58results about How to "Improve evacuation efficiency" patented technology

The invention relates to the technical field of path planning, in particular to an emergency evacuation path planning method and system and a storage medium. The method comprises the following steps: obtaining building layout data; performing building structure topology analysis on the building layout data to generate building structure layout data; arranging monitoring equipment according to the building structure layout data to obtain monitoring equipment deployment data; performing environment perception on the monitoring equipment based on the monitoring equipment deployment data so as to generate environment perception data; performing static image acquisition on the environment sensing data to obtain a static environment image; performing channel connection on the static environment image to generate building channel distribution data; and performing potential dangerous channel area identification on the building channel distribution data through the static environment image to generate potential dangerous channel area data. According to the invention, by integrating environment perception, dynamic video stream analysis and intelligent path scheduling, the flexibility and accuracy of emergency evacuation path planning are improved.

The invention discloses a low-power-consumption fire behavior real-time auxiliary first aid method and system based on edge calculation, relates to the technical field of fire behavior auxiliary first aid, and is suitable for crowded areas of public buildings such as schools, hospitals, high-rise buildings, hotels and shopping malls. Environmental information such as personnel density, temperature and smoke concentration is collected in real time, and fire detection and dynamic evacuation path planning are carried out by using an edge calculation unit. The intelligent terminal adjusts the brightness and the color based on the dynamic path, and sound reminding is assisted, so that clear audio-visual guidance is realized. Under the condition of fire outage, through the optimized lighting strategy, the lighting strategy of each area is dynamically adjusted, so that the energy consumption is reduced, the service time of a standby power supply is effectively prolonged, and the safety and efficiency of personnel evacuation are effectively guaranteed.

The invention relates to the technical field of fire safety, in particular to a multi-dimensional fire safety management system which comprises an environment monitoring module, a data analysis module, a real-time video monitoring module, an intelligent decision module and a self-adaptive evacuation navigation module. The data analysis module processes and analyzes the collected environmental data, the real-time video monitoring module monitors the internal situation of the building by adopting a high-resolution camera, the intelligent decision-making module generates a fire coping strategy, and the self-adaptive evacuation navigation module dynamically generates and updates a safe evacuation route in the building. The self-adaptive evacuation navigation module is introduced, so that a safe evacuation route in the building can be dynamically generated and updated in real time. The system can adjust the evacuation route according to the current environmental condition by analyzing the fire behavior development and the personnel distribution condition in the building in real time, thereby effectively preventing the personnel from entering a high-risk area by mistake, and ensuring that the personnel can be quickly and orderly guided to a safe area in an emergency.

The invention relates to the technical field of fire-fighting ventilation systems, in particular to a fire-fighting ventilation control method, device and system and a storage medium. The control method comprises the following steps: fire detection: detecting the occurrence of a fire by using a fire sensor installed in a building; fire positioning: determining the specific position of the fire according to feedback information of the fire sensor; and fan control: dynamically adjusting the operation state of a ventilation fan according to the fire position and the building ventilation system structure. By introducing an intelligent and dynamic control method, quick response and effective operation of the fire-fighting ventilation system when a fire occurs are realized. In combination with a modern sensor technology, an artificial intelligence algorithm and an Internet of Things platform, the system can monitor the fire situation in real time, make a quick response, optimize a ventilation strategy, eliminate smoke, introduce fresh air, and ensure the air quality and personnel safety in a building.

The invention relates to the technical field of building safety, in particular to a fire-fighting evacuation path optimization and personnel positioning guide system, which comprises a data acquisition module, a personnel positioning module, a path optimization module and a guide control module, wherein the data acquisition module is used for acquiring environment data, fire information and building structure data in a building in real time; the personnel positioning module is used for collecting position information of each person in real time based on a wireless positioning technology; the path optimization module is used for calculating and generating an optimal evacuation path; and the guide control module is used for generating and outputting an evacuation guide instruction in real time and indicating the personnel to evacuate along the optimal path. According to the invention, environment data, fire information and personnel position information are collected in real time, a multi-objective optimization algorithm is adopted to dynamically calculate an optimal evacuation path, and an evacuation guidance instruction is accurately generated, so that the problems of insufficient path adaptability and guidance lag of a traditional system in a complex environment are solved.

The invention relates to the technical field of fire fighting systems, and discloses an intelligent fire fighting system based on the Internet of Things and artificial intelligence technology, and the system can timely discover fire hazards and perform early warning by monitoring and intelligently analyzing the fire fighting safety of a building in real time, thereby effectively preventing the occurrence of a fire. When a fire occurs, the system can quickly transfer fire extinguishing power and automatically generate and optimize an optimal fire extinguishing and escape strategy, and the escape strategy guides personnel to escape through the guide module, so that the efficiency and safety of fire extinguishing rescue and personnel evacuation are improved; besides, the intelligent fire-fighting monitoring platform provides a visual user interface, supports real-time monitoring and decision-making command of firefighters, and realizes comprehensive control of a fire scene. The limitation of a traditional fire safety means in complex scenes is overcome, intelligence, automation and high efficiency of fire safety work are achieved, and safety is improved.

The invention provides an intelligent fire-fighting monitoring and early warning platform and method combined with the Internet of Things, and relates to the technical field of fire-fighting early warning, and the method comprises the steps: determining a site type through an intelligent building space and a hazard source, mining related combustible materials and related explosives, and building a fire-fighting risk mapping table; determining a first edge computing node set according to the influence range of the fire scene based on a distributed computing core; determining a second edge computing node set according to the spreading path of the fire scene, and configuring an edge computing network; and establishing a fire emergency response mechanism based on the edge computing network. According to the method, the technical problems of low crowd evacuation efficiency and confusion caused by the fact that a matched crowd evacuation strategy cannot be accurately set due to the fact that fire monitoring data cannot be rapidly analyzed and processed in a traditional fire monitoring and early warning method can be solved, the crowd evacuation efficiency and safety can be remarkably improved, and the crowd evacuation experience is improved. Therefore, the timeliness and accuracy of fire emergency response are improved.

The invention relates to the field of bus scheduling and path optimization, and provides a passenger bus connection method, device and equipment under subway operation interruption, and the method comprises the steps: building a passenger transfer demand distribution randomness model based on historical data, the historical data being passenger transfer demand data; determining a passenger evacuation strategy according to the fault station and the passenger transfer demand distribution randomness model; determining a candidate bus route set based on a passenger evacuation strategy; constructing a bus connection model based on the candidate bus route set, and determining an optimization target taking minimization of total delay as the bus connection model; the total delay is determined according to the delay of common passengers, the delay of passengers who do not get on the bus successfully and the delay of detained passengers; and solving the optimization target based on a genetic algorithm, and outputting an optimal solution. According to the invention, the defect of low scheduling efficiency of a traditional single line connection method in the prior art is overcome, the evacuation efficiency is improved, and passenger delay is reduced.

The application provides a full-automatic driving A-type vehicle pneumatic emergency safety device and belongs to the technical field of rail transit. The control cabinet comprises two groups of vertical skeletons, the vertical skeletons have stands arranged in two sections and sliding on guide sliding blocks, the two sections of the stand are hingedly connected, the bottom end of the stand is connected with a traction steel wire and is wound on a retractable steel wire roller, when evacuating, the lower section of the stand of the control cabinet moves downward along the guide sliding block and is separated from the guide sliding block, the retractable steel wire roller and the traction steel wire pull the lower end of the stand to deflect, then the upper section of the stand moves downward along the guide sliding block so that the top surface of the control cabinet is flush with the vehicle floor, the hiding of the control cabinet is realized under the condition that the space at the bottom of the vehicle is limited, an auxiliary folding ramp is arranged on the vehicle floor and at the side of the control cabinet close to the vehicle head, so that the driver and the passenger in the vehicle head can cross the control cabinet and evacuate through the auxiliary folding ramp, the evacuation congestion problem is avoided, and the safety of the vehicle is higher.

The utility model relates to the technical field of evacuation platforms, in particular to a stepped evacuation platform. According to the technical scheme, the evacuation platform comprises an evacuation platform body and a mounting plate mounted at one end of the evacuation platform body, and further comprises a ladder mechanism rotationally connected to the mounting plate, located at one end of the evacuation platform body and used for evacuating people. The ladder mechanism, the rebound mechanism, the button mechanism and other structures are matched, operation of the button mechanism is simple and easy to understand, special training is not needed, and a user can rapidly master an operation method in an emergency. Moreover, the steps of the evacuation platform can be rapidly unfolded after the button is pressed, a timely channel is provided for evacuating crowds, the evacuation efficiency is improved, and meanwhile the folded steps can be rapidly closed through a hook on a pressing mechanism. In addition, the stepped evacuation platform adopts a folding design, so that the space is saved and the storage is convenient. And in case of emergency, the stability and safety of the evacuation channel can be ensured.

The invention relates to the technical field of escape corridors, and discloses an escape corridor for high-rise fire evacuation and a use method of the escape corridor. A protective net; an escape hole; one end of the escape pipeline is connected with the escape hole, the other end of the escape pipeline extends into the building, and a fireproof door is arranged at the other end of the escape pipeline; a waterproof layer; the slide assembly is arranged in the escape corridor body in the vertical direction, an escape platform connected with the escape hole is arranged on the side, close to the building, of the slide assembly, and the slide assembly is used for evacuees to slide to the ground from the escape hole; an emergency lighting assembly; the smoke exhaust assembly is arranged in the escape pipeline; and the alarm device is arranged on the escape corridor body and used for giving an alarm when a fire disaster occurs. According to the method, the evacuation efficiency is improved, the operation cost is reduced, and an innovative solution is provided for safe fire evacuation of the high-rise building.

The invention relates to the technical field of building monitoring, and discloses an intelligent omnibearing automatic building monitoring system which comprises a monitoring module, an alarm and voice broadcast module, a light control module, an emergency rescue tool module and a master control center. According to the system, through the high-definition camera and various sensors, dead-corner-free monitoring of a shopping mall is achieved, abnormal conditions can be found in time, real-time data can be provided, the alarm and voice broadcast module can rapidly transmit information, it is ensured that people can be rapidly indicated in emergency, the evacuation efficiency is improved, and the system is safe and reliable. And rescue voice can be broadcasted according to the position information of persons who cannot be self-rescued and recognized by the monitoring module, mutual assistance of the persons can be assisted, potential risks can be recognized in real time through the data analysis capability integrated by the master control center, countermeasures can be automatically triggered, manual intervention is reduced, safety is improved, and automatic unlocking and intelligent prompting functions of the emergency rescue tool module are achieved. And it is ensured that when an emergency occurs, related rescue tools can be rapidly acquired.

The present application provides a method and system for predicting crowd evacuation congestion propagation based on a knowledge graph, which relates to the technical field of crowd evacuation computer simulation. By constructing a crowd evacuation knowledge graph, the path subgraph at each moment and the observation information of each node are extracted; the path subgraph and the observation information of each node are processed by multi-layer graph convolution to obtain the spatial correlation characteristics of congestion propagation; and the dynamic time characteristics of congestion propagation are obtained by using an LSTM network; the spatial correlation characteristics and the dynamic time characteristics are fused to obtain the crowd density of the future time slice of the road section; the congestion propagation graph is determined according to the crowd density of the road section and the connectivity of each road section in time and space. In this way, taking into account the current crowd congestion state, it is possible to predict in real time which road sections will be affected in the future, which is conducive to timely formulating corresponding congestion relief strategies and improving the efficiency of crowd evacuation.

The present invention relates to the technical field of revolving doors, and discloses a revolving door access control device, including a revolving door overall frame, a driving assembly is installed on the inner side of the top of the revolving door overall frame, a rotating joint is fixedly connected to the bottom of the driving assembly, a column is installed below the rotating joint, four equally spaced outer door frames are fixedly connected to the circumference of the column, and a connecting plate is hingedly connected to the inner upper end of each outer door frame on the side away from the column. When it is necessary to evacuate people in a public place, this revolving door access control device can start a bidirectional motor, which will drive two screw rods to rotate, and a threaded block threadedly connected to the screw rod will move in a direction away from the column. When the threaded block moves, it will move the connecting plate through a slider, so that the connecting plate and the inner door frame rotate, so that the four inner door frames are fully unfolded, and then people can pass directly from the middle position, so as to improve the evacuation efficiency of public places and reduce the difficulty of evacuation.

The invention discloses an evacuation path planning system based on spontaneous geographic information, and relates to the field of evacuation path planning. The invention aims to solve the problem of low evacuation efficiency caused by an evacuation path obtained by an existing evacuation path planning method. The method comprises the following steps: searching and acquiring basic data of a target area on a social media platform by utilizing a place name of the target area; the target area basic data comprises a description text and image data; the basic data preprocessing module is used for preprocessing basic data of a target area; obtaining a text element set and a picture element set by utilizing the preprocessed basic data of the target area; constructing an element library by utilizing the text element set and the picture element set; and assigning weights to the elements in the element library, thereby setting an evacuation path according to the element weights. The method is used for drawing the evacuation path.

The invention relates to the technical field of intelligent road signs, in particular to an intelligent road sign indicating system based on route planning, and the system comprises an intelligent road sign which comprises a direction sign, a display touch screen and an alarm lamp, and is used for indicating the advancing direction to a user, displaying an advancing route and a marker picture, and indicating the advancing direction of an emergency shelter in an emergency; the interaction unit is used for receiving a destination input by the user, marking the user and judging whether the user on the advancing route deviates from the advancing route or not; the planning unit is used for planning a travel route according to the destination; and the cruise unmanned aerial vehicle is used for collecting road condition information, performing shielding detection and driving the intelligent road sign to advance to a road sign point location which is not shielded through the interaction unit. Through the arrangement of the device, the optimal advancing route can be quickly planned, and the accuracy of the intelligent road sign is further improved while clear direction guidance is provided.

The present invention relates to the technical field of intelligent road signs, and in particular to an intelligent road sign indication system based on route planning, comprising: an intelligent road sign, including a direction sign, a display touch screen and an alarm light, for indicating the direction of travel to the user and displaying the route and images of markers, and indicating the direction of travel of an emergency shelter in an emergency; an interactive unit, for receiving a destination input by a user and marking the user at the same time, and determining whether the user on the route deviates from the route; a planning unit, for planning the route according to the destination; a cruise drone, for collecting road condition information, and performing occlusion detection and driving the intelligent road sign to travel to an unobstructed road sign point through the interactive unit. The present invention can quickly plan the optimal route by setting the above-mentioned device, and further improve the accuracy of the intelligent road sign while providing clear direction guidance.

The invention discloses an urban disaster emergency management overall circle identification method, a terminal and a storage medium, and the method comprises the steps: obtaining mobile phone signaling data, and recognizing the main residence of residents before and during a disaster according to the mobile phone signaling data; according to the change characteristics of the main residences of the residents before the disaster and during the disaster, drawing residence change OD, and performing clustering analysis on the residence change OD to obtain resident residence change OD clusters; overlapping the boundary of the residential place change OD cluster with a community administrative boundary to determine a disaster prevention overall circle, and visually displaying the disaster prevention overall circle; the invention provides a new disaster emergency management overall planning district division method, the configuration of disaster prevention resources is optimized, and the evacuation efficiency is improved.

The invention discloses an emergency evacuation planning method based on improved ant colony algorithm and genetic fusion, and belongs to the technical field of emergency management and public safety. The method comprises the following steps: constructing a multi-objective optimization model taking minimization of total evacuation time T, total road section risk R and total personnel panic index P as objectives, and solving the multi-objective optimization model based on fusion of an improved ant colony algorithm and a genetic algorithm to obtain an optimal evacuation path scheme. The evacuation efficiency, safety and personnel psychological factors are comprehensively considered, the state transition probability and the pheromone updating strategy of the ant colony algorithm are improved, the global search mechanism of the genetic algorithm is introduced for deep fusion, and finally, the evacuation efficiency can be improved in a complex evacuation scene. And a global optimal evacuation path giving consideration to timeliness, safety and personnel psychological factors is quickly planned, and the evacuation efficiency is effectively improved.

The utility model provides a smoke exhaust window for a building, which belongs to the technical field of fire-fighting doors and windows, and comprises a door frame and a smoke exhaust window, the door frame is fixedly connected with a wall body, the door frame is of a rectangular structure, the smoke exhaust window is embedded in the door frame, a fireproof layer is fixedly connected on the smoke exhaust window, and the fireproof layer is fixedly connected with the smoke exhaust window. The inner side of the door frame is rotationally connected with a turnover mechanism, the turnover mechanism is rotationally connected with the smoke exhaust window through a pin shaft, the smoke exhaust window is used for exhausting smoke from the interior of a building, the turnover mechanism is used for rapidly opening the smoke exhaust window, and the turnover mechanism comprises a first lantern ring, a second lantern ring, a third lantern ring, a fourth lantern ring and a supporting rod. The first lantern ring and the second lantern ring are rotationally connected with the upper top face of the door frame, the third lantern ring and the fourth lantern ring are rotationally connected with the lower bottom face of the door frame, and the problem that the smoke exhaust size of an existing smoke exhaust window is limited by opening of the window, and the smoke exhaust effect is affected can be solved.

The invention relates to the technical field of filter elements, in particular to an anti-overflow filter element and a water purifier.The anti-overflow filter element comprises a shell, a transverse filter layer, a rear carbon layer, a mounting frame, a driving mechanism, blades, a flow turning mechanism and a water outlet, the transverse filter layer and the rear carbon layer are sequentially mounted in the shell from bottom to top, and the transverse filter layer comprises a PP cotton layer and an activated carbon layer; the mounting frame is mounted above a rear carbon layer, the driving mechanism is mounted at the mounting frame, the blades are mounted in the mounting frame, the flow turning mechanism is mounted at the blades, the water outlet is formed in the side wall of the mounting frame, water flow drives the flow turning mechanism to move through the driving mechanism, and the opening speed of the water flow and the flow discharge size are associated through the opening and closing mechanism. And therefore, the flow can be adjusted in a self-adaptive manner through the internal blades when the discharge amount of the flow is small.

The invention relates to the technical field of traffic management, and particularly discloses an intelligent system for processing urban traffic information, which is characterized in that a traffic flow sensor and a high-definition camera are deployed to collect data such as traffic flow, vehicle speed and vehicle density of each branch in real time and transmit the data to a central platform; the system comprehensively analyzes the logicality and credibility of the data through the data accuracy evaluation module to ensure the accuracy of the data; then, the congestion analysis module calculates the congestion coefficient of each branch based on the accurate data, and judges whether congestion occurs or not and classifies the congestion; the evacuation capability analysis module evaluates the evacuation capability of the congestion branches, and finally the branch division and processing module divides the branches into easy evacuation and difficult evacuation according to the evacuation capability, and adopts different management measures, such as improvement of monitoring frequency, early warning and adjustment of signal control, so as to realize intelligent traffic management and quick response.

The invention relates to the technical field of public safety risk assessment, and particularly discloses a crowd simulation-based ramp area public safety risk assessment method, which comprises the following steps of: analyzing distribution of pedestrians on a ramp, interaction characteristics of the pedestrians and environmental factors in real time; a ramp evacuation model based on a speed-density rule, a pedestrian speed heterogeneity rule, a pedestrian ramp interaction rule and a ramp risk assessment model are constructed, and risk coefficients in a ramp are assessed by using the models, so that related personnel are helped to assess the risk bearing capacity of the ramp. According to the speed-density-based method for introducing the mesoscopic model into the microscopic model, the speed of the pedestrians is restricted by the crowd density, and the actual situation is better met. According to the method, the high precision of the microscopic model is reserved, and the calculation efficiency is improved. Through reasonable algorithm design and a calculation method, real-time simulation can be rapidly completed in a high-density crowd environment, and the calculation burden caused by grid refinement is reduced.

The invention relates to the field of map design, and discloses a novel commercial building emergency evacuation map design method comprising the following steps: S1, obtaining indoor layout information and spatial structure data of a commercial building; s2, performing saliency calculation on the indoor landmark according to the earthquake situation saliency, the visual saliency, the individual attribute saliency and the space saliency; s3, extracting landmarks, and establishing a corresponding relationship between landmark levels and map scales; s4, designing a base map element layer, and ensuring that base map elements have relatively low visual saliency; s5, designing a thematic element layer; and S6, superposing the base map element layer and the thematic element layer to generate an emergency evacuation map. According to the method, saliency evaluation and visual design optimization are comprehensively utilized, and gender difference is considered, so that the evacuation efficiency and accuracy of the emergency evacuation map are remarkably improved, and the cognitive pressure of a user under an emergency condition is greatly relieved.

The present invention relates to an intelligent guidance system and method combined with a digital signboard, and belongs to the technical field of accident emergency handling. The system includes a sensing terminal, a computing terminal and a guidance module. The sensing terminal is used to collect evacuation data in a digital twin factory. The guidance module establishes a connection with a number of digital signboards and controls the change of their display content. The computing terminal evaluates the road safety index related to the evacuation route based on the evacuation data sent by the sensing terminal and plans a number of evacuation routes. The guidance module displays a number of evacuation routes in the form of digital signboards according to the road safety index provided by the computing terminal and the current location of the trapped person. Based on virtual reality technology, the present invention uses intelligent algorithms and sensing terminals to obtain relevant environment and crowd information, thereby providing the optimal route for guidance. The present invention displays a variety of guidance route information through digital signboards in virtual scenes to guide people to evacuate quickly to improve evacuation efficiency and safety.

The utility model relates to the technical field of emergency lighting, in particular to an emergency lighting control system, which comprises a controller and emergency indicating lamps arranged in fire-fighting indicating areas. The controller comprises a main control module, a power supply module, a controller lamp panel and an industrial computer; a fire alarm signal interface used for inputting fire alarm signals and a lamp interface used for being connected with an emergency indicating lamp are reserved in the main control module. Compared with the prior art, the emergency lighting control system provided by the utility model at least has the following beneficial effects: the emergency lighting control system can obtain the place where a disaster occurs in the first time and determine the optimal escape route corresponding to each fire-fighting indication area of the whole building; and the emergency indicating lamps at all positions are controlled to display the escape route direction and the distance relative to the emergency exit, so that optimal route guidance is provided for people, the personnel evacuation efficiency is improved, and the risk of disaster injury is reduced.

The application relates to a dynamic guiding sign optimization method, which comprises the following steps: dividing the internal evacuation space of a subway station into multiple cells, and constructing a space discrete model according to the actual space structure, a preset channel connection relationship and a preset evacuation; defining the number of passengers in each cell and the passenger transmission flow between adjacent cells in the current time step, and deducing the evacuation process of the passengers in the multiple cells based on preset supply and demand constraints to construct a cell transmission model; mapping the fire environment parameters to the cell level to correct the traffic capacity of the cell in the fire environment; constructing a dynamic guiding sign optimization model, embedding the uncertainty in the fire environment into the dynamic guiding sign optimization model to form a dynamic guiding sign robust optimization model; and solving the robust optimization model and obtaining the optimal dynamic guiding sign pointing strategy through iterative updating. The intelligent level of evacuation guidance in the fire environment is significantly improved, and effective technical support is provided for the emergency management of large subway stations.

The invention discloses a dynamic environment adaptive high-rise building escape route optimization system and method, and relates to the technical field of high-rise building safety. According to the invention, when fire alarm is triggered, selectable escape paths are dynamically planned according to the position of a person, the environmental evaluation index of each escape path is acquired and analyzed in real time, and environmental factors such as air temperature, harmful gas concentration and oxygen concentration are considered, so that the safety of the escape paths is evaluated. And analyzing in combination with the environment evaluation index and the path state data packet, and calculating a path evaluation index, thereby evaluating the safety and accessibility of the escape path more comprehensively, and ensuring that an optimal escape path is recommended for each person in an emergency.

The invention relates to the technical field of unpacking equipment, in particular to a semi-gloss high-white fiber unpacking machine for non-woven fabric processing, which comprises a support frame, a semi-gloss high-white fiber bale opener, a semi-gloss high-white fiber bale opener and a semi-gloss high-white fiber bale opener, the unpacking funnel is detachably fixed to the top of the supporting frame, a transmission sealing box is arranged on the inner side wall of the unpacking funnel, a transmission part is installed in the transmission sealing box, and the transmission part is fixedly connected with the inner side wall of the unpacking funnel through a plurality of supporting strips; the unpacking machine has the beneficial effects that through the ingenious design of the transmission part, power input from a rocker to precise control over an inserting cone and a cutter are achieved, and the unpacking efficiency is greatly improved. Especially for raw materials such as semi-gloss high-white fibers which are easy to wind and difficult to disperse, the inserting and cutting actions of the cutter are rapid and accurate, and the problems that the fibers are easy to knot and difficult to treat in a traditional unpacking mode are effectively solved.

The invention discloses a scenic spot emergency dispersion route planning method based on an improved A star algorithm, a storage medium, equipment and a computer program product, and the method comprises the steps: carrying out the grid division of a scenic spot, searching for an adjacent grid according to a grid where a tourist is located when an emergency occurs, building a safety cost function, and carrying out the calculation of the safety cost function; calculating the time for the tourist to move to each adjacent grid and a time cost function; establishing a heuristic function according to the Euclidean distance between each adjacent grid and each exit of the scenic area; constructing a total cost function by using a safety cost function, a time cost function and a heuristic function, arranging the total cost function according to a sequence from small to large, and selecting a plurality of first adjacent grids as grids where tourists are located after the tourists move; and for the grid where each tourist is located after the tourist is moved, the above process is repeated until the grid where the tourist is located after the tourist is moved is the exit of the scenic spot, a plurality of paths of the tourist moving from the grid where the tourist is located to the exit of the scenic spot are obtained, and the shortest path is used as a tourist emergency guidance path.