Building carbon footprint quantification method and system based on BIM

Abstract

The invention provides a BIM-based building carbon footprint quantification method and system, and the method comprises the steps: carrying out the coupling of the purchase management data of each building stage, the engineering management data of each building stage and the BIM data in a BIM model of a to-be-monitored building, and generating an engineering quantity list of each building stage; intelligently matching the engineering quantity list with a preset life cycle factor library to generate a carbon footprint list of each building stage; performing analysis based on the carbon footprint list, and generating carbon footprint analysis results of the building to be monitored in each building stage; and based on a carbon footprint analysis result, performing visualization processing, and displaying a visualization processing result in the BIM model. Therefore, the data collection efficiency and accuracy are improved, the carbon emission of the whole life cycle of the building can be subjected to refined and dynamic management, the influence of each stage and each factor of the building on the carbon emission can be comprehensively and accurately considered, and the low carbon of the whole life cycle of building design, purchase, construction and the like can be promoted.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon emission, and in particular to a method and system for quantifying building carbon footprint based on BIM. Background Art

[0002] The global warming situation is severe. The construction industry is an important source of greenhouse gas emissions, accounting for a high proportion of the total global carbon emissions. In response to climate change, the international community has put forward clear requirements for carbon emission reduction in the construction industry. It is necessary to quantify the carbon footprint of buildings in order to formulate effective emission reduction measures.

[0003] Traditional building carbon footprint quantification mainly relies on manual statistics and post-analysis. However, this method is inefficient and difficult to carry out refined and dynamic management of carbon emissions throughout the life cycle of buildings. It is also unable to fully and accurately consider the impact of various stages and factors of buildings on carbon emissions, and cannot meet the current needs of low-carbon development in the construction industry. Summary of the invention

[0004] The present invention provides a BIM-based building carbon footprint quantification method and system to address the defects in the prior art of low carbon footprint quantification efficiency, difficulty in fine-grained and dynamic management of carbon emissions throughout the life cycle of a building, and failure to comprehensively and accurately consider the impact of various stages and factors of a building on carbon emissions.

[0005] In one aspect, the present invention provides a method for quantifying a building carbon footprint based on BIM, comprising: The procurement management data of each construction stage of the building to be monitored, the engineering management data of each construction stage and the BIM data in the BIM model of the building to be monitored are coupled to generate a bill of quantities for each construction stage; Matching the bill of quantities with a preset life cycle factor library to generate a carbon footprint inventory for each construction stage; Performing analysis based on the carbon footprint inventory to generate carbon footprint analysis results of the building to be monitored at each construction stage; Based on the carbon footprint analysis result, visualization processing is performed, and the visualization processing result is displayed in the BIM model.

[0006] According to a BIM-based building carbon footprint quantification method provided by the present invention, the procurement management data includes building material data and building equipment data; the building material data includes material names, and the building equipment data includes equipment names; The construction stage includes an operation stage, and the carbon footprint analysis result includes a basic carbon footprint of the operation stage; The method further comprises: During the operation phase, obtaining behavioral habit data of the actual operator of the building to be monitored; Determining the carbon footprint of the actual operator based on the behavioral habit data of the actual operator; Determine the material impact value of the carbon footprint of the actual operator on the material performance of the material name according to the preset influence relationship of the carbon footprint on the material performance of different building materials, and determine the equipment impact value of the carbon footprint of the actual operator on the equipment performance of the equipment name according to the preset influence relationship of the carbon footprint on the equipment performance of different building equipment; If at least one of the material impact value and the equipment impact value indicates performance degradation, the basic carbon footprint of the operation stage is adjusted according to the correlation between the performance degradation value and the discount coefficient to obtain the actual carbon footprint of the operation stage.

[0007] A method for quantifying building carbon footprint based on BIM provided by the present invention also includes: Determine the difference between the actual carbon footprint of the operation phase and the base carbon footprint of the operation phase; If the difference is greater than a preset difference, generating energy-saving prompt information; The energy-saving prompt information is sent to the information receiving device of the actual operator.

[0008] A method for quantifying building carbon footprint based on BIM provided by the present invention also includes: Within a first preset time period after sending the energy-saving reminder information, if the difference is still greater than the preset difference, generating energy-saving reward information; Sending the energy-saving reward information to the information receiving device of the actual operator; Within a second preset time period after sending the energy-saving reward information, if an application request from the actual operator is monitored, the reward value corresponding to the carbon footprint of the actual operator within the second preset time period is sent to the account of the actual operator based on the preset association relationship between the carbon footprint and the reward value.

[0009] According to a BIM-based building carbon footprint quantification method provided by the present invention, the actual operator's behavior habit data includes: operator energy consumption, operator activity intensity and operator daily maintenance data; Determine the carbon footprint of the actual operator based on the behavioral habit data of the actual operator, including: Obtaining a first carbon emission corresponding to the energy consumption according to the first calculation formula and the energy consumption of the operator; Obtaining a second carbon emission amount corresponding to the activity according to the second calculation formula and the activity intensity of the operator; Obtaining a third carbon emission amount corresponding to daily maintenance according to a third calculation formula and the operator's daily maintenance data; determining the carbon footprint of the actual operator according to a fourth calculation formula, the first carbon emissions, the second carbon emissions, and the third carbon emissions; Wherein, the first calculation formula is: ,in, Indicates the first carbon emissions generated by energy consumption, represents the consumption of the i-th energy source, represents the carbon emission factor of the i-th energy source; The second calculation formula is: ,in, Indicates the secondary carbon emissions generated by the activity, represents the data of the jth activity, represents the carbon emission factor of the jth activity; The third calculation formula is: ,in, Represents the third carbon emissions generated by daily maintenance, represents the kth type of daily maintenance data, represents the carbon emission factor of the kth routine maintenance; The fourth calculation formula is: in, Indicates the carbon footprint of the actual operator, represents the weight coefficient of the first carbon emission, represents the weight coefficient of the second carbon emission, Represents the weight coefficient of the third carbon emission.

[0010] According to a BIM-based building carbon footprint quantification method provided by the present invention, the operator's energy consumption includes at least one of electricity energy consumption, gas energy consumption and fuel oil energy consumption; The operator's activity intensity includes at least one of the number of times construction equipment is used, the duration of construction equipment use, the power of construction equipment use, the type of operator's sports project, the duration of operator's sports, the number of indoor ventilation times, and the duration of indoor ventilation; The operator's daily maintenance data includes at least one of the number of construction equipment maintenance, the construction equipment maintenance method, the construction material maintenance method, and the number of construction material maintenance.

[0011] According to a BIM-based building carbon footprint quantification method provided by the present invention, the procurement management data further includes at least one of a mode of transportation, a means of transportation, and a transportation distance; The engineering management data include resource input data, waste disposal data and greenhouse gas direct emission data; The resource input data includes at least one of: energy name, energy statistical quantity, energy statistical unit, energy accounting unit, energy accounting unit conversion factor, energy specification model, energy source, energy data source, construction equipment name, construction equipment statistical quantity, construction equipment statistical unit, construction equipment accounting unit, construction equipment accounting unit conversion factor, construction equipment specification model, construction equipment source, and construction equipment data source; The waste disposal data includes at least one of the waste name, waste generation amount, waste disposal method, waste statistical unit, waste weight unit, waste weight conversion factor, waste data source and waste disposal location; The direct greenhouse gas emission data include greenhouse gas categories and / or greenhouse gas emissions.

[0012] According to a BIM-based building carbon footprint quantification method provided by the present invention, the bill of quantities is matched with a preset life cycle factor library to generate a carbon footprint list for each construction stage, including: Semantic recognition is performed on the bill of quantities and the life cycle factor library respectively to obtain key indicator information of the bill of quantities and key indicator information of the life cycle factor library; wherein the key indicator information of the bill of quantities and the key indicator information of the life cycle factor library both include technical indicator information, geographical indicator information, and time indicator information; Matching the key indicator information of the bill of quantities with the key indicator information of the life cycle factor library to obtain a score value of each indicator information; Based on the score values ​​of the indicator information and the preset matching factor indicator calculation formula, a deviation value of the matching factor is obtained; Input the deviation value of the matching factor into a pre-trained matching quality assessment model for assessment, output the matching factors whose deviation value is less than a preset threshold, and output the indicator list corresponding to the matching factors whose deviation value is greater than or equal to the preset threshold; Generate a carbon footprint list for each construction stage according to the output matching factor, the received matching factor and the bill of quantities, wherein the received matching factor is a matching factor fed back based on the indicator list; The matching factor index calculation formula is:

[0013] in, represents the deviation value of the matching factor, represents the weight of the i-th indicator, Represents the score value of the i-th indicator information, i=1, 2, 3,,,n, Indicates the elimination of 0 constant.

[0014] On the other hand, the present invention also provides a BIM-based building carbon footprint quantification system, which includes: A model coupling unit is used to couple the procurement management data of each construction stage of the building to be monitored, the engineering management data of each construction stage with the BIM data in the BIM model of the building to be monitored to generate a bill of quantities for each construction stage; A carbon footprint inventory generation unit, used to match the bill of quantities with a preset life cycle factor library to generate a carbon footprint inventory for each construction stage; The calculation and analysis unit is used to perform analysis based on the carbon footprint inventory to generate carbon footprint analysis results of the building to be monitored at each construction stage, and perform visualization processing based on the carbon footprint analysis results to display the visualization processing results in the BIM model.

[0015] On the other hand, the present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the method for quantifying the carbon footprint of a building based on BIM as described above is implemented.

[0016] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements any of the above-described BIM-based building carbon footprint quantification methods.

[0017] On the other hand, the present invention also provides a computer program product, comprising a computer program, which, when executed by a processor, implements any of the above-mentioned BIM-based building carbon footprint quantification methods.

[0018] The BIM-based building carbon footprint quantification method provided by the present invention generates a bill of quantities for each building stage by coupling the procurement management data of each building stage of the building to be monitored and the engineering management data of each building stage with the BIM data in the BIM model of the building to be monitored, thereby reducing the difficulty of data collection and improving the efficiency and accuracy of data collection. It also performs intelligent matching through the life cycle factor library to realize automatic calculation of the carbon footprint list and carbon footprint analysis results, and uses the BIM model for multi-dimensional visualization display, thereby enabling refined and dynamic management of carbon emissions throughout the life cycle of the building, and comprehensively and accurately considering the impact of each stage and factor of the building on carbon emissions, which is helpful to promote low-carbonization of the entire life cycle of building design, procurement, construction, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is one of the flow charts of the method for quantifying the carbon footprint of a building based on BIM provided in an embodiment of the present invention; Figure 2 This is the second flow chart of the method for quantifying the carbon footprint of a building based on BIM provided in an embodiment of the present invention; Figure 3 It is a structural schematic diagram of a BIM-based building carbon footprint quantification system provided by an embodiment of the present invention; Figure 4 It is a schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are 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.

[0022] Figure 1 It is one of the flow charts of the method for quantifying the building carbon footprint based on BIM provided in an embodiment of the present invention.

[0023] like Figure 1 As shown, the BIM-based building carbon footprint quantification method provided in an embodiment of the present invention can be executed by a control in an electronic device. The method mainly includes the following steps: 101. Coupling the procurement management data of each construction stage of the building to be monitored and the engineering management data of each construction stage with the BIM data in the BIM model of the building to be monitored; BIM is the abbreviation of Building Information Modeling. It is a method of building design, construction and management based on digital technology. It integrates all aspects of building design, construction and management into one model through digital technology. BIM model has the characteristics of three-dimensional visualization, information integration, parametric design and collaborative work. It can create an intuitive three-dimensional building model, which is convenient for all parties to understand and communicate.

[0024] The BIM model contains rich data on the entire life cycle of a building from design to operation to demolition, such as the types, usage, equipment information, construction progress and other BIM data of building materials. These data are the basis for quantifying the carbon footprint of a building, and can provide accurate and comprehensive information for carbon footprint calculation, avoiding the difficulties and inaccuracies of data collection in traditional methods. However, these data lack information such as materials, manufacturers, and weights. Therefore, they can be coupled with the procurement management data of each construction stage and the engineering management data of each construction stage to obtain a bill of quantities that meets the carbon footprint requirements, making the parameters contained in the bill of quantities more comprehensive. Among them, the bill of quantities can include basic project information, sub-items (civil engineering, installation engineering, etc.), detailed engineering quantities, units of measurement and other information.

[0025] In a specific implementation process, procurement management data may include construction material data, construction equipment data, transportation data, etc. Among them, construction material data may include at least one of material type, material name (such as concrete, steel, etc.), material statistical quantity, material statistical unit, material weight unit, material weight conversion factor, material specification model, material main component, material data source (measured value / calculated value / estimated value), and material origin. Construction equipment data may include at least one of equipment name (such as elevator, etc.), equipment quantity, equipment weight, equipment service life, equipment main material, equipment production energy consumption, and equipment origin. Transportation data includes at least one of transportation mode, transportation tool, and transportation distance.

[0026] In a specific implementation process, engineering management data includes resource input data, waste disposal data and greenhouse gas direct emission data.

[0027] The resource input data include: at least one of: energy name (such as electricity, gas, etc.), energy statistical quantity, energy statistical unit, energy accounting unit, energy accounting unit conversion factor, energy specification model, energy source, energy data source, construction equipment name (such as excavator, forklift, etc.), construction equipment statistical quantity, construction equipment statistical unit, construction equipment accounting unit, construction equipment accounting unit conversion factor, construction equipment specification model, construction equipment source, and construction equipment data source; The waste disposal data includes at least one of the waste name, waste generation amount, waste disposal method, waste statistical unit, waste weight unit, waste weight conversion factor, waste data source and waste disposal location; The direct greenhouse gas emission data include greenhouse gas categories and / or greenhouse gas emissions.

[0028] 102. Match the bill of quantities with a preset life cycle factor library to generate a carbon footprint list for each construction stage; In a specific implementation process, the bill of quantities and the bill of quantities are both provided with at least one of geographical representative keywords, time representative keywords and technical representative keywords, and these keywords can be used as corresponding indicator information, that is, the key indicator information of the bill of quantities and the key indicator information of the life cycle factor library both include technical indicator information, geographical indicator information, and time indicator information. Among them, the geographical representative keywords reflect the geographical location characteristics of the data in the bill of quantities and the life cycle factor library, ensuring that the data is consistent with the environment, resources and technical conditions of the project location. The time representative keywords reflect the time characteristics of the data in the bill of quantities and the life cycle factor library, ensuring that the data is consistent with the time background of the project. The technical representative keywords reflect the technical characteristics of the data in the bill of quantities and the life cycle factor library, ensuring that the data is consistent with the technology and process adopted by the project. Technical representative keywords include category, model, composition, processing method, etc.

[0029] Step 102 may be implemented as follows: a. Performing semantic recognition on the bill of quantities and the life cycle factor library respectively to obtain key indicator information of the bill of quantities and key indicator information of the life cycle factor library; In a specific implementation process, the BERT model can be used but not limited to obtain the semantic vector representation to obtain the key indicator information of the bill of quantities and the key indicator information of the life cycle factor library.

[0030] b. Matching the key indicator information of the bill of quantities with the key indicator information of the life cycle factor library to obtain the score value of each indicator information; In a specific implementation process, cosine similarity or Euclidean distance can be applied for semantic matching to obtain the score value of each indicator information, wherein the score value can be expressed as the difference between the two, that is, the smaller the difference, the smaller the score value, and the larger the difference, the larger the score value. For example, the indicators corresponding to technical representative keywords can be divided into three levels: same, similar, and different, and each is assigned 1-3 points; the time indicators corresponding to time representative keywords are divided into ≤1 year, ≤2 years, ≤3 years, and >3 years, and each is assigned 1-4 points; the geographical indicators corresponding to geographical representative keywords are divided into the same province, the same country, the same region, and different regions, and each is assigned 1-4 points.

[0031] c. Based on the score values ​​of the indicator information and the preset matching factor indicator calculation formula, a deviation value of the matching factor is obtained; In a specific implementation process, the matching factor index calculation formula is:

[0032] in, represents the deviation value of the matching factor, Represents the weight of the i-th indicator. The sum of the weights of each indicator is equal to 1. Represents the score value of the i-th indicator information, i=1, 2, 3,,,n, Indicates the zero-elimination constant. In this calculation formula, the modulus length of the weight As a normalization factor, it can avoid biased results caused by excessive weights. The existence of can, in extreme cases (the sum of all weight modules is 0), the denominator still has a small value. Among them, the weight of technical indicators can be 50%, the weight of time indicators can be 20%, and the weight of geographical indicators can be 30%.

[0033] d. Input the deviation value of the matching factor into a pre-trained matching quality assessment model for assessment, and output a list of indicators corresponding to the matching factors whose deviation values ​​are greater than or equal to a preset threshold; In a specific implementation process, if the deviation value is less than a preset threshold, the matching quality is high, and the matching factors with deviation values ​​less than the preset threshold are output; if the deviation value is greater than or equal to the preset threshold, the matching quality is low, and the indicator list corresponding to the matching factors with deviation values ​​greater than or equal to the preset threshold is output, so as to narrow the screening range, and provide feedback after manual screening; e. Generate a carbon footprint list for each construction stage based on the output matching factor, the received matching factor and the bill of quantities.

[0034] In a specific implementation process, the specific generation process of the carbon footprint inventory of each construction stage can refer to the existing relevant technology and will not be repeated again.

[0035] 103. Analyze based on the carbon footprint inventory to generate carbon footprint analysis results of the building to be monitored at each construction stage; In a specific implementation process, the carbon footprint inventory can reflect all emission sources and their corresponding carbon emissions at each construction stage. The carbon footprint analysis results of the monitored building at each construction stage can be generated by classifying, calculating, and statistically integrating the information contained in the carbon footprint inventory. Among them, the carbon footprint analysis results can include the total carbon footprint of each emission source, the proportion of each emission source, and key emission sources, that is, the total carbon footprint of different stages, different materials, different construction methods, etc. and the proportion of each emission source can be obtained. Among them, the key emission source is the emission source whose proportion is greater than the preset proportion threshold.

[0036] 104. Perform visualization based on the carbon footprint analysis result, and display the visualization result in the BIM model.

[0037] In a specific implementation process, the carbon footprint analysis results can be visualized by graphing, tabulating, color-coding, etc., and displayed in the BIM model, so that the carbon footprint can be quantified, making it more intuitive and easy to understand, enhancing the efficiency of information dissemination and application, facilitating subsequent simulation research and parameter optimization, etc., and promoting the low-carbon transformation of the construction industry.

[0038] The BIM-based building carbon footprint quantification method of this embodiment generates a bill of quantities for each construction stage by coupling the procurement management data of each construction stage of the building to be monitored and the engineering management data of each construction stage with the BIM data in the BIM model of the building to be monitored, thereby reducing the difficulty of data collection and improving the efficiency and accuracy of data collection. It also performs intelligent matching through the life cycle factor library to realize automatic calculation of the carbon footprint list and carbon footprint analysis results, and uses the BIM model for multi-dimensional visualization. This allows for refined and dynamic management of carbon emissions throughout the life cycle of the building, and can comprehensively and accurately consider the impact of each stage and factor of the building on carbon emissions, helping to promote low-carbonization of the entire life cycle of building design, procurement, and construction.

[0039] In a specific implementation process, the life cycle of a building usually includes five main stages: material production stage, transportation stage, construction stage, operation stage, and demolition stage. Through the method of the above embodiment, the carbon emissions of each stage can be quantified, the carbon footprint of the building can be comprehensively evaluated, and targeted emission reduction strategies can be formulated. However, in actual applications, it is found that there are often deviations from the analysis results in the operation stage. Further research on this technical defect found that the cause of the deviation is related to the operator in the building, where the building here can be a civil building, such as a residential building, or a production building, such as a hydropower station. The operator in the building can be the owner of the building (such as the owner of a residential building) or the manager of the building (such as the manager of a hydropower station), and this embodiment does not make specific restrictions.

[0040] Based on the above findings, the present invention also provides the following technical solution, which is mainly aimed at quantifying the carbon footprint of buildings in the operation stage: Specifically, Figure 2 This is the second flow chart of the method for quantifying the building carbon footprint based on BIM provided in an embodiment of the present invention.

[0041] like Figure 2 As shown, the method for quantifying the building carbon footprint based on BIM provided in the embodiment of the present invention mainly includes the following steps: 201. During the operation phase, obtaining the behavior habit data of the actual operator of the building to be monitored; In a specific implementation process, it has been found through research that for the same building, after it is put into use (operation phase), different operators have different behavioral habits, which makes the operators themselves have different carbon footprints. The carbon footprints of different operators will have a certain impact on the carbon footprint of the building, which may cause different impacts on the low carbonization of the building. Therefore, in the operation phase of the building, the behavior of the operator can be monitored in real time by installing smart meters, sensors and other equipment, and the behavioral habit data of the actual operator of the building to be monitored can be obtained to provide dynamic data for carbon footprint quantification.

[0042] 202. Determine the carbon footprint of the actual operator based on the behavioral habit data of the actual operator; In a specific implementation process, the energy usage habits of different operators (such as air conditioning, lighting, and the frequency of electrical appliance use) will directly affect the operational energy consumption of the building. For example, operators who frequently use air conditioning or heating will increase the energy consumption of the building, thereby increasing carbon emissions. The operator's maintenance of buildings, building equipment, etc. will affect the service life of building materials, building equipment, etc., resulting in different carbon emissions. The intensity of the operator's activities will produce different carbon emissions and affect the carbon footprint of the building. For example, the use of high-energy consumption equipment (such as old electrical appliances) will increase carbon emissions, and the frequent use of equipment will increase carbon emissions. Therefore, in this embodiment, the actual operator's behavioral habit data may include: operator energy consumption, operator activity intensity, and operator daily maintenance data. The operator's energy consumption includes at least one of electricity energy consumption, gas energy consumption and fuel oil energy consumption; the operator's activity intensity includes at least one of the number of times building equipment is used, the length of time building equipment is used, and the power used by building equipment, wherein the building equipment here may include electrical equipment purchased by the operator in the building, or equipment required by the building itself, which is not specifically limited in this embodiment; the operator's daily maintenance data includes at least one of the number of times building equipment is maintained, the maintenance method of building equipment, the maintenance method of building materials, and the number of times building materials are maintained. The actual operator's carbon footprint can be obtained in the following manner: (1) obtaining a first carbon emission corresponding to the energy consumption according to a first calculation formula and the energy consumption of the operator; Wherein, the first calculation formula is: ,in, Indicates the first carbon emissions generated by energy consumption, represents the consumption of the i-th energy source, represents the carbon emission factor of the i-th energy source; Specifically, taking the consumption of electricity and gas as an example, the operator's monthly electricity consumption is 200kWh, and the carbon emission factor of electricity is 0.5 kgCO2e / kWh. The operator's monthly gas consumption is 30m 3 The carbon emission factor of electric energy is 2.75kgCO2e / m 3 , the first carbon emissions generated by the operator's energy consumption It is: 200×0.5+30×2.75=182.5 kgCO2e.

[0043] It should be noted that the numerical values ​​involved in the above examples are only exemplary and do not represent actual numerical values. The numerical values ​​involved in subsequent examples are the same and will not be described in detail.

[0044] (2) obtaining a second carbon emission amount corresponding to the activity according to the second calculation formula and the activity intensity of the operator; The second calculation formula is: ,in, Indicates the secondary carbon emissions generated by the activity, represents the data of the jth activity, represents the carbon emission factor of the jth activity.

[0045] Specifically, take the usage time and power of building equipment as an example: the operator uses a gas stove for 1 hour, and the carbon emission factor of the gas stove is 1 kgCO2e / h. The power of the water heater used by the operator is 1000W, and the carbon emission factor of electric energy is 0.5 kgCO2e / kW. The first carbon emission generated by the operator's energy consumption It is: 1×1+1000×0.5=501kgCO2e.

[0046] (3) obtaining a third carbon emission amount corresponding to the daily maintenance according to the third calculation formula and the daily maintenance data of the operator; The third calculation formula is: ,in, Represents the third carbon emissions generated by daily maintenance, represents the kth type of daily maintenance data, represents the carbon emission factor of the kth type of daily maintenance.

[0047] Specifically, take the number of times building equipment is maintained and the maintenance method of building materials as an example: the operator has maintained the air conditioner twice within half a year, and the carbon emission factor of air conditioner maintenance is 1 kgCO2e / time. The operator has painted the building wall, using 10 barrels, and the carbon emission factor of painting the building wall is 3 kgCO2e / barrel. The first carbon emission generated by the operator's energy consumption It is: 2×1+10×3=32kgCO2e.

[0048] (4) determining the carbon footprint of the actual operator according to the fourth calculation formula, the first carbon emissions, the second carbon emissions, and the third carbon emissions; The fourth calculation formula is: in, Indicates the carbon footprint of the actual operator, represents the weight coefficient of the first carbon emission, represents the weight coefficient of the second carbon emission, Represents the weight coefficient of the third carbon emission.

[0049] by For example, based on the above examples, it can be seen that the carbon footprint of the actual operator It is: 182.5×0.6+501×0.1+32×0.3=169.2kgCO2e.

[0050] 203. Determine the material impact value of the carbon footprint of the actual operator on the material performance of the material name according to the preset influence relationship of the carbon footprint on the material performance of different building materials; In a specific implementation process, the carbon footprints of different operators can be collected through big data, and the impact on the material properties of different building materials can be analyzed to construct the impact relationship of carbon footprint on the material properties of different building materials. The impact relationship can be a table or other forms, and this embodiment does not impose specific restrictions. In this way, the material impact value of the carbon footprint of the actual operator of the monitored building on the material properties of the material name can be determined based on the impact relationship. For example, for a certain building material A, the material properties of the building material A increase with the increase of the carbon footprint, showing a linear function, and the material impact value of the carbon footprint of the actual operator of the monitored building on the material properties of the material name can be determined based on the linear function.

[0051] 204. Determine the equipment impact value of the carbon footprint of the actual operator on the equipment performance of the equipment name according to the preset impact relationship between the carbon footprint and the equipment performance of different building equipment; In a specific implementation process, the implementation method of this step is similar to the implementation method of step 203, which will not be repeated here.

[0052] 205. If at least one of the material impact value and the equipment impact value indicates performance degradation, the basic carbon footprint of the operation stage is adjusted according to the correlation between the performance degradation value and the discount coefficient to obtain the actual carbon footprint of the operation stage.

[0053] In a specific implementation process, if the material impact value of the actual operator's carbon footprint on material performance indicates that the material performance will be reduced, and / or the equipment impact value on equipment performance indicates that the equipment performance will be reduced, this will often increase the carbon footprint of the entire building, that is, the carbon emissions of the entire building will be higher. In this way, there will be a deviation from the basic carbon footprint of the operation stage in the carbon footprint analysis results of each construction stage. Therefore, the discount coefficient corresponding to different performance degradation values ​​can be set in advance, so that the basic carbon footprint of the operation stage can be adjusted based on the correlation between the performance degradation value and the discount coefficient to obtain the actual carbon footprint of the operation stage. For example, the basic carbon footprint of the operation stage is BkgCO2e, and the discount coefficient is a. While ensuring safety, the actual carbon footprint of the operation stage can be kgCO2e, where b is the safety factor.

[0054] The BIM-based building carbon footprint quantification method of this embodiment can adjust the carbon footprint of the operation stage in real time according to the carbon footprint of the actual operator during the operation stage of the building, and can more accurately determine the actual carbon footprint of the operation stage.

[0055] In a specific implementation process, after obtaining the actual carbon footprint of the operation stage, the difference between the actual carbon footprint of the operation stage and the basic carbon footprint of the operation stage can also be calculated, and the difference can be compared with the preset difference. If the difference is greater than the preset difference, it means that the actual operator of the monitored building is a high-energy-consuming operator. For the operator, his living cost is high, and for the building, it also requires a high cost to maintain. Therefore, energy-saving prompt information can be generated and sent to the information receiving device of the actual operator. In this way, the actual operator is prompted to change his behavioral habits as much as possible to save energy.

[0056] In a specific implementation process, if the difference between the actual carbon footprint of the operation stage and the basic carbon footprint of the operation stage is still detected to be greater than the preset difference within the first preset time period after the energy-saving reminder information is sent, it means that the energy-saving reminder information has not played a positive effect on the actual operator. At this time, energy-saving reward information can be generated and sent to the information receiving device of the actual operator. Among them, the energy-saving reward information includes reward rules, reward application links, energy-saving strategies specified for the actual operator, etc. The actual operator can improve his behavior habits according to the energy-saving strategy. When the actual operator completes the energy-saving target corresponding to the reward rule within a period of time (the second preset time period after sending the energy-saving reward information), he can log in to the corresponding website or APP application interface through the reward application link to apply. The background server of the reward mechanism will send the reward value corresponding to the carbon footprint of the actual operator in the second preset time period to the account of the actual operator according to the preset association between the carbon footprint and the reward value. In this way, it can effectively help high-energy-consuming operators improve their behavior habits and realize the low-carbon transformation of the construction industry and high-energy-consuming operators.

[0057] Based on the same general inventive concept, the present invention also protects a BIM-based building carbon footprint quantification system. The BIM-based building carbon footprint quantification system provided by the present invention is described below. The BIM-based building carbon footprint quantification system described below and the BIM-based building carbon footprint quantification method described above can refer to each other.

[0058] Figure 3 It is a structural schematic diagram of a BIM-based building carbon footprint quantification system provided in an embodiment of the present invention. The BIM-based building carbon footprint quantification system may include a model coupling unit 31, a list generation unit 32 and a calculation and analysis unit 33.

[0059] The model coupling unit 31 is used to couple the procurement management data of each construction stage of the building to be monitored and the engineering management data of each construction stage with the BIM data in the BIM model of the building to be monitored to generate a bill of quantities for each construction stage; A carbon footprint inventory generating unit 32 is used to match the bill of quantities with a preset life cycle factor library to generate a carbon footprint inventory for each construction stage; The calculation and analysis unit 33 is used to perform analysis based on the carbon footprint inventory to generate carbon footprint analysis results of the building to be monitored at each construction stage, and perform visualization based on the carbon footprint analysis results to display the visualization results in the BIM model.

[0060] Based on the same general inventive concept, the present invention also protects an electronic device. Figure 4 It is a schematic diagram of the structure of an electronic device provided by an embodiment of the present invention.

[0061] like Figure 4 As shown, the electronic device may include: a processor 410, a communication interface 420, a memory 430 and a communication bus 440, wherein the processor 410, the communication interface 420 and the memory 430 communicate with each other through the communication bus 440. The processor 410 may call the logic instructions in the memory 430 to execute the BIM-based building carbon footprint quantification method, which includes: The procurement management data of each construction stage of the building to be monitored and the engineering management data of each construction stage are coupled with the BIM data in the BIM model of the building to be monitored to generate a bill of quantities for each construction stage; Matching the bill of quantities with a preset life cycle factor library to generate a carbon footprint inventory for each construction stage; Performing analysis based on the carbon footprint inventory to generate carbon footprint analysis results of the building to be monitored at each construction stage; Based on the carbon footprint analysis result, visualization processing is performed, and the visualization processing result is displayed in the BIM model.

[0062] In addition, the logic instructions in the above-mentioned memory 630 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0063] On the other hand, the present invention further provides a computer program product, the computer program product comprising a computer program, the computer program can be stored on a non-transitory computer-readable storage medium, and when the computer program is executed by a processor, the computer can execute the BIM-based building carbon footprint quantification method provided by the above methods, the method comprising: The procurement management data of each construction stage of the building to be monitored and the engineering management data of each construction stage are coupled with the BIM data in the BIM model of the building to be monitored to generate a bill of quantities for each construction stage; Matching the bill of quantities with a preset life cycle factor library to generate a carbon footprint inventory for each construction stage; Performing analysis based on the carbon footprint inventory to generate carbon footprint analysis results of the building to be monitored at each construction stage; Based on the carbon footprint analysis result, visualization processing is performed, and the visualization processing result is displayed in the BIM model.

[0064] In another aspect, the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon, which is implemented when the computer program is executed by a processor to perform the BIM-based building carbon footprint quantification method provided by the above methods, the method comprising: The procurement management data of each construction stage of the building to be monitored and the engineering management data of each construction stage are coupled with the BIM data in the BIM model of the building to be monitored to generate a bill of quantities for each construction stage; Matching the bill of quantities with a preset life cycle factor library to generate a carbon footprint inventory for each construction stage; Performing analysis based on the carbon footprint inventory to generate carbon footprint analysis results of the building to be monitored at each construction stage; Based on the carbon footprint analysis result, visualization processing is performed, and the visualization processing result is displayed in the BIM model.

[0065] It should be noted that the relevant operator personal information that may be involved in the various embodiments of this application is strictly in accordance with the requirements of laws and regulations, following the principles of legality, legitimacy and necessity, based on the reasonable purposes of business scenarios, to process the personal information that the operator actively provides during the use of products / services or generated due to the use of products / services, as well as the personal information obtained with the operator's authorization.

[0066] The operator's personal information processed by this application will vary depending on the specific product / service scenario, and shall be based on the specific scenario in which the operator uses the product / service, and may involve the operator's account information, device information, driving information, vehicle information or other related information. This application will treat the operator's personal information and its processing with a high degree of diligence.

[0067] This application attaches great importance to the security of the operator's personal information and has taken reasonable and feasible security protection measures that meet industry standards to protect the operator's information and prevent personal information from being accessed, disclosed, used, modified, damaged or lost without authorization.

[0068] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0069] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for quantifying building carbon footprint based on BIM, characterized in that: include: The procurement management data of each construction stage of the building to be monitored, the engineering management data of each construction stage and the BIM data in the BIM model of the building to be monitored are coupled to generate a bill of quantities for each construction stage; Intelligently matching the bill of quantities with a preset life cycle factor library to generate a carbon footprint list for each construction stage; Performing analysis based on the carbon footprint inventory to generate carbon footprint analysis results of the building to be monitored at each construction stage; Based on the carbon footprint analysis result, visualization processing is performed, and the visualization processing result is displayed in the BIM model.

2. The method for quantifying building carbon footprint based on BIM according to claim 1, characterized in that: The procurement management data includes building material data and building equipment data; the building material data includes material names, and the building equipment data includes equipment names; The construction stage includes an operation stage, and the carbon footprint analysis result includes a basic carbon footprint of the operation stage; The method further comprises: During the operation phase, obtaining behavioral habit data of the actual operator of the building to be monitored; Determining the carbon footprint of the actual operator based on the behavioral habit data of the actual operator; Determine the material impact value of the carbon footprint of the actual operator on the material performance of the material name according to the preset influence relationship of the carbon footprint on the material performance of different building materials, and determine the equipment impact value of the carbon footprint of the actual operator on the equipment performance of the equipment name according to the preset influence relationship of the carbon footprint on the equipment performance of different building equipment; If at least one of the material impact value and the equipment impact value indicates performance degradation, the basic carbon footprint of the operation stage is adjusted according to the correlation between the performance degradation value and the discount coefficient to obtain the actual carbon footprint of the operation stage.

3. The method for quantifying building carbon footprint based on BIM according to claim 2, characterized in that: Also includes: Determine the difference between the actual carbon footprint of the operation phase and the base carbon footprint of the operation phase; If the difference is greater than a preset difference, generating energy-saving prompt information; The energy-saving prompt information is sent to the information receiving device of the actual operator.

4. The method for quantifying building carbon footprint based on BIM according to claim 3, characterized in that: Also includes: Within a first preset time period after sending the energy-saving reminder information, if the difference is still greater than the preset difference, generating energy-saving reward information; Sending the energy-saving reward information to the information receiving device of the actual operator; Within a second preset time period after sending the energy-saving reward information, if an application request from the actual operator is monitored, the reward value corresponding to the carbon footprint of the actual operator within the second preset time period is sent to the account of the actual operator based on the preset association relationship between the carbon footprint and the reward value.

5. The method for quantifying building carbon footprint based on BIM according to any one of claims 2 to 4, characterized in that: The actual operator's behavior habit data includes: operator's energy consumption, operator's activity intensity and operator's daily maintenance data; Determine the carbon footprint of the actual operator based on the behavioral habit data of the actual operator, including: Obtaining a first carbon emission corresponding to the energy consumption according to the first calculation formula and the energy consumption of the operator; Obtaining a second carbon emission amount corresponding to the activity according to the second calculation formula and the activity intensity of the operator; Obtaining a third carbon emission amount corresponding to daily maintenance according to a third calculation formula and the operator's daily maintenance data; determining the carbon footprint of the actual operator according to a fourth calculation formula, the first carbon emissions, the second carbon emissions, and the third carbon emissions; Wherein, the first calculation formula is: ,in, Indicates the first carbon emissions generated by energy consumption, represents the consumption of the i-th energy source, represents the carbon emission factor of the i-th energy source; The second calculation formula is: ,in, Indicates the secondary carbon emissions generated by the activity, represents the data of the jth activity, represents the carbon emission factor of the jth activity; The third calculation formula is: ,in, Represents the third carbon emissions generated by daily maintenance, represents the kth type of daily maintenance data, represents the carbon emission factor of the kth routine maintenance; The fourth calculation formula is: in, Indicates the carbon footprint of the actual operator, represents the weight coefficient of the first carbon emission, represents the weight coefficient of the second carbon emission, Represents the weight coefficient of the third carbon emission.

6. The method for quantifying building carbon footprint based on BIM according to claim 5, characterized in that: The operator's energy consumption includes at least one of electricity energy consumption, gas energy consumption and fuel energy consumption; The operator activity intensity includes at least one of the number of times the construction equipment is used, the duration of use of the construction equipment, and the power used by the construction equipment; The operator's daily maintenance data includes at least one of the number of construction equipment maintenance, the construction equipment maintenance method, the construction material maintenance method, and the number of construction material maintenance.

7. The method for quantifying building carbon footprint based on BIM according to any one of claims 1 to 4, characterized in that: The procurement management data also includes at least one of a mode of transportation, a means of transportation, and a distance of transportation; The engineering management data include resource input data, waste disposal data and greenhouse gas direct emission data; The resource input data includes at least one of: energy name, energy statistical quantity, energy statistical unit, energy accounting unit, energy accounting unit conversion factor, energy specification model, energy source, energy data source, construction equipment name, construction equipment statistical quantity, construction equipment statistical unit, construction equipment accounting unit, construction equipment accounting unit conversion factor, construction equipment specification model, construction equipment source, and construction equipment data source; The waste disposal data includes at least one of the waste name, waste generation amount, waste disposal method, waste statistical unit, waste weight unit, waste weight conversion factor, waste data source and waste disposal location; The direct greenhouse gas emission data include greenhouse gas categories and / or greenhouse gas emissions.

8. The method for quantifying building carbon footprint based on BIM according to any one of claims 1 to 4, characterized in that: The bill of quantities is matched with a preset life cycle factor library to generate a carbon footprint inventory for each construction stage, including: Semantic recognition is performed on the bill of quantities and the life cycle factor library respectively to obtain key indicator information of the bill of quantities and key indicator information of the life cycle factor library; wherein the key indicator information of the bill of quantities and the key indicator information of the life cycle factor library both include technical indicator information, geographical indicator information, and time indicator information; Matching the key indicator information of the bill of quantities with the key indicator information of the life cycle factor library to obtain a score value of each indicator information; Based on the score values ​​of the indicator information and the preset matching factor indicator calculation formula, a deviation value of the matching factor is obtained; Input the deviation value of the matching factor into a pre-trained matching quality assessment model for assessment, output the matching factors whose deviation value is less than a preset threshold, and output the indicator list corresponding to the matching factors whose deviation value is greater than or equal to the preset threshold; Generate a carbon footprint list for each construction stage according to the output matching factor, the received matching factor and the bill of quantities, wherein the received matching factor is a matching factor fed back based on the indicator list; The matching factor index calculation formula is: in, represents the deviation value of the matching factor, represents the weight of the i-th indicator, Represents the score value of the i-th indicator information, i=1, 2, 3,,,n, Indicates the elimination of 0 constant.

9. The method for quantifying building carbon footprint based on BIM according to any one of claims 1 to 4, characterized in that: Based on the carbon footprint inventory, an analysis is performed to generate carbon footprint analysis results of the building to be monitored at each construction stage, including: The carbon footprint inventory is integrated to obtain the total carbon footprint of each emission source and the proportion of each emission source, and emission sources whose proportion is greater than a preset proportion threshold are marked as key emission sources.

10. A BIM-based building carbon footprint quantification system, characterized in that: include: The model coupling unit is used to couple the procurement management data of each construction stage of the building to be monitored, the engineering management data of each construction stage with the BIM data in the BIM model of the building to be monitored, and generate the bill of quantities for each construction stage A carbon footprint inventory generating unit, configured to integrate the procurement management data and the engineering management data to generate a bill of quantities for each construction phase, and to match the bill of quantities with a preset life cycle factor library to generate a carbon footprint inventory for each construction phase; The calculation and analysis unit is used to perform analysis based on the carbon footprint inventory to generate carbon footprint analysis results of the building to be monitored at each construction stage, and perform visualization processing based on the carbon footprint analysis results to display the visualization processing results in the BIM model.

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