CN111508172A - Safe evacuation method and system based on network point type accurate escape route measurement and calculation - Google Patents
Safe evacuation method and system based on network point type accurate escape route measurement and calculation Download PDFInfo
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- CN111508172A CN111508172A CN202010152992.5A CN202010152992A CN111508172A CN 111508172 A CN111508172 A CN 111508172A CN 202010152992 A CN202010152992 A CN 202010152992A CN 111508172 A CN111508172 A CN 111508172A
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- 238000005259 measurement Methods 0.000 title abstract description 6
- 238000013507 mapping Methods 0.000 claims abstract description 73
- 239000000779 smoke Substances 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 5
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
- G08B7/066—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources guiding along a path, e.g. evacuation path lighting strip
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Abstract
The invention relates to a safe evacuation method and a safe evacuation system based on a network point type accurate escape route measurement and calculation, wherein the method comprises the following steps: s1: setting a starting point at each room doorway in a building, and setting a terminal point at the bottom of a vertical corridor of the building; s2: detecting a fire point; s3: vertically mapping the end point on the horizontal plane of the starting point to form a mapping end point, and connecting the starting point and the mapping end point to form a run-away straight line; s4: vertically mapping the fire point on a horizontal plane where the starting point is located to form a fire mapping point, and calculating the shortest distance from the fire mapping point to an escape straight line; s5: after the escape straight line with the vertical distance smaller than the preset distance threshold is eliminated, selecting the mapping terminal point corresponding to the shortest escape straight line as the final terminal point; s6: according to the horizontal channel layout of the horizontal plane where the starting point is located, the escape route is guided to the final point along the horizontal channel by taking the point far away from the fire disaster as a rule. The method has the advantages that the escape route is dynamically displayed according to the position of the fire, and the safe and shortest escape route is indicated.
Description
Technical Field
The invention relates to the technical field of fire safety, in particular to a safe evacuation method and a safe evacuation system based on a network point type accurate escape route measurement and calculation.
Background
At present, the existing fire safety management system is used for indicating a safety exit and an escape sign of a safety passage in public places such as subway stations, shopping malls, schools and hospitals, and only fixed contents can be displayed, and dynamic display can not be performed according to the position of a fire disaster. If the location of the fire is at the indicated safe corridor or safe exit, the corresponding indication is likely to be counterproductive and instead push the people towards the fire pit.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a safe evacuation method for accurately measuring and calculating an escape route based on a network point type, which has the advantages of dynamically displaying the escape route and indicating the safe and shortest escape route according to the position of a fire.
The above object of the present invention is achieved by the following technical solutions:
a safe evacuation method for accurately measuring and calculating an escape route based on a network point mode comprises the following steps: s1: setting a starting point at each room doorway in a building, and setting a terminal point at the bottom of a vertical corridor of the building; s2: detecting a fire point; s3: vertically mapping the end point on a horizontal plane where the starting point is located to form a mapping end point, and connecting the starting point with the horizontal mapping point to form a run-away straight line; s4: vertically mapping the fire point on a horizontal plane where the starting point is located to form a fire mapping point, and calculating the shortest distance from the fire mapping point to an escape straight line; s5: after the escape straight line with the vertical distance smaller than the preset distance threshold is eliminated, selecting the mapping terminal point corresponding to the shortest escape straight line as the final terminal point; s6: according to the horizontal channel layout of the horizontal plane where the starting point is located, the escape route is guided to the final point along the horizontal channel by taking the point far away from the fire disaster as a rule.
Further, the method further comprises: in step S3, after the end point is vertically mapped on the horizontal plane where the start point is located to form the mapping end point, the method further includes the following steps before connecting the start point and the horizontal mapping point to form the escape straight line: and judging whether the horizontal plane where the mapping end point is located or the lower part of the horizontal plane has smoke or not, and if so, excluding the mapping end point.
Further, after the step S1 and before the step S2, the method further comprises the following steps: and judging whether the vertical corridor exit corresponding to the terminal is smooth or not, and if not, excluding the terminal.
Aiming at the defects in the prior art, the invention also aims to provide a safe evacuation method for accurately measuring and calculating an escape route based on a network point type, which is used for dynamically displaying the escape route and indicating the safe and shortest escape route according to the position of a fire.
The second aim of the invention is realized by the following technical scheme:
a safety evacuation system based on accurate measurement and calculation of escape routes in a network mode, the system comprises: the starting point module is used for indicating an escape route at the door of a room; the terminal module is used for indicating an escape exit; the fire detection module is used for detecting a fire point; the escape straight line generating module is used for vertically mapping the end point on a horizontal plane where the starting point is located to form a mapping end point, and connecting the starting point with the horizontal mapping point to form an escape straight line; the vertical distance calculation module is used for vertically mapping the fire point on a horizontal plane where the starting point is located to form a fire mapping point and calculating the shortest distance from the fire mapping point to the escape straight line; the system comprises a final point determining module, a mapping terminal point and a final point determining module, wherein the final point determining module is used for selecting the mapping terminal point corresponding to the shortest escape straight line as the final point after excluding the escape straight line of which the vertical distance is smaller than a preset distance threshold; and the escape route module is used for guiding the escape route to the final point along the horizontal channel by taking the far fire point as a rule according to the horizontal channel layout of the horizontal plane where the starting point is located.
Further, the system further comprises: and the corridor smoke detection module is used for judging whether smoke exists on the horizontal plane or below the horizontal plane of the mapping end point, and if yes, the mapping end point is eliminated.
Further, the system further comprises: and the exit detection module is used for judging whether the corridor exit corresponding to the end point is smooth or not, and if not, the end point is eliminated.
Furthermore, the starting point module is an evacuation sign with a direction indication function.
Further, the terminal module is a safety exit indicator.
Further, the system also comprises a safety passage indicator used for indicating the passage according to the escape route.
Furthermore, the evacuation sign, the emergency exit sign and the emergency exit sign are all provided with a sensor for detecting fire.
In summary, the invention includes at least one of the following beneficial technical effects:
when a fire disaster occurs, the escape route is dynamically planned, and people in a building where the fire disaster occurs can be helped to escape along the safe and shortest escape route.
Drawings
FIG. 1 is a flow chart of the method of the present embodiment;
FIG. 2 is a first schematic diagram of the present embodiment;
FIG. 3 is a schematic diagram II of the present embodiment;
FIG. 4 is a system block diagram of the present embodiment;
fig. 5 is a topological relation diagram of the present embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the invention discloses a safe evacuation method for accurately calculating an escape route based on a network point type, which comprises the following steps:
s1: a starting point is set at each room doorway in the building and a finishing point is set at the bottom of the vertical corridor of the building.
In the embodiment of the invention, since the people are basically in the room, the starting point is arranged at the door of the room, and the people who run out of the room can be guided. The bottom of the vertical corridor is also the exit of the vertical corridor, and as long as a building with floors is provided, the vertical corridor is inevitably provided, and the vertical corridor is actually a staircase.
S2: and detecting a fire point.
In the embodiment of the present invention, the fire point is detected by a sensor having a function of detecting a fire in the same manner as a conventional fire detection. Sensors are placed at various locations in the building, and the location where a fire is detected is the fire point.
Before the step, whether the exit of the corridor corresponding to the terminal is smooth or not needs to be judged, and if not, the terminal is eliminated. If the exit of the corridor is closed, people cannot escape through the corridor, so that the exit of the corridor needs to be detected. This process can be through artificial observation, whether the manual selection corridor export is unobstructed, perhaps carries out image recognition automated inspection through the camera and also can realize.
S3: and vertically mapping the end point on the horizontal plane where the starting point is located to form a mapping end point, and connecting the starting point with the horizontal mapping point to form a run-away straight line.
In the embodiment of the present invention, the mapping end point is actually the stair opening on the same level as the starting point. The escape straight line is not a straight line which can be actually taken but a virtual straight line which is directly used as a basis for judging the distance between the final escape route and the fire point.
In this step, after the end point is vertically mapped on the horizontal plane where the start point is located to form the mapping end point, before the start point and the horizontal mapping point are connected to form the escape straight line, the method further includes the following steps: and judging whether the horizontal plane where the mapping end point is located or the lower part of the horizontal plane has smoke or not, and if so, excluding the mapping end point.
That is, when a person escapes from a staircase with smoke, it is obviously not suitable for escape, because smoke is one of the important factors causing death of the person in a fire. The smoke does not affect the person passing the stairs, and the smoke needs to be prevented from passing the stairs.
S4: and vertically mapping the fire point on a horizontal plane where the starting point is positioned to form a fire mapping point, and calculating the shortest distance from the fire mapping point to the escape straight line.
In an embodiment of the present invention, the shortest distance between the fire mapping point and the escape point is used as a reference for whether the escape route is too close to the fire point in the later period.
S5: and after the escape straight line with the vertical distance smaller than the preset distance threshold value is eliminated, selecting the mapping terminal point corresponding to the shortest escape straight line as the final terminal point.
In an embodiment of the present invention, the distance threshold is used as a determination of whether the fire point is too close to the escape straight line. If the vertical distance is less than the distance threshold, this may result in the escape route being too close to the fire point or even passing through the fire point, and the corresponding escape straight line needs to be eliminated. In one case, the possible fire point is far from the vertical distance of the starting point, and the mapping judgment is calculated excluding the vertical distance because the fire burns upward in the case of fire, and in order to completely exclude the case where the fire spreads upward, the safest escape route is also considered as a design initiative when the case is too close to the fire point.
S6: according to the horizontal channel layout of the horizontal plane where the starting point is located, the escape route is guided to the final point along the horizontal channel by taking the point far away from the fire disaster as a rule.
In the embodiment of the invention, when the escape straight line coincides with the horizontal channel, the escape route is the escape straight line. When the escape straight line fishing horizontal channels coincide, the escape route is a broken line.
As shown in fig. 2, the quadrangular prism in the figure is simulated as a building. In the figure, point a represents the end point, point B represents the fire point, point C represents the start point, and point D represents the presence of smoke. Since point D is below the plane of point B, point a below point D is excluded.
As shown in fig. 3, is a map of point A, B, C, D on the same horizontal plane. Line segment AC is the escape straight line. a. B is the shortest distance from the point B to the escape straight line respectively. And b is smaller than a preset distance threshold value, so that the corresponding escape straight line of a is selected. And guiding the escape route for a rule according to the distance from the fire point, wherein the planned escape route is the direction indicated by an arrow.
The implementation principle of the embodiment is as follows: by connecting the starting point and the end point and comparing the fire points on the horizontal plane, the route which is possibly close to the fire point is eliminated, and then the shortest route is screened out, so that people can safely and quickly escape from the building with the fire.
In an embodiment, as shown in fig. 4, the present invention further provides a safe evacuation system for accurately calculating an escape route based on a network, the system comprising:
the system comprises:
the starting point module is used for indicating an escape route at the door of a room;
the terminal module is used for indicating an escape exit;
the fire detection module is used for detecting a fire point;
the escape straight line generating module is used for vertically mapping the end point on a horizontal plane where the starting point is located to form a mapping end point, and connecting the starting point with the horizontal mapping point to form an escape straight line;
the vertical distance calculation module is used for vertically mapping the fire point on a horizontal plane where the starting point is located to form a fire mapping point and calculating the shortest distance from the fire mapping point to the escape straight line;
the system comprises a final point determining module, a mapping terminal point and a final point determining module, wherein the final point determining module is used for selecting the mapping terminal point corresponding to the shortest escape straight line as the final point after excluding the escape straight line of which the vertical distance is smaller than a preset distance threshold;
and the escape route module is used for guiding the escape route to the final point along the horizontal channel by taking the far fire point as a rule according to the horizontal channel layout of the horizontal plane where the starting point is located.
And the corridor smoke detection module is used for judging whether smoke exists on the horizontal plane or below the horizontal plane of the mapping end point, and if yes, the mapping end point is eliminated.
And the exit detection module is used for judging whether the vertical corridor exit corresponding to the end point is smooth or not, and if not, the end point is eliminated.
The starting point module is an evacuation sign with a direction indication function, and the finishing point module is a safety exit sign.
The system also comprises a safety passage indicator board which is used for indicating a passage according to the escape route and also has a direction indicating function. I.e. at least bi-directional.
Fig. 5 shows a topological relationship diagram of the exit sign, the escape sign and the evacuation sign. Wherein, 1 stands for the exit sign, 2 stands for the escape route sign, and 3 stands for the evacuation sign. When a fire disaster at a certain point is detected, the shortest path to the escape exit is calculated according to the weight by taking the intelligent evacuation sign as a starting point, and the shortest path cannot contain the fire disaster point.
For the specific limitation of the safety evacuation system based on the network point type accurate escape route calculation, reference may be made to the above limitation of the safety evacuation method based on the network point type accurate escape route calculation, and details are not repeated herein. All or part of the modules in the safety evacuation system based on the network point type accurate escape route measurement and calculation can be realized through software, hardware and the combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. A safe evacuation method for accurately measuring and calculating an escape route based on a network point type is characterized by comprising the following steps:
s1: setting a starting point at each room doorway in a building, and setting a terminal point at the bottom of a vertical corridor of the building;
s2: detecting a fire point;
s3: vertically mapping the end point on a horizontal plane where the starting point is located to form a mapping end point, and connecting the starting point with the horizontal mapping point to form a run-away straight line;
s4: vertically mapping the fire point on a horizontal plane where the starting point is located to form a fire mapping point, and calculating the shortest distance from the fire mapping point to an escape straight line;
s5: after the escape straight line with the vertical distance smaller than the preset distance threshold is eliminated, selecting the mapping terminal point corresponding to the shortest escape straight line as the final terminal point;
s6: according to the horizontal channel layout of the horizontal plane where the starting point is located, the escape route is guided to the final point along the horizontal channel by taking the point far away from the fire disaster as a rule.
2. The safe evacuation method based on the net-point type accurate escape route calculation of claim 1, further comprising: in step S3, after the end point is vertically mapped on the horizontal plane where the start point is located to form the mapping end point, the method further includes the following steps before connecting the start point and the horizontal mapping point to form the escape straight line:
and judging whether the horizontal plane where the mapping end point is located or the lower part of the horizontal plane has smoke or not, and if so, excluding the mapping end point.
3. The safe evacuation method based on net-point accurate escape route calculation of claim 1, further comprising the following steps after step S1 and before step S2:
and judging whether the vertical corridor exit corresponding to the terminal is smooth or not, and if not, excluding the terminal.
4. A safe evacuation system based on accurate calculation escape route of dot mode, characterized in that, the system includes:
the starting point module is used for indicating an escape route at the door of a room;
the terminal module is used for indicating an escape exit;
the fire detection module is used for detecting a fire point;
the escape straight line generating module is used for vertically mapping the end point on a horizontal plane where the starting point is located to form a mapping end point, and connecting the starting point with the horizontal mapping point to form an escape straight line;
the vertical distance calculation module is used for vertically mapping the fire point on a horizontal plane where the starting point is located to form a fire mapping point and calculating the shortest distance from the fire mapping point to the escape straight line;
the system comprises a final point determining module, a mapping terminal point and a final point determining module, wherein the final point determining module is used for selecting the mapping terminal point corresponding to the shortest escape straight line as the final point after excluding the escape straight line of which the vertical distance is smaller than a preset distance threshold;
and the escape route module is used for guiding the escape route to the final point along the horizontal channel by taking the far fire point as a rule according to the horizontal channel layout of the horizontal plane where the starting point is located.
5. The network point-based precise escape route calculation safety evacuation system according to claim 4, further comprising:
and the corridor smoke detection module is used for judging whether smoke exists on the horizontal plane or below the horizontal plane of the mapping end point, and if yes, the mapping end point is eliminated.
6. The network point-based precise escape route calculation safety evacuation system according to claim 4, further comprising:
and the exit detection module is used for judging whether the vertical corridor exit corresponding to the end point is smooth or not, and if not, the end point is eliminated.
7. The safety evacuation system based on the dot-type precise escape route calculation of claim 4, wherein the starting point module is an evacuation sign with a direction indication function.
8. The safety evacuation system based on the dot-based accurate escape route calculation of claim 7, wherein the destination module is a safety exit sign.
9. The system for safe evacuation based on net-point accurate estimation of escape route according to claim 8, further comprising a safe passage indication board for indicating the passage according to the escape route.
10. The safety evacuation system based on the dot-type accurate escape route calculation of claim 9, wherein the evacuation sign, the exit sign and the exit sign are all installed with a fire detection sensor.
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