Building carbon emission metering system based on BIM technology

Abstract

The invention provides a building carbon emission metering system based on a BIM technology, and belongs to the field of carbon emission metering. The problem of complicated carbon emission metering is solved; the data acquisition module is used for acquiring building material information, engineering information and operation consumption information; the data processing module is used for processing the building material information, the engineering information and the operation consumption information to obtain building material consumption, building material transportation energy consumption, manual energy consumption, mechanical energy consumption and operation energy consumption; the carbon emission calculation module is used for obtaining the total carbon emission amount of the building according to the consumption of each energy and the carbon emission factor of each energy and material; the carbon emission evaluation module is used for evaluating the carbon emission condition of the building according to the total carbon emission amount of the building and generating an evaluation report; according to the invention, the carbon emission data is acquired, the building carbon emission is calculated, and the difficulty of carbon emission metering is reduced.

Description

[0001] A Building Carbon Emission Measurement System Based on BIM Technology Technical Field

[0002] The building carbon emission measurement system based on BIM technology of the present invention relates to the field of carbon emission measurement. Background Technique

[0003] The existing building carbon emission measurement systems have the following deficiencies: Lack of a unified carbon emission accounting method: The carbon emission data of different buildings or regions may vary greatly due to different accounting methods, making it difficult to conduct horizontal comparisons and accurate assessments; Limited measurement objects: The existing building carbon emissions mainly focus on energy consumption data such as the power consumption of public buildings, while greenhouse gases such as carbon dioxide released from the combustion of fossil fuels related to buildings are not fully monitored; this leads to insufficient comprehensiveness of carbon emission data and makes it difficult to accurately reflect the actual carbon emissions of buildings; Limited carbon emission measurement scope: The current carbon emission measurement scope mainly focuses on energy consumption and industrial production processes, ignoring other important emission sources, such as emissions during the production and transportation of building materials; although these emissions do not belong to direct emissions or indirect emissions such as electricity, they still have a significant impact on the total carbon emissions. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a building carbon emission measurement system based on BIM technology, aiming to solve the problem of complex carbon emission measurement.

[0005] To achieve the above purpose, the present invention is realized through the following technical solutions: A building carbon emission measurement system based on BIM technology, characterized in that the measurement system includes: Data acquisition module: Obtain the types, quantities, and transportation information of building materials required for the building to form building material information; obtain the quantities of each project during the construction and demolition of the building to form project information; obtain the energy consumption of each energy during the operation stage of the building to form operation consumption information; Data processing module: Process the building material information, project information, and operation consumption information; obtain the building material consumption according to the types and quantities of building materials required for the building; obtain the building material transportation energy consumption according to the transportation information of the building materials; obtain the manual energy consumption and mechanical energy consumption according to the quantities of each project during the construction and demolition of the building; obtain the operation energy consumption according to the energy consumption of each energy during the operation stage of the building; Carbon emission calculation module: According to the building material consumption, building material transportation energy consumption, manual energy consumption, mechanical energy consumption, and operation energy consumption; combined with the carbon emission factors of each energy and material, calculate the total building carbon emissions; Carbon emission assessment module: According to the total building carbon emissions, assess the carbon emission status of the building and generate an assessment report.

[0006] Furthermore, process the building material information as follows: According to the types and quantities of building materials required for the building, obtain the types zl of building materials, count the quantity used for each type of building material, and obtain the building material consumption jc(c), where jc(c) refers to the consumption of the c-th type of building material; Obtain the transportation mode fs of the building materials, obtain the types rj of energy consumed by the transportation mode, the energy consumption nx(n, r) of the transportation mode, and the transportation distance ys(c) of the building materials to obtain the transportation information of the building materials. Analyze and calculate the transportation information of the building materials to obtain the transportation energy consumption Ysx of the building materials. r ; ; Where: nx(n, r) refers to the r-th type of energy consumption of the n-th transportation mode, ys(c) refers to the transportation distance of the c-th type of building material, and 1 ≤ n ≤ fs; The consumption of building materials and the transportation energy consumption of building materials constitute the energy and material consumption in the building design stage, and calculate the carbon emissions in the building design stage.

[0007] Furthermore, process the project information as follows: Obtain the quantities of each project during the construction and demolition of the building, analyze the project to obtain the manual project quantity and the mechanical project quantity; according to the manual project quantity, obtain the manual energy consumption; according to the mechanical project quantity, obtain the mechanical energy consumption; Analyze the manual project quantity, obtain the estimated construction duration sc, obtain the number of equipment sl required to ensure the work of construction personnel during the construction process, and obtain the energy consumption Sny(s) of each equipment per day; Calculate the construction duration sc and the energy consumption Sny(s) of each equipment per day to obtain the manual energy consumption rx; ; Sny(s) refers to the energy consumption of the s-th equipment per day, and 1 ≤ s ≤ sl; According to the mechanical project quantity, obtain the number of machines jl required for construction and the operation time js(j) of each machine; obtain the types jz of energy required for machine operation and the energy consumption of machine operation; calculate the mechanical energy consumption jx of each type of energy. z Perform the calculation; Specifically as follows: ; Jny(j, z) refers to the consumption of the z-th type of energy by the j-th machine, and 1 ≤ j ≤ jl, 1 ≤ z ≤ jz; The consumption of artificial energy and mechanical energy constitutes the energy and material consumption in the construction stage of a building, and the carbon emissions in the construction stage of the building are calculated.

[0008] Further, the operation consumption information is processed as follows: Analyze the energy consumption of each energy source in the operation stage of the building to obtain the energy type lx consumed by the building; obtain the building energy system; count the consumption systems of each energy source to obtain the operation energy consumption; The specific method for obtaining the operation energy consumption is as follows: Through the building energy system and the energy type consumed, obtain the number of energy-consuming devices yn; obtain the monthly energy consumption of the energy-consuming devices, and calculate the annual energy consumption Nny(y, l) of the energy-consuming devices; ; Where: Yny(y, l, m) refers to the energy consumption of the y-th energy-consuming device, the l-th energy source, and the m-th month; 1 ≤ y ≤ yn, 1 ≤ l ≤ lx; Combining the annual energy consumption of the energy-consuming devices with the number of energy-consuming devices, calculate the operation energy consumption to obtain the operation energy consumption yx l ; .

[0009] The operation energy consumption constitutes the energy and material consumption in the operation stage of the building, and the carbon emissions in the operation stage of the building are calculated.

[0010] Further, calculate the carbon emissions in the design stage of the building as follows: Based on the building material consumption jc(c) required for building construction, combined with the carbon emission factor corresponding to each building material, calculate the carbon emissions in the entire process of using building materials to obtain the building material carbon emissions Tcl; The specific calculation process is as follows: ; Where: F(zl(c)) represents the carbon emission factor corresponding to the c-th building material; Based on the transportation energy consumption of various building materials during transportation, combined with the carbon emission factor of the energy, calculate the carbon emissions generated during the transportation of building materials to obtain the building material transportation carbon emissions Tys; ; Where: Ysx r refers to the r-th transportation energy consumption, and F(rj(r)) represents the carbon emission factor corresponding to the r-th energy source; Sum the carbon emissions of building materials Tcl and the carbon emissions of building material transportation Tys to obtain the carbon emissions Tsj at the building design stage.

[0011] Furthermore, calculate the carbon emissions at the building construction stage as follows: Obtain the artificial energy consumption in different seasons, conduct error analysis on the artificial energy consumption in the construction stage to obtain the error value, and combine the artificial energy consumption with the carbon emission factor of the corresponding energy to calculate the artificial carbon emissions; According to the error value wc, combine the artificial energy consumption rx with the carbon emission factor F(rx) of the corresponding energy to calculate the artificial carbon emissions Trg; ; Obtain the additional energy consumption caused by the decline of machine performance, analyze the additional energy consumption, and reserve the mechanical energy consumption based on the analysis result to obtain the reserved value yl; From the reserved value yl, combine the mechanical energy consumption with the carbon emission factor of the corresponding energy to calculate the mechanical carbon emissions Tjx; ; jx z Refers to the z-th type of mechanical energy consumption, and F(jz(z)) represents the carbon emission factor corresponding to the z-th type of mechanical energy; Calculate the carbon emissions Tsg at the building construction stage based on the artificial carbon emissions and the mechanical carbon emissions; 。

[0012] Furthermore, conduct error analysis on the artificial energy consumption as follows: Obtain the artificial energy consumption rxi for t months, analyze the artificial energy consumption rxi for t months to obtain the average artificial energy consumption JZ, calculate the difference between the artificial energy consumption rxi and the average artificial energy consumption JZ to obtain the standard error, and perform proportional conversion on the standard error to obtain the error value; Specifically as follows: Obtain the artificial energy consumption rxi for t months; calculate the average value of the artificial energy consumption rxi to obtain the average artificial energy consumption JZ; Based on the artificial energy consumption rxi in different months and combined with the average artificial energy consumption JZ, calculate the standard error bwc of the artificial energy consumption; ; Perform proportional calculation on the standard error and the average artificial energy consumption JZ to obtain the error value wc; 。

[0013] Furthermore, the carbon emissions during the operation stage of the building are calculated as follows: Obtain the estimated service life sm of the building, and combine the operating energy consumption with the carbon emission factors of the corresponding energy sources to calculate the carbon emissions Tyx during the operation stage of the building; ; Where: yx l refers to the l-th type of operating energy consumption, and F(lx(l)) represents the carbon emission factor corresponding to the l-th type of operating energy source; Obtain the carbon emissions Tsj during the design stage of the building, the carbon emissions Tsg during the construction stage of the building, and the carbon emissions Tyx during the operation stage of the building, and perform a summation calculation to obtain the total building carbon emissions Tzl.

[0014] Furthermore, the carbon emission status of the building is evaluated as follows: Obtain the total building carbon emissions Tzl and the carbon emission standard BZ of the country or region, and calculate the building carbon emission excess rate CEL: ; Judge the excess rate: If CEL < 0, the total building carbon emissions are less than the standard carbon emissions, meeting the carbon emission standards of the country or region; If 0 ≤ CEL < 5%, the total building carbon emissions slightly exceed the national standard, and adjustments are made during the building construction stage and operation stage; If CEL > 5%, the total building carbon emissions exceed the national standard, the total building carbon emissions do not meet the carbon emission standards of the country or region, and the carbon emission status of the building is unqualified; reduce the consumption of materials and energy to reduce building carbon emissions.

[0015] Compared with the prior art, the beneficial effects of the present invention are: Detailed measurement object: The measurement object of the present invention is divided in detail, the energy consumed during the whole life cycle of the building is measured, and calculations are carried out in combination with the carbon emission factors corresponding to various energy sources and building materials provided in the public information. During the calculation process, the errors are calculated in detail to ensure the accuracy of data calculation; Comprehensive carbon emission measurement scope: The measurement of building carbon emissions by the present invention includes the whole life cycle of the building, including greenhouse gas emissions generated during the building's related building material production and transportation, construction and demolition, and operation stages. For building material production and transportation, by statistically analyzing the energy consumed by different transportation methods, the carbon emissions during the building material transportation process are divided in detail and specifically, improving the calculation efficiency of carbon emissions and making the carbon emission calculation for building transportation more comprehensive. Description of the Drawings

[0016] Other features, objectives, and advantages of the present invention will become more apparent by reading the following detailed description of non - restrictive embodiments with reference to the accompanying drawings: Figure 1 Schematic diagram of the method of the present invention; Figure 2 Schematic diagram of building material transportation of the present invention; Figure 3 Schematic diagram of carbon emission comparison of the present invention. Detailed implementation manners

[0017] To make the above - mentioned objectives, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0018] Embodiment 1 Please refer to Figure 1 , a building carbon emission measurement system based on BIM technology includes: a data acquisition module, a data processing module, a carbon emission calculation module, and a carbon emission assessment module; It should be noted that: building carbon emissions refer to the total greenhouse gas emissions generated by a building during the production and transportation of building materials related to it, construction and demolition, and operation stage, expressed in carbon dioxide equivalent; It should be noted that: the carbon emission factor refers to the coefficient corresponding to the energy and material consumption and carbon dioxide emissions, used to quantify the carbon emissions of related activities in different stages of a building. The carbon emission factor is represented by F(X), where X represents specific energy or material. For example, if X is tap water, then F(X)=0.168 kg CO2e / t; Data acquisition module: Obtain the types, quantities, and transportation information of building materials required for the building to form building material information; obtain the quantities of each project during the construction and demolition of the building to form project information; obtain the energy consumption in each operation stage of the building to form operation consumption information; Data processing module: Process the building material information, project information, and operation consumption information; obtain the building material consumption according to the types and quantities of building materials required for the building; obtain the building material transportation energy consumption according to the transportation information of building materials; obtain the manual energy consumption and mechanical energy consumption according to the quantities of each project during the construction and demolition of the building; obtain the operation energy consumption according to the energy consumption in each operation stage of the building; Specifically as follows: According to the types and quantities of building materials required for the building, obtain the types zl of building materials, and count the quantity of each building material to obtain the building material consumption jc(c); Where: jc(c) refers to the consumption of the c - th building material, 1≤c≤zl; Please refer to Figure 2, analyze the transportation information of building materials, obtain the transportation method fs of building materials, obtain the types of energy rj consumed by the transportation method, the energy consumption nx (n, r) of this transportation method, and the transportation distance ys (c), and calculate the transportation energy consumption Ysx of building materials r ; ; Among them: nx (n, r) refers to the r-th type of energy consumption of the n-th transportation method, and ys (c) refers to the transportation distance of the c-th type of building materials, 1 ≤ n ≤ fs; For example, for the first type of building materials, it is transported by a light gasoline truck, with a transportation distance of 100 kilometers; the gasoline consumption is 10 liters per 100 kilometers; for the second type of building materials, a new energy heavy truck is used, with a transportation distance of 200 kilometers and an electricity consumption of 200 degrees per 100 kilometers; The gasoline consumption is obtained as 10 liters, and the electricity consumption is 400 degrees, then Ysx1 = 10 liters, Ysx2 = 400 degrees; By statistically analyzing the energy consumed by different transportation methods, the carbon emissions in the process of building material transportation are detailed and specifically divided, improving the calculation efficiency of carbon emissions and making the calculation of carbon emissions in building transportation more comprehensive; Through the transportation energy consumption Ysx r The calculation formula integrates the energy consumed by building materials during transportation, converts the calculation method of carbon emissions into the carbon emissions caused by energy consumption, and simplifies the calculation of carbon emissions; According to the engineering quantities of each project during the construction and demolition of buildings, analyze the project to obtain the manual engineering quantity and the mechanical engineering quantity; according to the manual engineering quantity, obtain the manual energy consumption; according to the mechanical engineering quantity, obtain the mechanical energy consumption; It should be noted that: the manual energy consumption refers to the energy consumed by construction workers during the construction process. For example, during night construction or under cold weather conditions, the electricity consumed by lighting, heating, and ventilation equipment at the construction site, and the water resources required by construction workers for concrete mixing, equipment cleaning, etc.

[0019] It should be noted that: the mechanical energy consumption refers to the actual amount of energy used by various construction equipment or machinery during the building construction process; these construction equipment include but are not limited to excavators, cranes, mixer trucks, rollers, generators.

[0020] According to the manual engineering quantity, obtain the estimated construction duration sc, obtain the number of equipment sl that guarantees the work of construction workers during the construction process, and obtain the energy consumption Sny (s) of each equipment per day; According to the construction duration sc and the energy consumption Sny (s) of each equipment per day, obtain the manual energy consumption rx; Specifically as follows: ; Where: Sny(s) refers to the energy consumed by the s-th device per day, where 1 ≤ s ≤ sl; sl is the number of devices; According to the mechanical engineering quantity, obtain the number of machines jl required for construction and the running time js(j) of each machine; obtain the types of energy jz required for machine operation and the energy consumption Jny(j, z) of machine operation; Based on the machine running time js(j), the types of energy jz required for machine operation, and the energy consumption Jny(j, z) of machine operation, obtain the mechanical energy consumption jx of each type of energy z ; Specifically as follows: ; Where: Jny(j, z) refers to the consumption of the z-th type of energy by the j-th machine, where 1 ≤ j ≤ jl, 1 ≤ z ≤ jz, jl is the number of machines required for construction, and jz is the type of energy; According to the energy consumption of each type of energy in the building operation stage, obtain the types of energy lx consumed by the building; obtain the building energy - using system; conduct statistics on the consumption systems of each type of energy to obtain the running energy consumption; It should be noted that: the building energy - using system refers to a series of equipment used in the building operation stage, such as heating and air - conditioning, lighting facilities, and domestic hot water systems; Specifically as follows: According to the building energy - using system and the types of consumed energy, obtain the number of energy - using devices yn; obtain the monthly energy consumption Yny(y, l, m) of the energy - using devices, and calculate the annual energy consumption Nny(y, l) of the energy - using devices; ; Where: Yny(y, l, m) refers to the energy consumption of the y-th energy - using device, the l-th type of energy, and the m-th month; 1 ≤ y ≤ yn, 1 ≤ l ≤ lx, 1 ≤ m ≤ 12; Based on the annual energy consumption Nny(y, l) of the energy - using devices and the number of energy - using devices yn, obtain the running energy consumption yx l ; ; Carbon emission calculation module: According to the building material consumption, transportation energy consumption, manual energy consumption, mechanical energy consumption, running energy consumption; combined with the carbon emission factors of each energy and material, obtain the total building carbon emissions; It should be noted that when evaluating the carbon emissions in construction projects or related construction activities, the carbon emission factors corresponding to various types of energy and building materials provided in the information publicly released by the Ministry of Housing and Urban-Rural Development are used. These carbon emission factors are the key coefficients for accurately calculating the carbon dioxide emissions generated by the consumption of energy (such as coal, oil, natural gas, electricity, etc.) and materials (such as cement, steel, glass, etc.).

[0021] Specifically as follows: Based on the building material consumption jc(c) required for building a building, combined with the carbon emission factor corresponding to each building material (i.e., the carbon dioxide emissions generated per unit of building material production or processing), the carbon emissions during the entire building material usage process are calculated to obtain the building material carbon emissions Tcl; The specific calculation process is as follows: ; Among them: F(zl(c)) represents the carbon emission factor corresponding to the c-th building material; Based on the transportation energy consumption of various building materials during transportation, combined with the specific carbon emission factors of these energies, the carbon emissions generated during the building material transportation link are calculated to obtain the building material transportation carbon emissions Tys; ; Among them: Ysx r refers to the transportation energy consumption of the r-th type, and F(rj(r)) represents the carbon emission factor corresponding to the r-th type of energy; Based on the building material carbon emissions Tcl and the building material transportation carbon emissions Tys, the carbon emissions Tsj during the building design stage are obtained; ; Based on the seasonal changes in energy use, an error analysis is conducted on the manual energy consumption during the construction stage to obtain an error value. Combining the manual energy consumption and the carbon emission factors of the corresponding energy, the manual carbon emissions are calculated; Obtain the manual energy consumption rxi for t months; t≥12; calculate the average value of the manual energy consumption rxi to obtain the average manual energy consumption JZ; ; Based on the manual energy consumption rxi and the average manual energy consumption JZ for different months, the standard error bwc of the manual energy consumption is calculated; ; For 12 months, if the artificial energy consumption is electrical energy, which are 200 degrees, 300 degrees, 100 degrees, 200 degrees, 200 degrees, 300 degrees, 400 degrees, 500 degrees, 400 degrees, 200 degrees, 300 degrees, and 400 degrees respectively, the average value of artificial energy consumption is approximately 292 degrees; substituting it into the formula for calculation: ; we get bwc = 34; Based on the artificial energy consumption and the average value of artificial energy consumption, the standard error of the artificial energy consumption is obtained, improving the accuracy of data calculation and considering a more comprehensive range.

[0022] According to the proportional relationship between the standard error and the average value JZ of artificial energy consumption, the error value wc is obtained; ; Obtain the standard error bwc = 34 of the artificial energy consumption and the average value of artificial energy consumption is approximately 292, and substitute it into the formula for calculation: ; we get the error value wc = 10.95%.

[0023] Supplement the artificial energy consumption through the error value to ensure the accuracy of building carbon emission calculation; According to the error value, combined with the artificial energy consumption rx and the carbon emission factor F(rx) of the corresponding energy, the artificial carbon emission Trg is calculated; ; Harsh operating conditions (such as too high or too low temperature, excessive humidity, etc.) cause the performance of the equipment to decline, reduce work efficiency, increase energy consumption. According to the additional energy consumption caused by the decline of machine performance, reserve the mechanical energy consumption to obtain the reserved value; It should be noted specifically that: the reserved value refers to a part of the energy consumption prepared additionally to ensure the smooth progress of the construction process and to cope with various uncertain factors and unexpected situations. According to industry experience and practical experience, this reserved energy consumption ratio is usually set between 5% and 10% of the total energy consumption. In the present invention, the symbol "yl" is used to represent this reserved value. Through such a setting, we can more intuitively understand and grasp the energy consumption situation during the construction process, thus ensuring the smooth progress of the construction and the rational use of resources.

[0024] According to the reserved value, combined with the mechanical energy consumption and the carbon emission factor of the corresponding energy, the mechanical carbon emission Tjx is calculated; ; where: jx zIt refers to the consumption of the z-th type of mechanical energy, and F(jz(z)) represents the carbon emission factor corresponding to the z-th type of mechanical energy; Based on the artificial carbon emissions and mechanical carbon emissions, the carbon emissions Tsg during the building construction stage are calculated; ; Obtain the estimated service life of the building, and combine the operating energy consumption and the carbon emission factors of the corresponding energy to calculate the carbon emissions Tyx during the building operation stage; It should be noted that: the estimated service life of the building refers to the designed service life of the building. Different buildings have different estimated service lives. Generally, the estimated service life of a reinforced concrete structure building is 60 years, that of a brick-concrete structure is 50 years, and that of a brick-wood structure is 30 to 40 years; in the present invention, the estimated service life of the building is replaced by sm for calculation; ; Among them: yx l It refers to the consumption of the l-th type of operating energy, and F(lx(l)) represents the carbon emission factor corresponding to the l-th type of operating energy; Sum up the carbon emissions Tsj during the building design stage, the carbon emissions Tsg during the building construction stage, and the carbon emissions Tyx during the building operation stage to obtain the total building carbon emissions Tzl; ; Carbon emission assessment module: According to the total building carbon emissions, compare with the carbon emission standards of the country or region, evaluate the carbon emission status of the building, and generate an assessment report.

[0025] Specifically as follows: Please refer to Figure 3 , obtain the total building carbon emissions and the carbon emission standard BZ of the country or region, calculate the building carbon emission overrate CEL by comparing the total building carbon emissions with the carbon emission standard of the country or region; The specific calculation is as follows: ; Judge the overrate: If CEL < 0, the total building carbon emissions are less than the standard carbon emissions, meeting the carbon emission standards of the country or region; If 0 ≤ CEL < 5%, the total building carbon emissions slightly exceed the national standard, and adjustments are made during the building construction stage and operation stage; If CEL > 5%, the total building carbon emissions exceed the national standard, the total building carbon emissions do not meet the carbon emission standards of the country or region, and the carbon emission status of the building is unqualified; analyze the carbon emissions during the building material production and transportation stage, construction and demolition stage, and operation stage of the building, reduce the consumption of materials and energy, and reduce the building carbon emissions; The above formulas are all dimensionless and take their numerical values for calculation. The formulas are obtained by collecting a large amount of data and performing software simulations to get a formula closest to the actual situation. The preset parameters in the formulas are set by those skilled in the art according to the actual situation. For example, there are weight coefficients and proportionality coefficients, and the magnitudes of their settings are for obtaining a specific numerical value by quantifying each parameter, which is convenient for subsequent comparison. Regarding the magnitudes of the weight coefficients and proportionality coefficients, as long as they do not affect the proportional relationship between the parameters and the quantified numerical values, it is acceptable.

[0026] Finally, it should be noted that: the above-described embodiments are only specific implementation manners of the present invention, used to illustrate the technical solutions of the present invention, rather than limiting it. The protection scope of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: any person skilled in the art within the technical scope disclosed by the present invention can still modify the technical solutions recorded in the foregoing embodiments or can easily think of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A building carbon emission measurement system based on BIM technology, characterized in that, The measurement system includes: Data acquisition module: Obtain the types, quantities, and transportation information of building materials required for a building to form building material information; obtain the quantities of each project during the construction and demolition of the building to form project information; obtain the energy consumption of each building operation stage to form operation consumption information; Data processing module: Process the building material information, project information, and operation consumption information; obtain the building material consumption based on the types and quantities of building materials required for the building; obtain the building material transportation energy consumption based on the transportation information of the building materials; obtain the manual energy consumption and mechanical energy consumption based on the quantities of each project during the construction and demolition of the building; obtain the operation energy consumption based on the energy consumption of each building operation stage; Carbon emission calculation module: Calculate the total building carbon emissions based on the building material consumption, building material transportation energy consumption, manual energy consumption, mechanical energy consumption, and operation energy consumption; combine the carbon emission factors of each energy and material; Carbon emission assessment module: Evaluate the carbon emission status of the building based on the total building carbon emissions and generate an assessment report.

2. The building carbon emission measurement system based on BIM technology according to claim 1, characterized in that, Process the building material information as follows: Based on the types and quantities of building materials required for the building, obtain the types zl of building materials, and count the quantities of each building material to obtain the building material consumption jc(c), where jc(c) refers to the consumption of the c-th building material; Obtain the transportation method fs of building materials, the types of energy consumed by the transportation method rj, the energy consumption nx(n, r) of the transportation method, and the transportation distance ys(c) to obtain the transportation information of building materials. Analyze and calculate the transportation information of building materials to obtain the transportation energy consumption amount Ysx r ; ； Where: nx(n, r) refers to the r-th energy consumption of the n-th transportation method, ys(c) refers to the transportation distance of the c-th building material, and 1 ≤ n ≤ fs; The building material consumption and the building material transportation energy consumption constitute the energy and material consumption in the building design stage, and calculate the carbon emissions in the building design stage.

3. A building carbon emission measurement system based on BIM technology according to claim 1, characterized in that, Process the project information as follows: Obtain the quantities of each project during the construction and demolition of the building, analyze the projects to obtain the manual project quantity and mechanical project quantity; obtain the manual energy consumption based on the manual project quantity; obtain the mechanical energy consumption based on the mechanical project quantity; Analyze the manual project quantity to obtain the estimated construction duration sc, obtain the number of devices sl that ensure the work of construction personnel during the construction process, and obtain the energy consumption Sny(s) of each device per day; Calculate the construction duration sc and the energy consumption Sny(s) of each device per day to obtain the manual energy consumption rx; ； Sny(s) refers to the energy consumption of the s-th device per day, and 1 ≤ s ≤ sl; According to the mechanical engineering quantity, obtain the number of machines jl required for construction and the operating time js(j) of each machine; obtain the types of energy jz required for machine operation and the energy consumption of machine operation; calculate the mechanical energy consumption jx of each type of energy z : ； Jny(j, z) refers to the consumption of the j-th machine for the z-th energy; The manual energy consumption and the mechanical energy consumption constitute the energy and material consumption in the building construction stage, and calculate the carbon emissions in the building construction stage.

4. A building carbon emission measurement system based on BIM technology according to claim 1, characterized in that, Process the operation consumption information as follows: Analyze the energy consumption of each building operation stage to obtain the building energy consumption type lx; obtain the building energy system; count the consumption systems of each energy to obtain the operation energy consumption; Obtain the operation energy consumption as follows: Obtain the number of energy-consuming devices yn through the building energy consumption system and the types of energy consumed; obtain the monthly energy consumption of the energy-consuming devices, and calculate the annual energy consumption Nny(y, l) of the energy-consuming devices. ； Where: Yny(y, l, m) refers to the energy consumption of the y-th energy-consuming device, the l-th type of energy, and the m-th month; 1 ≤ y ≤ yn, 1 ≤ l ≤ lx. By combining the annual energy consumption of the energy-consuming equipment with the number of energy-consuming equipment, the operating energy consumption is obtained, and the operating energy consumption yx is obtained. l ; 。 5. The operating energy consumption constitutes the energy and material consumption in the building operation stage, and calculates the carbon emissions in the building operation stage.

6. The building carbon emission measurement system based on BIM technology according to claim 2, characterized in that, Calculate the carbon emissions in the building design stage as follows: Obtain the carbon emissions during the entire building material usage process by combining the building material consumption jc(c) required for the building with the carbon emission factor corresponding to each type of building material, and obtain the building material carbon emissions Tcl. The specific calculation process is as follows: ； Where: F(zl(c)) represents the carbon emission factor corresponding to the c-th type of building material; Obtain the carbon emissions generated during the building material transportation link by combining the transportation energy consumption of various building materials during transportation with the carbon emission factor of the energy, and obtain the building material transportation carbon emissions Tys. ； Among them: Ysx r refers to the consumption of the r-th type of transportation energy, and F(rj(r)) represents the carbon emission factor corresponding to the r-th type of energy; Sum up the building material carbon emissions Tcl and the building material transportation carbon emissions Tys to obtain the carbon emissions Tsj in the building design stage.

7. The building carbon emission measurement system based on BIM technology according to claim 3, characterized in that, Calculate the carbon emissions in the building construction stage as follows: Obtain the artificial energy consumption in different seasons, conduct error analysis on the artificial energy consumption in the construction stage to obtain the error value, and calculate the artificial carbon emissions by combining the artificial energy consumption and the carbon emission factor of the corresponding energy. According to the error value wc, calculate the artificial carbon emissions Trg by combining the artificial energy consumption rx and the carbon emission factor F(rx) of the corresponding energy. ； Obtain the additional energy consumption caused by the decline in machine performance, analyze the additional energy consumption, and reserve the mechanical energy consumption based on the analysis result to obtain the reserved value yl. Calculate the mechanical carbon emissions Tjx from the reserved value yl by combining the mechanical energy consumption and the carbon emission factor of the corresponding energy. ； jx z Refers to the consumption of the z-th type of mechanical energy, and F(jz(z)) represents the carbon emission factor corresponding to the z-th type of mechanical energy; Calculate the carbon emissions Tsg in the building construction stage based on the artificial carbon emissions and the mechanical carbon emissions. 。 8. The building carbon emission measurement system based on BIM technology according to claim 6, characterized in that, Conduct error analysis on the artificial energy consumption as follows: Obtain the artificial energy consumption rxi for t months, analyze the artificial energy consumption rxi for t months to obtain the average artificial energy consumption JZ, calculate the difference between the artificial energy consumption rxi and the average artificial energy consumption JZ to obtain the standard error, and perform proportional conversion on the standard error to obtain the error value. Specifically as follows: Obtain the artificial energy consumption rxi for t months; calculate the average artificial energy consumption JZ. Calculate the standard error bwc of the artificial energy consumption by combining the artificial energy consumption rxi for different months with the average artificial energy consumption JZ. ； Perform proportional calculation on the standard error and the average artificial energy consumption JZ to obtain the error value wc. 。 9. The building carbon emission measurement system based on BIM technology according to claim 4, characterized in that, Calculate the carbon emissions in the building operation stage as follows: Obtain the estimated service life sm of the building, and combine the operating energy consumption with the carbon emission factor of the corresponding energy to calculate the carbon emission Tyx during the building operation stage; ； Among them: yx l refers to the energy consumption of the l-th operation, and F(lx(l)) represents the carbon emission factor corresponding to the energy of the l-th operation; Obtain the carbon emission Tsj during the building design stage, the carbon emission Tsg during the building construction stage, and the carbon emission Tyx during the building operation stage, and perform a summation calculation to obtain the total building carbon emission Tzl.

10. A building carbon emission measurement system based on BIM technology according to claim 7, characterized in that, Evaluate the carbon emission status of the building as follows: Obtain the total building carbon emission Tzl and the carbon emission standard BZ of the country or region, and calculate the building carbon emission excess rate CEL: ； Judge the excess rate: If CEL < 0, the total building carbon emission is less than the standard carbon emission, meeting the carbon emission standards of the country or region; If 0 ≤ CEL < 5%, the total building carbon emission slightly exceeds the national standard, and adjustments are made during the building construction stage and operation stage; If CEL > 5%, the total building carbon emission exceeds the national standard, the total building carbon emission does not meet the carbon emission standards of the country or region, and the carbon emission status of the building is unqualified; reduce the consumption of materials and energy and lower the building carbon emission.

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