37 results about "Fire evacuation" patented technology

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 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 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 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 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.

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.

The application discloses an underground parking lot intelligent fire-fighting evacuation method based on group theory, belongs to the technical field of cross of fire engineering, intelligent traffic and applied mathematics, and aims at the pain point of fire-fighting evacuation of an ultra-large-scale underground parking lot, realizes global optimization through three core mechanisms, including the following steps of S1, constructing a topological graph model and a permutation group congestion governance mechanism, generating a minimum cost permutation sequence to dynamically adjust vehicle distribution; S2, realizing partition autonomy and cross-zone cooperation based on normal subgroup theory, and guaranteeing load balancing through direct product decomposition; and S3, establishing a group homomorphism from a risk field to a path set, excluding high-risk paths through a homomorphism kernel, and dynamically generating a safe evacuation network. The application eliminates the conflict of opposite traffic flows through the commutative law of Abelian groups, realizes load balancing through a prime power constraint subgroup dynamic adjustment mechanism, and provides a reliable scheme for fire-fighting evacuation.

The invention relates to a dormitory building fire evacuation path optimization coupling simulation method, and belongs to the field of safety science and engineering. Constructing a fire cause model by fusing double theories to lock risk nodes; collecting data of personnel in a fire situation and performing simulation parameterization processing; building a BIM (Building Information Modeling) by utilizing Revit; according to the method, a fire disaster simulation result is coupled with evacuation simulation software, an evacuation simulation model is established, parameters are combined to simulate a multi-floor fire disaster scene through Pyrosim to identify three core threats of temperature, toxic gas concentration and visibility, Pyrosim and Pathfinder software are coupled to establish the evacuation simulation model, the association relationship among personnel evacuation timeliness, escape path smoothness and a fire source position is analyzed, and the fire disaster evacuation timeliness is analyzed. And an evacuation path optimization scheme is provided based on a simulation result. According to the invention, the evacuation key risk node can be accurately locked, the accuracy of evacuation simulation is improved, the coupling association between the fire environment and personnel evacuation can be established, and the safety of the evacuation path is improved.

The invention discloses an intelligent identification and automatic opening system for a rail transit composite fireproof door, and relates to the technical field of fireproof doors. The personnel recognition module further monitors the walking posture and the staying time of personnel near the fireproof door body through a camera, and the obstacle recognition module judges whether an obstacle appears on the opening path of the fireproof door or not through the image recognition technology and the sensor technology. According to the invention, by identifying the fireproof zone, when a fire occurs, accurate position information can be rapidly provided for the control unit, so that the control unit determines whether the fireproof door should be opened to guide people to evacuate to the safe fireproof zone or to be closed to prevent the fire from spreading to other zones according to a preset fire evacuation strategy; and a rail transit operation management department can conveniently and quickly position the state of the fireproof door in a specific fireproof zone in daily maintenance and monitoring.

The present invention improves the fire evacuation method in the subway station based on surveillance videos. First, computer vision technology is used to identify fires, determine their locations and development scales; at the same time, the locations and numbers of people to be evacuated are identified to provide a data basis for evacuation route planning. Second, factors such as the fire location, crowd distribution, passing capacities of each evacuation exit, evacuation distances, and path curvatures are comprehensively considered, and multiple algorithms are integrated to quickly optimize and solve the evacuation routes, so as to maximize the overall evacuation efficiency of the station. Third, this technology can be deployed based on the existing monitoring system in the subway station, and the planned escape routes are used to guide the evacuation of station members through safety indication signs, making full use of the existing hardware facilities and keeping the application cost controllable.

The invention relates to a high-rise building fire emergency evacuation indicating system based on an unmanned aerial vehicle. The system comprises a fire behavior data acquisition module, a trafficability analysis module, a candidate path generation module, a fire behavior development prediction module, an evacuation path optimization module, an evacuation scheme generation module and an unmanned aerial vehicle instruction generation module. The fire data acquisition module responds to fire alarm and acquires real-time fire data; the trafficability analysis module analyzes the trafficability of the evacuation channel based on the real-time data and a preset building layout; the candidate path generation module generates candidate paths through an algorithm; the fire behavior development prediction module calls the model to predict the fire behavior trend; the evacuation path optimization module optimizes the path based on the prediction result; the evacuation scheme generation module formulates a scheme in combination with rules; the unmanned aerial vehicle instruction generation module generates a guide instruction to instruct evacuation. By adopting the system, the dynamic intelligent guidance of fire evacuation of the high-rise building can be realized, and the path planning accuracy and the personnel safety efficiency are improved.

The invention relates to a refuge equipment planning method and system based on traditional village feature analysis, and relates to the technical field of refuge equipment planning, and the method comprises the steps: obtaining the wood type, humidity, wood building topology and distribution information of a target village, and obtaining the ignition point distribution information through the ignition point mode analysis; a preset future time zone weather forecast is loaded, and temperature maximum value distribution information is obtained through analysis of a temperature extreme value prediction model bound with villages in combination with environment temperature and humidity; extracting a quasi fire area whose temperature maximum value is greater than or equal to the ignition point; when the number of the quasi-fire areas is larger than 0, refuge equipment distribution and material storage states are loaded; and configuring a refuge scheme, producing a village fire refuge strategy, and executing a preset future time zone refuge plan. The problems that in traditional village fire protection, wood building characteristics and extreme weather influence under climate change are not combined, accurate fire pre-judgment and adaptive refuge planning are lacked, personnel evacuation and escape are difficult in the fire, and the protection effect is poor are solved.

The utility model belongs to the technical field of fire-fighting evacuation signs, and discloses a fire-fighting evacuation guide sign with a striking alarm mechanism, which comprises a base, a support sleeve is fixed at the upper end of the base, a support rod is slidably connected to the upper end of the support sleeve, a guide board is fixed at the upper end of the support rod, and a mounting groove is fixed at the lower end of the front side of the guide board. A signboard is arranged at the upper end of the mounting groove, an indication board is arranged on the right side of the signboard, a clamping plate is arranged at the upper end of the guiding board and rotationally connected with the guiding board, and a limiting groove is formed in the lower end of the base. According to the fire-fighting evacuation guide sign with the striking alarm mechanism, by arranging the rapid positioning structure, the signboard and the indication board can be rapidly positioned, so that rapid disassembly and assembly are completed, meanwhile, the illumination lamp is arranged in a matched mode to illuminate the indication board, and when the sign is used in a dark environment, light reflected by the indication board is conspicuous and striking enough; and the escape personnel can find the escape path more quickly.

The application discloses a kind of personnel intensive place fire evacuation simulation optimization method and system, it is related to fire safety evacuation simulation and emergency path optimization technical field, division target evacuation area forms path unit, generates path unit state, exit bearing state and basic personnel state, constructs basic evacuation state array and carries out path smoke preliminary screening and exit bearing preliminary screening;When not passing in preliminary screening, based on visibility, temperature and carbon monoxide concentration critical time generates path unit failure time, filters out candidate path that personnel has failed when arriving;Again according to exit effective net width, current queue and predicted number of arrivals generates exit bearing duration, determines target evacuation path in combination with walking duration and congestion delay;Finally, single round feedback correction is carried out, and the output optimization evacuation scheme or priority rescue unit result can simultaneously constrain smoke time limit and exit bearing in path generation stage, improve the executability of evacuation scheme.

The application relates to a data processing system based on a multimodal fire prevention and control emergency evacuation large model, which comprises multiple cameras, multiple direction indicators and a multimodal fire prevention and control emergency evacuation large model; wherein each branch intersection in a target site is provided with a direction indicator; each direction indicator is bound with a direction determination task; when a fire evacuation alarm of the target site is triggered, each direction determination task is executed immediately and is repeatedly executed at a preset time interval; the global optimal evacuation path determination task is decomposed into multiple relatively lightweight and distributed local direction determination tasks, so that the response delay of single decision is reduced; and the direction determination task is repeatedly executed at a preset time interval, so that the evacuation path formed by the target directions displayed by the direction indicators can timely reflect the optimal evacuation path conforming to the current actual situation of the target site, and the overall evacuation efficiency can be improved.

The application discloses a design method and device of a communication passage of a double-line tunnel, equipment and a storage medium, relates to the technical field of tunnel engineering, and discloses a design method of a communication passage of a double-line tunnel, which comprises the following steps: matching adjacent point positions based on basic information of a plurality of line target positions corresponding to a first tunnel line and a second tunnel line respectively, determining a plurality of initial communication passages and corresponding center mileage information of a pump house based on a matching result; segmenting the first tunnel line by using the information and demarcation mileage information of a tunnel air shaft to obtain a plurality of evacuation segments; determining the number of target passages of each evacuation segment according to the segment spacing of the plurality of evacuation segments and a fire evacuation spacing, determining a plurality of target communication passages and corresponding center mileage information in combination with the center mileage information of each initial communication passage and pump house, and obtaining a communication passage design scheme. In the foregoing manner, batch design and automation of the communication passage layout scheme are realized, the design efficiency is greatly improved, and the error rate is reduced.

The invention relates to the technical field of fire safety, in particular to a fire evacuation guiding method and system. The method comprises the following steps: obtaining building layout information; performing evacuation path network modeling according to the building layout information to obtain evacuation channel data; performing path congestion assessment according to the evacuation channel data to obtain path congestion data; acquiring fire-fighting sensing data; sensing a fire position in real time based on the fire-fighting sensing data to obtain fire position data; performing fire spreading direction prediction based on the fire position data to obtain fire spreading direction data; identifying a fire hazard area according to the fire spreading direction; building structure heat conduction simulation is carried out according to the fire hazard area to obtain building structure heat conduction data; and identifying an unstable structure based on the heat conduction data of the building structure to obtain unstable structure data. The fire-fighting evacuation safety and evacuation efficiency are improved based on the fire-fighting safety technology.

The invention relates to a fire-fighting evacuation route generation method and device, a fire-fighting guidance system and a storage medium, and the method comprises the steps: obtaining an evacuation exit position corresponding to each monitoring region of a target building; when it is monitored that the fire alarm event occurs in the target building, determining a fire spreading prediction area according to fire influence information corresponding to the fire alarm event; and generating at least one fire-fighting evacuation route for each to-be-evacuated area in all the monitoring areas according to the target monitoring area corresponding to the fire-fighting alarm event, the evacuation exit position and the fire spreading prediction area. According to the method, the fire spreading factor can be considered during evacuation route planning, so that the safety and the evacuation success rate of fire-fighting evacuation route planning under the influence of fire spreading are improved, and the accuracy of fire-fighting evacuation route planning is improved.

The application discloses a flexible wearable fire evacuation path planning and guiding device and method based on UWB sensing, and relates to the technical field of fire safety evacuation path planning.The system comprises a flexible wearable main body, a positioning communication module, an environment sensing module, a central control unit, a flexible driving module, a multi-modal interaction module and a building fire control system; wherein the positioning communication module fuses UWB, IMU, BIM constraints and SLAM positioning to realize failure completion, the central control unit performs multi-source fusion risk coupling positioning, regional risk assessment and old age adaptive dynamic obstacle avoidance path planning, the flexible driving module and the multi-modal interaction module cooperatively output power assistance, tactile, visual and auditory guidance, and link lighting, smoke exhaust, fire doors and other facilities, and are suitable for safe, efficient and continuous evacuation of people with difficulty in movement in a complex building fire environment, and improve path decision accuracy and linkage control reliability.

The invention discloses an urban office building fire personnel turn-back behavior evacuation efficiency analysis system and method, and belongs to the field of building emergency safety management, and the method specifically comprises the steps: collecting video and environment parameter data in a fire evacuation process in real time through a video monitoring unit and a sensor unit, carrying out the cleaning and fusion through a preprocessing unit, and carrying out the collection of the collected data; an evacuation efficiency evaluation module combines the characteristics of the turn-back behaviors, environmental parameters and evacuation time to evaluate the evacuation efficiency, and an intelligent optimization module generates an optimized evacuation strategy according to an evaluation result and provides real-time decision support and interactive training. And the innovative application module realizes data sharing, early warning linkage and visual display, so that the evacuation efficiency is improved, and the fire risk is reduced.

A wearable device for fire evacuation in a building includes a wearing part provided for a user to wear; a communication unit configured to be able to communicate with a disaster management device; an output unit provided in the wearing part to be able to output evacuation guidance information; and a control unit configured to determine an evacuation route corresponding to a position of the user in the building and an expected moving direction of the user on the basis of communication with the disaster management device through the communication unit, and when it is determined that the expected moving direction of the user does not follows the evacuation route, control the output unit to output the evacuation guidance information indicating a corrected moving direction.

The application belongs to the technical field of evacuation passageway, and discloses a high-rise building fire evacuation passageway facilitating escape, which comprises a passageway main body, an automatic response fire extinguisher arranged on the inner top wall of the passageway main body, an emergency lighting lamp arranged on the inner wall of the passageway main body, and a smoke exhaust mechanism arranged on the inner wall of the passageway main body, wherein the inner wall of the passageway main body is provided with a containing box, the side wall of the containing box is provided with a protective cover for closing the containing box, the inner wall of the containing box is provided with a plurality of supporting rods for placing towels, and the containing box is provided with a water spraying assembly for wetting the towels. The application has the effect of improving the use experience of the escape personnel.

A method and apparatus are provided for performing a fire evacuation simulation based on a spatial network of semantic digital twin virtual models that consider internal facility layout. Spatial semantic information about a building is generated on the basis of building information model (BIM) information about the building, and three-dimensional information about the building is generated on the basis of the spatial semantic information about the building, thereby implementing a virtual space. The three-dimensional virtual space of the building includes at least one layer including M unit spaces interconnected by N doors, and the space semantic information includes M unit space polygon information for shaping each unit space and external information. The space represents door object information of doors connected to the M unit spaces, a space connection matrix representing connectivity between the M unit spaces, and a door space table representing matching relationships between the M unit spaces, and determines the shortest. And setting an evacuation path for each unit space in the M unit spaces according to the spatial semantic information.

According to an embodiment, a method of operating an elevator system during a fire evacuation including: receiving a fire detection from a fire alarm system indicating a fire; detecting a fire intensity using a fire quantity measurement system; and determining a discharge landing for the elevator system in response to at least the fire intensity.