Construction inspection support method, support device, and support system

Abstract

The present invention provides a construction acceptance inspection method, device, and system. A first construction model is established at a construction site on the basis of site detection data, and the first construction model is compared with a second construction model based on preliminarily established design data to confirm the result of acceptance inspection in accordance with the result of comparison, with a model thereby established on the basis of the result actually detected at the site being compared with a design model, so that the difference between the actual completion state of construction and a desired design plan can be accurately reflected and, as the accuracy of acceptance inspection results is high, it is possible to inspect for acceptance in accordance with a unified standard. Also, the two models are directly compared, and therefore a processing step for this is simple and the efficiency of acceptance inspection is high. Furthermore, even a user staying at a place that is not the site can acquire the result of acceptance inspection in a timely manner, so that the efficiency of acceptance inspection improves and the convenience of acceptance inspection increases, with time saved and user experiences improved.

Description

[Technical Field]

[0001] The present invention relates to the field of construction technology, and more particularly to a construction acceptance inspection method, device, and system. [Background technology]

[0002] With the progress of urbanization and the improvement of modernization, various construction projects are becoming larger and more complex, but the level of information technology is not high, and the traceability of construction quality control has always been a shortcoming in the industry.In addition, construction acceptance inspection is usually carried out manually, but it is inefficient and impossible to implement unified standards.In addition, if general operations are used for concealed work during construction, it is almost impossible to accurately judge the quality of the construction, and the inspection operation is inconvenient, so the construction period is extended and the quality of the construction cannot be ensured.

[0003] In recent years, technology has emerged that uses virtual 3D models of construction work to support construction quality control.

[0004] It should be noted that the introduction of the above technical background is merely provided to facilitate a clearer and more complete description of the technical solutions of the present invention and to facilitate understanding by those skilled in the art, and the mere fact that these solutions are described in the background of the present invention does not constitute an admission that the above technical solutions are publicly known by those skilled in the art. Summary of the Invention

[0005] However, the inventor discovered that manual inspection methods are inefficient and inaccurate, making it impossible to ensure uniform construction quality standards, and even if 3D models of construction work were introduced, the processing process would be complex and require a large amount of calculation, so the efficiency of inspection would still be low.

[0006] To address at least one of the above-mentioned problems, embodiments of the present invention provide a construction acceptance inspection method, apparatus, and system. This method establishes a first construction model at a construction site based on on-site detection data, compares the first construction model with a second construction model based on pre-established design data, and confirms the acceptance inspection results according to the comparison results. Because the model established based on actual on-site detection data is compared with the design model, the difference between the actual completed state of the construction and the desired design plan can be accurately reflected, resulting in highly accurate acceptance inspection results and enabling acceptance inspection according to unified standards. Furthermore, because the two models are directly compared, the processing process is simple and the acceptance inspection efficiency is high. Furthermore, the acceptance inspection results may be shared with users after they are obtained. This allows users away from the construction site to access the acceptance inspection results in a timely manner, improving the efficiency of the acceptance inspection and the convenience of the inspection, saving time and effort, and improving the user experience.

[0007] In a first aspect of an embodiment of the present invention, a construction inspection method is provided, including the steps of establishing a first construction model based on detection data at a construction site, comparing the first construction model with a second construction model based on pre-established construction design data to obtain a comparison result, confirming a construction inspection result according to the comparison result, and sharing the inspection result with a user.

[0008] In a second aspect of an embodiment of the present invention, a construction inspection device is provided that includes a modeling unit for establishing a first construction model based on detection data at a construction site, a comparison unit for comparing the first construction model with a second construction model based on pre-established construction design data to obtain a comparison result, a confirmation unit for confirming the result of the construction inspection based on the result of the comparison, and a sharing unit for sharing the inspection result with a user.

[0009] In a third aspect of an embodiment of the present invention, there is provided a construction acceptance system including a terminal device for acquiring detection data at a construction site, and a construction acceptance device described in the second aspect of an embodiment of the present invention for confirming the results of construction acceptance inspection based on the detection data at the construction site and a second construction model based on pre-established construction design data.

[0010] One beneficial effect of the present invention is as follows: At a construction site, a first construction model is established based on on-site detection data, and the first construction model is compared with a second construction model based on pre-established design data. The inspection result is confirmed based on the comparison result. Because the model established based on actual on-site detection data is compared with the design model, the difference between the actual completed state of the construction and the desired design plan can be accurately reflected, the inspection result is highly accurate, and the inspection can be performed according to a unified standard. Furthermore, because the two models are directly compared, the processing process is simple and the inspection efficiency is high. Furthermore, after the inspection results are obtained, the inspection results can be shared with the user. This allows users who are not at the construction site to obtain the inspection results in a timely manner, improving the efficiency of the inspection and the convenience of the inspection, saving time and effort, and improving the user experience.

[0011] In the following description and with reference to the drawings, particular embodiments of the present invention are disclosed in detail, and also show how the principles of the present invention are employed. It is to be understood that the embodiments of the present invention are not limited thereto. The embodiments of the present invention encompass many alternatives, modifications, and equivalents within the spirit and scope of the appended claims.

[0012] Feature information described and shown in one embodiment may be used in the same or similar manner in one or more other embodiments, may be combined with features of the other embodiments, or may be used in place of feature information of the other embodiments.

[0013] It should be emphasized that the term "comprises" is used in the present text to indicate the presence of a feature, integral element, step or component, but does not exclude the presence or addition of one or more other features, integral elements, steps or components. [Brief explanation of the drawings]

[0014] Many aspects of the present invention can be better understood with reference to the following accompanying drawings. The elements shown in the accompanying drawings are not drawn to scale, but are merely intended to illustrate the principles of the invention. Corresponding parts in the accompanying drawings may be enlarged or reduced in size for convenience in illustrating and describing the various parts of the present invention. Elements and features shown in one accompanying drawing or one embodiment of the present invention may be combined with elements and features shown in one or more other accompanying drawings or embodiments. Furthermore, in the accompanying drawings, like reference numerals indicate corresponding parts in several accompanying drawings and may also indicate corresponding parts used in more than one embodiment.

[0015] In the accompanying drawings: [Figure 1] 1 is a flowchart of a construction inspection method according to a first embodiment of the present invention. [Figure 2] 1 is a flowchart of a method for implementing step 101 using a laser radar signal in accordance with the first embodiment of the present invention; [Figure 3] 3 is a flowchart of a method for implementing step 101 using an image signal in accordance with the first embodiment of the present invention. [Figure 4] 1 is a schematic diagram illustrating detection data acquired by an AR device or an unmanned aerial vehicle according to a first embodiment of the present invention. [Figure 5] 1 is a flowchart of a method for implementing step 101 using a ground sensing radar signal in accordance with a first embodiment of the present invention; [Figure 6] FIG. 2 is a schematic diagram of a method for aligning a model in the first embodiment of the present invention. [Figure 7]FIG. 4 is a schematic diagram illustrating collision matching between the first construction model and the second construction model in the first embodiment of the present invention. [Figure 8] FIG. 10 is a schematic diagram showing how to mark components having variations in Example 1 of the present invention. [Figure 9] 1 is a flowchart of a method for implementing step 103 in the first embodiment of the present invention. [Figure 10] 1 is a flowchart of an air conditioner installation acceptance inspection method according to a first embodiment of the present invention. [Figure 11] 10 is another flowchart of the air conditioner installation acceptance inspection method according to the first embodiment of the present invention. [Figure 12] FIG. 6 is a schematic diagram of a construction inspection device according to a second embodiment of the present invention. [Figure 13] FIG. 10 is a structural diagram of a construction inspection system according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0016] Preferred embodiments of the present invention will now be described with reference to the drawings.

[0017] Example 1 A first embodiment of the present invention provides a construction acceptance inspection method. Figure 1 is a flowchart of the construction acceptance inspection method according to the first embodiment of the present invention. As shown in Figure 1, the method includes the following steps:

[0018] Step 101: Establishing a first construction model based on detection data at a construction site; Step 102: comparing the first construction model with a second construction model based on pre-established construction design data to obtain a comparison result; Step 103: Confirming the result of the construction acceptance inspection according to the result of the comparison; and Step 104: Share the inspection results with the user.

[0019] In this way, the model established based on actual on-site results is compared with the design model, accurately reflecting any discrepancies between the actual completed state of the project and the desired design plan. This ensures high accuracy in the inspection results and enables inspection according to a unified standard. Furthermore, since the two models are directly compared, the processing process is simple and inspection efficiency is high. Furthermore, once the inspection results are obtained, they can be shared with users. This allows users who are not on-site to obtain the inspection results in a timely manner, improving the efficiency of inspection and increasing the convenience of inspection, saving time and effort and improving the user experience.

[0020] In an embodiment of the present invention, the construction site may be a construction site, such as a site inside a building, or may be an outdoor site.

[0021] In an embodiment of the present invention, the construction acceptance inspection method may be used for the acceptance inspection of various construction works, such as the installation of an air conditioner, the construction of a building, or interior construction work.

[0022] In an embodiment of the present invention, the construction acceptance inspection method may be applied to each stage of construction, such as intermediate acceptance inspection or final acceptance inspection.

[0023] In step 101, a first construction model is established based on sensing data at the construction site.

[0024] In an embodiment of the present invention, the first construction model is used to simulate the currently completed construction site and all parts of the construction that are present at the construction site, and information about each part may be stored or marked in the first construction model.

[0025] For example, if the work is the installation of an air conditioner, the work may include at least one of the following components: an indoor unit, an outdoor unit, a refrigerant line, an electrical wiring line, a condensate line, and a control panel.

[0026] In an embodiment of the present invention, the part information may include various information related to the part, such as at least one of the position, angle, model number, size, name, identifier, color, category, number, brand, material, and surface finish of the part.

[0027] In an embodiment of the present invention, the sensing data may be various sensing data that can establish the first construction model, such as laser radar signals, image signals, or ground sensing radar signals.

[0028] For example, as shown in FIG. 1, the construction acceptance method may further include the following steps:

[0029] Step 105: Obtaining detection data at the construction site.

[0030] In an embodiment of the present invention, step 105 is an optional step in the construction acceptance method. For example, before the construction acceptance method is performed, detection data at the construction site may be obtained.

[0031] For example, the construction site is scanned by a laser radar sensor to obtain a returned laser radar signal, and a first construction model is established based on the returned laser radar signal.

[0032] In an embodiment of the present invention, the laser radar sensor may be provided in an augmented reality (AR) device, or may be provided in a virtual reality (VR) device, or may be provided in a mixed reality (MR) device.

[0033] In this way, by acquiring detection signals using AR equipment, VR equipment, or MR equipment and establishing a first construction model, the first construction model can be intuitively observed and subsequent model comparison and inspection can be facilitated.

[0034] In embodiments of the present invention, the AR device may be any type of AR device, such as AR glasses, a smartphone, a tablet, or a customized AR handheld device.

[0035] For example, a laser radar sensor attached to AR glasses transmits a laser radar signal to scan the entire construction site and acquires the laser radar signal returned to the sensor.

[0036] 2 is a flowchart of a method for implementing step 101 using a laser radar signal in embodiment 1 of the present invention. As shown in FIG. 2, the method includes the following steps:

[0037] Step 201: generating three-dimensional point cloud data based on the returned laser radar signal; and Step 202: Establishing the first construction model based on the three-dimensional point cloud data.

[0038] For specific modeling processes, please refer to the related prior art.

[0039] In the embodiment of the present invention, for example, the construction site may be photographed by an imaging device to obtain an image signal, and a first construction model may be established based on the image signal.

[0040] In an embodiment of the present invention, the imaging device may be installed on a drone or a robot. By using the drone or the robot to take images, the construction site can be photographed from multiple angles and in all directions. This ensures the accuracy of the established first construction model.

[0041] 3 is a flowchart of a method for implementing step 101 using an image signal in embodiment 1 of the present invention. As shown in FIG. 3, the method includes the following steps:

[0042] Step 301: Obtaining image data captured at multiple angles in the image signal; Step 302: Processing the image data captured at multiple angles to obtain omnidirectional image data; and Step 303: Establishing the first construction model based on the omnidirectional image data.

[0043] For example, image signals may be acquired by performing oblique photography measurement using a drone. For example, in the oblique photography measurement, five cameras mounted on the drone may capture images of a ground object from five directions (front, rear, left, right, and vertical) and then perform a series of processes such as geometric correction, balance adjustment, and multi-view image matching to obtain image data having omnidirectional information of the ground object. Then, a first construction model may be modeled based on the image data. For specific modeling processes, please refer to the related prior art.

[0044] 4 is a schematic diagram illustrating the acquisition of detection data by an AR device or a drone in the first embodiment of the present invention. As shown in Fig. 4, at a construction site, a worker wearing AR glasses scans the entire construction site and acquires the returned laser radar signal, or an image is acquired by photographing the construction site in all directions using a drone equipped with an imaging device.

[0045] In an embodiment of the present invention, a ground penetrating radar (GPR) device may be further used to transmit high-frequency electromagnetic waves to the construction site, obtain a returned electromagnetic signal, and establish a first construction model based on the returned electromagnetic signal. By establishing a first construction model using the ground penetrating radar signal, it is possible to model internal structures that cannot be observed from the outside, such as dark pipelines within walls or underground, and various equipment or structures enclosed by ceilings.

[0046] 5 is a flowchart of a method for using a ground sensing radar signal to achieve step 101 in embodiment 1 of the present invention. As shown in FIG. 5, the method includes the following steps:

[0047] Step 501: Extracting features of the returned electromagnetic signal; Step 502: Identifying information about the parts at the construction site based on the characteristics of the returned electromagnetic wave signal; and Step 503: Establishing the first construction model based on the information of the parts of the construction site.

[0048] For example, a transmitting antenna transmits high-frequency electromagnetic waves to a construction site, and a receiving antenna receives the reflected electromagnetic waves. When the electromagnetic waves encounter an electrically different boundary surface during propagation, they are reflected. According to the waveform, amplitude intensity, and time-varying characteristics of the received electromagnetic waves, the spatial position, structure, shape, and buried depth of the internal parts are inferred to obtain part information, and the first construction model is established based on the part information at the construction site. For specific modeling processes, please refer to the related prior art.

[0049] In an embodiment of the present invention, depending on the application scenario, it may be determined whether to use a laser radar signal, an image signal, or a ground sensing radar signal to establish the first construction model.

[0050] For example, if the construction work can be observed from the outside, a laser radar signal or an image signal may be used to establish the first construction model, but if the construction work cannot be observed from the outside, or if some parts of the construction work cannot be observed from the outside, a ground detection radar signal may be used to establish the first construction model.

[0051] For example, when installing a central air conditioner, if the air conditioner installation is completed and there is no ceiling, a first construction model may be established using a laser radar signal or an image signal, but if the air conditioner installation is completed and there is a ceiling, a first construction model may be established using a ground detection radar signal.

[0052] In an embodiment of the present invention, as described above, the information of the parts in the first construction model may include at least one of the position, angle, model number, size, name, identifier, color, category, number, brand, material, and surface accuracy of the part, and if some of the information cannot be directly obtained by the detection signal, it may be obtained in combination with other techniques.

[0053] For example, image signals can be input into a pre-established AI model for identification and to identify the material of a part.

[0054] In addition, in embodiments of the present invention, a first construction model may be established by combining various detection signals, for example, a laser radar signal and a ground sensing radar signal.

[0055] In an embodiment of the present invention, after establishing a first construction model, in step 102, the first construction model is compared with a second construction model based on pre-established construction design data to obtain a comparison result.

[0056] In an embodiment of the present invention, the second construction model is pre-established based on the design data of the construction, and may be various three-dimensional models, for example, a Building Information Model (BIM).

[0057] In an embodiment of the present invention, the second construction model includes information of all parts in the construction, and the part information may include various information related to the parts, such as at least one of the position, angle, model number, size, name, identifier, color, category, number, brand, material, and surface finish of the parts.

[0058] In an embodiment of the present invention, the data of the second construction model may be stored in advance in a terminal device, such as an AR device, used at the acceptance inspection site.

[0059] Alternatively, the data of the second construction model may be obtained by the terminal device from a server of a cloud terminal.

[0060] In an embodiment of the present invention, for example, as shown in FIG. 1, before step 102, the following steps may be further included.

[0061] Step 106: Positioning a second construction model at the construction site so that the second construction model is overlaid with the location where the construction will be performed, and displaying the second construction model with the augmented reality device. The first construction model and the results of the comparison may also be displayed with the augmented reality device.

[0062] In this way, by using an AR device, which is an augmented reality device, on-site to display a second construction model that matches the location of the construction site and the results of comparison with the established first construction model, the accuracy of inspection is improved and the differences between the two models, i.e., the results of the comparison, can be intuitively observed.

[0063] In an embodiment of the present invention, step 106 is an optional step.

[0064] In the embodiment of the present invention, the positioning of the second construction model at the construction site may not be performed, which improves the efficiency and flexibility of the site operation.

[0065] In the embodiments of the present invention, the positioning of the second construction model may be achieved by various methods.

[0066] For example, the construction may be positioned by two location points at the location where the construction is to be performed. The operation of positioning by two points is simple and suitable for a wide range of personnel. By simply establishing two points on the ground, the second construction model and the location where the construction is to be performed, for example, the building itself, can be positioned together.

[0067] Furthermore, for example, positioning may be performed by the wall at the location where the construction work is to be performed. Positioning by the wall is positioning using three points, which can further increase the accuracy of superimposing the second construction model and the location where the construction work is to be performed, thereby further improving the accuracy of inspection.

[0068] Furthermore, positioning may be performed by scanning a two-dimensional code installed at the location where the construction work is to be performed. For example, the two-dimensional code contains information about one wall at the location where the construction work is to be performed. This allows for greater accuracy in overlaying the second construction model with the location where the construction work is to be performed, further improving the accuracy of inspection. At the same time, the time required for point calibration is saved, further improving the accuracy of inspection.

[0069] Further, for example, location may be determined by a Geographic Information System (GIS).

[0070] In an embodiment of the present invention, the construction acceptance inspection method may further include a step of matching the coordinate points of the first construction model with the coordinate points of the second construction model, thereby improving the accuracy of the comparison result between the first construction model and the second construction model, and further improving the accuracy of the acceptance inspection.

[0071] For example, when the first construction model is established, the coordinate points of the first construction model can be matched with the coordinate points of the second construction model, so that after the first construction model is established, it can be directly compared with the second construction model, which simplifies the processing and further improves the efficiency of inspection.

[0072] Furthermore, for example, when comparing the first construction model with the second construction model, the coordinate points of the first construction model may be matched with the coordinate points of the second construction model, which eliminates the need for on-site alignment with the model and reduces manpower.

[0073] 6 is a schematic diagram of a method for aligning a model in Example 1 of the present invention. As shown in FIG. 6, the method includes the following steps:

[0074] Step 601: Identifying a bounding box of the first construction model and a bounding box of the second construction model; and Step 602: Overlaying the center point of the bounding box of the first construction model with the center point of the bounding box of the second construction model.

[0075] In step 102, the first construction model may be collision-matched with the second construction model to obtain a result of the comparison.

[0076] 7 is a schematic diagram of collision matching of the first construction model with the second construction model in Example 1 of the present invention. As shown in Fig. 7, 701 indicates the first construction model, 702 indicates the second construction model, and these two models are collision-matched to obtain a comparison result.

[0077] In step 102, the information of all parts in the first construction model may be compared point by point with the information of corresponding parts in the second construction model to identify parts with variations. For example, the IDs of the parts with variations may be recorded. The specific details of the variations may also be recorded.

[0078] For example, the information about the part may include at least one of the part's position, angle, model number, size, name, identifier, color, category, number, brand, material, and surface finish.

[0079] In an embodiment of the present invention, the construction inspection method may further include marking the parts with variations on the second construction model, and displaying the second construction model with the marked parts with variations using an augmented reality device, so that the parts with variations can be intuitively observed.

[0080] FIG. 8 is a schematic diagram showing marking of parts with variations in the first embodiment of the present invention. As shown in FIG. 8, parts 801 and 802 with variations are marked in the second construction model 702. Specific details of the variations may also be displayed at the same time. For example, the degree of variation in position or angle may be displayed.

[0081] After obtaining the comparison result, in step 103, the result of the construction inspection is confirmed according to the comparison result.

[0082] 9 is a flowchart of a method for implementing step 103 in embodiment 1 of the present invention. As shown in FIG. 9, the method includes the following steps:

[0083] Step 901: Comparing the variability to an acceptance standard; and Step 902: Generating a result of the acceptance according to the result of the comparison.

[0084] For example, if the positional variation is greater than the positional variation specified in the acceptance standard, the construction is confirmed to be defective, but if the positional variation is less than the positional variation specified in the acceptance standard, the construction is confirmed to have passed.

[0085] For various construction projects, different industry acceptance standards or acceptance standards set by manufacturers themselves may be used.

[0086] For example, for the installation of an air conditioner, the acceptance standards may include the air conditioner piping and wiring acceptance specifications, and the inspection items include the air conditioner, liquid pipes, gas pipes, support and lifting brackets, buckles, pipe joints, ducts, valves, etc.

[0087] For example, quality inspection items for air conditioners may include the device model number, spatial position, horizontal angle, and vertical angle. Here, the positional variation of the air conditioner must be within ±20 cm, and the angle variation must be within ±10°. Liquid and gas pipes must be fitted with insulation material, the positional variation of liquid and gas pipes must be within ±30 cm, and the angle inclination must comply with design requirements and not exceed 10% of the range. The spacing between support and lifting brackets must comply with design requirements and not exceed 20% of the designed spacing, and the inclination angle must not exceed 10%. The suspension legs must be fitted with shock-absorbing pads. Buckles must be secure and the number must comply with design requirements. Duct quality inspections are conducted according to material, processing, and system category, and must comply with design requirements, including the duct's material, specifications (radius, length), strength, and strictness. The valve must be installed in a position, at a height, and inlet / outlet direction in accordance with the design requirements, and the connection must be secure and tight.

[0088] In an embodiment of the present invention, the construction acceptance inspection method may further include displaying the inspection result using a virtual reality (VR) device. For example, the inspection result may be transmitted to the VR device and displayed on the construction site or remotely by the VR device, allowing a worker or a user to intuitively confirm the inspection result.

[0089] After obtaining the inspection result, the inspection result may be shared with a user in step 104. In an embodiment of the present invention, the user is a user who is not at the construction site at the time of the inspection.

[0090] For example, the inspection results may be sent to a server of a cloud terminal and shared with a specific user.

[0091] In an embodiment of the present invention, the particular user may be, for example, a client or other inspector who is not at the construction site.

[0092] Furthermore, in the embodiment of the present invention, the second construction model may be updated based on the result of the inspection.

[0093] In an embodiment of the present invention, the construction acceptance inspection method may be implemented by local processing, i.e., executed by a terminal device at the acceptance inspection site, for example, by an AR device.

[0094] Alternatively, the construction acceptance inspection method may be realized by processing on a cloud terminal, that is, may be executed by a server of the cloud terminal.

[0095] For example, a terminal device at an inspection site may transmit detection data to a server of a cloud terminal, and each step in the construction inspection method may be executed by the server of the cloud terminal.

[0096] The following will exemplify and explain in detail the processing at the cloud terminal and the processing at the local terminal according to the construction acceptance method, taking the installation of an air conditioner as an example.

[0097] 10 is a flowchart of an air conditioner installation acceptance inspection method according to the first embodiment of the present invention. As shown in FIG. 10, the method includes the following steps:

[0098] Step 1001: Starting a program installed in the AR device, and opening an item file related to a building in which an air conditioner is installed in a program item list; Step 1002: The program automatically loads the BIM model data of the building (e.g., the model format is .rvt, .fbx, etc.) including the building model and data, the air conditioner, and the air conditioner's piping and wiring data from the server of the cloud terminal; Step 1003: In the program, select the positioning function to position the BIM model (i.e., the second construction model) to the real building, thereby achieving the effect of superimposing the 3D virtual building and the real building. For example, the positioning can be performed by two-point positioning, wall positioning, or scanning a 2D code to position.

[0099] Step 1004: Moving the AR device along the air conditioner and / or the ducts and wiring of the air conditioner to be inspected, and using the lidar sensor in the AR device to measure the distance to the air conditioner and / or the ducts and wiring of the air conditioner, and acquiring scan data; Step 1005: Uploading the scan data to a cloud terminal, and processing the scan model by the cloud terminal to separate the air conditioner and the duct / wiring model; Step 1006: The server of the cloud terminal detects collisions between the BIM model of the air conditioner and the scanned model. If there are any discrepancies between the two, it records the ID of the corresponding part in the BIM model and records the cause of the discrepancy, such as variations in the angle of inclination, variations in position, or incorrect use of materials.

[0100] Step 1007: After the cloud terminal server has completed matching the model, it sends error information, such as the part IDs of the problematic BIM model, back to the AR device via the network and compares it with the acceptance standards. For parts that do not meet the acceptance standards, the AR device finds and marks the corresponding parts locally using the part IDs, and marks the problems with the differences between the construction and design in the model. This allows the inspector to clearly understand the differences between the construction content and the design content at a glance.

[0101] Step 1008: The inspection results are sent to the server of the cloud terminal in real time to share information, so that the owner and the construction team can view the inspection results in real time, which facilitates subsequent corrections to the inspection results and accelerates the inspection process.

[0102] As a result, the inspection process is mainly performed by the server of the cloud terminal, so the processing speed is fast and the demands on the processing power of the hardware of the AR device are low.

[0103] 11 is another flowchart of the air conditioner installation acceptance inspection method according to the first embodiment of the present invention. As shown in FIG. 11, the method includes the following steps:

[0104] Step 1101: Starting a program installed in the AR device, and opening an item file related to a building in which an air conditioner is installed in a program item list; Step 1102: The program automatically loads the BIM model data of the building (for example, the model format is .rvt, .fbx, etc.) including the building model and data, the air conditioner, and the air conditioner's piping and wiring data from the server of the cloud terminal; Step 1103: In the program, select the positioning function to position the BIM model (i.e., the second construction model) to the real building, thereby achieving the effect of superimposing the 3D virtual building and the real building. For example, positioning can be performed by two-point positioning, wall positioning, or scanning a 2D code to position.

[0105] Step 1104: Moving the AR device in accordance with the air conditioner and / or the ducts and wiring of the air conditioner to be inspected, and using the lidar sensor in the AR device to measure the distance to and model the air conditioner and / or the ducts and wiring of the air conditioner, thereby acquiring and saving a first construction model which is a scan model of the air conditioner in the real space; Step 1105: Collision-detect the BIM model of the air conditioner with the scanned model. If there are any discrepancies between the two, record the ID of the corresponding part in the BIM model, and record the cause of the discrepancy, such as variations in the angle of inclination, variations in position, or incorrect use of materials.

[0106] Step 1106: After the model matching is complete, the error information, such as the BIM part IDs where there were problems, is compared with the acceptance standards. For those that do not meet the acceptance standards, the AR device finds and marks the corresponding parts locally from the part IDs, and marks the problems of the differences between the construction and design in the model. This allows the inspector to understand the differences between the construction content and the design content at a glance.

[0107] Step 1107: The inspection results are sent to the cloud terminal server in real time to share information, allowing the owner and construction team to view the inspection results in real time, facilitating subsequent corrections to the inspection results and accelerating the inspection process.

[0108] This allows the system to be adapted to various network conditions, since the acceptance process is mainly performed by the local terminal device.

[0109] As can be seen from the above-described embodiment, a first construction model is established at a construction site based on on-site detection data, and the first construction model is compared with a second construction model based on pre-established design data. The inspection results are then confirmed based on the comparison results. Because the model established based on actual on-site detection data is compared with the design model, the difference between the actual completed state of the construction and the desired design plan can be accurately reflected, the inspection results are highly accurate, and the inspection can be performed according to a unified standard. Furthermore, because the two models are directly compared, the processing process is simple and the inspection efficiency is high. Furthermore, the inspection results can be shared with users after they are obtained. This allows users away from the construction site to receive the inspection results in a timely manner, improving the efficiency of the inspection and the convenience of the inspection, saving time and effort, and improving the user experience.

[0110] <Example 2> Example 2 of the present invention provides a construction inspection device corresponding to the construction inspection method described in Example 1, and for its specific implementation, reference may be made to the implementation of the method described in Example 1, and explanations of the same or related contents will be omitted.

[0111] FIG. 12 is a schematic diagram of a construction inspection device according to a second embodiment of the present invention. As shown in FIG. 12, the construction inspection device 1200 includes: a modeling unit 1201 for establishing a first construction model based on the detection data at the construction site; a comparison unit 1202 for comparing the first construction model with a second construction model based on pre-established construction design data to obtain a comparison result; a confirmation unit 1203 for confirming the result of the inspection of the construction work according to the result of the comparison; and a sharing unit 1204 for sharing the inspection results with the user.

[0112] In an embodiment of the present invention, the construction acceptance inspection device 1200 may be installed in a terminal device and / or a server of a cloud terminal.

[0113] In the embodiment of the present invention, the functions of the above-mentioned means may be realized by referring to the contents of the related steps in the first embodiment, and the description thereof will be omitted here.

[0114] As can be seen from the above-described embodiment, a first construction model is established at a construction site based on on-site detection data, and the first construction model is compared with a second construction model based on pre-established design data. The inspection results are then confirmed based on the comparison results. Because the model established based on actual on-site detection data is compared with the design model, the difference between the actual completed state of the construction and the desired design plan can be accurately reflected, the inspection results are highly accurate, and the inspection can be performed according to a unified standard. Furthermore, because the two models are directly compared, the processing process is simple and the inspection efficiency is high. Furthermore, the inspection results can be shared with users after they are obtained. This allows users away from the construction site to receive the inspection results in a timely manner, improving the efficiency of the inspection and the convenience of the inspection, saving time and effort, and improving the user experience.

[0115] Example 3 Example 3 of the present invention provides a construction inspection system including the construction inspection device described in Example 2, and for its specific implementation, reference may be made to the implementation of the device described in Example 2 and the method described in Example 1, and explanations of the same or related contents will be omitted.

[0116] FIG. 13 is a structural diagram of a construction acceptance system according to a third embodiment of the present invention. As shown in FIG. 13, the construction acceptance system 1300 includes: a terminal device 1301 for acquiring detection data at the construction site; and The construction site inspection device 1302 confirms the results of construction inspection based on the detection data at the construction site and a second construction model based on pre-established construction design data.

[0117] As shown in FIG. 13, the construction inspection system 1300 includes: The system may further include a server 1303 of a cloud terminal that stores data of the second construction model.

[0118] In an embodiment of the present invention, the server 1303 may receive the results of the construction inspection and share them with a specific user.

[0119] In an embodiment of the present invention, the construction acceptance device 1302 may be a separate device, or may be integrated into the terminal device 1301 and / or the server 1303 of the cloud terminal.

[0120] In this embodiment of the present invention, the specific structure and function of the construction inspection device 1302 may refer to the implementation of the device described in Example 2 and the method described in Example 1, and the description will be omitted here.

[0121] As can be seen from the above-described embodiment, a first construction model is established at a construction site based on on-site detection data, and the first construction model is compared with a second construction model based on pre-established design data. The inspection results are then confirmed based on the comparison results. Because the model established based on actual on-site detection data is compared with the design model, the difference between the actual completed state of the construction and the desired design plan can be accurately reflected, the inspection results are highly accurate, and the inspection can be performed according to a unified standard. Furthermore, because the two models are directly compared, the processing process is simple and the inspection efficiency is high. Furthermore, the inspection results can be shared with users after they are obtained. This allows users away from the construction site to receive the inspection results in a timely manner, improving the efficiency of the inspection and the convenience of the inspection, saving time and effort, and improving the user experience.

[0122] The above-mentioned devices and methods in the embodiments of the present invention may be realized by hardware or a combination of hardware and software. The present invention relates to a computer-readable program as follows: When the program is executed by a logic unit, the logic unit can realize the above-mentioned devices or components, or can realize the above-mentioned various methods or steps.

[0123] The embodiment of the present invention relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.

[0124] It should be noted that the limitations on each step of the present solution do not affect the implementation of the specific solution, and the order of the steps should not be considered as being limited, and the steps listed earlier may be performed first, later, or even simultaneously. Anything that can be implemented in the present solution should be considered to fall within the scope of protection of the present application.

[0125] The present invention has been described above in connection with specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and do not limit the scope of protection of the present invention. Those skilled in the art can make various modifications and alterations to the present invention based on the spirit and principle of the present invention, and these modifications and alterations also fall within the scope of the present invention.

Claims

1. A construction inspection support method performed by a construction inspection support device, comprising: establishing a first construction model based on the sensing data at the construction site; comparing the first construction model with a second construction model based on pre-established construction design data to obtain a comparison result; confirming the result of the construction acceptance inspection according to the result of the comparison; and Sharing the inspection results with the user; Including, The first construction model is an air conditioner scan model in a real space, and the air conditioner scan model is obtained by uploading the detection data to a cloud terminal, processing the scan model by the cloud terminal, and removing the air conditioner and piping / wiring portions; The second construction model is a BIM model of an air conditioner, The step of comparing the first construction model with a second construction model based on pre-established construction design data to obtain a comparison result includes: collision-matching the first construction model with the second construction model to obtain a result of the comparison; When a mismatch occurs between the two, the ID of the corresponding part in the BIM model is recorded, and the cause of the mismatch is also recorded. Construction inspection support methods.

2. acquiring the detection data; further comprising The step of obtaining the detection data includes: scanning the construction site with a laser radar sensor and obtaining a returned laser radar signal; or Photographing the construction site with an imaging device to obtain an image signal; or transmitting high frequency electromagnetic waves to the construction site using a ground detection radar device and acquiring a returned electromagnetic wave signal; characterized in that it comprises The construction inspection support method according to claim 1.

3. the laser radar sensor is provided in an augmented reality device; and / or The imaging device is provided on an unmanned aerial vehicle or a robot. characterized in that The construction inspection support method according to claim 2.

4. Establishing a first construction model based on detected data at the construction site includes: generating three-dimensional point cloud data based on the returned laser radar signals; and establishing the first construction model based on the three-dimensional point cloud data; characterized in that it comprises The construction inspection support method according to claim 2.

5. Establishing a first construction model based on detected data at the construction site includes: acquiring image data captured at multiple angles in the image signal; processing the image data captured at multiple angles to obtain omnidirectional image data; and establishing the first construction model based on the omnidirectional image data; characterized in that it comprises The construction inspection support method according to claim 2.

6. Establishing a first construction model based on detected data at the construction site includes: extracting features of the returned electromagnetic signal; Identifying information about the components at the construction site based on the characteristics of the returned electromagnetic wave signal; establishing the first construction model based on the information of the construction site components; characterized in that it comprises The construction inspection support method according to claim 2.

7. Before comparing the first construction model with the second construction model, the construction inspection support method includes: The method further includes positioning the second construction model at a construction site so that the second construction model is superimposed on a location where construction is to be performed, and displaying the second construction model using an augmented reality device. The construction inspection support method according to claim 1.

8. displaying the first construction model and the results of the comparison by the augmented reality device; further comprising: The construction inspection support method according to claim 7.

9. The step of positioning the second construction model at a construction site comprises: Locating by two location points at the location where the work is to be performed; or Positioning the work by a wall edge at the location where the work is to be performed; or a step of locating the work site by scanning a two-dimensional code installed at the site where the work is to be performed; characterized in that it comprises The construction inspection support method according to claim 7.

10. a step of matching the coordinate points of the first construction model to coincide with the coordinate points of the second construction model; further comprising: The construction inspection support method according to claim 1.

11. The step of matching the coordinate points of the first construction model to coincide with the coordinate points of the second construction model includes: before establishing the first construction model, matching coordinate points of the first construction model to coincide with coordinate points of the second construction model; or a step of matching the first construction model with the second construction model so that coordinate points of the first construction model coincide with coordinate points of the second construction model; characterized in that it comprises The construction inspection support method according to claim 10.

12. The step of matching the first construction model with the second construction model so that coordinate points of the first construction model coincide with coordinate points of the second construction model includes: identifying a bounding box of the first construction model and a bounding box of the second construction model; and overlapping a center point of a bounding box of the first construction model with a center point of a bounding box of the second construction model; characterized in that it comprises The construction inspection support method according to claim 11.

13. The step of comparing the first construction model with a second construction model based on pre-established construction design data to obtain a comparison result includes: and comparing the information of all parts in the first construction model with the information of corresponding parts in the second construction model one by one to identify parts with variations. The construction inspection support method according to claim 1.

14. The information on the part includes at least one of a position, an angle, a model number, a size, a name, an identifier, a color, a category, a number, a brand, a material, and a surface accuracy of the part. The construction inspection support method according to claim 13.

15. marking the parts having the variations in the second construction model; and displaying the second construction model with the marked parts having variations using an augmented reality device; further comprising: The construction inspection support method according to claim 13.

16. The step of confirming the result of the construction inspection according to the result of the comparison includes: comparing the variability to an acceptance standard; and generating a result of said acceptance in response to a result of the comparison; characterized in that it comprises The construction inspection support method according to claim 13.

17. displaying the inspection result using a virtual reality device; Further comprising: The construction inspection support method according to claim 1.

18. Further comprising a step of updating the second construction model based on the result of the inspection. The construction inspection support method according to claim 1.

19. a modeling unit for establishing a first construction model based on the detection data at the construction site; a comparison unit for comparing the first construction model with a second construction model based on pre-established construction design data to obtain a comparison result; A confirmation unit for confirming the result of the inspection of the construction work according to the result of the comparison; a sharing unit for sharing the inspection result with a user; Equipped with The first construction model is an air conditioner scan model in a real space, and the air conditioner scan model is obtained by uploading the detection data to a cloud terminal, processing the scan model by the cloud terminal, and removing the air conditioner and piping / wiring portions; The second construction model is a BIM model of an air conditioner, The comparison unit collision-matching the first construction model with the second construction model to obtain a result of the comparison; When a mismatch occurs between the two, the ID of the corresponding part in the BIM model is recorded, and the cause of the mismatch is also recorded. Construction inspection support device.

20. Terminal equipment for acquiring detection data at the construction site; and The construction inspection support device according to claim 19, wherein the construction inspection result is confirmed based on the detection data at the construction site and a second construction model based on pre-established construction design data. characterized in that it comprises Construction inspection support system.

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