65 results about "Fire point" patented technology

The invention relates to the technical field of environmental pollutant detection, in particular to a straw open-air incineration pollutant emission quantitative method based on multi-source data fusion, which comprises the following steps: based on air pollutant monitoring data, calling a sensor network to obtain PM2.5, CO and NOX concentrations, analyzing fire point heat radiation intensity, collecting meteorological data, and calculating the concentration of PM2.5, CO and NOX; and obtaining a pollution source data set by combining the time sequence change of the fire points and the meteorological parameters. By integrating an environment monitoring sensor, satellite remote sensing and ground meteorological data, the comprehensiveness and accuracy of pollution source monitoring are improved, the combination of fire point intensity and pollutant concentration time sequence data is optimized, the evaluation of fire point and pollution hot spot areas and the comprehensive analysis of wind directions and meteorological conditions are optimized, the accuracy of a pollutant diffusion model is improved, and the pollution source diffusion efficiency is improved. The pollutant release amount is dynamically adjusted, and the diffusion model is corrected by using a geographic information system, so that the scientificity of pollution prediction and emission intensity evaluation is enhanced, and more accurate pollution prevention and control decision support is provided.

The invention provides a forest disaster detection method and device, and belongs to the field of forest disaster monitoring, and the method comprises the steps: collecting an infrared image, a stereoscopic vision image and positioning data of a target forest region in real time; an ASSA module is introduced in the feature extraction stage of the YOLOv11, and an infrared image is input into the improved YOLOv11 for flame target recognition; recognizing the stereoscopic vision image through a smoke and fire recognition algorithm, and detecting flame and smoke targets; determining a fire detection result by combining the identification results of the flame target and the smoke target; under the condition that the fire disaster is determined to occur, an HITNet algorithm is adopted to carry out ignition point positioning through a stereoscopic vision image, and the geographic coordinates of a fire disaster point are determined based on positioning data; and sending alarm information based on the fire point geographic coordinates. Therefore, the capability of extracting the flame heat radiation characteristics of the tiny fire points is effectively enhanced, and the detection result of the forest fire is improved.

The invention discloses a fire monitoring system and method. The system comprises a terminal layer, an edge layer and a cloud layer, the terminal layer is used for monitoring a target area in real time and transmitting monitoring data acquired by each sensor to the edge layer; the edge layer is used for performing feature fusion of a time dimension and a space dimension on the monitoring data to obtain a space-time fusion feature, and extracting a visual feature from the monitoring data; fire point and smoke recognition is carried out by fusing the space-time fusion features and the visual features, when a fire point or smoke is recognized, a fire alarm is triggered, and monitoring data is transmitted to the cloud layer; and the cloud layer is used for constructing a hierarchical risk assessment system based on the monitoring data, performing fire risk evolution path assessment based on the hierarchical risk assessment system, and generating a fire processing decision according to an assessment result. According to the invention, the fire detection precision is improved, the missing report rate and the false alarm rate are reduced, and the practicability of the system is improved.

The invention discloses a dynamic fire extinguishing strategy generation method and system based on fire behavior development stage grading, belongs to the technical field of artificial intelligence, and aims to solve the problems of rapid fire behavior spreading and toxic and harmful flue gas retention in a fire disaster in a closed space of a multi-layer underground parking lot. The target tracking device firstly uses image identification to position a fire point, then uses the fire source detection device to collect a fire type and a fire behavior degree, and generates triple data; the data are input into a fire behavior stage grading model, and the fire behavior is divided into an incubation period, an accelerated spread period and a deflagration period according to a combustion entropy threshold value. According to the current stage, the corresponding fire extinguishing strategy is loaded from the blocking priority rule base, and in the detonation period, the aerogel flame retardant is only allowed to be put into the top ventilation opening in the fire diffusion direction. And then the fire scene control instruction drives the fire behavior blocking robot to release the flame retardant on time at a fixed point, and environment parameters after release are collected and fed back to the model. And if the combustion entropy value crosses the stage threshold value, the model triggers the blocking strategy to be dynamically switched.

The invention relates to the technical field of fire remote sensing application, and particularly discloses a method suitable for wind cloud satellite fire remote sensing application, and the method specifically comprises the following steps: 1, data preprocessing: obtaining wind cloud satellite fire original data, and carrying out the comprehensive preprocessing of the wind cloud satellite fire original data; step 2, identification model construction: based on radiation transmission and fire point spectral characteristics, establishing an identification model in combination with multi-spectral channel data; and inversion: inversing parameters of fire point temperature and area based on a thermal radiation transmission theory and multi-channel data. All-weather and high-time-efficiency fire monitoring is achieved, dynamic fire monitoring data are obtained in real time, the monitoring range is wide, the time frequency is high, the accuracy is high, the core area of a fire scene is accurately positioned through the hyperspectral monitoring technology, key data support is provided for rescue, and the rescue efficiency is improved. According to the recognition model, wind cloud satellite fire remote sensing is applied to fire dynamic monitoring and evaluation, fire emergency drilling, fire dynamic early warning and fire plan.

The invention relates to the technical field of artificial intelligence and fire monitoring, and provides an underground pipe gallery fire extinguishing method and system.The fire extinguishing method comprises the steps that a next behavior decision sequence is determined according to current fire behavior spreading information, current fire behavior information, the respective current fire extinguisher position of at least one target fire extinguisher and the current ignition point position of an ignition point; generating a next control instruction according to the next behavior decision sequence; a next behavior decision sequence is sent to the movable sliding rails where the at least one target fire extinguisher is located, and the next behavior decision sequence is used for controlling the movable sliding rails where the at least one target fire extinguisher is located to slide along the fixed rail according to the next driving parameter indicated by the next motion control parameter. And driving the at least one target fire extinguisher to slide, so that the at least one target fire extinguisher extinguishes the ignition point.

The invention relates to the technical field of forest fire emergency disposal, in particular to a helicopter-borne forest fire automatic identifying, positioning and extinguishing method and system. The method comprises the following steps: identifying infrared suspected fire points according to meteorological conditions and a space-time weight matrix; analyzing the probability of the open fire and the smoke by using the spectral response difference of the open fire and the smoke in different wavebands; generating a high-confidence three-dimensional fire point list based on a D-S evidence theory in combination with the infrared suspected fire point, the open fire and smoke probability, the combustion intensity and the live wire intensity; constructing a multi-objective optimization model, and solving a to-be-extinguished line and a region priority list in combination with the multi-objective optimization model, fire scene topographic feature parameters, fire line spreading features and the high-confidence three-dimensional fire point list; and generating or adjusting a flight route and a fire extinguishing instruction through a model prediction control framework based on a delivery window, the high-confidence three-dimensional fire point list and the to-be-extinguished line and area priority list.

The invention provides a mountain fire monitoring method and system based on laser radar and thermal infrared. The method comprises the following steps: combining three-dimensional point cloud data with thermal radiation distribution data to generate a target fire diffusion path; an embedded real-time processing chip deployed in the detection unmanned aerial vehicle is utilized to perform real-time processing on the thermal radiation distribution data, a temperature abnormal area is identified, an interference area is removed, and a fire point position and a classification result are generated; and based on the target fire behavior diffusion path, the fire point position and the classification result, a dynamic scheduling instruction is sent to the fire extinguishing unmanned aerial vehicle cluster through a low-delay communication link so as to adjust the fire extinguishing agent throwing position, the fire extinguishing dosage and the coverage range of each fire extinguishing unmanned aerial vehicle in the fire extinguishing unmanned aerial vehicle cluster. According to the method, the three-dimensional point cloud and thermal radiation data of the forest fire area are collected in real time, the fire diffusion path is predicted in combination with an intelligent algorithm, and the fire extinguishing unmanned aerial vehicle cluster is dynamically scheduled, so that accurate positioning, interference filtering and optimal space distribution of fire extinguishing resources can be realized.

The invention discloses a mechanical trigger type active fire extinguishing power distribution cabinet, and relates to the technical field of power distribution cabinets, the power distribution cabinet comprises a cabinet body, a mounting rack and a clamping rail, the mounting rack comprises two vertical plates fixedly connected in the cabinet body and a plurality of transverse plates fixedly connected between the two vertical plates, and the clamping rail is mounted on the mounting rack through screws. The clamping rails are used for mounting electronic elements; the fire extinguisher is provided with an execution component, and the execution component is used for controlling the fire extinguisher to work; the lifting component is used for controlling the fire extinguisher to descend. The multiple sensing parts are arranged to correspond to the multiple areas of the mounting frame, real-time monitoring of the temperature conditions of all the areas is achieved, targeted fire extinguishing operation is achieved, gravitational potential energy is used as a power source, core actions such as lifting, translation and spraying triggering do not need electric power support, and even if a circuit is completely damaged due to a fire disaster, the fire extinguishing effect is good. And the fire extinguishing device can still accurately move to a fire point through a mechanical structure to complete fire extinguishing.

The present application relates to the technical field of forest fire emergency disposal, in particular to a helicopter-borne forest fire automatic identification positioning and extinguishing method and system. The method comprises the following steps: identifying infrared suspected fire points according to meteorological conditions and a space-time weight matrix; analyzing open fire and smoke probability by using the spectral response difference of open fire and smoke in different wave bands; generating a high-confidence three-dimensional fire point list based on D-S evidence theory in combination with the infrared suspected fire points, the open fire and smoke probability, and the burning intensity and fire line strength; constructing a multi-objective optimization model, and solving a to-be-extinguished fire line and a regional priority list in combination with the multi-objective optimization model, fire field terrain feature parameters, fire line spread characteristics, and the high-confidence three-dimensional fire point list; and generating or adjusting a flight route and an extinguishing instruction through a model predictive control framework based on a throwable window, the high-confidence three-dimensional fire point list, the to-be-extinguished fire line and regional priority list.

The present invention relates to the technical field of fire scene investigation, and specifically to a method for on-site positioning and restoration of a fire point via a surveillance video. The method comprises the following steps: exporting a surveillance video into a video format recognizable by a PC, searching for characteristic frames, recording characteristic frames where flames or smoke first appear, converting the frames into picture A, recording coordinates of the leftmost and rightmost pixels of the flame, connecting the method to an on-site positioning device to collect online video and read the video of a surveillance camera, drawing an on-site position map, determining the closest and farthest possible distances between the flame position at the fire scene and the camera, finding an on-site position corresponding to these coordinate points and marking it in a plane map, and marking the range of the fire point in the video, i.e., the range formed by the projection of all possible positions onto the ground. Compared with the prior art, the present invention calculates and exports the fire coordinate points in the original video, loads the video signal of the video camera at the same position at the scene into the device, locates the fire point at the actual scene, and thus achieves high-precision positioning at the actual scene.

The utility model relates to the technical field of containers, and discloses a container built-in fire-fighting pipeline structure which comprises a box body frame, a fire-fighting spraying mechanism and a spraying adjusting mechanism, a groove is formed in the top of the box body frame, and a through hole is formed in the bottom in the groove of the box body frame. By arranging the fire-fighting spraying mechanism and the spraying adjusting mechanism, fire can be quickly extinguished through the sprayers arranged at all points in the box body frame under the condition that the fire occurs in the box body frame, the fire can be extinguished under the condition that the box door cannot be opened, the diffusion of dense smoke can be effectively reduced, and the fire extinguishing efficiency is improved. And through the spraying adjusting mechanism, the position of water sprayed by the spraying heads can be driven to be changed, so that the water sprayed by the multiple groups of spraying heads is aligned to the fire point position, the efficiency of extinguishing the fire point in the box body frame is improved, and the loss caused by goods is reduced.

The present invention provides a micro-intelligent fire extinguishing control system and method, including: a micro-mobile fire extinguishing deformation body subsystem, which forms a micro-mobile fire extinguishing deformation body from fire extinguishing materials through a micro-deformable combined structure, and combines and deforms according to the pore shape at the fire point part to accurately deliver the fire extinguishing materials to the root part of the ignition point; a fire point root sensing and tracking subsystem, which monitors the local temperature distribution at the fire occurrence part through infrared sensing to track the root part of the fire point; a cloud-based rapid fire situation analysis and prediction subsystem, which rapidly analyzes the fire situation at the root part of the fire point and rapidly predicts the fire point spread trend part through a fire situation analysis and prediction cloud platform; a micro-intelligent fire extinguishing deformation control subsystem, which reads the fire situation analysis results at the root of the fire point and the cloud analysis results of the fire point spread trend, and intelligently controls the deformation and movement of the micro-mobile fire extinguishing deformation body to reach the root part of the fire point and the fire point spread trend part, triggers the micro-mobile fire extinguishing deformation body to accurately extinguish the fire, and blocks the fire point spread trend.

The invention discloses a self-excitation fire extinguishing composition, a preparation method and application, and the self-excitation fire extinguishing composition comprises the following components in percentage by mass: 30%-63% of a main fire extinguishing component, 10%-15% of a low-ignition-point substance, 10%-20% of a flame inhibition component, 15%-38% of a gas production component and 15%-38% of an adhesive. According to the self-excitation fire extinguishing composition, the raw materials and the preparation method are simple, heat generated by a fire scene can be automatically absorbed to carry out flameless chemical reaction when a fire disaster occurs, and gas and fire extinguishing substances are generated; the device has a low-temperature automatic function and does not need to be externally connected with conventional detectors such as smoke sensing and temperature sensing.

The invention discloses a flame identification method for an infrared thermal imaging detector, which relates to the technical field of infrared thermal imaging, is used for improving the accuracy of fire identification, and comprises the following steps: obtaining a visual thermal image generated by an infrared thermal imaging detection assembly, analyzing temperature anomaly according to the thermal image, positioning a temperature anomaly point, and obtaining a flame identification result. Acquiring an included angle between an observation direction vector and a reflection direction vector of the component according to the positioning and judgment time of the temperature abnormal point, judging whether the temperature abnormal point is reflected, marking the temperature abnormal point which does not accord with the reflected light as a suspicious fire hazard monitoring point, and identifying combustible materials of the suspicious fire hazard monitoring point. Analyzing the combustion risk of the combustible at the suspicious fire monitoring point according to the combustible ignition point data and the oxygen data, and analyzing the possibility that the suspicious fire monitoring point is a flame according to the image data of the suspicious fire monitoring point; and analyzing whether a fire occurs at the suspicious fire monitoring point according to the combustion risk of the combustible at the suspicious fire monitoring point and the possibility that the suspicious fire monitoring point is flame.

The utility model discloses a profiled plate roof fixing support welding spark anti-overflow device which comprises a left opening fire receiving groove, a right opening fire receiving groove, clamping plates and a baffle, the two sides of the left opening fire receiving groove and the right opening fire receiving groove are hinged through a pin shaft, the clamping plates are arranged on the opening edges of the left opening fire receiving groove and the right opening fire receiving groove in the length direction respectively, and the baffle is arranged on the left opening fire receiving groove and the right opening fire receiving groove. Limiting long grooves are formed in the middles and one sides of the baffles respectively, limiting rods are arranged on the two sides of the left opening fire receiving groove respectively, the baffles are arranged on the two sides of the left opening fire receiving groove and the two sides of the right opening fire receiving groove respectively, the pin shaft penetrates into the limiting long grooves in the middles of the baffles, the limiting rods penetrate into the limiting long grooves in one sides of the baffles, and nuts are screwed into the pin shaft and the limiting rods respectively. The spill-proof device has the advantages of being light, portable, convenient to disassemble, assemble and operate, good in leakproofness and the like, the risk that welding sparks overflow can be reduced, meanwhile, the construction time and cost for setting up fireproof measures below a movable fire point are saved, and the construction efficiency is improved and potential safety hazards are eradicated while the contour plate replacement construction safety is guaranteed.

The present application relates to lighter technical field, disclose a kind of ultra-thin fire gathering flat fire ignition system and ultra-thin lighter, including air outlet valve, tower pipe pressure cap, tower pipe, tower head, porcelain cup, porcelain cup;Tower head is shaped with the air outlet of downside opening, the upper end of tower head is shaped with taper portion, taper portion is shaped with multiple radial air outlet holes, the inner end of air outlet hole is communicated with air outlet;Porcelain cup upper shell is flat, the inside of porcelain cup upper shell is shaped with the waist type flat hole, the two side arc walls of waist type flat hole are inwardly inclined and set as inner "eight". By the waist type and conical setting of the inner hole of porcelain cup, the fire can be flat and gathered, and the fire can be linear and flat, which can increase the flame area. By replacing the existing multiple ignition mode with surface ignition mode, the consumption and waste of gas can be further reduced for larger diameter tobacco. The lighter using the ignition system can be ultra-thin, convenient to carry and improve the appearance.

The invention provides a fire point detection position and area estimation method based on an ortho-angle of view of an unmanned aerial vehicle. The method comprises the steps of 1, planning a flight route of an unmanned aerial vehicle, and setting flight height and an orthographic view angle; step 2, cascading real-time video streams collected by an unmanned aerial vehicle camera through a GB / T28181 protocol; 3, fire point area detection is carried out on the collected video, and the pixel point position of a fire point is identified; and 4, estimating the area of the fire point according to the internal reference and the flight height of the unmanned aerial vehicle camera, and determining the area by the number of fire point pixels. According to the method for estimating the flame detection area at the orthographic view angle of the unmanned aerial vehicle, the real position and area estimation of flame pixel points in a picture inferred by deep learning can be quickly calculated according to the flight height and the internal reference of the camera. According to the method, the estimated position and area are calculated according to different camera loads mounted on the unmanned aerial vehicle, the accuracy is high, and the practicability is high.

The present application relates to the technical field of escape route analysis, and discloses a dynamic three-dimensional escape route generation method based on a fire point, comprising: acquiring temperature data, smoke data, train state data and a three-dimensional space structure in a target site in real time, analyzing the preprocessed temperature data, smoke data and train data to obtain three-dimensional coordinates of the fire point and a fire situation-train coupling risk factor, and the target site being a subway station; capturing flow field changes through a three-dimensional transient wind flow field intensity atlas, and finally constructing a dynamic risk avoidance traffic atlas and generating an escape route in combination with regional smoke condition adaptive weight values and exit dynamic evacuation efficiency values, wherein the route generation process is real-time adaptive to dynamic changes of the flow field, smoke and personnel distribution, which ensures route safety and also takes into account evacuation efficiency, and effectively avoids route failure caused by flow field or smoke mutation.

The present application relates to the technical field of monitoring or controlling charging stations, and in particular to a charging pile safety monitoring method and system, comprising the following steps: step 1, monitoring phase; step 2, primary feedback; step 3, traceability analysis phase, determining the fire point and the fire cause; step 3.1, on-site situation extraction; step 3.2, fire point analysis, based on image features, when the pixels in the image satisfy the condition of brightness L>L thresh and color in C range , the area where the pixels are located is determined as a suspected flame area F; the present application realizes accurate and comprehensive monitoring and safety warning through the real-time collection of data by multiple sensors in all directions. Through traceability analysis, the fire point and the cause can be quickly and clearly determined, and the responsibility can be defined. The primary feedback timely alarms and assists in judgment, and the secondary feedback is targeted based on the traceability results, the double feedback mechanism optimizes the emergency process, improves the user experience, and comprehensively safeguards the operation safety of the charging pile.

The invention discloses a two-lane road traffic tunnel disaster analysis method and system, and is applied to the technical field of intelligent disaster prevention, and the method comprises the steps: obtaining the position and temperature data of a known fire source when a fire disaster occurs in a target tunnel; inputting the plurality of temperature data into a single fire source temperature model to calculate a plurality of first vault highest temperatures, and judging whether an unknown fire source exists or not; inputting the plurality of temperature data and the fire source distance into a double-fire-source temperature model to calculate a plurality of second vault highest temperature groups; and selecting the fire source distance corresponding to the second vault highest temperature group with the minimum standard deviation as a predicted fire source distance, and calibrating the position of an unknown fire source. According to the technical scheme, the fire spreading condition can be judged under the condition of only depending on the temperature sensor, so that the possible risk of the fire point and the spreading direction of the fire point are determined, and powerful support is provided for subsequent fire extinguishing operation.

The invention discloses a fire extinguishing agent for a microgravity environment, a preparation method and a control method, the fire extinguishing agent is a three-stage composite system of a magnetic core, a CO2 phase change shell and a siloxane matrix, the magnetic core is used for moving the fire extinguishing agent, and the fire extinguishing agent is guided to a fire source in a controllable gradient magnetic field; the CO2 phase change shell can release supercritical CO2 at a specified point, the temperature of a fire source is reduced to be lower than the ignition point at the speed of 25 DEG C / s through phase change heat absorption, the rapid fire extinguishing effect is achieved, further, when the temperature of a siloxane matrix serving as a framework is larger than or equal to 300 DEG C, dehydration condensation reaction occurs, silicon dioxide nano-particles with the particle size being 5-10 nm are generated, the silicon dioxide nano-particles are naturally assembled to form the porous aerogel, and the porous aerogel is prepared. According to the invention, efficient scattering of heat radiation is realized, a heat insulation barrier with a thickness of 50-150 [mu] m is formed, contact between the heat radiation and oxygen is blocked, and finally, an integrated function of magnetic control guiding, temperature response release and heat insulation film forming is realized through collaborative design of functional components.

The application provides a fire point automatic identification method of an intelligent charging station, comprising: grouping each section according to thermal radiation intensity and measured thickness of a smoke layer, identifying an abnormal area of accumulated thickness of a vortex stagnation of a beam recess in each section; obtaining smoke layer deposition thickness distribution data, classifying thermal radiation intensity attenuation of the beam recess position according to the smoke layer deposition thickness distribution data, generating an attenuation distribution diagram, and identifying a potential fire point shielding area in a smoke exhaust path; according to the potential fire point shielding area, extracting a beam recess smoke layer shielding rate with a longer stagnation time from the smoke layer thickness distribution diagram, rechecking the smoke layer shielding rate in combination with the vortex stagnation time of the beam recess and the beam recess spacing, obtaining a rechecked thermal radiation intensity distribution sequence; and according to the rechecked thermal radiation intensity distribution sequence, iteratively updating thermal radiation attenuation characteristics along the slope under the influence of the ceiling slope angle, and determining a real fire point position coordinate under the smoke layer shielding.

The embodiment of the invention discloses a spraying fire extinguishing method and device, electronic equipment and a storage medium. The spraying fire extinguishing method comprises the steps that a real-time video of a target area is collected; performing smoke and fire identification on the real-time video based on a preset smoke and fire identification algorithm; when the real-time video is identified to have a smoke point or a fire point, sending the real-time video to an authorization platform; when fire alarm confirmation operation of the authorization platform for the real-time video is received, a control instruction is sent to a fire-fighting spraying system corresponding to the target area so as to control the fire-fighting spraying system to start a spraying head to extinguish fire in the target area, and the scheme can improve the fire extinguishing efficiency.

The utility model discloses a self-flame-retardant efficient fire-extinguishing adhesive tape sheet which comprises a flame-retardant adhesive tape sheet, a fire-extinguishing layer and a flame-retardant protective layer which are sequentially arranged from the bottom layer to the surface layer, flame-retardant materials are arranged in each layer structure, and the flame-retardant grade of the fire-extinguishing adhesive tape sheet is remarkably improved, so that each part of the fire-extinguishing adhesive tape sheet can be prevented from spontaneous combustion when a fire disaster occurs; and a flame-retardant effect can also be achieved. Wherein perfluorohexanone microbeads in the fire extinguishing layer are densely distributed in flame-retardant filling adhesive cement, after high-temperature wall breaking, gas rushes out along a crevasse and rapidly reaches a fire point, the effect of rapid fire extinguishing is achieved, the density of the perfluorohexanone microbeads is close to a saturated state, and the fire extinguishing efficiency is further improved.

The invention provides a magnesium alloy ignition point coupling judgment method and system under a flame condition, and belongs to the technical field of material performance testing. The method comprises the following steps: heating a magnesium alloy sample under a flame heating condition; driving a temperature measuring probe to penetrate into the sample at a preset moment so as to penetrate through a surface oxidation film of the sample, and obtaining the real temperature of the melt in the sample; and performing space-time coupling matching on the change of the real temperature and the visual information of the sample state so as to determine the ignition point of the magnesium alloy. The invention also provides a system for realizing the method. The system comprises a flame heating unit, a dynamic temperature measurement unit and a signal acquisition and judgment unit. The real temperature of the melt is obtained by dynamically puncturing the oxide film, so that the problem of temperature measurement distortion caused by heat insulation of the oxide film is fundamentally solved; and in combination with a time-space coupling judgment criterion of temperature jump and combustion expansion behaviors, dual confirmation of the ignition point is realized, interference is effectively eliminated, and accuracy, reliability and repeatability of ignition point data are ensured.

The invention relates to the field of photovoltaic fire monitoring, and discloses a roof distributed photovoltaic power generation fire monitoring and early warning method, which comprises the following steps: acquiring infrared radiation data in each monitoring area in real time through a thermal imaging camera deployed in the monitoring area, identifying an abnormal thermal event in the monitoring area, and sending the abnormal thermal event to the monitoring area; generating an equipment fault warning signal and a suspected fire point mark, controlling a thermal imaging camera to perform fire point positioning scanning on a corresponding area through a holder, and then performing ignition point judgment; according to the invention, by dividing the monitoring area and setting dual criteria of the temperature threshold and the fire source feature, the system executes two sets of analysis logics of equipment fault early warning and fire detection in parallel, and when the temperature of the monitoring area exceeds the heat-resistant threshold of the equipment, fault warning is triggered; and when a high-temperature area conforming to the morphological characteristics of the fire source appears in the thermal image, the high-temperature area is marked as a suspected fire point, so that the labor division mechanism not only ensures the sensitive perception of local faults of the component, but also reduces the false alarm rate of ambient temperature fluctuation.

The invention relates to a dry cleaning medium and application thereof, the dry cleaning medium comprises an alcohol ether compound and water, the flash point of the dry cleaning medium is 300 DEG C or above, and the ignition point of the dry cleaning medium is 1000 DEG C or above. The dry cleaning medium provided by the invention is relatively high in flash point and ignition point, has the advantage of flame retardancy, is safe and risk-free, does not cause fabric shrinkage when being used for cleaning easily-shrunk fabrics, has an excellent stain removal rate, and has an excellent removal effect on both oil-soluble stains and water-soluble stains.

The utility model discloses a movable fire extinguishing device which comprises a track hung on a ceiling, a moving mechanism connected with the track and a fire extinguisher arranged below the moving mechanism, and a fixing mechanism is arranged between the fire extinguisher and the moving mechanism. By arranging the moving mechanism, the fixed seat can move back and forth along the track under the driving of the motor, so that the position of the fire extinguisher is adjusted, the effect of electric control adjustment is achieved, a worker can climb to a high place without the help of a ladder, and the fire extinguisher can be rapidly moved to the position above a fire point when a fire breaks out suddenly. And the operation is more convenient and flexible. And in addition, by arranging a fixing mechanism, the effect of hoisting and falling prevention is achieved, the installation stability is improved, and the risk that the fire extinguisher falls off is reduced.

The utility model provides an automatic fire-fighting device for a wind power fan, which comprises a fan motor and a temperature monitoring module, the temperature monitoring module is mounted on the surface of the fan motor, the output end of the temperature monitoring module is unidirectionally connected with a host, the output end of the host is unidirectionally connected with a water valve, and the water valve is mounted on a water supply pipe passage. The water mist spraying device has the advantages that water mist is sprayed towards a fire point or the root of a flame, and the conical water mist is wide in coverage area and can go deep into a fire source to quickly reduce the temperature of the fire point and restrain fire spreading. And meanwhile, the carbon dioxide jet head jets linear carbon dioxide airflow to surround the fan motor to form an effective isolation barrier to prevent external oxygen from entering the fire scene, so that a combustion chain is cut off, and continuous combustion of a fire point is prevented. And external oxygen is effectively isolated to prevent continuous combustion of a fire point, so that fire extinguishing of the fire point of the motor is well and quickly realized.