CN110516371B - Fire evacuation route generation method, device, computer equipment and storage medium - Google Patents
Fire evacuation route generation method, device, computer equipment and storage medium Download PDFInfo
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Abstract
The application relates to a fire evacuation route generation method, a fire evacuation route generation device, computer equipment and a storage medium. The method comprises the following steps: acquiring a three-dimensional building information model, and identifying an evacuation space in the three-dimensional building information model; acquiring plane contour data of an evacuation space, and generating a plane evacuation route according to the plane contour data; when detecting that a height difference channel exists in the evacuation space, projecting a planar evacuation route onto the ground of the evacuation space to generate a ground evacuation route of the evacuation space. By adopting the method, the route drawing efficiency and accuracy can be improved.
Description
Technical Field
The present disclosure relates to the field of computer technologies, and in particular, to a method and an apparatus for generating a fire evacuation route, a computer device, and a storage medium.
Background
In building project design, fire control design is a very important link. Because the building project comprises a plurality of building floors, the construction condition of the inner space of each building floor is complex, and a specific fire evacuation route is required to be designed aiming at the fireproof subareas in each building floor.
At present, when a fire evacuation route is drawn, the fire evacuation route is generally drawn by manually adding lines on an already-generated building drawing or building model by means of design software. However, this approach results in less efficient route mapping.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a fire evacuation route generation method, apparatus, computer device, and storage medium that can improve route drawing efficiency.
A fire evacuation route generation method, the method comprising:
acquiring a three-dimensional building information model, and identifying an evacuation space in the three-dimensional building information model;
acquiring an evacuation space in the three-dimensional building information model;
acquiring plane profile data of the evacuation space, and generating a plane evacuation route according to the plane profile data;
when the fact that the height difference channel exists in the evacuation space is detected, the plane evacuation route is projected onto the ground of the evacuation space, and a ground evacuation route of the evacuation space is generated.
In one embodiment, the projecting the planar evacuation route onto the ground of the evacuation space, generating a ground evacuation route of the evacuation space, includes:
generating a spatial geometry centered on the planar evacuation route;
tangent the space geometry with the ground of the evacuation space to obtain an intersecting line;
discrete points are generated by the intersecting lines in a discrete mode, and the discrete points are projected on the ground of the evacuation space;
and generating a ground evacuation route according to the discrete points projected on the ground.
In one embodiment, the generating a ground evacuation route from the discrete points projected on the ground comprises:
acquiring the discrete points projected on the ground by each intersection line at two end point positions;
and connecting the two discrete points to generate a ground evacuation route.
In one embodiment, after the generating the ground evacuation route of the evacuation space, the method further includes:
identifying a fire protection unit from the three-dimensional building information model;
acquiring the ground evacuation route of each evacuation space in the fireproof unit;
and calculating the route length of the ground evacuation route, and generating a compliance detection result of the ground evacuation route in the fireproof unit according to the route length.
In one embodiment, the generating a compliance detection result of the ground evacuation route in the fire protection unit according to the route length includes:
acquiring building attribute parameters of the fireproof unit, and searching evacuation specification data corresponding to the building attribute parameters;
comparing the route length with a corresponding length threshold in the evacuation specification data;
and when the route length exceeds the corresponding length threshold value, generating a non-compliance detection result.
In one embodiment, the generating a planar evacuation route from the planar profile data includes:
determining the space type and the space shape of the evacuation space according to the plane profile data;
acquiring an evacuation starting point and an evacuation outlet of the evacuation space;
and generating a plane evacuation route from the evacuation starting point to the evacuation outlet according to the space type and the space shape.
A fire evacuation route generation device, the device comprising:
the space recognition module is used for acquiring a three-dimensional building information model and recognizing an evacuation space in the three-dimensional building information model;
the plane route generation module is used for acquiring plane contour data of the evacuation space and generating a plane evacuation route according to the plane contour data;
the ground route generation module is used for projecting the plane evacuation route to the ground of the evacuation space when detecting that a height difference channel exists in the evacuation space, and generating a ground evacuation route of the evacuation space.
In one embodiment, the apparatus further comprises:
the fireproof unit identification module is used for identifying a fireproof unit from the three-dimensional building information model;
the route acquisition module is used for acquiring the ground evacuation route of each evacuation space in the fireproof unit;
the detection module is used for calculating the route length of the ground evacuation route and generating a compliance detection result of the ground evacuation route in the fireproof unit according to the route length.
A computer device comprising a memory storing a computer program and a processor implementing the steps of the method described above when the processor executes the computer program.
A computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of the above method.
According to the fire-fighting evacuation route generation method, the fire-fighting evacuation route generation device, the computer equipment and the storage medium, in the process of building structure fire-fighting design, the planar evacuation route of the evacuation space is generated according to the outline data of the space, when the height difference channel of the evacuation space is detected, the planar evacuation route is mapped to the ground of the three-dimensional evacuation space, so that a more accurate three-dimensional evacuation route can be automatically generated, and the drawing efficiency and the accuracy of the evacuation route are improved.
Drawings
FIG. 1 is a flow chart of a method of generating a fire evacuation route in one embodiment;
FIG. 2 is a schematic diagram of a planar evacuation route generated by an evacuation space according to an embodiment;
FIG. 3 is a schematic illustration of a ground evacuation route generated in accordance with FIG. 2 in one embodiment;
FIG. 4 is a schematic diagram of a ground evacuation route generated by an evacuation space according to another embodiment;
FIG. 5 is a flow chart of a method of detecting the route compliance in one embodiment;
FIG. 6 is a block diagram of a fire evacuation route generation device in one embodiment;
fig. 7 is an internal structural diagram of a computer device in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The fire evacuation route generation method provided by the application can be applied to a terminal and also can be applied to a server. The terminal may be, but not limited to, various personal computers, notebook computers, smart phones, tablet computers, and the like. The server may be implemented as a stand-alone server or as a server cluster composed of a plurality of servers.
In one embodiment, as shown in fig. 1, a fire evacuation route generating method is provided, and the method is applied to a terminal for illustration, and includes the following steps:
step 210, acquiring a three-dimensional building information model, and identifying an evacuation space in the three-dimensional building information model.
The three-dimensional building information model (BIM model) is a three-dimensional model of a building for which a fire design is required. Specifically, the terminal may acquire building information by acquiring a Building Information Model (BIM) of a building, and construct a three-dimensional model of the building.
The evacuation space is a space in the building which plays an evacuation role. According to the building design fire control specifications, the evacuation space includes two types, one is an evacuation space formed by a single room, and the other is an evacuation space formed by a corridor. The terminal can scan each floor of the building layer by layer to identify a plurality of evacuation spaces in each floor.
Step 220, obtaining plane profile data of the evacuation space, and generating a plane evacuation route according to the plane profile data.
The plane profile data can be obtained from a Building Information Model (BIM) or can be an evacuation space plan extracted from a two-dimensional plane drawing of a corresponding floor. The plane profile data is data such as the size and position of each part of the spatial structure, and the spatial structure may include a spatial shape and a spatial internal structure. For example, the external shape of a room is semicircular, the external shape of a corridor is rectangular, and the like. The internal structure can be a partition, a square column, a door, an outlet and the like.
The terminal determines the positions of an evacuation starting point and an evacuation outlet of each evacuation space according to the plane profile data, wherein the evacuation starting point is the starting point of an evacuation path in the evacuation space, the evacuation starting point is each corner of a room for the evacuation space of a single room, and the evacuation starting point is a floor evacuation door, namely each room door of a floor for the evacuation space of a corridor. The evacuation outlet refers to the end point of the evacuation path in the evacuation space, the evacuation outlet is a room door for the evacuation space of a single room, and the evacuation outlet is a safety outlet of a floor for the evacuation space of a corridor. And the terminal automatically generates an evacuation route from the evacuation starting point to the evacuation outlet according to the plane profile data, and then a two-dimensional plane evacuation route of the evacuation space is obtained.
Step 230, when it is detected that the evacuation space has a height difference channel, projecting the planar evacuation route onto the ground of the evacuation space, and generating a ground evacuation route of the evacuation space.
The terminal detects the ground height of the evacuation space and detects whether a height difference channel exists in the evacuation space. The evacuation space may have uneven ground and indoor height difference due to the local arrangement of steps, slopes and other building channels. The height difference channels are channels with the height difference of the ground or the gradient exceeding a preset threshold value, such as steps, slopes and the like, of the channel structures in the space with the height difference of the ground. Specifically, the terminal can acquire ground height data of each evacuation space, such as coordinates in the height direction, judge whether the height difference exists at each position of the ground according to the ground height data, and judge that a height difference channel exists in the evacuation space if the height difference exists; if the height difference does not exist, judging that a height difference channel does not exist in the evacuation space.
When the terminal does not detect the height difference channel from the evacuation space, the obtained plane evacuation route is set as the ground evacuation route of the evacuation space. When the terminal detects that a height difference channel exists in the evacuation space, the obtained planar evacuation route is projected onto the ground of the three-dimensional model of the evacuation space, the ground evacuation route of the evacuation space is generated according to the projection on the ground, and the two-dimensional planar evacuation route is converted into the three-dimensional ground evacuation route, so that the terminal can more accord with the actual walking route of people in the space, and the more accurate evacuation route is obtained.
In the above embodiment, during the fire-fighting design of the building structure, a planar evacuation route of the evacuation space is generated according to the outline data of the space, and when a height difference channel of the evacuation space is detected, the planar evacuation route is mapped onto the ground of the three-dimensional evacuation space, so that a more accurate three-dimensional evacuation route can be automatically generated, and the drawing efficiency of the evacuation route is improved.
In one embodiment, projecting the planar evacuation route onto the ground of the evacuation space, the step of generating the ground evacuation route of the evacuation space may comprise: generating a spatial geometry with a planar evacuation route as a central line; tangential space geometry and the ground of the evacuation space to obtain an intersecting line; discrete points are generated by dispersing the intersecting lines, and the discrete points are projected on the ground of the evacuation space; a ground evacuation route is generated from discrete points projected on the ground.
The terminal obtains a planar evacuation route of each evacuation space, takes the line position of the planar evacuation route as the central position of a space geometric body, automatically generates the space geometric body in the evacuation space, wherein the thickness of the space geometric body is as small as possible, such as 1 millimeter, 0.5 millimeter and the like, the height of the space geometric body is not limited, the space geometric body is lower than the height of a floor, and the space geometric body can be a space wall body and the like.
And the terminal is tangent to the generated space geometric body and the ground of the evacuation space, so as to obtain an intersecting line of the space geometric body and the ground. For example, the intersection of the spatial geometry with the ground may be calculated by boolean operations. Since the planar evacuation route of the entire evacuation space may be composed of a plurality of line segments, the resulting intersection line may also include a plurality of line segments. In addition, when the space geometry is tangent to the height difference channel of the evacuation space, the height difference channel can intercept the space geometry at the corresponding position, and the number of obtained intersecting lines is larger than the number of evacuation line segments in the planar evacuation route. For example, when the level difference channel is a slope, the space geometry is truncated into three segments, and when the level difference channel is a step, the more the number of steps, the more the number of intersecting lines that are truncated.
The terminal discretizes each intersection line to generate a plurality of discrete points, projects the generated discrete points on the ground corresponding to the evacuation space, and connects the discrete points on the ground to generate a ground evacuation route of the evacuation space. The number of the discrete points can be set according to the accuracy requirement of the route, and the higher the accuracy of the requirement is, the more the number of the generated discrete points can be.
In the embodiment, the ground evacuation route is generated by generating the space geometry and generating the ground evacuation route in a mode that the space geometry is tangential to the evacuation space, so that the ground evacuation route is conveniently realized by building software operation or programming, the processing flow is simplified, and the method can be suitable for various space structures.
In one embodiment, the step of generating a ground evacuation route from discrete points projected on the ground may comprise: acquiring discrete points projected on the ground by each intersection line at two end point positions; and connecting the two discrete points to generate a ground evacuation route.
In this embodiment, the terminal acquires two discrete points projected on the ground at the positions of both ends of each intersection line, connects the two discrete points into a straight line, and uses the straight line obtained by connection as the ground evacuation route. The ground evacuation route is typically a straight line, and therefore, the line projected onto the ground of the three-dimensional evacuation space is also typically a straight line. In a special case, some line segments in the ground evacuation route may be curves, in this embodiment, by connecting the head and tail discrete points of the line segments in a straight line, the projection of the intersecting line of the curves is simplified into straight line processing, so that the processing efficiency is improved, and the straight line route is more in line with the walking path of people. In another embodiment, a plurality of discrete points of which the intersecting lines project on the ground at a plurality of positions may be obtained, and adjacent discrete points may be connected one by one according to an arrangement sequence of the plurality of discrete points, so as to generate a ground evacuation route. In other embodiments, other ways of generating ground evacuation routes may be employed.
As shown in fig. 2, fig. 2 is a schematic diagram of a planar evacuation route generated by an evacuation space, wherein the ground of the line segment AB has a height difference, and is a ramp-type height difference channel. Fig. 3 is a schematic diagram of the planar evacuation route in fig. 2 projected on the ground in three-dimensional space, and the obtained ground evacuation route, in which the ground evacuation route mapped by the line segment AB in fig. 2 is a line segment a 'B'.
As shown in fig. 4, fig. 4 is a schematic diagram of a ground evacuation route generated by an evacuation space, in which a step-shaped height difference channel exists, a plane evacuation route corresponding to a step position is a straight line, after three-dimensional cutting projection, the plane evacuation route is divided into four sections by four steps, and a ground evacuation route is generated on the surface of each step.
In one embodiment, as shown in fig. 5, fig. 5 is a flow chart of a route compliance detection method of a generated ground evacuation route, and specifically includes the following steps:
at step 510, a fire protection unit is identified from the three-dimensional building information model.
In each floor of the building, each floor is divided into a plurality of fire protection units according to the arrangement of the space structures in the floors, for example, a certain floor can comprise 4 fire protection units, namely a fire protection unit 1, a fire protection unit 2, a fire protection unit 3 and a fire protection unit 4. Each fire protection unit may consist of a plurality of evacuation spaces, e.g. three evacuation spaces in the form of walkways, walkway 1, walkway 2 and walkway 3, respectively, are included in the fire protection unit 1.
The terminal identifies a plurality of fire protection units in each floor. Specifically, each evacuation space in the floor is fire-proof identified according to the fire-proof unit to which the evacuation space belongs, the fire protection identifications of walkway 1, walkway 2 and walkway 3 in the above example are all fire protection zone 1. And the terminal searches all evacuation spaces with consistent fireproof identifications and recognizes the evacuation spaces as a fireproof unit.
After the terminal generates the ground evacuation route, the position information of the ground evacuation route of each evacuation space is correspondingly stored with the space identifier of the evacuation space, and an evacuation information file of each evacuation space is established. The terminal obtains the space identification of each evacuation space in the identified fireproof unit, and searches the ground evacuation route corresponding to the space identification.
The terminal calculates the route length of the ground evacuation route in each evacuation space, and sums the route lengths of all the evacuation spaces to obtain the route total length of the fireproof unit. The terminal acquires fire-fighting route specification data, compares the obtained route length or route total length with the fire-fighting route specification data, judges whether the ground evacuation path meets the specification requirements according to the comparison result, and can further generate a compliance detection result according to the detection violation data, and sends the compliance detection result to each design terminal for reference modification of designers or engineers.
In one embodiment, when calculating the route length of the ground evacuation route in each evacuation space, the terminal respectively obtains the space coordinates of the endpoints of each component line segment in the ground evacuation route, calculates the line segment length of each component line segment according to the space coordinates of the two endpoints, and sums the line segment lengths of all component line segments to obtain the route length of the evacuation space.
In one embodiment, the step of generating a compliance detection result of the ground evacuation route in the fire protection unit according to the route length may comprise: acquiring building attribute parameters of the fireproof unit, and searching evacuation specification data corresponding to the building attribute parameters; comparing the route length with a corresponding length threshold value in the evacuation specification data; and when the length of the route exceeds the corresponding length threshold value, generating a non-compliance detection result.
Building attribute parameters may include, but are not limited to, parameters of building nature, building class, space shape, number of floors of building, fire rating, etc. Fire codes for buildings of different building attributes are different. For example, a building with a higher fire resistance level requires a shorter length of evacuation route, and a higher building requires a lower length of evacuation route than a lower building.
The terminal extracts all building attribute parameters of the fireproof unit from the building information model, and searches preset evacuation specification data corresponding to the building attribute parameters. The terminal compares the calculated route length with a required length threshold value at a corresponding position in the evacuation standard data, judges whether the route length exceeds the corresponding length threshold value, and when the route length does not exceed the length threshold value, the route length accords with the fire control standard; when the route length exceeds the length threshold, then the route does not meet the specification.
The granularity of routes to be compared in the evacuation specification data of different building attributes is also different, for example, the specification level is higher, and the route length specification at each space position can be possibly refined, for example, the evacuation route length between the evacuation doors between two safety exits, the evacuation route length at the two sides or the end of the bag-shaped pavement and the like can be specified. Whereas routes with lower specification levels may be coarser than compared to the total route length of the whole evacuation space, or to the total route length of the fire protection unit, etc.
Further, the terminal detects whether the route length of the ground evacuation route of all the fireproof units in all floors of the whole building meets the standard requirement by adopting the same method, and when all the route length meets the design standard requirement, a fire-fighting evacuation map of the building is generated according to the ground evacuation route and is used for issuing security education and evacuation prompts, and the fire-fighting evacuation map is stored in association with a building information model of the building.
In the embodiment, whether the ground evacuation route meets the relevant requirements of the fire control standard or not can be automatically detected, and a designer can be timely reminded of correcting the building information model according to the detection result, so that the finally obtained building information model meets the requirements of the fire control design.
In one embodiment, the step of generating a planar evacuation route from the planar profile data may comprise: determining the space type and the space shape of the evacuation space according to the plane profile data; acquiring an evacuation starting point and an evacuation outlet of the evacuation space; and generating a plane evacuation route from the evacuation starting point to the evacuation outlet according to the space type and the space shape.
The space type of the evacuation space may include at least two of an evacuation space formed for a single room and an evacuation space formed for a corridor. The space shape may be divided into at least two types, one is a linear space formed entirely of a straight line and one is an arc space in which an arc exists. The terminal can acquire the space outline of the evacuation space from the plane outline data, and determine the space shape and the space type of the evacuation space according to the space outline.
The evacuation starting point is the starting point of the evacuation path in the evacuation space, the evacuation starting point is each corner of the room for the evacuation space of a single room, and the evacuation starting point is a floor evacuation door, namely each room door of the floor for the evacuation space of the corridor. The evacuation outlet refers to the end point of the evacuation path in the evacuation space, the evacuation outlet is a room door for the evacuation space of a single room, and the evacuation outlet is a safety outlet of a floor for the evacuation space of a corridor. The terminal acquires the position information of an evacuation starting point and an evacuation outlet in the evacuation space.
The method comprises the steps that the drawing rules of plane evacuation routes of different space types and space shapes are different, route drawing programs under various conditions are set in a terminal in advance, the terminal searches for the route drawing programs corresponding to the space types and the space shapes, the position information of an evacuation starting point and an evacuation outlet is input into the corresponding route drawing programs, and the plane evacuation route from the evacuation starting point to the evacuation outlet is output.
For example, when the space type of the evacuation space is a room and the space shape is a concave arc space, the drawing rule of the planar evacuation route may include determining an arc point, an evacuation space exit gate point, and a gate center point of the evacuation space according to the planar profile data; if the evacuation points are invisible to the evacuation space exit door points, connecting the evacuation points, the arc points, the evacuation space exit door points and the door center points to obtain evacuation routes from the evacuation points passing through the arc points to the evacuation space exits; and selecting the shortest evacuation route from the evacuation routes passing through each arc point as the evacuation route from the evacuation point to the evacuation space outlet. If the evacuation points and the exit door points of the evacuation space are invisible, determining pits of the evacuation space according to the plane contour data; and connecting the evacuation points, the pits, the evacuation space outlet door points and the door center points to obtain an evacuation route from the evacuation points to the evacuation space outlet.
It should be understood that, although the steps in the flowcharts of fig. 1 and 5 are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in fig. 1 and 5 may include multiple sub-steps or phases that are not necessarily performed at the same time, but may be performed at different times, nor does the order in which the sub-steps or phases are performed necessarily occur sequentially, but may be performed alternately or alternately with at least a portion of the sub-steps or phases of other steps or other steps.
In one embodiment, as shown in fig. 6, there is provided a fire evacuation route generation device including: a spatial identification module 610, a planar route generation module 620, and a ground route generation module 630, wherein:
the space identifying module 610 is configured to obtain a three-dimensional building information model, and identify an evacuation space in the three-dimensional building information model.
The plane route generation module 620 is configured to obtain plane profile data of the evacuation space, and generate a plane evacuation route according to the plane profile data.
The ground route generation module 630 is configured to, when detecting that a level difference channel exists in the evacuation space, project a planar evacuation route onto the ground of the evacuation space, and generate a ground evacuation route of the evacuation space.
In one embodiment, the ground route generation module 630 may include:
and the space geometry generating unit is used for generating a space geometry taking the plane evacuation route as a central line.
And the tangent unit is used for tangent the space geometric body with the ground of the evacuation space to obtain an intersecting line.
And the discrete unit is used for carrying out discrete generation on the intersecting line to generate discrete points and projecting the discrete points on the ground of the evacuation space.
And the route generation unit is used for generating a ground evacuation route according to the discrete points projected on the ground.
In one embodiment, the route generation unit may include:
and the endpoint acquisition subunit is used for acquiring discrete points at two endpoint positions of each intersection line projected on the ground.
And the connection subunit is used for connecting the two discrete points to generate a ground evacuation route.
In one embodiment, the fire evacuation route generation device may further include:
and the fireproof unit identification module is used for identifying the fireproof unit from the three-dimensional building information model.
The route acquisition module is used for acquiring ground evacuation routes of each evacuation space in the fireproof unit.
The detection module is used for calculating the route length of the ground evacuation route and generating a compliance detection result of the ground evacuation route in the fireproof unit according to the route length.
In one embodiment, the detection module may include:
the parameter acquisition unit is used for acquiring the building attribute parameters of the fireproof unit and searching evacuation specification data corresponding to the building attribute parameters.
And the comparison unit is used for comparing the route length with a corresponding length threshold value in the evacuation standard data.
And the result generating unit is used for generating a non-compliance detection result when the route length exceeds the corresponding length threshold value.
In one embodiment, the planar route generation module 620 may include:
and the space identification unit is used for determining the space type and the space shape of the evacuation space according to the plane contour data.
The starting point acquisition unit is used for acquiring an evacuation starting point and an evacuation outlet of the evacuation space.
And the route drawing unit is used for generating a plane evacuation route from the evacuation starting point to the evacuation outlet according to the space type and the space shape.
The specific definition of the fire evacuation route generation device may be referred to the definition of the fire evacuation route generation method hereinabove, and will not be described in detail herein. The modules in the fire evacuation route generation device may be implemented in whole or in part by software, hardware, or a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, a computer device is provided, which may be a terminal, and the internal structure of which may be as shown in fig. 7. The computer device includes a processor, a memory, a network interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program when executed by a processor implements a fire evacuation route generation method. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, can also be keys, a track ball or a touch pad arranged on the shell of the computer equipment, and can also be an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that the structure shown in fig. 7 is merely a block diagram of some of the structures associated with the present application and is not limiting of the computer device to which the present application may be applied, and that a particular computer device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided comprising a memory storing a computer program and a processor that when executing the computer program performs the steps of: acquiring a three-dimensional building information model, and identifying an evacuation space in the three-dimensional building information model; acquiring plane contour data of an evacuation space, and generating a plane evacuation route according to the plane contour data; when detecting that a height difference channel exists in the evacuation space, projecting a planar evacuation route onto the ground of the evacuation space to generate a ground evacuation route of the evacuation space.
In one embodiment, the processor when executing the computer program performs the step of projecting the planar evacuation route onto the ground of the evacuation space, generating a ground evacuation route for the evacuation space, further for: generating a spatial geometry with a planar evacuation route as a central line; tangential space geometry and the ground of the evacuation space to obtain an intersecting line; discrete points are generated by dispersing the intersecting lines, and the discrete points are projected on the ground of the evacuation space; a ground evacuation route is generated from discrete points projected on the ground.
In one embodiment, the processor, when executing the computer program, performs the step of generating a ground evacuation route from discrete points projected on the ground, further for: acquiring discrete points projected on the ground by each intersection line at two end point positions; and connecting the two discrete points to generate a ground evacuation route.
In one embodiment, the processor when executing the computer program further performs the steps of: identifying a fire protection unit from the three-dimensional building information model; acquiring ground evacuation routes of each evacuation space in the fireproof unit; and calculating the route length of the ground evacuation route, and generating a compliance detection result of the ground evacuation route in the fireproof unit according to the route length.
In one embodiment, the processor, when executing the computer program, performs the step of generating a compliance detection result of the ground evacuation route in the fire protection unit from the route length, is further configured to: acquiring building attribute parameters of the fireproof unit, and searching evacuation specification data corresponding to the building attribute parameters; comparing the route length with a corresponding length threshold value in the evacuation specification data; and when the length of the route exceeds the corresponding length threshold value, generating a non-compliance detection result.
In an embodiment, the processor, when executing the computer program, performs the step of generating a planar evacuation route from the planar profile data, is further configured to: determining the space type and the space shape of the evacuation space according to the plane contour data; acquiring an evacuation starting point and an evacuation outlet of an evacuation space; and generating a plane evacuation route from the evacuation starting point to the evacuation outlet according to the space type and the space shape.
In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, performs the steps of: acquiring a three-dimensional building information model, and identifying an evacuation space in the three-dimensional building information model; acquiring plane contour data of an evacuation space, and generating a plane evacuation route according to the plane contour data; when detecting that a height difference channel exists in the evacuation space, projecting a planar evacuation route onto the ground of the evacuation space to generate a ground evacuation route of the evacuation space.
In an embodiment, the computer program when executed by the processor, is further adapted to, when performing the step of projecting a planar evacuation route onto the ground of the evacuation space, generating a ground evacuation route of the evacuation space: generating a spatial geometry with a planar evacuation route as a central line; tangential space geometry and the ground of the evacuation space to obtain an intersecting line; discrete points are generated by dispersing the intersecting lines, and the discrete points are projected on the ground of the evacuation space; a ground evacuation route is generated from discrete points projected on the ground.
In one embodiment, the computer program, when executed by the processor, further performs the step of generating a ground evacuation route from discrete points projected on the ground, for: acquiring discrete points projected on the ground by each intersection line at two end point positions; and connecting the two discrete points to generate a ground evacuation route.
In one embodiment, the computer program when executed by the processor further performs the steps of: identifying a fire protection unit from the three-dimensional building information model; acquiring ground evacuation routes of each evacuation space in the fireproof unit; and calculating the route length of the ground evacuation route, and generating a compliance detection result of the ground evacuation route in the fireproof unit according to the route length.
In one embodiment, the computer program, when executed by the processor, performs the step of generating a compliance detection result of a ground evacuation route in the fire protection unit from the route length, is further adapted to: acquiring building attribute parameters of the fireproof unit, and searching evacuation specification data corresponding to the building attribute parameters; comparing the route length with a corresponding length threshold value in the evacuation specification data; and when the length of the route exceeds the corresponding length threshold value, generating a non-compliance detection result.
In an embodiment, the computer program, when executed by the processor, further performs the step of generating a planar evacuation route from the planar profile data, for: determining the space type and the space shape of the evacuation space according to the plane contour data; acquiring an evacuation starting point and an evacuation outlet of an evacuation space; and generating a plane evacuation route from the evacuation starting point to the evacuation outlet according to the space type and the space shape.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the various embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (10)
1. A fire evacuation route generation method, the method comprising:
acquiring a three-dimensional building information model, and identifying an evacuation space in the three-dimensional building information model;
acquiring plane profile data of the evacuation space, and generating a plane evacuation route according to the plane profile data;
when detecting that a height difference channel exists in the evacuation space, generating a space geometry taking the plane evacuation route as a central line; tangent the space geometry with the ground of the evacuation space to obtain an intersecting line; dispersing the intersecting lines to generate discrete points, and projecting the discrete points on the ground of the evacuation space; and generating a ground evacuation route according to the discrete points projected on the ground.
2. The method of claim 1, wherein the generating a ground evacuation route from the discrete points projected on the ground comprises:
acquiring the discrete points of the intersection lines projected on the ground at two end point positions;
and connecting the two discrete points to generate a ground evacuation route.
3. The method of claim 1, wherein after the generating the ground evacuation route for the evacuation space, further comprising:
identifying a fire protection unit from the three-dimensional building information model;
acquiring the ground evacuation route of each evacuation space in the fireproof unit;
and calculating the route length of the ground evacuation route, and generating a compliance detection result of the ground evacuation route in the fireproof unit according to the route length.
4. A method according to claim 3, wherein the generating a compliance detection of the ground evacuation route in the fire protection unit from the route length comprises:
acquiring building attribute parameters of the fireproof unit, and searching evacuation specification data corresponding to the building attribute parameters;
comparing the route length with a corresponding length threshold in the evacuation specification data;
and when the route length exceeds the corresponding length threshold value, generating a non-compliance detection result.
5. A method according to claim 3, wherein the calculating the route length of the ground evacuation route comprises:
respectively acquiring the space coordinates of each component line segment end point in the ground evacuation route, and calculating the line segment length of each component line segment according to the space coordinates of the two end points;
and summing the line segment lengths of all the component line segments to obtain the route length of the ground evacuation route.
6. The method of claim 1, wherein the generating a planar evacuation route from the planar profile data comprises:
determining the space type and the space shape of the evacuation space according to the plane profile data;
acquiring an evacuation starting point and an evacuation outlet of the evacuation space;
and generating a plane evacuation route from the evacuation starting point to the evacuation outlet according to the space type and the space shape.
7. A fire evacuation route generation device, the device comprising:
the space recognition module is used for acquiring a three-dimensional building information model and recognizing an evacuation space in the three-dimensional building information model;
the plane route generation module is used for acquiring plane contour data of the evacuation space and generating a plane evacuation route according to the plane contour data;
the ground route generation module is used for generating a space geometrical body taking the plane evacuation route as a central line when detecting that a height difference channel exists in the evacuation space; tangent the space geometry with the ground of the evacuation space to obtain an intersecting line; dispersing the intersecting lines to generate discrete points, and projecting the discrete points on the ground of the evacuation space; and generating a ground evacuation route according to the discrete points projected on the ground.
8. The apparatus of claim 7, wherein the apparatus further comprises:
the fireproof unit identification module is used for identifying a fireproof unit from the three-dimensional building information model;
the route acquisition module is used for acquiring the ground evacuation route of each evacuation space in the fireproof unit;
the detection module is used for calculating the route length of the ground evacuation route and generating a compliance detection result of the ground evacuation route in the fireproof unit according to the route length.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 6 when the computer program is executed.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.
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