35 results about "Smoke signal" patented technology

The invention discloses a fire smoke image early recognition method based on multi-modal fusion. The method comprises the following steps: S1, collecting multi-modal data and carrying out time alignment; s2, constructing a visible light branch, an infrared branch and a photoacoustic branch, generating multi-modal features, and storing the multi-modal features in a shared feature pool; s3, embedding a space-time tracking module in the shared feature pool, and generating global feature representation; s4, generating a dynamic background template by adopting a low-rank matrix decomposition algorithm, and separating and removing background noise; s5, multi-modal features are fused in the shared feature pool through a lightweight self-attention mechanism, and missing features are compensated; s6, enhancing an early smoke signal through a sparse feature enhancement algorithm, and performing fire state classification and smoke diffusion path prediction by applying a multi-task classification network; and S7, updating the shared feature pool and the space-time tracking module through a dynamic feedback mechanism. According to the invention, early-stage accurate identification of fire smoke is realized by using multi-modal fusion, space-time tracking and dynamic feedback methods.

The invention relates to the technical field of fire detection and alarm, and discloses an abnormal state detection method and system for a point-type anti-explosion smoke detector and a storage medium. According to the method, a plurality of anti-explosion smoke sensing addresses are obtained, and then polling signals are sent to the corresponding smoke sensing units in sequence to wait for response signals. If the response is not received, prompting that the line is abnormal; and if so, regularly acquiring the smoke sensing signal and the detection image data, and identifying the smoke data. When the smoke sensor gives an alarm but no smoke data exist, pollution abnormity is prompted; and if no smoke signal exists but smoke data exists, fault abnormity is prompted. According to the method, polling signals are combined with image analysis, line, pollution and fault anomaly detection is achieved, and the reliability and accuracy of the anti-explosion smoke detector in a complex environment are improved.

The invention discloses a multi-mode safety perception emergency linkage system, method, equipment and medium. The system comprises a multi-mode perception module, and a thermal imaging double-spectrum intelligent ball is used for temperature detection and smoke detection; the intelligent analysis module is in communication connection with the multi-mode sensing module, receives the detection data transmitted by the thermal imaging double-spectrum intelligent ball, analyzes the detection data to judge the type of a fire behavior, calculates an optimal flight path when the fire behavior is judged, and generates a fire extinguishing instruction containing the coordinate position of a fire source and the optimal flight path; the unmanned aerial vehicle linkage module is in communication connection with the intelligent analysis module; and the comprehensive control module is in communication connection with the intelligent analysis module. When temperature abnormity and smoke signals are captured at the same time, the two kinds of detection data are verified mutually, the false alarm problem of a traditional single detection mode is solved, and more importantly, the fire type can be accurately judged.

This invention relates to the field of cable monitoring technology, specifically disclosing a cable fire monitoring system and method based on distributed optical fiber sensing. The distributed optical fiber sensing unit is attached to the cable or its surroundings, simultaneously collecting temperature, vibration, and smoke signals and converting them into optical signals. After signal demodulation processing, an intelligent early warning and positioning unit, combined with algorithms, diagnoses the status and accurately locates the cable. A coordinated response unit automatically executes alarm, fire extinguishing, and power-off operations, while a remote monitoring unit enables multi-terminal visual control. This invention overcomes the limitations of single-parameter monitoring, offering high monitoring accuracy and fast response, effectively reducing false alarms and missed alarms. It is adaptable to various complex environments, possesses advantages such as high stability, low maintenance costs, and no need for on-site supervision, and can be widely applied to various cable fire monitoring scenarios to achieve early detection and early handling of potential hazards.

The invention discloses a shear box device for emitting visual smoke signals to early warn landslide disasters, particularly relates to the technical field of geological disaster monitoring and early warning, and solves the technical problem of insufficient early warning coverage rate of monitoring equipment in the prior art. The device is precisely deployed at a key monitoring point with soil stress high-sensitivity response in a potential landslide area, when geological disasters such as landslide occur, a stress field in a soil body is remarkably changed, upper and lower discs of a stratum slip interface are caused to generate relative shear motion, and then the upper and lower shear boxes are driven to generate displacement response, so that the soil body stress can be accurately detected. When the displacement reaches a preset threshold value, the load borne by the connecting mechanism breaks through the triggering critical value of the ignition device, then a rapid thermal activation mechanism is started, smoke signal powder in the smoke signal generation cabin is ignited, a high-visibility visual smoke signal is generated instantaneously, and visual early warning of the landslide danger can be achieved.

The present invention discloses a partitioned isolated flame-retardant energy storage box, which belongs to the technical field of battery energy storage system. A partitioned isolated flame-retardant energy storage box includes a box body and energy storage battery units, a master control module and a fire protection module which are detachably installed inside the box body, respectively. The master control module is electrically connected to the energy storage battery units and the fire protection module respectively; the energy storage battery units include an energy storage box shell, a cooling module, a plurality of partitions and a plurality of energy storage battery clusters, the energy storage battery clusters are arranged in an array inside the energy storage box shell, and adjacent energy storage battery clusters are partitioned, isolated and supported by partitions; the energy storage battery cluster includes a plurality of electrically connected energy storage batteries, and adjacent energy storage batteries are separated by cooling modules; smoke sensors are detachably installed on the top of the energy storage battery clusters, and are connected to the master control module signals, and are used to monitor the smoke signals of the burning energy storage battery clusters and send the signals to the master control module, so as to achieve the purpose of detecting the fire of the energy storage battery units.

The invention relates to the technical field of vehicle fire extinguishing, in particular to an automobile engine compartment fire extinguishing system which comprises a vehicle body, a dry powder fire extinguisher is installed in a luggage compartment of the vehicle body, a transition connector is installed at the driving end of the dry powder fire extinguisher, and a normally-closed electromagnetic valve is installed at the end, away from the dry powder fire extinguisher, of the transition connector. And a pipe joint is mounted at the output end of the normally closed electromagnetic valve. The first sensor and the second sensor which are of the same structure are installed on the two sides of the inner wall of the engine cabin, an all-dimensional fire monitoring network is constructed, all-weather real-time monitoring is conducted on the environment in the cabin, monitoring blind areas are effectively avoided, it is ensured that smoke signals generated at any position can be captured in time, and the safety of the engine is improved. The fire monitoring accuracy and reliability are greatly improved, precious time is won for follow-up fire extinguishing actions, spraying fire extinguishing can be conducted on a fire point at the initial stage of a fire, fire spreading is effectively avoided, and the safety of a vehicle is improved.

The utility model relates to the technical field of fire extinguishing and rescue models. A model for simulating fire spreading of a subway station comprises a station building, two sides of the station building are respectively provided with an entrance and exit I and an entrance and exit II, and the station building is provided with a tunnel, stairs, an elevator, a security check gate and a bidirectional platform. When the fire simulation device starts one simulation node to generate fire, the generated smoke spreads around the simulation node, and the nearby simulation nodes can be started after receiving a smoke signal, so that the simulation nodes in a spreading area can quickly form a fire spreading state according to the smoke trend after receiving the signal, and the fire can be simulated. According to the method, the fire disaster process can be restored more truly, firefighters can be helped to learn and drill, a better rescue route can be simulated according to an internal scene when a fire disaster occurs at one position, and fire disaster parameters can be adjusted under the condition of simulating the fire disaster, so that the learning effect is achieved.

The application discloses a kind of early identification methods of fire smoke image based on multi-modal fusion, comprising the following steps: S1, acquisition multi-modal data and carry out time alignment;S2, construct visible light branch, infrared branch and photoacoustic branch, generate multi-modal feature and store into shared feature pool;S3, embedding space-time tracking module in shared feature pool, generate global feature representation;S4, generate dynamic background template using low-rank matrix decomposition algorithm, separate and remove background noise;S5, by light self-attention mechanism in shared feature pool fusion multi-modal feature and compensate missing features;S6, by sparse feature enhancement algorithm enhances early smoke signal, and applies multi-task classification network to fire state classification and smoke diffusion path prediction;S7, by dynamic feedback mechanism updates shared feature pool and space-time tracking module.The application utilizes multi-modal fusion, space-time tracking and dynamic feedback method, realizes the early accurate identification of fire smoke.

This invention relates to the field of energy storage technology, specifically to a collaborative protection control system and method for fully silent liquid-cooled energy storage modules. The method establishes a thermal coupling topology diagram between energy storage modules, collects temperature, temperature rise rate, and smoke signals in real time, and uses sliding window filtering to determine a three-level safety status: pre-control, suppression, and emergency. It identifies modules that have reached the suppression level and determines the risk propagation domain based on thermal coupling weights. Electrical isolation and fire suppression are implemented on the affected modules, while neighboring modules are subjected to graded load reduction and enhanced thermal management according to thermal coupling weights. Under system resource constraints, fire protection resources for the affected modules are prioritized, and cooling resources are allocated to neighboring modules based on the product of thermal coupling weights and temperature indicators. This invention can accurately delineate risk propagation boundaries, achieve collaborative protection and optimized resource scheduling among multiple modules, effectively suppress the cascading spread of thermal runaway, and improve the safety and availability of energy storage systems.

The present invention belongs to the field of remote monitoring technology and discloses a remote control method and terminal for an automatic fire alarm system. The remote control method comprises the following steps: detecting main link signal parameters, generating a real-time status in combination with terminal data, extracting candidate link flow capacity ratios and base station processing capacity scores when signals exceed limits, scanning frequency band interference, weighted screening of subcarriers, migrating smoke signals, analyzing path loss and reflections, generating thermal coordinates in combination with a building structure database, and outputting monitoring results. The present invention regularly monitors signal strength, bit error rate, and transmission delay, introduces dynamic weighted optimization for link selection, improves link switching flexibility and efficiency, uses a signal allocation strategy to enhance responsiveness to environmental changes, and enhances monitoring flexibility and reliability, and uses path loss and multipath reflection number analysis to ensure effective signal screening, thereby improving the efficiency and accuracy of remote monitoring.

The utility model relates to the technical field of laboratory security, in particular to an intelligent security monitoring alarm device for a laboratory. Comprising a control box and an auxiliary assembly, a single-chip microcomputer is fixedly arranged in the control box, the single-chip microcomputer is electrically connected with a relay assembly, the auxiliary assembly comprises a smoke sensor, a water pump, a spraying head, a displayer, a temperature sensor and a buzzer, and when a fire occurs in the laboratory, the smoke sensor detects a smoke signal, and the single-chip microcomputer is connected with a water pump power source according to a set program; the water pump pumps external water and then conveys the external water to the spraying head to be sprayed out, fire extinguishment is achieved, meanwhile, the buzzer gives an alarm through sound, personnel can rapidly respond to conduct fire treatment, intelligent monitoring of the fire in the laboratory is achieved, rapid fire alarm is facilitated, and workers can be assisted to conduct fire extinguishment treatment.

The invention relates to the technical field of civil engineering safety monitoring, and particularly discloses a civil engineering site fire risk intelligent assessment system and method. The system comprises an image module, a smoke module and an AI module, the image module comprises a first camera and a second camera which are used for collecting image information of a construction site from different angles, and the smoke module comprises a plurality of smoke sensors which are used for sensing smoke signals in a specific area of the construction site. And the AI module comprises a position identification sub-module, a behavior identification sub-module and a smoke feature analysis sub-module, and is used for performing multi-dimensional fusion processing on the acquired images and smoke signals, and performing intelligent identification and risk assessment on the smoking behavior of the construction personnel based on a set risk scoring algorithm. According to the method, sensing signal triggering, image behavior analysis and multi-source information matching are combined, a set of three-dimensional and real-time smoking recognition and early warning mechanism is constructed, and the intelligent management level of construction site fire safety can be effectively improved.

The application discloses a Pb5S2I6 nanowire self-assembled film, a preparation method of the Pb5S2I6 nanowire self-assembled film and application of the Pb5S2I6 nanowire self-assembled film in a two-factor fire alarm. The Pb5S2I6 nanowire self-assembled film is formed by self-assembly of Pb5S2I6 nanowires with an average diameter of 70-150 nm, and has photoelectric performance. The self-assembled film can be made into a photoelectric gas sensitive sensor device, and further judgment of a smoke signal in a fire is realized on the basis of gas sensing in the fire through photoelectric response characteristics of the device. That is, a fire warning can be caused by a double factor of gas and smoke, and the accuracy of the alarm is greatly improved.

The present application provides a smoke exhaust control method, device and system for a central range hood. The method is applied to the main control system of the central range hood, and the main control system is respectively connected to an automatic smoke sensing device, a plurality of terminal range hoods and a main engine fan. After at least one terminal range hood is started, a first smoke signal sent by the automatic smoke sensing device is received; the first smoke signal is obtained by the automatic smoke sensing device through real-time detection of the smoke in the common flue; a target smoke exhaust control signal is generated according to the first smoke signal and a preset reference signal; and the operation of the main engine fan is controlled according to the target smoke exhaust control signal. The present application can control the smoke exhaust operation of the main engine fan in real time according to the smoke signal collected by the automatic smoke sensing device. Even when the main control system cannot communicate normally with the terminal range hoods, the smoke can be discharged in time, avoiding the phenomenon that the cooking fumes are blocked in the flue and pour back into the homes of users on each floor.

The invention relates to the technical field of automobile passive safety, and provides an active pre-tightening safety belt control system with an automatic unlocking function after collision, and a control unit is arranged to control a motor of a pre-tightening unit to move in a retractor to roll a safety belt, so that the pre-tightening of the safety belt is realized. The control unit further controls an electromagnet of the electric control unlocking unit to generate electromagnetic force to unlock the electromagnetic lock catch, and electric control unlocking is achieved. The control unit communicates with a system of the vehicle and controls unlocking according to the state of the vehicle. The control unit further receives a smoke signal of the vehicle to sense occurrence of a fire so as to control unlocking of the safety belt. And a thermal fusing unlocking unit is arranged, and when a fire breaks out due to collision, low-melting-point alloy in the safety belt spring bolt is fused at high temperature, so that the safety belt is unlocked. The control unit is further connected with a B column deformation sensor and a seat pressure sensor, a safety belt is unlocked according to signals from the two sensors, and personnel safety is guaranteed.

The present application relates to the technical field of fire detection and alarm, and discloses a method, system, and storage medium for detecting abnormal conditions of point-type explosion-proof smoke sensors. The method first obtains multiple explosion-proof smoke sensor addresses, then sends polling signals to the corresponding smoke sensor units in sequence, and waits for a response signal. If no response is received, it indicates a line abnormality; if a response is received, the smoke sensor signal and detection image data are obtained at regular intervals to identify the smoke data. When the smoke sensor alarms but there is no smoke data, it indicates a pollution abnormality; when there is no smoke signal but there is smoke data, it indicates a fault abnormality. The method combines polluting signals with image analysis to achieve line, pollution, and fault abnormality detection, thereby improving the reliability and accuracy of explosion-proof smoke sensors in complex environments.

The embodiment of the invention provides a universal installation matching frame for a self-lighting lamp and a spontaneous smoke signal of a ship life buoy and a ship. The universal installation matching frame comprises a rectangular plate-shaped main body 2, at least two different mounting hole position modes are integrated on the plate-shaped main body 2, and each mounting hole position mode is matched with a mounting interface of a self-lighting lamp and smoke signal device 1 of a specific manufacturer; and the plate-shaped main body 2 is geometrically symmetrical about a central axis P, so that the matching frame can be compatibly mounted with a port or starboard structure of a ship after being overturned by 180 degrees around the central axis P. According to the technical scheme, the defects in the prior art can be overcome, and design, manufacturing and installation errors are effectively avoided.

The utility model discloses an intelligent fire alarm, relates to the technical field of fire alarm, and solves the problems of system false alarm, low intelligent degree, low networking degree and insufficient circuit safety and use performance of the existing small smoke fire detection alarm system. The system comprises a single-chip microcomputer, a temperature acquisition module, a smoke acquisition module and an alarm module, the single-chip microcomputer, the temperature acquisition module, the smoke acquisition module and the alarm module are all connected with the single-chip microcomputer, the temperature acquisition module is used for acquiring temperature signals, the smoke acquisition module is used for acquiring smoke signals, and the alarm module is used for alarming. According to the utility model, the temperature acquisition module and the smoke acquisition module are used for monitoring and displaying the temperature value and the smoke gas concentration in real time, and fire hazard pre-judgment and alarm are carried out based on the temperature value and the smoke gas concentration; according to the utility model, specific circuits of the fire alarm are set in details, so that the circuit performance is better.

The utility model discloses a movable energy storage system fire-fighting device which comprises a box body, a fire extinguishing agent storage bottle is fixed in the box body, an outlet of the fire extinguishing agent storage bottle is communicated with a fire extinguishing agent pipeline through an electromagnetic valve, the fire extinguishing agent pipeline extends towards the upper portion of the box body, a nozzle is arranged at the top end of the fire extinguishing agent pipeline, and the nozzle is communicated with the box body. The box body comprises a door, a controller is fixed on the door, the electromagnetic valve is electrically connected to the controller, the controller is electrically connected with a sensor used for sensing temperature and / or smoke, when the controller judges that a temperature and / or smoke signal sensed by the sensor reaches a set threshold value, the electromagnetic valve is controlled to be opened, and the door is opened. And the fire extinguishing agent storage bottle sprays a fire extinguishing agent through the fire extinguishing agent pipeline and the nozzle. According to the utility model, potential safety hazards during operation and maintenance of the energy storage system can be reduced, and the transportation safety of the mobile energy storage system can be improved.

The utility model relates to a ventilation equipment technical field, and disclose an intelligent ventilation linkage device, including the exhaust fan of wind pipe and wind pipe inside installation, the one end of wind pipe is inclined downward setting, and the bottom fixed communication of one end of wind pipe has monitoring pipe. This kind of intelligent ventilation linkage device, through the collaborative design of micro fan and monitoring pipe, initiatively accelerates the airflow flow around the wind pipe entrance, makes smoke concentration sensor can more quickly, accurately capture smoke signal, compared with traditional passive monitoring mode, significantly shortens the fire early warning response time, simultaneously, the axis alignment structure of monitoring pipe and micro fan ensures airflow directional flow, avoids monitoring blind area, further improves the reliability of fire prevention, and photovoltaic power generation module is powered for micro fan, realizes the self -sufficiency of clean energy, reduces the dependence on external power grid, reduces operating energy consumption.

The invention discloses a control method and system for a potassium ion aerosol fire extinguishing device based on big data analysis, and the method comprises the steps: collecting a temperature signal and a smoke signal through a plurality of types of detection devices, carrying out the fusion processing, and carrying out the grouping analysis of the fusion signal through a data grouping method, and precisely obtaining a fire source position coordinate; and extracting temperature gradient data of a surrounding area based on the fire source position coordinates, and performing time sequence prediction by using a prediction model to determine a fire behavior change trend. If the trend exceeds a preset threshold value, the adjusting module is activated, a peak intensity index is obtained from the trend to generate a spraying intensity parameter to control the release amount of the potassium ion fire extinguishing core, a directional control instruction is generated according to the parameter to adjust the spraying angle and flow, and fire source area coverage distribution is achieved. Through dynamic adjustment fusion of a fire source positioning mechanism of signal fusion and grouping analysis and temperature gradient time sequence prediction, accurate and efficient fire extinguishing is ensured, the fire response speed is increased, fire extinguishing resource utilization is optimized, and the fire spreading risk is remarkably reduced.

1. The name of this design product: Starter (rotary continuous firing). 2. Purpose of the product of this design: Equipment that fires starting bullets to produce sound and smoke signals during sports competitions. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. Omit the bottom view.

The invention discloses a fast throwing life buoy and a combined smog signal composite support, the fast throwing life buoy comprises a base plate (1), a steel plate (2), a flat iron smog signal support (3), three support columns (4) and a fast throwing life buoy frame (5), the base plate (1) is fixed on the bottoms of the three support columns (4), the steel plate (2) is installed on the fast throwing life buoy frame (5), and the steel plate (2) is installed on the fast throwing life buoy frame (5). The flat iron smoke signal support (3) and the quick-throwing life buoy frame (5) are fixed to the three supporting stand columns (4) respectively, and the quick-throwing life buoy and the combined smoke signal composite support are small in occupied space, convenient to construct and capable of improving the working efficiency and providing convenience for follow-up repair and maintenance.

The invention relates to a lithium battery pack, in particular to a lithium battery pack with an automatic fire extinguishing function. The lithium battery pack with the automatic fire extinguishing function comprises a bottom plate, a supporting plate, a non-slip mat, an anti-collision column, a damping plate and a lithium battery pack body. Supporting plates are welded to the left portions and the right portions of the front side and the rear side of the bottom plate correspondingly, anti-skid pads are arranged at the bottoms of the supporting plates correspondingly, anti-collision columns are symmetrically welded to the left side and the right side of the bottom plate correspondingly, damping plates are connected between the anti-collision columns, the number of the damping plates is four, and a lithium battery pack is further placed on the bottom plate. The lithium battery pack can be wrapped through cooperation of an anti-collision column, a damping plate and the lithium battery pack, a fire extinguishing agent can be sprayed to the lithium battery pack through cooperation of a liquid storage box, a liquid conveying pipe and a glass pipe, and therefore the fire extinguishing function of the lithium battery pack is achieved; the flashing of the display lamp can be controlled, the water flow controller can be turned on, and the flashing of the display lamp plays a warning role.

The application relates to the technical field of smoke detection, in particular to a smoke detection and alarm mechanism, which comprises a mounting frame and a main shell mounted on the mounting frame; a control cylinder is mounted at the top of the inner cavity of the main shell; a detection cylinder is mounted at the bottom of the control cylinder; a rotating cylinder is mounted at the bottom of the detection cylinder and is fixed through a fixing disc; a detector is mounted in the detection cylinder; a plurality of detection tubes extending to the outside of the rotating cylinder are mounted at the bottom of the detector; when a small amount of smoke information is detected at the tail end of the detection tube, the suction direction of the rotating cylinder can be adjusted, and the suspicious air can be quickly sucked into the rotating cylinder and contacted with the middle part of the detection tube, so that the air can be fully detected, the smoke signal source can be accurately and efficiently judged, and whether the alarm is sent can be determined according to the result; compared with a traditional smoke detection alarm, the detection and alarm mechanism can suck a large amount of suspicious air in advance, full detection is realized, the early warning effect is better, and the overall mechanism is convenient to assemble, overhaul and maintain, and the use effect is better.

The invention belongs to the technical field of new energy automobile batteries, and particularly relates to a new energy automobile lithium ion battery thermal runaway suppression system and a method thereof.The system comprises a battery assembly, and the battery assembly is electrically connected with a battery management module, a battery monitoring module, an overheating alarm module and an overheating fire processing module; the battery monitoring module is used for monitoring voltage change data, temperature change data and air pressure change data in the battery and flame or smoke signal data generated in the battery after overheating in real time; the overheat alarm module is electrically connected with the battery monitoring module and is used for judging high-temperature data detected by the battery and giving an alarm according to the condition of flame smoke generated by overheat of the battery; and the overheating alarm module is electrically connected with the overheating fire processing module, and the overheating fire processing module is used for carrying out suppression processing on the overheating alarm or high-temperature fire condition of the battery. The invention further discloses an operation method of the system. The battery data can be automatically monitored, and the overheating condition can be automatically inhibited.

This invention belongs to the technical field of aviation smoke detectors, and discloses a full-range smoke concentration detection system and method for photoelectric smoke detectors. Based on photoelectric smoke signal acquisition and conditioning technology, it uses a full-range smoke concentration detection method to avoid the constraints of analog-to-digital conversion interface input voltage limiting, enabling the smoke detector to detect smoke concentrations of (0-100)% / ft while ensuring detection accuracy. The smoke detector using this solution has the advantages of simple topology, controllable program, high flexibility, easy implementation, high reliability, and full-range concentration detection.

The invention belongs to the technical field of electrical fire, and discloses an electrical fire monitoring and emergency response laser positioning system which comprises a laser radar device, a data processing unit, a communication module and a monitoring platform. According to the laser positioning system for electrical fire monitoring and emergency response, the laser radar device is used for emitting laser beams and receiving reflected signals, the reflected signals are analyzed in combination with the data processing unit, and a fire source can be accurately detected and positioned; the smoke particles and the water mist particles can be distinguished according to different depolarization ratios of the smoke particles and the water mist particles, so that false alarms caused by environmental factors (such as water vapor and dust) are avoided; in addition, the data processing unit also applies a waveform decomposition method and a frequency domain analysis method to extract weak smoke signals from background signals, and the accuracy of fire source identification is further improved. Once the position where the fire occurs is determined, the communication module wirelessly transmits information to the monitoring platform, and it is ensured that the fire source is rapidly and accurately positioned.

The embodiment of the utility model discloses a battery changing cabinet, the battery changing cabinet comprises a cabinet body, a battery compartment arranged in the cabinet body, a battery compartment fan, a cabinet body fan, a smoke sensor and a control panel, the battery compartment fan and the battery compartment are arranged in a one-to-one correspondence manner, and the smoke sensor sends a smoke signal to the control panel when detecting smoke. And the control panel controls the plurality of battery compartment fans and the cabinet body fan to be started simultaneously according to the smog signal so as to discharge smog in the battery compartment and the cabinet body out of the cabinet body. According to the battery replacement cabinet, combustible gas can be quickly discharged out of the cabinet body by utilizing the battery bin fan and the cabinet body fan, so that air exchange in the cabinet body is realized, the possibility of explosion is reduced, and the loss is reduced.