CN109308383B - BIM-based flue gas simulation method, terminal and storage medium - Google Patents
BIM-based flue gas simulation method, terminal and storage medium Download PDFInfo
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- CN109308383B CN109308383B CN201811032075.2A CN201811032075A CN109308383B CN 109308383 B CN109308383 B CN 109308383B CN 201811032075 A CN201811032075 A CN 201811032075A CN 109308383 B CN109308383 B CN 109308383B
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Abstract
The embodiment of the invention discloses a smoke simulation method, a terminal and a storage medium based on BIM, which are used for acquiring smoke concentration plane distribution of each floor in a selected building BIM model, determining average smoke concentration ratio of each room in an upper limit floor and a lower limit floor in a floor calculation domain by the smoke concentration plane distribution, and if the average smoke concentration ratio of each room in the upper limit floor and the lower limit floor of the floor calculation domain is smaller than a smoke concentration ratio threshold value, adding the average smoke concentration ratio of each room in the floor corresponding to the floor calculation domain into a corresponding room in the building BIM model, and transmitting the building BIM model with the added average smoke concentration ratio to a receiving terminal. The method simplifies the calculation model, improves the smoke simulation efficiency, can quickly determine a reasonable floor calculation domain, and adds the average smoke concentration ratio of the corresponding floor rooms to the corresponding rooms in the building BIM model to be sent to a receiving terminal for display, and is used as a reference for fire rescue.
Description
Technical Field
The invention relates to the technical field of fire smoke diffusion, in particular to a smoke simulation method, a terminal and a storage medium based on BIM.
Background
At present, when a fire disaster occurs in a building, the arrangement of rooms and the diffusion condition of smoke inside the building are generally not clear, so that escape and fire rescue lack of basis, and targeted and accurate rescue cannot be performed. When the firefighter cannot return from the original path and needs to reform the escape path, a scientific basis is lacked.
Meanwhile, flue gas simulation (CFD technology) is complex, the simulation calculated amount is large, and the calculation time is long. However, the fire rescue has high time requirements, needs to be simplified to a certain extent, ensures that simulation results meeting the requirements are obtained quickly, and has guiding significance on site.
Disclosure of Invention
The embodiment of the invention provides a smoke simulation method and a smoke simulation device based on BIM, which aim to solve the problems that fire smoke diffusion simulation of each floor of a building is complex, namely, specific and accurate rescue cannot be performed, and rescue efficiency is low in the prior art.
In a first aspect, an embodiment of the present invention provides a method for simulating smoke based on BIM, including:
acquiring the smoke concentration plane distribution of each floor in the selected building BIM model at the ground height of a preset floor through three-dimensional steady-state simulation;
according to the smoke concentration plane distribution of each floor, acquiring the average smoke concentration of each room in each floor and the average smoke concentration of the firing room;
acquiring the average smoke concentration ratio of each room in the upper limit value floor and the lower limit value floor in the floor calculation domain, wherein the average smoke concentration ratio is obtained by the ratio of the average smoke concentration of the room to the average smoke concentration of the firing room;
judging whether the average smoke concentration ratio of each room in the upper limit value floor and the lower limit value floor of the floor calculation domain is larger than the average smoke concentration ratio of the smoke concentration ratio threshold value or not;
if the average flue gas concentration ratio of the rooms in the upper limit floor and the lower limit floor of the floor calculation domain is smaller than the flue gas concentration ratio threshold, correspondingly adding the average flue gas concentration ratio of each room in the corresponding floor of the floor calculation domain into the corresponding room in the building BIM model to obtain the building BIM model added with the average flue gas concentration ratio;
and sending the building BIM model added with the average smoke concentration ratio to a receiving terminal.
In a second aspect, an embodiment of the present invention provides a terminal, including:
the three-dimensional steady-state simulation unit is used for obtaining the smoke concentration plane distribution of each floor in the selected building BIM model at the preset floor surface height through three-dimensional steady-state simulation;
the average flue gas concentration acquisition unit is used for acquiring the average flue gas concentration of each room in each floor and the average flue gas concentration of the firing room according to the flue gas concentration plane distribution of each floor;
the average smoke concentration ratio acquisition unit is used for acquiring the average smoke concentration ratio of each room in the upper limit value floor and the lower limit value floor in the floor calculation domain, wherein the average smoke concentration ratio is obtained by the ratio of the average smoke concentration of the room to the average smoke concentration of the firing room;
the concentration ratio judging unit is used for judging whether the average smoke concentration ratio of each room in the upper limit value floor and the lower limit value floor of the floor calculation domain is larger than the average smoke concentration ratio of the smoke concentration ratio threshold value or not;
the concentration ratio adding unit is used for adding the average smoke concentration ratio of each room in the floor corresponding to the floor of the floor calculation domain into the corresponding room in the building BIM model to obtain the building BIM model added with the average smoke concentration ratio if the average smoke concentration ratio of the rooms in the upper limit floor and the lower limit floor of the floor calculation domain is smaller than the smoke concentration ratio threshold;
and the model sending unit is used for sending the building BIM model added with the average smoke concentration ratio to the receiving terminal.
In a third aspect, an embodiment of the present invention provides another terminal, including a processor, an input device, an output device, and a memory, where the processor, the input device, the output device, and the memory are connected to each other, and where the memory is configured to store a computer program supporting the terminal to perform the method described above, where the computer program includes program instructions, and where the processor is configured to execute the program instructions to perform the method of the first aspect described above.
In a fourth aspect, embodiments of the present invention provide a computer readable storage medium storing a computer program comprising program instructions which, when executed by a processor, cause the processor to perform the method of the first aspect described above.
The embodiment of the invention discloses a smoke simulation method, a terminal and a storage medium based on BIM, wherein smoke concentration plane distribution of each floor in a selected building BIM model at the preset floor height is obtained through three-dimensional steady-state simulation, the average smoke concentration ratio of each room in an upper limit floor and a lower limit floor in a floor calculation domain is determined according to the smoke concentration plane distribution of each floor, if the average smoke concentration ratio of each room in the upper limit floor and the lower limit floor in the floor calculation domain is smaller than a smoke concentration ratio threshold, or the corresponding floor of the calculation domain reaches the limit of a building natural floor, the average smoke concentration ratio of each room in the corresponding floor of the floor calculation domain is correspondingly added into the corresponding room in the building BIM model, a building BIM model with the average smoke concentration ratio added is obtained, and the building BIM model with the average smoke concentration ratio added is sent to a receiving terminal. The method simplifies the calculation model, improves the efficiency of flue gas simulation, can quickly determine a reasonable floor calculation domain, and adds the average flue gas concentration ratio of the corresponding floor room in the floor calculation domain to the corresponding room in the building BIM model, and sends the average flue gas concentration ratio to the receiving terminal for display so as to be used as a reference basis for fire rescue.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of a BIM-based flue gas simulation method in an embodiment of the invention;
FIG. 2 is a schematic flow chart of a BIM-based smoke simulation method in an embodiment of the invention;
FIG. 3 is a schematic block diagram of a terminal in an embodiment of the invention;
FIG. 4 is a schematic block diagram of a sub-unit of a terminal in an embodiment of the invention;
fig. 5 is a schematic block diagram of a terminal according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
As used in this specification and the appended claims, the term "if" may be interpreted as "when..once" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".
In particular implementations, the terminals described in embodiments of the invention include, but are not limited to, other portable devices such as mobile phones, laptop computers, or tablet computers having a touch-sensitive surface (e.g., a touch screen display and/or a touch pad). It should also be appreciated that in some embodiments, the device is not a portable communication device, but a desktop computer having a touch-sensitive surface (e.g., a touch screen display and/or a touch pad).
In the following discussion, a terminal including a display and a touch sensitive surface is described. However, it should be understood that the terminal may include one or more other physical user interface devices such as a physical keyboard, mouse, and/or joystick.
The terminal supports various applications, such as one or more of the following: drawing applications, presentation applications, word processing applications, website creation applications, disk burning applications, spreadsheet applications, gaming applications, telephony applications, video conferencing applications, email applications, instant messaging applications, workout support applications, photo management applications, digital camera applications, digital video camera applications, web browsing applications, digital music player applications, and/or digital video player applications.
Various applications that may be executed on the terminal may use at least one common physical user interface device such as a touch sensitive surface. One or more functions of the touch-sensitive surface and corresponding information displayed on the terminal may be adjusted and/or changed between applications and/or within the corresponding applications. In this way, the common physical architecture (e.g., touch-sensitive surface) of the terminal may support various applications with user interfaces that are intuitive and transparent to the user.
Referring to fig. 1, fig. 1 is a schematic flow chart of a smoke simulation method based on BIM according to the embodiment of the present invention. As shown in fig. 1, the smoke simulation method based on BIM includes:
s101, obtaining the smoke concentration plane distribution of each floor in the selected building BIM model at the preset floor surface height through three-dimensional steady-state simulation.
S102, acquiring the average smoke concentration of each room in each floor and the average smoke concentration of a firing room according to the smoke concentration plane distribution of each floor;
s103, obtaining an average smoke concentration ratio of each room in the upper limit value floor and the lower limit value floor in the floor calculation domain, wherein the average smoke concentration ratio is obtained by the ratio of the average smoke concentration of the room to the average smoke concentration of the firing room;
s104, judging whether the average smoke concentration ratio of each room in the upper limit floor and the lower limit floor of the floor calculation domain is larger than the average smoke concentration ratio of the smoke concentration ratio threshold value;
s105, if the average flue gas concentration ratio of the rooms in the upper limit floor and the lower limit floor of the floor calculation domain is smaller than the flue gas concentration ratio threshold, correspondingly adding the average flue gas concentration ratio of each room in the corresponding floor of the floor calculation domain into the corresponding room in the building BIM model to obtain the building BIM model with the added average flue gas concentration ratio;
and S106, transmitting the building BIM model added with the average smoke concentration ratio to a receiving terminal.
In this embodiment, cloud CFD (Computational Fluid Dynamics, i.e. computational fluid dynamics) fire smoke diffusion simulation is performed in combination with a building BIM model, and at this time, according to the characteristics of fire escape, it may be assumed that the room, the front room and the stairwell door are all in an open state, the window is opened according to the conditions according to the proportion or related data, and related mechanical ventilation is all in a working state.
Wherein the English full name of BIM is Building Information Modeling, which represents a building informatization model, is a complete information model, and can integrate engineering information, processes and resources of engineering projects at different stages in a full life cycle into one model, so that the engineering project is conveniently used by all engineering participants
And then, the smoke concentration plane distribution of each floor in the selected building BIM model at 1.5 meters is obtained through three-dimensional steady-state simulation in computational fluid dynamics, so that the fire smoke diffusion simulation time can be reduced, and the result judgment is not influenced in total.
In one embodiment, as shown in fig. 1, step S106 further includes:
s107, if the average smoke concentration ratio of the rooms in the upper limit floor of the floor calculation domain is larger than the smoke concentration ratio threshold and the upper limit floor does not reach the natural upper limit floor of the building, adding one to the upper limit floor of the floor calculation domain as the updated floor calculation domain, and returning to execute the step of judging whether the average smoke concentration ratio of the rooms in the upper limit floor and the lower limit floor of the floor calculation domain is larger than the average smoke concentration ratio of the smoke concentration ratio threshold;
s108, if the average smoke concentration ratio of the rooms in the lower limit floor of the floor calculation domain is larger than the smoke concentration ratio threshold and the lower limit floor does not reach the natural lower limit floor of the building, the lower limit floor of the floor calculation domain is lowered one to serve as the updated floor calculation domain, and the step of judging whether the average smoke concentration ratio of the rooms in the upper limit floor and the lower limit floor of the floor calculation domain is larger than the average smoke concentration ratio of the smoke concentration ratio threshold is executed.
In this embodiment, if the average smoke concentration ratio of the rooms in the upper limit floor or the lower limit floor of the floor calculation domain is greater than the average smoke concentration ratio of the smoke concentration ratio threshold, the simulation of the smoke diffusion is required to be performed on the upward or downward expansion floor until the average smoke concentration ratio of each room reaching a certain floor is less than the smoke concentration ratio threshold, which is the expansion of the stop floor, and the more reasonable floor calculation domain can be determined through the dynamic adjustment of the floor calculation domain.
The precondition that the upper limit value and the lower limit value of the floor calculation domain can be adjusted is that the upper limit value of the current floor calculation domain does not reach the natural upper limit floor of the building or that the lower limit value of the current floor calculation domain does not reach the natural lower limit floor of the building.
Once the upper limit value of the current floor calculation domain reaches the natural upper limit floor of the building, the upper limit floor of the floor calculation domain is not added by one to be used as the updated floor calculation domain even if the average smoke concentration ratio of the existing rooms in the upper limit floor of the floor calculation domain is larger than the smoke concentration ratio threshold value, and the natural upper limit floor of the building is used as the upper limit value of the current floor calculation domain.
Once the lower limit value of the current floor calculation region reaches the natural lower limit floor of the building, even if the average smoke concentration ratio of the existing rooms in the lower limit floor of the floor calculation region is larger than the smoke concentration ratio threshold value, the lower limit floor of the floor calculation region is not lowered by one step to serve as the updated floor calculation region, and the natural lower limit floor of the building is kept to serve as the lower limit value of the current floor calculation region.
In order to reduce the calculation amount of the average smoke concentration ratio, the average smoke concentration ratio of each room in each floor in the floor calculation domain is generally calculated according to the floor corresponding to the preset floor calculation domain. Typically, the floor calculation field is set to [ -2,6], i.e. the average smoke concentration ratio of each room in 9 floors L-2, L-1, L, L +1, l+2, l+3, l+4, l+5, l+6, where L represents the floor where the firing room is located. It should be noted that: the calculated domain cannot exceed natural floors (such as a natural upper limit floor corresponding to a topmost building and a natural lower limit floor corresponding to a bottommost building), for example, a 7-story building without a basement, and when a fire disaster occurs in the 3 rd story (namely, l=3), the calculated domain is at most one story to seven stories, namely [ -2,4], and corresponds to the 1 st story to the 7 th story respectively.
And then judging whether the average smoke concentration ratio of each room in the upper limit floor and the lower limit floor of the floor calculation domain is larger than the average smoke concentration ratio of the smoke concentration ratio threshold (for example, the smoke concentration ratio threshold is set to be 0.1), and if the average smoke concentration ratio of each room in the upper limit floor and the lower limit floor of the floor calculation domain is smaller than the smoke concentration ratio threshold, simulating the smoke diffusion is not required to be performed on the upward or downward expansion floor, namely, the smoke on the upward or downward expansion floor is negligible. If the average smoke concentration ratio of the rooms in the upper limit floor or the lower limit floor of the floor calculation domain is larger than the average smoke concentration ratio of the smoke concentration ratio threshold, the simulation of the smoke diffusion is required to be performed on the upward or downward expansion floor until the average smoke concentration ratio of each room reaching a certain floor is smaller than the smoke concentration ratio threshold, and the expansion of the floor is stopped.
After a reasonable floor calculation domain is determined, correspondingly adding the average smoke concentration ratio of each room in the floor corresponding to the floor calculation domain into the corresponding room in the building BIM model to obtain the building BIM model added with the average smoke concentration ratio; and sending the building BIM model added with the average smoke concentration ratio to a receiving terminal as a reference basis for fire rescue, and enabling firefighters to reasonably arrange the priority order of rescue rooms.
In one embodiment, the step S103 includes:
by passing through
Obtaining the average flue gas concentration ratio of each room; wherein->
A 0 Area of the firing room, A i，j Area, k, of the ith and jth rooms i,j The average smoke concentration ratio of the ith layer and the jth room is shown.
In the present embodiment, the average smoke concentration of the room is obtained by integrating operation
Average concentration of flue gas in a fire room>
Then is further filled with->
To obtain the average smoke concentration ratio k i,j . Through the integral operation, the average smoke concentration ratio of each room of each floor can be accurately judged, and the parameter is used as a reference parameter for judging whether the current room has too high smoke concentration and needs to be subjected to preferential rescue.
Wherein, ρdA is ≡ i,j ＝∫∫ρdx dy；
i layer, area of j room: a is that i,j ＝∫∫dx dy；
Similarly, the average concentration of smoke in the firing room is:
in one embodiment, as shown in fig. 2, the step S105 includes:
s1051, acquiring a BIM plane layout diagram of each room in a building BIM model;
s1052, adding the average flue gas concentration ratio of each room in the corresponding floor of the floor calculation domain to the BIM floor plan of the corresponding room.
In this embodiment, by adding the average smoke concentration ratio of each room to the BIM floor plan of the corresponding room, the fire-fighting and rescue personnel can visually inspect the room with the higher average smoke concentration, and take the room with the higher average smoke concentration as the room for preferential rescue.
The method simplifies the calculation model, improves the efficiency of flue gas simulation, can quickly determine a reasonable floor calculation domain, and adds the average flue gas concentration ratio of the corresponding floor room in the floor calculation domain to the corresponding room in the building BIM model, and sends the average flue gas concentration ratio to the receiving terminal for display so as to be used as a reference basis for fire rescue.
The embodiment of the invention also provides a terminal. Specifically, referring to fig. 3, a schematic block diagram of a terminal provided in an embodiment of the present invention is shown. The terminal 100 of the present embodiment includes: the device comprises a three-dimensional steady-state simulation unit 101, an average smoke concentration acquisition unit 102, an average smoke concentration ratio acquisition unit 103, a concentration ratio judgment unit 104, a concentration ratio addition unit 105 and a model sending unit 106.
The three-dimensional steady-state simulation unit 101 is used for obtaining the smoke concentration plane distribution of each floor in the selected building BIM model at the preset floor surface height through three-dimensional steady-state simulation;
an average smoke concentration obtaining unit 102, configured to obtain an average smoke concentration of each room in each floor and an average smoke concentration of a firing room according to a smoke concentration plane distribution of each floor;
an average smoke concentration ratio obtaining unit 103, configured to obtain an average smoke concentration ratio obtained by a ratio of an average smoke concentration of a room to an average smoke concentration of a firing room in each of the upper limit floor and the lower limit floor in the floor calculation domain;
a concentration ratio judging unit 104, configured to judge whether an average smoke concentration ratio of each room in the upper limit floor and the lower limit floor of the floor calculation domain is greater than an average smoke concentration ratio of a smoke concentration ratio threshold;
a concentration ratio adding unit 105, configured to, if the average flue gas concentration ratios of the rooms in the upper limit floor and the lower limit floor of the floor calculation domain are both smaller than the flue gas concentration ratio threshold, add the average flue gas concentration ratio of each room in the floor corresponding to the floor calculation domain to the corresponding room in the building BIM model, and obtain a building BIM model to which the average flue gas concentration ratio is added;
and a model transmitting unit 106 for transmitting the building BIM model to which the average smoke concentration ratio has been added to the receiving terminal.
The three-dimensional steady-state simulation unit 101 is specifically configured to obtain, through three-dimensional steady-state simulation, a flue gas concentration plane distribution of a height of 1.5m of a room in each floor of the selected building BIM model.
In one embodiment, as shown in fig. 3, the terminal 100 further includes:
an upper limit floor determination unit 107, configured to, if the average smoke concentration ratio of the rooms in the upper limit floor of the floor calculation domain is greater than the smoke concentration ratio threshold and the upper limit floor does not reach the natural upper limit floor of the building, add one to the upper limit floor of the floor calculation domain as the updated floor calculation domain, and return to executing the step of determining whether the average smoke concentration ratio of the rooms in the upper limit floor and the lower limit floor of the floor calculation domain is greater than the average smoke concentration ratio of the smoke concentration ratio threshold;
and a lower limit floor determination unit 108, configured to, if the average smoke concentration ratio of the rooms in the lower limit floor of the floor calculation domain is greater than the smoke concentration ratio threshold and the lower limit floor does not reach the natural lower limit floor of the building, drop the lower limit floor of the floor calculation domain one time as the updated floor calculation domain, and return to executing the step of determining whether the average smoke concentration ratio of the rooms in the upper limit floor and the lower limit floor of the floor calculation domain is greater than the average smoke concentration ratio of the smoke concentration ratio threshold.
Wherein by means of
Obtaining the average flue gas concentration ratio of each room; wherein->
A 0 Area of the firing room, A i，j Area, k, of the ith and jth rooms i,j The average smoke concentration ratio of the ith layer and the jth room is shown. />
In one embodiment, as shown in fig. 4, the density ratio adding unit 105 includes:
a BIM floor plan acquiring unit 1051 for acquiring a BIM floor plan of each room in the building BIM model;
a data adding unit 1052, configured to add the average flue gas concentration ratio of each room in the corresponding floor of the floor calculation domain to the BIM floor plan of the corresponding room.
Referring to fig. 5, another schematic block diagram of a terminal according to an embodiment of the present invention is provided. The terminal in the present embodiment as shown in fig. 5 may include: one or more processors 1601; one or more input devices 1602, one or more output devices 1603, and a memory 1604. The processor 1601, the input device 1602, the output device 1603, and the memory 1604 are connected by a bus 1605. The memory 1602 is for storing a computer program comprising program instructions, and the processor 1601 is for executing the program instructions stored by the memory 1602. Wherein the processor 1601 is configured to execute the program instructions to perform a BIM-based flue gas simulation method according to an embodiment of the present invention.
It should be appreciated that in embodiments of the present invention, the processor 1601 may be a central processing unit (Central Processing Unit, CPU), which may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The input device 1602 may include a touch pad, a fingerprint sensor (for collecting fingerprint information of a user and direction information of a fingerprint), a microphone, etc., and the output device 1603 may include a display (LCD, etc.), a speaker, etc.
The memory 1604 may include read only memory and random access memory, and provides instructions and data to the processor 1601. A portion of memory 1604 may also include non-volatile random access memory. For example, the memory 1604 may also store information of a device type.
In a specific implementation, the processor 1601, the input device 1602 and the output device 1603 described in the embodiments of the present invention may execute the implementation described in the BIM-based flue gas simulation method of the present invention, and may also execute the implementation of the terminal described in the embodiments of the present invention, which is not described herein again.
In another embodiment of the present invention, a computer readable storage medium is provided, where the computer readable storage medium stores a computer program, where the computer program includes program instructions, where the program instructions when executed by a processor implement a BIM-based flue gas simulation method in an embodiment of the present invention.
The computer readable storage medium may be an internal storage unit of the terminal according to any of the foregoing embodiments, for example, a hard disk or a memory of the terminal. The computer readable storage medium may also be an external storage device of the terminal, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the terminal. Further, the computer-readable storage medium may also include both an internal storage unit and an external storage device of the terminal. The computer-readable storage medium is used to store the computer program and other programs and data required by the terminal. The computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps described in connection with the embodiments disclosed herein may be embodied in electronic hardware, in computer software, or in a combination of the two, and that the elements and steps of the examples have been generally described in terms of function in the foregoing description to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working procedures of the terminal and the unit described above may refer to the corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In several embodiments provided in the present application, it should be understood that the disclosed terminal and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices, or elements, or may be an electrical, mechanical, or other form of connection.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiment of the present invention.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention is essentially or a part contributing to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (10)
1. A BIM-based flue gas simulation method, comprising:
acquiring the smoke concentration plane distribution of each floor in the selected building BIM model at the ground height of a preset floor through three-dimensional steady-state simulation;
according to the smoke concentration plane distribution of each floor, acquiring the average smoke concentration of each room in each floor and the average smoke concentration of the firing room;
acquiring the average smoke concentration ratio of each room in the upper limit value floor and the lower limit value floor in the floor calculation domain, wherein the average smoke concentration ratio is obtained by the ratio of the average smoke concentration of the room to the average smoke concentration of the firing room;
judging whether the average smoke concentration ratio of each room in the upper limit value floor and the lower limit value floor of the floor calculation domain is larger than the average smoke concentration ratio of the smoke concentration ratio threshold value or not;
if the average flue gas concentration ratio of the rooms in the upper limit floor and the lower limit floor of the floor calculation domain is smaller than the flue gas concentration ratio threshold, correspondingly adding the average flue gas concentration ratio of each room in the corresponding floor of the floor calculation domain into the corresponding room in the building BIM model to obtain the building BIM model added with the average flue gas concentration ratio;
and sending the building BIM model added with the average smoke concentration ratio to a receiving terminal.
2. The BIM-based flue gas simulation method according to claim 1, wherein after determining whether the average flue gas concentration ratio of each room in the upper limit floor and the lower limit floor of the floor calculation domain is greater than the average flue gas concentration ratio of the flue gas concentration ratio threshold, further comprising:
if the average smoke concentration ratio of the rooms in the upper limit floor of the floor calculation domain is larger than the smoke concentration ratio threshold and the upper limit floor does not reach the natural upper limit floor of the building, adding one to the upper limit floor of the floor calculation domain as the updated floor calculation domain, and returning to execute the step of judging whether the average smoke concentration ratio of the rooms in the upper limit floor and the lower limit floor of the floor calculation domain is larger than the average smoke concentration ratio of the smoke concentration ratio threshold;
if the average smoke concentration ratio of the rooms in the lower limit floor of the floor calculation domain is larger than the smoke concentration ratio threshold and the lower limit floor does not reach the natural lower limit floor of the building, the lower limit floor of the floor calculation domain is lowered one time to serve as the updated floor calculation domain, and the step of judging whether the average smoke concentration ratio of each room in the upper limit floor and the lower limit floor of the floor calculation domain is larger than the average smoke concentration ratio of the smoke concentration ratio threshold is executed.
3. The BIM-based flue gas simulation method according to claim 1, wherein the obtaining the flue gas concentration plane distribution of each floor in the selected building BIM model at the preset floor level through three-dimensional steady state simulation includes:
and obtaining the smoke concentration plane distribution of the height of 1.5m of the room in each floor in the selected building BIM model through three-dimensional steady-state simulation.
4. The BIM-based flue gas simulation method according to claim 1, wherein the obtaining the average flue gas concentration ratio of each room in the floor calculation domain of the upper limit value floor and the lower limit value floor, which is obtained from the ratio of the average flue gas concentration of the room to the average flue gas concentration of the firing room, includes:
by passing through
=
Obtaining the average flue gas concentration ratio of each room; wherein the method comprises the steps of
= 
，
=
，
For the area of the room that is to be lit,
for the area of the ith and jth rooms,
the average smoke concentration ratio of the ith layer and the jth room is represented, and ρ is the smoke concentration.
5. The BIM-based flue gas simulation method according to claim 4, wherein the adding the average flue gas concentration ratio of each room in the corresponding floor of the floor calculation domain to the corresponding room in the building BIM model includes:
acquiring a BIM plane layout diagram of each room in the building BIM model;
the average smoke concentration ratio of each room in the corresponding floor of the floor calculation domain is correspondingly added to the BIM floor plan of the corresponding room.
6. A terminal, comprising:
the three-dimensional steady-state simulation unit is used for obtaining the smoke concentration plane distribution of each floor in the selected building BIM model at the preset floor surface height through three-dimensional steady-state simulation;
the average flue gas concentration acquisition unit is used for acquiring the average flue gas concentration of each room in each floor and the average flue gas concentration of the firing room according to the flue gas concentration plane distribution of each floor;
the average smoke concentration ratio acquisition unit is used for acquiring the average smoke concentration ratio of each room in the upper limit value floor and the lower limit value floor in the floor calculation domain, wherein the average smoke concentration ratio is obtained by the ratio of the average smoke concentration of the room to the average smoke concentration of the firing room;
the concentration ratio judging unit is used for judging whether the average smoke concentration ratio of each room in the upper limit value floor and the lower limit value floor of the floor calculation domain is larger than the average smoke concentration ratio of the smoke concentration ratio threshold value or not;
the concentration ratio adding unit is used for adding the average smoke concentration ratio of each room in the floor corresponding to the floor of the floor calculation domain into the corresponding room in the building BIM model to obtain the building BIM model added with the average smoke concentration ratio if the average smoke concentration ratio of the rooms in the upper limit floor and the lower limit floor of the floor calculation domain is smaller than the smoke concentration ratio threshold;
and the model sending unit is used for sending the building BIM model added with the average smoke concentration ratio to the receiving terminal.
7. The terminal of claim 6, further comprising:
an upper limit floor judgment unit, configured to, if the average smoke concentration ratio of the rooms in the upper limit floor of the floor calculation domain is greater than the smoke concentration ratio threshold and the upper limit floor does not reach the natural upper limit floor of the building, add one to the upper limit floor of the floor calculation domain as the updated floor calculation domain, and return to the starting concentration ratio judgment unit;
and the lower limit floor judgment unit is used for descending the lower limit floor of the floor calculation domain by one to serve as the updated floor calculation domain and returning to the starting concentration ratio judgment unit if the average smoke concentration ratio of the rooms in the lower limit floor of the floor calculation domain is larger than the smoke concentration ratio threshold value and the lower limit floor does not reach the natural lower limit floor of the building.
8. A terminal according to claim 6, wherein the average flue gas concentration ratio obtaining unit comprises:
by passing through
=
Obtaining the average flue gas concentration ratio of each room; wherein the method comprises the steps of
= 
，
=
，
For the area of the room that is to be lit,
for the area of the ith and jth rooms,
the average smoke concentration ratio of the ith layer and the jth room is represented, and ρ is the smoke concentration.
9. A terminal comprising a processor, an input device, an output device and a memory, the processor, the input device, the output device and the memory being interconnected, wherein the memory is configured to store a computer program comprising program instructions, the processor being configured to execute the program instructions to perform the BIM-based flue gas simulation method according to any one of claims 1 to 5.
10. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program comprising program instructions which, when executed by a processor, cause the processor to perform the BIM based flue gas simulation method according to any one of claims 1 to 5.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010003248A (en) * | 2008-06-23 | 2010-01-07 | Yazaki Corp | Fire alarm |
| CN102819620A (en) * | 2011-06-10 | 2012-12-12 | 上海市电力公司 | Device for conducting machine room computational fluid dynamics (CFD) simulation through building information model (BIM) |
| CN104298802A (en) * | 2014-07-02 | 2015-01-21 | 哈尔滨工业大学 | Evaluation method of high-rise housing stair evacuation effect |
| CN204204328U (en) * | 2014-11-26 | 2015-03-11 | 公安消防部队昆明指挥学校 | Interior of building fire smoke simulated flowing apparatus |
| CN107067629A (en) * | 2017-06-09 | 2017-08-18 | 成都智建新业建筑设计咨询有限公司 | Safety monitoring system in building based on BIM technology |
| KR101890709B1 (en) * | 2017-12-14 | 2018-08-23 | 한국건설기술연구원 | System and method for evacuating of disaster considering evacuation capacity |
-
2018
- 2018-09-05 CN CN201811032075.2A patent/CN109308383B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010003248A (en) * | 2008-06-23 | 2010-01-07 | Yazaki Corp | Fire alarm |
| CN102819620A (en) * | 2011-06-10 | 2012-12-12 | 上海市电力公司 | Device for conducting machine room computational fluid dynamics (CFD) simulation through building information model (BIM) |
| CN104298802A (en) * | 2014-07-02 | 2015-01-21 | 哈尔滨工业大学 | Evaluation method of high-rise housing stair evacuation effect |
| CN204204328U (en) * | 2014-11-26 | 2015-03-11 | 公安消防部队昆明指挥学校 | Interior of building fire smoke simulated flowing apparatus |
| CN107067629A (en) * | 2017-06-09 | 2017-08-18 | 成都智建新业建筑设计咨询有限公司 | Safety monitoring system in building based on BIM technology |
| KR101890709B1 (en) * | 2017-12-14 | 2018-08-23 | 한국건설기술연구원 | System and method for evacuating of disaster considering evacuation capacity |
Non-Patent Citations (1)
| Title |
|---|
| 基于BIM和FEMAP-58的建筑地震次生火灾模拟;许镇等;《消防科学与技术》;20180615(第06期);全文 * |
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