Control method, system and equipment of emergency lighting equipment and storage medium

Abstract

The invention provides a control method, system and device of emergency lighting equipment and a storage medium, and relates to the technical field of fire-fighting emergency lighting, and the method comprises the steps: obtaining fire behavior data, environment data and structure data of a target building; on the basis of the fire behavior data, fire behavior spreading data is generated in combination with the environment data and the structure data; generating a first control strategy of the emergency lighting equipment according to the fire spreading data; acquiring the smoke concentration and temperature of each area in the target building, and adjusting the first control strategy according to the smoke concentration and temperature to generate a second control strategy; and obtaining the personnel density, the personnel position and the personnel type of each region, and adjusting the second control strategy in combination with the personnel density, the personnel position and the personnel type to generate a target control strategy. The technical effects of the invention are that the emergency lighting equipment can adjust the control strategy in time according to the actual situation, and the effectiveness of evacuation guidance is improved.

Description

Technical Field

[0001] The present application relates to the technical field of fire emergency lighting, and in particular to a control method, system, equipment and storage medium for emergency lighting equipment. Background Art

[0002] When a fire occurs in a building, emergency lighting equipment is needed to provide accurate evacuation guidance to ensure safe evacuation of personnel. However, the environment inside a building is complex and changeable, and the spread of fire, smoke, and personnel distribution will change dynamically, which places high demands on the control of emergency lighting equipment. How to adjust the control strategy of emergency lighting equipment according to real-time conditions so that it can always provide the best evacuation guidance for personnel is a technical problem that needs to be solved in the current field of building fire protection.

[0003] At present, the control method of emergency lighting equipment is usually based on fixed guidance based on preset evacuation routes. Although the above method can realize basic evacuation guidance functions, it lacks the ability to respond to the internal conditions of the building in real time, resulting in the inability of emergency lighting equipment to adjust the control strategy in time according to actual conditions, thereby reducing the effectiveness of evacuation guidance. Summary of the invention

[0004] The present application provides a control method, system, device and storage medium for emergency lighting equipment, which are used to enable the emergency lighting equipment to adjust the control strategy in a timely manner according to actual conditions, thereby improving the effectiveness of evacuation guidance.

[0005] In a first aspect, the present application provides a method for controlling emergency lighting equipment, the method comprising: obtaining fire data of a target building, environmental data of the target building, and structural data of the target building; generating fire spread data based on the fire data in combination with the environmental data and the structural data; generating a first control strategy for the emergency lighting equipment in the target building according to the fire spread data, the first control strategy including the display content and indication direction of the emergency lighting equipment; obtaining the smoke concentration and temperature of each area in the target building, adjusting the first control strategy according to the smoke concentration and the temperature, and generating a second control strategy; obtaining the population density, population position, and population type of each area, adjusting the second control strategy in combination with the population density, the population position, and the population type, and generating a target control strategy.

[0006] By adopting the above technical solution, fire spread data is generated by obtaining the fire situation data, environmental data and structural data of the target building, thereby formulating a basic first control strategy; further, a second control strategy is generated according to the smoke concentration and temperature of each area, and finally a target control strategy is generated in combination with the personnel density, location and type information, so that the emergency lighting equipment can adjust the control strategy in a timely manner according to the actual situation and improve the effectiveness of evacuation guidance.

[0007] Optionally, on the basis of the fire situation data, combining the environmental data and the structural data to generate fire spread data, including: determining the initial fire spread direction according to the location of the ignition point and the combustion intensity in the fire situation data; calculating the fire spread rate according to the air circulation parameter and the combustible distribution parameter in the environmental data; based on the fire resistance rating of the building material and the spatial connection relationship in the structural data, correcting the fire spread rate to generate a target fire spread rate; combining the initial fire spread direction and the target fire situation to generate fire spread data, and the fire spread data includes the spread range and intensity of the fire at different time points.

[0008] By adopting the above technical solution, the initial fire spread direction is determined according to the fire situation data, the fire spread rate is calculated by combining the air circulation parameter and the combustible distribution parameter in the environmental data, and the target fire spread rate is obtained by correction based on the fire resistance rating of the building material and the spatial connection relationship, and then the fire spread data including the spread range and intensity of the fire at different time points is generated, thereby realizing the accurate prediction of the fire development trend and providing a reliable basis for the formulation of subsequent control strategies.

[0009] Optionally, generating the first control strategy for the emergency lighting equipment in the target building according to the fire spread data includes: determining the target area affected by the fire according to the fire spread data; determining the safe evacuation path in the target building according to the target area, and generating the first indication direction and the first display content of the emergency lighting equipment according to the safe evacuation path; using the first indication direction and the first display content as the first control strategy of the emergency lighting equipment.

[0010] By adopting the above technical solution, the target area affected by the fire is determined according to the fire spread data, and then the safe evacuation path in the target building is determined, and the first indication direction and the first display content of the emergency lighting equipment are generated based on this path, thereby forming the first control strategy, so that the emergency lighting equipment can avoid the area affected by the fire in a timely manner and provide a safer evacuation path guidance for personnel.

[0011] Optionally, adjusting the first control strategy according to the smoke concentration and the temperature to generate a second control strategy includes: generating a safety index for each area according to the smoke concentration and the temperature; wherein, the smoke concentration is inversely proportional to the safety index, and the temperature is inversely proportional to the safety index; taking the areas with the safety index higher than the preset index as safe areas; on the basis of the safe areas, adjusting the first indication direction and the first display content of the emergency lighting equipment in the first control strategy to generate a second control strategy.

[0012] By adopting the above technical solution, by establishing an inverse relationship between the smoke concentration and the temperature and the safety index, determining the safe areas with the safety index higher than the preset index, and accordingly adjusting the indication direction and the display content in the first control strategy to generate a second control strategy, the situation of evacuating people to high-temperature or thick-smoke areas is avoided, and the safety of the evacuation route is further improved.

[0013] Optionally, adjusting the second control strategy according to the personnel density, the personnel location and the personnel type to generate a target control strategy includes: generating a congestion index for each area according to the personnel density, the congestion index being directly proportional to the personnel density; generating the evacuation difficulty for each area according to the personnel location; combining the congestion index and the evacuation difficulty to adjust the second indication direction in the second control strategy to generate a target indication direction; adjusting the second display content in the second control strategy according to the personnel type to generate a target display content; taking the target indication direction and the target display content as the target control strategy.

[0014] By adopting the above technical solution, by generating a congestion index for each area based on the personnel density, adjusting the indication direction of the second control strategy in combination with the evacuation difficulty generated according to the personnel location, and adjusting the display content according to the personnel type, a target control strategy is finally formed, thereby avoiding the congestion phenomenon during the evacuation process and providing personalized evacuation guidance for different types of personnel, and improving the evacuation efficiency.

[0015] Optionally, combining the crowding index and the evacuation difficulty to adjust the second indication direction in the second control strategy to generate a target indication direction includes: determining an area with a crowding index greater than a preset threshold as a crowded area, and determining an area with an evacuation difficulty greater than a preset level as an evacuation difficult area; for the crowded area, determining an adjacent area with a crowding index less than the preset threshold as an evacuation target area, and adjusting the indication direction of the emergency lighting device to point to the direction of the evacuation target area; for the evacuation difficult area, determining an alternative evacuation area with an evacuation difficulty less than the preset level and the shortest path from the current position as an alternative evacuation area, and adjusting the indication direction of the emergency lighting device to point to the direction of the alternative evacuation area; when the same area satisfies both the crowded area and the evacuation difficult area at the same time, adjusting the evacuation direction according to the crowding index; and using the adjusted indication direction of the emergency lighting device as the target indication direction.

[0016] By adopting the above technical solution, by identifying the crowded area and the evacuation difficult area, the indication direction of the emergency lighting device is respectively adjusted to point to an adjacent area with a smaller crowding index or an alternative evacuation area with a lower evacuation difficulty and the shortest path, and when the area satisfies both conditions at the same time, the crowding index is preferentially considered for direction adjustment, thereby realizing the dynamic optimization of the personnel evacuation path, effectively alleviating the personnel congestion in the local area, and at the same time ensuring the accessibility of the evacuation path.

[0017] Optionally, after generating the target control strategy, it further includes: when detecting an abnormal state of the emergency lighting device, obtaining the location information of the emergency lighting device in the abnormal state; based on the location information, calling a standby emergency lighting device adjacent to the location of the emergency lighting device in the abnormal state; and sending the target control strategy to the standby emergency lighting device.

[0018] By adopting the above technical solution, by detecting the abnormal state of the emergency lighting device, timely obtaining the location information of the abnormal device and calling the adjacent standby emergency lighting device to execute the target control strategy, the continuity of the evacuation guidance can still be maintained when the device fails, and the reliability of the emergency lighting system is improved.

[0019] In a second aspect, the present application provides a control system for an emergency lighting device, and the system includes: an acquisition module, a combination module, a generation module, a first adjustment module, and a second adjustment module; wherein, The obtaining module is configured to obtain the fire data, the environmental data, and the structural data of the target building; the combining module is configured to generate fire spread data by combining the environmental data and the structural data on the basis of the fire data; the generating module is configured to generate a first control strategy for the emergency lighting equipment in the target building according to the fire spread data, where the control strategy includes the display content and the indication direction of the emergency lighting equipment; the first adjustment module is configured to obtain the smoke concentration and temperature of each area in the target building, and adjust the first control strategy according to the smoke concentration and the temperature to generate a second control strategy; the second adjustment module is configured to obtain the personnel density, personnel location, and personnel type of each area, and adjust the second control strategy by combining the personnel density, the personnel location, and the personnel type to generate a target control strategy.

[0020] In a third aspect, the present application provides an electronic device, which adopts the following technical solution: including a processor, a memory, a user interface, and a network interface, where the memory is used to store instructions, the user interface and the network interface are used to communicate with other devices, and the processor is used to execute the instructions stored in the memory so that the electronic device executes a computer program of any one of the above control methods for emergency lighting equipment.

[0021] In a fourth aspect, the present application provides a computer-readable storage medium, which adopts the following technical solution: storing a computer program that can be loaded and executed by a processor to execute any one of the above control methods for emergency lighting equipment.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: By obtaining the fire data, environmental data, and structural data of the target building, generating fire spread data, and thus formulating a basic first control strategy; further generating a second control strategy according to the smoke concentration and temperature of each area, and finally generating a target control strategy by combining the personnel density, location, and type information, the emergency lighting equipment can adjust the control strategy in a timely manner according to the actual situation, improving the effectiveness of evacuation guidance. Description of the Drawings

[0023] Figure 1 is a schematic flowchart of a control method for an emergency lighting equipment provided by an embodiment of the present application; Figure 2 is a schematic structural diagram of a control system for an emergency lighting equipment provided by an embodiment of the present application; Figure 3 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

[0024] Description of the drawing reference numerals: 1000, electronic device; 1001, processor; 1002, communication bus; 1003, user interface; 1004, network interface; 1005, memory. Detailed implementation manners

[0025] In order to enable those skilled in the art to better understand the technical solutions in this specification, the following will clearly and completely describe the technical solutions in the embodiments of this specification with reference to the accompanying drawings in the embodiments of this specification. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments.

[0026] In the description of the embodiments of this application, words such as "exemplary", "for example" or "for instance" are used to represent examples, illustrations or explanations. Any embodiment or design solution described as "exemplary", "for example" or "for instance" in the embodiments of this application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Exactly, the use of words such as "exemplary", "for example" or "for instance" is intended to present related concepts in a specific manner.

[0027] Figure 1 It is a schematic flowchart of a control method for an emergency lighting device provided by an embodiment of this application. As Figure 1 shown, the method includes S101 - S105: S101, obtain the fire data, environmental data and structural data of the target building.

[0028] In this embodiment, in order to achieve precise control of the emergency lighting devices in the target building, it is first necessary to comprehensively master the fire situation, environmental conditions and building characteristics of the target building. Specifically, the fire data is obtained through fire detectors set in each area of the target building, and the fire data includes parameters such as the location of the ignition point, combustion intensity, and flame spread speed; among them, the fire detectors can be a combination of infrared sensors, temperature sensors, smoke sensors, etc., and the accuracy of fire judgment is improved through multi-source data fusion.

[0029] At the same time, the environmental data of the target building is collected by using an environmental monitoring system. The environmental data includes air circulation parameters and combustible distribution parameters. Among them, the air circulation parameters can measure the air flow direction and speed in the building through a wind speed sensor, and the combustible distribution parameters are obtained from a pre-established building item distribution database to obtain the type, quantity and distribution of combustibles in each area. In addition, the structural data of the target building is retrieved from the building information management system. The structural data includes information such as the fire resistance rating of the building material and the spatial connectivity relationship. Among them, the fire resistance rating of the building material represents the load-bearing capacity and fire resistance time limit of different building components in a fire, and the spatial connectivity relationship describes the positional relationship and passage conditions between each area in the building.

[0030] By obtaining the above three types of data, a complete fire situation awareness system can be established. The fire situation data directly reflects the development of the fire, the environmental data affects the spread direction and speed of the fire, and the structural data determines the propagation path of the fire within the building. The collaborative analysis of these data lays the foundation for subsequent generation of accurate fire spread predictions and formulation of reasonable evacuation strategies. In addition, considering the dynamic change characteristics of the fire situation, the data acquisition process in this embodiment adopts a real-time update mechanism to ensure that the control strategy can respond in a timely manner to changes in the on-site situation.

[0031] S102, based on the fire situation data, combine the environmental data and the structural data to generate fire spread data.

[0032] Based on the data obtained for the target building, in order to accurately predict the development trend of the fire and guide the emergency lighting equipment to adjust the control strategy in a timely manner, this embodiment provides a method for generating fire spread data.

[0033] First, the system determines the initial fire spread direction according to the location of the ignition point and the combustion intensity information in the fire situation data. Specifically, by analyzing the temperature gradient and heat transfer direction around the ignition point and combining the flame shape characteristics, the basic direction in which the fire is most likely to spread is calculated. Subsequently, the fire spread rate is calculated based on the air circulation parameters and combustible distribution parameters in the environmental data. Among them, the air circulation parameters mainly consider the ventilation conditions in the building, including the airflow changes caused by natural ventilation and mechanical ventilation, and these factors will significantly affect the oxygen supply and heat transfer; the combustible distribution parameters reflect the type, quantity, and spatial distribution of combustibles in each area, and these characteristics determine the material basis and energy supply for the fire spread.

[0034] After obtaining the preliminary fire spread rate, the system further corrects it using the fire resistance rating of the building materials and the spatial connectivity relationship in the structural data. The fire resistance rating of the building materials characterizes the stability and fire resistance ability of different components in a high-temperature environment, and the spatial connectivity relationship describes the possible paths for the fire to spread within the building. By considering these factors, the system generates a more accurate target fire spread rate. Finally, combining the initial fire spread direction with the target fire spread rate, complete fire spread data is generated, which contains the spread range and intensity information of the fire at different time points.

[0035] Based on the above embodiment, as an alternative implementation, in S102, based on the fire situation data, combining the environmental data and the structural data to generate fire spread data specifically includes S21 - S24: S21, according to the location of the ignition point and the combustion intensity in the fire situation data, determine the initial fire spread direction.

[0036] To more accurately predict the fire development trend, this embodiment provides a detailed method for generating fire spread data. First, the system conducts an initial fire analysis based on the fire data collected by fire detectors. Specifically, the precise spatial coordinates of the ignition point are obtained through an infrared sensor and a temperature sensor, and the combustion intensity index is calculated using multi-point temperature measurement data. The system adopts a heat flow field analysis model and calculates the basic direction vector in which the initial fire is most likely to spread according to the temperature gradient distribution and heat transfer law around the ignition point. This direction vector not only considers the spatial distribution characteristics of the temperature field but also combines the flame shape characteristics to form a preliminary fire spread prediction direction.

[0037] S22. Calculate the fire spread rate based on the air circulation parameters and combustible distribution parameters in the environmental data.

[0038] After determining the initial spread direction, the system calculates the fire spread speed in combination with environmental factors. Specifically, the air flow direction and speed inside the building are measured through a wind speed sensor, and at the same time, the position and type information of combustibles in each area are obtained by querying the combustible distribution database. When the air flow direction is consistent with the fire spread direction, the fire spread speed will increase accordingly; otherwise, it will slow down. At the same time, the greater the distribution density of combustibles, the faster the fire spread speed. Through the simple superposition calculation of these factors, a preliminary fire spread rate is obtained.

[0039] S23. Based on the fire resistance rating of the building materials and the spatial connection relationship in the structural data, correct the fire spread rate to generate the target fire spread rate.

[0040] To make the prediction more accurate, the system also needs to make corrections according to the building characteristics. From the building structure data, the fire resistance ratings of components such as walls and floors in different areas and the connection conditions between spaces can be known. When the fire needs to pass through a wall with a higher fire resistance rating, its spread rate will be significantly reduced; when passing through an open space or a passage, the spread rate will increase. The system adjusts the previously calculated fire spread rate according to these characteristics to generate a target fire spread rate that more conforms to the actual situation.

[0041] S24. Combine the initial fire spread direction and the target fire to generate fire spread data, where the fire spread data includes the spread range and intensity of the fire at different time points.

[0042] Finally, the system combines the initial fire spread direction with the corrected target fire spread rate to predict the development of the fire over time. The specific method is to start from the current moment and, according to the preset time interval (such as 30 seconds, 1 minute, etc.), gradually calculate the influence range of the fire based on the spread direction and spread rate. At the same time, according to the accumulation of the combustion time, the intensity change of the fire in each area is calculated, and finally a data set containing the fire range and intensity at different time points is generated.

[0043] S103. Generate a first control strategy for the emergency lighting equipment in the target building according to the fire spread data. The first control strategy includes the display content and the indication direction of the emergency lighting equipment.

[0044] Based on the aforementioned generated fire spread data, this embodiment provides a method for formulating an initial control strategy for emergency lighting equipment. To ensure that personnel can evacuate from the dangerous area in a timely and orderly manner, it is necessary to plan a reasonable evacuation path according to the development trend of the fire and transmit accurate guiding information to the evacuees through the emergency lighting equipment.

[0045] Specifically, the system first determines the target area affected by the fire according to the fire spread data, that is, the area currently affected by the fire and the area expected to be threatened by the fire in a short time. In the process of determining the target area, the system not only considers the direct fire range but also needs to evaluate the influence range of secondary risk factors such as high temperature and thick smoke caused by the fire.

[0046] After identifying the target area, the system calculates the optimal evacuation path from each location to the safety exit based on the spatial topology structure of the building. This path needs to bypass the target area and minimize the potential risks during the evacuation process. In the path planning process, the system regards each area in the building as a node, and the passage between areas as the edge connecting the nodes, and assigns different weights according to the characteristics of the passage such as width and slope. In this way, the system can generate a safe evacuation path that not only avoids dangerous areas but also is convenient for passage.

[0047] Based on the calculated safe evacuation path, the system generates corresponding first indication direction and first display content for the emergency lighting equipment along the way. Among them, the first indication direction guides the evacuees to move forward along the planned path through direction identifiers such as arrows, and the first display content includes key information such as the distance to the nearest safety exit and the recommended evacuation direction. To ensure the effectiveness of information transmission, the system will adjust the presentation method of the display content according to the characteristics of different areas, such as increasing the display brightness in areas where the smoke may be large and increasing the display frequency in crowded areas.

[0048] Based on the above embodiment, as an optional implementation manner, in S103, generating a first control strategy for the emergency lighting equipment in the target building according to the fire spread data specifically includes S31 - S33: S31. Determine the target area affected by the fire according to the fire spread data.

[0049] In order to scientifically formulate the control strategy for emergency lighting equipment, this embodiment provides a method for generating a control strategy based on fire impact analysis. First, the system determines the target areas affected by the fire according to the fire spread data. These areas include the areas where the fire has occurred and the areas that are expected to be threatened by the fire in the short term. When determining the target areas, the system comprehensively considers the direct impact range and the indirect impact range of the fire. The direct impact range refers to the area actually covered by the fire, while the indirect impact range includes the areas that are not suitable for personnel passage due to secondary factors such as high temperature and thick smoke. The system marks these areas as dangerous areas, which need to be avoided when planning the evacuation route later.

[0050] S32. According to the target areas, determine the safe evacuation routes in the target building, and generate the first indication direction and the first display content of the emergency lighting equipment according to the safe evacuation routes.

[0051] S33. Use the first indication direction and the first display content as the first control strategy for the emergency lighting equipment.

[0052] After determining the target areas, the system starts to plan the safe evacuation routes. By analyzing the floor plan layout and passage connection relationship of the building, the system first identifies the positions of all available safety exits. Then, based on the distance from each area to the nearest safety exit and avoiding the previously determined dangerous areas, the system plans the optimal evacuation routes. During the route planning process, the system preferentially selects the spacious and unobstructed main passages and avoids guiding people to narrow or easily congested secondary passages. For different areas, the system will plan multiple alternative evacuation routes to cope with the situation where a certain route may be blocked by the fire.

[0053] Based on the planned safe evacuation routes, the system generates the corresponding first indication direction and the first display content for the emergency lighting equipment along the way. The first indication direction mainly uses direction indicators such as arrows to guide the evacuation direction, and the direction of the arrow is consistent with the planned evacuation route. The first display content includes the distance information to the nearest safety exit, the text description of the recommended evacuation direction, etc. At some key positions, such as passage intersections or turning points, the system will add more detailed indication information to ensure that the evacuees can accurately judge the advancing direction. At the same time, the system will also adjust the display method according to the characteristics of different areas. For example, in the areas where thick smoke is expected to be generated, the size and brightness of the display signs will be increased to improve the recognition degree.

[0054] Finally, the system integrates the generated first indication direction and the first display content into the first control strategy for the emergency lighting equipment. This control strategy is sent to each emergency lighting equipment in the form of a data packet, including parameters such as the specific content to be displayed by the equipment, the display direction, and the brightness. The system supports real-time update of the control strategy. When the fire spread data changes, it can timely adjust the indication information of the corresponding area.

[0055] S104. Obtain the smoke concentration and temperature of each area in the target building, and adjust the first control strategy according to the smoke concentration and temperature to generate a second control strategy.

[0056] After generating the first control strategy, considering the important impact of smoke and temperature factors on personnel evacuation during a fire, this embodiment provides an optimization method for control strategies based on environmental parameters. The system uses smoke sensors and temperature sensors deployed in each area of the target building to monitor the smoke concentration and temperature data of each area in real time. Among them, the smoke sensor uses a photoelectric smoke detector, which can accurately detect the concentration of smoke particles in the air; the temperature sensor uses a thermocouple temperature detector, which can monitor the change of environmental temperature in real time.

[0057] Based on the obtained smoke concentration and temperature data, the system uses an improved safety assessment algorithm to generate the safety index of each area. The safety index is calculated by weighted summation, where both the smoke concentration and temperature are inversely proportional to the safety index. Specifically, when the smoke concentration in a certain area exceeds the threshold tolerable by personnel (such as visibility less than 5 meters), the safety index of this area will decrease significantly; similarly, when the area temperature exceeds the safety threshold (such as temperature higher than 60 °C), it will also cause the safety index to drop. The system marks the areas with a safety index higher than the preset index as safe areas, and these areas are suitable as evacuation routes or temporary shelters.

[0058] On the basis of determining the safe areas, the system dynamically adjusts the indicated direction and display content in the first control strategy. The adjustment process mainly considers the following aspects: First, optimize the evacuation path to make it pass through areas with a higher safety index as much as possible and avoid dangerous areas with too high smoke concentration or temperature; second, adjust the display mode of emergency lighting equipment according to the safety levels of different areas, such as increasing the size and brightness of indication signs in areas with heavy smoke and adding warning information near high-temperature areas; finally, the system will also update the alternative evacuation paths in real time according to the dynamic change of the safety index to ensure that the safest evacuation options are always provided for the evacuees.

[0059] Based on the above embodiment, as an alternative implementation, in S104, adjusting the first control strategy according to the smoke concentration and temperature to generate a second control strategy specifically includes S41 - S43: S41. Generate the safety index of each area according to the smoke concentration and the temperature; among them, the smoke concentration is inversely proportional to the safety index, and the temperature is inversely proportional to the safety index.

[0060] To more comprehensively evaluate the safety status of each area, this embodiment provides an optimization method for control strategies based on environmental parameters. The system first obtains real-time smoke concentration and temperature data through smoke sensors and temperature sensors distributed throughout the building. Based on these environmental parameters, the system uses a safety index calculation formula to generate the safety index for each area. During specific calculations, the influencing factors of smoke concentration and temperature are weighted. When the smoke concentration in a certain area increases, its safety index will decrease accordingly, and when the area temperature increases, the safety index will also decrease. For example, when the smoke concentration exceeds 0.5 dB / m or the temperature exceeds 45 °C, the safety index of this area will drop significantly. This calculation method reflects the threat degree of smoke and high temperature to personnel safety.

[0061] The calculation formula for the safety index is: Safety Index = 100×(1 - α×S / Smax)×(1 - β×T / Tmax); where: S is the measured smoke concentration, Smax is the maximum allowable value of smoke concentration (taking 2.0 dB / m), T is the measured temperature, Tmax is the maximum allowable value of temperature (taking 100 °C), α is the influence weight of smoke concentration (taking 0.6), and β is the influence weight of temperature (taking 0.4).

[0062] When the smoke concentration in a certain area exceeds Smax or the temperature exceeds Tmax, the safety index of this area is directly determined to be 0. The settings of the weights α and β reflect the actual situation that the influence of smoke on personnel evacuation is slightly greater than that of temperature, because smoke not only affects visibility but also causes asphyxiation hazards. The system supports adjusting relevant parameters according to different building types and usage functions to adapt to various actual application scenarios.

[0063] S42, Regarding the areas with a safety index higher than the preset index as safe areas.

[0064] S43, Based on the safe areas, adjust the first indication direction and the first display content of the emergency lighting equipment in the first control strategy to generate the second control strategy.

[0065] After generating the safety index for each area, the system compares these values with a pre-set safety threshold. The preset index is a standard value determined based on the basic requirements of personnel safe evacuation, usually considering the tolerance of personnel to smoke and temperature during the evacuation process. When the safety index of a certain area is higher than this preset value, the system marks it as a safe area. These safe areas have good passage conditions and are suitable as evacuation routes or temporary shelters. At the same time, the system will continuously monitor the change of the safety index in these areas, and once it is lower than the preset value, it will promptly update the safety status of the area.

[0066] On the basis of determining the safe area, the system begins to optimize and adjust the first control strategy. First, the system checks whether the evacuation routes planned in the first control strategy pass through the safe area. If it is found that a certain section of the route passes through an area with a low safety index, an alternative route will be searched for, and a route passing through the safe area will be preferentially selected. Correspondingly, the system adjusts the indication directions of the emergency lighting devices along the way to ensure that people are guided to evacuate along a safer route. For the adjustment of the display content, the system will add corresponding prompt information according to the safety conditions of different areas. For example, warning messages such as "Please speed up and pass through" will be displayed on the lighting devices in areas with a low safety index, and prompt information such as "Safe Passage" will be displayed in the safe area.

[0067] S105, obtain the personnel density, personnel location and personnel type of each area, and combine the personnel density, personnel location and personnel type to adjust the second control strategy to generate a target control strategy.

[0068] To further improve the accuracy and pertinence of evacuation guidance, in this embodiment, on the basis of the second control strategy, the personnel distribution characteristics are introduced for optimization and adjustment. The system obtains the personnel distribution information of each area in real time through multi-source data acquisition devices such as video surveillance devices, crowd density sensors and identity recognition systems in the building. Among them, the personnel density is obtained by image recognition or infrared detection to count the number of people per unit area; the personnel location is based on the indoor positioning system to track the specific area where the individual is located in real time; the personnel type includes identification information of special groups such as the elderly, children, and people with limited mobility, and this information can be obtained through pre-registered identity information or intelligent recognition systems.

[0069] The system first generates a congestion index for each area according to the obtained personnel density data. The congestion index is directly proportional to the personnel density. When the personnel density in a certain area exceeds the safe evacuation threshold, the congestion index of that area will increase significantly. At the same time, the system calculates the evacuation difficulty of each area based on the personnel location information and in combination with the building structure characteristics. The assessment of the evacuation difficulty takes into account multiple factors, including the distance to the nearest safe exit, the width of the passage, the number of turns, etc., and these factors jointly affect the convenience of evacuation.

[0070] After obtaining the congestion index and evacuation difficulty, the system optimizes and adjusts the indication directions in the second control strategy. For areas with a high congestion index, the system will preferentially select adjacent areas with a low personnel density as the evacuation target areas and adjust the indication directions of the emergency lighting devices accordingly to relieve personnel congestion; for areas with a greater evacuation difficulty, the system will weigh the path length and the passage difficulty and select the route with the lowest comprehensive evacuation cost as the guiding direction. When an area has both congestion and evacuation difficulties at the same time, the system gives priority to considering the congestion degree for adjusting the evacuation direction to prevent secondary disasters caused by the aggravation of congestion.

[0071] In addition, the system also makes personalized adjustments to the displayed content based on the recognized personnel type information. For example, in areas with a large number of elderly or children, the system will increase the display frequency and duration of the indication signs and use simpler and more intuitive prompts; in areas where people with limited mobility are concentrated, the system will give priority to recommending barrier-free passages and display the location information of barrier-free facilities such as elevators and ramps.

[0072] Based on the above embodiments, as an optional implementation manner, in S105, combining the personnel density, personnel location, and personnel type to adjust the second control strategy to generate the target control strategy specifically includes S51 - S55: S51, generate a congestion index for each area according to the personnel density, and the congestion index is directly proportional to the personnel density.

[0073] To achieve more accurate evacuation guidance, this embodiment provides a method for optimizing the control strategy considering personnel characteristics. The system first obtains the real-time personnel density data of each area through the crowd density sensor and generates a congestion index by using standardized processing. The congestion index calculation uses a quantization standard from 0 to 100, and the calculation formula is: congestion index = 100×(D / Dmax), where D is the measured personnel density (persons per square meter), and Dmax is the maximum personnel density allowed for safe evacuation (taking 4 persons per square meter). When the measured personnel density exceeds Dmax, the congestion index directly takes the value of 100, indicating that the area is in a severely congested state.

[0074] S52, generate the evacuation difficulty of each area according to the personnel location.

[0075] At the same time, the system evaluates the evacuation difficulty of each area based on the personnel positioning information. The calculation of the evacuation difficulty comprehensively considers factors such as the distance to the nearest safety exit, the width of the passage, and the number of turns. The specific calculation uses a weighted scoring method: evacuation difficulty = 0.5×(L / Lmax)+0.3×(1 - W / Wmax)+0.2×(N / Nmax), where L is the distance to the safety exit, W is the minimum width of the passage, N is the number of turns required, and each item is normalized by dividing it by its corresponding standard value. Lmax (the standard value of the maximum distance) = 45 meters, Wmax (the standard value of the passage width) = 2.4 meters, which are determined based on the evacuation distance requirements specified in the building fire protection code. Nmax (the standard value of the maximum number of turns) = 4 times, which is a reasonable upper limit of the number of turns determined based on actual evacuation experience. This value takes into account that too many turns will increase the evacuation difficulty and time and may cause the risk of people getting lost. The evacuation difficulty also uses a quantization standard from 0 to 100, and the larger the value, the more difficult the evacuation.

[0076] S53, in combination with the crowding index and evacuation difficulty, adjusts the second indication direction in the second control strategy to generate a target indication direction.

[0077] Based on the calculated crowding index and evacuation difficulty, the system starts to adjust the indication direction in the second control strategy. The adjustment principle is as follows: when the crowding index of a certain area exceeds 80, the adjacent area with a lower population density is preferentially selected as the evacuation direction, even if this may increase the evacuation path length; when the evacuation difficulty exceeds 70, the system will search for an alternative route with lower difficulty, especially avoiding complex paths that require multiple turns. In the case where both the crowding index and evacuation difficulty are relatively high, the system gives priority to reducing the degree of crowding to prevent personnel congestion. These adjustments generate a new target indication direction, ensuring that the evacuation path takes into account both the passage efficiency and avoids potential congestion risks.

[0078] Based on the above embodiments, as an alternative implementation, in S53, adjusting the second indication direction in the second control strategy in combination with the crowding index and evacuation difficulty to generate a target indication direction specifically includes S531 - S535: S531, determines the areas with a crowding index greater than the preset threshold as crowded areas, and determines the areas with an evacuation difficulty greater than the preset level as difficult evacuation areas.

[0079] The system first sets the key parameter thresholds: the preset threshold of the crowding index is set to 80, that is, when the population density of the area reaches 80% of the maximum allowable density, it is marked as a crowded area; the preset level of the evacuation difficulty is set to 70, that is, when the evacuation difficulty index of the area exceeds 70, it is marked as a difficult evacuation area. The setting of these thresholds is based on the analysis of a large number of evacuation drill data, which can not only detect potential risks in a timely manner but also avoid excessive interference with the normal evacuation order.

[0080] S532, for the crowded areas, takes the adjacent areas with a crowding index less than the preset threshold as the evacuation target areas, and adjusts the indication direction of the emergency lighting equipment to the direction pointing to the evacuation target areas.

[0081] For the positions identified as crowded areas, the system will analyze the crowding index of all its adjacent areas and select the areas with a crowding index lower than the preset threshold of 80 as the evacuation target areas. When determining the evacuation target areas, the system uses a neighborhood search algorithm. First, it checks the directly adjacent areas. If there are no areas that meet the conditions, it expands the search range to the secondary adjacent areas until a suitable evacuation target area is found. Subsequently, the system adjusts the indication direction of the emergency lighting equipment in the crowded areas to the direction angle pointing to these evacuation target areas to relieve the congestion by dispersing the crowd.

[0082] S533. For areas with difficult evacuation, the areas with evacuation difficulty less than the preset level and the shortest path from the current location are used as alternative evacuation areas, and the indication direction of the emergency lighting equipment is adjusted to point to the direction of the alternative evacuation areas.

[0083] For areas with difficult evacuation, the system uses an improved Dijkstra shortest path algorithm to search for areas with evacuation difficulty lower than the preset level of 70 and the shortest travel distance as alternative evacuation areas. During the search process, the system calculates the weighted sum of the path length and evacuation difficulty to obtain the path with the lowest comprehensive cost. For example, if there are multiple optional paths from a certain area to the safety exit, the system will select the path with the lowest total cost after comprehensively considering the distance and evacuation difficulty, and use the starting direction of this path as the indication direction of the emergency lighting equipment.

[0084] S534. When the same area simultaneously meets the conditions of a crowded area and an area with difficult evacuation, the evacuation direction is adjusted according to the crowding index.

[0085] When the system finds that a certain area simultaneously meets the conditions of a crowded area (crowding index > 80) and an area with difficult evacuation (evacuation difficulty > 70), it gives priority to solving the crowding problem. This is because during a fire evacuation, overcrowding of people may lead to secondary disasters such as stampedes, causing more serious consequences. At this time, the system will follow the processing method for crowded areas, and first guide people to adjacent areas with a lower crowding index, even if the evacuation difficulty of these areas may be relatively high. At the same time, the system will increase the monitoring frequency of these areas, and once a new congestion risk is detected, it will immediately make the next round of direction adjustments.

[0086] S535. Use the adjusted indication direction of the emergency lighting equipment as the target indication direction.

[0087] Finally, the system integrates all the adjusted indication directions into the final target indication direction and distributes it to each emergency lighting equipment in a unified data format. The indication direction of each equipment contains accurate direction angle values to ensure that direction indicators such as arrows can accurately point to the expected evacuation path. The system supports dynamic updates of the target indication direction, and the response cycle is usually controlled within 3 seconds to ensure timely response to various situation changes during the evacuation process.

[0088] S54. According to the type of people, adjust the second display content in the second control strategy to generate the target display content.

[0089] S55. Use the target indication direction and the target display content as the target control strategy.

[0090] For the optimization of the display content, the system makes personalized adjustments according to the recognized types of people. The types of people include special groups such as the elderly, children, and people with limited mobility, as well as ordinary adults. For different types of people, the system generates corresponding target display content: in areas where the elderly or children are concentrated, larger font sizes and simple graphic signs are adopted, and the display time is increased; in areas with more people with limited mobility, the information on barrier-free access is preferentially displayed, and the locations of barrier-free facilities such as elevators and ramps are marked; in ordinary areas, a standardized display method is maintained. At the same time, the system will add a time reminder of the expected arrival at the safety exit to the display content according to the movement speed characteristics of different groups of people.

[0091] Finally, the system integrates the optimized target indication direction and target display content into the final target control strategy. This strategy is sent to each emergency lighting device in a unified data format, including specific pointing angles, display texts, graphic signs and other detailed parameters. The system supports real-time updates of the target control strategy and can adjust relevant parameters in a timely manner according to the dynamic changes in the personnel distribution situation.

[0092] After generating the target control strategy, it also includes: When an abnormal state of an emergency lighting device is detected, obtain the location information of the emergency lighting device in the abnormal state; based on the location information, call the standby emergency lighting device adjacent to the location of the emergency lighting device in the abnormal state; send the target control strategy to the standby emergency lighting device.

[0093] To ensure the continuous and reliable operation of the evacuation guidance system, this embodiment provides a method for fault response and backup switching of emergency lighting devices. The system monitors the working status of emergency lighting devices in real time, including key parameters such as power supply status, communication status, and display function status. When an abnormal state of the device is detected, such as the power supply voltage being lower than 85% of the rated value, the communication being interrupted for more than 5 seconds, or the local failure of the LED display module, the system will immediately start the fault handling process.

[0094] The system first obtains the accurate location information of the emergency lighting device with the abnormality, including the floor where it is located, the area number, and the specific coordinates in the building floor plan. The acquisition of the location information is based on the pre-established device deployment map and the real-time positioning system to ensure that the spatial location of the faulty device can be accurately identified. After determining the location of the faulty device, the system will query the device deployment database to identify all standby emergency lighting devices adjacent to the location of the faulty device. The selection of standby devices follows the "proximity principle", preferentially calling the standby device with the shortest straight-line distance to the faulty device, and at the same time considering whether the coverage angle of the standby device can effectively replace the indication function of the faulty device.

[0095] To ensure the continuity of evacuation guidance, the system adopts a seamless switching mechanism. After determining the available backup devices, the current target control strategy is immediately sent to these backup devices. The process of sending the control strategy includes complete information packets such as device activation instructions, direction indication parameters, and display content data. The system will confirm the response status of the backup devices. Only after receiving the normal operation confirmation signal from the backup devices will the switching process be completed. If the preferred backup device also malfunctions, the system will automatically call the sub-optimal backup device to ensure that effective evacuation guidance is always maintained.

[0096] Based on the above method, the present application also discloses a control system for emergency lighting devices, as Figure 2 shown, Figure 2 is a schematic structural diagram of a control system for emergency lighting devices provided by an embodiment of the present application. The system includes: an acquisition module, a combination module, a generation module, a first adjustment module, and a second adjustment module; wherein, The acquisition module is used to acquire the fire data, environmental data, and structural data of the target building; the combination module is used to generate fire spread data by combining the environmental data and structural data on the basis of the fire data; the generation module is used to generate a first control strategy for the emergency lighting devices in the target building according to the fire spread data, and the control strategy includes the display content and indication direction of the emergency lighting devices; the first adjustment module is used to acquire the smoke concentration and temperature in each area of the target building, and adjust the first control strategy according to the smoke concentration and temperature to generate a second control strategy; the second adjustment module is used to acquire the personnel density, personnel location, and personnel type in each area, and adjust the second control strategy by combining the personnel density, personnel location, and personnel type to generate a target control strategy.

[0097] It should be noted that: when the system provided in the above embodiment realizes its functions, only the above-mentioned division of each functional module is used for illustration. In practical applications, the above functions can be allocated to different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the system and method embodiments provided in the above embodiments belong to the same concept, and the specific implementation process can be seen in the method embodiment, which will not be elaborated here.

[0098] Please refer to Figure 3 , which is a schematic structural diagram of an electronic device provided by an embodiment of the present application. As Figure 3 shown, the electronic device 1000 may include: at least one processor 1001, at least one network interface 1004, a user interface 1003, a memory 1005, and at least one communication bus 1002.

[0099] Among them, the communication bus 1002 is used to realize the connection and communication between these components.

[0100] Among them, the user interface 1003 may include a display screen (Display) and a camera (Camera). Optionally, the user interface 1003 may further include a standard wired interface and a wireless interface.

[0101] Among them, the network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface).

[0102] Among them, the processor 1001 may include one or more processing cores. The processor 1001 connects various parts within the entire server through various interfaces and lines, and executes various functions of the server and processes data by running or executing instructions, programs, code sets or instruction sets stored in the memory 1005, and by calling the data stored in the memory 1005. Optionally, the processor 1001 may be implemented in at least one hardware form of digital signal processing (DSP), field-programmable gate array (FPGA), or programmable logic array (PLA). The processor 1001 may integrate one or a combination of several of a central processing unit (CPU), a graphics processing unit (GPU), and a modem, etc. Among them, the CPU mainly processes the operating system, user interface, application programs, etc.; the GPU is responsible for the rendering and drawing of the content to be displayed on the display screen; the modem is used to process wireless communication. It can be understood that the above-mentioned modem may not be integrated into the processor 1001 and may be implemented separately through a single chip.

[0103] Among them, the memory 1005 may include a Random Access Memory (RAM), or may also include a Read-Only Memory. Optionally, the memory 1005 includes a non-transitory computer-readable storage medium. The memory 1005 can be used to store instructions, programs, codes, code sets or instruction sets. The memory 1005 may include a program storage area and a data storage area. Among them, the program storage area can store instructions for implementing the operating system, instructions for at least one function (such as touch function, sound playback function, image playback function, etc.), instructions for implementing the above-mentioned method embodiments, etc.; the data storage area can store the data involved in the above-mentioned method embodiments. Optionally, the memory 1005 may also be at least one storage device located far from the aforementioned processor 1001. As Figure 3 shown, in the memory 1005 as a computer storage medium, it may include an operating system, a network communication module, a user interface module, and an application program for a control method of an emergency lighting device.

[0104] In Figure 3 the electronic device 1000 shown, the user interface 1003 is mainly used to provide an input interface for the user to obtain the data input by the user; and the processor 1001 can be used to call the application program for a control method of an emergency lighting device stored in the memory 1005. When executed by one or more processors, the electronic device is caused to execute the method as described in one or more of the above embodiments.

[0105] An electronic device-readable storage medium stores instructions. When executed by one or more processors, the electronic device is caused to execute the method as described in one or more of the above embodiments.

[0106] It should be noted that for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that this application is not limited by the described action sequence, because according to this application, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0107] In the above embodiments, the descriptions of the various embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0108] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling, direct coupling, or communication connection between each other can be through some service interfaces. The indirect coupling or communication connection of the device or unit can be in electrical or other forms.

[0109] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0110] In addition, each functional unit in various embodiments of the present application can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0111] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present application. And the aforementioned memory includes: various media such as USB flash drives, mobile hard disks, magnetic disks, or optical discs that can store program codes.

[0112] The above are only exemplary embodiments of the present disclosure, and the scope of the present disclosure cannot be limited thereby. That is, any equivalent changes and modifications made in accordance with the teachings of the present disclosure still fall within the scope covered by the present disclosure. Those skilled in the art will easily think of other implementation schemes of the present disclosure after considering the specification and practicing the present disclosure. The present application aims to cover any variations, uses, or adaptive changes of the present disclosure. These variations, uses, or adaptive changes follow the general principles of the present disclosure and include common general knowledge or conventional technical means in the technical field not described in the present disclosure. The specification and the embodiments are only regarded as exemplary, and the scope and spirit of the present disclosure are defined by the claims.

Claims

1. A control method for an emergency lighting device, characterized in that, The method includes: Obtaining the fire situation data of the target building, the environmental data of the target building, and the structural data of the target building; Based on the fire situation data, combining the environmental data and the structural data to generate fire spread data; Generating a first control strategy for the emergency lighting equipment in the target building according to the fire spread data, where the first control strategy includes the display content and indication direction of the emergency lighting equipment; Obtaining the smoke concentration and temperature of each area in the target building, and adjusting the first control strategy according to the smoke concentration and the temperature to generate a second control strategy; Obtaining the personnel density, personnel location, and personnel type of each area, and adjusting the second control strategy by combining the personnel density, the personnel location, and the personnel type to generate a target control strategy.

2. The control method of the emergency lighting device according to claim 1, wherein The step of generating fire spread data by combining the environmental data and the structural data based on the fire situation data includes: Determining the initial fire spread direction according to the fire ignition point location and combustion intensity in the fire situation data; Calculating the fire spread rate according to the air circulation parameter and combustible distribution parameter in the environmental data; Based on the fire resistance rating of the building material and the spatial connectivity relationship in the structural data, correcting the fire spread rate to generate a target fire spread rate; Combining the initial fire spread direction and the target fire situation to generate fire spread data, where the fire spread data includes the spread range and intensity of the fire at different time points.

3. The control method of the emergency lighting device according to claim 1, wherein The step of generating a first control strategy for the emergency lighting equipment in the target building according to the fire spread data includes: Determining the target area affected by the fire according to the fire spread data; Determining the safe evacuation path in the target building according to the target area, and generating a first indication direction and a first display content of the emergency lighting equipment according to the safe evacuation path; Taking the first indication direction and the first display content as the first control strategy of the emergency lighting equipment.

4. The control method of the emergency lighting device according to claim 3, characterized in that, The step of adjusting the first control strategy according to the smoke concentration and the temperature to generate a second control strategy includes: Generating a safety index for each area according to the smoke concentration and the temperature; wherein, the smoke concentration is inversely proportional to the safety index, and the temperature is inversely proportional to the safety index; Taking the areas with the safety index higher than the preset index as safe areas; Based on the safe areas, adjusting the first indication direction and the first display content of the emergency lighting equipment in the first control strategy to generate a second control strategy.

5. The control method of the emergency lighting device according to claim 1, characterized in that The step of adjusting the second control strategy by combining the personnel density, the personnel location, and the personnel type to generate a target control strategy includes: Generating a congestion index for each area according to the personnel density, where the congestion index is directly proportional to the personnel density; Generating the evacuation difficulty of each area according to the personnel location; Combining the congestion index and the evacuation difficulty to adjust the second indication direction in the second control strategy to generate a target indication direction; Adjust the second display content in the second control strategy according to the type of personnel to generate target display content; Use the target indication direction and the target display content as the target control strategy.

6. The control method of the emergency lighting device according to claim 5, characterized in that, The adjusting the second indication direction in the second control strategy according to the crowding index and the evacuation difficulty to generate a target indication direction includes: Determine the area where the crowding index is greater than the preset threshold as a crowded area, and determine the area where the evacuation difficulty is greater than the preset level as an evacuation difficult area; For the crowded area, use the adjacent area where the crowding index is less than the preset threshold as the evacuation target area, and adjust the indication direction of the emergency lighting device to point to the direction of the evacuation target area; For the evacuation difficult area, use the area with the shortest path to the current position where the evacuation difficulty is less than the preset level as the alternative evacuation area, and adjust the indication direction of the emergency lighting device to point to the direction of the alternative evacuation area; When the same area satisfies both the crowded area and the evacuation difficult area at the same time, adjust the evacuation direction according to the crowding index; Use the adjusted indication direction of the emergency lighting device as the target indication direction.

7. The control method of the emergency lighting device according to claim 1, characterized in that After generating the target control strategy, it further includes: When it is detected that the emergency lighting device is in an abnormal state, obtain the location information of the emergency lighting device in the abnormal state; Based on the location information, call the standby emergency lighting device adjacent to the location of the emergency lighting device in the abnormal state; Send the target control strategy to the standby emergency lighting device.

8. A control system for an emergency lighting device, characterized in that, The system includes: an acquisition module, a combination module, a generation module, a first adjustment module and a second adjustment module; wherein, The acquisition module is used to acquire the fire data, the environmental data and the structural data of the target building; The combination module is used to generate fire spread data by combining the environmental data and the structural data on the basis of the fire data; The generation module is used to generate a first control strategy for the emergency lighting device in the target building according to the fire spread data, and the control strategy includes the display content and the indication direction of the emergency lighting device; The first adjustment module is used to acquire the smoke concentration and temperature of each area in the target building, and adjust the first control strategy according to the smoke concentration and the temperature to generate a second control strategy; The second adjustment module is used to acquire the personnel density, personnel location and personnel type of each area, and adjust the second control strategy by combining the personnel density, the personnel location and the personnel type to generate a target control strategy.

9. An electronic device, characterized in that, It includes a processor, a memory, a user interface and a network interface. The memory is used to store instructions. The user interface and the network interface are used to communicate with other devices. The processor is used to execute the instructions stored in the memory so that the electronic device executes the method according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, Stores a computer program that can be loaded and executed by a processor to execute the method according to any one of claims 1-7.

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