Construction data management method and system for energy saving and emission reduction

Abstract

The present invention relates to the technical field of energy conservation and emission reduction, and specifically to a construction data management method and system for energy conservation and emission reduction. The method includes establishing a BIM model of a target building according to a construction drawing; entering the actual geometric feature data of each building component into the database of each building component corresponding to the BIM model of the target building; obtaining the error values ​​corresponding to all geometric feature parameter items of the building component; and then performing a first feature marking process in the building component; and calculating the component connection error value at the construction connection corresponding to the building component combination; comparing the component connection error value with a set component connection error parameter threshold to determine whether to issue an early warning prompt to the building component combination. The present invention is conducive to improving design efficiency, predicting and controlling prefabricated electromechanical construction errors, effectively giving play to the advantages of prefabricated electromechanical green and low-carbon construction, improving construction efficiency and economic benefits, and ultimately achieving the effect of energy conservation and emission reduction.

Description

Technical Field

[0001] The present invention relates to the technical field of energy conservation and emission reduction, and in particular to a construction data management method and system for energy conservation and emission reduction. Background Art

[0002] Over the past few decades, the construction industry has developed rapidly. While the construction volume has surged, my country has paid a high price for resources and the environment. More than 3 billion tons of construction waste are produced each year, accounting for about 40% of the total urban waste. Most of them are non-degradable, but there are few high-quality buildings. Therefore, it is necessary to vigorously develop prefabricated buildings, accelerate the promotion of construction industrialization, promote the improvement of construction quality, and promote the transformation and upgrading of the industry and sustainable development.

[0003] However, there are many practices in prefabricated electromechanical construction at present. However, due to various factors such as the complexity of electromechanical models and components, insufficient information exchange among all parties in the project, and errors in production, the installation site often has large assembly deviations and cannot be effectively corrected, so it can only be cut and re-welded, which greatly affects the construction efficiency and assembly cost, and limits the further promotion and implementation of prefabricated electromechanical construction. Summary of the invention

[0004] The purpose of the present invention is to provide a construction data management method and system for energy conservation and emission reduction, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The construction data management method for energy conservation and emission reduction includes the following steps:

[0007] Obtain construction drawings and build a BIM model of the target building based on the construction drawings;

[0008] Build the target building according to the construction drawings and the BIM model of the target building, measure the actual geometric feature data of each building component that constitutes the target building during the actual construction process, and enter the actual geometric feature data of each building component into the database of each building component corresponding to the BIM model of the target building;

[0009] Compare the actual geometric feature data of the building components of the target building with the standard geometric feature data set in the building component database corresponding to the building BIM model to obtain the error values ​​corresponding to all geometric feature parameter items of the building components;

[0010] According to the obtained error values ​​corresponding to all geometric feature parameter items of the building component, a first feature marking process is performed in the building component;

[0011] According to the construction drawings and the BIM model of the target building, all building component combinations with building connection relationships are obtained, and the construction connections between all building component combinations are extracted. According to the construction connections and the building components subjected to the first feature marking process, the second feature marking process is performed on the construction connections, and the component connection error values ​​of all the construction connections subjected to the second feature marking process are calculated;

[0012] If the component connection error values ​​of all construction connections of the building component combination are not all less than or equal to the set component connection error parameter threshold of the construction connection, an early warning prompt is given to the building component combination.

[0013] Furthermore, the specific formula for calculating the error value corresponding to any geometric characteristic parameter item of each component is:

[0014] ΔS i =S i -C i

[0015] Among them, ΔS i is the error value corresponding to the i-th geometric characteristic parameter item of any building component, S i is the actual geometric feature data corresponding to the i-th geometric feature parameter item of any building component, C i It is the standard geometric feature data set in the building component database corresponding to the i-th geometric feature parameter item of any building component under the building BIM model.

[0016] Furthermore, the steps of performing the first feature marking process in the building component are as follows:

[0017] If the error value corresponding to any geometric characteristic parameter item of a certain building component is outside the corresponding preset allowable deviation range, the certain building component is judged to be unqualified;

[0018] If the error values ​​corresponding to all geometric feature parameter items of a certain building component are within the corresponding preset allowable deviation range, and the error values ​​are not all zero, then the first feature marking process is performed on the certain building component;

[0019] The above-mentioned first feature marking processing for a certain building component is because in the actual process of constructing the building component, the error value corresponding to the geometric feature parameter item of the building component is easy to have errors compared with the standard geometric feature data set by the building BIM model. In order to make further judgments on such building components that have errors with the building BIM model but are within the corresponding pre-set allowable deviation range, the building component is subjected to the first feature marking processing.

[0020] Furthermore, the steps of performing the second feature marking process at the construction connection are as follows:

[0021] According to the construction drawings and the BIM model of the target building, all building component combinations consisting of two or more building components in the target building are obtained, and construction connections between all building component combinations having building connection relationships are extracted;

[0022] If among the building components corresponding to a certain extracted construction connection, there is at least one building component that is subjected to the first feature marking process and there are no unqualified building components, the certain construction connection is subjected to the second feature marking process.

[0023] The above-mentioned second feature marking treatment for the construction connection is because in the actual process of constructing building components, although the building components processed with the first feature marking under the building component combination meet the specifications compared with the building BIM model, the composed building component combination does not necessarily meet the specifications and needs further judgment, so the construction connection is processed with the second feature marking.

[0024] Furthermore, the process of calculating the component connection error value at a construction connection processed by a second feature mark is as follows:

[0025] Calculate the average error value of the geometric feature parameter item at a construction connection processed by a second feature mark, and the calculation formula is:

[0026]

[0027] in, is the average error value of the geometric characteristic parameter item of the construction connection processed by the second characteristic mark, ΔS k is the error value corresponding to the kth geometric feature parameter item involved in a construction connection processed by a second feature mark, and N is the total number of geometric feature parameter items of a construction connection processed by a second feature mark;

[0028] Calculate the component connection error value at a construction connection processed by a second feature mark, and the calculation formula is:

[0029]

[0030] Where μ is the component connection error value of a construction connection processed by a second feature mark, N is the total number of geometric feature parameter items of a construction connection processed by a second feature mark, ΔS k is the error value corresponding to the kth geometric feature parameter item at the construction connection involved in a second feature marking process, The average error value of the geometric feature parameter items at the construction connection processed by a second feature marking.

[0031] Construction data management system for energy conservation and emission reduction, including the following modules:

[0032] A model building module is used to build a BIM model of the target building according to the construction drawings;

[0033] The data entry module is used to build the target building according to the construction drawings and the BIM model of the target building, and measure the actual geometric feature data of each building component constituting the target building during the actual construction process, and enter the actual geometric feature data of each building component into the database of each building component corresponding to the BIM model of the target building;

[0034] The component geometric feature error value calculation module is used to compare the actual geometric feature data of the building components of the target building with the standard geometric feature data set in the building component database corresponding to the building BIM model to obtain the error values ​​corresponding to all geometric feature parameter items of the building components;

[0035] A component feature marking module, used for performing a first feature marking process in the building component according to the error values ​​corresponding to all geometric feature parameter items of the building component obtained;

[0036] A component connection error value calculation module is used to obtain all building component combinations with building connection relationships according to the construction drawings and the BIM model of the target building, and extract the construction connections between all building component combinations, and perform a second feature marking process on the construction connection according to the construction connection and the building components subjected to the first feature marking process, and calculate the component connection error values ​​of all the construction connections subjected to the second feature marking process;

[0037] The early warning prompt module is used to compare the component connection error values ​​of all construction connections of the building component combination with the component connection error parameter threshold set at the construction connection, and determine whether to issue an early warning prompt for the building component combination.

[0038] Furthermore, the component geometric feature error value calculation module is used to calculate the error value corresponding to any geometric feature parameter item of each component. The specific formula is:

[0039] ΔS i =S i -C i

[0040] Among them, ΔS i is the error value corresponding to the i-th geometric characteristic parameter item of any building component, S i is the actual geometric feature data corresponding to the i-th geometric feature parameter item of any building component, C iIt is the standard geometric feature data set in the building component database corresponding to the i-th geometric feature parameter item of any building component under the building BIM model.

[0041] Furthermore, the component feature marking module includes the following units:

[0042] The component unqualified judgment unit is used to compare the error value corresponding to any geometric characteristic parameter item of a certain building component with the corresponding preset allowable deviation range to determine whether a certain building component is unqualified;

[0043] The component feature marking unit is used to judge whether a certain building component should be subjected to the first feature marking process by comparing the error values ​​corresponding to all geometric feature parameter items of a certain building component with the corresponding preset allowable deviation range and whether the error values ​​meet the condition that they are not all zero.

[0044] Furthermore, the component connection error value calculation module includes the following units:

[0045] Extracting construction connection units, for obtaining all building component combinations consisting of two or more building components in the target building according to the construction drawings and the BIM model of the target building, and extracting construction connections having building connection relationships between all building component combinations;

[0046] The construction connection marking unit is used to determine whether each building component corresponding to a certain extracted construction connection satisfies the conditions that there is at least one building component for first feature marking and there are no unqualified building components, and whether a certain construction connection is to be subjected to second feature marking.

[0047] Furthermore, the component connection error value calculation module is used to calculate the component connection error value, specifically:

[0048] Calculate the average error value of the geometric feature parameter item at a construction connection processed by a second feature mark, and the calculation formula is:

[0049]

[0050] in, is the average error value of the geometric characteristic parameter item of the construction connection processed by the second characteristic mark, ΔS k is the error value corresponding to the kth geometric feature parameter item involved in a construction connection processed by a second feature mark, and N is the total number of geometric feature parameter items of a construction connection processed by a second feature mark;

[0051] Calculate the component connection error value at a construction connection processed by a second feature mark, and the calculation formula is:

[0052]

[0053] Where μ is the component connection error value of a construction connection processed by a second feature mark, N is the total number of geometric feature parameter items of a construction connection processed by a second feature mark, ΔS k is the error value corresponding to the kth geometric feature parameter item involved in a construction connection processed by a second feature mark, The average error value of the geometric feature parameter items at the construction connection processed by a second feature marking.

[0054] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: this project establishes a BIM model of the target building according to the construction drawings; enters the actual geometric feature data of each building component into the database of each building component corresponding to the BIM model of the target building; obtains the error values ​​corresponding to all geometric feature parameter items of the building component; then performs the first feature marking process in the building component; and calculates the component connection error value at the construction connection corresponding to the building component combination; compares the component connection error value with the set component connection error parameter threshold to determine whether to issue an early warning prompt for the building component combination. The present invention is conducive to improving design efficiency, predicting and controlling prefabricated electromechanical construction errors, effectively giving play to the advantages of prefabricated electromechanical green and low-carbon construction, improving construction efficiency and economic benefits, and ultimately achieving the effect of energy conservation and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0056] Figure 1 It is a flow chart of the construction data management method for energy saving and emission reduction of the present invention;

[0057] Figure 2 It is a structural diagram of the construction data management system for energy conservation and emission reduction of the present invention;

[0058] Figure 3 It is a schematic diagram of the construction connection structure in the construction data management method for energy conservation and emission reduction of the present invention. DETAILED DESCRIPTION

[0059] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0060] See also Figure 1-Figure 3 The present invention provides a construction data management method and system for energy conservation and emission reduction. The corresponding flowchart of the construction data management method for energy conservation and emission reduction is as follows: Figure 1 As shown. The following steps are included:

[0061] Step S1: Obtain construction drawings and establish a BIM model of the target building according to the construction drawings;

[0062] Obtain construction drawings, which should include detailed information on the building components of each building, including but not limited to space, location, shape, angle and size information. Establish a self-developed BIM collaborative design cloud platform, which can support multiple people to view, edit, modify and delete the BIM collaborative design cloud platform data online at the same time, so that information can be transmitted more efficiently and conveniently when data is modified.

[0063] Then, the target building BIM model of the construction site is established according to the space, position, shape, angle and size information of the building components of the target building in the construction drawings. The building BIM model assembles each component in the 3D coordinate system, with the X-axis coordinate in the X, Y, and Z axes as the horizontal coordinate of the building BIM model, the Y-axis coordinate as the vertical coordinate of the building BIM model, and the Z-axis coordinate as the height coordinate of the building BIM model. Each building component of the building BIM model should be designed strictly in accordance with the shape, angle and size information of each component in the construction drawings, and the standard geometric feature data of each building component in the construction drawings should be entered in detail and accurately into each building component database corresponding to the target building BIM model. In addition, since the actual geometric features of each building component and the standard geometric features must have deviations in the actual construction of the building components in step S2 of this embodiment, the scope of the deviation between the actual geometric features of each building component and the standard geometric features is recorded as the allowable deviation range in this embodiment, and the allowable deviation range of each building component is entered into the corresponding building BIM building model database respectively.

[0064] It should be noted that the geometric feature in this embodiment refers to the size of the wall lines. The reason for selecting the size of the wall lines as the geometric feature is that the reason for the large deviation between the component and the component with which it has a building connection during on-site construction is mainly due to the mismatch in size between the component and the component with which it has a building connection. Similarly, if the deviation between the component and the component with which it has a building connection is too large due to reasons such as angles, it is also applicable to the present invention.

[0065] Step S2: Build the target building according to the construction drawings and the BIM model of the target building, measure the actual geometric feature data of each building component that constitutes the target building during the actual construction process, and enter the actual geometric feature data of each building component into the database of each building component corresponding to the BIM model of the target building.

[0066] According to the shape, angle and size data information of each building component in the building BIM model obtained in step S1, each component of the target building is built in the factory in strict accordance with the shape, angle and size data information of each building component. After each component is produced, the actual size of each building component produced is measured by a professional measuring tool, such as a laser rangefinder or a level to ensure the accuracy of the measurement data. Similarly, the actual size data of each building component is respectively entered into the corresponding building component database under the target building BIM model.

[0067] Step S3: Compare the actual geometric feature data of the building components of the target building with the standard geometric feature data set in the building component database corresponding to the building BIM model to obtain error values ​​corresponding to all geometric feature parameter items of the building components.

[0068] Since each component has a standard size in the building component corresponding to the building BIM model, and there is an allowable deviation between each component and the building BIM model, this embodiment compares the actual size of the wall line of the component itself with the standard size of the building component corresponding to each component in the building BIM model to obtain the error value corresponding to any geometric feature parameter item of each component. The specific formula for calculating the error value corresponding to any geometric feature parameter item of each component is:

[0069] ΔS i =S i -C i

[0070] Among them, ΔS i is the error value corresponding to the i-th geometric characteristic parameter item of any building component, S i is the actual geometric feature data corresponding to the i-th geometric feature parameter item of any building component, C i It is the standard geometric feature data set in the building component database corresponding to the i-th geometric feature parameter item of any building component under the building BIM model.

[0071] Step S4: performing a first feature marking process on the building component according to the obtained error values ​​corresponding to all geometric feature parameter items of the building component.

[0072] Step S41: If the error value corresponding to any geometric characteristic parameter item of a certain building component is outside the corresponding preset allowable deviation range, the certain building component is determined to be unqualified.

[0073] During on-site construction, there may be a phenomenon of excessive size deviation between a component and a component with a building connection relationship. The reason for this phenomenon is that the size of each component itself has a large error compared with the building BIM model. Therefore, the present invention regards the component itself as an unqualified building component if the difference between the component itself and the building BIM model is large. Specifically, the error values ​​corresponding to all geometric feature parameter items of the building component obtained in step S3 of the embodiment are compared with the set allowable deviation range. If there is an error value corresponding to any geometric feature parameter item of a certain building component, which is outside the corresponding preset allowable deviation range, the certain building component is judged to be unqualified.

[0074] Step S42: If the error values ​​corresponding to all geometric feature parameter items of a certain building component are within the corresponding preset allowable deviation range, and the error values ​​are not all zero, a first feature marking process is performed on the certain building component.

[0075] Since in the process of actually building building components, the error values ​​corresponding to the geometric feature parameter items of the building components are prone to errors compared with the standard geometric feature data set by the building BIM model, in order to further judge such building components that have errors with the building BIM model but are all within the corresponding pre-set allowable deviation range, the building components are subjected to the first feature marking process. Here, if the error values ​​corresponding to the geometric feature parameter items are all zero, it means that the component meets the setting conditions of the building BIM model, and there is no need to further judge the following steps for this building component. For example: in the building BIM model, the standard length of a certain wall is set to 3550mm, and the allowable deviation range of the wall is ±5mm, then the production of a wall with an actual length of 3552mm meets the above requirements, and the wall is subjected to the first feature marking process. The first feature marking process for a certain building component is specifically: if the error values ​​corresponding to all the geometric feature parameter items of a certain building component are all within the corresponding pre-set allowable deviation range, and the error values ​​are not all zero, then the first feature marking process is performed on the certain building component.

[0076] Step S5: According to the construction drawings and the BIM model of the target building, all building component combinations with building connection relationships are obtained, and the construction connections between all building component combinations are extracted. According to the construction connections and the building components subjected to the first feature marking processing, the second feature marking processing is performed on the construction connections, and the component connection error values ​​of all the construction connections subjected to the second feature marking processing are calculated.

[0077] Step S51: according to the construction drawings and the BIM model of the target building, all building component combinations consisting of two or more building components in the target building are obtained, and construction connections having building connection relationships between all building component combinations are extracted.

[0078] According to the construction drawings and the BIM model of the target building, all building component combinations consisting of two or more building components in the target building are obtained, such as the construction joints. Figure 3 As shown, there is a building connection between building component a and building component b, that is, building component a and building component b constitute a building component combination, and the part where there is a building connection relationship between building component a and building component b is the construction connection.

[0079] Step S52: If among the building components corresponding to a certain construction connection point extracted, there is at least one building component that is subjected to the first feature marking process and there is no unqualified building component, the certain construction connection point is subjected to the second feature marking process.

[0080] The second feature marking is applied to the construction joints because in the actual process of building components, although the building components with the first feature marking under the combination of building components meet the specifications compared with the building BIM model, the combination of building components does not necessarily meet the specifications and further judgment is required, so the construction joints are marked with the second feature. Figure 3 As shown, the building components a and b corresponding to the construction connection are obtained, and at least one of the building components a and b is a building component for the first feature marking process, and both the building components a and b are not unqualified building components, then Figure 3 The construction connection shown is subjected to a second characteristic marking process.

[0081] Step S53: Calculate the component connection error value at a construction connection processed by a second feature mark.

[0082] Since the mismatch of the sizes of the various building components in the building component combination during on-site construction directly affects the component installation, it is often seen in the wall-to-wall connection of the various building components in the building component combination. The wall-to-wall connection of the various building components in the building component combination is specifically divided into line-to-line connection between the various building components in the building component combination, including but not limited to water and electricity pipeline connection, line connection between walls, etc. In this embodiment, the line-to-line connection between the various building components in the building component combination is used as the main way for errors to occur between the various building components in the building component combination. The present invention uses the average error value It is used to represent the actual geometric features of the construction joints, and compare the conformity of the standard geometric features corresponding to the building BIM model, and the average error value. The closer it is to 0, the more the construction connection conforms to the standard geometric features corresponding to the building BIM model. The formula is:

[0083]

[0084] in, is the average error value of the geometric characteristic parameter item of the construction connection processed by the second characteristic mark, ΔS k is the error value corresponding to the kth geometric feature parameter item involved in a construction connection processed by a second feature mark, and N is the total number of geometric feature parameter items of a construction connection processed by a second feature mark.

[0085] The formula for the component connection error value at the construction connection processed by a second characteristic mark obtained above is:

[0086]

[0087] Where μ is the component connection error value of a construction connection processed by a second feature mark, N is the total number of geometric feature parameter items of a construction connection processed by a second feature mark, ΔS k is the error value corresponding to the kth geometric feature parameter item involved in a construction connection processed by a second feature mark, is the average error value of the geometric feature parameter item of the construction connection processed by the second feature mark. Among them, the error value ΔS k It can be negative or positive. When it is a negative number, it means that the actual geometric characteristic value of the component is smaller than the standard geometric characteristic value corresponding to the building BIM model. When it is a positive number, it means that the actual geometric characteristic value of the component is larger than the standard geometric characteristic value corresponding to the building BIM model. Figure 3 As shown, the error value corresponding to the actual geometric feature parameter item of building component a is smaller than the standard geometric feature data set in the building component database corresponding to the building BIM model, that is, S1 and S3 are negative numbers; the error value corresponding to the actual geometric feature parameter item of building component b is larger than the standard geometric feature data set in the building component database corresponding to the building BIM model, that is, S2 and S4 are positive numbers.

[0088] Step S6: If the component connection error values ​​of all construction connections of the building component assembly are not all less than or equal to the set component connection error parameter threshold of the construction connection, an early warning prompt is given to the building component assembly.

[0089] The component connection error value at the construction connection obtained in step S53 is compared with the set component connection error parameter threshold at the construction connection. If the component connection error values ​​at all construction connections of the building component combination are not all less than or equal to the set component connection error parameter threshold at the construction connection, an early warning prompt is given to the building component combination to help quickly locate the unreasonable building component combination. The component connection error parameter threshold at the specific construction connection can be adjusted according to actual conditions.

[0090] The research results of the present invention are conducive to improving design efficiency, predicting and controlling the errors of prefabricated electromechanical construction, effectively giving play to the advantages of prefabricated electromechanical green and low-carbon construction, improving construction efficiency and economic benefits, and ultimately achieving the effect of energy conservation and emission reduction. The method can design a design that meets the functional requirements.

[0091] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0092] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A construction data management method for energy conservation and emission reduction, characterized in that: The following steps are involved: Step S1: Obtain construction drawings and establish a BIM model of the target building according to the construction drawings; Step S2: constructing the target building according to the construction drawings and the BIM model of the target building, measuring the actual geometric feature data of each building component constituting the target building during the actual construction process, and entering the actual geometric feature data of each building component into the database of each building component corresponding to the BIM model of the target building; Step S3: Compare the actual geometric feature data of the building components of the target building with the standard geometric feature data set in the building component database corresponding to the building BIM model to obtain error values ​​corresponding to all geometric feature parameter items of the building components; The specific formula for calculating the error value corresponding to any geometric characteristic parameter item of each component is: ， in, For any building component The error value corresponding to the geometric feature parameter item is For any building component The actual geometric feature data corresponding to the geometric feature parameter items, For any building component The standard geometric feature data set in the building component database corresponding to each geometric feature parameter item in the building BIM model; Step S4: performing a first feature marking process in the building component according to the obtained error values ​​corresponding to all geometric feature parameter items of the building component; Step 4-1: If the error value corresponding to any geometric characteristic parameter item of a certain building component is outside the corresponding preset allowable deviation range, the certain building component is determined to be unqualified; Step 4-2: If the error values ​​corresponding to all geometric feature parameter items of a certain building component are within the corresponding preset allowable deviation range, and the error values ​​are not all zero, then a first feature marking process is performed on the certain building component; Step S5: according to the construction drawings and the BIM model of the target building, all building component combinations with building connection relationships are obtained, and the construction connections between all building component combinations are extracted, and according to the construction connections and the building components subjected to the first feature marking process, the second feature marking process is performed on the construction connections, and the component connection error values ​​of all the construction connections subjected to the second feature marking process are calculated; Step 5-1: According to the construction drawings and the BIM model of the target building, all building component combinations consisting of two or more building components in the target building are obtained, and construction connections between all building component combinations having a building connection relationship are extracted; Step 5-2: If among the building components corresponding to a certain construction connection point extracted, there is at least one building component that is subjected to the first feature marking process, and there is no unqualified building component, then the certain construction connection point is subjected to the second feature marking process; Calculate the average error value of the geometric feature parameter item at a construction connection processed by a second feature mark, and the calculation formula is: ， in, is the average error value of the geometric feature parameter item of the construction connection processed by the second feature mark, The construction connection involved in the second feature mark The error value corresponding to the geometric feature parameter item is The total number of geometric feature parameter items at the construction connection processed for a second feature mark; Calculate the component connection error value at a construction connection processed by a second feature mark, and the calculation formula is: ， in, The component connection error value at the construction connection processed by a second feature mark, The total number of geometric feature parameter items at the construction connection processed for a second feature mark, The construction connection involved in the second feature mark The error value corresponding to the geometric feature parameter item is The average error value of the geometric feature parameter item of the construction connection processed by a second feature mark; Step S6: If the component connection error values ​​of all construction connections of the building component assembly are not all less than or equal to the set component connection error parameter threshold of the construction connection, an early warning prompt is given to the building component assembly.

2. A construction data management system for executing the construction data management method for energy conservation and emission reduction as claimed in any one of claims 1, characterized in that: Includes the following modules: A model building module is used to build a BIM model of the target building according to the construction drawings; A data entry module is used to build the target building according to the construction drawings and the BIM model of the target building, and measure the actual geometric feature data of each building component constituting the target building during the actual construction process, and enter the actual geometric feature data of each building component into the database of each building component corresponding to the BIM model of the target building; The component geometric feature error value calculation module is used to compare the actual geometric feature data of the building components of the target building with the standard geometric feature data set in the building component database corresponding to the building BIM model to obtain the error values ​​corresponding to all geometric feature parameter items of the building components; A component feature marking module, used for performing a first feature marking process in the building component according to the error values ​​corresponding to all geometric feature parameter items of the building component obtained; A component connection error value calculation module is used to obtain all building component combinations with building connection relationships according to the construction drawings and the BIM model of the target building, and extract the construction connections between all building component combinations, and perform a second feature marking process on the construction connections according to the construction connections and the building components subjected to the first feature marking process, and calculate the component connection error values ​​of all the construction connections subjected to the second feature marking process; The early warning prompt module is used to compare the component connection error values ​​of all construction connections of the building component combination with the component connection error parameter threshold set at the construction connection, and determine whether to issue an early warning prompt for the building component combination.

3. The construction data management system according to claim 2, characterized in that: The component geometric feature error value calculation module is used to calculate the error value corresponding to any geometric feature parameter item of each component. The specific formula is: ， in, For any building component The error value corresponding to the geometric feature parameter item is For any building component The actual geometric feature data corresponding to the geometric feature parameter items, For any building component The geometric feature parameter items are the standard geometric feature data set in the building component database corresponding to the building BIM model.

4. The construction data management system according to claim 2, characterized in that: The component feature marking module includes the following units: The component unqualified judgment unit is used to compare the error value corresponding to any geometric characteristic parameter item of a certain building component with the corresponding preset allowable deviation range to determine whether a certain building component is unqualified; The component feature marking unit is used to judge whether a certain building component should be subjected to the first feature marking process by comparing the error values ​​corresponding to all geometric feature parameter items of a certain building component with the corresponding preset allowable deviation range and whether the error values ​​meet the condition that they are not all zero.

5. The construction data management system according to claim 2, characterized in that: The component connection error value calculation module includes the following units: Extracting construction connection units, for obtaining all building component combinations consisting of two or more building components in the target building according to the construction drawings and the BIM model of the target building, and extracting construction connections having building connection relationships between all building component combinations; The construction connection marking unit is used to determine whether each building component corresponding to a certain extracted construction connection satisfies the conditions that there is at least one building component for first feature marking and there are no unqualified building components, and whether a certain construction connection is to be subjected to second feature marking.

6. The construction data management system according to claim 2, characterized in that: The component connection error value calculation module is used to calculate the component connection error value, specifically: Calculate the average error value of the geometric feature parameter item at a construction connection processed by a second feature mark, and the calculation formula is: ， in, is the average error value of the geometric feature parameter item of the construction connection processed by the second feature mark, The construction connection involved in the second feature mark The error value corresponding to the geometric feature parameter item is The total number of geometric feature parameter items at the construction connection processed for a second feature mark; Calculate the component connection error value at a construction connection processed by a second feature mark, and the calculation formula is: ， in, The component connection error value at the construction connection processed by a second feature mark, The total number of geometric feature parameter items at the construction connection processed for a second feature mark, The construction connection involved in the second feature mark The error value corresponding to the geometric feature parameter item is The average error value of the geometric feature parameter items at the construction connection processed by a second feature marking.

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