CN116738705B - Digital twin model generation method and system applied to fire emergency lighting - Google Patents

Abstract

The invention provides a digital twin model generation method and a system applied to fire emergency illumination, which are characterized in that environmental state data of an emergency illumination area, working state data of emergency illumination equipment arranged in the emergency illumination area and parameter data of the emergency illumination equipment are obtained, a digital twin model of the emergency illumination area is generated on the basis of a three-dimensional model of the emergency illumination area according to the data, a control instruction for switching the emergency illumination equipment to an emergency illumination mode is received, an emergency condition corresponding to the control instruction is determined, illumination data of the emergency illumination area and the emergency condition are obtained, the illumination data and the digital twin model are input into a ray tracing engine to update the ray distribution of the digital twin model, and a visual graph of the digital twin model is output.

Description

Digital twin model generation method and system applied to fire emergency lighting

Technical Field

The invention relates to the technical field of digital twinning, in particular to a digital twinning model generation method and system applied to fire emergency lighting.

Background

Emergency lighting devices are important fire-fighting facilities, which are not used in daily life, but are critical facilities for guaranteeing the life and property safety of people in the event of serious fire-fighting events, and are required to be configured in public areas such as public exits, evacuation channels, main indoor channels, halls, and conference rooms used independently as units or individuals, and in personnel-intensive public places such as parking lots, squares, parks, underground channels, underground business places, and the like. Since the number of emergency lighting devices is huge and the emergency lighting devices cannot be used in non-emergency situations, a large amount of manpower and material resources are required for checking and maintaining all the emergency lighting devices, and therefore even if the related personnel are required to regularly check and maintain the emergency lighting devices, a large amount of emergency lighting devices are damaged due to the lack of maintenance for a long time and cannot be used. In addition, the optional installation of the emergency lighting device is the result of the design of engineers according to experience, and the brightness and the lighting range of the emergency lighting device cannot be known whether to meet the use requirement in the emergency situation without practical inspection, so the design of the current emergency lighting system still has a plurality of defects.

Disclosure of Invention

Based on the problems, the invention provides a digital twin model generation method and a digital twin model generation system applied to fire emergency lighting, which can realize the inspection, test, maintenance and optimization of emergency lighting equipment with lower cost.

In view of this, a first aspect of the present invention proposes a digital twin model generation method applied to fire emergency lighting, comprising:

acquiring environmental state data of an emergency lighting area, working state data of emergency lighting equipment arranged in the emergency lighting area and parameter data of the emergency lighting equipment;

generating a digital twin model of the emergency lighting area according to the environmental state data of the emergency lighting area, the working state data and the parameter data of the emergency lighting equipment on the basis of the stereoscopic model of the emergency lighting area;

receiving a control instruction for switching the emergency lighting equipment to an emergency lighting mode;

determining an emergency situation corresponding to the control instruction;

acquiring illumination data of the emergency illumination area and related to the emergency situation, wherein the illumination data comprises type, number, position and brightness data of light sources of the emergency illumination area;

Inputting the illumination data and the digital twin model into a ray tracing engine to update the ray distribution of the digital twin model;

and outputting a visual graph of the digital twin model.

Further, in the above digital twin model generating method applied to fire emergency lighting, before the step of acquiring the environmental status data of the emergency lighting area, the working status data of the emergency lighting devices arranged in the emergency lighting area, and the parameter data of the emergency lighting devices, the method further includes:

reading building information model data of a target place from a database, wherein the building information model data comprises building component geometric information, building component material information, building space information, building decoration information and building system information of the target place;

determining an installation location of an emergency lighting device in the target site;

determining a building space corresponding to the installation position of the emergency lighting equipment as an emergency lighting area according to the building space information;

and constructing a stereoscopic model of the emergency lighting area based on the building component geometric information, the building component material information and the building decoration information of the emergency lighting area.

Further, in the method for generating a digital twin model applied to fire emergency lighting, the step of constructing a stereoscopic model of the emergency lighting area based on the building component geometric information, the building component material information and the building decoration information of the emergency lighting area specifically includes:

determining a base building element and a functional element embedded in the base building element constituting a building space of the emergency lighting area, the base building element comprising a wall element and a floor element;

obtaining geometric information and material information of the basic building component and the functional component;

generating a stereoscopic model body of the building space based on geometric information and material information of the basic building component and the functional component;

arranging decorations in the stereoscopic model body of the building space based on the building decoration information to form a stereoscopic model of the emergency lighting area.

Further, in the method for generating a digital twin model applied to fire emergency lighting, the step of generating the digital twin model of the emergency lighting area according to the environmental state data of the emergency lighting area, the working state data and the parameter data of the emergency lighting equipment on the basis of the stereoscopic model of the emergency lighting area specifically includes:

An interaction control interface of the digital twin model is constructed, wherein the interaction control interface is an interface for the digital twin model to acquire data from a sensor in the emergency illumination area and the emergency illumination equipment and control the emergency illumination equipment;

acquiring environmental state data of the emergency lighting area, working state data and parameter data of the emergency lighting equipment through the interaction control interface;

and updating the stereoscopic model in real time based on the environmental state data of the emergency lighting area and the working state data and the parameter data of the emergency lighting equipment to obtain a digital twin model of the emergency lighting area.

Further, in the method for generating a digital twin model applied to fire emergency lighting, after the step of receiving a control instruction for switching the emergency lighting device to an emergency lighting mode, the method further includes:

judging whether the control instruction is a fire exercise instruction or not;

when the control instruction is a fire exercise instruction, scene setting data of emergency conditions corresponding to the fire exercise instruction are obtained, wherein the scene setting data comprise types of the emergency conditions, grades of the emergency conditions, occurrence time of the emergency conditions and occurrence positions of the emergency conditions;

And configuring working state parameters of the emergency lighting equipment based on the scene setting data.

Further, in the method for generating a digital twin model applied to fire emergency lighting, the step of acquiring lighting data related to the emergency lighting area and the emergency situation specifically includes:

acquiring light source information in a building space corresponding to the emergency lighting area from the building information model data, wherein the light source information comprises information of conventional lighting equipment, emergency lighting equipment and environmental light sources in the building space;

judging whether a light shielding object exists in the building space according to the building decoration information and the scene setting data;

when a light shielding object is arranged in the building space, acquiring information of the light shielding object;

and determining the light source information in the building space and the information of the light shielding object as the illumination data.

Further, in the method for generating a digital twin model applied to fire emergency lighting, the step of configuring the working state parameters of the emergency lighting device based on the scene setting data specifically includes:

Acquiring a mains supply state of the emergency lighting area;

judging whether the conventional lighting equipment is in a normal working state according to the commercial power supply state and the environmental state data of the emergency lighting area;

when the conventional lighting equipment is not in a normal working state, acquiring light source information of an ambient light source;

and configuring working state parameters of the emergency lighting equipment according to the light source information of the ambient light source.

Further, in the method for generating a digital twin model applied to fire emergency lighting, after the step of inputting the lighting data and the digital twin model into a ray tracing engine to update the ray distribution of the digital twin model, the method further includes:

acquiring an emergency evacuation route of the target place;

determining an emergency lighting area passing on the emergency evacuation route;

determining emergency lighting coverage on the emergency evacuation route based on the light distribution of the digital twin model;

dividing the area passing through the emergency evacuation route into a light coverage area and an uncovered area according to the emergency lighting coverage condition on the emergency evacuation route;

determining the uncovered area as a hazardous area;

The step of outputting the visual graph of the digital twin model specifically comprises the following steps:

the hazard zone is identified in the digital twinning model.

Further, in the method for generating a digital twin model applied to fire emergency lighting, after the step of inputting the lighting data and the digital twin model into a ray tracing engine to update the ray distribution of the digital twin model, the method further includes:

identifying a low brightness region formed by the light obscuration;

acquiring the area of the low-brightness area;

and when the area of the low-brightness area is larger than a preset early warning threshold value, determining the low-brightness area as a dangerous area.

A second aspect of the present invention proposes a digital twin model generation system applied to fire emergency lighting, comprising a modeling server for generating a digital twin model of an emergency lighting area, an emergency lighting device arranged in the emergency lighting area for providing emergency lighting to the emergency lighting area, a device information server for providing information of the emergency lighting device, a sensor arranged in the emergency lighting area for collecting environmental state data of the emergency lighting area, and a fire management server for fire safety management, the modeling server, the emergency lighting device, the device information server, the sensor being in communication connection with the fire management server, the fire safety management server being for obtaining environmental state data of the emergency lighting area through the sensor, obtaining operational state data of the emergency lighting device through the emergency lighting device, after obtaining parameter data of the emergency lighting device through the device information server, transmitting the environmental state data of the emergency lighting area, the operational state data of the emergency lighting device and the parameter data to the modeling server to cause the modeling server to be configured as the digital twin model, the modeling server:

Acquiring environmental state data of an emergency lighting area, working state data of emergency lighting equipment arranged in the emergency lighting area and parameter data of the emergency lighting equipment;

generating a digital twin model of the emergency lighting area according to the environmental state data of the emergency lighting area, the working state data and the parameter data of the emergency lighting equipment on the basis of the stereoscopic model of the emergency lighting area;

receiving a control instruction for switching the emergency lighting equipment to an emergency lighting mode;

determining an emergency situation corresponding to the control instruction;

acquiring illumination data of the emergency illumination area and related to the emergency situation, wherein the illumination data comprises type, number, position and brightness data of light sources of the emergency illumination area;

inputting the illumination data and the digital twin model into a ray tracing engine to update the ray distribution of the digital twin model;

and outputting a visual graph of the digital twin model.

The invention provides a digital twin model generation method and a system applied to fire emergency illumination, which are characterized in that environmental state data of an emergency illumination area, working state data of emergency illumination equipment arranged in the emergency illumination area and parameter data of the emergency illumination equipment are obtained, a digital twin model of the emergency illumination area is generated on the basis of a three-dimensional model of the emergency illumination area according to the data, a control instruction for switching the emergency illumination equipment to an emergency illumination mode is received, an emergency condition corresponding to the control instruction is determined, illumination data of the emergency illumination area and the emergency condition are obtained, the illumination data and the digital twin model are input into a ray tracing engine to update the ray distribution of the digital twin model, and a visual graph of the digital twin model is output.

Drawings

FIG. 1 is a flow chart of a digital twinning model generation method for fire emergency lighting according to one embodiment of the present invention;

FIG. 2 is a schematic block diagram of a digital twinning model generation system for fire emergency lighting according to one embodiment of the present invention.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, the term "plurality" means two or more, unless explicitly defined otherwise, the orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. The terms "coupled," "mounted," "secured," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of this specification, the terms "one embodiment," "some implementations," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

A digital twin model generation method and system for fire emergency lighting according to some embodiments of the present invention are described below with reference to the accompanying drawings.

As shown in fig. 1, a first aspect of the present invention proposes a digital twin model generation method applied to fire emergency lighting, including:

acquiring environmental state data of an emergency lighting area, working state data of emergency lighting equipment arranged in the emergency lighting area and parameter data of the emergency lighting equipment;

generating a digital twin model of the emergency lighting area according to the environmental state data of the emergency lighting area, the working state data and the parameter data of the emergency lighting equipment on the basis of the stereoscopic model of the emergency lighting area;

Receiving a control instruction for switching the emergency lighting equipment to an emergency lighting mode;

determining an emergency situation corresponding to the control instruction;

acquiring illumination data of the emergency illumination area and related to the emergency situation, wherein the illumination data comprises type, number, position and brightness data of light sources of the emergency illumination area;

inputting the illumination data and the digital twin model into a ray tracing engine to update the ray distribution of the digital twin model;

and outputting a visual graph of the digital twin model.

In particular, the interior space of the building is divided into functional areas according to the functions thereof, such as rooms, halls, toilets, hallways, stairs, machine rooms, archives, warehouses, etc. Not all functional areas in a building need to be provided with emergency lighting devices, and generally, in the evacuation route, the passageway and the safety exit thereof, such as a corridor, a stair, etc., the areas where electric facilities are placed, such as a machine room, a monitoring room, etc., and the hidden areas, such as a basement, etc., are provided with emergency lighting devices, and other areas are optionally provided with or not provided with emergency lighting devices according to actual situations. In the technical scheme of the invention, the functional area of the building, in which the emergency lighting device is installed, is determined as an emergency lighting area.

The environment state data of the emergency lighting area comprise environment data and personnel data of the emergency lighting area, the environment data of the emergency lighting area comprise indoor and outdoor illumination data, temperature data, humidity data, air pressure data, wind speed data and the like of the emergency lighting area, and the personnel data comprise personnel number data, personnel distribution data, personnel movement data and the like in the emergency lighting area. In the technical scheme of the invention, the environmental state data of the emergency illumination area can be acquired through a sensor, a camera and the like which are arranged in the emergency illumination area.

The working state data of the emergency lighting equipment comprise the data of the switching state, the brightness value, the working mode, the residual electric quantity and the like. The parameter data of the emergency lighting equipment comprise color temperature, luminous flux, beam angle, battery capacity, a light control mode and the like of the emergency lighting equipment, wherein the light control mode comprises a common switch mode, a timing switch mode, an environment induction mode and a central control mode.

In the technical scheme of the invention, the control instruction can be a control instruction automatically sent by a fire control system after an emergency situation is detected, or can be a remote control instruction sent to the emergency lighting equipment in a control center by a background control personnel according to actual needs such as a fire control exercise and the like. Such emergency situations include sudden mains supply interruption or situations where a fire, earthquake, flood, tornado, etc. may damage the building structure and in particular may cause mains supply interruption.

In an emergency lighting mode, the emergency lighting device enters a lit state using a backup power source. By configuring control instructions corresponding to different emergency situations, the digital twin model can be used for simulating the illumination situations under different emergency situations, so that effective reference data are provided for the design, installation, detection, control, optimization, fault diagnosis and the like of the emergency lighting equipment.

Further, after inputting the illumination data and the digital twin model into a ray tracing engine to update the ray distribution of the digital twin model, the method further comprises:

acquiring light distribution data of the emergency lighting area through a sensor;

matching the light distribution data of the emergency lighting area with the light distribution of the digital twin model;

and judging the attenuation condition of the emergency lighting equipment of the emergency lighting area according to the matching result.

Further, in the above digital twin model generating method applied to fire emergency lighting, before the step of acquiring the environmental status data of the emergency lighting area, the working status data of the emergency lighting devices arranged in the emergency lighting area, and the parameter data of the emergency lighting devices, the method further includes:

Reading building information model data of a target place from a database, wherein the building information model data comprises building component geometric information, building component material information, building space information, building decoration information and building system information of the target place;

determining an installation location of an emergency lighting device in the target site;

determining a building space corresponding to the installation position of the emergency lighting equipment as an emergency lighting area according to the building space information;

and constructing a stereoscopic model of the emergency lighting area based on the building component geometric information, the building component material information and the building decoration information of the emergency lighting area.

Specifically, the target place may be a building or place such as a office building, a residential building, a library, a train station, a park, a parking lot, a square, or the like, which is an office place, a residential place, a provider business, or a public service.

The building component is each component of a building main body forming the target place, the building component geometric information comprises geometric information such as size, shape, position and the like of the building component, the building component material information comprises material information such as material, color, glossiness and the like of the building component, the building space information comprises information such as names, purposes, areas, heights, walls, floors and the like of various spaces in the building, the building decoration information comprises information such as various decorations, furnishings, furniture and the like in the building, and the building system information comprises system information such as electric power, ventilation, water supply and drainage, illumination and the like in the building.

The building system information of the building information model data contains the installation position of the emergency lighting device, namely, the installation position of the emergency lighting device in the target site is determined, specifically, the installation position of the emergency lighting device is obtained from the building information model data.

Further, in the method for generating a digital twin model applied to fire emergency lighting, the step of constructing a stereoscopic model of the emergency lighting area based on the building component geometric information, the building component material information and the building decoration information of the emergency lighting area specifically includes:

determining a base building element and a functional element embedded in the base building element constituting a building space of the emergency lighting area, the base building element comprising a wall element and a floor element;

obtaining geometric information and material information of the basic building component and the functional component;

generating a stereoscopic model body of the building space based on geometric information and material information of the basic building component and the functional component;

arranging decorations in the stereoscopic model body of the building space based on the building decoration information to form a stereoscopic model of the emergency lighting area.

In the technical solution of the above embodiment, for a single-story or multi-story building, the floor members each include a floor member and a ceiling member. The functional members embedded in the base building member include a door member, a window member, an exhaust fan member, and the like.

Further, in the method for generating a digital twin model applied to fire emergency lighting, the step of generating the digital twin model of the emergency lighting area according to the environmental state data of the emergency lighting area, the working state data and the parameter data of the emergency lighting equipment on the basis of the stereoscopic model of the emergency lighting area specifically includes:

an interaction control interface of the digital twin model is constructed, wherein the interaction control interface is an interface for the digital twin model to acquire data from a sensor in the emergency illumination area and the emergency illumination equipment and control the emergency illumination equipment;

acquiring environmental state data of the emergency lighting area, working state data and parameter data of the emergency lighting equipment through the interaction control interface;

and updating the stereoscopic model in real time based on the environmental state data of the emergency lighting area and the working state data and the parameter data of the emergency lighting equipment to obtain a digital twin model of the emergency lighting area.

It should be noted that the interactive control interface of the digital twin model is also connected with electric power facilities, water supply and drainage facilities, ventilation facilities, etc. in the emergency lighting area to acquire electric power data, water supply and drainage data, and ventilation data in the emergency lighting area, and controls the electric power facilities, water supply and drainage facilities, and ventilation facilities of the emergency lighting area through the interactive control interface.

Further, in the method for generating a digital twin model applied to fire emergency lighting, after the step of receiving a control instruction for switching the emergency lighting device to an emergency lighting mode, the method further includes:

judging whether the control instruction is a fire exercise instruction or not;

when the control instruction is a fire exercise instruction, scene setting data of emergency conditions corresponding to the fire exercise instruction are obtained, wherein the scene setting data comprise types of the emergency conditions, grades of the emergency conditions, occurrence time of the emergency conditions and occurrence positions of the emergency conditions;

and configuring working state parameters of the emergency lighting equipment based on the scene setting data.

Specifically, the type of the emergency situation refers to one or more of sudden mains power interruption, fire, earthquake, flood, tornado and the like. The level of the emergency situation may be divided according to the intensity of the emergency situation or the consequences that the emergency situation may have. The time of emergency can be divided into daytime and nighttime simply, or can be set specifically to a certain moment according to specific implementation conditions.

The working state parameters of the emergency lighting equipment are configurable parameters in the working state data of the emergency lighting equipment, and the working state parameters comprise the switching state, the brightness value, the working mode and the like of the emergency lighting equipment. The working modes of the emergency lighting device comprise a normal-light mode, a timing mode, a sensing mode, a manual mode and the like.

Further, in the method for generating a digital twin model applied to fire emergency lighting, the step of acquiring lighting data related to the emergency lighting area and the emergency situation specifically includes:

acquiring light source information in a building space corresponding to the emergency lighting area from the building information model data, wherein the light source information comprises information of conventional lighting equipment, emergency lighting equipment and environmental light sources in the building space;

judging whether a light shielding object exists in the building space according to the building decoration information and the scene setting data;

when a light shielding object is arranged in the building space, acquiring information of the light shielding object;

and determining the light source information in the building space and the information of the light shielding object as the illumination data.

In the technical scheme of the invention, the environment light source is a functional structure capable of enabling external light to enter the building space on the three-dimensional model of the emergency lighting area, and the functional structure comprises a door body component, a window body component, an exhaust fan component and the like.

The light shielding object comprises ornaments in the emergency illumination area, such as a cabinet, a partition board, plants, a storage rack, a table and a chair, other household furniture, dense smoke, dust, water vapor, chemicals leaked in special occasions and the like.

Further, in the method for generating a digital twin model applied to fire emergency lighting, the step of configuring the working state parameters of the emergency lighting device based on the scene setting data specifically includes:

acquiring a mains supply state of the emergency lighting area;

judging whether the conventional lighting equipment is in a normal working state according to the commercial power supply state and the environmental state data of the emergency lighting area;

when the conventional lighting equipment is not in a normal working state, acquiring light source information of an ambient light source;

and configuring working state parameters of the emergency lighting equipment according to the light source information of the ambient light source.

Specifically, the light source information in the building space includes the position, brightness, color temperature and light emitting mode of each light source.

And the communication with the power equipment in the emergency lighting area can be realized through the interactive control interface in the digital twin model so as to obtain the working state of the power equipment, including the power supply state of the emergency lighting area. By combining the power supply state of the emergency lighting area and the brightness sensor and the like in the emergency lighting area, whether the conventional lighting equipment of the emergency lighting area is in a normal working state can be judged.

When the emergency lighting area is in the condition that the ambient light is sufficient, the emergency lighting equipment can be controlled to be in a closed state or a low-brightness working state through the interaction control interface so as to prolong the service time of the standby power supply.

When the emergency lighting area is not illuminated by ambient light or the ambient light brightness is extremely low, the emergency lighting equipment needs to be controlled by the interactive control interface to provide enough brightness for the emergency lighting area so as to ensure the safe evacuation of people in emergency.

Further, in the method for generating a digital twin model applied to fire emergency lighting, after the step of inputting the lighting data and the digital twin model into a ray tracing engine to update the ray distribution of the digital twin model, the method further includes:

Acquiring an emergency evacuation route of the target place;

determining an emergency lighting area passing on the emergency evacuation route;

determining emergency lighting coverage on the emergency evacuation route based on the light distribution of the digital twin model;

dividing the area passing through the emergency evacuation route into a light coverage area and an uncovered area according to the emergency lighting coverage condition on the emergency evacuation route;

determining the uncovered area as a hazardous area;

the step of outputting the visual graph of the digital twin model specifically comprises the following steps:

the hazard zone is identified in the digital twinning model.

Further, in the method for generating a digital twin model applied to fire emergency lighting, after the step of inputting the lighting data and the digital twin model into a ray tracing engine to update the ray distribution of the digital twin model, the method further includes:

identifying a low brightness region formed by the light obscuration;

acquiring the area of the low-brightness area;

and when the area of the low-brightness area is larger than a preset early warning threshold value, determining the low-brightness area as a dangerous area.

According to the technical scheme of the embodiment, the digital twin model is used for simulating emergency lighting conditions under different emergency conditions in the exercise mode, dangerous areas on the emergency evacuation route are identified, the emergency lighting equipment can be checked, tested and maintained at low cost, and when the emergency lighting equipment is in a fault or low-power state, the emergency lighting equipment can be maintained or replaced in time, so that the fire safety of a target place is guaranteed.

In some embodiments of the present invention, after the step of receiving a control instruction to switch the emergency lighting device to an emergency lighting mode, the method further comprises:

when the control instruction is automatically sent by the fire control system after the emergency condition is detected, acquiring power data, water supply and drainage data, ventilation data, environment state data and working state data and parameter data of the emergency lighting equipment of the emergency lighting area;

and updating the digital twin model based on the power data, the water supply and drainage data, the ventilation data, the environment state data, the working state data and the parameter data of the emergency lighting equipment of the emergency lighting area.

As shown in fig. 2, a second aspect of the present invention proposes a digital twin model generation system applied to fire emergency lighting, comprising a modeling server for generating a digital twin model of an emergency lighting area, an emergency lighting device arranged in the emergency lighting area for providing emergency lighting to the emergency lighting area, a device information server for providing information of the emergency lighting device, a sensor arranged in the emergency lighting area for collecting environmental state data of the emergency lighting area, and a fire management server for fire safety management, the modeling server, the emergency lighting device, the device information server, the sensor being in communication connection with the fire management server, the fire safety management server being configured to obtain environmental state data of the emergency lighting area through the sensor, obtain operational state data of the emergency lighting device through the emergency lighting device, obtain parameter data of the emergency lighting device through the device information server, and send the environmental state data of the emergency lighting device, the operational state data of the emergency lighting device, and the parameter data of the emergency lighting device to the modeling server, the modeling server being configured to generate the modeling model:

Acquiring environmental state data of an emergency lighting area, working state data of emergency lighting equipment arranged in the emergency lighting area and parameter data of the emergency lighting equipment;

generating a digital twin model of the emergency lighting area according to the environmental state data of the emergency lighting area, the working state data and the parameter data of the emergency lighting equipment on the basis of the stereoscopic model of the emergency lighting area;

receiving a control instruction for switching the emergency lighting equipment to an emergency lighting mode;

determining an emergency situation corresponding to the control instruction;

acquiring illumination data of the emergency illumination area and related to the emergency situation, wherein the illumination data comprises type, number, position and brightness data of light sources of the emergency illumination area;

inputting the illumination data and the digital twin model into a ray tracing engine to update the ray distribution of the digital twin model;

and outputting a visual graph of the digital twin model.

In particular, the interior space of the building is divided into functional areas according to the functions thereof, such as rooms, halls, toilets, hallways, stairs, machine rooms, archives, warehouses, etc. Not all functional areas in a building need to be provided with emergency lighting devices, and generally, in the evacuation route, the passageway and the safety exit thereof, such as a corridor, a stair, etc., the areas where electric facilities are placed, such as a machine room, a monitoring room, etc., and the hidden areas, such as a basement, etc., are provided with emergency lighting devices, and other areas are optionally provided with or not provided with emergency lighting devices according to actual situations. In the technical scheme of the invention, the functional area of the building, in which the emergency lighting device is installed, is determined as an emergency lighting area.

The environment state data of the emergency lighting area comprise environment data and personnel data of the emergency lighting area, the environment data of the emergency lighting area comprise indoor and outdoor illumination data, temperature data, humidity data, air pressure data, wind speed data and the like of the emergency lighting area, and the personnel data comprise personnel number data, personnel distribution data, personnel movement data and the like in the emergency lighting area. In the technical scheme of the invention, the environmental state data of the emergency illumination area can be acquired through a sensor, a camera and the like which are arranged in the emergency illumination area.

The working state data of the emergency lighting equipment comprise the data of the switching state, the brightness value, the working mode, the residual electric quantity and the like. The parameter data of the emergency lighting equipment comprise color temperature, luminous flux, beam angle, battery capacity, a light control mode and the like of the emergency lighting equipment, wherein the light control mode comprises a common switch mode, a timing switch mode, an environment induction mode and a central control mode.

In the technical scheme of the invention, the control instruction can be a control instruction automatically sent by a fire control system after an emergency situation is detected, or can be a remote control instruction sent to the emergency lighting equipment in a control center by a background control personnel according to actual needs such as a fire control exercise and the like. Such emergency situations include sudden mains supply interruption or situations where a fire, earthquake, flood, tornado, etc. may damage the building structure and in particular may cause mains supply interruption.

In an emergency lighting mode, the emergency lighting device enters a lit state using a backup power source. By configuring control instructions corresponding to different emergency situations, the digital twin model can be used for simulating the illumination situations under different emergency situations, so that effective reference data are provided for the design, installation, detection, control, optimization, fault diagnosis and the like of the emergency lighting equipment.

Further, after inputting the illumination data and the digital twin model into a ray tracing engine to update the ray distribution of the digital twin model, the method further comprises:

acquiring light distribution data of the emergency lighting area through a sensor;

matching the light distribution data of the emergency lighting area with the light distribution of the digital twin model;

and judging the attenuation condition of the emergency lighting equipment of the emergency lighting area according to the matching result.

Further, in the above digital twin model generation system applied to fire emergency lighting, before the step of acquiring the environmental state data of the emergency lighting area, the operation state data of the emergency lighting devices disposed in the emergency lighting area, and the parameter data of the emergency lighting devices, the modeling server is configured to:

Reading building information model data of a target place from a database, wherein the building information model data comprises building component geometric information, building component material information, building space information, building decoration information and building system information of the target place;

determining an installation location of an emergency lighting device in the target site;

determining a building space corresponding to the installation position of the emergency lighting equipment as an emergency lighting area according to the building space information;

and constructing a stereoscopic model of the emergency lighting area based on the building component geometric information, the building component material information and the building decoration information of the emergency lighting area.

Specifically, the target place may be a building or place such as a office building, a residential building, a library, a train station, a park, a parking lot, a square, or the like, which is an office place, a residential place, a provider business, or a public service.

The building component is each component of a building main body forming the target place, the building component geometric information comprises geometric information such as size, shape, position and the like of the building component, the building component material information comprises material information such as material, color, glossiness and the like of the building component, the building space information comprises information such as names, purposes, areas, heights, walls, floors and the like of various spaces in the building, the building decoration information comprises information such as various decorations, furnishings, furniture and the like in the building, and the building system information comprises system information such as electric power, ventilation, water supply and drainage, illumination and the like in the building.

The building system information of the building information model data contains the installation position of the emergency lighting device, namely, the installation position of the emergency lighting device in the target site is determined, specifically, the installation position of the emergency lighting device is obtained from the building information model data.

Further, in the above digital twin model generation system applied to fire emergency lighting, in the step of constructing a stereoscopic model of the emergency lighting area based on building component geometry information, building component material information, and building decoration information of the emergency lighting area, the modeling server is configured to:

determining a base building element and a functional element embedded in the base building element constituting a building space of the emergency lighting area, the base building element comprising a wall element and a floor element;

obtaining geometric information and material information of the basic building component and the functional component;

generating a stereoscopic model body of the building space based on geometric information and material information of the basic building component and the functional component;

arranging decorations in the stereoscopic model body of the building space based on the building decoration information to form a stereoscopic model of the emergency lighting area.

In the technical solution of the above embodiment, for a single-story or multi-story building, the floor members each include a floor member and a ceiling member. The functional members embedded in the base building member include a door member, a window member, an exhaust fan member, and the like.

Further, in the above digital twin model generating system applied to fire emergency lighting, in the step of generating the digital twin model of the emergency lighting area according to the environmental state data of the emergency lighting area, the working state data and the parameter data of the emergency lighting device on the basis of the stereoscopic model of the emergency lighting area, the modeling server is configured to:

an interaction control interface of the digital twin model is constructed, wherein the interaction control interface is an interface for the digital twin model to acquire data from a sensor in the emergency illumination area and the emergency illumination equipment and control the emergency illumination equipment;

acquiring environmental state data of the emergency lighting area, working state data and parameter data of the emergency lighting equipment through the interaction control interface;

and updating the stereoscopic model in real time based on the environmental state data of the emergency lighting area and the working state data and the parameter data of the emergency lighting equipment to obtain a digital twin model of the emergency lighting area.

It should be noted that the interactive control interface of the digital twin model is also connected with electric power facilities, water supply and drainage facilities, ventilation facilities, etc. in the emergency lighting area to acquire electric power data, water supply and drainage data, and ventilation data in the emergency lighting area, and controls the electric power facilities, water supply and drainage facilities, and ventilation facilities of the emergency lighting area through the interactive control interface.

Further, in the digital twin model generation system applied to fire emergency lighting described above, after the step of receiving a control instruction to switch the emergency lighting device to an emergency lighting mode, the modeling server is configured to:

judging whether the control instruction is a fire exercise instruction or not;

when the control instruction is a fire exercise instruction, scene setting data of emergency conditions corresponding to the fire exercise instruction are obtained, wherein the scene setting data comprise types of the emergency conditions, grades of the emergency conditions, occurrence time of the emergency conditions and occurrence positions of the emergency conditions;

and configuring working state parameters of the emergency lighting equipment based on the scene setting data.

Specifically, the type of the emergency situation refers to one or more of sudden mains power interruption, fire, earthquake, flood, tornado and the like. The level of the emergency situation may be divided according to the intensity of the emergency situation or the consequences that the emergency situation may have. The time of emergency can be divided into daytime and nighttime simply, or can be set specifically to a certain moment according to specific implementation conditions.

The working state parameters of the emergency lighting equipment are configurable parameters in the working state data of the emergency lighting equipment, and the working state parameters comprise the switching state, the brightness value, the working mode and the like of the emergency lighting equipment. The working modes of the emergency lighting device comprise a normal-light mode, a timing mode, a sensing mode, a manual mode and the like.

Further, in the digital twin model generating system applied to fire emergency lighting described above, in the step of acquiring lighting data of the emergency lighting area related to the emergency situation, the modeling server is configured to:

acquiring light source information in a building space corresponding to the emergency lighting area from the building information model data, wherein the light source information comprises information of conventional lighting equipment, emergency lighting equipment and environmental light sources in the building space;

judging whether a light shielding object exists in the building space according to the building decoration information and the scene setting data;

when a light shielding object is arranged in the building space, acquiring information of the light shielding object;

and determining the light source information in the building space and the information of the light shielding object as the illumination data.

In the technical scheme of the invention, the environment light source is a functional structure capable of enabling external light to enter the building space on the three-dimensional model of the emergency lighting area, and the functional structure comprises a door body component, a window body component, an exhaust fan component and the like.

The light shielding object comprises ornaments in the emergency illumination area, such as a cabinet, a partition board, plants, a storage rack, a table and a chair, other household furniture, dense smoke, dust, water vapor, chemicals leaked in special occasions and the like.

Further, in the digital twin model generation system applied to fire emergency lighting described above, in the step of configuring the operating state parameters of the emergency lighting device based on the scene setting data, the modeling server is configured to:

acquiring a mains supply state of the emergency lighting area;

judging whether the conventional lighting equipment is in a normal working state according to the commercial power supply state and the environmental state data of the emergency lighting area;

when the conventional lighting equipment is not in a normal working state, acquiring light source information of an ambient light source;

and configuring working state parameters of the emergency lighting equipment according to the light source information of the ambient light source.

Specifically, the light source information in the building space includes the position, brightness, color temperature and light emitting mode of each light source.

And the communication with the power equipment in the emergency lighting area can be realized through the interactive control interface in the digital twin model so as to obtain the working state of the power equipment, including the power supply state of the emergency lighting area. By combining the power supply state of the emergency lighting area and the brightness sensor and the like in the emergency lighting area, whether the conventional lighting equipment of the emergency lighting area is in a normal working state can be judged.

When the emergency lighting area is in the condition that the ambient light is sufficient, the emergency lighting equipment can be controlled to be in a closed state or a low-brightness working state through the interaction control interface so as to prolong the service time of the standby power supply.

When the emergency lighting area is not illuminated by ambient light or the ambient light brightness is extremely low, the emergency lighting equipment needs to be controlled by the interactive control interface to provide enough brightness for the emergency lighting area so as to ensure the safe evacuation of people in emergency.

Further, in the digital twin model generating system applied to fire emergency lighting described above, after the step of inputting the lighting data and the digital twin model into a ray tracing engine to update the ray distribution of the digital twin model, the modeling server is configured to:

Acquiring an emergency evacuation route of the target place;

determining an emergency lighting area passing on the emergency evacuation route;

determining emergency lighting coverage on the emergency evacuation route based on the light distribution of the digital twin model;

dividing the area passing through the emergency evacuation route into a light coverage area and an uncovered area according to the emergency lighting coverage condition on the emergency evacuation route;

determining the uncovered area as a hazardous area;

the step of outputting the visual graph of the digital twin model specifically comprises the following steps:

the hazard zone is identified in the digital twinning model.

Further, in the digital twin model generating system applied to fire emergency lighting described above, after the step of inputting the lighting data and the digital twin model into a ray tracing engine to update the ray distribution of the digital twin model, the modeling server is configured to:

identifying a low brightness region formed by the light obscuration;

acquiring the area of the low-brightness area;

and when the area of the low-brightness area is larger than a preset early warning threshold value, determining the low-brightness area as a dangerous area.

According to the technical scheme of the embodiment, the digital twin model is used for simulating emergency lighting conditions under different emergency conditions in the exercise mode, dangerous areas on the emergency evacuation route are identified, the emergency lighting equipment can be checked, tested and maintained at low cost, and when the emergency lighting equipment is in a fault or low-power state, the emergency lighting equipment can be maintained or replaced in time, so that the fire safety of a target place is guaranteed.

In some embodiments of the present invention, after the step of receiving a control instruction to switch the emergency lighting device to an emergency lighting mode, the method further comprises:

when the control instruction is automatically sent by the fire control system after the emergency condition is detected, acquiring power data, water supply and drainage data, ventilation data, environment state data and working state data and parameter data of the emergency lighting equipment of the emergency lighting area;

and updating the digital twin model based on the power data, the water supply and drainage data, the ventilation data, the environment state data, the working state data and the parameter data of the emergency lighting equipment of the emergency lighting area.

It should be noted that in this document relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Embodiments in accordance with the present invention, as described above, are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims (6)

1. A digital twin model generation method applied to fire emergency lighting, comprising:

acquiring environmental state data of an emergency lighting area, working state data of emergency lighting equipment arranged in the emergency lighting area and parameter data of the emergency lighting equipment;

generating a digital twin model of the emergency lighting area according to the environmental state data of the emergency lighting area, the working state data and the parameter data of the emergency lighting equipment on the basis of the stereoscopic model of the emergency lighting area;

receiving a control instruction for switching the emergency lighting equipment to an emergency lighting mode;

Determining an emergency situation corresponding to the control instruction;

acquiring illumination data of the emergency illumination area and related to the emergency situation, wherein the illumination data comprises type, number, position and brightness data of light sources of the emergency illumination area;

inputting the illumination data and the digital twin model into a ray tracing engine to update the ray distribution of the digital twin model;

outputting a visual graph of the digital twin model;

after the step of receiving a control instruction to switch the emergency lighting device to an emergency lighting mode, the method further comprises:

judging whether the control instruction is a fire exercise instruction or not;

when the control instruction is a fire exercise instruction, scene setting data of emergency conditions corresponding to the fire exercise instruction are obtained, wherein the scene setting data comprise types of the emergency conditions, grades of the emergency conditions, occurrence time of the emergency conditions and occurrence positions of the emergency conditions;

configuring working state parameters of the emergency lighting equipment based on the scene setting data;

the step of obtaining the illumination data of the emergency illumination area related to the emergency situation specifically includes:

acquiring light source information in a building space corresponding to the emergency lighting area from building information model data, wherein the light source information comprises information of conventional lighting equipment, emergency lighting equipment and environmental light sources in the building space;

Judging whether a light shielding object exists in the building space according to the building decoration information and the scene setting data;

when a light shielding object is arranged in the building space, acquiring information of the light shielding object;

determining light source information within the building space and information of the light obscuration as the illumination data;

the step of configuring the working state parameters of the emergency lighting device based on the scene setting data specifically comprises the following steps:

acquiring a mains supply state of the emergency lighting area;

judging whether the conventional lighting equipment is in a normal working state according to the commercial power supply state and the environmental state data of the emergency lighting area;

when the conventional lighting equipment is not in a normal working state, acquiring light source information of an ambient light source;

configuring working state parameters of the emergency lighting equipment according to the light source information of the ambient light source;

after the step of inputting the illumination data and the digital twin model to a ray tracing engine to update the ray distribution of the digital twin model, further comprising:

acquiring an emergency evacuation route of a target place;

determining an emergency lighting area passing on the emergency evacuation route;

Determining emergency lighting coverage on the emergency evacuation route based on the light distribution of the digital twin model;

dividing the area passing through the emergency evacuation route into a light coverage area and an uncovered area according to the emergency lighting coverage condition on the emergency evacuation route;

determining the uncovered area as a hazardous area;

the step of outputting the visual graph of the digital twin model specifically comprises the following steps:

the hazard zone is identified in the digital twinning model.

2. The digital twin model generation method for fire emergency lighting according to claim 1, further comprising, prior to the step of acquiring environmental status data of an emergency lighting area, operational status data of emergency lighting devices disposed in the emergency lighting area, and parameter data of the emergency lighting devices:

reading building information model data of a target place from a database, wherein the building information model data comprises building component geometric information, building component material information, building space information, building decoration information and building system information of the target place;

determining an installation location of an emergency lighting device in the target site;

Determining a building space corresponding to the installation position of the emergency lighting equipment as an emergency lighting area according to the building space information;

and constructing a stereoscopic model of the emergency lighting area based on the building component geometric information, the building component material information and the building decoration information of the emergency lighting area.

3. The digital twin model generation method for fire emergency lighting according to claim 2, wherein the step of constructing the stereoscopic model of the emergency lighting area based on the building member geometry information, the building member material information, and the building decoration information of the emergency lighting area specifically comprises:

determining a base building element and a functional element embedded in the base building element constituting a building space of the emergency lighting area, the base building element comprising a wall element and a floor element;

obtaining geometric information and material information of the basic building component and the functional component;

generating a stereoscopic model body of the building space based on geometric information and material information of the basic building component and the functional component;

arranging decorations in the stereoscopic model body of the building space based on the building decoration information to form a stereoscopic model of the emergency lighting area.

4. The method for generating a digital twin model for fire emergency lighting according to claim 3, wherein the step of generating the digital twin model for the emergency lighting area based on the environmental state data of the emergency lighting area, the operating state data and the parameter data of the emergency lighting device on the basis of the stereoscopic model for the emergency lighting area specifically comprises:

an interaction control interface of the digital twin model is constructed, wherein the interaction control interface is an interface for the digital twin model to acquire data from a sensor in the emergency illumination area and the emergency illumination equipment and control the emergency illumination equipment;

acquiring environmental state data of the emergency lighting area, working state data and parameter data of the emergency lighting equipment through the interaction control interface;

and updating the stereoscopic model in real time based on the environmental state data of the emergency lighting area and the working state data and the parameter data of the emergency lighting equipment to obtain a digital twin model of the emergency lighting area.

5. The digital twin model generation method for fire emergency lighting according to claim 1, further comprising, after the step of updating the light distribution of the digital twin model by inputting the lighting data and the digital twin model to a ray tracing engine:

Identifying a low brightness region formed by the light obscuration;

acquiring the area of the low-brightness area;

and when the area of the low-brightness area is larger than a preset early warning threshold value, determining the low-brightness area as a dangerous area.

6. A digital twin model generation system applied to fire emergency lighting, comprising a modeling server for generating a digital twin model of an emergency lighting area, an emergency lighting device arranged in the emergency lighting area for providing emergency lighting to the emergency lighting area, a device information server for providing information of the emergency lighting device, a sensor arranged in the emergency lighting area for collecting environmental status data of the emergency lighting area, and a fire management server for fire safety management, the modeling server, the emergency lighting device, the device information server, the sensor being communicatively connected to the fire management server, the fire safety management server being configured to obtain environmental status data of the emergency lighting area through the sensor, obtain operational status data of the emergency lighting device through the emergency lighting device, transmit the environmental status data of the emergency lighting area, the operational status data of the emergency lighting device and the parameter data of the emergency lighting device to the modeling server after obtaining the parameter data of the emergency lighting device through the device information server to cause the modeling server to be configured as the digital twin model, the modeling server being configured to generate the digital twin model:

Acquiring environmental state data of an emergency lighting area, working state data of emergency lighting equipment arranged in the emergency lighting area and parameter data of the emergency lighting equipment;

generating a digital twin model of the emergency lighting area according to the environmental state data of the emergency lighting area, the working state data and the parameter data of the emergency lighting equipment on the basis of the stereoscopic model of the emergency lighting area;

receiving a control instruction for switching the emergency lighting equipment to an emergency lighting mode;

determining an emergency situation corresponding to the control instruction;

acquiring illumination data of the emergency illumination area and related to the emergency situation, wherein the illumination data comprises type, number, position and brightness data of light sources of the emergency illumination area;

inputting the illumination data and the digital twin model into a ray tracing engine to update the ray distribution of the digital twin model;

outputting a visual graph of the digital twin model;

after the step of receiving a control instruction to switch the emergency lighting device to an emergency lighting mode, the modeling server is configured to:

judging whether the control instruction is a fire exercise instruction or not;

When the control instruction is a fire exercise instruction, scene setting data of emergency conditions corresponding to the fire exercise instruction are obtained, wherein the scene setting data comprise types of the emergency conditions, grades of the emergency conditions, occurrence time of the emergency conditions and occurrence positions of the emergency conditions;

configuring working state parameters of the emergency lighting equipment based on the scene setting data;

in the step of acquiring illumination data of the emergency illumination area related to the emergency situation, the modeling server is configured to:

acquiring light source information in a building space corresponding to the emergency lighting area from building information model data, wherein the light source information comprises information of conventional lighting equipment, emergency lighting equipment and environmental light sources in the building space;

judging whether a light shielding object exists in the building space according to the building decoration information and the scene setting data;

when a light shielding object is arranged in the building space, acquiring information of the light shielding object;

determining light source information within the building space and information of the light obscuration as the illumination data;

In the step of configuring the operational state parameters of the emergency lighting device based on the scene setting data, the modeling server is configured to:

acquiring a mains supply state of the emergency lighting area;

judging whether the conventional lighting equipment is in a normal working state according to the commercial power supply state and the environmental state data of the emergency lighting area;

when the conventional lighting equipment is not in a normal working state, acquiring light source information of an ambient light source;

configuring working state parameters of the emergency lighting equipment according to the light source information of the ambient light source;

after the step of inputting the illumination data and digital twin model into a ray tracing engine to update the ray distribution of the digital twin model, the modeling server is configured to:

acquiring an emergency evacuation route of a target place;

determining an emergency lighting area passing on the emergency evacuation route;

determining emergency lighting coverage on the emergency evacuation route based on the light distribution of the digital twin model;

dividing the area passing through the emergency evacuation route into a light coverage area and an uncovered area according to the emergency lighting coverage condition on the emergency evacuation route;

Determining the uncovered area as a hazardous area;

the step of outputting the visual graph of the digital twin model specifically comprises the following steps:

the hazard zone is identified in the digital twinning model.