154 results about "Fire accident" patented technology

The invention provides a ship unmanned aerial vehicle cabin multistage fire alarm system and method based on edge computing, and the system comprises an intelligent shipborne system and a shore-based cloud system, the intelligent shipborne system is disposed in a ship cabin, and has the functions of data collection, data abnormity perception, fire monitoring and multistage early warning; the method is composed of three levels of data acquisition, edge processing and fire decision making. The shore-based cloud system is a cloud end of a shore-based system arranged on the land, has the functions of transmitting and receiving distress signals, storing remote data and tracing large fire accidents, and is composed of a communication unit, a storage unit and an alarm unit. The intelligent ship-borne system is connected with the shore-based cloud system through the satellite communication technology, infrared thermal imaging and multi-source sensing fusion is achieved, the device has the edge processing capacity, the multi-level fire judgment logic and the shore-based remote traceability function, and the device is suitable for the closed, complex and unattended ship engine room environment.

The invention relates to the technical field of fire safety management, and discloses a fire safety management supervision platform system. The system comprises a building information acquisition module for acquiring building structure data and environment monitoring data of a target building in real time; the risk area division module is used for dividing a plurality of independent fire risk areas according to the building structure data and distributing area identifiers; the historical data indexing module is used for indexing a historical fire accident data set and a fire-fighting facility maintenance record set of each region according to the region identifier; the dynamic risk analysis module fuses the environment monitoring data and the historical fire accident data set to generate a real-time fire risk coefficient sequence; the fire-fighting resource scheduling module is used for generating a fire-fighting resource allocation scheme based on the real-time fire risk coefficient sequence and the facility maintenance record set; and the emergency response decision module generates a multi-stage fire emergency response strategy according to the resource allocation scheme. The system improves the timeliness and pertinence of fire safety management.

The present disclosure provides a fire response control method and system for a lithium battery energy storage box, relating to the technical field of lithium batteries, which comprises: collecting battery compartment layout information of the lithium battery energy storage box; reading data of the lithium battery energy storage box to obtain real-time control data; laying out temperature collection devices through the battery compartment layout information; obtaining temperature data collection results; collecting historical detection data with time sequence identifiers; constructing a lithium battery feature data set of the lithium battery energy storage box; constructing an abnormality monitoring model; outputting abnormality warning level information; generating multi-level fire response control data; and managing the lithium battery energy storage box. The technical problem of inaccurate and timely fire warning of the lithium battery energy storage box and inability to avoid fire accidents in time due to the single and inaccurate setting of the warning threshold in the prior art is solved.

The invention provides a building construction safety intelligent early warning and prevention and control system, and belongs to the technical field of building construction safety intelligent management. According to the invention, through GPS, sensor network and environmental parameter monitoring, dynamic perception of personnel behaviors, equipment states and construction environments is realized, high-place falling, mechanical faults and fire accidents are effectively prevented, a risk model constructed based on big data and machine learning can accurately identify accident rules, such as seasonal hidden dangers and equipment fatigue trends, and the safety of the system is improved. Traditional post-event processing is converted into pre-event prevention, personnel distribution, equipment states and environment data are displayed through a large screen and a mobile terminal, a manager can quickly allocate resources and balance safety and progress contradictions, a safety performance evaluation module generates a report through indexes of an accident rate and a hidden danger rectification rate, the safety management effect is quantified, and the management efficiency is improved. Weak links are helped to be positioned, risk model parameters and early warning rules are optimized regularly, and a PDCA cycle of'monitoring-early warning-prevention and control-evaluation 'is formed.

The invention provides a dangerous chemical fire accident tracing method based on RFID, and belongs to the technical field of fire tracing, and the method comprises the steps: configuring an RFID tag for each dangerous chemical container; based on a pre-deployed read-write network, information of each RFID tag is read and transmitted to a central data platform, and a dynamic information database of the dangerous chemicals is established; integrating the residual label information with a dynamic information database, tracing a position sequence and a state sequence of the dangerous chemicals before the fire occurs, and simulating a fire spreading path and an expansion trend of each path point on the spreading path according to the current fire situation and the residual label information of the dangerous chemicals; and comprehensively judging the cause of the fire accident and generating a traceability accident report. And the safety of dangerous chemical management is improved.

The invention relates to a regional fire risk dynamic assessment and early warning method for an urban tunnel. The method comprises the following steps of: gridding the tunnel by taking tunnel infrastructure as a reference object; obtaining a tunnel fire accident database, and constructing a tunnel fire risk assessment index system; considering the influence of the index on the fire risk and the influence of the mobile index on spatial distribution, and determining an index weight; determining an index membership threshold, calculating an index membership degree, and obtaining a real-time initial fire risk assessment result of each region; early warning parameters are reasonably selected, the initial fire risk assessment result is corrected in combination with the single index risk, and a final regional fire risk assessment result is obtained; setting an early warning threshold value of each index under different evaluation results based on the final evaluation result of the regional fire risk occurrence probability; and comparing the index early warning value according to the index data measured by the risk sensing equipment, and outputting a single-index fire risk early warning result to realize single-index fire risk early warning. The method is high in pertinence, high in accuracy and high in sensitivity.

The utility model discloses a delayed gas cut-off protection system for a residential kitchen gas stove, which is characterized in that a gas pipeline opening and closing stop valve and a gas pipeline electric valve are sequentially mounted on a gas pipeline in series, and an inductive switch controller and a time relay are respectively mounted on one side of an inductive switch; the load output end of the inductive switch controller is connected to the input end of the time relay and the input end of the smoke exhaust ventilator through lines. The output end of the time relay is connected with the input end of the gas pipeline electric valve through a line I; the signal acquisition end of the inductive switch controller is also connected with an inductive switch through a circuit; the inductive switch is installed at the position close to the gas pipeline opening and closing stop valve. During cooking, the gas pipeline stop valve, the interlocking inductive switch, the interlocking starting exhaust fan and the interlocking starting time relay are manually opened. If the fire is forgotten to be turned off and the set time is exceeded, the electric stop valve is automatically closed to prevent the pot from being burnt out, so that fire accidents are prevented.

This application relates to the field of vehicle technology and discloses a risk avoidance control method, device, electronic equipment, vehicle, and storage medium. The risk avoidance control method includes: when the vehicle is in an unattended parking state, acquiring the vehicle's system performance parameters and the fire characteristic parameters of the vehicle's environment, where the unattended parking state refers to the vehicle being parked and stationary, without any driving or passenger movement; if the fire characteristic parameters indicate a fire risk in the vehicle's environment, then based on the system performance parameters, assessing the degree of performance degradation of the vehicle under the fire risk to determine the vehicle's remaining mobility; generating a target risk avoidance path based on the vehicle's remaining mobility and the fire characteristic parameters; and controlling the vehicle to avoid the fire according to the target risk avoidance path. This enables timely risk avoidance of the vehicle from fire risks when no one is present, reducing property damage caused by vehicle fire accidents and ensuring public safety.

The application discloses a kind of chemical warehouse fire accident wastewater unpowered control and collection system, mainly including fire accident wastewater collection well, wastewater valve control well, rainwater valve control well, fire wastewater ditch, outdoor wastewater pipeline, wastewater diversion well, accident pool.It is characterized by: system utilizes hydraulic power from fire accident wastewater collection well, wastewater valve control well, rainwater valve control well Joint automatic control different function valve in wastewater diversion well opening and closing;Normal working condition, wastewater diversion well inside accident pool one side valve is closed, rainwater pipe one side valve is opened, fire condition, wastewater diversion well inside accident pool one side valve is opened, rainwater pipe one side valve is closed.The application solves the current chemical warehouse fire accident wastewater collection system needs manual switching valve in diversion well, causes heavy amount of repeated labor, cannot guarantee timely switching and other safety problems.Simultaneously system composition and working principle are simple, easy to construction installation, easy to large-scale use and promotion.

The invention provides a power transmission line forest fire intelligent monitoring method and system based on multispectral imaging, and relates to the technical field of data processing, and the method comprises the steps: monitoring a power transmission line region in real time, and obtaining a multispectral imaging sequence which comprises a visible light imaging sequence, a thermal infrared imaging sequence and a near infrared imaging sequence; performing multi-spectral feature coupling registration reconstruction, and establishing a line spectral feature coupling model; performing multi-point mountain fire accident characteristic prediction to obtain a mountain fire accident characteristic first graph model; performing multi-time sequence correlation misjudgment correction to obtain a second graph model of the forest fire accident characteristics; fire evolution constraint correction is carried out, and a third map model of forest fire accident characteristics is generated; and dynamic early-warning processing of the forest fire is executed. According to the invention, the technical problems of low data processing precision and efficiency and forest fire misjudgment and early warning delay caused by insufficient power transmission line forest fire monitoring data processing capability and relatively weak misjudgment correction and data fusion capability in the prior art are solved.

The application discloses a device for detecting and alarming leakage of a burner on a flame cleaning machine, which is arranged on a joint surface of a gas distributor and comprises a gas guiding structure, a gas guiding pipeline and a sensor; the gas guiding structure is arranged on the joint surface of the gas distributor; one end of the gas guiding pipeline is connected with the gas guiding structure, and the other end is connected with the sensor; signals of the sensor are transmitted to a PC terminal and displayed on a man-machine interface of the PC terminal; the number of the device is matched with the number of the burner device; and the application further discloses a detection method for detecting and alarming leakage of the burner on the flame cleaning machine. The application can determine one or several burner devices with leakage, detect whether the leaked gas is oxygen or fuel gas, and alarm through the man-machine interface, so that equipment burning or fire accidents can be avoided.

The utility model relates to the technical field of machinery, and discloses a scraped car drilling pumping drainage device which comprises a drill bit and a drilling machine frame, an auxiliary mechanism is arranged on the drilling machine frame, a filtering mechanism is arranged on the auxiliary mechanism, the auxiliary mechanism comprises a spraying head, the spraying head is fixedly connected to the outer wall of the top of the drilling machine frame, and a water pump is arranged on the spraying head. A water pump box is fixedly connected to the outer wall of the rear side of the drilling machine frame, a sleeve frame is fixedly connected to the outer wall of the left side of the drilling machine frame, a collecting box is slidably connected to the inner wall of the inner ring of the sleeve frame, a flaring cover is clamped to the outer wall of the top of the collecting box, and filtering holes are formed in the inner wall of the bottom of the collecting box. A liquid outlet chamber is formed in the inner wall of the bottom of the collecting box, and a discharging opening is formed in the inner wall of the bottom of the liquid outlet chamber. According to the utility model, by arranging the structures such as the flaring cover and the filter holes, the problems that heat is generated in the drilling process due to friction, and fire accidents are likely to happen due to the fact that a drilling object is an oil tank are solved.

The invention discloses a battery health state monitoring method based on Bluetooth Beacon long data packet broadcast, and relates to the technical field of electric bicycle battery fire safety monitoring. According to the method, all batteries are forced to adopt the same Bluetooth Beacon long data packet format to broadcast data through a unified reporting standard protocol, brand barriers are thoroughly broken, and seamless access and centralized management of global battery data are realized; according to the invention, through dual-channel real-time data acquisition of the Bluetooth gateway and the mobile phone App and in combination with a cloud millisecond risk analysis model, the whole process from data receiving, decryption and analysis to instruction issuing can be completed within 3 seconds. According to the invention, through data communication among the electric bicycle battery health state data reporting standard protocol, the battery BMS module with the Bluetooth function, the Bluetooth gateway, the mobile phone App and the cloud server, monitoring and early warning of the battery health state can be realized, and fire accidents caused by the electric bicycle battery are restrained from the source.

The invention belongs to the technical field of fire accident investigation, and particularly relates to a socket fire hole site auxiliary judgment method, which comprises the following steps: S1, establishing a standard partition template, S2, acquiring field information, S3, scoring appearance ablation, S4, calculating a panel fire suspicion index Io < j >, S5, calculating a comprehensive fire suspicion index Hj, S6, judging a fire hole site, and S7, outputting an auxiliary conclusion. According to the socket firing hole site auxiliary judgment method provided by the invention, by establishing a panel standard partition template and a unified scoring rule, traditional experience-dependent naked eye observation is converted into a standardized partition scoring and calculation process, subjective judgment deviations of different investigators are greatly reduced, the consistency and repeatability of judgment results are improved, and the judgment efficiency is improved. According to the method, the appearance trace of the socket panel and the core trace of the metal contact are comprehensively utilized, a double scoring system is constructed, the thermal action distribution characteristics reflected by the panel trace are reserved, the metal contact trace close to the fault source is fully utilized, and the judgment basis is more comprehensive and more accurate.

The application provides a closed space explosion accident fire extinguishing and life guarantee comprehensive system and method, the system comprises: a fire monitoring and alarm subsystem, a fire extinguishing and life guarantee subsystem, a data recording and analysis subsystem and a remote monitoring and control subsystem; the method comprises: monitoring whether a fire occurs in the closed space and the fire occurrence condition, if the fire is detected, an alarm is sent and the fire location information is sent to the fire extinguishing and life guarantee subsystem; a program is selected according to the fire nature and degree to extinguish the fire, the oxygen concentration in the closed space is monitored, and the life guarantee equipment is provided; the data of the fire accident are recorded and analyzed, the performance of the system and the emergency response strategy are improved through the data analysis; the remote monitoring and control of the system are realized through the network connection, the running state of the system is monitored through the terminal equipment, and the remote operation and control are realized. The application can improve the emergency response capability and the personnel safety guarantee level of the closed space explosion accident.

The utility model relates to a tunnel fire accident rescue teaching demonstration device comprising a pedestal, the top of the pedestal is provided with a mountain model and a tunnel model, the tunnel model is arranged in the mountain model, and the tunnel model comprises a tunnel pipeline, a risk avoiding system, an illumination system and a smoke exhaust system. The beneficial effects of the utility model are that the smog system and the heating system simulate smog and high temperature generated by a fire accident of a vehicle, and the controller starts the risk avoiding system, the lighting system, the smoke exhaust system and the water-based fire extinguisher for rescue after the fire accident; the rescue effectiveness is judged according to numerical values collected by the smoke detector and the temperature detector, the optimal evacuation route is obtained, and the working states of the smoke exhaust system and the water-based fire extinguisher are changed through multiple times of demonstration of the device. Students are enabled to master the working states and the optimal evacuation route of the smoke exhaust system and the water-based fire extinguisher which can effectively cool and evacuate smoke.

The invention discloses a tunnel escape photoelectric induction system and method based on event driving, and belongs to the technical field of tunnel security, the system is used for realizing the method, and the system comprises a sensing module, a control module and an execution module; the sensing module comprises a vehicle type identification module, and the vehicle type identification module is configured to identify the vehicle type of a fire accident vehicle; the control module is configured to evaluate the risk upgrading grade of the fire accident vehicle and the influence range of the vehicle in the tunnel after the risk grade is upgraded; when the risk upgrading grade reaches a set risk grade, the emergency evacuation planning path is configured as follows: for a tunnel sub-section in the influence range in the tunnel, the emergency evacuation planning path abandons a tunnel escape node which is located in the influence range and is close to one side of the fire accident vehicle; according to the scheme, the risk upgrading possibility of the fire event is pre-judged, so that the life safety threat of the potential danger to the to-be-evacuated personnel is reduced.

The invention relates to a dangerous chemical accident consequence prediction method and system. The prediction method comprises the following steps: constructing time sequence characteristic information of dangerous chemicals; optimizing different weight updating modes used in the training process of the long and short term memory network model through a regularization algorithm, and obtaining a fusion model trained by adopting different weight updating modes; and according to the prediction performance of each fusion model on the accident consequence of the dangerous chemicals, inputting the time sequence characteristic information into the fusion model meeting a preset condition, and generating the accident prediction consequence of the dangerous chemicals. According to the method, the consequences of accidents such as leakage, deflagration and fire disasters of the dangerous chemical storage tank can be quickly predicted more efficiently and accurately, and reliable technical support is provided for emergency site handling personnel.

The application discloses a temperature monitoring system and a temperature monitoring method, and relates to the technical field of vehicles, in particular to a temperature monitoring system and a temperature monitoring method for a vehicle. The temperature monitoring system comprises a temperature sensing assembly and a central module, and is used for detecting real-time temperatures of multiple positions of the vehicle. The central module is connected with the temperature sensing assembly. When at least one position temperature signal detected by the temperature sensing assembly is abnormal, the central module triggers a data uploading function to upload all temperature signals of the temperature sensing assembly to a background big data center. According to the temperature monitoring system, when at least one temperature signal is abnormal, the central module can upload all temperature signals of the temperature sensing assembly to the background big data center. Therefore, relevant technical personnel can preliminarily analyze the data downloaded from the background before arriving at the accident site, and can determine the fire starting position according to the data analysis in the later period, which has reference significance for the investigation of the cause of the fire accident. In addition, the temperature signals of the temperature sensing assembly can be prevented from being damaged after the fire accident, and the reliability of data analysis is improved.

The invention discloses an intelligent remote gas monitoring and prompting system, which relates to the technical field of monitoring and prompting and comprises a real-time data collection unit, a real-time data analysis unit, an instruction receiving unit and an auxiliary function generation unit. According to the invention, information such as indoor gas pressure and live-line condition can be sent to a user in time, and when a person leaves the gas stove to do other behaviors, an early warning prompt is sent out in time, so that the frequency of fire accidents is reduced; meanwhile, the conditions that the natural gas concentration is larger than a threshold value, a gas pipeline electrified signal is received and the real-time pressure is not in a preset safety pressure range can be informed to a user through visual display and prompt sound, remote control can be achieved, and in other words, the user can remotely control opening or closing of the emergency cut-off valve in a gas using place; the situation that the emergency cut-off valve can be closed remotely by contacting relatives when a gas using place is in a gas using state, is unattended and cannot enter the gas using place is prevented.

The utility model relates to a waterproof flame-retardant mining cable sheath and a cable, which belong to the technical field of mining cables, and comprise three cable conductors, and the outer sides of the three cable conductors are provided with a cable sheath body. The beneficial effects of the utility model lie in that in the working process, the cable conductors are protected by the insulating layers, so that safe transmission of current can be ensured, the inner sheath provides basic insulation and flexibility, and the modified polyurethane material of the middle layer effectively prevents moisture intrusion and fire accidents through excellent waterproof and flame-retardant properties, so that the cable is suitable for popularization and application. The fluoroplastic material of the outer protective layer provides extra weather resistance and chemical corrosion resistance, long-term stable operation of the cable in a severe environment is ensured, the waterproof performance of the cable sheath body is improved through the effect of the nano silicon dioxide coating, moisture invasion is effectively prevented, and the service life of a cable conductor is prolonged.

The application discloses a fire hydrant arrangement method satisfying SOLAS safety return port requirements, which is applied to a passenger ship, the passenger ship is provided with a plurality of main vertical areas, the plurality of main vertical areas are isolated from each other, and the fire hydrant arrangement method comprises the following steps: S1, judging whether protection can be performed by connecting fire hydrants of adjacent main vertical areas not affected by an accident; S2, if yes, the fire hydrants of the adjacent main vertical areas not affected by the accident are utilized; and if no, a special fire hydrant is arranged in the main vertical area affected by the accident. Finally, one of the two schemes is selected according to specific conditions, so that the defect that the fire hydrant of the main vertical area affected by the fire accident of the passenger ship in the prior art cannot satisfy normal use requirements and lacks fire fighting capability is overcome.

Embodiments of the present application provide a fire risk response method, device, equipment, storage medium and program product, and particularly relate to the technical field of data processing. The method comprises: obtaining current monitoring data obtained by monitoring a storage tank and an environment around the storage tank; inputting the current monitoring data into a first model trained in advance to predict whether a fire event will occur in the future according to the current monitoring data, and obtain a first risk assessment result; inputting the current monitoring data into a second model trained in advance to predict the occurrence time of the fire event according to the current monitoring data, and obtain a second risk assessment result; and adjusting the working state of a risk response platform based on the first risk assessment result and the second risk assessment result, wherein the working state at least includes a first working state of starting a fire extinguishing device and a second working state of turning off the fire extinguishing device. The method has the effect of discovering and eliminating fire hazards in time and reducing the occurrence rate of fire accidents.

The present application relates to the technical field of fire accident monitoring and early warning and fire rescue, in particular to a simulation deduction and auxiliary decision system for multi-point concurrent leakage accidents of hydrogen stations, which comprises an accident scene dynamic risk mapping module, which is used for receiving and gridding a rescue area, collecting real-time monitored hydrogen concentration, heat radiation flux and explosion overpressure values for each grid. In the present application, by receiving and gridding the rescue area, collecting real-time monitored hydrogen concentration, heat radiation flux and explosion overpressure values, and combining the path interruption probability caused by hydrogen storage and hydrogenation structure collapse, a unified grid risk value is obtained, and a time-varying three-dimensional risk field data covering the entire accident scene is established, which converts discrete and multidimensional on-site monitoring data into an intuitive global danger situation picture, enabling fire rescue commanders to master the evolution law of risk in space and time.

The utility model discloses a non-motor vehicle charging device matched with fire extinguishing equipment, which comprises a pile frame main body, a plurality of groups of charging interfaces are symmetrically arranged on the pile frame main body, an electrical module and a fire-fighting assembly are arranged in the middle of the pile frame main body, and the electrical module is electrically connected with the charging interfaces and the fire-fighting assembly. The pile frame main body is supported by a steel structure and is safe, stable, fireproof and flame-retardant, a plurality of groups of waterproof charging interfaces are preset on the pile frame main body, the appearance is attractive and practical, and the middle part of the pile frame main body is provided with the electrical module for monitoring and the box-type fire extinguishing equipment storage box made of a stainless steel material; the phenomenon that fire-fighting equipment is accelerated to age when being placed in the open air can be effectively prevented, meanwhile, the fire-fighting equipment can be conveniently taken, and fire accidents caused by non-motor vehicle outdoor charging are effectively reduced.

The application discloses a hazardous chemical goods container yard wastewater collecting system, which comprises a cofferdam wall, a plurality of container yard areas are arranged in the cofferdam wall at equal intervals, a main drainage ditch is arranged in the cofferdam wall, a first branch drainage ditch is arranged outside the container yard area, the plurality of first branch drainage ditches are communicated with the main drainage ditch, the main drainage ditch penetrates through the cofferdam wall and is communicated with a municipal rainwater pipe, and a fire accident pool and an initial rainwater and sewage collecting pool are respectively communicated with one side of the main drainage ditch. The application can collect and dispose various wastewaters in the factory area in time, in order and effectively, can satisfy relevant requirements of environmental protection, and reduces the influence degree on the environment. Especially in the case of environmental risk accidents, the application can effectively control the pollution risk of the fire accident wastewater on the surrounding water environment and soil.

The invention relates to the field of coal mine goaf fire prevention and control, and discloses a coal mine goaf fireproof charge atomization device which comprises a drilling mechanism, a liquid conveying mechanism, an atomization mechanism, a charge mechanism and a diffusion injection mechanism. The drilling mechanism comprises a drilling machine, a drill rod and a drill bit. The drill rod and the drill bit are made of insulating explosion-proof materials, connected and integrally fixed to a drilling machine, the side walls are each of a double-layer design, and electric wires are arranged in an interlayer of the side walls. A water pipe passes through the drill rod, two ends of the water pipe are respectively connected with the liquid conveying mechanism and the atomizing mechanism, and the atomizing mechanism is fixed at the joint of the drill rod and the drill bit. The drill bit is of a divergent structure with the diameter gradually increased from the input end to the output end, and a charging mechanism and a diffusion jetting mechanism are arranged in the drill bit. Charged fog drops generated by the device can be used for realizing efficient and uniform spraying of a fire-proof material in a coal mine goaf, so that the occurrence of coal mine fire accidents is reduced.

The utility model relates to a kiln waste gas treatment system, which belongs to the technical field of waste gas treatment and comprises an air inlet pipe, a heat exchanger, an activated carbon box, an exhaust pipe and an air outlet pipe which are sequentially connected, the air inlet end of the air inlet pipe is connected with a kiln, a fire retardant valve is arranged between the heat exchanger and the activated carbon box, and a dust removal water tank is arranged on one side of the air inlet pipe. One end of the dedusting water tank is communicated with the air inlet pipe, the other end of the dedusting water tank is communicated with the air outlet pipe, and a bypass valve is arranged between the dedusting water tank and the air outlet pipe. The bypass pipe is arranged to control the bypass valve and the fire retardant valve to be opened or closed alternately, activated carbon in the activated carbon box is prevented from being ignited by waste gas of the high-temperature kiln, and fire accidents are prevented.

This invention relates to the field of tunnel disaster prevention and rescue technology, and in particular to a folding airbag device and its method of use for sealing off smoke from train fires in tunnels. The device includes a train consisting of a driver's cab and multiple carriages, and several identical folding airbag devices. These devices are arranged sequentially at intervals from the first to the last end of the carriages and are all fixed to the top of the carriages. In the event of a fire, the folding airbag device of this invention effectively seals off smoke, creating an effective isolation layer and increasing evacuation time for passengers in carriages that have not yet caught fire. It has the advantages of rapid response and high smoke blocking efficiency, effectively extending the available safe evacuation time for passengers in carriages that have not yet caught fire, reducing the harm of fire smoke to passengers, and improving the safety and reliability of trains in railway tunnel fire accidents.