CN114622744B - Automatic distinguishing method for smoke prevention measures of heating and ventilation professional stairwell and front room - Google Patents
Automatic distinguishing method for smoke prevention measures of heating and ventilation professional stairwell and front room Download PDFInfo
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- CN114622744B CN114622744B CN202210040457.XA CN202210040457A CN114622744B CN 114622744 B CN114622744 B CN 114622744B CN 202210040457 A CN202210040457 A CN 202210040457A CN 114622744 B CN114622744 B CN 114622744B
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- 239000000779 smoke Substances 0.000 title claims abstract description 39
- 230000002265 prevention Effects 0.000 title claims abstract description 35
- 238000009423 ventilation Methods 0.000 title claims abstract description 35
- 238000010438 heat treatment Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000005516 engineering process Methods 0.000 claims abstract description 6
- 238000004458 analytical method Methods 0.000 claims abstract description 4
- 238000004364 calculation method Methods 0.000 claims description 14
- 238000010276 construction Methods 0.000 claims description 13
- 238000013461 design Methods 0.000 claims description 10
- 210000002159 anterior chamber Anatomy 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 238000013507 mapping Methods 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 238000012850 discrimination method Methods 0.000 claims 2
- 238000013473 artificial intelligence Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H1/00—Buildings or groups of buildings for dwelling or office purposes; General layout, e.g. modular co-ordination or staggered storeys
- E04H1/005—Modulation co-ordination
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Air Conditioning Control Device (AREA)
- Building Environments (AREA)
- Ventilation (AREA)
Abstract
The invention discloses an automatic judging method of smoke prevention measures of a heating and ventilation professional stairwell and a front room, which comprises the following steps: carrying out CAD analysis on the building plane base map of an item to obtain a graphic element, and identifying various components and various segmented spaces; acquiring each object of a standard layer; establishing a relationship between the stairwell and the antechamber and the doors and windows belonging to the space; the stairwell and the antechamber are communicated by whether the stairwell and the antechamber share the same affiliated door object. According to the invention, the smoke prevention measures are calculated without manual drawing and by using semi-automatic calculation software, the smoke prevention measures and the pressurized air quantity are automatically calculated by adopting an artificial intelligence technology, and important data information support is provided for the subsequent automatic heating ventilation smoke prevention plane drawing.
Description
Technical Field
The invention relates to the field of building design and construction, in particular to an automatic judging method of smoke prevention measures of a heating and ventilation professional stairwell and a front room.
Background
CAD construction drawing is a drawing showing the overall layout of engineering projects, the external shape, internal arrangement, structural construction, internal and external decoration, material construction, equipment, construction, etc. of a building by AutoCAD software. In the heating and ventilation construction drawing, a plan view generally macroscopically describes the geographic position and main structure of a building, and desalinates walls, doors, windows, beams and columns and the like, but mainly highlights the arrangement of ventilation pipelines and the placement condition of equipment.
In the existing building design construction field, the CAD drawing is mainly drawn by a heating and ventilation designer with years of working experience according to national heating and ventilation construction specifications and customer requirements by utilizing the existing auxiliary calculation plug-ins to combine with the building professional drawing to perform semi-automatic calculation, and the designer is required to comprehensively calculate a plurality of layers of drawings to judge the result. However, there are a number of problems associated with the manual judgment of the form of smoke protection measures by the designer:
1. the design period is long, and the change in the construction process cannot be responded quickly and timely. Because different spaces are regulated by national regulations to have requirements on smoke prevention measures, a designer needs to constantly inquire the national regulations during manual drawing, and the external window area judgment and the joint judgment of the mutually communicated stairwells and forerooms are carried out on the spaces where smoke prevention is arranged.
2. The manual design can cause the calculation error problem, and in the data transmission process that the designer manually adopts the manual input to calculation software again to calculate, the calculation error of smoke prevention measure and pressurized air quantity can appear, brings the adverse effect to the use after follow-up construction is accomplished.
3. The judgment of smoke prevention measures usually requires a heating and ventilation design engineer with rich experience, and accumulated industry knowledge is required as a basic condition of drawing, thereby leading to higher manual design cost
Disclosure of Invention
Aiming at the problems, the invention provides an automatic judging method for smoke prevention measures of a heating and ventilation professional stairwell and a front room.
In order to solve the technical problems, the invention is realized by the following technical scheme: the invention provides an automatic judging method of smoke prevention measures of a heating and ventilation professional stairwell and a front room, which comprises the following steps:
s1, carrying out CAD analysis on a building plane base map of an item to obtain a graphic element, and identifying various components and various segmented spaces;
s2, acquiring each object of the standard layer;
s3, establishing a relation between the stairwell and the front chamber and the door and window belonging to the space;
s4, establishing a communication relation between the stairwell and the front room through whether the stairwell and the front room share the same affiliated door object;
s5, acquiring a concave corridor or an open balcony space, judging whether the stairway is communicated with the concave corridor or the open balcony through the step S3 and the step S4, if so, the stairway does not need a smoke protection system, and recording that the attribute of the stairway is None;
s6, if the relevant space is not obtained in the step S5, obtaining a window belonging to the stairwell through the step S3, obtaining whether the window is an external window attribute, if the window is the external window, adding external window area calculation, calculating the sum of all external window areas of the stairwell in 1-5 layers through shaft network mapping, if the window is greater than 2m 2, adopting natural ventilation, recording the attribute as False, otherwise, needing to mechanically pressurize, and recording the attribute as True;
s7, for the front chamber and the shared front chamber, firstly judging whether the front chamber is an open front chamber, namely whether a railing exists in the space or not, if yes, the front chamber and a communicated stair room are not used as smoke prevention measures, and the attributes of the front chamber and the communicated stair room are recorded as None;
s8, if not, the window determined in the step S3 is used, the sum of the areas of the outer windows is calculated, if the sum of the areas of the front outer windows is larger than 2m 2, natural ventilation is carried out when the sum of the areas of the front outer windows is larger than 3m 2, the natural ventilation is recorded as an attribute False, otherwise, mechanical pressurization is needed, and the natural ventilation is recorded as True;
s9, if the front chamber needs to be mechanically pressurized in the step S8, removing the door communicated with the stairwell in the door to which the front chamber belongs in the step S4, screening the door opened to the front chamber, acquiring a wind shaft space, prolonging the door line opened to the door of the front chamber, judging whether the door line is intersected with the wind shaft space, and if the door line is not intersected with the wind shaft space, mechanically pressurizing the stairwell communicated with the front chamber, otherwise, not needed;
s10, after the 9 steps are judged to be finished, the pressurizing air quantity is calculated for the space of the stairwell or the front room which needs to be mechanically pressurized, and the pressurizing air quantity of the stairwell is calculated firstly;
s11, the pressurizing air supply quantity of the front chamber is calculated by referring to a formula of 'building smoke prevention and exhaust system design standard';
and S12, judging and calculating the air quantity for subsequent heating and ventilation construction drawing pictures by completing project smoke prevention measures.
Preferably, the identification of the various components and the segmented various spaces in the step S1 is specifically implemented by combining an AI technology and an image algorithm.
Preferably, the object for obtaining the standard layer in step S2 specifically includes:
anterior chamber space and objects that share the anterior chamber;
one to five storey stairwell objects;
and vertical hinged door and ordinary window objects.
Preferably, in the step S3, the door and the space are determined to belong to the relationship by using intersection of a direction line of the door and a space contour; the window and space are judged by the intersection of bbox of the out-expanded window with the spatial profile.
Preferably, the calculation formula in step S10 is as follows:
Lj＝L1+L2；
L1＝AkνN1；
preferably, the calculation formula in step S11 is as follows:
Ls＝L1+L3；
L1＝AkνN1；
L3＝0.083×AfN3。
from the above description of the invention, it is clear that the invention has the following advantages over the prior art:
the automatic judging method for the smoke prevention measures of the heating and ventilation professional stairwell and the front room does not need manpower to look at a picture and utilizes semi-automatic calculation software to calculate the smoke prevention measures, adopts the artificial intelligence technology to automatically calculate the smoke prevention measures and the pressurized air quantity, and provides important data information support for the subsequent automatic heating and ventilation smoke prevention plane drawing.
Drawings
FIG. 1 is a flow chart of the steps of the present invention;
fig. 2 is a diagram showing an effective discrimination example of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1-2, the present invention provides an automatic discriminating method of smoke prevention measures for a heating and ventilation specialty stairwell and a front room, the method comprising the steps of:
s1, carrying out CAD analysis on a building plane base map of an item to obtain a graphic element, and identifying various components and various segmented spaces;
s2, acquiring each object of the standard layer;
s3, establishing a relation between the stairwell and the front chamber and the door and window belonging to the space;
s4, establishing a communication relation between the stairwell and the front room through whether the stairwell and the front room share the same affiliated door object;
s5, acquiring a concave corridor or an open balcony space, judging whether the stairway is communicated with the concave corridor or the open balcony through the step S3 and the step S4, if so, the stairway does not need a smoke protection system, and recording that the attribute of the stairway is None;
s6, if the relevant space is not obtained in the step S5, obtaining a window belonging to the stairwell through the step S3, obtaining whether the window is an external window attribute, if the window is the external window, adding external window area calculation, calculating the sum of all external window areas of the stairwell in 1-5 layers through shaft network mapping, if the window is greater than 2m 2, adopting natural ventilation, recording the attribute as False, otherwise, needing to mechanically pressurize, and recording the attribute as True;
s7, for the front chamber and the shared front chamber, firstly judging whether the front chamber is an open front chamber, namely whether a railing exists in the space or not, if yes, the front chamber and a communicated stair room are not used as smoke prevention measures, and the attributes of the front chamber and the communicated stair room are recorded as None;
s8, if not, the window determined in the step S3 is used, the sum of the areas of the outer windows is calculated, if the sum of the areas of the front outer windows is larger than 2m 2, natural ventilation is carried out when the sum of the areas of the front outer windows is larger than 3m 2, the natural ventilation is recorded as an attribute False, otherwise, mechanical pressurization is needed, and the natural ventilation is recorded as True;
s9, if the front chamber needs to be mechanically pressurized in the step S8, removing the door communicated with the stairwell in the door to which the front chamber belongs in the step S4, screening the door opened to the front chamber, acquiring a wind shaft space, prolonging the door line opened to the door of the front chamber, judging whether the door line is intersected with the wind shaft space, and if the door line is not intersected with the wind shaft space, mechanically pressurizing the stairwell communicated with the front chamber, otherwise, not needed;
s10, after the 9 steps are judged to be finished, the pressurizing air quantity is calculated for the space of the stairwell or the front room which needs to be mechanically pressurized, and the pressurizing air quantity of the stairwell is calculated firstly;
s11, the pressurizing air supply quantity of the front chamber is calculated by referring to a formula of 'building smoke prevention and exhaust system design standard';
and S12, judging and calculating the air quantity for subsequent heating and ventilation construction drawing pictures by completing project smoke prevention measures.
The identification of the various components and the segmented various spaces in the step S1 is specifically realized by combining an AI technology and an image algorithm.
The object for obtaining the standard layer in step S2 specifically includes:
anterior chamber space and objects that share the anterior chamber;
one to five storey stairwell objects;
and vertical hinged door and ordinary window objects.
Wherein the door and the space in step S3 are determined to belong to the relationship by intersecting the space profile using the direction line of the door; the window and the space are judged by intersecting the bbox of the outer expansion window with the space contour;
wherein, the calculation formula in step S10 is as follows:
Lj＝L1+L2；
L1＝AkνN1；
the parameters can be obtained from the AI graph recognition result, and the calculation formula refers to the building smoke prevention and exhaust system design standard.
Wherein, the calculation formula in step S11 is as follows:
Ls＝L1+L3；
L1＝AkνN1；
L3＝0.083×AfN3。
the invention provides an automatic judging method of smoke prevention measures of a heating and ventilation professional stairwell and a front room, which does not need manpower to look at a picture and utilizes semi-automatic calculation software to calculate the smoke prevention measures, adopts an artificial intelligence technology to automatically calculate the smoke prevention measures and the pressurized air quantity, and provides important data information support for subsequent automatic heating and ventilation smoke prevention plane diagrams.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (3)
1. An automatic discriminating method for smoke prevention measures of a heating and ventilation professional stairwell and a front room is characterized by comprising the following steps:
s1, carrying out CAD analysis on a building plane base map of an item to obtain a graphic element, and identifying various components and various segmented spaces;
s2, acquiring each object of the standard layer;
s3, establishing a relation between the stairwell and the front chamber and the door and window belonging to the space;
s4, establishing a communication relation between the stairwell and the front room through whether the stairwell and the front room share the same affiliated door object;
s5, acquiring a concave corridor or an open balcony space, judging whether the stairway is communicated with the concave corridor or the open balcony through the step S3 and the step S4, if so, the stairway does not need a smoke protection system, and recording that the attribute of the stairway is None;
s6, if the relevant space is not obtained in the step S5, obtaining a window belonging to the stairwell through the step S3, obtaining whether the window is an external window attribute, if the window is the external window, adding external window area calculation, calculating the sum of all external window areas of the stairwell in 1-5 layers through shaft network mapping, if the window is greater than 2m 2, adopting natural ventilation, recording the attribute as False, otherwise, needing to mechanically pressurize, and recording the attribute as True;
s7, for the front chamber and the shared front chamber, firstly judging whether the front chamber is an open front chamber, namely whether a railing exists in the space or not, if yes, the front chamber and a communicated stair room are not used as smoke prevention measures, and the attributes of the front chamber and the communicated stair room are recorded as None;
s8, if not, the window determined in the step S3 is used, the sum of the areas of the outer windows is calculated, if the sum of the areas of the front outer windows is larger than 2m 2, natural ventilation is carried out when the sum of the areas of the front outer windows is larger than 3m 2, the natural ventilation is recorded as an attribute False, otherwise, mechanical pressurization is needed, and the natural ventilation is recorded as True;
s9, if the front chamber needs to be mechanically pressurized in the step S8, removing the door communicated with the stairwell in the door to which the front chamber belongs in the step S4, screening the door opened to the front chamber, acquiring a wind shaft space, prolonging the door line opened to the door of the front chamber, judging whether the door line is intersected with the wind shaft space, and if the door line is not intersected with the wind shaft space, mechanically pressurizing the stairwell communicated with the front chamber, otherwise, not needed;
s10, after the 9 steps are judged to be finished, the pressurizing air quantity is calculated for the space of the stairwell or the front room which needs to be mechanically pressurized, and the pressurizing air quantity of the stairwell is calculated firstly;
s11, the pressurizing air supply quantity of the front chamber is calculated by referring to a formula of 'building smoke prevention and exhaust system design standard';
s12, judging and calculating the air quantity for subsequent heating and ventilation construction drawing pictures by completing project smoke prevention measures;
the identification of various components and various segmented spaces in the step S1 is realized by combining an AI technology and an image algorithm;
the object for obtaining the standard layer in step S2 specifically includes:
anterior chamber space and objects that share the anterior chamber;
one to five storey stairwell objects;
vertical hinged doors and common window objects;
the door and the space in the step S3 are determined to belong to the relationship by intersecting the space outline by using the direction line of the door; the window and space are judged by the intersection of bbox of the out-expanded window with the spatial profile.
2. The automatic discrimination method for smoke prevention measures of a heating and ventilation specialty stairwell and front room according to claim 1, characterized in that: the calculation formula in step S10 is as follows:
Lj＝L1+L2；
L1＝AkνN1。
3. the automatic discrimination method for smoke prevention measures of a heating and ventilation specialty stairwell and front room according to claim 1, characterized in that: the calculation formula in step S11 is as follows:
Ls＝L1+L3；
L3＝0.083×AfN3。
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| CN202210040457.XA CN114622744B (en) | 2022-01-14 | 2022-01-14 | Automatic distinguishing method for smoke prevention measures of heating and ventilation professional stairwell and front room |
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| CN202210040457.XA CN114622744B (en) | 2022-01-14 | 2022-01-14 | Automatic distinguishing method for smoke prevention measures of heating and ventilation professional stairwell and front room |
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| CN114622744B true CN114622744B (en) | 2024-04-05 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200173248Y1 (en) * | 1999-08-20 | 2000-03-15 | 우성상역주식회사 | Smoke protection system |
| CN106196400A (en) * | 2016-08-19 | 2016-12-07 | 中国科学技术大学 | A kind of skyscraper stairwell pressurization air-supply gear cigarette method and system |
| CN208124551U (en) * | 2018-04-25 | 2018-11-20 | 青岛渥汇人工环境有限公司 | A kind of smoke proof staircase or vestibule pressurization overbottom pressure value control device |
| CN109859561A (en) * | 2019-04-09 | 2019-06-07 | 应急管理部四川消防研究所 | Meet under fire working cup difference towards the platform and method of gravity-flow ventilation |
| CN109948230A (en) * | 2019-03-14 | 2019-06-28 | 杭州中联筑境建筑设计有限公司 | A kind of building smoke control system design method |
-
2022
- 2022-01-14 CN CN202210040457.XA patent/CN114622744B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200173248Y1 (en) * | 1999-08-20 | 2000-03-15 | 우성상역주식회사 | Smoke protection system |
| CN106196400A (en) * | 2016-08-19 | 2016-12-07 | 中国科学技术大学 | A kind of skyscraper stairwell pressurization air-supply gear cigarette method and system |
| CN208124551U (en) * | 2018-04-25 | 2018-11-20 | 青岛渥汇人工环境有限公司 | A kind of smoke proof staircase or vestibule pressurization overbottom pressure value control device |
| CN109948230A (en) * | 2019-03-14 | 2019-06-28 | 杭州中联筑境建筑设计有限公司 | A kind of building smoke control system design method |
| CN109859561A (en) * | 2019-04-09 | 2019-06-07 | 应急管理部四川消防研究所 | Meet under fire working cup difference towards the platform and method of gravity-flow ventilation |
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| CN114622744A (en) | 2022-06-14 |
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