CN112116770A - Fire alarm escape route indication method and device - Google Patents
Fire alarm escape route indication method and device Download PDFInfo
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- CN112116770A CN112116770A CN202011138394.9A CN202011138394A CN112116770A CN 112116770 A CN112116770 A CN 112116770A CN 202011138394 A CN202011138394 A CN 202011138394A CN 112116770 A CN112116770 A CN 112116770A
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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
- G08B7/062—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 indicating emergency exits
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Abstract
The invention relates to a fire alarm escape route indication method and a fire alarm escape route indication device. The method comprises the following steps: determining the influence range of the ignition point; determining a point at which the evacuation channel is affected by the fire; determining a feasible route from a point adjacent to the point affected by the fire on the evacuation channel to an exit point as an escape route; and indicating the determined escape route on the evacuation route.
Description
Technical Field
The invention relates to fire alarm, in particular to a fire alarm escape path indicating method.
Background
The rapid evacuation in the event of a fire is of no doubt very important. The existing escape indication method usually depends on a temporary luminous indicator board on a wall or the ground, the indication direction is fixed, and the place where the fire happens is not considered, so that unreasonable or even dangerous indication can be realized in some cases. At present, a method for manually informing an escape route is adopted, but the manual planning of the escape route has time delay and is generally inaccurate.
Disclosure of Invention
The present invention has been made in view of the above circumstances, and it is an object of the present invention to mitigate or eliminate one or more of the problems associated with the prior art.
According to one aspect of the invention, a fire alarm escape route indication method is provided, which comprises determining an influence range of a fire point; determining a point at which the evacuation channel is affected by the fire; determining a feasible route from a point adjacent to the point affected by the fire on the evacuation channel to an exit point as an escape route; and indicating the determined escape route on the evacuation route.
According to one embodiment, the method further comprises determining the merits of the escape route after bifurcation at a bifurcation point of the determined escape route, and displaying the merits of the bifurcated escape route at the bifurcation point.
Further, the quality of the branched escape route is judged according to one or more of the flux of the branched escape route, the number of points possibly affected by fire, and the length of the escape route.
Still further, the point that is likely to be affected by the fire is a point within a predetermined distance from a boundary of the fire-affecting range.
According to one embodiment, the flux of the escape route after a bifurcation is determined by: obtaining an image of the escape route after bifurcation; identifying the image, and determining the number and distribution of the persons appearing in the image; the flux of the escape route after bifurcation is determined according to the number and distribution of people and the width of the passage.
According to one embodiment, the evacuation channel is formed by a number of points at predetermined distances along its extension, the point affected by fire being a point within the fire-affected zone.
According to one embodiment, the determined escape route is indicated on the evacuation channel with an indication device capable of indicating directions to the respective possible exit points.
According to another aspect of the present invention, there is provided a fire escape route indicating device including: a fire point influence range determination unit for determining a fire point influence range; an influence point determination unit for determining points of the evacuation route affected by the fire; an escape route determination unit for determining a feasible route from a point immediately adjacent to the point affected by the fire to an exit point on the evacuation route as an escape route; and an escape route indicating unit for causing an indicating device capable of indicating directions to the respective possible exit points to indicate the determined escape route on the evacuation route.
According to one embodiment, the fire escape route indicating apparatus further includes a quality comparison unit that determines a quality of the escape route diverged at a divergence point of the determined escape route, and the escape route indicating unit further displays the quality of the diverged escape route at the divergence point.
According to one embodiment, the superiority/inferiority comparing unit judges the superiority/inferiority of the branched escape route based on one or more of a flux of the branched escape route, the number of points that may be affected by fire, which are points within a predetermined distance from a boundary of the fire-affected zone, and a length of the escape route, which are points within the fire-affected zone, the evacuation route being formed of a plurality of points spaced a predetermined distance along an extending direction thereof.
According to one embodiment, the superiority and inferiority comparing unit determines the flux of the escape route after bifurcation by using an escape flux determining unit, the escape flux determining unit including: the image determining unit is used for obtaining an image of the escape route after bifurcation; the people flow determining unit is used for identifying the image and determining the number and distribution of the people appearing in the image; and the flow determining unit is used for determining the flux of the escape route after the bifurcation according to the number and distribution of people and the width of the passage.
The invention also relates to a computer storage medium storing computer software which, when executed, enables a computer or processor to carry out the methods or steps of the invention or to form an apparatus of the invention. The storage medium may be a hard disk, a floppy disk, a flash memory, an optical disk, or other tangible storage medium.
According to some embodiments of the present invention, since the point in the immediate vicinity of the point affected by the fire is used as a starting point for determining the escape route and the escape route thus determined is displayed, it is possible to facilitate evacuation of people on the entire evacuation pathway.
According to some embodiments of the present invention, the evacuation channels can be utilized very efficiently depending on the situation of fire.
According to some embodiments of the invention, people can be rapidly indicated to evacuate according to the condition of fire, and the fire danger is reduced.
The technical solution of the present invention is not required to have all the above advantageous effects at the same time.
Drawings
The invention may be better understood with reference to the following drawings. The drawings are merely schematic and are not drawn to scale and are not intended to limit the scope of the invention. In the drawings, there is shown in the drawings,
fig. 1 is a schematic view of a fire escape route indicating method according to an embodiment of the present invention;
FIG. 2 shows a schematic view of the range of the effect of a fire;
fig. 3 shows a schematic view of an evacuation channel;
fig. 4 shows a schematic illustration of determining an escape route;
fig. 5-8 show diagrams of the escape route found;
fig. 9 shows a schematic view of different point displays of the escape route;
fig. 10 is a schematic view of an escape route indicating method according to another embodiment of the present invention; and
fig. 11 is a schematic view of an escape route indicating device according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The illustrations are exemplary only, are not intended to limit the scope of the invention, nor are they intended to describe components and steps that are not helpful in understanding the invention.
Fig. 1 is a schematic view illustrating a fire escape route indicating method according to an embodiment of the present invention. As shown in fig. 1, a fire escape route indicating method according to an embodiment of the present invention first determines an influence range of a fire point at step S101. According to one embodiment, the location of the fire point and the extent of the impact of the fire point are obtained by sensors in the event of a fire. Fig. 2 shows a schematic diagram of the range of the effect of the fire point. As shown in FIG. 2, the center point of the circle is the fire position, and the circle is the influence range of the fire. It should be noted that the ignition point is not necessarily the center of the influence range, nor is the ignition point influence range necessarily a circle. The extent of the fire point effect is influenced by the environment (e.g., walls, doors, etc.). The fire point influence range can be determined according to the data of the smoke sensor and the heat sensor. The effect of a fire point in the room on the passage out of the room can be further determined according to the material, thickness, etc. of the walls and doors. The image may also be used to determine the range of influence.
Next, a point at which the evacuation route is affected by fire is determined at step S102. Evacuation channels such as hallways, stairs, etc. of hotels may communicate the passage of evacuation exit points. An evacuation exit point such as a front door of a hotel or other door to the outside. According to one embodiment of the invention, the evacuation channel is configured to be composed of a plurality of points at predetermined distances along its extension direction. The predetermined distance is, for example, 1 meter, preferably, for example, between 0.75 meter and 1.5 meters. Fig. 3 shows a schematic view of an evacuation channel thus set. The points spaced apart by a predetermined distance in fig. 3 constitute evacuation channels. Returning to fig. 2, in fig. 2, there is a point that is affected by the fire. Distances from various points of the evacuation channel to the fire point can be calculated, and points with distances smaller than the fire point influence radius are within the fire influence range.
Then, at S103, a feasible route from a point immediately adjacent to the point affected by the fire to the exit point is determined as an escape route. Fig. 4 shows a schematic illustration of the determination of an escape route. As shown in fig. 4, the box represents a point affected by fire on the evacuation passageway, the five stars represent points (immediately adjacent points) on the evacuation passageway closest to the point affected by fire, and the triangle represents the exit point. The close proximity point refers to a point separated from the point affected by the ignition point by the above-mentioned predetermined distance of one unit. According to one embodiment, a set near array of nearest points, a set exit array of exit points, and a set base array of all remaining points affected by the fire point may be removed. And circularly traversing the near array, taking the point of the near array as the first point of the escape route, then traversing the base array, finding the point which is at the same distance (for example, 1 meter) as the first point, adding the point into the escape route, and if two points are at the same distance (for example, 1 meter), performing binary tree traversal, and comparing the newly added point with the point in the exit array each time. If the point in the exit array indicates that the exit has been reached, the route is an escape route. Repeating the steps, all available escape routes can be found out. Fig. 5-8 show diagrams of the escape route found. As shown in fig. 5 to 8, in the case of fig. 2 and 4, 4 escape routes can be obtained.
Then, at step S104, an escape route is indicated on the evacuation passageway using the escape route indicating device. The escape route indicating device can be arranged on the ground of the evacuation channel and can also be arranged on the walls at two sides of the evacuation channel. According to one embodiment, the escape indicating device should be capable of indicating a direction to each possible point of egress. For example, in the example shown in fig. 9, it is almost impossible for point a to run from point a to other exit points because it is particularly close to the upper left exit point. And thus may merely provide an arrow or the like pointing to the exit point. The arrow may be realized by a plurality of diodes or the like, for example. Of course, to cope with extreme cases, or because of cost considerations for uniform manufacturing of the product, indications such as arrows or the like directed to other exit points may also be provided at point a. For point B, an arrow indicating two directions is required, and for point C, three directions are required. According to one embodiment, an escape route indicator is arranged at each point of the evacuation route. When the escape route is determined as shown in fig. 5 to 8, point a indicates an arrow exiting to the upper left, point B indicates an arrow toward the right, and point C indicates arrows upward and downward. The escape route indicating devices may, but need not, correspond one-to-one to points on the set evacuation path. The escape route indicating means provided at each set point on the evacuation route is an indicating means capable of indicating the direction to each possible exit point for that point at that point. Each escape route indicating device may include two or more parts, for example, one part disposed on the left side wall of the evacuation passageway to indicate an exit point in one direction, and the other part disposed on the right side wall of the evacuation passageway to indicate an exit point in the other direction.
Fig. 10 is a schematic view illustrating an escape route indicating method according to another embodiment of the present invention. Compared with the embodiment of fig. 1, the step S105 of determining the quality of the route (also called bifurcation route) after adding the intersection point (also called bifurcation point) of the escape route. For example, at point C, one can escape either to the exit point shown in the upper left of the figure or to the exit point shown in the lower left of the figure (see fig. 9). At this time, the two escape routes (branch routes) are compared to determine the quality of the escape route. According to one embodiment, the determination of the quality is made according to the flux of the different escape routes, i.e. how many people can pass. For example, if the escape route to the exit point shown to the upper left has already more people, the flux is smaller than the escape route to the exit point shown to the lower left with fewer people. People can be identified in the images by acquiring the images of the escape routes after the bifurcation, so that the number and the distribution of people on the escape routes after the bifurcation are determined; the flux of the escape route after bifurcation is determined according to the number and distribution of people and the width of the passage.
Images of the escape route may be obtained by cameras monitoring the directions of the respective escape routes at the diverging points of the escape routes. If the escape route has a bend, a camera is also provided at the bend to obtain an image of the escape route segment after the bend. According to another embodiment, the quality of the escape route is determined according to how many points that may be affected by a fire. For example, in the escape route shown in fig. 9 leading to the exit point shown in the upper left, point D and point E are both closer to the fire point influence range, which is a point that may be influenced by fire. There is no such point on the escape route leading to the exit point shown in the lower left, so that the escape route leading to the exit point shown in the lower left is better than the escape route leading to the exit point shown in the upper left. The point that may be affected by the fire may be, for example, a point within a predetermined distance from the periphery of the fire range. The quality of the escape route can also be determined according to the length of each escape route. For example, the length of the escape route leading to the exit point shown in the upper left is 6 units (6 points), and the length of the escape route leading to the exit point shown in the lower left is 8 units (8 points), so that the escape route leading to the exit point shown in the upper left is more preferable. The flux of the diverging route, the number of points that may be affected by fire, and the length of the escape route can be comprehensively judged. For example, by giving different coefficients to the respective factors.
According to this embodiment, when the escape route instruction is performed at step S104, the priority of the escape route is also simultaneously instructed. For example, different intensities of light may be used to indicate priority, or different colors of light may be used to indicate priority.
Fig. 11 is a schematic view of a fire escape route indicating device according to an embodiment of the present invention. As shown in fig. 11, the fire escape route indicating apparatus according to one embodiment of the present invention includes: a fire point influence range determination unit 101 for determining a fire point influence range; an impact point determination unit 102 for determining a point of the evacuation route affected by a fire; an escape route determination unit 103 for determining a feasible route from a point immediately adjacent to the point affected by the fire to an exit point on the evacuation route as an escape route; and an escape route indicating unit 104 for indicating that an indicating device capable of indicating a direction to each possible exit point indicates the determined escape route on the evacuation route.
According to an embodiment, as shown in fig. 11, the fire escape route indicating apparatus may further include a goodness comparison unit 105, the goodness comparison unit 105 determining goodness of the escape route after the determined divergence point of the escape route diverges. The escape route indicating unit 104 also displays the merits of the escape route after branching at the branching point. Characters can be displayed to indicate the quality of the escape route after bifurcation.
According to one embodiment, the superiority/inferiority comparing unit 105 judges the superiority/inferiority of the branched escape route based on one or more of the flux of the branched escape route, the number of points that may be affected by fire, which are points within a predetermined distance from the boundary of the fire-affected zone, the evacuation route being composed of many points that are a predetermined distance apart in the extending direction thereof, and the length of the escape route, which are points outside the fire-affected zone but within a predetermined distance.
According to one embodiment, the quality comparison unit 105 determines the flux of the escape route after bifurcation by using an escape flux determination unit, for example, comprising: the image acquisition unit is used for acquiring an image of the escape route after bifurcation; the people flow determining unit is used for identifying the image and determining the number and distribution of the people appearing in the image; and the flow determining unit is used for determining the flux of the escape route after the bifurcation according to the number and distribution of people and the width of the passage.
The image determination unit may receive an image from the image pickup device. The camera device may include a plurality of cameras (including two) disposed at the bifurcation point. The cameras are used for respectively obtaining images of the escape routes after the branches are formed. Human body or human body part (e.g., human head) recognition may be performed using various methods now known or known in the future to determine the number and distribution of people.
The description of the method can be used to understand the apparatus to which the invention relates. The description of the apparatus may also be used to understand the methods and steps of the present invention.
The steps and means of the present invention may be performed by specific hardware components or by software in conjunction with hardware components. For example, it may be implemented using a field programmable gate array, a programmed processor or application specific chip, etc. A field programmable gate array, a programmed processor or application specific chip or the like may work with a memory or the like to implement the steps and means.
The upper left, lower left, right and the like of the present invention are merely set for convenience of description in conjunction with the drawings, and do not represent the orientation of the environment in which the present invention is actually applied.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Accordingly, any modification, equivalent replacement, improvement or the like made without departing from the spirit and scope of the present invention shall be included in the protection scope of the present invention. Further, it is intended that the following claims cover all such modifications and changes as fall within the true scope and boundary of the claims or the equivalents thereof.
Claims (10)
1. A fire escape route indication method is characterized by comprising the following steps:
determining the influence range of the ignition point;
determining a point of the evacuation channel affected by the fire;
determining a feasible route from a point adjacent to the point affected by the fire on the evacuation channel to an exit point as an escape route; and
indicating the determined escape route on the evacuation route.
2. The fire escape route indication method according to claim 1, further comprising determining the merits of the escape route after divergence at a divergence point of the determined escape route, and displaying the merits of the diverged escape route at the divergence point.
3. The fire escape route indicating method according to claim 2, wherein the quality of the diverged escape route is determined according to one or more of the flux of the diverged escape route, the number of points that may be affected by fire, and the length of the escape route.
4. The fire escape route indicating method according to claim 3, wherein the point that is likely to be affected by a fire is a point within a predetermined distance from a boundary of the fire-affected zone.
5. The fire escape route indicating method according to claim 3, wherein the flux of the escape route after bifurcation is determined by:
obtaining an image of the escape route after bifurcation;
identifying the image, and determining the number and distribution of the persons appearing in the image;
the flux of the escape route after bifurcation is determined according to the number and distribution of people and the width of the passage.
6. The fire escape route indicating method according to claim 1, wherein the evacuation path is formed of a plurality of points spaced apart by a predetermined distance in an extending direction thereof, and the point affected by the fire is a point within the fire-affected range.
7. The fire escape route indicating method according to claim 1, wherein the determined escape route is indicated on the evacuation route using an indicating device capable of indicating a direction to each possible exit point.
8. A fire escape route indicating device, comprising:
a fire point influence range determination unit for determining a fire point influence range;
an influence point determination unit for determining points of the evacuation route affected by the fire;
an escape route determination unit for determining a feasible route from a point immediately adjacent to the point affected by the fire to an exit point on the evacuation route as an escape route; and
an escape route indicating unit for indicating a plurality of indicating devices on the evacuation route capable of indicating directions to respective possible exit points to indicate the determined escape route on the evacuation route.
9. The fire escape route indicating device according to claim 8, further comprising a goodness comparison unit that determines goodness of the escape route diverged at a divergence point of the determined escape route, the escape route indicating unit further displaying goodness of the diverged escape route at the divergence point.
10. The fire alarm escape route indicating device according to claim 9, wherein the superiority/inferiority comparing unit determines the superiority/inferiority of the diverged escape route based on one or more of a flux of the diverged escape route, the number of points that may be affected by fire, the length of the escape route, the points that may be affected by fire being points within a predetermined distance from a boundary of the fire-affected zone, the evacuation passageway being configured to be composed of a plurality of points at a predetermined distance along an extending direction thereof, the points that are affected by fire being points within the fire-affected zone, and the indicating device being in one-to-one correspondence with the set points that constitute the evacuation passageway.
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| CN112116770B (en) | 2022-07-12 |
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