66 results about "Fire evacuation" patented technology

The invention relates to the field of intelligent building safety, and discloses an intelligent fire evacuation guiding method which comprises the following steps: collecting fire information and crowd information, and establishing a dynamic evacuation network model; dynamically calculating the weight of an evacuation path based on the fire information and the crowd information; according to the dynamic weight, an optimal evacuation path in the evacuation area is planned, and an intelligent fire evacuation guidance system is further provided and comprises a data acquisition module used for acquiring fire information and crowd information; the dynamic modeling module is used for constructing a dynamic network model of the evacuation area; the path planning module is used for planning an optimal evacuation path based on the dynamic network model; and the light control module is used for controlling the display state of the path guiding light. According to the invention, through dynamic weight calculation, real-time path optimization, light dynamic adjustment and crowd flow prediction, an efficient, safe and flexible intelligent evacuation guidance effect in a fire scene is realized.

The invention relates to a fire-fighting evacuation path optimization method for a crowded place. The method comprises a sensor module; an image acquisition module; a personnel counting module; a voice broadcast module; and a data processing module. The method comprises the following steps: performing real-time analysis on a monitoring picture acquired by an image acquisition module; for each detected personnel target, extracting a visual feature vector, and performing modeling and prediction on the movement track of the personnel in combination with spatio-temporal context information; a global optimal evacuation strategy is realized; and broadcasting the real-time evacuation strategy obtained by the collaborative evacuation model by voice until all people are evacuated safely. In the evacuation process, the states of people in all areas are obtained in real time, evacuation decisions are dynamically updated, and voice broadcast guidance is carried out. According to the invention, through multi-modal information fusion and a deep learning algorithm, intelligent and personalized evacuation guidance for large-scale crowds is realized, and the evacuation efficiency and safety are effectively improved.

The invention discloses a fire evacuation navigation robot control method based on an improved A * algorithm, and the method comprises the steps: enabling a robot to continuously optimize the pose estimation of the robot through the fusion of laser radar data and odometer data through the Cartographic algorithm, and constructing an accurate map; after a task is accepted, an on-fire area is identified according to a carried infrared flame sensor, active avoidance is performed after the on-fire area is identified, the heuristic function weight is dynamically adjusted through an improved A * algorithm in combination with the path direction and the obstacle density, and the safest evacuation path is planned to reach a specified emergency exit. Meanwhile, by means of the carried binocular camera and laser radar, obstacles and areas with high crowd density along the way can be avoided in real time. According to the method, two heuristic functions of the Manhattan distance and the Euclidean distance are combined and used during node expansion and priority queue processing, the efficiency and precision of path planning can be effectively improved, and after the preliminary path is found, fitting is carried out on the path through the spline curve, so that a smoother and more natural path is generated.

The invention relates to the technical field of evacuation intelligent simulation, in particular to a fire-fighting evacuation path dynamic planning method and system based on digital twinning. In the fire-fighting evacuation path dynamic planning method and system based on digital twinning, a digital twinning environment containing multi-dimensional real-time sensing data such as temperature, smoke and heat radiation intensity is constructed; the method can dynamically analyze space-time evolution characteristics such as fire spreading trend and heat accumulation, further carries out accurate quantitative evaluation on the danger level of each segment of an evacuation path, and meanwhile, integrates video monitoring and wireless positioning information to grasp the specific positions and moving tracks of people in a building in real time, thereby improving the safety and reliability of the evacuation path. The actual flow bottleneck is identified based on the flow direction consistency, the distribution density and the congestion condition of the crowd, and finally, the dynamic danger of the fire environment and the macroscopic flow trend of the crowd are combined, and the passage cost value of each path section is subjected to dual dynamic correction, so that the flow rate of the crowd is improved. And an evacuation path planning result giving consideration to fire hazard avoidance and crowd congestion evacuation is generated, so that the real-time performance and safety of evacuation decision making are effectively improved.

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 embodiment of the invention discloses a BIM-based building fire evacuation analysis method and system. According to the technical scheme provided by the embodiment of the invention, the path cost is adjusted according to different fire stages of the fire evolution process, and the real-time evacuation path is planned based on the path cost, so that the environmental adaptability of the evacuation path can be remarkably improved, the fire evacuation path planning precision is improved, and the evacuation path can respond to the fire evolution. High-temperature areas, dense smoke areas, structure danger areas and crowded nodes are avoided all the time, the risk of path guiding errors caused by disaster changes is greatly reduced, and the escape success rate is increased.

The present invention relates to the field of building safety, and discloses an early warning system for building safety monitoring, including a dust removal module, a fire evacuation guidance module, and a safety monitoring and early warning module. The dust removal module is arranged on a construction site, and is used to collect the dust on the construction site. The fire evacuation guidance module is used to capture the infrared radiation emitted by the body of a person. It is used to obtain the information of the change of the moving position of the person after the capture is successful. It is used to broadcast the evacuation instructions to notify the personnel in the construction site to evacuate immediately. It is used to guide the evacuation route of the personnel. The safety monitoring and early warning module is arranged on the construction site, and is used to issue a buzzer alarm to remind the personnel to pay attention to safe evacuation. The present invention, by setting a dust removal module, a fire evacuation guidance module, and a safety monitoring and early warning module, issues a buzzer alarm to remind the personnel to evacuate, collects the dust on the construction site, and guides the personnel to evacuate the fire when it is detected that there is a safety risk in the tower crane on the construction site.

The invention provides a passenger roller fire personnel evacuation simulation method and system, and the method comprises the steps: building a passenger cabin scene model, carrying out the numerical simulation of a passenger cabin fire, and obtaining the data of a fire product; analyzing a change rule of the fire product, and calculating a fire evacuation speed influence coefficient; improving a particle swarm algorithm, and fusing the fire product data into the improved particle swarm algorithm to obtain a personnel evacuation path optimization model under the fire condition; and simulating a personnel evacuation process in the passenger cabin scene model based on the personnel evacuation path optimization model to obtain an optimal personnel evacuation path under the fire condition. According to the method, the optimization space can be effectively expanded, the capacity of the algorithm for obtaining the globally optimal solution is improved, the optimization capacity of the algorithm in the initial stage is enhanced, and the high-level development capacity is kept in the final stage of search, so that the convergence speed and effect of the algorithm are remarkably improved, and the path optimization result is improved; and the optimal path is ensured to be the shortest path.

The invention relates to the field of fire evacuation, in particular to a cellular automaton-based tunnel group fire personnel evacuation analysis method. The method comprises the following steps: S1, constructing a tunnel group digital model according to the actual structure and size of a tunnel group; s2, dividing grids, and establishing a two-dimensional cellular automaton model; s3, evacuation personnel parameters are set; s4, simulating a fire scene by using the FDS; s5, calculating a relative distance field and a dynamic field; s6, generating a personnel motion model; s7, completing movement of the personnel and judging the number of the personnel in the space; and S8, outputting the evacuation time and the evacuation success rate of the evacuated people. By using the cellular automaton model, the evacuation process of personnel in the tunnel group when a fire occurs can be simulated. According to the method, the tunnel group digital model is constructed, the space of the tunnel group digital model is divided into discrete cells with the same size, and the moving direction of personnel is calculated based on fire data, so that the actual behavior of evacuated personnel can be reflected more truly.

The present invention belongs to the technical field of building safety and evacuation simulation, and discloses an experimental method for collecting baby care behavior data during fire evacuation in high-rise residences based on mixed reality technology. Step 1: Scan the internal environmental information of the experimental high-rise residential building and establish a three-dimensional model of the high-rise residential building; Step 2: Complete the construction of the mixed reality fire scene; Step 3: The subjects wear mixed reality headsets and wearable odor players to conduct the experiment; Step 4: Produce a human dynamic model through volumetric motion capture method; Step 5: To evaluate whether the baby evacuation is successful and mark the successful evacuation experiments; Step 6: Process the collected data and group and number the results for storage. The present invention designs an experiment for baby guardians to carry out fire emergency evacuation while taking care of babies, so as to obtain relevant evacuation behavior data for evacuating with babies in care, providing data support for subsequent simulation and research.

The invention discloses a terminal fire evacuation path optimization method based on an improved A * algorithm, and the method comprises the following steps: (1) analyzing the personnel flow of a terminal, arranging real flight data, and carrying out the preprocessing; (2) simulating an airport terminal personnel flow by using the simulation model, and arranging personnel distribution data; (3) analyzing the reasons of the airport terminal fire, simulating the airport terminal fire by using fire simulation according to the reasons of the high-incidence fire, and obtaining the data of the airport terminal fire products; (4) improving a path planning algorithm, coupling personnel distribution and fire spreading data, and re-planning a congestion path; according to the invention, a new solution thought is provided for terminal fire emergency evacuation, and scientific practical guidance is provided for emergency evacuation in complex environments such as terminals and the like.

The invention discloses a personnel-intensive building fire-fighting evacuation scheme optimization method, and belongs to the crossing field of geographic space intelligent analysis and fire-fighting management, and the method comprises the following steps: creating a fire-fighting evacuation path node table, and constructing a node connection topology network based on the fire-fighting evacuation path node table; calculating a time matrix for evacuating people in each room to each safe place based on the node connection topology network; and selecting an optimal evacuation safety place for each room based on the time matrix, and calculating a shortest path from the room to the corresponding safety place to obtain an optimal evacuation scheme for building fire protection. The method can be used for evaluating the overall time expenditure of the evacuation scheme, and facilitates the optimization of the evacuation scheme for a fire-fighting manager.

The invention relates to the technical field of park monitoring, in particular to a smart park multi-source fire-fighting data dynamic monitoring and real-time analysis system, which comprises a risk early warning unit, a rescue request unit, a visual large screen unit, a rescue planning unit, a diffusion analysis unit and a fire-fighting evacuation unit, and further comprises a state monitoring unit, a real-time analysis unit and a fire-fighting evacuation unit, the state monitoring unit is used for performing state monitoring on a plurality of monitoring areas in the target smart park through the sensor group to obtain first fire-fighting data of the monitoring areas, and the first fire-fighting data of the monitoring areas comprises temperature, smoke concentration and gas concentration of the monitoring areas. Through the combination of the state monitoring unit and the threshold value judgment unit, the system can obtain and analyze fire-fighting data in a park in real time, and timely identify a potential fire risk area, so that the system can quickly respond to a possible fire event, and the fire response speed and efficiency are improved.

The fireproof door comprises a door frame, the door frame comprises a first channel and a second channel, a first fireproof door plate is installed at the first channel, a second fireproof door plate is installed at the second channel, the first fireproof door plate is driven by a first electric door closer, and the second fireproof door plate is driven by a second electric door closer. The second fireproof door plate is driven by a second electric door closer, the first electric door closer and the second electric door closer each comprise a base, and a motor, a control module and a standby power supply are arranged in each base. The technical key points are as follows: bidirectional opening and closing are supported, fireproof safety and passing convenience are both considered, bidirectional escape ability and multidirectional evacuation paths are provided, people are allowed to rapidly evacuate from two directions, congestion of a single exit is avoided, the door is particularly suitable for crowded places, normal evacuation can still be performed even if a fire source is located on one side of the door and the other side of the door, and escape blind areas are reduced; the fire-fighting evacuation efficiency is improved, and an infrared sensing mechanism achieves anti-pinch.

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 a UE5-based ship fire evacuation simulation method. The method comprises the following steps: S1, constructing a mobile virtual agent in a virtual ship cabin scene; s2, setting an evacuation area matrix and an evacuation area connection condition matrix of a virtual ship cabin; s3, constructing a mobile virtual agent fire evacuation model based on the evacuation area matrix and the evacuation area connection condition matrix; and S4, solving the evacuation model to obtain an evacuation path, and controlling the mobile virtual agent to perform evacuation simulation according to the evacuation path. Compared with the prior art, the method has the advantages of optimizing a fire evacuation route and the like.

The invention belongs to the technical field of fire-fighting evacuation indication, and provides a fire-fighting evacuation indication method and system based on a parallelization Dikstra algorithm, fire-fighting evacuation indication is performed by means of a building three-dimensional model, and a recommended route can be visually indicated. Meanwhile, the optimal paths from all the vertexes to other vertexes are obtained through the parallelization Dikstra algorithm, the pressure of mass data processing is reduced, the shortest distance, the shortest time and the highest safety are taken as targets through the parallelization Dikstra algorithm, and the optimal path is obtained through the parallelization Dikstra algorithm. Three pre-selected paths between the vertexes are determined, the final optimal path is determined on the basis, and on the basis of avoiding the pressure of mass data processing, the problem that it cannot be guaranteed that personnel safely arrive at an exit when only a single factor is considered is solved.

The utility model belongs to the technical field of emergency escape, and particularly relates to an intelligent guiding system for fire escape. Comprising an escape indication board, and a dangerous case sensing device and a positioning signal transmitting module are arranged in the escape indication board; the escape guiding glasses comprise a glasses frame and lenses, and a power supply, a control unit electrically connected with the power supply, a positioning signal receiving module electrically connected with the control unit and a direction sensing module are arranged in the glasses frame; the positioning signal receiving module is matched with the positioning signal transmitting module to relatively position the escape guiding glasses and the escape indicating board, the direction sensing module is used for determining the orientation of the escape guiding glasses, and the escape guiding glasses are further provided with a loudspeaker electrically connected with the control unit and used for broadcasting escape route guiding voice. According to the utility model, through relative positioning between the escape indication board and the escape guide glasses, a user is guided to avoid a dangerous environment and go to a safe area, the fire evacuation and escape capabilities of the user are improved, and autonomous and efficient escape is realized.

The utility model relates to the technical field of building decoration, in particular to an embedded fire evacuation sign fixing frame which comprises two sets of fixing frame bodies installed on the two sides of an embedded hole in a wall, each fixing frame body is formed by overlapping an outer plate, a middle plate and an inner plate, the height of the middle plate is smaller than that of the embedded hole in the wall, and the height of the inner plate is smaller than that of the embedded hole in the wall. The outer plate, the middle plate and the inner plate are provided with holes and correspond in position, the outer plate is connected with the middle plate and the inner plate through bolts installed in the holes, and the fixing frame body is connected with the embedded equipment through bolts. The embedded hole fixing device is fixed at the two ends of the embedded hole of the wall body in a clamping manner, the embedded hole, the wall body and embedded equipment cannot be damaged, and the problems of loosening and falling caused by repeated disassembly and assembly are reduced.

This invention provides a subway station fire evacuation simulation method and system, belonging to the field of rail transit technology. Based on the lattice-Boltzmann method, the lattice-Boltzmann sublattice model obtained by large eddy simulation is integrated with an obstacle flow simulation model and a smoke diffusion model to construct a lattice-Boltzmann fire model. Sensory, psychological, and physiological models are constructed based on the lattice-Boltzmann fire model, and combined with a social force model to construct an evacuation model. The lattice-Boltzmann fire model is combined with the evacuation model to simulate evacuees' real-time avoidance of fire smoke. This invention achieves a substantial integration of the fire smoke evolution and evacuation processes, simulating their interaction and better recreating actual fire scenarios, providing certain benefits for engineering practice.

The invention discloses a novel fire safety evacuation guiding method. The method comprises the following steps: 1, displaying a real plane graph of a place on a display device by using visual and auditory information, and transmitting the real plane graph to a customer; 2, dividing the place into a plurality of small evacuation areas after calculation according to the number of the emergency exits on the real plane graph, the evacuation distance and the evacuation width; 3, displaying the dynamic evacuation route in each evacuation area to the customer, replacing the personnel model with a specific symbol, and moving from each evacuation area to a safe position along the demonstrated evacuation route; and 4, displaying the dynamic evacuation route in a voice prompt mode. The invention belongs to the technical field of fire-fighting evacuation, and particularly relates to a novel fire-fighting safety evacuation guiding method, which is based on a fire-fighting theory, automatically displays a real plane graph of a place on an emergency exit of electronic equipment in an image or video form, and carries out warning prompt to assist personnel to escape nearby.

The utility model discloses an intelligent guiding device for a fire-fighting evacuation direction, which belongs to the field of building fire fighting, and can identify and determine a correct evacuation direction and lighten an evacuation pointing lamp according to the real-time monitoring of the air temperature and the smoke concentration in a fire building so as to reduce the risks of burn and poisoning caused by the error of an evacuation escape path. Real-time intelligent monitoring of the air temperature and the smoke concentration of a fire-fighting service area and real-time intelligent guiding of a fire-fighting evacuation path can be completed without a background, and real-time sensing of a building fire and real-time guiding of the evacuation path are guaranteed; data are transmitted in a wireless transmission mode, monitored real-time data are enabled through identifiers, and uniqueness of building fire monitoring prevention and control data is guaranteed.

The present application relates to the field of intelligent control technology, and provides an intelligent control method and system for fire evacuation in subway stations, the method comprising: obtaining a structural diagram of a safe evacuation passage in a subway station; obtaining a fire signal; obtaining a passable safe evacuation passage according to the structural diagram and the fire signal; issuing a guide arrow direction change instruction to the evacuation indicator light through the passable safe evacuation passage, and obtaining a guide arrow direction change result; performing image acquisition on the guide arrow direction change result based on an image acquisition device; comparing the guide arrow direction change instruction with the guide arrow image acquisition result, and obtaining a guide arrow comparison result; judging whether to generate an early warning message based on the guide arrow comparison result, and the early warning message is used to remind station managers to adopt a manual emergency plan. The use of this method can solve the technical problem that there is no complete set of guide arrow change methods for evacuation indicator lights, and thus the requirements of an immediate evacuation plan cannot be met.

The invention provides a community multi-source management information system and method based on an access control machine, and the system combines an Internet of Things fire-fighting sensing system, an access control terminal, a central control server, a property management and control background and an owner APP, and the Internet of Things senses community multi-source fire data and carries out the real-time fire early warning. The system can perceive fire conditions in real time and quickly perceive the fire conditions based on standardized fire emergency plan information support provided by a public security / fire-fighting platform, and the system gives emergency plans of corresponding levels and distributes the emergency plans to an access control machine cluster and a property management and control background. Emergency instructions are quickly responded through the access control system, emergency measures are displayed through a screen of the access control machine, real-time fire-fighting evacuation is guided for property management / owners, emergency response is quickly carried out, and the property management efficiency is improved. Once the fire behavior is sensed, the system associates and pushes the fire behavior condition and the emergency plan, compared with manual notification, the system is faster and more efficient, fire behavior emergency evacuation is prevented from being delayed by some owners due to reasons, and the safety service level of property management for the owners is improved.

The utility model relates to the technical field of tunnel engineering, and provides a shield tunnel fire-fighting evacuation structure which comprises a shield tunnel section, an open-cut tunnel section, a shield working well and a management storehouse, and the shield tunnel section comprises an upper driving layer, a lower evacuation layer and a first communication unit. The shield working well comprises a second communication unit, an upper space layer, a driving space layer and a fire-fighting evacuation layer, the upper space layer, the driving space layer and the fire-fighting evacuation layer are sequentially arranged from top to bottom, the driving space layer communicates with the upper driving layer, the fire-fighting evacuation layer communicates with the lower evacuation layer, and the second communication unit communicates with the fire-fighting evacuation layer and the upper space layer; the open-cut tunnel section comprises an upper functional layer and a lower traveling layer, the lower traveling layer is communicated with the traveling space layer, and the upper functional layer is provided with a special fire evacuation channel. The system is not interfered and hindered by vehicles on tunnel traffic lanes, fire disasters can be evacuated as soon as possible when found, and the operation efficiency, safety and comprehensive management benefits of the whole shield tunnel system are effectively improved.

The invention relates to the technical field of intelligent fire protection, and provides a building internal fire protection evacuation illumination ground minimum illumination automatic inspection system comprising a distributed light intensity sensing array composed of at least three groups of embedded sensing nodes; the illumination sensors are arranged in building evacuation aisles, places with dense people, evacuation staircases, front rooms or shared front rooms of the evacuation staircases, refuge aisles, front rooms of the refuge aisles and refuge floors, and are used for directly collecting ground horizontal illumination values E; and the central intelligent control unit is connected with the distributed light intensity sensing array through a duplex communication link, is provided with an inspection task scheduling module, a standard threshold storage module, a data comparison and diagnosis module and a trend analysis module, and is used for triggering an inspection task, receiving illumination data and executing threshold comparison and fault diagnosis. The inspection precision is improved through accurate acquisition and grading judgment, the response time is shortened by means of light attenuation pre-judgment and emergency linkage, the traditional inspection defects are overcome, and the reliability of evacuation illumination is guaranteed.

The utility model relates to high -rise building escape passage technical field discloses a kind of high -rise building escape passage smoke gas backflow guiding device, including first air pipe, the top and bottom of the first air pipe are respectively connected with connecting air pipe and passage air pipe, and the top of the connecting air pipe is connected with second air pipe, by setting switchable air guiding passage and matched fan, ventilation and air change between building interior and escape passage are realized under normal circumstances, airflow path leading to evacuation passage can be automatically closed under emergency such as fire, prevent smoke gas backflow, and smoke gas is quickly guided to building exterior and discharged, effectively improve high -rise building fire evacuation safety;Meanwhile, the device is equipped with synchronous driving's scraper cleaning mechanism, can automatically clean filter plate, avoid dust accumulation to influence smoke exhaust efficiency, ensure long-term stable operation of system.

A comprehensive firefighting experience teaching system adopts a three-story experience teaching building, which is respectively equipped with a first aid experience area, a sprinkler experience area, a fire alarm experience area, an evacuation corridor experience area, a fire extinguisher experience area, a sprinkler experience area, a firefighting VR experience area, a fire evacuation experience area, and a high-altitude escape experience area. The present invention fully displays various firefighting systems in the building, allowing participants to intuitively understand the equipment and operating principles of the firefighting system, and personally experience the firefighting process and practical effects, learn firefighting evacuation and high-altitude escape skills, making the firefighting learning experience more intuitive, more profound, and more scientific. Moreover, the system building of the present invention adopts an assembled light steel structure, which has the advantages of convenient transportation, flexible functional combination, and quick construction.

The invention relates to the technical field of fire evacuation, in particular to a fire evacuation method based on a big language model and electronic equipment. The evacuation method comprises the following steps: acquiring fire information of a target area, and constructing a real-time combustion scene in a three-dimensional scene model; determining the comburent category and combustion intensity of the combustion area according to the real-time combustion scene; obtaining aerodynamic parameter data of the target area, determining air flow data in the three-dimensional scene model, and constructing a real-time smoke scene in the three-dimensional scene model according to the air flow data, the comburent category and the combustion intensity; determining all selectable evacuation paths according to the passable area; acquiring traffic condition data of each position in the optional evacuation path, and converting the traffic condition data into readable statements; and the readable statements are imported into the large language model, and the optimal evacuation path is selected from all the selectable evacuation paths through the large language model. Direct guidance can be provided for fire evacuation, and evacuation work can be efficiently, safely and orderly carried out.