CN112801457A - Fire-fighting linkage method and system based on regional fire risk assessment - Google Patents
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Abstract
The invention discloses a fire-fighting linkage method and a fire-fighting linkage system based on regional fire risk assessment, wherein the method comprises the following steps of: dividing a monitoring area into a plurality of evaluation units, and evaluating the fire risk level of any evaluation unit, wherein the fire risk level is one to four; step 2: performing area key level evaluation on any evaluation unit, wherein the area key level is one to four levels; and step 3: any one of the IoT detection devices detects and reports early warning information, and the early warning information of all the IoT detection devices is analyzed to obtain the early warning grade of any one evaluation area, wherein the early warning grade is one-level to four-level; and 4, step 4: determining the comprehensive linkage grade of any evaluation unit according to the fire risk grade, the regional key grade and the early warning grade, and determining whether full-automatic fire-fighting linkage is performed according to the comprehensive linkage grade; the invention can more accurately control the linkage action of the fire, realize automatic linkage guarantee safety in emergency, and reduce accidental loss by artificial judgment in conventional conditions.
Description
Technical Field
The invention belongs to the field of fire-fighting linkage of fire disasters, and particularly relates to a fire-fighting linkage method and system based on regional fire risk assessment.
Background
At present, the construction of a fire safety management system can involve forward abnormal information monitoring and reverse linkage control operation to ensure timely discovery and timely control of fire, for example, a fireproof door is timely closed after the fire is discovered, and a fan is opened. The relation between the two can be controlled by man after the abnormity is found, and can also be controlled by automatic linkage of software.
However, due to the reasons of false alarm, artificial factors and the like, automatic control is easy to prevent and unnecessary loss is caused, and people control the automatic control and worry that emergency situations cannot be responded timely, so that fire fighting linkage falls into an embarrassing place.
Disclosure of Invention
The invention aims to provide a fire-fighting linkage method and system based on regional fire risk assessment, and aims to solve the problem that in the prior art, the existing fire-fighting management system is controlled manually, so that fire cannot be dealt with timely, but is automatically controlled by software alone, and precaution can be avoided.
In order to achieve the purpose, the invention provides the following technical scheme:
a fire-fighting linkage method based on regional fire risk assessment comprises the following steps:
step 1: dividing a monitoring area into a plurality of evaluation units, and evaluating the fire risk level of any evaluation unit, wherein the fire risk level is one to four;
step 2: performing area key level evaluation on any evaluation unit, wherein the area key level is one to four levels;
and step 3: any one of the IoT detection devices detects and reports early warning information, and the early warning information of all the IoT detection devices is analyzed to obtain the early warning grade of any one evaluation area, wherein the early warning grade is one-level to four-level;
and 4, step 4: and determining the comprehensive linkage grade of any evaluation unit according to the fire risk grade, the regional key grade and the early warning grade, and determining whether the full-automatic fire-fighting linkage is performed according to the comprehensive linkage grade.
Preferably, the step 1 comprises the steps of:
step 1.1: carrying out gridding division on the monitoring area, determining fire hazard sources in any evaluation unit, and calculating the shortest path value of all the fire hazard sources in any evaluation unit;
step 1.2: and respectively dividing risk levels for the corresponding evaluation units according to the shortest path value, wherein the risk levels comprise one to four levels, the first level is low risk, the second level is medium risk, the third level is high risk, and the fourth level is high risk.
Preferably, in step 1.1, calculating the shortest path value of all fire hazard sources in any evaluation unit includes the following steps:
step 1.1.1: for all fire hazard sources F in any evaluation unitNCalculating each fire hazard source F by Dijkstra algorithmiI ═ 1, 2, 3.., N } to all other sources of fire risk FNShortest Path value D, N ≠ ii；
Step 1.1.2: the smallest shortest path value D in the corresponding evaluation unitiAs the final shortest path value.
A fire protection linkage method based on regional fire risk assessment according to claim 2, wherein the step 1.2 comprises the following steps:
step 1.2.1: respectively setting the weight of the shortest path value for the evaluation unit and the neighborhood evaluation unit;
step 1.2.2: and determining a corresponding neighborhood evaluation unit for any evaluation unit, calculating the sum of the shortest path values of the corresponding evaluation units, judging that the sum of the shortest paths belongs to a quantization interval of the risk level, and determining the risk level of the corresponding evaluation unit.
Preferably, in step 3, the internet of things detection device includes a smoke sensor and a temperature sensor.
Preferably, in the step 3, when only the smoke sensor detects that smoke reaches the first concentration threshold or only the temperature sensor detects that temperature reaches the first temperature threshold, setting the early warning level as one level;
when the smoke sensor detects that smoke reaches a first concentration threshold value and the temperature sensor detects that the temperature reaches a first temperature threshold value, the method is in a second stage;
when the smoke sensor detects that smoke reaches a second concentration threshold or only the temperature sensor detects that the temperature reaches a second temperature threshold, setting the early warning level to be three levels;
and when the smoke sensor detects that smoke reaches a second concentration threshold and the temperature sensor detects that the temperature reaches a second temperature threshold, setting the early warning level to be four levels.
Preferably, in the step 4, the comprehensive linkage grade is one to four grades;
when at least two levels of the fire risk level, the area key level and the early warning level are the same level, the comprehensive linkage level is the same level;
when one of the fire risk grade, the area key grade and the early warning grade is four grades and one is three grades or one is four grades and the other is two grades, the comprehensive linkage grade is three grades;
and when one of the fire risk grade, the area key grade and the early warning grade is three-grade and the other one is two-grade, the comprehensive linkage grade is two-grade.
A fire-fighting linkage system based on regional fire risk assessment comprises a camera device, an Internet of things detection device and an electric control fire-fighting device, wherein the camera device and the Internet of things detection device are both connected with a controller; the camera shooting device is used for acquiring a detection area, an evaluation unit is provided with a plurality of internet of things detection devices and an electric control fire fighting device, and the internet of things detection devices are used for detecting the corresponding evaluation units; the fire fighting equipment is used for extinguishing a fire of the corresponding evaluation unit.
Compared with the prior art, the invention has the beneficial effects that:
the invention can more accurately control the linkage action of the fire, realize automatic linkage guarantee safety in emergency, and reduce accidental loss by artificial judgment in conventional conditions.
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FIG. 1 is a flow chart of the present invention.
Fig. 2 is a block diagram of the system of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a fire-fighting linkage method based on regional fire risk assessment, the method comprising the steps of:
step 1: dividing a monitoring area into a plurality of evaluation units, and evaluating the fire risk level of any evaluation unit, wherein the fire risk level is one to four;
step 2: performing area key level evaluation on any evaluation unit, wherein the area key level is one to four levels;
and step 3: any one of the IoT detection devices detects and reports early warning information, and the early warning information of all the IoT detection devices is analyzed to obtain the early warning grade of any one evaluation area, wherein the early warning grade is one-level to four-level;
and 4, step 4: and determining the comprehensive linkage grade of any evaluation unit according to the fire risk grade, the regional key grade and the early warning grade, and determining whether the full-automatic fire-fighting linkage is performed according to the comprehensive linkage grade.
According to the fire fighting equipment, the danger level is comprehensively judged through the fire risk level, the area key level and the early warning level instead of determining the danger level through a single factor, the danger degree is comprehensively considered, whether full-automatic fire fighting linkage is needed or not is determined through the danger level, the existing emergency can be quickly judged and timely extinguished, and the fire fighting equipment can be manually extinguished or the switch of the fire fighting equipment is manually controlled under the condition of low danger level, so that the fire fighting equipment can automatically operate.
As one embodiment of the present invention, the step 1 includes the following steps:
step 1.1: carrying out gridding division on the monitoring area, determining fire hazard sources in any evaluation unit, and calculating the shortest path value of all the fire hazard sources in any evaluation unit;
in the invention, the camera device acquires the monitoring area, the monitoring area is divided in a gridding way, the position of the fire hazard source can be provided with the obvious mark, the controller can determine the position and the quantity of the fire hazard source by the obvious mark after image preprocessing is carried out on the acquired detection area, the fire hazard source comprises electric equipment, inflammable objects and the like, and the fire hazard source is known in the field and can be set by a person skilled in the art according to the actual situation.
In the invention, when a fire hazard source in an evaluation unit catches fire, the fire hazard source closest to the fire hazard source is also affected, so that the fire behavior is increased and spread continuously, and whether the fire behavior of the evaluation unit is increased rapidly and the rapidly increasing speed are measured by calculating the shortest path value, when the shortest path value is smaller, the fire behavior of the evaluation unit is increased rapidly, the rapidly increasing speed is larger, and vice versa.
In the step 1.1, calculating the shortest path value of all fire hazard sources in any evaluation unit comprises the following steps:
step 1.1.1: for all fire hazard sources F in any evaluation unitNCalculating each fire hazard source F by Dijkstra algorithmiI ═ 1, 2, 3.., N } to all other sources of fire risk FNShortest Path value D, N ≠ ii；
Step 1.1.2: the smallest shortest path value D in the corresponding evaluation unitiAs the final shortest path value.
In step 1.1.1 of the invention, if there is no fire hazard source or there is only one fire hazard source in any evaluation unit, the shortest path is 0, when there are 2 fire hazard sources, the distance between the fire hazard sources is the shortest path value, when there are more than 3 fire hazard sources, the shortest path with each fire hazard source as the starting point needs to be traversed, and finally, the shortest path value of each evaluation unit is obtained through step 1.1.2.
Step 1.2: and respectively dividing risk levels for the corresponding evaluation units according to the shortest path value, wherein the risk levels comprise one to four levels, the first level is low risk, the second level is medium risk, the third level is high risk, and the fourth level is high risk.
The step 1.2 comprises the following steps:
step 1.2.1: respectively setting the weight of the shortest path value for the evaluation unit and the neighborhood evaluation unit;
step 1.2.2: and determining a corresponding neighborhood evaluation unit for any evaluation unit, calculating the sum of the shortest path values of the corresponding evaluation units, judging that the sum of the shortest paths belongs to a quantization interval of the risk level, and determining the risk level of the corresponding evaluation unit.
In step 1.2.1 of the present invention, the neighborhood evaluating unit is a circle drawn by taking the center of one evaluating unit as the center of a circle and the minimum distance between the center of the evaluating unit and the center of another evaluating unit as the radius, and all the evaluating units affected by the circle are the neighborhood evaluating units of the evaluating unit. The severity of the fire can be further determined by arranging the neighborhood evaluation units for judging the influence of the corresponding evaluation units on the neighborhood evaluation units; since the source point of the fire is the corresponding evaluation unit itself, not the neighboring evaluation unit, the weights of the shortest path values of the two evaluation units are different, and generally the weight of the shortest path value of an evaluation unit is greater than the weight of the shortest path value of a neighboring evaluation unit.
In step 1.2.2, the risk level includes four levels, each level has a quantization interval corresponding to the risk level, the value of the quantization interval is a preset value, the value of the quantization interval is different according to the area of the evaluation unit, and a person skilled in the art can set the value according to the actual situation.
In step 2 of the present invention, the area emphasis level is manually set, and the area emphasis level is used to evaluate the importance of the corresponding evaluation unit, for example, if an evaluation unit stores secret data and only one copy of the secret data is stored, the level of the evaluation unit is the fourth level, and if the evaluation unit is the company foreground, the level is the first level, which is common knowledge in the art, and the person skilled in the art can set the evaluation level according to the actual situation.
In the step 3, the internet of things detection device comprises a smoke sensor and a temperature sensor.
In the step 3, when only the smoke sensor detects that smoke reaches a first concentration threshold or only the temperature sensor detects that temperature reaches a first temperature threshold, setting the early warning level as one level;
when the smoke sensor detects that smoke reaches a first concentration threshold value and the temperature sensor detects that the temperature reaches a first temperature threshold value, the method is in a second stage;
when the smoke sensor detects that smoke reaches a second concentration threshold or only the temperature sensor detects that the temperature reaches a second temperature threshold, setting the early warning level to be three levels;
and when the smoke sensor detects that smoke reaches a second concentration threshold and the temperature sensor detects that the temperature reaches a second temperature threshold, setting the early warning level to be four levels.
In the step 4, the comprehensive linkage grade is one to four grades;
when at least two levels of the fire risk level, the area key level and the early warning level are the same level, the comprehensive linkage level is the same level;
when one of the fire risk grade, the area key grade and the early warning grade is four grades and one is three grades or one is four grades and the other is two grades, the comprehensive linkage grade is three grades; it should be noted that the case where two levels are four levels and one level is three levels is not included here, and the case where two levels are four levels and one level is two levels is not included here.
When one of the fire risk grade, the area key grade and the early warning grade is three-grade and the other one is two-grade, the comprehensive linkage grade is two-grade; it should be noted that the case that two levels are three levels and one level is two levels is not included here;
except the second, third and fourth stages, the rest are the first stage, and the first stage is the condition that whether the fire can be extinguished without fire extinguishing equipment is judged by people; the second level artificially judges whether the fire extinguishing equipment such as a fire extinguisher is needed to finish the fire extinguishing; the third level is the situation that whether automatic fire extinguishing equipment such as a fire nozzle needs to be manually judged to extinguish the fire; the fourth stage is the situation that the controller automatically judges whether to use automatic fire extinguishing equipment such as a fire nozzle to extinguish fire.
A fire-fighting linkage system based on regional fire risk assessment comprises a camera device, an Internet of things detection device and an electric control fire-fighting device, wherein the camera device and the Internet of things detection device are both connected with a controller; the camera shooting device is used for acquiring a detection area, an evaluation unit is provided with a plurality of internet of things detection devices and an electric control fire fighting device, and the internet of things detection devices are used for detecting the corresponding evaluation units; the fire fighting equipment is used for extinguishing a fire of the corresponding evaluation unit.
The number of the image capturing devices may be one or more, and the number of the image capturing devices is set as long as the number of the image capturing devices is sufficient to acquire the monitoring area image; the electric control fire-fighting equipment is a fire-fighting spray head, and the fire-fighting spray head can be automatically judged by a controller to be opened or not and can also be manually opened by a manual switch; the internet of things detection device is a smoke sensor and a temperature sensor, and any evaluation unit is provided with the smoke sensor and the temperature sensor.
The controller is also connected with a human-computer interaction module and an alarm module, the human-computer interaction module is used for setting parameters such as quantization intervals, area key grades and the like and displaying the number of an evaluation unit of fire when the fire breaks out, and the alarm module is used for giving out alarm sound.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A fire-fighting linkage method based on regional fire risk assessment is characterized by comprising the following steps:
step 1: dividing a monitoring area into a plurality of evaluation units, and evaluating the fire risk level of any evaluation unit, wherein the fire risk level is one to four;
step 2: performing area key level evaluation on any evaluation unit, wherein the area key level is one to four levels;
and step 3: any one of the IoT detection devices detects and reports early warning information, and the early warning information of all the IoT detection devices is analyzed to obtain the early warning grade of any one evaluation area, wherein the early warning grade is one-level to four-level;
and 4, step 4: and determining the comprehensive linkage grade of any evaluation unit according to the fire risk grade, the regional key grade and the early warning grade, and determining whether the full-automatic fire-fighting linkage is performed according to the comprehensive linkage grade.
2. A fire fighting linkage system based on regional fire risk assessment according to claim 1, wherein the step 1 comprises the following steps:
step 1.1: carrying out gridding division on the monitoring area, determining fire hazard sources in any evaluation unit, and calculating the shortest path value of all the fire hazard sources in any evaluation unit;
step 1.2: and respectively dividing risk levels for the corresponding evaluation units according to the shortest path value, wherein the risk levels comprise one to four levels, the first level is low risk, the second level is medium risk, the third level is high risk, and the fourth level is high risk.
3. A fire fighting linkage system based on regional fire risk assessment according to claim 2, wherein in step 1.1, calculating the shortest path value of all fire hazard sources in any assessment unit comprises the following steps:
step 1.1.1: for all fire hazard sources F in any evaluation unitNCalculating each fire hazard source F by Dijkstra algorithmiI ═ 1, 2, 3.., N } to all other sources of fire risk FNShortest Path value D, N ≠ ii；
Step 1.1.2: the smallest shortest path value D in the corresponding evaluation unitiAs the final shortest path value.
4. A fire protection linkage method based on regional fire risk assessment according to claim 2, wherein the step 1.2 comprises the following steps:
step 1.2.1: respectively setting the weight of the shortest path value for the evaluation unit and the neighborhood evaluation unit;
step 1.2.2: and determining a corresponding neighborhood evaluation unit for any evaluation unit, calculating the sum of the shortest path values of the corresponding evaluation units, judging that the sum of the shortest paths belongs to a quantization interval of the risk level, and determining the risk level of the corresponding evaluation unit.
5. A fire fighting linkage system based on regional fire risk assessment according to claim 1, wherein in the step 3, the internet of things detection device comprises a smoke sensor and a temperature sensor.
6. A fire-fighting linkage system based on regional fire risk assessment according to claim 5, characterized in that in the step 3, when only smoke sensor detects that smoke reaches the first concentration threshold or only temperature sensor detects that temperature reaches the first temperature threshold, the early warning level is set as one level;
when the smoke sensor detects that smoke reaches a first concentration threshold value and the temperature sensor detects that the temperature reaches a first temperature threshold value, the method is in a second stage;
when the smoke sensor detects that smoke reaches a second concentration threshold or only the temperature sensor detects that the temperature reaches a second temperature threshold, setting the early warning level to be three levels;
and when the smoke sensor detects that smoke reaches a second concentration threshold and the temperature sensor detects that the temperature reaches a second temperature threshold, setting the early warning level to be four levels.
7. A fire-fighting linkage system based on regional fire risk assessment according to claim 1, wherein in the step 4, the comprehensive linkage grade is one to four;
when at least two levels of the fire risk level, the area key level and the early warning level are the same level, the comprehensive linkage level is the same level;
when one of the fire risk grade, the area key grade and the early warning grade is four grades and one is three grades or one is four grades and the other is two grades, the comprehensive linkage grade is three grades;
and when one of the fire risk grade, the area key grade and the early warning grade is three-grade and the other is two-grade, the comprehensive linkage grade is two-grade.
8. The system for applying the fire-fighting linkage method based on regional fire risk assessment according to any one of claims 1-8, characterized in that the system comprises a camera device, an internet of things detection device and an electric control fire-fighting device, wherein the camera device and the internet of things detection device are both connected with a controller, the electric control fire-fighting device comprises a first control end and a second control end, the first control end is connected with an output end of the controller, and the second control end is matched with a manual switch; the camera shooting device is used for acquiring a detection area, an evaluation unit is provided with a plurality of internet of things detection devices and an electric control fire fighting device, and the internet of things detection devices are used for detecting the corresponding evaluation units; the fire fighting equipment is used for extinguishing a fire of the corresponding evaluation unit.
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| CN115331378A (en) * | 2022-05-12 | 2022-11-11 | 浙江大东吴集团建设有限公司 | Building fire safety assessment method based on single shielding principle |
| CN115331378B (en) * | 2022-05-12 | 2023-09-19 | 浙江大东吴集团建设有限公司 | Building fire safety assessment method based on monomer shielding principle |
| CN115487444A (en) * | 2022-09-30 | 2022-12-20 | 应急管理部四川消防研究所 | Unmanned aerial vehicle fire extinguishing path planning method for long and large traffic tunnel |
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