CN114622744A - Automatic judgment method for smoke prevention measures of heating and ventilation special staircases and front rooms - Google Patents
Automatic judgment method for smoke prevention measures of heating and ventilation special staircases and front rooms Download PDFInfo
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- CN114622744A CN114622744A CN202210040457.XA CN202210040457A CN114622744A CN 114622744 A CN114622744 A CN 114622744A CN 202210040457 A CN202210040457 A CN 202210040457A CN 114622744 A CN114622744 A CN 114622744A
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- 239000000779 smoke Substances 0.000 title claims abstract description 40
- 230000002265 prevention Effects 0.000 title claims abstract description 38
- 238000010438 heat treatment Methods 0.000 title claims abstract description 26
- 238000009423 ventilation Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004364 calculation method Methods 0.000 claims description 15
- 238000010276 construction Methods 0.000 claims description 10
- 238000013461 design Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 3
- 238000013507 mapping Methods 0.000 claims description 3
- 238000012850 discrimination method Methods 0.000 claims 1
- 238000013473 artificial intelligence Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000011960 computer-aided design Methods 0.000 abstract 2
- 238000004458 analytical method Methods 0.000 abstract 1
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- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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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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Abstract
The invention discloses an automatic judging method for smoke prevention measures of a heating and ventilating professional staircase and a front room, which comprises the following steps: performing CAD (computer-aided design) analysis on a building plane base map of a project to obtain a primitive, and identifying various components and various partitioned spaces; obtaining each object of the standard layer; -associating stairwells and ante-chambers with doors and windows belonging to the space; the staircase and the front room are communicated through whether the same affiliated door object is shared. The invention does not need to look at the picture by manpower 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 ventilation smoke prevention plane drawing.
Description
Technical Field
The invention relates to the field of building design and construction, in particular to an automatic judgment method for smoke prevention measures of a heating and ventilating professional staircase and a front room.
Background
The CAD drawings are drawings which are created by AutoCAD software for the overall layout of a project, the external shape, internal layout, structural structure, interior and exterior finishing, material processing, equipment, construction, and the like of a building. In the heating and ventilation construction drawing, a plan view generally describes the geographical position and the main structure of a building macroscopically, and desalts walls, doors, windows, beams, columns and the like, while mainly emphasizing the arrangement of ventilation pipelines and the placement condition of equipment.
In the existing building design construction field, the drawing of the CAD drawing is mainly calculated by a heating and ventilation designer with many years of working experience according to the national heating and ventilation construction specification and the requirements of customers by combining the current auxiliary calculation plug-ins with the building professional drawing semi-automatically, and the designer needs to carry out comprehensive calculation on a plurality of layers of drawings to judge the result. However, there are problems with designers judging the form of smoke protection measures manually:
1. the design cycle is long, and the change in the construction process cannot be responded to quickly and timely. Because different spaces have requirements on smoke prevention measures according to national regulations, designers need to continuously inquire the national regulations when manually drawing, and carry out external window area judgment on the spaces arranged by smoke prevention and joint judgment on the staircases and front rooms which are communicated with each other.
2. The problem of calculation errors can be caused by artificial design, and in the data transmission process of calculation by manually reading pictures and then manually inputting the pictures into calculation software, errors in calculation of smoke prevention measures and pressurized air volume can occur, so that adverse effects are brought to the use after the subsequent construction is finished.
3. The judgment of the smoke prevention measures usually needs experienced heating and ventilation design engineers and accumulated industry knowledge as the basic condition of drawing, thereby causing higher manual design cost
Disclosure of Invention
Aiming at the problems, the invention provides an automatic judgment method for the smoke prevention measures of the heating and ventilating special staircases and front rooms.
In order to solve the technical problems, the invention is realized by the following technical scheme: the invention provides an automatic judging method for smoke prevention measures of a heating and ventilating professional staircase and a front room, which comprises the following steps:
s1, analyzing a building plane base map of a project through CAD to obtain a graphic element, and identifying various components and various partitioned spaces;
s2, obtaining each object of the standard layer;
s3, establishing relations between the staircases and the front rooms and the doors and windows belonging to the spaces;
s4, establishing a communication relation between the staircases and the front rooms through whether the staircases and the front rooms share the same affiliated door object or not;
s5, acquiring a corridor or an open balcony space, judging whether the staircase is communicated with the corridor or the open balcony through the step S3 and the step S4, if so, recording the attribute of the staircase as None, wherein the staircase does not need a smoke protection system;
s6, if the relevant space is not acquired in the step S5, acquiring the window belonging to the staircase through the step S3, acquiring whether the window is the attribute of the outer window, if the window is the outer window, adding the area calculation of the outer window, calculating the sum of all the areas of the outer windows of 1-5 layers of the staircase through the axis network mapping, if the sum is more than 2m ^2, adopting natural ventilation, recording the attribute of False, otherwise, needing mechanical pressurization, and recording the attribute of True;
s7, for the front room and the shared front room, firstly, judging whether the front room is an open front room, namely, whether a handrail or not exists in the space, if so, the front room and the connected stairwell are not used as smoke prevention measures, and the attributes are recorded as None;
s8, if the step S7 is not, the sum of the areas of the external windows is calculated by using the windows determined in the step S3, if the sum of the areas of the external windows in the front room is larger than 2m ^2, natural ventilation is carried out when the sum of the areas of the external windows in the front room is larger than 3m ^2, and the attribute is recorded as False, otherwise, mechanical pressurization is required, and the attribute is recorded as True;
s9, if the front room needs to be mechanically pressurized in the step S8, the doors opened to the front room are screened out after the doors communicated with the stairwell are removed from the doors to which the front room belongs in the step S4, then the air shaft space is acquired, the door line opened to the front room door is extended, whether the door line is intersected with the air shaft space is judged, if the door line is not intersected with the stairwell space, the stairwell communicated with the front room needs to be mechanically pressurized, and otherwise, the door line is not needed;
s10, after the 9 steps are judged, the pressurized air volume is calculated for the space of the stairs or the front room which needs to be mechanically pressurized, and the pressurized air volume of the stairs is firstly calculated;
s11, calculating the pressurized air supply volume of the front chamber by referring to a formula of design standard of building smoke prevention and exhaust system;
and S12, finishing the project smoke prevention measure judgment and calculating the air volume for the subsequent heating and ventilation construction drawing to use.
Preferably, the identification of the various components and the various partitioned spaces in step S1 is implemented by combining an AI technique and an image algorithm.
Preferably, the obtaining of the object of the standard layer in step S2 specifically includes:
an ante-chamber space and an object sharing the ante-chamber;
one-to five-story stairwell objects;
as well as side hung doors and conventional window objects.
Preferably, the door and the space in the step S3 are determined to belong to the relationship by intersecting the direction line of the door and the space profile; the window and space are judged by the intersection of the bbox of the flared window with the space 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。
as can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages:
the invention relates to an automatic judgment method for smoke prevention measures of a heating ventilation special staircase and a heating ventilation special front room, which does not need to manually see 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 pressurized air volume, and provides important data information support for subsequent automatic heating ventilation smoke prevention plane drawing.
Drawings
FIG. 1 is a flow chart of the steps of the present invention;
FIG. 2 is a diagram of an example of the effective judgment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-2, the present invention provides a method for automatically determining smoke prevention measures for heating and ventilating professional staircases and front rooms, comprising the steps of:
s1, analyzing a building plane base map of a project through CAD to obtain a graphic element, and identifying various components and various partitioned spaces;
s2, obtaining each object of the standard layer;
s3, establishing relations between the staircases and the front rooms and the doors and windows belonging to the spaces;
s4, establishing a communication relation between the staircases and the front rooms through whether the staircases and the front rooms share the same affiliated door object or not;
s5, acquiring a concave corridor or an open balcony space, judging whether the staircase is communicated with the concave corridor or the open balcony through the step S3 and the step S4, if so, recording the attribute of the staircase as None;
s6, if the relevant space is not acquired in the step S5, acquiring the window belonging to the staircase through the step S3, acquiring whether the window is the attribute of the outer window, if the window is the outer window, adding the area calculation of the outer window, calculating the sum of all the areas of the outer windows of 1-5 layers of the staircase through the axis network mapping, if the sum is more than 2m ^2, adopting natural ventilation, recording the attribute of False, otherwise, needing mechanical pressurization, and recording the attribute of True;
s7, for the front room and the shared front room, firstly, judging whether the front room is an open front room, namely, whether a handrail or not exists in the space, if so, the front room and the connected stairwell are not used as smoke prevention measures, and the attributes are recorded as None;
s8, if the step S7 is not, the sum of the areas of the external windows is calculated by using the windows determined in the step S3, if the sum of the areas of the external windows in the front room is larger than 2m ^2, natural ventilation is carried out when the sum of the areas of the external windows in the front room is larger than 3m ^2, and the attribute is recorded as False, otherwise, mechanical pressurization is required, and the attribute is recorded as True;
s9, if the front room needs to be mechanically pressurized in the step S8, the doors opened to the front room are screened out after the doors communicated with the stairwell are removed from the doors to which the front room belongs in the step S4, then the air shaft space is acquired, the door line opened to the front room door is extended, whether the door line is intersected with the air shaft space is judged, if the door line is not intersected with the stairwell space, the stairwell communicated with the front room needs to be mechanically pressurized, and otherwise, the door line is not needed;
s10, after the 9 steps are judged, the pressurized air volume is calculated for the space of the stairs or the front room which needs to be mechanically pressurized, and the pressurized air volume of the stairs is firstly calculated;
s11, calculating the pressurized air supply volume of the front chamber by referring to a formula of design standard of building smoke prevention and exhaust system;
and S12, finishing the project smoke prevention measure judgment and calculating the air volume for the subsequent heating ventilation construction drawing to use.
The identification of the various components and the various partitioned spaces in step S1 is specifically implemented by combining an AI technique and an image algorithm.
The obtaining of the standard layer object in step S2 specifically includes:
an ante-chamber space and an object sharing the ante-chamber;
one-to five-story stairwell objects;
as well as side hung doors and normal window objects.
Wherein the door and the space in step S3 are determined to belong to the relationship by intersecting the direction line of the door and the space profile; the window and the space are judged by intersecting the bbox of the outward-expanding window with the space outline;
in step S10, the calculation formula is as follows:
Lj＝L1+L2；
L1＝AkνN1；
the parameters can be obtained from AI image recognition results, and the calculation formula refers to design standard of building smoke prevention and exhaust system.
In step S11, the calculation formula is as follows:
Ls＝L1+L3；
L1＝AkνN1；
L3＝0.083×AfN3。
the invention provides an automatic judgment method for smoke prevention measures of a heating ventilation special staircase and a front room, which does not need to manually see pictures 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 volume, and provides important data information support for subsequent automatic heating ventilation smoke prevention plane pictures.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. An automatic discrimination method for smoke prevention measures of heating and ventilating professional staircases and front rooms is characterized by comprising the following steps:
s1, analyzing a building plane base map of a project through CAD to obtain a graphic element, and identifying various components and various partitioned spaces;
s2, obtaining each object of the standard layer;
s3, establishing relations between the staircases and the front rooms and the doors and windows belonging to the spaces;
s4, establishing a communication relation between the staircases and the front rooms through whether the staircases and the front rooms share the same affiliated door object or not;
s5, acquiring a concave corridor or an open balcony space, judging whether the staircase is communicated with the concave corridor or the open balcony through the step S3 and the step S4, if so, recording the attribute of the staircase as None;
s6, if no relevant space is obtained in the step S5, obtaining a window belonging to the staircase through the step S3, obtaining whether the window is the attribute of the outer window, if the window is the outer window, adding the area calculation of the outer window, calculating the sum of all the areas of the outer windows of 1-5 layers of the staircase through axis network mapping, if the sum is more than 2m ^2, adopting natural ventilation, recording the attribute of False, otherwise, needing mechanical pressurization, and recording the attribute of True;
s7, for the front room and the shared front room, firstly, judging whether the front room is an open front room, namely, whether a handrail or not exists in the space, if so, the front room and the connected stairwell are not used as smoke prevention measures, and the attributes are recorded as None;
s8, if the step S7 is not, the sum of the areas of the external windows is calculated by using the windows determined in the step S3, if the sum of the areas of the external windows in the front room is larger than 2m ^2, natural ventilation is carried out when the sum of the areas of the external windows in the front room is larger than 3m ^2, and the attribute is recorded as False, otherwise, mechanical pressurization is required, and the attribute is recorded as True;
s9, if the front room needs to be mechanically pressurized in the step S8, the doors opened to the front room are screened out after the doors communicated with the stairwell are removed from the doors to which the front room belongs in the step S4, then the air shaft space is acquired, the door line opened to the front room door is extended, whether the door line is intersected with the air shaft space is judged, if the door line is not intersected with the stairwell space, the stairwell communicated with the front room needs to be mechanically pressurized, and otherwise, the door line is not needed;
s10, after the 9 steps are judged, the pressurized air volume is calculated for the space of the stairs or the front room which needs to be mechanically pressurized, and the pressurized air volume of the stairs is firstly calculated;
s11, calculating the pressurized air supply volume of the front chamber by referring to a formula of design standard of building smoke prevention and exhaust system;
and S12, finishing the project smoke prevention measure judgment and calculating the air volume for the subsequent heating and ventilation construction drawing to use.
2. The method for automatically discriminating the smoke prevention measure of the heating and ventilating professional stairwell and the front room as claimed in claim 1, wherein: the identification of the various components and the various partitioned spaces in step S1 is specifically implemented by combining an AI technique and an image algorithm.
3. The method for automatically discriminating the smoke prevention measure of the heating and ventilating professional stairwell and the front room as claimed in claim 1, wherein: the obtaining of the object of the standard layer in step S2 specifically includes:
an ante-chamber space and an object sharing the ante-chamber;
one-to five-story stairwell objects;
as well as side hung doors and normal window objects.
4. The method for automatically judging the smoke prevention measures of the heating and ventilating specialized staircases and front rooms according to claim 1, wherein: the door and the space in the step S3 are determined to belong to the relationship by intersecting the direction line of the door and the space profile; the window and space are judged by the intersection of the bbox of the flared window with the space profile.
5. The method for automatically discriminating the smoke prevention measure of the heating and ventilating professional stairwell and the front room as claimed in claim 1, wherein: the calculation formula in step S10 is as follows:
Lj＝L1+L2；
L1＝AkνN1；
6. the method for automatically judging the smoke prevention measures of the heating and ventilating specialized staircases and front rooms according to claim 1, wherein: the calculation formula in step S11 is as follows:
Ls＝L1+L3；
L1＝AkνN1；
L3＝0.083×AfN3。
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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 |
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- 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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