Quantification Method and System for Building Carbon Footprint Based on BIM

Abstract

The present invention provides a method and system for quantifying the building carbon footprint based on BIM, including: coupling the procurement management data of each building stage, the project management data of each building stage with the BIM data in the BIM model of the building to be monitored to generate a bill of quantities for each building stage; intelligently matching the bill of quantities with a preset life cycle factor library to generate a carbon footprint list for each building stage; analyzing based on the carbon footprint list to generate a carbon footprint analysis result of the building to be monitored in each building stage; based on the carbon footprint analysis result, performing visualization processing and displaying the visualization processing result in the BIM model. In this way, the data collection efficiency and accuracy are improved, the carbon emissions in the whole life cycle of the building can be managed in a refined and dynamic manner, and the impacts of each stage and each factor of the building on carbon emissions can be comprehensively and accurately considered, which helps to promote the low-carbonization of the whole life cycle such as building design, procurement, and construction.

Description

Technical Field

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

[0002] The situation of global warming is severe. The construction industry is an important source of greenhouse gas emissions and accounts for a relatively high proportion of the total global carbon emissions. To address climate change, the international community has put forward clear requirements for carbon emission reduction in the construction industry, and it is necessary to quantify the building carbon footprint in order to formulate effective emission reduction measures.

[0003] Traditional quantification of building carbon footprint mainly relies on manual statistics and post-event analysis. However, this method is inefficient, difficult to conduct refined and dynamic management of carbon emissions throughout the building life cycle, and unable to comprehensively and accurately consider the impact of each stage and factor of the building on carbon emissions, thus failing to meet the current demand for low-carbon development in the construction industry. Summary of the Invention

[0004] The present invention provides a method and system for quantifying the building carbon footprint based on BIM, aiming to solve the defects in the prior art, such as low efficiency in quantifying carbon footprint, difficulty in conducting refined and dynamic management of carbon emissions throughout the building life cycle, and inability to comprehensively and accurately consider the impact of each stage and factor of the building on carbon emissions.

[0005] On the one hand, the present invention provides a method for quantifying the building carbon footprint based on BIM, which includes:

[0006] Coupling the procurement management data of each construction stage of the building to be monitored, the project management data of each construction stage, and the BIM data in the BIM model of the building to be monitored to generate a bill of quantities for each construction stage;

[0007] Matching the bill of quantities with a preset life cycle factor library to generate a carbon footprint list for each construction stage;

[0008] Analyzing based on the carbon footprint list to generate a carbon footprint analysis result of the building to be monitored at each construction stage;

[0009] Based on the carbon footprint analysis result, performing visualization processing and displaying the visualization processing result in the BIM model.

[0010] According to the method for quantifying the building carbon footprint based on BIM provided by the present invention, the procurement management data includes building material data and building equipment data; the building material data includes the material name, and the building equipment data includes the equipment name;

[0011] The construction stage includes the operation stage, and the carbon footprint analysis result includes the basic carbon footprint of the operation stage.

[0012] The method further includes:

[0013] In the operation stage, obtaining the behavior habit data of the actual operator of the building to be monitored;

[0014] Determining the carbon footprint of the actual operator according to the behavior habit data of the actual operator;

[0015] Determining the material influence value of the carbon footprint of the actual operator on the material performance of the material name according to the influence relationship between the preset carbon footprint and the material performance of different building materials, and determining the equipment influence value of the carbon footprint of the actual operator on the equipment performance of the equipment name according to the influence relationship between the preset carbon footprint and the equipment performance of different building equipment;

[0016] If at least one of the material influence value and the equipment influence value indicates a performance decline, adjusting the basic carbon footprint in the operation stage according to the correlation relationship between the performance decline value and the discount coefficient to obtain the actual carbon footprint in the operation stage.

[0017] According to a method for quantifying the building carbon footprint based on BIM provided by the present invention, it further includes:

[0018] Determining the difference between the actual carbon footprint in the operation stage and the basic carbon footprint in the operation stage;

[0019] If the difference is greater than a preset difference, generating an energy-saving prompt message;

[0020] Sending the energy-saving prompt message to the information receiving device of the actual operator.

[0021] According to a method for quantifying the building carbon footprint based on BIM provided by the present invention, it further includes:

[0022] Within a first preset time period after sending the energy-saving prompt message, if the difference is still greater than the preset difference, generating an energy-saving reward message;

[0023] Sending the energy-saving reward message to the information receiving device of the actual operator;

[0024] Within a second preset time period after sending the energy-saving reward message, if an application request of the actual operator is detected, according to the correlation relationship between the preset carbon footprint and the reward value, sending the reward value corresponding to the carbon footprint of the actual operator within the second preset time period to the account of the actual operator.

[0025] A quantification method of building carbon footprint based on BIM provided by the present invention, wherein the behavior habit data of the actual operator includes: operator energy consumption, operator activity intensity, and operator daily maintenance data;

[0026] Determining the carbon footprint of the actual operator according to the behavior habit data of the actual operator includes:

[0027] Obtaining the first carbon emission corresponding to the energy consumption according to the first calculation formula and the operator energy consumption;

[0028] Obtaining the second carbon emission corresponding to the activity according to the second calculation formula and the operator activity intensity;

[0029] Obtaining the third carbon emission corresponding to the daily maintenance according to the third calculation formula and the operator daily maintenance data;

[0030] Determining the carbon footprint of the actual operator according to the fourth calculation formula, the first carbon emission, the second carbon emission, and the third carbon emission;

[0031] Wherein, the first calculation formula is:

[0032] , wherein, represents the first carbon emission generated by the energy consumption, represents the consumption of the i-th type of energy, represents the carbon emission factor of the i-th type of energy;

[0033] The second calculation formula is:

[0034] , wherein, represents the second carbon emission generated by the activity, represents the data of the j-th type of activity, represents the carbon emission factor of the j-th type of activity;

[0035] The third calculation formula is:

[0036] , wherein, represents the third carbon emission generated by the daily maintenance, represents the data of the k-th type of daily maintenance, represents the carbon emission factor of the k-th type of daily maintenance;

[0037] The fourth calculation formula is:

[0038] Wherein, represents the carbon footprint of the actual operator, represents the weight coefficient of the first carbon emission, The weight coefficient representing the second carbon emission The weight coefficient representing the third carbon emission.

[0039] According to a method for quantifying the building carbon footprint based on BIM provided by the present invention, the operator's energy consumption includes at least one of electric energy consumption, gas energy consumption, and fuel energy consumption;

[0040] The operator's activity intensity includes at least one of the number of times of using building equipment, the usage duration of building equipment, the usage power of building equipment, the types of operator's sports items, the sports duration of the operator, the number of indoor ventilation times, and the indoor ventilation duration;

[0041] The operator's daily maintenance data includes at least one of the number of times of building equipment maintenance, the building equipment maintenance method, the building material maintenance method, and the number of times of building material maintenance.

[0042] According to a method for quantifying the building carbon footprint based on BIM provided by the present invention, the procurement management data further includes at least one of the transportation method, the transportation tool, and the transportation distance;

[0043] The project management data includes resource input data, waste disposal data, and direct greenhouse gas emission data;

[0044] The resource input data includes at least one of the energy name, the energy statistical quantity, the energy statistical unit, the energy accounting unit, the energy accounting unit conversion factor, the energy specification model, the energy source, the data source of the energy, the name of the construction equipment, the construction equipment statistical quantity, the construction equipment statistical unit, the construction equipment accounting unit, the construction equipment accounting unit conversion factor, the construction equipment specification model, the construction equipment source, and the data source of the construction equipment;

[0045] The waste disposal data includes at least one of the waste name, the waste generation quantity, the waste disposal method, the waste statistical unit, the waste weight unit, the waste weight conversion factor, the data source of the waste, and the waste disposal location;

[0046] The direct greenhouse gas emission data includes the greenhouse gas category and / or the greenhouse gas emission amount.

[0047] According to a method for quantifying the building carbon footprint based on BIM provided by the present invention, matching the bill of quantities with a preset life cycle factor library to generate a carbon footprint list for each building stage, including:

[0048] Semantically recognize the engineering quantity list and the life cycle factor library respectively to obtain the key index information of the engineering quantity list and the key index information of the life cycle factor library; wherein, the key index information of the engineering quantity list and the key index information of the life cycle factor library both include technical index information, geographical index information, and time index information;

[0049] Match the key index information of the engineering quantity list and the key index information of the life cycle factor library to obtain the score values of each index information;

[0050] Based on the score values of each index information and the preset matching factor index calculation formula, obtain the deviation value of the matching factor;

[0051] Input the deviation value of the matching factor into a pre-trained matching quality evaluation model for evaluation, output the matching factors with deviation values less than the preset threshold, and output the index list corresponding to the matching factors with deviation values greater than or equal to the preset threshold;

[0052] Generate the carbon footprint list for each construction stage according to the output matching factors, the received matching factors, and the engineering quantity list, wherein the received matching factors are the matching factors feedback based on the index list;

[0053] Among them, the matching factor index calculation formula is:

[0054]

[0055] Among them, represents the deviation value of the matching factor, represents the weight of the i-th type of index, represents the score value of the i-th type of index information, i = 1, 2, 3,..., n, represents the anti-0 constant.

[0056] On the other hand, the present invention also provides a BIM-based building carbon footprint quantification system, which includes:

[0057] A model coupling unit for coupling the procurement management data of each construction stage of the building to be monitored, the project management data of each construction stage with the BIM data in the BIM model of the building to be monitored to generate an engineering quantity list for each construction stage;

[0058] A carbon footprint list generation unit for matching the engineering quantity list with a preset life cycle factor library to generate a carbon footprint list for each construction stage;

[0059] A calculation and analysis unit, configured to analyze based on the carbon footprint inventory, generate carbon footprint analysis results of the building to be monitored at each building stage, and perform visualization processing based on the carbon footprint analysis results, and display the visualization processing results in the BIM model.

[0060] On the other hand, the present invention also provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, it implements the quantification method of building carbon footprint based on BIM as described in any one of the above.

[0061] On the other hand, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it implements the quantification method of building carbon footprint based on BIM as described in any one of the above.

[0062] On the other hand, the present invention also provides a computer program product, including a computer program. When the computer program is executed by a processor, it implements the quantification method of building carbon footprint based on BIM as described in any one of the above.

[0063] The quantification method of building carbon footprint based on BIM provided by the present invention couples the procurement management data of each building stage and the project management data of each building stage of the building to be monitored with the BIM data in the BIM model of the building to be monitored to generate a bill of quantities for each building stage, reduces the difficulty of data collection, improves the data collection efficiency and accuracy, and realizes the automatic calculation of the carbon footprint inventory and carbon footprint analysis results through intelligent matching using the life cycle factor library, and uses the BIM model for multi-dimensional visualization display, so as to perform refined and dynamic management of the carbon emissions in the whole life cycle of the building, and can comprehensively and accurately consider the impact of each stage and each factor of the building on carbon emissions, which helps to promote the low-carbonization of the whole life cycle of building design, procurement, construction, etc. Description of the Drawings

[0064] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0065] Figure 1 is one of the flow diagrams of the quantification method of building carbon footprint based on BIM provided by the embodiments of the present invention;

[0066] Figure 2 is the second flow diagram of the quantification method of building carbon footprint based on BIM provided by the embodiments of the present invention;

[0067] Figure 3 It is a schematic structural diagram of a BIM-based building carbon footprint quantification system provided by an embodiment of the present invention;

[0068] Figure 4 It is a schematic structural diagram of an electronic device provided by an embodiment of the present invention. Specific embodiments

[0069] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0070] Figure 1 It is one of the schematic flowcharts of a BIM-based building carbon footprint quantification method provided by an embodiment of the present invention.

[0071] As Figure 1 shown, for the BIM-based building carbon footprint quantification method provided by an embodiment of the present invention, the execution subject may be the control in the electronic device, and the method mainly includes the following steps:

[0072] 101. Couple the procurement management data of each construction stage of the building to be monitored, the project management data of each construction stage, and the BIM data in the BIM model of the building to be monitored;

[0073] BIM is the abbreviation of Building Information Modeling. It is a building design, construction and management method based on digital technology. Through digital technology, each link in the building design, construction and management process is integrated into one model. The BIM model has characteristics such as three-dimensional visualization, information integration, parametric design and collaborative work. It can create an intuitive three-dimensional building model, facilitating the understanding and communication of all participating parties.

[0074] The BIM model contains rich data throughout the entire life cycle of a building from design to operation and demolition, such as BIM data on the types and quantities of building materials, equipment information, construction progress, etc. These data are the basis for quantifying the building's carbon footprint and can provide accurate and comprehensive information for carbon footprint calculation, avoiding the difficulties and inaccuracies in data collection in traditional methods. However, these data lack information such as material quality, manufacturer, and weight. Therefore, they can be coupled with procurement management data and project management data at each building stage to obtain a bill of quantities that meets the requirements of the carbon footprint, making the parameters included in the bill of quantities more comprehensive. Among them, the bill of quantities can include information such as project basic information, sub - projects (civil engineering, installation engineering, etc.), details of the quantities of work, and measurement units.

[0075] In a specific implementation process, the procurement management data can include building material data, building equipment data, transportation data, etc. Among them, the building material data can 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, main components of the material, data source of the material (measured value / calculated value / estimated value), and place of origin of the material. The building equipment data can include at least one of equipment name (such as elevator, etc.), equipment quantity, equipment weight, equipment service life, main material of the equipment, production energy consumption of the equipment, and place of origin of the equipment. The transportation data includes at least one of transportation mode, transportation vehicle, and transportation distance.

[0076] In a specific implementation process, the project management data includes resource input data, waste disposal data, and direct greenhouse gas emission data.

[0077] The resource input data includes 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, data source of the energy, name of construction equipment (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 data source of the construction equipment;

[0078] The waste disposal data includes at least one of waste name, waste generation quantity, waste disposal method, waste statistical unit, waste weight unit, waste weight conversion factor, data source of the waste, and waste disposal location;

[0079] The direct greenhouse gas emission data includes greenhouse gas category and / or greenhouse gas emission quantity.

[0080] 102. Match the engineering quantity list with a preset life cycle factor library to generate a carbon footprint list for each construction stage;

[0081] In a specific implementation process, at least one of geographical representative keywords, time representative keywords, and technical representative keywords is set in both the engineering quantity list and the engineering quantity list. These keywords can be used as corresponding index information, that is, the key index information of the engineering quantity list and the key index information of the life cycle factor library both include technical index information, geographical index information, and time index information. Among them, the geographical representative keyword reflects the geographical location characteristics of the data in the engineering quantity list and the life cycle factor library, ensuring that the data is consistent with the environmental, resource, and technical conditions of the project location. The time representative keyword reflects the time characteristics of the data in the engineering quantity list and the life cycle factor library, ensuring that the data is consistent with the time background of the project. The technical representative keyword reflects the technical characteristics of the data in the engineering quantity list and the life cycle factor library, ensuring that the data is consistent with the technologies and processes adopted by the project. The technical representative keywords include category, model, composition, processing method, etc.

[0082] Step 102 can be implemented in the following ways:

[0083] a. Perform semantic recognition on the engineering quantity list and the life cycle factor library respectively to obtain the key index information of the engineering quantity list and the key index information of the life cycle factor library;

[0084] In a specific implementation process, the BERT model can be used (but not limited to) to obtain semantic vector representations and get the key index information of the engineering quantity list and the key index information of the life cycle factor library.

[0085] b. Match the key index information of the engineering quantity list and the key index information of the life cycle factor library to obtain the score values of each index information;

[0086] In a specific implementation process, semantic matching can be performed using cosine similarity or Euclidean distance, etc., to obtain the score values of each index information. Among them, the score value can be represented by 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 the technical representative keywords can be divided into three levels: the same, similar, and different, and are respectively assigned 1 - 3 points; the time indicators corresponding to the time representative keywords are divided into ≤1 year, ≤2 years, ≤3 years, >3 years, and are respectively assigned 1 - 4 points; the geographical indicators corresponding to the geographical representative keywords are divided into the same province, the same country, the same region, and different regions, and are respectively assigned 1 - 4 points.

[0087] c. Obtain the deviation value of the matching factor based on the score values of the respective index information and the preset matching factor index calculation formula;

[0088] In a specific implementation process, the matching factor index calculation formula is:

[0089]

[0090] Wherein, represents the deviation value of the matching factor, represents the weight of the i-th type of index, and the sum of the weights of each index is equal to 1, represents the score value of the i-th type of index information, i = 1, 2, 3,..., n, represents the anti-removal 0 constant. In this calculation formula, taking the modulus length of the weight as the normalization factor can avoid the result deviation caused by some weights being too large, and due to the existence of , there is still a small value in the denominator in extreme cases (the sum of the moduli of all weights is 0). Among them, the weight of the technical index can be 50%, the weight of the time index can be 20%, and the weight of the geographical index can be 30%.

[0091] d. Input the deviation value of the matching factor into a pre-trained matching quality evaluation model for evaluation, and output the index list corresponding to the matching factor whose deviation value is greater than or equal to the preset threshold;

[0092] In a specific implementation process, if the deviation value is less than the preset threshold, the matching quality is high, then output the matching factor with the deviation value less than the preset threshold; if the deviation value is greater than or equal to the preset threshold, the matching quality is low, then output the index list corresponding to the matching factor whose deviation value is greater than or equal to the preset threshold, so as to narrow the screening range and perform artificial screening and then give feedback;

[0093] e. Generate the carbon footprint list for each construction stage according to the output matching factor, the received matching factor, and the bill of quantities.

[0094] In a specific implementation process, the specific generation process of the carbon footprint list for each construction stage can refer to the existing relevant technologies and will not be elaborated here again.

[0095] 103. Analyze based on the carbon footprint list to generate the carbon footprint analysis results of the building to be monitored at each construction stage;

[0096] In a specific implementation process, the carbon footprint inventory can reflect all emission sources and their corresponding carbon emissions in each construction stage. By integrating the information contained in the carbon footprint inventory through classification, calculation, statistics, etc., the carbon footprint analysis results of the building to be monitored in each construction stage can be finally generated. 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, etc. That is, the total carbon footprint and the proportion of each emission source in different stages, different materials, different construction methods, etc. can be obtained. Among them, the key emission source is the emission source whose proportion is greater than the preset proportion threshold.

[0097] 104. Based on the carbon footprint analysis results, perform visualization processing and display the visualization processing results in the BIM model.

[0098] In a specific implementation process, the obtained carbon footprint analysis results can be visually processed such as graphically, tabularly, and marked with different colors, and displayed in the BIM model, so that the carbon footprint can be quantified, making the carbon footprint more intuitive and understandable, enhancing the information dissemination and application efficiency, facilitating subsequent simulation research and parameter optimization, etc., and further promoting the low-carbon transformation of the construction industry.

[0099] The method for quantifying the building carbon footprint based on BIM in this embodiment couples the procurement management data in each construction stage of the building to be monitored, the project management data in each construction stage with the BIM data in the BIM model of the building to be monitored to generate the bill of quantities in each construction stage, reduces the difficulty of data collection, improves the data collection efficiency and accuracy, and realizes the automatic calculation of the carbon footprint inventory and carbon footprint analysis results through intelligent matching using the life cycle factor library, and uses the BIM model for multi-dimensional visual display, so that the carbon emissions in the whole life cycle of the building can be refined and dynamically managed, and the impacts of each stage and each factor of the building on carbon emissions can be comprehensively and accurately considered, which helps to promote the low-carbonization of the whole life cycle of building design, procurement, construction, etc.

[0100] In a specific implementation process, the life cycle of a building generally includes five main stages: material production stage, transportation stage, construction stage, operation stage, and demolition stage. Through the method of the above embodiments, 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 practical applications, it is found that there are often deviations from the analysis results in the operation stage. Further research on this technical defect reveals that the reason for the deviation is related to the operators in the building. Here, the building 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 homeowner of a residential building) or the management personnel of the building (such as the manager of a hydropower station). This embodiment does not make specific restrictions.

[0101] Based on the above findings, the present invention also provides the following technical solution, which mainly quantifies the carbon footprint of a building in the operation stage:

[0102] Specifically, Figure 2 is the second flow chart of the method for quantifying the carbon footprint of a building based on BIM provided by the embodiments of the present invention.

[0103] As Figure 2 shown, the method for quantifying the carbon footprint of a building based on BIM provided by the embodiments of the present invention mainly includes the following steps:

[0104] 201. In the operation stage, obtain the behavior habit data of the actual operator of the building to be monitored;

[0105] In a specific implementation process, through research, it is found that for the same building, after it is put into use (operation stage), different operators have different behavior habits, so that 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, and may cause different impacts on the low-carbonization of the building. Therefore, in the operation stage of the building, by installing devices such as smart meters and sensors, the behavior of the operator can be monitored in real time, and the behavior habit data of the actual operator of the building to be monitored can be obtained, providing dynamic data for carbon footprint quantification.

[0106] 202. Determine the carbon footprint of the actual operator according to the behavior habit data of the actual operator;

[0107] In a specific implementation process, the energy usage habits of different operators (such as the usage frequencies of air conditioners, lighting, and electrical appliances) will directly affect the operating energy consumption of a building. For example, an operator who frequently uses air conditioners or heaters will increase the building's energy consumption, thereby increasing carbon emissions. The maintenance of the building, building equipment, etc. by the operator will affect the service life of building materials, building equipment, etc., thus resulting in different carbon emission situations. The activity intensity of the operator will generate different carbon emissions and affect the carbon footprint of the building. For example, using high-energy-consuming equipment (such as old electrical appliances) will increase carbon emissions, and using equipment more frequently will increase carbon emissions, etc. Therefore, in this embodiment, the behavior habit data of the actual operator may include: the energy consumption of the operator, the activity intensity of the operator, and the daily maintenance data of the operator. The energy consumption of the operator includes at least one of the electricity energy consumption, gas energy consumption, and fuel energy consumption; the activity intensity of the operator includes at least one of the number of times of using building equipment, the usage duration of building equipment, and the usage power of building equipment. Here, the building equipment may include the electrical equipment purchased by the operator in the building or the equipment required by the building itself. This embodiment does not make specific restrictions; the daily maintenance data of the operator includes at least one of the number of times of maintaining building equipment, the maintenance method of building equipment, the maintenance method of building materials, and the number of times of maintaining building materials. The carbon footprint of the actual operator can be obtained according to the following method:

[0108] (1) According to the first calculation formula and the energy consumption of the operator, obtain the first carbon emission corresponding to the energy consumption;

[0109] Wherein, the first calculation formula is:

[0110] , where represents the first carbon emission generated by the energy consumption, represents the consumption of the i-th type of energy, represents the carbon emission factor of the i-th type of energy;

[0111] Specifically, taking the electricity energy consumption and gas energy consumption as an example, the monthly electricity consumption of this operator is 200 kWh, and the carbon emission factor of electricity energy is 0.5 kgCO2e / kWh. The monthly gas consumption of this operator is 30 m 3 , and the carbon emission factor of electricity energy is 2.75 kgCO2e / m 3 , and the first carbon emission generated by the energy consumption of this operator is: 200×0.5 + 30×2.75 = 182.5 kgCO2e.

[0112] It should be noted that the values involved in the above examples are only for illustrative purposes and do not represent actual values. The same is true for the values involved in subsequent examples, and no further explanation will be given later.

[0113] (2) Obtain the second carbon emission corresponding to the activity according to the second calculation formula and the operator activity intensity;

[0114] The second calculation formula is:

[0115] , where represents the second carbon emission generated by the activity, represents the data of the j-th activity, represents the carbon emission factor of the j-th activity.

[0116] Specifically, taking the usage duration of building equipment and the equipment usage power as examples: The operator uses a gas stove for 1 hour, and the carbon emission factor of using 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 is: 1×1 + 1000×0.5 = 501 kgCO2e.

[0117] (3) Obtain the third carbon emission corresponding to the daily maintenance according to the third calculation formula and the operator's daily maintenance data;

[0118] The third calculation formula is:

[0119] , where represents the third carbon emission generated by the daily maintenance, represents the data of the k-th daily maintenance, represents the carbon emission factor of the k-th daily maintenance.

[0120] Specifically, taking the number of times of building equipment maintenance and the building material maintenance method as examples: The operator maintains the air conditioner 2 times within half a year, and the carbon emission factor of maintaining the air conditioner is 1 kgCO2e / time. The operator paints the building wall, and the usage amount is 10 barrels. The carbon emission factor of painting the building wall is 3 kgCO2e / barrel. The first carbon emission generated by the operator's energy consumption is: 2×1 + 10×3 = 32 kgCO2e.

[0121] (4) Determine the carbon footprint of the actual operator according to the fourth calculation formula, the first carbon emission, the second carbon emission, and the third carbon emission;

[0122] The fourth calculation formula is:

[0123] where Represents 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.

[0124] Taking as an example, based on the above examples, the carbon footprint of the actual operator is: 182.5×0.6 + 501×0.1 + 32×0.3 = 169.2kgCO2e.

[0125] 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 between the carbon footprint and the material performance of different building materials;

[0126] In a specific implementation process, the carbon footprints of different operators can be collected through big data, and the influence on the material performance of different building materials can be analyzed to construct the influence relationship between the carbon footprint and the material performance of different building materials. This influence relationship can be in the form of a table or other forms, which is not specifically limited in this embodiment. In this way, according to this influence relationship, the material impact value of the carbon footprint of the actual operator of the building to be monitored on the material performance of the material name can be determined. For example, for a certain building material A, the material performance of this building material A increases 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 building to be monitored on the material performance of the material name can be determined according to this linear function.

[0127] 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 influence relationship between the carbon footprint and the equipment performance of different building equipment;

[0128] In a specific implementation process, the implementation method of this step is similar to that of step 203, and will not be elaborated here.

[0129] 205. If at least one of the material impact value and the equipment impact value indicates a performance decline, adjust the basic carbon footprint of the operation stage according to the correlation relationship between the performance decline value and the discount coefficient to obtain the actual carbon footprint of the operation stage.

[0130] In a specific implementation process, if the material impact value of the carbon footprint of the actual operator on the material properties indicates a decrease in material properties, and / or the equipment impact value on the equipment performance indicates a decrease in equipment performance, this will often lead to an increase in the carbon footprint of the entire building, that is, the carbon emissions of the entire building will increase. In this way, it will deviate from the basic carbon footprint in the operation stage of the carbon footprint analysis results of each building stage. Therefore, discount coefficients corresponding to different performance degradation values can be preset, so that the correlation between the performance degradation value and the discount coefficient can be used to adjust the basic carbon footprint in the operation stage to obtain the actual carbon footprint in the operation stage. For example, the basic carbon footprint in the operation stage is BkgCO2e, and the discount coefficient is a. Under the condition of ensuring safety, the actual carbon footprint in the operation stage can be kgCO2e, where b is the safety factor.

[0131] The method for quantifying the building carbon footprint based on BIM in this embodiment can, in the operation stage of the building, adjust the carbon footprint in the operation stage in real time according to the carbon footprint of the actual operator, and can more accurately determine the actual carbon footprint in the operation stage.

[0132] In a specific implementation process, after obtaining the actual carbon footprint in the operation stage, the difference between the actual carbon footprint in the operation stage and the basic carbon footprint in the operation stage can also be calculated and compared with a preset difference. If the difference is greater than the preset difference, it indicates that the actual operator of the building to be monitored is a high-energy-consuming operator. For the operator, its living cost is relatively high, and for the building, it also requires a relatively high cost to maintain. Therefore, an energy-saving prompt message can be generated and sent to the information receiving device of the actual operator, so as to prompt the actual operator to change their behavior habits as much as possible, thereby saving energy consumption.

[0133] In a specific implementation process, if within the first preset time period after sending the energy-saving prompt information, it is still detected that the difference between the actual carbon footprint in the operation stage and the basic carbon footprint in the operation stage is greater than the preset difference, it indicates that the energy-saving prompt information has not achieved a positive effect for the actual operator. At this time, an energy-saving reward information can be generated and sent to the information receiving device of the actual operator. The energy-saving reward information includes a reward rule, a reward application link, an energy-saving strategy specified for the actual operator, etc. The actual operator can improve their behavior habits according to the energy-saving strategy. When the actual operator completes the energy-saving target corresponding to the reward rule within a certain period of time (the second preset time period after sending the energy-saving reward information), they 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, according to the preset correlation between the carbon footprint and the reward value, send the reward value corresponding to the carbon footprint of the actual operator within the second preset time period to the account of the actual operator. In this way, it can effectively help high-energy-consuming operators improve their behavior habits and achieve the low-carbon transformation of the construction industry and high-energy-consuming operators.

[0134] 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 will be described below. The BIM-based building carbon footprint quantification system described below can be mutually corresponding and referred to with the BIM-based building carbon footprint quantification method described above.

[0135] Figure 3 It is a schematic structural diagram of the BIM-based building carbon footprint quantification system provided by an embodiment of the present invention. The BIM-based building carbon footprint quantification system can include a model coupling unit 31, a list generation unit 32, and a calculation and analysis unit 33.

[0136] The model coupling unit 31 is used to couple the procurement management data of each construction stage of the building to be monitored, the project management data of each construction stage, and the BIM data in the BIM model of the building to be monitored, and generate a bill of quantities for each construction stage.

[0137] The carbon footprint list generation unit 32 is used to match the bill of quantities with a preset life cycle factor library to generate a carbon footprint list for each construction stage.

[0138] The calculation and analysis unit 33 is used to analyze based on the carbon footprint list, generate a carbon footprint analysis result of the building to be monitored in each construction stage, and perform visualization processing based on the carbon footprint analysis result, and display the visualization processing result in the BIM model.

[0139] Based on the same general inventive concept, the present invention also protects an electronic device. Figure 4 It is a schematic structural diagram of the electronic device provided by an embodiment of the present invention.

[0140] As Figure 4 shown, the electronic device may include: a processor 410, a communications interface 420, a memory 430, and a communication bus 440. Among them, the processor 410, the communications interface 420, and the memory 430 complete communication with each other through the communication bus 440. The processor 410 may call logical instructions in the memory 430 to execute a method for quantifying the building carbon footprint based on BIM. The method includes:

[0141] Coupling the procurement management data of each construction stage of the building to be monitored, the project management data of each construction stage, and the BIM data in the BIM model of the building to be monitored to generate a bill of quantities for each construction stage;

[0142] Matching the bill of quantities with a preset life cycle factor library to generate a carbon footprint list for each construction stage;

[0143] Analyzing based on the carbon footprint list to generate a carbon footprint analysis result for the building to be monitored in each construction stage;

[0144] Based on the carbon footprint analysis result, performing visualization processing and displaying the visualization processing result in the BIM model.

[0145] In addition, when the logical instructions in the above-mentioned memory 630 are implemented in the form of software functional units and sold or used as an independent product, they may be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of this technical solution, may be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs that can store program codes.

[0146] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the method for quantifying the building carbon footprint based on BIM provided by the above-mentioned various methods. The method includes:

[0147] Couple the procurement management data of each construction stage of the building to be monitored, the project management data of each construction stage, and the BIM data in the BIM model of the building to be monitored to generate a bill of quantities for each construction stage;

[0148] Match the bill of quantities with a preset life cycle factor library to generate a carbon footprint list for each construction stage;

[0149] Analyze based on the carbon footprint list to generate a carbon footprint analysis result for the building to be monitored at each construction stage;

[0150] Based on the carbon footprint analysis result, perform visualization processing and display the visualization processing result in the BIM model.

[0151] On the other hand, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it implements the method for quantifying the building carbon footprint based on BIM provided by the above-mentioned various methods. The method includes:

[0152] Couple the procurement management data of each construction stage of the building to be monitored, the project management data of each construction stage, and the BIM data in the BIM model of the building to be monitored to generate a bill of quantities for each construction stage;

[0153] Match the bill of quantities with a preset life cycle factor library to generate a carbon footprint list for each construction stage;

[0154] Analyze based on the carbon footprint list to generate a carbon footprint analysis result for the building to be monitored at each construction stage;

[0155] Based on the carbon footprint analysis result, perform visualization processing and display the visualization processing result in the BIM model.

[0156] It should be noted that the relevant operator personal information that may be involved in the embodiments of the present application is all processed in strict accordance with the requirements of laws and regulations, following the principles of legality, legitimacy, and necessity, for reasonable purposes based on business scenarios, and is the personal information actively provided by the operator during the use of the product / service or generated due to the use of the product / service, as well as the personal information obtained with the authorization of the operator.

[0157] The operator's personal information processed in this application may vary according to specific product / service scenarios. It shall be subject to the specific scenarios in which the operator uses the product / service and may involve the operator's account information, device information, driving information, vehicle information or other relevant information. This application will treat the operator's personal information and its processing with a high degree of diligence.

[0158] This application attaches great importance to the security of the operator's personal information and has taken security protection measures that meet industry standards and are reasonable and feasible to protect the operator's information and prevent personal information from being accessed, publicly disclosed, used, modified, damaged or lost without authorization.

[0159] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative effort.

[0160] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the essence of the above technical solutions, or the part that contributes to the prior art, can be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., including several instructions to enable 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.

[0161] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. 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 they can still modify the technical solutions recorded in the foregoing embodiments or equivalently replace some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of each embodiment 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; Semantic recognition is performed on the bill of quantities and the preset 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 prevention of 0 constant; Performing analysis based on the carbon footprint inventory to generate carbon footprint analysis results of the building to be monitored at each construction stage; Performing visualization based on the carbon footprint analysis result, and displaying the visualization result in the BIM model; Wherein, 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 the operation stage, and the carbon footprint analysis result includes the basic carbon footprint of the operation stage; 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.

2. The method for quantifying building carbon footprint based on BIM according to claim 1, 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.

3. The method for quantifying building carbon footprint based on BIM according to claim 2, 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.

4. The method for quantifying building carbon footprint based on BIM according to any one of claims 1 to 3, 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.

5. The method for quantifying building carbon footprint based on BIM according to claim 4, 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.

6. The method for quantifying building carbon footprint based on BIM according to any one of claims 1 to 3, 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.

7. The method for quantifying building carbon footprint based on BIM according to any one of claims 1 to 3, 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.

8. 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 generation unit is used to integrate the procurement management data and the engineering management data to generate a bill of quantities for each construction stage, and to perform semantic recognition on the bill of quantities and a preset life cycle factor library 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; match 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 value of each indicator information and a preset matching factor indicator calculation formula, obtain a deviation value of the matching factor; input the deviation value of the matching factor into a pre-trained matching quality assessment model for evaluation, output the matching factor with a deviation value less than a preset threshold, and output the indicator list corresponding to the matching factor with a deviation value greater than or equal to the preset threshold; generate a carbon footprint inventory 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; wherein the matching factor indicator 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 prevention of 0 constant; A calculation and analysis unit, configured to perform analysis based on the carbon footprint inventory, 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, and display the visualization processing results in the BIM model; Wherein, 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 the operation stage, and the carbon footprint analysis result includes the basic carbon footprint of the operation stage; The computing and analyzing unit is further used for: 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.

Images