional code set at the construction site; the two-dimensional code is associated with the corresponding electromechanical auxiliary installation model;

[0012] The recognition module is used to recognize the QR code according to the collected QR code, and identify the electromechanical auxiliary installation model corresponding to the QR code;

[0013] The positioning module is used to collect the observation data corresponding to the RTK base station pre-set within the preset range of the building and the observation data corresponding to the mobile station carried by the AR smart terminal itself when the operator arrives at the observation point, and adjust the observation data corresponding to the mobile station according to the observation data corresponding to the RTK base station and the mobile station, and calculate the current position information of the AR smart terminal based on the observation data of the adjusted mobile station;

[0014] The video acquisition module is used to send a surrounding environment video acquisition signal when the operator arrives at the observation point; the operator uses the AR smart terminal to collect the current environment video around the observation point in real time according to the surrounding environment video acquisition signal;

[0015] The processing module is used to match the position of the building BIM model in the electromechanical assisted installation model with the building in the current environment video based on the corresponding electromechanical assisted installation model according to the current position information of the AR smart terminal and the corresponding current environment video, and to visualize the corresponding electromechanical BIM model in the corresponding current environment video.

[0016] Technical principles and effects of this solution: In this solution, first, a building BIM model is constructed based on the electromechanical installation data and the corresponding building data, and an electromechanical BIM model is set in the model to form an electromechanical auxiliary installation model, that is, the corresponding electromechanical equipment and the corresponding installation location, specifications and other information are embedded on the basis of the building BIM model, so as to realize the simulation of the state of the electromechanical installation of the building, and synchronize it to the corresponding AR smart terminal.

[0017] After that, the operator brings the AR smart terminal to the construction site, collects and identifies the QR code corresponding to the construction site, and thus identifies the electromechanical BIM model corresponding to the QR code. Then, when the operator arrives at the observation point, the observation data corresponding to the RTK base station pre-set within the preset range of the building and the observation data corresponding to the mobile station carried by the AR smart terminal itself are collected, and the observation data corresponding to the mobile station is adjusted according to the observation data corresponding to the RTK base station and the mobile station, and the current position information of the AR smart terminal is calculated based on the adjusted observation data of the mobile station, and the current position information of the AR smart terminal is accurately identified through RTK technology.

[0018] At the same time, a surrounding environment video acquisition signal is sent out; the operator uses the AR smart terminal to collect the current environment video around the observation point in real time according to the surrounding environment video acquisition signal; that is, the surrounding environment of the observation point is monitored in real time, and according to the current position information of the AR smart terminal and the corresponding current environment video, based on the corresponding electromechanical assisted installation model, the building BIM model in the electromechanical assisted installation model is matched with the building in the current environment video, and the corresponding electromechanical BIM model is visualized in the corresponding current environment video.

[0019] In this solution, AR technology is used through AR smart terminals to integrate the electromechanical BIM model with the actual building environment and visualize it, thereby providing real-time installation guidance for on-site operators, reducing the possibility of work delays and rework, and greatly improving the reliability and accuracy of electromechanical installation by operators.

[0020] Through QR code recognition, the building BIM model and the electromechanical BIM model are automatically matched, which reduces human errors, simplifies manual operations during the installation process, and improves work efficiency.

[0021] Further, the processing module includes:

[0022] An image recognition module, configured to identify the acquisition azimuth corresponding to the current location information of the AR smart terminal according to the current location information of the AR smart terminal and the corresponding current environment video;

[0023] The analysis module is used to match the building BIM model and the electromechanical BIM model corresponding to the collection azimuth corresponding to the current location information based on the identified collection azimuth and current location information and the corresponding electromechanical auxiliary installation model, and match the corresponding building BIM model with the building in the current environment video one by one. After the matching is completed, the corresponding electromechanical BIM model is superimposed on the current environment video according to the relative position between the electromechanical BIM model and the building BIM model in the electromechanical auxiliary installation model.

[0024] Beneficial effect: In this embodiment, the current environment video and the corresponding current position information are collected to identify the collection azimuth corresponding to the current position, thereby realizing the precise positioning of the collection angle and collection position corresponding to the AR smart terminal, greatly improving the accuracy and reliability of subsequent model matching.

[0025] Subsequently, based on the acquisition azimuth and current position information, the building BIM model and the corresponding electromechanical BIM model within the acquisition range involved in the acquisition azimuth corresponding to the current position information are matched and determined, and the corresponding building BIM model is matched one by one with the building in the current environment video, so as to achieve the matching of the building BIM model with the building site structure. After that, the corresponding electromechanical BIM model can be superimposed on the current environment video according to the relative position between the electromechanical BIM model and the building BIM model in the electromechanical auxiliary installation model, so that the operator can provide real-time guidance on the on-site electromechanical installation through the situation of the electromechanical BIM model visualized in the AR smart terminal in the current environment video.

[0026] Furthermore, the processing module further includes:

[0027] The display range adjustment module is used to dynamically adjust the display range between the electromechanical BIM model and the current position information when the corresponding electromechanical BIM model is superimposed on the corresponding current environment video.

[0028] Beneficial effects: In this solution, the dynamic adjustment of the display range can better assist operators in auxiliary installation of electromechanical equipment, and the installation status of the electromechanical BIM model in the current environment video can be viewed in a targeted manner.

[0029] Furthermore, the AR intelligent terminal further includes:

[0030] The early warning module is used to analyze whether the corresponding electromechanical equipment has been installed based on the current environment video. If the installation is completed, it is used to judge whether each electromechanical equipment has been installed in place based on the electromechanical equipment in the current environment video and the corresponding electromechanical BIM model. If not, an early warning message is issued.

[0031] Furthermore, the AR intelligent terminal further includes:

[0032] A display type selection module, used to set the corresponding electromechanical display type when the electromechanical installation auxiliary model corresponding to the QR code is identified, and the electromechanical display type includes an omnidirectional display type and a real-time display type;

[0033] When the corresponding electromechanical display type is a real-time display type, executing a positioning module;

[0034] When the corresponding electromechanical display type is an omnidirectional display type, the electromechanical installation auxiliary model corresponding to the QR code is visualized through the AR smart terminal.

[0035] Beneficial effect: In this scheme, different display modes are set by setting the electromechanical display type, that is, the entire scheme can display the full range of display types corresponding to the building, thereby realizing a full range of visualization of the electromechanical installation auxiliary model, while also being able to perform partial visualization of the electromechanical installation auxiliary model from a certain perspective, greatly improving the applicability of the entire system.

[0036] The present invention also provides a BIM+AR-based electromechanical assisted installation method, using the above-mentioned BIM+AR-based electromechanical assisted installation system, comprising the following steps:

[0037] S1. According to the electromechanical installation data and the building data to be installed by the corresponding electromechanical department, a corresponding building BIM model is constructed, and a corresponding electromechanical BIM model is set in the building BIM model to form a corresponding electromechanical auxiliary installation model and feed it back to the AR smart terminal;

[0038] S2, receiving the electromechanical assisted installation model fed back by the server;

[0039] S3, collecting the QR code set at the construction site; the QR code is associated with the corresponding electromechanical auxiliary installation model;

[0040] S4, according to the collected QR code, identifying the QR code, and identifying the electromechanical auxiliary installation model corresponding to the QR code;

[0041] S5. When the operator arrives at the observation point, the observation data corresponding to the RTK base station pre-set within the preset range of the building and the observation data corresponding to the mobile station carried by the AR smart terminal are collected, and the observation data corresponding to the mobile station is adjusted according to the observation data corresponding to the RTK base station and the mobile station, and the current position information of the AR smart terminal is calculated based on the observation data of the adjusted mobile station;

[0042] S6. When the operator arrives at the observation point, a surrounding environment video acquisition signal is issued; the operator uses the AR smart terminal to collect the current environment video around the observation point in real time according to the surrounding environment video acquisition signal;

[0043] S7. According to the current position information of the AR smart terminal and the corresponding current environment video, based on the corresponding electromechanical assisted installation model, the building BIM model in the electromechanical assisted installation model is matched with the building in the current environment video, and the corresponding electromechanical BIM model is visualized in the corresponding current environment video. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1This is a logic block diagram of the electromechanical auxiliary installation system based on BIM+AR in the first embodiment of the present invention;

[0045] Figure 2 This is a flow chart of the electromechanical assisted installation method based on BIM+AR in Example 1 of the present invention.

[0046] Figure 3 This is the display image corresponding to the electromechanical BIM model superimposed on the corresponding current environment video by the AR smart terminal in the first embodiment of the present invention. DETAILED DESCRIPTION

[0047] The following is further described in detail through specific implementation methods:

[0048] Embodiment 1

[0049] A BIM+AR-based electromechanical auxiliary installation system, basically Figure 1 and Figure 3 As shown, it includes a server and an AR smart terminal;

[0050] The server includes:

[0051] The model building module is used to build the corresponding building BIM model according to the electromechanical installation data and the building data to be installed by the corresponding electromechanical department, and set the corresponding electromechanical BIM model in the building BIM model to form the corresponding electromechanical auxiliary installation model and feedback to the AR smart terminal; in this embodiment, follow up the on-site construction situation, determine whether the on-site reserved and embedded has been adjusted, whether the building structure has changed, etc., and organize the building structure change records. Summarize and organize the engineering drawings, drawing review records, design changes and other materials, determine the BIM modeling depth according to the engineering construction situation and the overall plan of BIM+AR application, and write BIM classification standards, naming standards, classification standards and storage standards to ensure the uniformity of the BIM model. Write the electromechanical pipe layout criteria, conduct multi-party review, and confirm the net height requirements, aesthetic principles, layout principles, etc. of the underground electromechanical pipe network to meet the requirements of all parties for the electromechanical pipe network. When building the model, create a unified project template in the early stage of building the model to ensure the consistency of the model origin, model unit, model measurement system, model coordinates, floor elevation, and model axis network. The model is created using Revit software, referring to the CAD drawings, drawing review records, design changes and other materials of various disciplines, and is created in accordance with the architectural, structural, water supply and drainage, HVAC, and electrical disciplines. The relevant information of the model is strictly unified in accordance with the standards formulated in the early stage, which is convenient for the modification of the model and the integration of the later model. The specific architectural professional model requires that the size and ceiling height of the stairwell, elevator room, pipe shaft, stairs, power distribution room, air-conditioning room, pump room, heat exchange station must be accurately positioned. The structural professional model requires that the cross-sectional dimensions and positioning dimensions of beams, plates, and columns must be consistent with the drawings; the elevation of the bottom of the beam in the pipe gallery must be consistent with the design requirements. If the pipeline passes through the beam, the designer needs to provide a detailed reinforcement diagram, and BIM will make the node of the pipeline passing through the beam. The water supply and drainage professional model requires that the naming of each system must be consistent with the drawings; the slope of the water supply and drainage pipeline must be built according to the requirements of the design instructions of the drawings; various valves in the system must be added according to the positions in the drawings; the pipeline elevation is set according to the design instructions; pipelines with insulation layers need to have insulation layers. The HVAC model requires that the names of each system must be consistent with the drawings; some equipment and terminals that affect the integration of pipelines must be created according to the requirements of the drawings, such as fan coil units, vents, etc.; the modeling requirements of the HVAC water system are consistent with the modeling requirements of the water supply and drainage profession; the insulation layer must be built for pipelines with insulation layers. The electrical profession requires that the names of each system must be consistent with the drawings, and some equipment and terminals that affect the integration of pipelines must be created according to the requirements of the drawings, such as distribution boxes, distribution cabinets, etc. The model data should be accurate, and the model should be updated at any time when there are changes in on-site construction information or drawings.

[0052] The AR intelligent terminal includes:

[0053] A data receiving module is used to receive the electromechanical auxiliary installation model fed back by the server;

[0054] A data collection module, used to collect the two-dimensional code set at the construction site; the two-dimensional code is associated with the corresponding electromechanical auxiliary installation model;

[0055] The recognition module is used to recognize the QR code according to the collected QR code, and identify the electromechanical auxiliary installation model corresponding to the QR code;

[0056] The positioning module is used to collect the observation data corresponding to the RTK base station pre-set within the preset range of the building and the observation data corresponding to the mobile station carried by the AR smart terminal itself when the operator arrives at the observation point, and adjust the observation data corresponding to the mobile station according to the observation data corresponding to the RTK base station and the mobile station, and calculate the current position information of the AR smart terminal based on the observation data of the adjusted mobile station;

[0057] The video acquisition module is used to send a surrounding environment video acquisition signal when the operator arrives at the observation point; the operator uses the AR smart terminal to collect the current environment video around the observation point in real time according to the surrounding environment video acquisition signal;

[0058] The processing module is used to match the position of the building BIM model in the electromechanical assisted installation model with the building in the current environment video based on the corresponding electromechanical assisted installation model according to the current position information of the AR smart terminal and the corresponding current environment video, and to visualize the corresponding electromechanical BIM model in the corresponding current environment video.

[0059] The processing module comprises:

[0060] An image recognition module, configured to identify the acquisition azimuth corresponding to the current location information of the AR smart terminal according to the current location information of the AR smart terminal and the corresponding current environment video;

[0061] The analysis module is used to match the building BIM model and the electromechanical BIM model corresponding to the collection azimuth corresponding to the current location information based on the identified collection azimuth and current location information and the corresponding electromechanical auxiliary installation model, and match the corresponding building BIM model with the building in the current environment video one by one. After the matching is completed, the corresponding electromechanical BIM model is superimposed on the current environment video according to the relative position between the electromechanical BIM model and the building BIM model in the electromechanical auxiliary installation model.

[0062] The display range adjustment module is used to dynamically adjust the display range between the electromechanical BIM model and the current position information when the corresponding electromechanical BIM model is superimposed on the corresponding current environment video.

[0063] The AR intelligent terminal also includes:

[0064] The early warning module is used to analyze whether the corresponding electromechanical equipment has been installed based on the current environment video. If the installation is completed, it is used to judge whether each electromechanical equipment has been installed in place based on the electromechanical equipment in the current environment video and the corresponding electromechanical BIM model. If not, an early warning message is issued.

[0065] A display type selection module, used to set the corresponding electromechanical display type when the electromechanical installation auxiliary model corresponding to the QR code is identified, and the electromechanical display type includes an omnidirectional display type and a real-time display type;

[0066] When the corresponding electromechanical display type is a real-time display type, executing a positioning module;

[0067] When the corresponding electromechanical display type is an omnidirectional display type, the electromechanical installation auxiliary model corresponding to the QR code is visualized through the AR smart terminal.

[0068] like Figure 2 As shown, this embodiment also discloses a BIM+AR-based electromechanical assisted installation method, using the above-mentioned BIM+AR-based electromechanical assisted installation system, including the following steps:

[0069] S1. According to the electromechanical installation data and the building data to be installed by the corresponding electromechanical department, a corresponding building BIM model is constructed, and a corresponding electromechanical BIM model is set in the building BIM model to form a corresponding electromechanical auxiliary installation model and feed it back to the AR smart terminal;

[0070] S2, receiving the electromechanical assisted installation model fed back by the server;

[0071] S3, collecting the QR code set at the construction site; the QR code is associated with the corresponding electromechanical auxiliary installation model;

[0072] S4, according to the collected QR code, identifying the QR code, and identifying the electromechanical auxiliary installation model corresponding to the QR code;

[0073] S5. When the operator arrives at the observation point, the observation data corresponding to the RTK base station pre-set within the preset range of the building and the observation data corresponding to the mobile station carried by the AR smart terminal are collected, and the observation data corresponding to the mobile station is adjusted according to the observation data corresponding to the RTK base station and the mobile station, and the current position information of the AR smart terminal is calculated based on the observation data of the adjusted mobile station;

[0074] S6. When the operator arrives at the observation point, a surrounding environment video acquisition signal is issued; the operator uses the AR smart terminal to collect the current environment video around the observation point in real time according to the surrounding environment video acquisition signal;

[0075] S7. According to the current position information of the AR smart terminal and the corresponding current environment video, based on the corresponding electromechanical assisted installation model, the building BIM model in the electromechanical assisted installation model is matched with the building in the current environment video, and the corresponding electromechanical BIM model is visualized in the corresponding current environment video.

[0076] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is described too much here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can know all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A BIM+AR-based electromechanical auxiliary installation system, characterized by: Including server and AR smart terminal; The server includes: The model building module is used to build the corresponding building BIM model according to the electromechanical installation data and the building data where the electromechanical equipment is to be installed, and to set the corresponding electromechanical BIM model in the building BIM model to form the corresponding electromechanical auxiliary installation model and feed it back to the AR smart terminal; The AR intelligent terminal includes: A data receiving module is used to receive the electromechanical auxiliary installation model fed back by the server; A data collection module, used to collect the two-dimensional code set at the construction site; the two-dimensional code is associated with the corresponding electromechanical auxiliary installation model; The recognition module is used to recognize the QR code according to the collected QR code, and identify the electromechanical auxiliary installation model corresponding to the QR code; The positioning module is used to collect the observation data corresponding to the RTK base station pre-set within the preset range of the building and the observation data corresponding to the mobile station carried by the AR smart terminal itself when the operator arrives at the observation point, and adjust the observation data corresponding to the mobile station according to the observation data corresponding to the RTK base station and the mobile station, and calculate the current position information of the AR smart terminal based on the observation data of the adjusted mobile station; The video acquisition module is used to send a surrounding environment video acquisition signal when the operator arrives at the observation point; the operator uses the AR smart terminal to collect the current environment video around the observation point in real time according to the surrounding environment video acquisition signal; The processing module is used to match the position of the building BIM model in the electromechanical assisted installation model with the building in the current environment video based on the corresponding electromechanical assisted installation model according to the current position information of the AR smart terminal and the corresponding current environment video, and to visualize the corresponding electromechanical BIM model in the corresponding current environment video.

2. The electromechanical auxiliary installation system based on BIM+AR according to claim 1, characterized in that: The processing module comprises: An image recognition module, configured to identify the acquisition azimuth corresponding to the current location information of the AR smart terminal according to the current location information of the AR smart terminal and the corresponding current environment video; The analysis module is used to match the building BIM model and the electromechanical BIM model corresponding to the collection azimuth corresponding to the current location information based on the identified collection azimuth and current location information and the corresponding electromechanical auxiliary installation model, and match the corresponding building BIM model with the building in the current environment video one by one. After the matching is completed, the corresponding electromechanical BIM model is superimposed on the current environment video according to the relative position between the electromechanical BIM model and the building BIM model in the electromechanical auxiliary installation model.

3. The electromechanical auxiliary installation system based on BIM+AR according to claim 2, characterized in that: The processing module also includes: The display range adjustment module is used to dynamically adjust the display range between the electromechanical BIM model and the current position information when the corresponding electromechanical BIM model is superimposed on the corresponding current environment video.

4. The electromechanical auxiliary installation system based on BIM+AR according to claim 3 is characterized in that: The AR intelligent terminal also includes: The early warning module is used to analyze whether the corresponding electromechanical equipment has been installed based on the current environment video. If the installation is completed, it is used to judge whether each electromechanical equipment has been installed in place based on the electromechanical equipment in the current environment video and the corresponding electromechanical BIM model. If not, an early warning message is issued.

5. The electromechanical auxiliary installation system based on BIM+AR according to claim 4 is characterized in that: The AR intelligent terminal also includes: A display type selection module, used to set the corresponding electromechanical display type when the electromechanical installation auxiliary model corresponding to the QR code is identified, and the electromechanical display type includes an omnidirectional display type and a real-time display type; When the corresponding electromechanical display type is a real-time display type, executing a positioning module; When the corresponding electromechanical display type is an omnidirectional display type, the electromechanical installation auxiliary model corresponding to the QR code is visualized through the AR smart terminal.

6. A BIM+AR-based electromechanical assisted installation method, using a BIM+AR-based electromechanical assisted installation system according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. According to the electromechanical installation data and the building data to be installed by the corresponding electromechanical department, a corresponding building BIM model is constructed, and a corresponding electromechanical BIM model is set in the building BIM model to form a corresponding electromechanical auxiliary installation model and feed it back to the AR smart terminal; S2, receiving the electromechanical assisted installation model fed back by the server; S3, collecting the QR code set at the construction site; the QR code is associated with the corresponding electromechanical auxiliary installation model; S4, according to the collected QR code, identifying the QR code, and identifying the electromechanical auxiliary installation model corresponding to the QR code; S5. When the operator arrives at the observation point, the observation data corresponding to the RTK base station pre-set within the preset range of the building and the observation data corresponding to the mobile station carried by the AR smart terminal are collected, and the observation data corresponding to the mobile station is adjusted according to the observation data corresponding to the RTK base station and the mobile station, and the current position information of the AR smart terminal is calculated based on the observation data of the adjusted mobile station; S6. When the operator arrives at the observation point, a surrounding environment video acquisition signal is issued; the operator uses the AR smart terminal to collect the current environment video around the observation point in real time according to the surrounding environment video acquisition signal; S7. According to the current position information of the AR smart terminal and the corresponding current environment video, based on the corresponding electromechanical assisted installation model, the building BIM model in the electromechanical assisted installation model is matched with the building in the current environment video, and the corresponding electromechanical BIM model is visualized in the corresponding current environment video.