507 results about "Fire point" patented technology

The invention relates to a fire monitoring and warning method on the basis of an unmanned aerial vehicle. The fire monitoring and warning method comprises the following steps: utilizing the unmanned aerial vehicle carrying a digital camera and a GPS (Global Position System) receiver to circularly monitor and shoot images, recording the shot images as well as a GPS position and a shooting gesture at a shooting moment, and sending back to a ground station in real time; scanning the received images by the ground station, identifying a potential fire point (grid) and a fired fire point (grid), and obtaining an accurate fire scene position and a scope; calculating boundaries and a gravity center of a plurality of fire scene scopes at adjacent moments by the ground station on the basis of continuously shot aerial photos, thereby obtaining a point farthest away from the gravity center of the fire scenes, namely, obtaining a fire starting point; and analyzing the change in the position of the fire starting point, so as to judge the fire extending direction and calculate the fire extending speed and acceleration. The fire monitoring and warning method has the advantages that the demand on image processing capacity of a carried device on the unmanned aerial vehicle is low, the load of the unmanned aerial vehicle is light, the continuous flying polling time is long, the risk in losing or damaging the device is low, the fire extending direction is automatically extracted, the fire extending speed and acceleration are automatically calculated, and the practical applicability is strong.

The invention provides an inter-class variance MODIS forest fire point detection method, which comprises the following steps: pretreating original data required from an MODIS satellite receiving station, acquiring brightness temperature or reflectivity of each channel, and excluding illegal data; identifying image elements of cloud and water; identifying a smog mask; extracting potential fire points from excluded image elements of the cloud, the water and the illegal data; calculating inter-class variance yield of each potential fire point and effective background image elements in a background window; verifying fire points according to the threshold value of the inter-class variance and the smog mask; and outputting an MODIS image containing the fire points. By adopting lower threshold value, the potential fire points comprise true fire points as well as comprise certain false fire points of which the underlying surfaces have higher temperature so as to avoid omission; the threshold value of the inter-class variance is adopted to judge and remove the false fire points so as to prevent from being misjudged; moreover, information of the underlying surfaces around the fire points is considered fully, so that the method can adapt to different areas and seasons.

The invention discloses a stationary satellite-based fire remote sensing and monitoring method which solves the problem of automatic extraction of fire points in a forest and grassland, monitoring of a fire spreading situation and estimation of fire loss based on a stationary satellite. The method comprises the following steps: acquiring stationary satellite data, and calculating brightness temperature of image elements; judging latent fire point image elements from non-cloud and non-flare image elements in land image elements by using a method of a brightness temperature threshold value, and performing statistical judgment on the fire point image elements according to wave band information of background window image elements; culling out all-year-round high-temperature fire points based on a fixed fire point library and land utilization type data, and extracting positions and brightness temperatures of forest fire and grassland fire; providing a fire spreading situation sequence according to forest fire and grassland fire remote sensing and monitoring results of observation frequencies of the stationary satellite; estimating the loss caused by the forest fire or the grassland fire. The method disclosed by the invention quickly monitors a dynamic change of a disaster target, so that the efficiency for prewarning and emergently handling major disasters in China is further improved.

The invention relates to a fire monitoring method, in particular to a visible light-thermal infrared based multispectral multi-scale forest fire monitoring method which utilizes the advantages of a large-scale satellite remote sensing monitoring means and a small-scale near ground monitoring means to invent a novel monitoring method through reasonable configuration and mutual coordination of the two means. In the invention, the spectral features as well as picture pattern and textural features of forest fire points are researched, the forest fire recognition algorithms of visible light images and thermal infrared images are organically combined, and the interference and the like on forest combustion smoke and open fire recognition, which are caused by the cloud, fog, lamplight, red substances and the like of a forest district, are eliminated, so that the visible light-thermal infrared based multispectral multi-scale forest fire monitoring method by which various factor interferences can be eliminated is invented, thus a fire alarm automatic recognition function can be achieved, the manpower cost for 24-hour manual monitoring can be greatly lowered, and the accuracy of forest fire monitoring can be effectively improved.

The invention discloses a novel temperature control moxibustion device which comprises a cylindrical moxibustion box and a box cover, wherein a moxibustion hole is formed in the bottom of the moxibustion box, and a detachable dust stop screen is arranged on the moxibustion hole. The temperature control moxibustion device further comprises a support frame and a temperature sensor, the support frame is fixed in the moxibustion box, and the temperature sensor is fixed on the bottom surface of the moxibustion box; a screw rod perpendicular to the bottom surface of the moxibustion box is arranged at the lower part of the support frame, a nut seat is in bolted connection with the screw rod, and a fixing ring corresponding to the moxibustion hole is fixed on one side of the nut seat and used for inserting moxa sticks; and the screw rod is driven by a reducing motor fixed on the support frame to rotate. According to the novel temperature control moxibustion device, the therapeutic temperature is regulated by controlling a distance between a moxa stick fire point and a moxibustion acupuncture point, the constant temperature of the moxibustion acupuncture point of a human body is maintained, and the whole device is portable and flexible, so that the temperature of the moxibustion acupuncture point of the human body can be accurately controlled, and an optimal curative effect is achieved.

The invention discloses a satellite-monitoring-based fire alarming method for a mountain power transmission line. The method comprises the following steps of: (1) acquiring the real-time data of an alarming mountain; (2) identifying a fire point; (3) establishing a power grid integrated geographic information platform; (4) positioning the fire point; (5) giving an alarm for a fire according to the ground characteristics of the fire point; and (6) making a decision about whether to publish the fire alarm or not. The step (5) specifically comprises the following steps of: (5.1) analyzing a distance between the fire point and the power transmission line; (5.2) analyzing the two ground climatic conditions of wind speed and wind direction; (5.3) analyzing a ground slope and a ground aspect; and (5.4) analyzing a ground vegetation condition. By the method, 1, information about the alarm for a mountain fire in the vicinity of the power transmission line can be timely published, so that the loss of lives and properties of the people can be reduced; 2, the method is high in feasibility and operability; 3, the method is high in alarming reliability; and 4, the method plays an important role in the maintenance of safe and stable running of a power grid.

The invention provides environment-friendly insulating oil which takes vegetable oil as the raw material, and has high flash point and anti-oxidation stability, consists essentially of triglyceride and antioxidant, and also contains a metal deactivator in the further technical proposal. The environment-friendly insulating oil is prepared by refinement by taking vegetable oil as the raw material, does not contain toxic substances, dose not cause damage to environment and human body, and can be rapidly and thoroughly biodegraded, is environment-friendly insulating liquid, and can be applied in places with requirement of high fireproof performance as the flash point and the fire point thereof are both higher than 300 DEG C; the risk of fire and explosion is far lower than that of the traditional transformer oil; and all other performance indexes fully conform to the national standard GB 2536-90 of mineral transformer oil.

An embodiment of the invention discloses a double-spectrum forest fire disaster monitoring method and a double-spectrum forest fire disaster monitoring device based on an infrared-visible light image. The double-spectrum forest fire disaster monitoring method comprises the steps of acquiring an infrared image and a visible light image of a current scene; determining a suspected fire point mark area in the infrared image; mapping the suspected fire point mark area to a corresponding position in the visible light image, and obtaining an interested area in the visible light image; verifying an image in the interested area, and determining whether a real fire point exists in the current scene according to a verification result. According to the double-spectrum forest fire disaster monitoring method and the double-spectrum forest fire disaster monitoring device, advantages in infrared image identification and advantages in visible light image identification are combined, and an interference caused by objects which have appearances similar with flame and radiation energy that is different from that of the flame to determination result can be prevented, thereby improving accuracy. Furthermore only the image in the interested area in the visible light image is verified, thereby reducing calculation amount, improving efficiency and ensuring high real-time performance in fire disaster monitoring.

The invention discloses a system and a method for linkage of an electric power tunnel inspection robot and a fire extinguishing system. The method includes: a control platform sends fire disaster signals to the robot and controls fireproof doors to close after detecting a fire disaster in a tunnel; after receiving the signals, the robot moves towards the fire disaster, controls the corresponding fireproof door to open and closes the fireproof door after passing through; the robot verifies the fire disaster and calculates the distance between a fire origin and the robot after reaching a highest-temperature zone; the robot aims at a target in the fire zone and controls nozzles to release fire extinguishing materials to the target; fire extinguishment is finally realized by linkage control of the control platform, the fireproof doors and the robot. The robot is capable of freely passing through fire compartments of the electric power tunnel, once the fire disaster is detected, all of the fireproof doors are closed in a linkage manner, the robot quickly arrives at the fire point to check fire conditions, and firefighting steering engines are directly adopted for aiming at fixed points to extinguish fire. The system and the method for linkage of the electric power tunnel inspection robot and the fire extinguishing system have the advantages of quickness in reaction, information accuracy and flexibility, and accident risks can be greatly reduced to guarantee tunnel environmental safety.

The invention relates to a monocular vision technique based fire monitor control method for adjusting relative positions of a fire point and a water-drop point, which belongs to the technical field of fire monitoring and self-extinguishing. By using a method for controlling a pitching angle and a horizontal angle for a plurality of times respectively in sequence, the fire monitor control method solves the problem of adjusting the relative positions of the fire point and the water-drop point in a three-dimensional space by using a two-dimensional image so that the water-drop point of the fire monitor can track the changes of the position of the fire point in real time so as to provide a condition for the self-extinguishing in a large space.

The invention discloses a comprehensive application method for integrating forest fire danger forecasting and ground fire point monitoring. The comprehensive application method for integrating the forest fire danger forecasting and the ground fire point monitoring comprises the steps that a forest fire danger class forecasting model is established; forest fire weather indexes are obtained by calculating; the forest fire weather index are divided to obtain forest fire danger classes; a satellite receiving system is adopted to receive polar orbit satellite data and pre-processes the polar orbit satellite data; on the basis of an MODIS fire disaster algorithm, a multiband brightness temperature value and a multiband reflectance value of the MODIS data are used for identifying an image; on the basis of a GIS technique, a forest fire danger class forecasting result and a ground fire point monitoring result are superimposed on an electrified wire netting output line and device and display a range of influence of a fire scene which can be intuitive analyzed. The comprehensive application method for integrating forest fire danger forecasting and ground fire point monitoring combines the forest fire danger class forecasting result and the ground fire point monitoring result with the electrified wire netting output line and device, the disposition efficiency of a forest fire accident is improved, and the monitoring range is wide.

The invention provides a transmission line mountain fire spread warning method with the combination of public network weather. The method comprises a step of obtaining a fire point coordinate, a step of calculating the spread speed of a fire point spread direction based on the fire point coordinate, a step of calculating the linear position of the fire point in the spread direction after a spread time according to the spread speed, and obtaining a spread coordinate, a step of calculating the spread area of the fire point according to the spread coordinate, a step of carrying out warning level definition on the transmission line in the spread area according to the spread time and issuing warning. According to the method, an effective information support is provided for the judgment of a grid mountain fire disaster by a power department, the mountain fire spread speed from the fire point to the transmission line can be calculated, the warning level of the transmission line is judged through time according to the mountain fire spread speed, and the method has high accuracy and practicability and plays an important role in maintaining security and stability of a grid and reducing a disaster loss.

The invention discloses a forest fire identification method and a forest fire identification system. The forest fire identification method comprises the steps of analyzing forest zone monitoring images, extracting image features, judging whether the image features conform to features of fire behaviors, and judging that suspected fire points exist if the image features conform to the features of the fire behaviors so that the purpose of identifying forest fire is achieved. Moreover, alarm can be conducted. Monitoring personnel can visually identify images of suspected fire points so as to confirm whether forest fires occur. The method and the system have the forest fire automatic identification function, can automatically alarm the fire behaviors, combines a geographic information system (GIS) to accurately locate the fire points, form images clearly, avoid limitation of original manual observing fire behaviors, realize forest zone management digitization and signification, greatly reduce expenditure and management cost of forestry sectors, and improve efficiency of enterprises in forest areas.

The invention relates to a high-rise building external wall suspension type remote control fire distinguishing device and a high-rise building external wall suspension type remote control fire distinguishing method. A ring is embedded in an external wall of a building in advance, a remote control opened rope storing pulley box is suspended on the ring; and when a fire happens, the remote control opened rope storing pulley box drags and lifts a bearing wire rope, a remote control fire-fighting lance and a fire hose to the upper side of a fire point, the lance is clamped, and a pump in a groundwater tender is opened to supply water and directly spray the water to the fire point to extinguish the fire. The invention has the advantages that: the device is quick and convenient to use and reliable in performance, and replace a water tower fire truck, a straight arm and scaling ladder truck and a curved arm and scaling ladder truck for extinguishing the fire, can greatly save investment of fire fighting apparatus, and can ensure the safety of fire fighters.

The invention automatic fire artillery and its control method, is composed by the artillery body and the control system, its characteristic is the system is composed by the water supply installment, the flame picture locator, the decoding as well as the computer; The computer control artillery body movement, accepts the fire alarm through the hypothesis procedure, gains the artillery body position and the flame picture information through the angle potentiometer and the flame picture locator, promptly adjusts the artillery body position and the nozzle angle, after aims the artillery body nozzle at the flame surface vanguard, automatically turns on the water pump and the motorized valve,sprays water to the fire point,fights the fire, until the flame extinguishes, this road alarm has already eliminated.The invention automatic fire artillery can linkage with the fire prevention alarm system,the computer automatic control fire prevention artillery to carry on the flame recognition in spatial scope of the hypothesis monitoring, the flame space localization and automatically open the valve spraying of water, suppresses the flame, specially suits to the big space and nobody value defends the situation the fire safe monitoring and save goal, may raise the automated level of the early fire saves goal.

The invention discloses an electric transmission line fire spreading predicating method and system based on a grid flow. The method includes the steps that firstly, fire point collecting equipment is used for obtaining fire point information; a GIS image of an affected zone is divided into a grid image, so that a grid terrain of the affected zone is obtained, the ground feature category of each grid is identified, grid-crossing fire spreading intensity is calculated under different meteorological conditions, and a fire spreading weighing grid chart of the affected zone is constructed; a fire spreading route from sources to sinks is searched for in the fire spreading weighing grid chart of the affected zone to establish a fire behavior spreading model, and coordinates of an affected pole tower, the zone area of spreading and the time for fire spreading to the pole tower are calculated; finally, corresponding alarms are given to different influence grades of fire spreading predicated according to the grid flow method. The electric transmission line fire spreading predicating method and system based on the grid flow have the advantages that the time for fire point spreading to an electric transmission line zone and fire behavior intensity can be rapidly calculated, fire behaviors are informed in time, and early warning is high in accuracy.

The embodiment of the invention provides an autonomous fire fighting robot device. The autonomous fire fighting robot device comprises a robot industrial control integrated machine, a wireless receiving module used for receiving fire point alarming information and monitoring node coordinate information sent by the outside world, a space positioning module composed of a UWB wireless positioning system, comprising a wireless positioning base station and a wireless positioning node, and used for absolute positioning of space coordinates of a robot, a driving unit module used for providing drivingfor robot chassis power wheels and controlling the robot power wheels to rotate in various directions, and a fire extinguisher control module used for controlling an electric pushing rod placed outside a robot body to open a fire extinguisher carried by the robot to be aligned with a fire source to perform fire extinguishing, wherein the wireless receiving module, the space positioning module, the driving unit module and the fire extinguisher control module are controlled by the industrial control integrated machine. The fire fighting robot device can determine an optimal path for the robot to reach an area nearby a monitoring node according to the received fire extinguishing point coordinate information, and it is achieved that the robot autonomously travels to a fire extinguishing pointto perform fire extinguishing.

An explode welding repairing method which is hard to dilute metal compound board, firstly, the thickness of hard-diluting metal board is larger than the original board material by 0.5 to 1mm, the area of board material is larger than a defect zone by 20 to 60 mm2; secondly, proceed fine polishing to the compound board at the position under epair; thirdly, put rare metals on the surface under epair, the compound board under epair is made as the lower layer of base board; fourthly, the rare metal board and a placode under epair, the enlarged supporting gas between the two boards adopts edge supporting, the gap is of 7 to 10mm and laid in parallel; fifthly, the rare metal board surface after protecting is distributed with explode evenly, the protecting layer uses lubricate resin adding thinner, the thickness of the protecting layer equals to 0.5 to 1mm; sixthly, the size of the fire point is controlled below the diameter of 15mm; seventhly, after exploding compound, the invention is level to the main material after heat process, flattening and repairing and abrasion of the connection edge.

The invention discloses coal dust combustion improver for cement kilns, which comprises the following components by weight percentage: 50-80% of manganese ore, 10-40% of chemical activator, 5%-15% of clinker sintering agent, and less than 2% of moisture content. The coal dust combustion improver for cement kilns of the invention has the effects of promoting concentrated combustion of coal powder and improving the strength of clinks, and the combustion-supporting mechanism of the coal dust combustion improver is as follows: by combustion-supporting components, the fire point of coal powder is decreased, the melting point of coal powder ash is increased, and combustion atmosphere is regulated at high temperature, thereby achieving the purpose of utilizing fault coal fully in the process of cement burning and the purposes of promoting the sintering reaction of clinkers and improving the strength of clinkers by adding combustion improver components of cement clinkers.

The invention provides a GIS (Geographic Information System) platform-based method for drawing a distribution map of mountain fire points of a power grid electric transmission line. The method comprises the following steps of (1) setting up a GIS platform; (2) collecting the fire point data of regions at which power grid electric transmission line mountain fire points to be drawn are located; (3) carrying out periodical subsection statistic and periodical classified statistic; (4) carrying out interference noisy point correction; (5) carrying out spatial interpolation; and (6) correcting the distribution map of the mountain fire points of the electric transmission line. The method has advantages that (1) the distribution map of the mountain fire points of the power grid electric transmission line can be conveniently selected by each region for use; (2) the practicability of the distribution map of the mountain fire points of the power grid electric transmission line is improved; (3) a method for correcting the distribution map of the mountain fire points of the power grid electric transmission line is defined; (4) the prevention and reduction of disasters of a power system are facilitated; (5) the influence on grade classification of degree of severity of the mountain fire points of the power grid electric transmission line caused by interference noisy points is facilitated to be judged.

The invention discloses a prediction method for a power transmission line mountain fire caused by multiple factors. The prediction method comprises the steps that (1) a grid is divided into prediction regions; (2) historical fire point density A is calculated; (3) current fire point density B is calculated; (4) the rainfall index C in every day of the following three to seven days is calculated; (5) the historical rainfall index D is calculated; (6) the high-frequency period E of industrial and agricultural fires is found out; (7) the ground surface vegetation index F is calculated; (8) mountain fire prediction density X is calculated. By means of the prediction method, mountain fire occurrences in the following three to seven days can be predicted; the operability is high; the accuracy rate of forecasting is high, quantitative prediction is realized, and the power transmission line mountain fire prevention work can be effectively guided; according to a prediction conclusion, a corresponding emergency scheme can be made in time, the mountain fire can be handled in advance, and loss caused by the mountain fire to places nearby a power transmission line is reduced.

The invention discloses an electric transmission line wildfire warning method which comprises the steps of (1) collecting tower geography basis data; (2) obtaining fire point relief areas through division; (3) searching for a tower near the fire point; (4) judging the electric transmission line where the tower near the fire point is located; (5) judging whether a channel is unblocked, coming to the end if the channel is blocked, and continuing to conduct the next step if the channel is unblocked; (6) calculating the distance between the fire point and the electric transmission line where the tower near the fire point is located; (7) calculating a warning message and releasing the warning message according to rules D-F. The method has the advantages of being high in calculation speed, high in efficiency, and capable of avoiding the searching for extraterritorial towers, conducting warning calculation on multiple fire points at the same time, improving warning accuracy, better conforming to the reality, and avoiding repeated warning on multiple towers of the same electric transmission line.

The embodiment of the invention discloses a control method and system for the forest fire exploration through an unmanned plane. The method comprises the steps: obtaining a fusion image and the brightness temperature values of all pixels in the fusion image through the preprocessing, splicing and fusion and brightness temperature inversion of a visible image, a short-wave infrared image, a mid-wave infrared image and a long-wave infrared image; recognizing the position of an open fire point and the position of a blind fire point according to the fusion image and the brightness temperature values of all pixels in the fusion image; finally analyzing the influence scope of forest fire and the distance between the center of the forest fire and a power transmission line according to the positions of the fire points, determining the level of forest fire, and carrying out the early warning according to the level of forest fire. Compared with the prior art, the method can effectively distinguish the open fire point and the blind fire point, can carry out the early warning timely according to the level of forest fire, can effectively improve the detection rate of the forest fire and the put-out success rate of the forest fire, reduces the safety risk of fire fighters, and guarantees the safe and reliable operation of power transmission lines.

An unmanned aerial vehicle device and a method for monitoring a fire point of a coal gangue mountain. The UAV device includes a flight control unit, a ground base station, a UAV carrier, a UAV-mountedinfrared thermal-imaging module, a UAV-mounted visible light camera module, a fire hazard recognition software module, a synchronous trigger software module, an image processing module, an image transmission software module, a data storage module, a positioning module, a battery, and a wireless communication module. The UAV device can overcome defects in single technology. The device can gradually shrink a range from large to small and accurately determines the center and temperature value of a fire point, thus supplying an evidence for fire extinguishing work. The device has important significance in the field of monitoring fire point of the coal gangue mountain and has excellent commercial prospect.

The invention provides a satellite remote sensing monitoring method and a processing device for straw burning fire points in one embodiment and aims at solving the problems of high difficult of manual burning control and failure in guaranteeing the control efficiency and the control accuracy in the prior art. The method comprises the following steps: the processing device obtains the satellite remote sensing data of a region to be monitored obtained by a remote sensing monitoring device; for each pixel in the satellite remote sensing data, whether the brightness temperature value of the pixel is located within a preset fire point brightness temperature range is judged, and if so, the pixel is marked as the burning fire point; all the pixels marked as the burning fire points are marked in the region to be monitored, and the position information and attribute report form of the burning fire points in the region to be monitored are obtained statistically. The method is capable of remarkably improving the fire point monitoring efficiency and the monitoring accuracy, convenient to implement, and easy to popularize and apply.