CN118014311A - Intelligent duty auxiliary management system and method for control room based on data analysis - Google Patents
Intelligent duty auxiliary management system and method for control room based on data analysis Download PDFInfo
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Abstract
The invention discloses a data analysis-based intelligent on-duty auxiliary management system and method for a fire control room, and belongs to the technical field of fire safety. The system comprises a data acquisition module, a fire analysis module, a fire rescue module and a visualization module; the data acquisition module is used for acquiring chart information, picture information and material information of the warehouse area; the fire analysis module judges whether the warehouse generates fire or not and informs an attendant according to the picture information, finds the burning material according to the chart information and the material information and analyzes the spreading route and spreading speed of the fire; the fire rescue module calculates a danger index according to the spreading speed of fire, judges whether to alarm or not, selects evacuation or rescue, calculates a priority index of each combustion material respectively, and plans rescue routes for different combustion materials in sequence; the visual module displays the evacuation information or the rescue route through a large screen of the fire control room, and assists personnel to develop work in the form of projecting the rescue route on the ground of the warehouse through a fire-fighting projection lamp.
Description
Technical Field
The invention relates to the technical field of fire safety, in particular to a system and a method for intelligent duty auxiliary management of a fire control room based on data analysis.
Background
The fire control room is a fire control command and control center and is responsible for monitoring fire alarm, command and dispatch fire control team and other works. As the urban process increases and the building complexity increases, the risk of fire increases, and thus the emergency disposal efficiency and the degree of intellectualization of the fire control room need to be improved.
At present, the fire control room is usually used as a fire early warning and command dispatching place, the fire condition is found through the sensor and early warning is carried out to the large screen of the fire control room, and the attendant makes decisions and plans on the corresponding scheme according to experience and regulation. This approach has certain drawbacks, such as: 1. limited by the personal experience of the person on duty, reasonable response schemes cannot be quickly given when a fire occurs, and unreasonable schemes tend to easily cause property loss and even casualties. 2. Limited by the regulatory restrictions of the notch plate, mechanical countermeasures are often adopted to deal with fire changing in real time, and flexibility is lacking. 3. When rescue work is carried out, a nearby principle is often adopted, and the light and heavy urgency of different rescue works cannot be rapidly distinguished according to the change of fire trend. Therefore, a more efficient and intelligent fire emergency treatment scheme is needed at present to solve the problems.
Disclosure of Invention
The invention aims to provide a system and a method for auxiliary management of intelligent duty of a control room based on data analysis, which are used for solving the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a method for assisting management of intelligent duty of a control room based on data analysis comprises the following steps:
s100, collecting a material stacking distribution diagram and a fire evacuation schematic diagram of a warehouse area, and image information and material information in the warehouse, judging whether the warehouse generates fire or not and notifying an operator on duty by analyzing the image information.
And S200, finding the burning materials through image information when a fire occurs, analyzing the spreading route and spreading speed of the fire according to the material information and referring to a material stacking area diagram, and establishing a fire spreading model according to the material information.
S300, calculating a danger index of the fire condition, judging whether to alarm or not according to the danger index, dividing a rescue area according to the stacking position of the burning materials, and analyzing whether the rescue area is safe or not according to a fire evacuation schematic diagram so as to select evacuation or rescue.
And S400, informing people to leave the warehouse area after evacuation, planning a rescue route for each burning material in sequence by rescue, monitoring the rescue area in real time to ensure timely evacuation, and assisting the people to carry out work in a mode of projecting the rescue route.
In S100, the material stacking profile refers to stacking positions of different kinds of materials in the warehouse, and the same kind of materials are stacked in a concentrated manner. The image information refers to a live-action picture and a thermal imaging picture in the warehouse, and the live-action picture and the thermal imaging picture are acquired in real time through a thermal imager arranged above the warehouse. The material information refers to the combustion characteristics of different materials, including combustion propagation speed, ignition point, combustion temperature and combustion influence distance, wherein the combustion propagation speed refers to the speed of flame propagation along the surface of the materials in the combustion process, the ignition point refers to the lowest temperature of the materials for starting combustion, the combustion temperature refers to the average value of the temperature interval of the materials in the combustion process, and the combustion influence distance refers to the farthest distance of the temperature interval of the materials in the combustion process. Judging whether the temperatures of different positions in the thermal imaging picture are greater than or equal to a temperature threshold value in real timeAnd if the result is that the fire is not treated, informing the personnel on duty in the fire control room of the fire if the result is that the fire is not treated.
Different kinds of materials have different combustion influence distances due to different densities, temperatures and flame sizes during combustion. When other materials are in the combustion influence distance of the burning materials and the ignition point is lower than the combustion temperature of the burning materials, the materials can be ignited.
The thermal imaging camera can shoot the whole warehouse picture for a single camera, can shoot pictures at different positions of the warehouse for a plurality of cameras respectively, and finally splice and summarize during data processing.
Informing a staff on duty in a control room when a fire condition occurs, wherein the informing mode comprises the steps of synchronously forwarding a live-action picture with the temperature higher than a temperature threshold value position to a large screen of the control room, and carrying out acousto-optic prompt through a vibration bracelet and an intelligent terminal of the staff on duty. The operator confirms whether the fire is misreported or not, and the fire information is continuously analyzed under the condition of non-misreporting.
In S200, the specific steps are as follows:
S201, dividing that the temperature is higher than a temperature threshold value from the thermal imaging picture And (3) taking the region of the material stacking position as a temperature influence region, searching materials with stacking positions in the temperature influence region in a material stacking distribution diagram, comparing the temperature of the material stacking position with the ignition point of the materials, and defining the state of the materials as combustion when the temperature of the material stacking position is greater than or equal to the ignition point of the materials.
S202, taking the material in the combustion state as a combustion starting point, and acquiring the combustion temperature of the combustion starting pointAnd combustion influence distance/>Will be less than or equal to/>, from the starting point of combustionAnd an ignition point of less than or equal to/>Is used as a combustion node. And then acquiring the combustion temperature/>, of the combustion nodeAnd combustion influence distance/>Will be less than or equal to/>, from the combustion nodeAnd an ignition point of less than or equal to/>As the next combustion node. And so on until there is no next combustion node satisfying the condition as the combustion end point.
S203, the combustion starting point, the combustion node and the combustion terminal point are sequentially connected to serve as a spreading route, and the propagation direction from the combustion starting point to the combustion terminal point serves as the spreading route. The combustion propagation speeds of the materials corresponding to the combustion starting point, the combustion node and the combustion end point are respectively used as different propagation speeds under the corresponding propagation routes; and building a fire spreading model according to the spreading route and the spreading speed.
In the case of non-uniform material stacking area and shape, the spreading speed should take the shortest path from the nearest position of the material to the last burning point to the nearest position to the next burning point as the burning spreading direction, and the shortest path is divided by the burning spreading speed to obtain the burning spreading time, and the positions of fire spreading at different times are analyzed according to the burning spreading time of various materials.
Because of the instability of combustion, multiple combustion starting points may exist at the same time, each spreading route may be divided into multiple spreading routes due to branching phenomenon, and each material in the same spreading route has different combustion propagation speeds.
In S300, the specific steps are as follows:
S301, obtaining the current time Setting a set of predicted durations/>Substituting into a fire spreading model, and analyzing to obtain the current time/>Start/>The time state is the type number/>, of the materials burnedSubstituting formula to calculate hazard index/>, of fireWhen the risk index is larger than the index threshold, the system automatically alarms to the fire department, and the formula is as follows:
。
Predicting duration The values of the interval, the minimum time and the maximum time are preset by staff in order to achieve equal interval time from small to large. The interval value is defined by referring to the normal fire development speed, and the minimum time length and the maximum time length value are set by referring to the time length required for on-site rescue and the time length required for the fire department to rescue in a driving way.
The index threshold is also preset by a worker, and the value refers to the speed of fire development in a real scene. When the danger index is smaller than or equal to the index threshold, the fire condition is slow to develop, and even a self-limiting phenomenon that the combustible material is about to burn out occurs. The rescue can be carried out by oneself under the condition, and the fire department is not required to rescue.
S302, after the person on duty confirms the fire, recording the receiving timeAnalysis and labeling of/>, using a fire spread modelThe state is the burning material. Setting the normal temperature/>Obtaining the combustion temperature/>, of each marking materialWill/>And (3) withThe temperature decay distance of each marker material is calculated by substituting the temperature decay distances into the air heat conduction equation together.
S303, taking the central coordinate of the stacking position of each marking material as the center of a circle, and taking the corresponding temperature attenuation distance as the radius to divide a circular area as a temperature coverage area. And (3) subtracting the temperature coverage areas of all the marking materials from the warehouse area to obtain a rescue area, judging whether the rescue area comprises at least one safety exit or not according to a fire evacuation schematic diagram, and judging whether the ratio of the area of the rescue area to the area of the warehouse area is greater than a safety ratio threshold value, if so, carrying out rescue planning, and otherwise, carrying out evacuation planning.
The safety exit is used to ensure that personnel can evacuate the warehouse area at any time. The safety ratio threshold is preset by staff, and the specific value refers to the air flow and the personal safety under the condition of different rescue area ratios.
In S400, the specific steps are as follows:
S401, notifying a control room attendant to leave the warehouse area when the evacuation planning is carried out. When rescue planning is carried out, a rescue route is planned and projected onto the ground of a warehouse, and personnel carry out rescue work according to the rescue route projected on the ground, wherein the rescue route planning steps are as follows:
S401-1, analyzing the spreading route of each marked material, and sequentially acquiring the combustion propagation speed of the marked material according to the propagation direction of the spreading route Statistics of total amount of all materials after labeling materials/>Substituting the formula to calculate the priority index of each marked material:
In the method, in the process of the invention, Is a priority index,/>Is constant,/>To the/>, following marking of the material, according to the propagation direction of the propagation routeCombustion propagation velocity of material.
The material after marking the material includes the material under all branches, but does not include the material in the state of combustion, and the total amount of the material is counted only before the material in the state of combustion.
S401-2, sequencing from large to small according to the priority index of the marked materials, taking a safety exit as a starting point, taking any position of the edge of the temperature coverage area of the marked material with the highest ranking of the rescue sequence as a rescue point, and planning a shortest path from the starting point to the rescue point in a rescue area as a rescue route. When the temperature of the stacking position of the marked materials is less than the temperature threshold valueWhen the next rescue point is found again according to the rescue sequence, the rescue route is planned again by taking the current rescue point as a starting point until the temperature of all the marked material stacking positions is less than the temperature threshold/>The planning is stopped.
The fire spreading model can be corrected in real time according to the fire, and the correction comprises spreading route correction and spreading speed correction. When the material below the spreading route does not burn in the expected period, the spreading route behind the material is deleted. When the spreading speed of a certain material does not accord with the expected speed, the burning starting time of all materials after the material under the corresponding spreading route is synchronously adjusted.
In the rescue process, the thermal imaging picture is analyzed in real time to calibrate the size and the boundary of the rescue area, and when the rescue area is changed, the rescue route is adjusted accordingly to be ensured to be in the rescue area.
The fire-fighting projection lamp adjusts the focal length of the lens, the brightness of the light source and the projection angle in real time according to the scene condition, adjusts the projection pattern in real time according to the change of the rescue route, and ensures that the fire-fighting route can be projected onto the ground position of the warehouse corresponding to the fire-fighting route with proper size, proper brightness and angle.
S402, setting evacuation time lengthReal-time analysis of evacuation duration/>, from current time to evacuation duration using a fire spread modelAnd if the internal rescue area still contains at least one safety exit, and if the ratio of the area of the rescue area to the warehouse area is still larger than the safety ratio threshold, the internal rescue area is not processed if the internal rescue area is judged to be larger than the safety ratio threshold, and otherwise, a loudspeaker or an audible-visual alarm is used for notifying personnel to evacuate the warehouse area.
The intelligent on-duty auxiliary management system for the fire control room based on the data analysis comprises a data acquisition module, a fire analysis module, a fire rescue module and a visualization module.
The data acquisition module is used for acquiring chart information, picture information and material information of the warehouse area. The fire analysis module judges whether the warehouse generates fire or not through the picture information and informs operators on duty, finds the burning materials according to the chart information and the material information and analyzes the spreading route and spreading speed of the fire. The fire rescue module calculates a danger index according to the spreading speed of fire, judges whether to alarm or not, selects evacuation or rescue, calculates a priority index of each combustion material respectively, and plans rescue routes for different combustion materials in sequence. The visual module displays the evacuation information or the rescue route through a large screen of the fire control room, and assists personnel to develop work in the form of projecting the rescue route on the ground of the warehouse through a fire-fighting projection lamp.
The data acquisition module comprises a picture information acquisition unit, a chart information acquisition unit and a material information acquisition unit.
The picture information acquisition unit is used for acquiring live-action pictures and thermal imaging pictures in the warehouse. The chart information acquisition unit is used for acquiring a material stacking distribution diagram and a fire evacuation schematic diagram, wherein the material stacking distribution diagram refers to stacking positions of different materials in a warehouse.
The material information acquisition unit is used for acquiring combustion characteristics of different kinds of materials, and comprises a combustion propagation speed, a combustion point, a combustion temperature and a combustion influence distance, wherein the combustion propagation speed refers to the speed of flame propagation along the surface of the material in the combustion process, the combustion temperature refers to the average value of the temperature interval of the material in the combustion process, and the combustion influence distance refers to the farthest distance of the temperature interval of the material in the combustion process.
The fire analysis module comprises a material analysis unit and a spreading analysis unit.
The material analysis unit is used for judging whether fire occurs in the warehouse or not and finding out burning materials. When the temperature in the thermal imaging picture is greater than or equal to the temperature threshold valueNotifying a person on duty in the decontamination chamber of a fire and raising the temperature above a temperature threshold/>The area of the (2) is used as a temperature influence area, the ignition point of materials in the temperature influence area is obtained, and the materials with the temperature of the stacking position being more than or equal to the ignition point are used as combustion materials.
The spread analysis unit is used for analyzing spread information of fire. Firstly, taking combustion materials as combustion starting points and obtaining combustion temperaturesAnd combustion influence distance/>Will be less than or equal to/>, from the starting point of combustionAnd an ignition point of less than or equal to/>Is used as a combustion node. Second, the combustion temperature/>, of the combustion node is obtainedAnd combustion influence distance/>Will be less than or equal to/>, from the combustion nodeAnd an ignition point of less than or equal to/>And the material of the (c) is taken as the next combustion node, and the combustion end point is taken as the combustion end point until the next combustion node meeting the condition does not exist. Finally, the burning starting point, the burning node and the burning terminal point are sequentially connected to be used as spreading routes, the burning propagation speed of each material in each spreading route is respectively used as spreading speeds in different stages, and a fire spreading model is established according to the spreading routes and the spreading speeds.
The fire rescue module comprises a fire judgment unit and a route planning unit.
The fire judgment unit is used for judging whether an alarm is given or not and selecting evacuation or rescue. Firstly, analyzing the type number of materials with burning states in a future period according to a fire spreading model, so as to calculate the risk index of the fire, and alarming to a fire department when the risk index is larger than an index threshold. Secondly, acquiring the receiving time of the person on duty after confirming the fireAnalysis and labeling of/>, using a fire spread modelAnd when the state is the burning material, establishing a temperature coverage area for each marked material, and subtracting the temperature coverage areas of all the marked materials from the warehouse area to obtain a rescue area. And finally, when the rescue area comprises a safety exit and the ratio of the rescue area to the warehouse area is larger than a safety ratio threshold, carrying out rescue route planning, and otherwise, notifying personnel to evacuate the warehouse area.
The route planning unit is used for planning a rescue route for the personnel. First, counting the total amount of materials after marking the materials under each spreading routeAnd the combustion propagation velocity/>, of each materialThereby calculating a priority index. Secondly, sequencing the marked materials from large to small according to the priority index, taking a safety outlet as a starting point, taking any position of the edge of the temperature coverage area of the marked material with the highest ranking of the rescue sequence as a rescue point, and planning a shortest path from the starting point to the rescue point in a rescue area as a rescue route. Finally, when the temperature of the marked material stacking position is less than the temperature threshold/>When the system is used, a rescue route is re-planned according to the rescue sequence until the temperature of all the marked material stacking positions is less than the temperature threshold/>The planning is stopped.
The visual module displays the evacuation information or the rescue route through a large screen of the fire control room, and assists personnel to develop work in the form of projecting the rescue route on the ground of the warehouse through a fire-fighting projection lamp. And analyzing whether the rescue area still contains a safety exit and whether the ratio of the area of the rescue area to the area of the warehouse is still larger than a safety ratio threshold value or not in a period of time in the future according to the real-time fire by using a fire spreading model, if the two judgment results are yes, not processing, and otherwise notifying personnel to evacuate the warehouse area.
Compared with the prior art, the invention has the following beneficial effects:
1. intelligent coping decision: according to the application, the fire information is analyzed in real time so as to establish a fire spreading model, the fire spreading model is used for analyzing the increase of the types and the number of the combustion materials in a period of time in the future and calculating the danger index, and whether the fire needs to be alarmed to a fire department or not is judged according to the danger index, so that the fire spreading model is more intelligent compared with the traditional method that people judge according to experience.
2. Efficient rescue planning: according to the application, rescue routes are sequentially planned from large to small according to the priority index of the marking materials in rescue planning, the number of kinds of burning materials is reduced as much as possible, and the loss caused by fire is reduced. Meanwhile, the more visual ground projection rescue route is adopted, and compared with the nearby principle and the memory route of the traditional technology, the method is more efficient.
3. Flexible fire analysis: in the rescue process, whether the rescue area still contains a safety exit or not and whether the ratio of the area of the rescue area to the area of the warehouse is still larger than a safety ratio threshold value or not is analyzed according to the real-time fire condition, so that the safety of rescue workers is ensured, and compared with the traditional technology, the mechanical rescue is more flexible to perform.
In conclusion, compared with the traditional technology, the intelligent fire emergency treatment method has the advantages of intelligent coping decision, efficient rescue planning, flexible fire analysis and the like, and can improve the fire emergency treatment efficiency.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic flow chart of a method for auxiliary management of intelligent duty of a control room based on data analysis;
Fig. 2 is a schematic structural diagram of an intelligent on-duty auxiliary management system of a control room based on data analysis.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the invention provides a method for assisting management of intelligent duty of a control room based on data analysis, which comprises the following steps:
s100, collecting a material stacking distribution diagram and a fire evacuation schematic diagram of a warehouse area, and image information and material information in the warehouse, judging whether the warehouse generates fire or not and notifying an operator on duty by analyzing the image information.
And S200, finding the burning materials through image information when a fire occurs, analyzing the spreading route and spreading speed of the fire according to the material information and referring to a material stacking area diagram, and establishing a fire spreading model according to the material information.
S300, calculating a danger index of the fire condition, judging whether to alarm or not according to the danger index, dividing a rescue area according to the stacking position of the burning materials, and analyzing whether the rescue area is safe or not according to a fire evacuation schematic diagram so as to select evacuation or rescue.
And S400, informing people to leave the warehouse area after evacuation, planning a rescue route for each burning material in sequence by rescue, monitoring the rescue area in real time to ensure timely evacuation, and assisting the people to carry out work in a mode of projecting the rescue route.
In S100, the material stacking profile refers to stacking positions of different kinds of materials in the warehouse, and the same kind of materials are stacked in a concentrated manner. The image information refers to a live-action picture and a thermal imaging picture in the warehouse, and the live-action picture and the thermal imaging picture are acquired in real time through a thermal imager arranged above the warehouse. The material information refers to the combustion characteristics of different materials, including combustion propagation speed, ignition point, combustion temperature and combustion influence distance, wherein the combustion propagation speed refers to the speed of flame propagation along the surface of the materials in the combustion process, the ignition point refers to the lowest temperature of the materials for starting combustion, the combustion temperature refers to the average value of the temperature interval of the materials in the combustion process, and the combustion influence distance refers to the farthest distance of the temperature interval of the materials in the combustion process. Judging whether the temperatures of different positions in the thermal imaging picture are greater than or equal to a temperature threshold value in real timeAnd if the result is that the fire is not treated, informing the personnel on duty in the fire control room of the fire if the result is that the fire is not treated.
Different kinds of materials have different combustion influence distances due to different densities, temperatures and flame sizes during combustion. When other materials are in the combustion influence distance of the burning materials and the ignition point is lower than the combustion temperature of the burning materials, the materials can be ignited.
The thermal imaging camera can shoot the whole warehouse picture for a single camera, can shoot pictures at different positions of the warehouse for a plurality of cameras respectively, and finally splice and summarize during data processing.
Informing a staff on duty in a control room when a fire condition occurs, wherein the informing mode comprises the steps of synchronously forwarding a live-action picture with the temperature higher than a temperature threshold value position to a large screen of the control room, and carrying out acousto-optic prompt through a vibration bracelet and an intelligent terminal of the staff on duty. The operator confirms whether the fire is misreported or not, and the fire information is continuously analyzed under the condition of non-misreporting.
In S200, the specific steps are as follows:
S201, dividing that the temperature is higher than a temperature threshold value from the thermal imaging picture And (3) taking the region of the material stacking position as a temperature influence region, searching materials with stacking positions in the temperature influence region in a material stacking distribution diagram, comparing the temperature of the material stacking position with the ignition point of the materials, and defining the state of the materials as combustion when the temperature of the material stacking position is greater than or equal to the ignition point of the materials.
S202, taking the material in the combustion state as a combustion starting point, and acquiring the combustion temperature of the combustion starting pointAnd combustion influence distance/>Will be less than or equal to/>, from the starting point of combustionAnd an ignition point of less than or equal to/>Is used as a combustion node. And then acquiring the combustion temperature/>, of the combustion nodeAnd combustion influence distance/>Will be less than or equal to/>, from the combustion nodeAnd an ignition point of less than or equal to/>As the next combustion node. And so on until there is no next combustion node satisfying the condition as the combustion end point.
S203, the combustion starting point, the combustion node and the combustion terminal point are sequentially connected to serve as a spreading route, and the propagation direction from the combustion starting point to the combustion terminal point serves as the spreading route. The combustion propagation speeds of the materials corresponding to the combustion starting point, the combustion node and the combustion end point are respectively used as different propagation speeds under the corresponding propagation routes; and building a fire spreading model according to the spreading route and the spreading speed.
In the case of non-uniform material stacking area and shape, the spreading speed should take the shortest path from the nearest position of the material to the last burning point to the nearest position to the next burning point as the burning spreading direction, and the shortest path is divided by the burning spreading speed to obtain the burning spreading time, and the positions of fire spreading at different times are analyzed according to the burning spreading time of various materials.
Because of the instability of combustion, multiple combustion starting points may exist at the same time, each spreading route may be divided into multiple spreading routes due to branching phenomenon, and each material in the same spreading route has different combustion propagation speeds.
In S300, the specific steps are as follows:
S301, obtaining the current time Setting a set of predicted durations/>Substituting into a fire spreading model, and analyzing to obtain the current time/>Start/>The time state is the type number/>, of the materials burnedSubstituting formula to calculate hazard index/>, of fireWhen the risk index is larger than the index threshold, the system automatically alarms to the fire department, and the formula is as follows:
Predicting duration The values of the interval, the minimum time and the maximum time are preset by staff in order to achieve equal interval time from small to large. The interval value is defined by referring to the normal fire development speed, and the minimum time length and the maximum time length value are set by referring to the time length required for on-site rescue and the time length required for the fire department to rescue in a driving way.
The index threshold is also preset by a worker, and the value refers to the speed of fire development in a real scene. When the danger index is smaller than or equal to the index threshold, the fire condition is slow to develop, and even a self-limiting phenomenon that the combustible material is about to burn out occurs. The rescue can be carried out by oneself under the condition, and the fire department is not required to rescue.
S302, after the person on duty confirms the fire, recording the receiving timeAnalysis and marking using a fire spread modelThe state is the burning material. Setting the normal temperature/>Obtaining the combustion temperature/>, of each marking materialWill/>And/>The temperature decay distance of each marker material is calculated by substituting the temperature decay distances into the air heat conduction equation together.
S303, taking the central coordinate of the stacking position of each marking material as the center of a circle, and taking the corresponding temperature attenuation distance as the radius to divide a circular area as a temperature coverage area. And (3) subtracting the temperature coverage areas of all the marking materials from the warehouse area to obtain a rescue area, judging whether the rescue area comprises at least one safety exit or not according to a fire evacuation schematic diagram, and judging whether the ratio of the area of the rescue area to the area of the warehouse area is greater than a safety ratio threshold value, if so, carrying out rescue planning, and otherwise, carrying out evacuation planning.
The safety exit is used to ensure that personnel can evacuate the warehouse area at any time. The safety ratio threshold is preset by staff, and the specific value refers to the air flow and the personal safety under the condition of different rescue area ratios.
In S400, the specific steps are as follows:
S401, notifying a control room attendant to leave the warehouse area when the evacuation planning is carried out. When rescue planning is carried out, a rescue route is planned and projected onto the ground of a warehouse, and personnel carry out rescue work according to the rescue route projected on the ground, wherein the rescue route planning steps are as follows:
S401-1, analyzing the spreading route of each marked material, and sequentially acquiring the combustion propagation speed of the marked material according to the propagation direction of the spreading route Statistics of total amount of all materials after labeling materials/>Substituting the formula to calculate the priority index of each marked material:
In the method, in the process of the invention, Is a priority index,/>Is constant,/>To the/>, following marking of the material, according to the propagation direction of the propagation routeCombustion propagation velocity of material.
The material after marking the material includes the material under all branches, but does not include the material in the state of combustion, and the total amount of the material is counted only before the material in the state of combustion.
S401-2, sequencing from large to small according to the priority index of the marked materials, taking a safety exit as a starting point, taking any position of the edge of the temperature coverage area of the marked material with the highest ranking of the rescue sequence as a rescue point, and planning a shortest path from the starting point to the rescue point in a rescue area as a rescue route. When the temperature of the stacking position of the marked materials is less than the temperature threshold valueWhen the next rescue point is found again according to the rescue sequence, the rescue route is planned again by taking the current rescue point as a starting point until the temperature of all the marked material stacking positions is less than the temperature threshold/>The planning is stopped.
The fire spreading model can be corrected in real time according to the fire, and the correction comprises spreading route correction and spreading speed correction. When the material below the spreading route does not burn in the expected period, the spreading route behind the material is deleted. When the spreading speed of a certain material does not accord with the expected speed, the burning starting time of all materials after the material under the corresponding spreading route is synchronously adjusted.
In the rescue process, the thermal imaging picture is analyzed in real time to calibrate the size and the boundary of the rescue area, and when the rescue area is changed, the rescue route is adjusted accordingly to be ensured to be in the rescue area.
The fire-fighting projection lamp adjusts the focal length of the lens, the brightness of the light source and the projection angle in real time according to the scene condition, adjusts the projection pattern in real time according to the change of the rescue route, and ensures that the fire-fighting route can be projected onto the ground position of the warehouse corresponding to the fire-fighting route with proper size, proper brightness and angle.
S402, setting evacuation time lengthReal-time analysis of evacuation duration/>, from current time to evacuation duration using a fire spread modelAnd if the internal rescue area still contains at least one safety exit, and if the ratio of the area of the rescue area to the warehouse area is still larger than the safety ratio threshold, the internal rescue area is not processed if the internal rescue area is judged to be larger than the safety ratio threshold, and otherwise, a loudspeaker or an audible-visual alarm is used for notifying personnel to evacuate the warehouse area.
Referring to fig. 2, the invention provides a data analysis-based intelligent duty auxiliary management system for a control room, which comprises a data acquisition module, a fire analysis module, a fire rescue module and a visualization module.
The data acquisition module is used for acquiring chart information, picture information and material information of the warehouse area. The fire analysis module judges whether the warehouse generates fire or not through the picture information and informs operators on duty, finds the burning materials according to the chart information and the material information and analyzes the spreading route and spreading speed of the fire. The fire rescue module calculates a danger index according to the spreading speed of fire, judges whether to alarm or not, selects evacuation or rescue, calculates a priority index of each combustion material respectively, and plans rescue routes for different combustion materials in sequence. The visual module displays the evacuation information or the rescue route through a large screen of the fire control room, and assists personnel to develop work in the form of projecting the rescue route on the ground of the warehouse through a fire-fighting projection lamp.
The data acquisition module comprises a picture information acquisition unit, a chart information acquisition unit and a material information acquisition unit.
The picture information acquisition unit is used for acquiring live-action pictures and thermal imaging pictures in the warehouse. The chart information acquisition unit is used for acquiring a material stacking distribution diagram and a fire evacuation schematic diagram, wherein the material stacking distribution diagram refers to stacking positions of different materials in a warehouse.
The material information acquisition unit is used for acquiring combustion characteristics of different kinds of materials, and comprises a combustion propagation speed, a combustion point, a combustion temperature and a combustion influence distance, wherein the combustion propagation speed refers to the speed of flame propagation along the surface of the material in the combustion process, the combustion temperature refers to the average value of the temperature interval of the material in the combustion process, and the combustion influence distance refers to the farthest distance of the temperature interval of the material in the combustion process.
The fire analysis module comprises a material analysis unit and a spreading analysis unit.
The material analysis unit is used for judging whether fire occurs in the warehouse or not and finding out burning materials. When the temperature in the thermal imaging picture is greater than or equal to the temperature threshold valueNotifying a person on duty in the decontamination chamber of a fire and raising the temperature above a temperature threshold/>The area of the (2) is used as a temperature influence area, the ignition point of materials in the temperature influence area is obtained, and the materials with the temperature of the stacking position being more than or equal to the ignition point are used as combustion materials.
The spread analysis unit is used for analyzing spread information of fire. Firstly, taking combustion materials as combustion starting points and obtaining combustion temperaturesAnd combustion influence distance/>Will be less than or equal to/>, from the starting point of combustionAnd an ignition point of less than or equal to/>Is used as a combustion node. Second, the combustion temperature/>, of the combustion node is obtainedAnd combustion influence distance/>Will be less than or equal to/>, from the combustion nodeAnd an ignition point of less than or equal to/>And the material of the (c) is taken as the next combustion node, and the combustion end point is taken as the combustion end point until the next combustion node meeting the condition does not exist. Finally, the burning starting point, the burning node and the burning terminal point are sequentially connected to be used as spreading routes, the burning propagation speed of each material in each spreading route is respectively used as spreading speeds in different stages, and a fire spreading model is established according to the spreading routes and the spreading speeds.
The fire rescue module comprises a fire judgment unit and a route planning unit.
The fire judgment unit is used for judging whether an alarm is given or not and selecting evacuation or rescue. Firstly, analyzing the type number of materials with burning states in a future period according to a fire spreading model, so as to calculate the risk index of the fire, and alarming to a fire department when the risk index is larger than an index threshold. Secondly, acquiring the receiving time of the person on duty after confirming the fireAnalysis and labeling of/>, using a fire spread modelAnd when the state is the burning material, establishing a temperature coverage area for each marked material, and subtracting the temperature coverage areas of all the marked materials from the warehouse area to obtain a rescue area. And finally, when the rescue area comprises a safety exit and the ratio of the rescue area to the warehouse area is larger than a safety ratio threshold, carrying out rescue route planning, and otherwise, notifying personnel to evacuate the warehouse area.
The route planning unit is used for planning a rescue route for the personnel. First, counting the total amount of materials after marking the materials under each spreading routeAnd the combustion propagation velocity/>, of each materialThereby calculating a priority index. Secondly, sequencing the marked materials from large to small according to the priority index, taking a safety outlet as a starting point, taking any position of the edge of the temperature coverage area of the marked material with the highest ranking of the rescue sequence as a rescue point, and planning a shortest path from the starting point to the rescue point in a rescue area as a rescue route. Finally, when the temperature of the marked material stacking position is less than the temperature threshold/>When the system is used, a rescue route is re-planned according to the rescue sequence until the temperature of all the marked material stacking positions is less than the temperature threshold/>The planning is stopped.
The visual module displays the evacuation information or the rescue route through a large screen of the fire control room, and assists personnel to develop work in the form of projecting the rescue route on the ground of the warehouse through a fire-fighting projection lamp. And analyzing whether the rescue area still contains a safety exit and whether the ratio of the area of the rescue area to the area of the warehouse is still larger than a safety ratio threshold value or not in a period of time in the future according to the real-time fire by using a fire spreading model, if the two judgment results are yes, not processing, and otherwise notifying personnel to evacuate the warehouse area.
Example 1: assuming that there are currently two marking materials A1 and A2 together, the propagation routes in which they are located are analyzed, and the combustion propagation speeds of the materials after marking the materials are as follows:
combustion propagation speed of each material after A1:
the first material: 5cm/s; and (3) a second material: 8cm/s; and a third material: 12cm/s;
combustion propagation speed of each material after A2:
The first material: 12cm/s; and (3) a second material: 15cm/s; and a third material: 9cm/s; fourth material: 10cm/s;
With this, the total amount of all materials after A1 was 3, the total amount of all materials after A2 was 4, and when the constant was 5, the priority index of A1 and A2 was calculated by substituting the formula:
priority index of A1:
Priority index of A2:
Because the priority index of A2 is larger than that of A1, a rescue route is planned for the A2 marked material when rescue is carried out.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The intelligent on-duty auxiliary management method for the control room based on data analysis is characterized by comprising the following steps of: the method comprises the following steps:
S100, collecting a material stacking distribution diagram and a fire evacuation schematic diagram of a warehouse area, and image information and material information in the warehouse, judging whether the warehouse generates fire or not and notifying an on-duty person by analyzing the image information;
S200, finding the burning materials through image information when a fire occurs, analyzing the spreading route and spreading speed of the fire according to the material information and referring to a material stacking area diagram, and establishing a fire spreading model according to the spreading route and spreading speed;
S300, calculating a danger index of a fire condition, judging whether to alarm or not according to the danger index, dividing a rescue area according to the stacking position of the burning materials, and analyzing whether the rescue area is safe or not according to a fire evacuation schematic diagram so as to select evacuation or rescue;
And S400, informing people to leave the warehouse area after evacuation, planning a rescue route for each burning material in sequence by rescue, monitoring the rescue area in real time to ensure timely evacuation, and assisting the people to carry out work in a mode of projecting the rescue route.
2. The intelligent duty-assisted management method for a control room based on data analysis of claim 1, wherein the method comprises the following steps: in S100, a material stacking distribution diagram refers to stacking positions of different kinds of materials in a warehouse, and the same kind of materials are stacked in a concentrated manner; the image information refers to a live-action picture and a thermal imaging picture in the warehouse, and the live-action picture and the thermal imaging picture are acquired in real time through a thermal imager arranged above the warehouse; the material information refers to the combustion characteristics of different materials, including combustion propagation speed, ignition point, combustion temperature and combustion influence distance, wherein the combustion propagation speed refers to the speed of flame propagation along the surface of the materials in the combustion process, the ignition point refers to the lowest temperature of the materials for starting combustion, the combustion temperature refers to the average value of the temperature interval of the materials in the combustion process, and the combustion influence distance refers to the farthest distance of the temperature interval of the materials in the combustion process; judging whether the temperatures of different positions in the thermal imaging picture are greater than or equal to a temperature threshold value in real timeAnd if the result is that the fire is not treated, informing the personnel on duty in the fire control room of the fire if the result is that the fire is not treated.
3. The intelligent duty-assisted management method for a control room based on data analysis of claim 2, wherein the method comprises the following steps: in S200, the specific steps are as follows:
S201, dividing that the temperature is higher than a temperature threshold value from the thermal imaging picture The temperature of the material stacking position is compared with the ignition point of the material stacking position, and when the temperature of the material stacking position is greater than or equal to the ignition point of the material stacking position, the state of the material is defined as combustion;
S202, taking the material in the combustion state as a combustion starting point, and acquiring the combustion temperature of the combustion starting point And combustion influence distance/>Will be less than or equal to/>, from the starting point of combustionAnd an ignition point of less than or equal to/>Is used as a combustion node; and then acquiring the combustion temperature/>, of the combustion nodeAnd combustion influence distance/>Will be less than or equal to/>, from the combustion nodeAnd an ignition point of less than or equal to/>As the next combustion node; and the like, until the next combustion node meeting the condition does not exist, taking the next combustion node as a combustion end point;
S203, the combustion starting point, the combustion node and the combustion terminal point are sequentially connected and then serve as a spreading route, and the spreading direction from the combustion starting point to the combustion terminal point serves as the spreading route; the combustion propagation speeds of the materials corresponding to the combustion starting point, the combustion node and the combustion end point are respectively used as different propagation speeds under the corresponding propagation routes; and building a fire spreading model according to the spreading route and the spreading speed.
4. The intelligent duty-assisted management method for a control room based on data analysis according to claim 3, wherein the method comprises the following steps of: in S300, the specific steps are as follows:
S301, obtaining the current time Setting a set of predicted durations/>Substituting into a fire spreading model, and analyzing to obtain the current time/>Start/>The time state is the type number/>, of the materials burnedSubstituting formula to calculate hazard index/>, of fireWhen the risk index is larger than the index threshold, the system automatically alarms to the fire department, and the formula is as follows:
；
s302, after the person on duty confirms the fire, recording the receiving time Analysis and marking using a fire spread modelThe state is the burning material; setting the normal temperature/>Obtaining the combustion temperature/>, of each marking materialWill/>And/>Substituting the temperature attenuation distances into an air heat conduction equation to calculate the temperature attenuation distance of each marking material;
S303, dividing a circular area to serve as a temperature coverage area by taking the central coordinate of the stacking position of each marking material as the circle center and the corresponding temperature attenuation distance as the radius; and (3) subtracting the temperature coverage areas of all the marking materials from the warehouse area to obtain a rescue area, judging whether the rescue area comprises at least one safety exit or not according to a fire evacuation schematic diagram, and judging whether the ratio of the area of the rescue area to the area of the warehouse area is greater than a safety ratio threshold value, if so, carrying out rescue planning, and otherwise, carrying out evacuation planning.
5. The intelligent duty-assisted management method for a control room based on data analysis of claim 4, wherein the method comprises the following steps: in S400, the specific steps are as follows:
s401, notifying a control room attendant to leave a warehouse area when evacuation planning is performed; when rescue planning is carried out, a rescue route is planned and projected onto the ground of a warehouse, and personnel carry out rescue work according to the rescue route projected on the ground, wherein the rescue route planning steps are as follows:
S401-1, analyzing the spreading route of each marked material, and sequentially acquiring the combustion propagation speed of the marked material according to the propagation direction of the spreading route Statistics of total amount of all materials after labeling materials/>Substituting the formula to calculate the priority index of each marked material:
；
In the method, in the process of the invention, Is a priority index,/>Is constant,/>A combustion propagation velocity of the first material after marking the material according to a propagation direction of the propagation route;
S401-2, sequencing from large to small according to the priority index of the marked materials, taking a safety exit as a starting point, taking any position of the edge of a temperature coverage area of the marked material with the highest ranking of the rescue sequence as a rescue point, and planning a shortest path from the starting point to the rescue point in a rescue area as a rescue route; when the temperature of the stacking position of the marked materials is less than the temperature threshold value When the next rescue point is found again according to the rescue sequence, the rescue route is planned again by taking the current rescue point as a starting point until the temperature of all the marked material stacking positions is less than the temperature threshold/>Stopping planning;
s402, setting evacuation time length Real-time analysis of evacuation duration/>, from current time to evacuation duration using a fire spread modelAnd if the internal rescue area still contains at least one safety exit, and if the ratio of the area of the rescue area to the warehouse area is still larger than the safety ratio threshold, the internal rescue area is not processed if the internal rescue area is judged to be larger than the safety ratio threshold, and otherwise, a loudspeaker or an audible-visual alarm is used for notifying personnel to evacuate the warehouse area.
6. The utility model provides a supplementary management system on duty of control room intelligence disappears based on data analysis which characterized in that: the system comprises a data acquisition module, a fire analysis module, a fire rescue module and a visualization module;
The data acquisition module is used for acquiring chart information, picture information and material information of the warehouse area; the fire analysis module judges whether the warehouse generates fire or not and informs an attendant according to the picture information, finds the burning material according to the chart information and the material information and analyzes the spreading route and spreading speed of the fire; the fire rescue module calculates a danger index according to the spreading speed of fire, judges whether to alarm or not, selects evacuation or rescue, calculates a priority index of each combustion material respectively, and plans rescue routes for different combustion materials in sequence; the visual module displays the evacuation information or the rescue route through a large screen of the fire control room, and assists personnel to develop work in the form of projecting the rescue route on the ground of the warehouse through a fire-fighting projection lamp.
7. The intelligent duty-assisted management system of a control room based on data analysis of claim 6, wherein: the data acquisition module comprises a picture information acquisition unit, a chart information acquisition unit and a material information acquisition unit;
The picture information acquisition unit is used for acquiring live-action pictures and thermal imaging pictures in the warehouse; the chart information acquisition unit is used for acquiring a material stacking distribution diagram and a fire-fighting evacuation schematic diagram, wherein the material stacking distribution diagram refers to stacking positions of different materials in a warehouse;
The material information acquisition unit is used for acquiring combustion characteristics of different kinds of materials, and comprises a combustion propagation speed, a combustion point, a combustion temperature and a combustion influence distance, wherein the combustion propagation speed refers to the speed of flame propagation along the surface of the material in the combustion process, the combustion temperature refers to the average value of the temperature interval of the material in the combustion process, and the combustion influence distance refers to the farthest distance of the temperature interval of the material in the combustion process.
8. The intelligent duty-assisted management system for a control room based on data analysis of claim 7, wherein: the fire analysis module comprises a material analysis unit and an extension analysis unit;
the material analysis unit is used for judging whether fire occurs in the warehouse or not and finding out combustion materials; when the temperature in the thermal imaging picture is greater than or equal to the temperature threshold value When the condition is that, informing the personnel on duty in the fire control room that the fire condition is happened and the temperature is higher than the temperature threshold valueThe area of the (2) is used as a temperature influence area, the ignition point of materials in the temperature influence area is obtained, and the materials with the temperature of the stacking position being more than or equal to the ignition point are used as combustion materials;
The spreading analysis unit is used for analyzing spreading information of fire; firstly, taking combustion materials as combustion starting points and obtaining combustion temperatures And combustion influence distance/>Will be less than or equal to/>, from the starting point of combustionAnd an ignition point of less than or equal to/>Is used as a combustion node; second, the combustion temperature/>, of the combustion node is obtainedAnd combustion influence distance/>Will be less than or equal to/>, from the combustion nodeAnd an ignition point of less than or equal to/>The material of (2) is used as the next combustion node, and the combustion end point is used until the next combustion node meeting the condition does not exist; finally, the burning starting point, the burning node and the burning terminal point are sequentially connected to be used as spreading routes, the burning propagation speed of each material in each spreading route is respectively used as spreading speeds in different stages, and a fire spreading model is established according to the spreading routes and the spreading speeds.
9. The intelligent duty-assisted management system of a control room based on data analysis of claim 8, wherein: the fire rescue module comprises a fire judgment unit and a route planning unit;
the fire judgment unit is used for judging whether to alarm or select evacuation or rescue; firstly, analyzing the type quantity of materials with the combustion state in a future period according to a fire spreading model, so as to calculate the risk index of the fire, and alarming to a fire department when the risk index is larger than an index threshold; secondly, acquiring the receiving time of the person on duty after confirming the fire Analysis and labeling of/>, using a fire spread modelThe state is the burning material, a temperature coverage area is built for each marked material, and a rescue area is obtained after the temperature coverage areas of all marked materials are subtracted from a warehouse area; finally, when the rescue area comprises a safety exit and the ratio of the rescue area to the warehouse area is larger than a safety ratio threshold, carrying out rescue route planning, and otherwise, notifying personnel to evacuate the warehouse area;
the route planning unit is used for planning a rescue route for the personnel; first, counting the total amount of materials after marking the materials under each spreading route And the combustion propagation velocity/>, of each materialThereby calculating a priority index; secondly, sequencing the marked materials from large to small according to the priority index, taking a safety outlet as a starting point, taking any position of the edge of a temperature coverage area of the marked material with the highest ranking of the rescue sequence as a rescue point, and planning a shortest path from the starting point to the rescue point in a rescue area as a rescue route; finally, when the temperature of the marked material stacking position is less than the temperature threshold/>When the system is used, a rescue route is re-planned according to the rescue sequence until the temperature of all the marked material stacking positions is less than the temperature threshold/>The planning is stopped.
10. The intelligent shift auxiliary management system for a control room based on data analysis according to claim 9, wherein: the visual module displays evacuation information or rescue routes through a large screen of the fire control room, and assists personnel to work in a mode of projecting rescue routes on the ground of the warehouse through fire-fighting projection lamps; and analyzing whether the rescue area still contains a safety exit and whether the ratio of the area of the rescue area to the area of the warehouse is still larger than a safety ratio threshold value or not in a period of time in the future according to the real-time fire by using a fire spreading model, if the two judgment results are yes, not processing, and otherwise notifying personnel to evacuate the warehouse area.
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