CN118070403A - BIM-based method and system for automatically generating lamp loop influence area space - Google Patents
BIM-based method and system for automatically generating lamp loop influence area space Download PDFInfo
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Abstract
The invention discloses a method and a system for automatically generating a lamp loop influence area space based on BIM, which relate to the technical field of building informatization, and are used for establishing the BIM of a building space, acquiring an offline data packet after the BIM is light and deploying the offline data packet to a local server, and analyzing the offline data packet to acquire lamp component data, vertex data, index data, material index and space geometric information; establishing association between the lamp device and the lamp component in the BIM through device codes; dividing a plurality of lamp devices into lamp loop groups, obtaining component identification ID and corresponding geometric data of the lamp devices in each lamp loop group, generating a three-dimensional bounding box of the lamp components, and generating an influence region space of the components according to the three-dimensional bounding box of the lamp components. According to the light type component equipment in the BIM model, the space range influenced by the light type component equipment is automatically identified and generated, and efficient, accurate and reliable space division of building illumination is realized.
Description
Technical Field
The invention relates to the technical field of building informatization, in particular to a method and a system for automatically generating a lamp loop influence area space based on BIM.
Background
Building lighting refers to various lighting devices installed inside or outside a building to provide proper lighting conditions to meet the visual and aesthetic needs of people. The design and management of building lighting involves a number of aspects such as lighting effects, lighting control, lighting energy conservation, lighting safety, etc. In order to achieve efficient design and management of building lighting, it is necessary to divide and organize the space inside the building in order to perform different lighting settings and controls for different spaces. In practical implementation, a room may be divided into a plurality of illumination areas and loops, but in the conventional building information model BIM (Building Information Modeling), the illumination areas are not expressed on the drawing, and the illumination areas are often determined by personnel in site construction. Two spatial definitions exist in the BIM model, namely, the first is the physical space, namely, the room we can see; the second is an area of influence, which may be smaller than the physical space, or span multiple physical spaces. And the area of influence is required to illuminate such functions, being able to objectively reflect the situation of illumination. However, the BIM model cannot be conveniently defined and displayed directly at present. Currently, building lighting design and management based on BIM mainly relies on manual space division and organization, i.e. according to the plan and elevation of the building, the range and attribute of each space are manually determined, and then according to different space types and functions, corresponding lighting devices and control modes are manually selected and configured. The space in the verification and the site needs to be divided in a large amount, and the space in the model needs to be divided in a large amount, so that data is disordered, and the workload is large.
Disclosure of Invention
The invention aims to provide a method and a system for automatically generating a light loop influence area space based on BIM, which can automatically identify and generate the space range influenced by light type component equipment in a BIM model, thereby realizing efficient, accurate and reliable space division and organization reduction workload of building illumination.
The invention solves the problems by the following technical proposal:
a method of automatically generating a lamp loop area of influence space based on BIM, comprising:
s100, building a building information model BIM of a building space, and obtaining an offline data packet after the BIM is light;
Step S200, downloading an offline data packet, deploying the offline data packet to a local server, and analyzing the offline data packet to obtain a node hierarchical structure, geometric data and component metadata of the BIM; the offline data packet includes: scene metadata, node hierarchy, geometry data, texture data, component metadata, resource index and additional data (including camera view data, light settings, animation key frames), etc.; the scene metadata comprise version information, unit system, coordinate system, BIM project information, model authors and the like; the node hierarchical structure comprises a hierarchical tree relation of model objects in a scene, id, name, transformation matrix and the like of each node, and the space geometric information comprises space vertex coordinates; the geometry data comprises vertex data (including position, normal line, texture coordinates and the like), index data (including a map file list, uri, a shader program index and the like), texture index, space geometry information and the like; the texture data includes texture attributes (color, transparency, smoothness, etc.) and a map file index; the component metadata (Component Metadata): BIM component ID, family type, family name, classification code, component parameters and attributes, wherein the attribute information comprises parameters customized by modeling personnel in a model, such as equipment code, installation information, design information and the like;
Step S300, obtaining a component of the type of the lamp equipment, namely a lamp component, from the node hierarchy structure, obtaining data of all lamp components from component metadata, and obtaining vertex data, index data, material indexes and space geometric information from geometric data;
Step S400, generating an equipment information ledger of the lamp equipment according to the data of all the lamp components, establishing association between the lamp equipment and the lamp components in the BIM through equipment codes, and storing the association in a database;
Step S500, dividing a plurality of lamp devices into lamp loop groups, obtaining component Identity (ID) of the lamp devices in each lamp loop group and corresponding geometric data, generating a three-dimensional bounding box of the lamp components, and generating an influence region space of the components according to the three-dimensional bounding box of the lamp components.
Further, the geometric body data comprise coordinates of the component, vertex data, a three-dimensional bounding box and space vertex coordinates of a space where the component is located, and boundary coordinates of a room are extracted according to the space vertex coordinates;
the method for generating the three-dimensional bounding box of the lamp component comprises the following steps:
Generating bounding boxes of each lamp device according to vertex data of the lamp components, wherein three-dimensional coordinates of the lamp components are (x, y, z), minimum coordinates of the bounding boxes of the lamp components are (minX, minY, minZ), maximum coordinates of the bounding boxes are (maxX, maxY, maxZ), and a formula for generating the bounding boxes is as follows:
minX=min(x1,x2,...,xn)；
maxX=max(x1,x2,...,xn)；
minY=min(y1,y2,...,yn)；
maxY=max(y1,y2,...,yn)；
minZ=min(z1,z2,...,zn)；
maxZ=max(z1,z2,...,zn)；
Wherein (x 1, y1, z 1), (x 2, y2, z 2), (xn, yn, zn) is the vertex coordinates of all the lamp components, n is the number of lamp components in the lamp circuit, and the minimum coordinates and the maximum coordinates of the bounding box of the lamp components are obtained by calculating the minimum coordinates and the maximum coordinates of the vertices of the components;
Generating 8 vertex coordinates of the bounding box according to the minimum coordinates and the maximum coordinates of the bounding box of the lamp component:
v1=(minX,minY,minZ)；
v2=(maxX,minY,minZ)；
v3=(maxX,maxY,minZ)；
v4=(minX,maxY,minZ)；
v5=(minX,minY,maxZ)；
v6=(maxX,minY,maxZ)；
v7=(maxX,maxY,maxZ)；
v8=(minX,maxY,maxZ)；
and generating 12 edge line segments by using the 8 vertex coordinates, constructing a wire frame model of the bounding box, and finally obtaining the three-dimensional bounding box of the lamp component.
Further, the method for generating the space of the influence area of the lamp component comprises the following steps:
Area of influence space of the generation member: if the bounding box of the same type of equipment is closest to the ith bounding box, calculating the minimum distance between the ith bounding box and a plurality of closest bounding boxes under the (x, y) plane coordinate system, taking the central point of the ith bounding box as a relative coordinate 0 point, and taking the C minimum distance along the x-axis and the y-axis of the plane coordinate system as an influence range space; i=1, 2, …, m, m is the number of bounding boxes corresponding to the lamp members; c is a preset coefficient;
if no equipment of the same type exists near the ith bounding box and the nearest side is the space boundary of the room, the influence range space is the position intersected with the bounding space;
The (x, y) coordinates and the z coordinates of the influence area of the three-dimensional bounding box of each lamp component are obtained, the layer height of the closed space is taken, and the influence range space Sj of the lamp component is obtained; j=1, 2, …, n;
Generating an area of influence space of the lamp circuit: summing the influence area spaces of the lamp components in the lamp loop groups to obtain an influence area space S of the lamp loop groups: s=Σsj.
Further, the method for lightening BIM comprises the following steps:
S110, importing a BIM file, analyzing and preprocessing data in the BIM file, and extracting component information, geometric information, material information and texture information;
Step S120, optimizing the extracted component information, geometric information, texture information, and texture information, including:
Step S121, simplifying the geometric information, including removing redundant details, combining similar components and simplifying curved surfaces;
Step S122, optimizing the material information and the texture information, wherein the optimization comprises the steps of reducing the mapping resolution, compressing the texture data and reducing the material types;
Step S123, optimizing the number of the components in the component information according to the use requirement of the BIM, wherein the step includes removing redundant components and combining repeated components;
And step S130, compressing the optimized BIM data.
A system for automatically generating a lamp loop area of influence space based on BIM, comprising:
the model building module is used for building a building information model BIM of the building space, and acquiring an offline data packet after the BIM is light and uploading the offline data packet to the model management module;
The model management module is used for downloading the offline data packet and deploying the offline data packet to the local server, and analyzing the offline data packet to obtain a node hierarchical structure, geometric data and component metadata of the BIM; and means for acquiring a lamp means, which is a type of lamp device, from the node hierarchy, acquiring data of all lamp means from the means metadata, and acquiring vertex data, index data, texture index and spatial geometry information from the geometry data;
the device management module is used for generating a device information ledger of the lamp device according to the data of all the lamp components, establishing association between the lamp device and the lamp components in the BIM through device codes, and storing the association in the database;
The device grouping module is used for dividing a plurality of lamp devices into lamp loop groups and obtaining the component ID of the lamp device in each lamp loop group and corresponding geometric body data;
and the space management module is used for generating a three-dimensional bounding box of the lamp component and then generating an influence area space of the component according to the three-dimensional bounding box of the lamp component.
Compared with the prior art, the invention has the following advantages:
(1) According to the light type component equipment in the BIM model, the invention automatically identifies and generates the space range influenced by the light type component equipment, so that the building illumination space division is realized, the efficiency, the accuracy and the reliability are high, and the workload is reduced.
(2) The invention downloads the model data as the offline data packet, can be deployed to the local server after downloading, and can reduce the network requirements of the platform use as far as possible by adopting the way of deploying the offline data packet, thereby realizing the localization application.
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FIG. 1 is a flow chart of the present invention;
fig. 2 is a system architecture diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples, but embodiments of the present invention are not limited thereto.
Example 1:
Referring to fig. 1, a method for automatically generating a lamp loop influence area space based on BIM includes:
s100, building a building information model BIM of a building space, and obtaining an offline data packet after the BIM is light;
The BIM light weight method comprises the following steps:
Step S110, importing BIM files (such as IFC, RVT and other formats), analyzing and preprocessing data in the BIM files, and extracting component information, geometric information, material information, texture information and the like;
Step S120, optimizing the extracted component information, geometric information, texture information, and texture information, including:
Step S121, performing simplification processing on the geometric information, including removing redundant details, merging similar components, simplifying curved surfaces, and the like;
Step S122, optimizing the material information and the texture information, including reducing the mapping resolution, compressing the texture data, reducing the material variety, and the like;
Step S123, optimizing the number of components in the component information according to the use requirement of the BIM, wherein the steps include removing redundant components and combining repeated components, so that the complexity of the BIM is reduced;
And step S130, compressing the optimized BIM data. The data file size is reduced using efficient data formats and compression algorithms. Suitable data formats such as gmtf, jason, etc. may be selected for quick loading and display in different platforms and applications.
After light weight conversion, the model data can be downloaded as an offline data packet, and can be deployed to a local server after downloading, and the requirement of a platform for network use can be reduced as much as possible by adopting an offline data packet deployment mode, so that localized application is realized.
The offline data packet comprises the following contents:
Scene metadata (SCENE METADATA): version information, unit system, coordinate system, BIM project information, model author, etc.
Node Hierarchy (Node Hierarchy): the model object in the scene has the properties of hierarchical tree relation, id, name, transformation matrix and the like.
Geometry Data): vertex data, such as position, normal line, texture coordinates and the like; index data; indexing materials; spatial geometry information: spatial vertex coordinates, and the like.
Texture data (MATERIAL DATA): material properties: color, transparency, smoothness, etc.; mapping file index.
Component metadata (Component Metadata): BIM component ID, family type, family name, class code, component parameters and attributes, which may include parameters that a modeler has customized in the model, such as device code, installation information, design information, etc.
Resource index (Resource Indices): map file list, uri, shader program index.
Additional Data (Auxiliary Data): camera view data, light settings, animation key frames, etc.
Step S200, downloading an offline data packet, deploying the offline data packet to a local server, and analyzing the offline data packet to obtain a node hierarchical structure, geometric data and component metadata of the BIM;
Step S300, a component of which the type is the lamp equipment, namely a lamp component is obtained from the node hierarchy structure, and data of all lamp components are obtained in component metadata, wherein the data comprises component ID, family type, family name, classification code, component parameter, attribute and the like in BIM. Obtaining vertex data (including position, normal line, texture coordinates and the like), index data, material index and space geometric information (including data such as space vertex coordinates and the like) from the geometric volume data;
Step S400, automatically generating an equipment information ledger of the lamp equipment according to the data of all the lamp components, establishing association between the lamp equipment and the lamp components in the BIM through equipment codes, and storing the association in a database;
step S500, dividing a plurality of lamp devices into lamp loop groups, wherein one group represents one loop, obtaining the component ID and corresponding geometric data of the lamp devices in each lamp loop group, generating a three-dimensional bounding box of the lamp component, and generating an influence region space of the component according to the three-dimensional bounding box of the lamp component.
Further, the geometric body data comprise coordinates of the component, vertex data, a three-dimensional bounding box and space vertex coordinates of a space where the component is located, and boundary coordinates of a room are extracted according to the space vertex coordinates;
the method for generating the three-dimensional bounding box of the lamp component comprises the following steps:
Generating bounding boxes of each lamp device according to vertex data of the lamp components, wherein three-dimensional coordinates of the lamp components are (x, y, z), minimum coordinates of the bounding boxes of the lamp components are (minX, minY, minZ), maximum coordinates of the bounding boxes are (maxX, maxY, maxZ), and a formula for generating the bounding boxes is as follows:
minX=min(x1,x2,...,xn)；
maxX=max(x1,x2,...,xn)；
minY=min(y1,y2,...,yn)；
maxY=max(y1,y2,...,yn)；
minZ=min(z1,z2,...,zn)；
maxZ=max(z1,z2,...,zn)；
Wherein (x 1, y1, z 1), (x 2, y2, z 2), (xn, yn, zn) is the vertex coordinates of all the lamp components, n is the number of lamp components in the lamp circuit, and the minimum coordinates and the maximum coordinates of the bounding box of the lamp components are obtained by calculating the minimum coordinates and the maximum coordinates of the vertices of the components;
Generating 8 vertex coordinates of the bounding box according to the minimum coordinates and the maximum coordinates of the bounding box of the lamp component:
v1=(minX,minY,minZ)；
v2=(maxX,minY,minZ)；
v3=(maxX,maxY,minZ)；
v4=(minX,maxY,minZ)；
v5=(minX,minY,maxZ)；
v6=(maxX,minY,maxZ)；
v7=(maxX,maxY,maxZ)；
v8=(minX,maxY,maxZ)；
and generating 12 edge line segments by using the 8 vertex coordinates, constructing a wire frame model of the bounding box, and finally obtaining the three-dimensional bounding box of the lamp component.
Further, the method for generating the space of the influence area of the lamp component comprises the following steps:
Area of influence space of the generation member: if the bounding box of the same type of equipment is closest to the ith bounding box, calculating the minimum distance between the ith bounding box and a plurality of closest bounding boxes under the (x, y) plane coordinate system, taking the central point of the ith bounding box as a relative coordinate 0 point, and taking 1/2 of the minimum distance along the x-axis and the y-axis of the plane coordinate system as an influence range space; i=1, 2, …, m, m is the number of bounding boxes corresponding to the lamp members;
if no equipment of the same type exists near the ith bounding box and the nearest side is the space boundary of the room, the influence range space is the position intersected with the bounding space;
The (x, y) coordinates and the z coordinates of the influence area of the three-dimensional bounding box of each lamp component are obtained, the layer height of the closed space is taken, and the influence range space Sj of the lamp component is obtained; j=1, 2, …, n;
Generating an area of influence space of the lamp circuit: summing the influence area spaces of the lamp components in the lamp loop groups to obtain an influence area space S of the lamp loop groups: s=Σsj. The area of influence space is the area of influence of each lamp member in a certain space.
Further, the method for lightening BIM comprises the following steps:
Step S110, importing BIM files (such as IFC, RVT and other formats), analyzing and preprocessing data in the BIM files, and extracting component information, geometric information, material information, texture information and the like;
Step S120, optimizing the extracted component information, geometric information, texture information, and texture information, including:
Step S121, performing simplification processing on the geometric information, including removing redundant details, merging similar components, simplifying curved surfaces, and the like;
Step S122, optimizing the material information and the texture information, including reducing the mapping resolution, compressing the texture data, reducing the material variety, and the like;
Step S123, optimizing the number of components in the component information according to the use requirement of the BIM, wherein the steps include removing redundant components and combining repeated components, so that the complexity of the BIM is reduced;
And step S130, compressing the optimized BIM data. The data file size is reduced using efficient data formats and compression algorithms. Suitable data formats such as gmtf, jason, etc. may be selected for quick loading and display in different platforms and applications.
After light weight conversion, the model data can be downloaded as an offline data packet, and can be deployed to a local server after downloading, and the requirement of a platform for network use can be reduced as much as possible by adopting an offline data packet deployment mode, so that localized application is realized.
Example 2:
referring to fig. 2, a system for automatically generating a lamp loop area of influence space based on BIM, comprising:
the model building module is used for building a building information model BIM of the building space, and acquiring an offline data packet after the BIM is light and uploading the offline data packet to the model management module;
The model management module is used for downloading the offline data packet and deploying the offline data packet to the local server, and analyzing the offline data packet to obtain a node hierarchical structure, geometric data and component metadata of the BIM; and means for acquiring a lamp means, which is a type of lamp device, from the node hierarchy, acquiring data of all lamp means from the means metadata, and acquiring vertex data, index data, texture index and spatial geometry information from the geometry data;
the device management module is used for generating a device information ledger of the lamp device according to the data of all the lamp components, establishing association between the lamp device and the lamp components in the BIM through device codes, and storing the association in the database;
The device grouping module is used for dividing a plurality of lamp devices into lamp loop groups and obtaining the component ID of the lamp device in each lamp loop group and corresponding geometric body data;
and the space management module is used for generating a three-dimensional bounding box of the lamp component and then generating an influence area space of the component according to the three-dimensional bounding box of the lamp component.
Further comprises:
The command management module is used for importing the commands of the equipment groups, storing the commands in the platform database after importing the commands, and associating the commands with the equipment groups so as to realize information acquisition and control of the equipment groups.
Protocol acquisition module: the system is used for realizing data acquisition of equipment, can analyze different types of protocols (such as MODBUS, message queue telemetry transmission MQTT, BACnet and the like), is associated with the command, is connected with a lamp equipment control cabinet to realize data acquisition, and is provided with timing tasks to periodically execute data acquisition operation. The system has the function of protocol analysis specification, and can accurately analyze various protocol formats, thereby effectively collecting equipment data and transmitting the equipment data to a designated data processing system. Thus, the user can conveniently monitor the data of the loop state of the lamp, and the real-time monitoring of the state of the lamp loop is realized.
An intelligent lighting module: the system is used for managing an illumination loop (lamp loop) on the basis of a three-dimensional model of a building space, and comprises floor illumination space display, real-time state monitoring of the illumination loop, and on/off and brightness lamp control of the illumination loop, and specifically:
floor illumination space display: the lamp loop influence range space associated with the floor can be highlighted;
monitoring the real-time state of a lighting loop: when a certain lamp loop state is on, the lamp loop influence range space is represented by green; when the lamp loop state is off, the lamp loop influence range space is represented by gray;
Lighting loop control: clicking the light loop influence range space can pop up the control panel, clicking different control button, can control the on, off, luminance, colour temperature etc. of lamp.
Although the application has been described herein with reference to the above-described illustrative embodiments thereof, the foregoing embodiments are merely preferred embodiments of the present application, and it should be understood that the embodiments of the present application are not limited to the above-described embodiments, and that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope and spirit of the principles of this disclosure.
Claims (5)
1. A method for automatically generating a lamp loop area of influence space based on BIM, comprising:
s100, building a building information model BIM of a building space, and obtaining an offline data packet after the BIM is light;
step S200, downloading an offline data packet, deploying the offline data packet to a local server, and analyzing the offline data packet to obtain a node hierarchical structure, geometric data and component metadata of the BIM;
Step S300, obtaining a component of the type of the lamp equipment, namely a lamp component, from the node hierarchy structure, obtaining data of all lamp components from component metadata, and obtaining vertex data, index data, material indexes and space geometric information from geometric data;
Step S400, generating an equipment information ledger of the lamp equipment according to the data of all the lamp components, establishing association between the lamp equipment and the lamp components in the BIM through equipment codes, and storing the association in a database;
Step S500, dividing a plurality of lamp devices into lamp loop groups, obtaining component Identity (ID) of the lamp devices in each lamp loop group and corresponding geometric data, generating a three-dimensional bounding box of the lamp components, and generating an influence region space of the components according to the three-dimensional bounding box of the lamp components.
2. The method for automatically generating a lamp loop affected area space based on BIM according to claim 1, wherein the geometric volume data includes coordinates of a component, vertex data, a three-dimensional bounding box and space vertex coordinates of a space in which the component is located, and boundary coordinates of a room are extracted according to the space vertex coordinates;
the method for generating the three-dimensional bounding box of the lamp component comprises the following steps:
Generating bounding boxes of each lamp device according to vertex data of the lamp components, wherein three-dimensional coordinates of the lamp components are (x, y, z), minimum coordinates of the bounding boxes of the lamp components are (minX, minY, minZ), maximum coordinates of the bounding boxes are (maxX, maxY, maxZ), and a formula for generating the bounding boxes is as follows:
minX=min(x1,x2,...,xn)；
maxX=max(x1,x2,...,xn)；
minY=min(y1,y2,...,yn)；
maxY=max(y1,y2,...,yn)；
minZ=min(z1,z2,...,zn)；
maxZ=max(z1,z2,...,zn)；
Wherein (x 1, y1, z 1), (x 2, y2, z 2), (xn, yn, zn) is the vertex coordinates of all the lamp components, n is the number of lamp components in the lamp circuit, and the minimum coordinates and the maximum coordinates of the bounding box of the lamp components are obtained by calculating the minimum coordinates and the maximum coordinates of the vertices of the components;
Generating 8 vertex coordinates of the bounding box according to the minimum coordinates and the maximum coordinates of the bounding box of the lamp component:
v1=(minX,minY,minZ)；
v2=(maxX,minY,minZ)；
v3=(maxX,maxY,minZ)；
v4=(minX,maxY,minZ)；
v5=(minX,minY,maxZ)；
v6=(maxX,minY,maxZ)；
v7=(maxX,maxY,maxZ)；
v8=(minX,maxY,maxZ)；
and generating 12 edge line segments by using the 8 vertex coordinates, constructing a wire frame model of the bounding box, and finally obtaining the three-dimensional bounding box of the lamp component.
3. The method of automatically generating a lamp loop area of influence space based on BIM of claim 2, wherein the method of generating a lamp member area of influence space is:
Area of influence space of the generation member: if the bounding box of the same type of equipment is closest to the ith bounding box, calculating the minimum distance between the ith bounding box and a plurality of closest bounding boxes under the (x, y) plane coordinate system, taking the central point of the ith bounding box as a relative coordinate 0 point, and taking the C minimum distance along the x-axis and the y-axis of the plane coordinate system as an influence range space; i=1, 2, …, m, m is the number of bounding boxes corresponding to the lamp members; c is a preset coefficient;
if no equipment of the same type exists near the ith bounding box and the nearest side is the space boundary of the room, the influence range space is the position intersected with the bounding space;
The (x, y) coordinates and the z coordinates of the influence area of the three-dimensional bounding box of each lamp component are obtained, the layer height of the closed space is taken, and the influence range space Sj of the lamp component is obtained; j=1, 2, …, n;
Generating an area of influence space of the lamp circuit: summing the influence area spaces of the lamp components in the lamp loop groups to obtain an influence area space S of the lamp loop groups: s=Σsj.
4. The method for automatically generating a lamp loop area of influence space based on BIM according to claim 1, wherein the method for lightening BIM is:
S110, importing a BIM file, analyzing and preprocessing data in the BIM file, and extracting component information, geometric information, material information and texture information;
Step S120, optimizing the extracted component information, geometric information, texture information, and texture information, including:
Step S121, simplifying the geometric information, including removing redundant details, combining similar components and simplifying curved surfaces;
Step S122, optimizing the material information and the texture information, wherein the optimization comprises the steps of reducing the mapping resolution, compressing the texture data and reducing the material types;
Step S123, optimizing the number of the components in the component information according to the use requirement of the BIM, wherein the step includes removing redundant components and combining repeated components;
And step S130, compressing the optimized BIM data.
5. A system for automatically generating a lamp loop area of influence space based on BIM, comprising:
the model building module is used for building a building information model BIM of the building space, and acquiring an offline data packet after the BIM is light and uploading the offline data packet to the model management module;
The model management module is used for downloading the offline data packet and deploying the offline data packet to the local server, and analyzing the offline data packet to obtain a node hierarchical structure, geometric data and component metadata of the BIM; and means for acquiring a lamp means, which is a type of lamp device, from the node hierarchy, acquiring data of all lamp means from the means metadata, and acquiring vertex data, index data, texture index and spatial geometry information from the geometry data;
the device management module is used for generating a device information ledger of the lamp device according to the data of all the lamp components, establishing association between the lamp device and the lamp components in the BIM through device codes, and storing the association in the database;
The device grouping module is used for dividing a plurality of lamp devices into lamp loop groups and obtaining the component ID of the lamp device in each lamp loop group and corresponding geometric body data;
and the space management module is used for generating a three-dimensional bounding box of the lamp component and then generating an influence area space of the component according to the three-dimensional bounding box of the lamp component.
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