A method, equipment, and medium for automatically generating an air supply system based on smoke control zones.

Abstract

This application discloses an automatic generation method, equipment, and medium for an air supply system based on smoke control zones. The method includes: reading the smoke control zone parameters, structural component geometric data, and HVAC equipment data of the area under the responsibility of the air supply room in the building information model, and calculating the exhaust volume and smoke exhaust volume based on the area and net height of the smoke control zone; calculating the supply volume and make-up air volume based on the exhaust volume and smoke exhaust volume, and matching the target fan model in the fan sample database; calculating the duct cross-sectional area based on the target fan model and standard duct velocity, selecting the target size with the highest matching degree with the duct cross-sectional area from the preset standard duct size library, and generating the minimum bounding rectangle bounding box of the corresponding fan accessory combination; obtaining the spatial contour data of the air supply room to perform spatial mapping matching between the minimum bounding rectangle bounding box and the room spatial contour, determining the optimal equipment layout scheme, and generating a three-dimensional model of the air supply system in the building information model based on the matching results.

Description

Technical Field

[0001] This application relates to the field of architectural design technology, and in particular to a method, equipment and medium for automatically generating an air supply system based on smoke control zones. Background Technology

[0002] In the field of building fire protection and ventilation design, the generation of air supply systems based on smoke control zones is a crucial step in basement engineering. While current mainstream 3D BIM design methods introduce auxiliary tools to improve efficiency, the core design process still heavily relies on manual operation. Designers must manually extract smoke control zone parameters from the building model, calculate the net height based on structural component data, and then derive the supply and exhaust air volumes using empirical formulas. After completing the calculations, they must repeatedly compare and select models from a fan sample library and manually coordinate duct dimensions with the machine room layout. This process involves a large amount of repetitive work, and the design quality is constrained by the experience level of the personnel.

[0003] Especially in BIM-driven design scenarios where design efficiency is paramount, existing technologies exhibit significant bottlenecks. Traditional tools cannot achieve coordinated optimization of equipment selection and spatial layout. After the fan model is determined, designers must manually verify its compatibility in the equipment room, and if space is insufficient, a new model must be selected. The selection of duct sizes lacks a dynamic matching mechanism with the building outline, leading to multiple reworks. More seriously, the equipment layout in non-standard outline equipment rooms relies entirely on trial and error. Designers must repeatedly adjust the position and quantity of fan assembly accessories, and may even be forced to lower the priority of fire safety regulations to meet space constraints.

[0004] The underlying flaw in existing solutions lies in the fragmented data flow and isolated decision-making processes. Parameter calculation, equipment selection, and spatial layout are broken down into discrete steps, lacking automated coordination mechanisms. For example, air volume calculation results cannot directly drive intelligent filtering in the fan database; no dynamic mapping rules have been established between the machine room outline data and the equipment boundary boxes; and the priority strategy for accessory combinations is not integrated into the spatial allocation algorithm. These deficiencies lead to extended design cycles and delayed change response. When building parameters are adjusted, designers must re-enact the entire manual decision-making process. Summary of the Invention

[0005] This application provides a method, device, and medium for automatically generating an air supply system based on smoke control zones, in order to solve the above-mentioned technical problems.

[0006] On the one hand, embodiments of this application provide a method for automatically generating an air supply system based on smoke control zones, including:

[0007] Read the smoke control zone parameters, structural component geometric data, and HVAC equipment data of the area under the responsibility of the air supply room in the building information model, and calculate the exhaust volume and smoke exhaust volume based on the smoke control zone area and net height in the smoke control zone parameters;

[0008] Based on the exhaust volume and the smoke exhaust volume, calculate the supply air volume and makeup air volume of the air supply room, and match the target fan model corresponding to the supply air volume and the makeup air volume in the fan sample database;

[0009] Based on the target fan model and standard duct wind speed, calculate the duct cross-sectional area, select the target size with the highest matching degree from the preset standard duct size library, and generate the minimum bounding rectangle bounding box of the fan accessory combination corresponding to the target size.

[0010] The spatial outline data of the air supply room is obtained, and the minimum bounding rectangle is spatially mapped and matched with the spatial outline of the room to determine the optimal equipment layout scheme. Based on the matching result, a three-dimensional model of the air supply system is generated in the building information model.

[0011] In one implementation of this application, the smoke control zone parameters, structural component geometric data, and HVAC equipment data for the area under the responsibility of the air supply room in the building information model are read, and based on the smoke control zone area and net height in the smoke control zone parameters, the specific steps include:

[0012] Read the civil engineering model, structural model, and HVAC model from the building information model;

[0013] Identify the physical room of the air supply fan room from the civil engineering model, extract the geometric data of the smoke control zone boundary, and calculate the smoke control zone area of ​​the air supply fan room based on the geometric data of the smoke control zone boundary.

[0014] Identify the special graphic elements marked as smoke control zones in the HVAC model to read the name identification information of the smoke control zones;

[0015] Extract the structural slab thickness data and structural beam position data of the air supply room from the structural model, and calculate the net height of the smoke control zone based on the structural slab thickness data and the preset floor height data; wherein, the net height of the smoke control zone is the maximum value in the set of calculation results.

[0016] In one implementation of this application, calculating the exhaust volume and smoke volume specifically includes:

[0017] Multiply the area of ​​the smoke control zone by the net height of the smoke control zone to calculate the basic volume value of the smoke control zone in the air supply room, and multiply the basic volume value by the preset air change rate to calculate the exhaust volume.

[0018] Based on the standard database for the net height of the smoke control zone, the corresponding baseline smoke exhaust volume is determined. When the net height of the smoke control zone is between two baseline intervals, the actual smoke exhaust volume is determined by linear interpolation.

[0019] In one implementation of this application, the supply air volume and makeup air volume of the air supply room are calculated based on the exhaust air volume and the smoke exhaust volume, and the target fan model corresponding to the supply air volume and the makeup air volume is matched in the fan sample database, specifically including:

[0020] Multiply the exhaust volume by the first preset proportional coefficient to output the supply air volume, and multiply the smoke exhaust volume by the second preset proportional coefficient to output the make-up air volume;

[0021] The aforementioned air supply volume is used as a screening condition for high-speed operation to conduct preliminary screening in the sample database, and the low-speed operation is verified to meet the air supply volume requirements in the preliminary screening results.

[0022] When both high-speed and low-speed operating conditions are met, the corresponding fan model is determined as a candidate solution, and the fan model with the smallest size is selected as the target fan model from all candidate solutions.

[0023] In one implementation of this application, the cross-sectional area of ​​the duct is calculated based on the target fan model and the standard duct velocity, and a target size with the highest matching degree to the cross-sectional area is selected from a preset standard duct size library. Specifically, this includes:

[0024] The cross-sectional area of ​​the duct is calculated based on the ratio of the rated air volume to the specified wind speed, and a set of standard sizes larger than the cross-sectional area of ​​the duct is searched in a preset standard duct size library; wherein, the rated air volume is used to represent the air volume of the selected fan corresponding to the target fan model;

[0025] Determine the size with the smallest difference from the cross-sectional area of ​​the duct from the set of standard sizes. When there are multiple standard sizes with the same area, select the size with the smallest difference in width and height from the cross-sectional area of ​​the duct.

[0026] If there are multiple dimensions with the smallest width-to-height difference, the dimension with the largest width value relative to the cross-sectional area of ​​the duct shall be selected as the target dimension.

[0027] In one implementation of this application, generating the minimum bounding rectangle of the wind turbine accessory combination corresponding to the target size specifically includes:

[0028] According to the preset priority order of the fan accessory assembly installation, the composition and connection method of the fan accessory assembly are determined, and the minimum external rectangular bounding box of the fan and the fan accessory assembly is generated; wherein, the preset priority order is that the fire damper takes precedence over the check valve, and the check valve takes precedence over the silencer.

[0029] If the space in the air supply room is insufficient, the fan accessories in the fan accessory assembly are dynamically removed in ascending order of the preset priority.

[0030] In one implementation of this application, the minimum bounding rectangle is spatially mapped and matched with the outline of the computer room space to determine the optimal equipment layout scheme, specifically including:

[0031] Calculate the minimum bounding rectangle of the fan accessory assembly and the aspect ratio of the available space in the air supply room, and evaluate whether symmetrical arrangement is allowed on both sides of the equipment layout path based on the aspect ratio.

[0032] If so, a symmetrical arrangement of two fans will be adopted; otherwise, a single fan will be arranged along the center of the path.

[0033] In one implementation of this application, a three-dimensional model of the air supply system is generated in the building information model based on the matching results, specifically including:

[0034] Instantiate the fan family file at the location determined in the matching results, and generate the connection components between the fan and the duct according to the preset connection rules;

[0035] According to the preset priority order, various valve accessories are inserted into the air supply system to generate a complete air supply system, and attribute parameters that conform to the design specifications are added to all fan accessory components.

[0036] On the other hand, embodiments of this application also provide an automatic generation device for a smoke-proof zone-based air supply system, the device comprising:

[0037] At least one processor;

[0038] And, a memory communicatively connected to the at least one processor;

[0039] The memory stores instructions that can be executed by the at least one processor, which are executed by the at least one processor to enable the at least one processor to perform an automatic generation method for a smoke-proof partition-based air supply system as described above.

[0040] On the other hand, this application also provides a non-volatile computer storage medium storing computer-executable instructions, which, when executed, implement the above-described method for automatically generating an air supply system based on smoke-proof zones.

[0041] This application provides a method, device, and medium for automatically generating an air supply system based on smoke control zones, which has at least the following beneficial effects:

[0042] By dynamically extracting smoke control zone parameters and structural data through a layered acquisition and precise filtering mechanism, and automatically calculating exhaust volume and smoke volume using an empirical coefficient method, and deriving supply and makeup air volume, the system replaces the traditional manual table lookup and trial calculation process, eliminating data gaps in the design chain. Based on a dual air volume matching mechanism, high / low speed conditions are simultaneously verified in the fan sample library to ensure that the selected target fan model meets both supply and makeup air requirements, avoiding specification misjudgments and repeated adjustments in manual selection. The cross-sectional area of ​​the duct is dynamically matched with the standard size library, and a compact fan accessory combination boundary box is generated through difference minimization and aspect ratio optimization strategies. Combined with spatial mapping matching of the machine room outline, the system adaptively selects single / dual machine layout modes to solve the problem of equipment layout in non-standard spaces. During the 3D model generation stage, standard parameters such as duct limit wind speed and minimum component spacing are automatically injected to ensure that the output results of the air supply system meet the mandatory requirements of fire protection design and avoid compliance oversights in manual design. Attached Figure Description

[0043] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0044] Figure 1 A flowchart illustrating an automatic generation method for a smoke-proof zone-based air supply system provided in this application embodiment;

[0045] Figure 2 This is a schematic diagram of the internal structure of an automatic generation device for a smoke-proof zone-based air supply system, provided as an embodiment of this application. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0048] Figure 1 This is a flowchart illustrating an automatic generation method for a smoke-proof zone-based air supply system, provided in an embodiment of this application.

[0049] The analysis method involved in the embodiments of this application can be implemented by a terminal device or a server, and this application does not impose any special limitations on it. For ease of understanding and description, the following embodiments are all described in detail using a server as an example.

[0050] It should be noted that the server can be a single device or a system composed of multiple devices, i.e., a distributed server. This application does not make any specific limitations on this.

[0051] like Figure 1 As shown in the embodiment of this application, an automatic generation method for an air supply system based on smoke control zones is provided, including:

[0052] Step 101: Read the smoke control zone parameters, structural component geometric data, and HVAC equipment data of the area to which the air supply room is responsible in the building information model, and calculate the exhaust volume and smoke exhaust volume based on the smoke control zone area and net height in the smoke control zone parameters.

[0053] A fire compartment refers to a spatial unit within a building, defined by fire-resistant partitions such as walls, floors, and fire-resistant doors and windows with a certain fire resistance rating. Its core function is to effectively limit the horizontal or vertical spread of fire and high-temperature smoke in the event of a fire, thus buying time for evacuation and fire rescue. The fire compartments in this application are pre-drawn plans of the building, serving as a prerequisite for their functional use.

[0054] A smoke control zone is a defined area unit below the ceiling or roof of a building, divided using smoke curtains, partitions, beams, or other components with a certain smoke-collecting height. Its main purpose is to confine high-temperature smoke to the smallest possible area in the early stages of a fire, allowing the smoke exhaust system to remove it more effectively and preventing smoke from spreading to evacuation routes and other areas. The smoke control zones in this application are pre-drawn by HVAC professionals, and subsequent calculations and system generation are based on these smoke control zones.

[0055] An air supply system is a mechanical ventilation system composed of fans, ducts, air outlets, dampers, and control devices. It is responsible for delivering treated (e.g., filtration, heating, cooling, humidification, dehumidification) or untreated outdoor air (fresh air) or indoor return air to designated areas within a building, according to design requirements. Its purpose is to meet indoor air quality, temperature and humidity control, or specific process requirements. The functional result of this application is an air supply system, mainly composed of fans, dampers, ducts, duct fittings, duct accessories, and duct terminals.

[0056] The smoke exhaust system mainly consists of smoke exhaust fans, smoke exhaust ducts, smoke exhaust outlets, smoke control zones, fire dampers, smoke exhaust fire dampers, and control devices. These components work together to ensure effective smoke removal in the event of a fire, thus protecting personnel safety. This application does not provide further details about the smoke exhaust system.

[0057] In this embodiment, the model / data acquisition module is used to read the civil engineering model, structural model, and HVAC model in the Building Information Modeling (BIM). The main objects acquired are components and data. The main components acquired are rooms, building walls, structural slabs, structural beams, and smoke control zones. The data acquisition mainly involves acquiring the data information of existing components in the model, which mainly includes: smoke control zone name, smoke control zone area, building floor height, and structural slab thickness.

[0058] For model and data acquisition, the core strategy mainly adopts the method of "layered acquisition + precise filtering". It mainly uses the Document Object Model (DOM) through the Revit API. First, the target types are defined for the component objects and data rows to be acquired. Architectural elements mainly include "Wall, Room", structural elements mainly include "Structural Framing, Celling", and HVAC elements mainly include "Smokecontrolarea". After acquiring the elements, key parameters and geometric data are extracted from the key data.

[0059] The net height of a smoke control zone needs to be confirmed by the floor height and slab thickness. The floor height and slab thickness can be directly retrieved using the Revit API. The net height needs to be calculated using the formula: Net Height = Floor Height - Slab Thickness. Since the floor height and slab thickness of a smoke control zone are not necessarily fixed values, the calculated net height is not a single result. Therefore, the net height values ​​for smoke control zones have been optimized, and the maximum value from the set of calculated net height values ​​is used as the basis for subsequent calculations.

[0060] In this embodiment, the data calculation module first selects the calculation area based on the user's choice, then uses the specific data obtained from the model / data acquisition module, and combines it with the actual calculation formula to obtain the corresponding calculation results. Based on the obtained smoke control zone name and area, and combined with the user's input values, the system exhaust volume is calculated first. Based on the building floor height and structural slab thickness in the model information, and combined with the results queried from the standard database, the system smoke exhaust volume is obtained. Specifically, selection is based on the net height value, prioritizing the determination of the actual net height value within a given range, and then calculating the specific value using linear interpolation. It should be noted that the standard database in this embodiment represents industry standard information. While refined design employs more detailed calculation formulas, this application primarily relies on extensive research to summarize the experience values ​​of various design institutes, using empirical algorithms to calculate the final result.

[0061] The exhaust volume is calculated primarily based on the obtained net height and area of ​​the smoke control zone. The formula is: Exhaust Volume = Smoke Control Zone Area * Net Height * Air Change Rate. It should be noted that the air change rate is a range defined by national standards for different types of buildings. This function is mainly designed for residential underground parking garages, therefore a fixed value of 4 air changes per hour is given during the calculation.

[0062] Step 102: Calculate the supply air volume and makeup air volume of the air supply room based on the exhaust air volume and smoke exhaust volume, and match the target fan model corresponding to the supply air volume and makeup air volume in the fan sample database.

[0063] In this embodiment, the supply air volume and makeup air volume are calculated based on the values ​​of smoke exhaust volume and exhaust air volume, respectively. The supply air volume is calculated from the calculated exhaust air volume, and the supply air volume = exhaust air volume * 80%. The makeup air volume is calculated from the calculated smoke exhaust volume, and the makeup air volume = smoke exhaust volume * 50%.

[0064] Unlike traditional manual calculation methods or calculations using two-dimensional software, the calculation of supply air volume and makeup air volume in this application basically does not require manual intervention or data input. Users only need to confirm and ensure the accuracy of the calculated data. At the same time, if there are doubts about the calculation results or if there are more experienced algorithm results, they can be manually modified in the above interface. The data can directly support the selection of subsequent fans and various fan supporting facilities.

[0065] Based on the results of the module's calculations and the manufacturer's samples, the program automatically selects a more suitable fan model. In traditional designs, fans, air valves, air ducts, and air duct accessories are designed as a combination, and users do not consider the installation spacing and force them to be arranged. However, the program automatically calculates the room size provided by the building model, compares the weights of the fan, air valve, air duct, and air duct accessory components, and adaptively places the number of components according to the actual size of the room.

[0066] The components of the air supply system are determined and selected based on the supply air volume and make-up air volume, mainly focusing on the selection of fans. The sample is processed, and the data in the sample is organized into an Excel spreadsheet that can be imported and exported.

[0067] The calculation results for the supply air volume and make-up air volume are obtained. "Make-up air volume" is recorded as the air volume at high fan speed, and "supply air volume" is recorded as the air volume at low fan speed. Therefore, for each fan model, different air volumes correspond to different ranges. The supply air volume and make-up air volume are entered into the table in sequence, prioritizing the make-up air volume and only selecting at high speed. The search proceeds from top to bottom, stopping when a value higher than the make-up air volume value is found. The low-speed air volume value for the corresponding position of the same model is checked against the supply air volume value. If both conditions are met, the fan is considered to meet the selection requirements. If the latter is less than the supply air volume value, this type of fan does not meet the selection requirements. The selection continues downwards for "make-up air volume" until the requirements are met.

[0068] The default selection of the air valve is the standard air valve configured for the fan, namely the 70℃ fire damper, which adopts the standard family style. In fact, users can also replace the family according to their own requirements.

[0069] The selection of ducts is not based on material, but rather on duct size. In engineering projects, ducts primarily consist of galvanized steel sheets. Two dimensional considerations are needed for the ducts: one end, with the fan as the midpoint, represents the duct size from the fan into the ventilation shaft, and the other end, from the fan to the air outlet. The duct size from the fan into the ventilation shaft is primarily calculated using airflow rate. The fan selection is already determined by the program; subsequently, based on the actual airflow rate of the selected fan, the maximum operating airflow velocity of the duct is mainly controlled by specifications in the standard database.

[0070] Step 103: Calculate the cross-sectional area of ​​the duct based on the target fan model and standard duct velocity. Select the target size with the highest matching degree from the preset standard duct size library, and generate the minimum bounding rectangle of the fan accessory combination corresponding to the target size.

[0071] In this embodiment, the duct interface dimensions are determined by the ratio of the actual airflow of the fan to the duct's limited airflow velocity. Values ​​greater than the calculated results are matched in a table based on the duct cross-sectional area to obtain the width and height values. The result with the smallest difference is selected. As shown in Table 1, when the calculated duct cross-sectional area is 0.24 square meters, the available data in the table are 0.25, 0.32, 0.4, 0.5, 0.63, 0.79, 1.0, 1.25, and 1.56. The smallest difference, 0.25, is selected. 0.25 may include dimensions of 1000x250, 800x320, 630x400, and 500x500. The duct size with the larger width value is preferred.

[0072] Table 1 Target Size Selection

[0073]

[0074] For the generation of the air supply system, the selection of duct accessories has certain fixed characteristics, such as 70°C fire dampers, check valves, and silencers. The installation principle is that the program defaults to setting 70°C fire dampers, check valves, and silencers as mandatory installation items, but prioritizes the installation items. In this function, the priority order is: fire damper > check valve > silencer. The selection and installation method of duct accessories here needs to be linked with the entity generation module in the air supply room. The program obtains the outline boundary of the room and places all the mandatory installation items. When there is no room, the placement of silencers is canceled, and then the arrangement in the room is carried out using the entity combination module after the silencers are canceled.

[0075] Step 104: Obtain the spatial outline data of the air supply room, perform spatial mapping and matching between the minimum bounding rectangle and the spatial outline of the room, determine the optimal equipment layout scheme, and generate a three-dimensional model of the air supply system in the building information model based on the matching results.

[0076] In this embodiment, after determining the required component results within the air supply room, and considering relevant information such as structural panels, structural quantities, and building walls, the layout in terms of plan and space within the air supply room is considered. During this step, user interaction is added, providing drawing tools. Users are required to draw a dedicated route from the ventilation shaft for placing the fan unit assembly. This route ensures that the subsequent generation of the fans on the plan must be based on this route. If the room size is sufficient, the user-drawn line segment is assumed to be the centerline of a two-fan assembly; otherwise, the user-drawn line segment is assumed to be the centerline of a single-fan assembly.

[0077] Specifically, based on the above steps, the component information of the fan and fan accessory assembly can be obtained. This component information can be pre-combined to form multiple combination methods. At this point, the maximum bounding box of each combination method can be obtained. Here, the minimum combination method is used as the criterion, such as a minimum spacing of 100mm between pipes, a minimum distance of 100mm between the damper and the wall, etc., to obtain the minimum size information of the bounding box for each combination method. The minimum bounding box after the fan accessory assembly is determined as the minimum placement unit.

[0078] Next, the names of rooms containing the keyword "air supply fan room" are obtained, and after determining the room information based on the room name, the internal enclosed area of ​​the room is obtained. There are two scenarios here. The first is that the air supply fan room has a standard outline, i.e., a rectangular outline. In this case, the minimum size information of the minimum size unit can be directly mapped to the enclosed space of the fan room based on the room outline enclosed by the inner walls, determining the type of fan that can be placed in the fan room. The second scenario is that the room provided by the building has a non-standard room outline, requiring priority processing of the room outline. Specifically, the non-standard room outline of the building is obtained first. Multiple standard quadrilaterals that can be formed by the room outline are determined by the convex and concave points of the room outline. Combined with the user-drawn search route, these standard quadrilaterals are filtered to obtain the polygon set on the final search route. The generated result is determined by mapping it to the minimum fan unit combination. If multiple polygons satisfy the minimum fan unit combination, the one with the largest standard frame area is prioritized as the placement area.

[0079] The above are embodiments of the method proposed in this application. Based on the same inventive concept, embodiments of this application also provide an automatic generation device for a smoke-proof zone-based air supply system, the structure of which is as follows: Figure 2 As shown.

[0080] Figure 2 This is a schematic diagram of the internal structure of an automatic generation device for a smoke-proof zone-based air supply system, provided as an embodiment of this application. Figure 2 As shown, the device includes:

[0081] At least one processor;

[0082] And, a memory that is communicatively connected to at least one processor;

[0083] The memory stores instructions that can be executed by at least one processor, and the instructions, when executed by at least one processor, enable at least one processor to:

[0084] Read the smoke control zone parameters, structural component geometric data, and HVAC equipment data of the area under the responsibility of the air supply room in the building information model, and calculate the exhaust volume and smoke exhaust volume based on the smoke control zone area and net height in the smoke control zone parameters;

[0085] Based on the exhaust volume and smoke exhaust volume, calculate the supply air volume and makeup air volume of the air supply room, and match the target fan model corresponding to the supply air volume and makeup air volume in the fan sample database;

[0086] Based on the target fan model and standard duct velocity, calculate the duct cross-sectional area, select the target size with the highest matching degree from the preset standard duct size library, and generate the minimum bounding rectangle bounding box of the fan accessory combination corresponding to the target size.

[0087] The spatial outline data of the air supply room is obtained, and the minimum bounding rectangle is matched with the spatial outline of the room to determine the optimal equipment layout scheme. Based on the matching results, a three-dimensional model of the air supply system is generated in the building information model.

[0088] This application also provides a non-volatile computer storage medium storing computer-executable instructions, which, when executed, can:

[0089] Read the smoke control zone parameters, structural component geometric data, and HVAC equipment data of the area under the responsibility of the air supply room in the building information model, and calculate the exhaust volume and smoke exhaust volume based on the smoke control zone area and net height in the smoke control zone parameters;

[0090] Based on the exhaust volume and smoke exhaust volume, calculate the supply air volume and makeup air volume of the air supply room, and match the target fan model corresponding to the supply air volume and makeup air volume in the fan sample database;

[0091] Based on the target fan model and standard duct velocity, calculate the duct cross-sectional area, select the target size with the highest matching degree from the preset standard duct size library, and generate the minimum bounding rectangle bounding box of the fan accessory combination corresponding to the target size.

[0092] The spatial outline data of the air supply room is obtained, and the minimum bounding rectangle is matched with the spatial outline of the room to determine the optimal equipment layout scheme. Based on the matching results, a three-dimensional model of the air supply system is generated in the building information model.

[0093] The various embodiments in this application are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the device and medium embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the description of the method embodiments.

[0094] The devices and media provided in this application are one-to-one with the methods. Therefore, the devices and media also have similar beneficial technical effects as their corresponding methods. Since the beneficial technical effects of the methods have been described in detail above, the beneficial technical effects of the devices and media will not be repeated here.

[0095] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0096] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0097] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0098] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0099] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0100] Memory may include non-persistent storage in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0101] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0102] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0103] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A method for automatically generating an air supply system based on smoke control zones, characterized in that, The method includes: Read the smoke control zone parameters, structural component geometric data, and HVAC equipment data of the area under the responsibility of the air supply room in the building information model, and calculate the exhaust volume and smoke exhaust volume based on the smoke control zone area and net height of the smoke control zone in the smoke control zone parameters; Based on the exhaust volume and the smoke exhaust volume, calculate the supply air volume and makeup air volume of the air supply room, and match the target fan model corresponding to the supply air volume and the makeup air volume in the fan sample database; Based on the target fan model and standard duct wind speed, calculate the duct cross-sectional area, select the target size with the highest matching degree from the preset standard duct size library, and generate the minimum bounding rectangle bounding box of the fan accessory combination corresponding to the target size. The spatial outline data of the air supply room is obtained, and the minimum bounding rectangle is spatially mapped and matched with the spatial outline of the room to determine the optimal equipment layout scheme. Based on the matching result, a three-dimensional model of the air supply system is generated in the building information model. Based on the exhaust volume and the smoke exhaust volume, the supply air volume and makeup air volume of the air supply room are calculated, and the target fan model corresponding to the supply air volume and makeup air volume is matched in the fan sample database, specifically including: Multiply the exhaust volume by the first preset proportional coefficient to output the supply air volume, and multiply the smoke exhaust volume by the second preset proportional coefficient to output the make-up air volume; The aforementioned air supply volume is used as a screening condition for high-speed operation to conduct preliminary screening in the sample database, and the low-speed operation is verified to meet the air supply volume requirements in the preliminary screening results. When both high-speed and low-speed operating conditions are met, the corresponding fan model is determined as a candidate solution, and the fan model with the smallest size is selected as the target fan model from all candidate solutions. Based on the target fan model and standard duct velocity, the duct cross-sectional area is calculated, and the target size with the highest matching degree to the duct cross-sectional area is selected from a preset standard duct size library. Specifically, this includes: The cross-sectional area of ​​the duct is calculated based on the ratio of the rated air volume to the specified wind speed, and a set of standard sizes larger than the cross-sectional area of ​​the duct is searched in a preset standard duct size library; wherein, the rated air volume is used to represent the air volume of the selected fan corresponding to the target fan model; Determine the size with the smallest difference from the cross-sectional area of ​​the duct from the set of standard sizes. When there are multiple standard sizes with the same area, select the size with the smallest difference in width and height from the cross-sectional area of ​​the duct. If there are multiple dimensions with the smallest width-to-height difference, the dimension with the largest width value relative to the cross-sectional area of ​​the duct shall be selected as the target dimension. Generating the minimum bounding rectangle of the wind turbine accessory assembly corresponding to the target size specifically includes: According to the preset priority order of the fan accessory assembly installation, the composition and connection method of the fan accessory assembly are determined, and the minimum external rectangular bounding box of the fan and the fan accessory assembly is generated; wherein, the preset priority order is that the fire damper takes precedence over the check valve, and the check valve takes precedence over the silencer. If the space in the air supply room is insufficient, the fan accessories in the fan accessory assembly are dynamically removed in order of preset priority from low to high. The minimum bounding rectangle is spatially mapped and matched with the outline of the computer room space to determine the optimal equipment layout scheme, specifically including: Calculate the minimum bounding rectangle of the fan accessory assembly and the aspect ratio of the available space in the air supply room, and evaluate whether symmetrical arrangement is allowed on both sides of the equipment layout path based on the aspect ratio. If so, a symmetrical arrangement of two fans will be adopted; otherwise, a single fan will be arranged along the center of the path.

2. The method for automatically generating an air supply system based on smoke control zones according to claim 1, characterized in that, Read the smoke control zone parameters, structural component geometry data, and HVAC equipment data for the area under the responsibility of the air supply room in the building information model, and based on the smoke control zone area and net height in the smoke control zone parameters, specifically including: Read the civil engineering model, structural model, and HVAC model from the building information model; Identify the physical room of the air supply fan room from the civil engineering model, extract the geometric data of the smoke control zone boundary, and calculate the smoke control zone area of ​​the air supply fan room based on the geometric data of the smoke control zone boundary. Identify the special graphic elements marked as smoke control zones in the HVAC model to read the name identification information of the smoke control zones; Extract the structural slab thickness data and structural beam position data of the air supply room from the structural model, and calculate the net height of the smoke control zone based on the structural slab thickness data and the preset floor height data; wherein, the net height of the smoke control zone is the maximum value in the set of calculation results.

3. The method for automatically generating an air supply system based on smoke control zones according to claim 1, characterized in that, The calculation of exhaust volume and smoke exhaust volume includes: Multiply the area of ​​the smoke control zone by the net height of the smoke control zone to calculate the basic volume value of the smoke control zone in the air supply room, and multiply the basic volume value by the preset air change rate to calculate the exhaust volume. Based on the standard database for the net height of the smoke control zone, the corresponding baseline smoke exhaust volume is determined. When the net height of the smoke control zone is between two baseline intervals, the actual smoke exhaust volume is determined by linear interpolation.

4. The method for automatically generating an air supply system based on smoke control zones according to claim 1, characterized in that, Based on the matching results, a 3D model of the air supply system is generated in the building information model, specifically including: Instantiate the fan family file at the location determined in the matching results, and generate the connection components between the fan and the duct according to the preset connection rules; According to the preset priority order, various valve accessories are inserted into the air supply system to generate a complete air supply system, and attribute parameters that conform to the design specifications are added to all fan accessory components.

5. An automatic generation device for a smoke-proof zone-based air supply system, characterized in that, The device includes: At least one processor; And, a memory communicatively connected to the at least one processor; The memory stores instructions that can be executed by the at least one processor, which are executed by the at least one processor to enable the at least one processor to perform an automatic generation method for a smoke-proof zone-based air supply system as described in any one of claims 1-4.

6. A non-volatile computer storage medium storing computer-executable instructions, characterized in that, When the computer-executable instructions are executed, they implement the automatic generation method of a smoke-proof zone-based air supply system as described in any one of claims 1-4.

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