KR101884667B1 - Evacuation Path Navigation System And Method On Resilience Maximizing - Google Patents

Abstract

The present invention relates to an evacuation path navigation system capable of maximizing resilience and a method thereof. According to the present invention, the system comprises a database unit which stores an electronic map including link or node information defining types of pedestrians who can move; and a path search unit which searches for an evacuation path comprising links and nodes through which a type of a pedestrian, which a user belongs to, can move. According to the present invention, the evacuation path navigation system capable of maximizing resilience has a merit of guiding each user or each user group to an optimal evacuation path in accordance with the type of walking capability of a person to evacuate, a merit of searching for an evacuation path again and providing guidance when evacuation through a relevant path is dangerous since the state of a link or a node included in the searched evacuation path has changed, and a merit of supporting a user, who has difficulty in independent escape, to escape while receiving help from others or cooperating with others by generating a group of people to escape.

Description

[0001] The present invention relates to an evacuation route guidance system and method for maximizing resilience,

The present invention relates to an evacuation route guidance system and method, and a system and method for guiding an optimal evacuation route in accordance with a type of walking ability of a user.

In general, the navigation system provides a function of searching for the shortest time route, the shortest distance route, or the lowest cost route from the source to the destination using the map information and the GPS information. And it provides real-time traffic information through the mobile network and automatically redirects and guides the route according to the road conditions.

There is also provided a service for guiding a walking route for a pedestrian using a smartphone as well as a navigation for a vehicle. Indoor navigation service is also available as indoor positioning can be done inside the building or underground using beacon, Wi-Fi, Li-Fi, and the like.

Unlike general navigation service, which sets up a destination from a user and guides the user through a route, it enables users to quickly and safely evacuate from a disaster area when a disaster such as fire, flood, collapse, gas leak, A method and system for guiding disaster evacuation routes to maximize recovery resilience due to disasters are being studied.

Korean Patent Laid-Open Publication No. 2016-0018027 discloses a configuration for preventing a congestion caused by crossing of evacuation lines of a plurality of users while guiding the evacuation route by grasping the surrounding situation of the user terminal in the event of a disaster.

On the other hand, even if the same route is used, it may take a long time to travel depending on the walking ability, or it may be impossible to travel in severe cases. In normal times, even if the travel time is delayed, there is no big problem, but in case of evacuation, unfortunate casualties may occur.

Korean Patent Laid-Open Publication No. 2016-0018027 (public date: 2016.02.17)

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a system and method capable of guiding an optimal evacuation route for each user or user group in accordance with the walking ability type.

According to another aspect of the present invention, there is provided an evacuation route guidance system including a database unit for storing an electronic map including link information or node information defining a movable pedestrian type, And a route search unit searching for a route to be evacuated.

The system may further include an information collecting unit for collecting state information of a link or a node included in the electronic map, and a controller for changing the movable pedestrian type of the link or the node by reflecting the collected state information .

The path searching unit may search for the evacuation path by reflecting the link or the node where the movable pedestrian type is changed.

Wherein the system searches for a evacuation route composed of a movable link and nodes when a pedestrian group to which the large group of pizzas belongs is created, Path can be provided.

The path search unit preferentially searches for an evacuation path in accordance with a predetermined condition among the evacuation paths configured by the user or the group of nodes capable of moving the large group of pizzas and if the number of persons searched by the same evacuation path is equal to or greater than a predetermined reference, Considering the type of pedestrian, it is possible to provide a bypass route to some of the above personnel.

The path searching unit may calculate the required evacuation time according to the searched evacuation route by applying the user or the type of the pedestrian to which the large pizza group belongs.

According to another aspect of the present invention, there is provided a method for guiding an evacuation route, comprising: storing an electronic map including a link or node information defining a movable pedestrian type; And searching for a evacuation path comprising the node.

The method comprising the steps of: if the state of a link or node included in the electronic map has changed, changing the movable pedestrian type of the link or the node, and evacuating the link or node reflecting the changed pedestrian type And searching the path again.

According to the present invention, there is an advantage in that an optimal evacuation route can be guided by a user or a user group in accordance with the walking ability type of the large pizza.

In addition, if the state of the link or node included in the retrieved evacuation route is changed and it is dangerous to continue evacuation to the corresponding path, there is an advantage that the evacuation route can be retrieved and guided.

Also, there is an advantage that a user who is difficult to evacuate independently by creating a large pizza group can help him or her to evacuate while being assisted or cooperated with others.

1 is a block diagram showing a configuration of a evacuation route guidance system according to the present invention.
2 is a flowchart illustrating an operation of the evacuation route guidance system according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention.

1 is a block diagram showing a configuration of a evacuation route guidance system according to the present invention.

Referring to FIG. 1, the evacuation route guidance system according to the present invention may include user terminals 100a, 100b, 100c, ..., 100n, a route guidance server 200, a sensor 300 and a camera 400 .

The user terminals 100a, 100b, 100c, ..., 100n, the route guidance server 200, the sensor 300 and the camera 400 can exchange various information and data through the communication network 10. [

The communication network 10 may be a local area network (LAN), a metropolitan area network (MAN), a wide area network (WAN), an internet, a 3G, And may include various data communication networks including mobile communication network, Wi-Fi, Li-Fi, Wireless Broadband Internet (WIBRO) or Long Term Evolution (LTE) Any communication method may be used.

The user terminals 100a, 100b, 100c, ..., 100n may be memory means such as a smart phone, a tablet PC, a personal digital assistant (PDA), a web pad, And a terminal equipped with a microprocessor and equipped with a mobile communication function with computing capability. Various applications can be installed to provide various services to the user.

In particular, an application (hereinafter referred to as "evacuation route guidance application") for providing an evacuation route guidance service according to the present invention is installed in the user terminals 100a, 100b, 100c, ..., 100n so that fire, earthquake, terror, When a disaster such as spraying or spillage occurs, the user can be guided to the evacuation route.

The evacuation route guidance app can set the pedestrian type of the user from the user. The pedestrian type can be classified as 'self-walking', 'not able to walk', and 'large pizza group' as shown in Table 1 below.

In addition, the type of 'able to walk' can be subdivided into 'youth and adults (10 ~ 50)', 'children (under 10)', 'elderly people (over 60)' and 'expectant mothers'. Likewise, the type of 'unable to walk' can be divided into 'wheelchair users', 'visually impaired' and 'other leg injured'. The 'large pizza group' can be distinguished by considering the combination of the pedestrian type of the user included in the group.

Users who are unable to walk on their own can be very difficult to evacuate independently in the event of a disaster. On the other hand, it may be difficult to evacuate children, elderly people, pregnant women, etc. Therefore, it is possible to group users who are within a certain range when a disaster occurs, create a large group of pizzas, and guide them to the same evacuation route. In this way, the user can be assisted by the user who can walk freely while the user is walking on the same route, or the child, the elderly person, the pregnant woman, etc. can be helped by the youth or the adult. Of course, users belonging to the same pizza group may be evacuated while helping others.

The route guidance server 200 can create a large pizza group in consideration of the current position of the user transmitted from the evacuation route guidance app and the pedestrian type of the user. Of course, if a certain number of people have already departed from the already created large pizza group, the pedestrian type of the large pizza group may be changed in consideration of the pedestrian type of the remaining persons.

Classification Pedestrian type code Justice





Possible to walk on magnetic force Youth and Adults (10 ~ 50) A It is able to move by magnetic force, and it can move at high speed in case of emergency and can move without obstacles without difficulty. Emergency escape routes (windows, rooftops) can be used instead of ordinary routes in emergency situations Children (under 10 years old), elderly (over 60 years old), pregnant women B It is possible to move by magnetic force, but it is not possible to run at high speed in case of emergency or to avoid the obstacles, and it is only possible to walk on a line that does not overdo it. Paths that are at risk in path traversal are those that need to be excluded





No self-walking


Wheelchair users C It is possible to move to the same level as A in a flat area over a certain width that the wheelchair can move, but it can not be moved in a staircase or a narrow space. Visually impaired D An assistant's help is absolutely necessary in the event of a disaster, and it is necessary to adjust the speed of movement as it is assumed to move with help. There are also cases where the type and level of the obstacle can not be met Other leg injured E As with D, the help of the helper is required but the situation can be judged by the self.



Great pizza group
Including A and optionally B, D, and E F A group of one or more persons belonging to B, D, and E is assigned to one or more persons. Including B, optionally including D, E G A group of one or more persons with B and one or more persons belonging to D and E, the moving speed between B and D Includes A and C H There is at least one person in A, and the group with at least one person belonging to C is equal to the moving speed of A on the flat ground. In case of other obstacles, the moving speed is equal to E

Table 1 exemplifies the pedestrian type classification, and the pedestrian type, the pedestrian type, and the like can be defined and applied differently according to the embodiment.

The user terminals 100a, 100b, 100c,..., 100n can be located on a GPS-based, beacon-based, Wi-Fi based or Li-Fi based location and can provide the evacuation route guidance app. The evacuation route app can use GPS-based location information outdoors, and can use beacon-based, Wi-Fi-based, or Li-Fi-based location information in rooms that can not receive GPS signals.

In the event of a disaster, the user can execute the evacuation route guidance application and request the route guidance server 200 for the evacuation route. Of course, when a disaster occurrence message is received from the route guidance server 200 in a pushing manner, the evacuation route guidance app is automatically executed in the user terminals 100a, 100b, 100c, ..., 100n, You can also implement a guide request.

The evacuation path request may include information about the current location of the user terminal and the pedestrian type of the user. The evacuation route guidance application can receive the evacuation route information from the route guidance server 200 and guide the user. The user terminals 100a, 100b, 100c, ..., 100n can display the evacuation path information on the screen or output it by voice.

The route guidance server 200 performs a function of searching for and providing an appropriate evacuation route to the user upon request of the evacuation route guidance app. The route guidance server 200 may include a database unit 210, a route search unit 230, an information collecting unit 250, and a control unit 270.

The database unit 210 may store various information and data related to the operation of the route guidance server 200.

Specifically, the database unit 210 may store the member information of the user who subscribed to the evacuation route guidance service. The member information may also include pedestrian type information of the user.

Also, the database unit 210 may store an electronic map of an evacuation route guidance service target area. When the large pizza group is created, the database unit 210 may also store user information and pedestrian type information belonging to the large pizza group.

The electronic map includes information about a passage through which a person can move. In particular, the electronic map according to the present invention may include not only a stairway, a hallway, an elevator, and an escalator, which are normally used by a person, but also a passage through a evacuation facility such as a window,

The electronic map may include link node information in which a movable pedestrian type is defined. Here, a node means a place where a speed change occurs when a person moves, and a link can mean a line connecting a node and a node. For example, a node may be a starting point and an end point of a corridor in a building, an elevator gate for each floor, a stairway viewpoint and an end point for each floor, and the node may be a hallway, a stairway, an elevator hall,

The link node information can be classified into node information and link information.

The node information may include a node ID, a node type, a node name, a movable pedestrian type, and the like. The link information may include a link ID, a starting node ID, a terminating node ID, a link name, a movable pedestrian type, and the like.

The node ID, the link ID, the node name, the link name, and the like may be given by appropriate criteria. The node type and the link type can be given information that can distinguish the stairs, the hall, the elevator, the escalator, the window, the stiffness, and the like. The movable pedestrian type may be set to a pedestrian type code as illustrated in Table 1, or may be set to a status code as illustrated in Table 2 below.

Table 2 is a link node status table in which an enterable pedestrian type is defined according to an embodiment of the present invention.

code
Justice Enterable pedestrian type and mobility A B C D E F G H
end

It is impossible for people to pass

X
X
X
X
X
X
X
X
I
It is difficult to move, but in the case of a solid body,
50
X
X
X
X
X
X
X
All

It may take a while to get help from the side, but you can go beyond
80
70
40
60
50
75
65
50
la
No obstacle, easy to pass

100
90
100
80
70
95
95
100

Referring to Table 2, the link node status table includes not only the types of pedestrians that can enter a node or link of that type, but also information about the movement ability (or movement speed) of each pedestrian type as it passes through that link or node .

The link node information and the movable pedestrian type described herein are merely examples, and it is possible to distinguish each link and node included in the electronic map, and to set a pedestrian type that can be moved for each link and node, It is acceptable.

The path searching unit 230 can search for a path and a node that are included in the disaster occurrence area where the user is located in the event of a disaster, and the escape route composed of links and nodes to which the user belongs can be moved. The path search unit 230 may calculate the required evacuation time by applying the pedestrian type when the user evacuates the detected path.

The route searching unit 230 can preferentially search for the evacuation route corresponding to the shortest time or the shortest distance among the evacuation routes to which the user belongs.

However, if a large number of people are mobilized at the same time on the same evacuation route, congestion may occur and accidents may occur or the evacuation may be delayed. Therefore, if the same evacuation route is not less than a predetermined standard, it is possible to search for and provide a bypass evacuation route to some of the personnel considering the pedestrian type. For example, the user of the wheelchair is guided to search for a route consisting of a link or a node corresponding to the code "a" in Table 2 and guidance is given to a youth or an adult by a detour including a link or a node corresponding to the code " You can navigate and guide the path.

On the other hand, when a large pizza group is created, the route searching unit 230 can search for a route to which the pedestrian type to which the corresponding pizza group belongs can be moved and nodes. For example, if an adult and a wheelchair user who can walk in a normal manner belong to one large pizza group, the user may search for a route through which the wheelchair user can travel, although it may be a detour route for an adult. On the other hand, although the wheelchair user can not move alone due to a large degree of inclination, an adult may search for and provide a route including a link to push the wheelchair.

The information collecting unit 250 may collect the state information of the link or node included in the electronic map from the sensor 300 or the camera 400. [

The sensor 300 and the camera 400 may be installed at a certain position in the evacuation route guidance service target area. 1, the sensor 300 and the camera 400 may be installed for each major node or link.

The sensor 300 may be implemented by various sensors such as a temperature sensor, a gas sensor, a fire sensor, an electric leak sensor, and the like. The sensor 300 can detect temperature, gas leakage, fire occurrence,

The camera 400 may acquire an image of the evacuation route guidance service target area and provide the acquired image to the route guidance server 200.

The control unit 270 can control and manage the overall operation of the route guidance server 200. [ The control unit 270 may transmit the evacuation route request to the route search unit 230 to search for a suitable evacuation route for the user when the evacuation route request is received from the user terminals 100a, 100b, 100c, ..., 100n.

The control unit 270 may generate a large pizza group in consideration of the current location of the user and the walking type of the user, and may allow the route searching unit 230 to search for the same evacuation route for each large pizza group.

The control unit 270 may also change the movable pedestrian type of the corresponding node or link using the link information or the node status information collected by the information collecting unit 250. [ For example, the control unit 270 may analyze the image of the passage corresponding to the specific link and change the type of the pedestrian capable of moving the link or node to a non-passable person when a fire occurs or collapses and a person can not pass through have. The control unit 270 may reflect the changed link node information so that the path searching unit 230 may search for the evacuation path again.

2 is a flowchart illustrating an operation of the evacuation route guidance system according to the present invention.

Referring to FIG. 2, the route guidance server 200 may store the electronic map constructed for the evacuation route guidance service area (S210). The electronic map constructed in step S210 may include link node information in which a movable pedestrian type is defined for each link and each node.

Meanwhile, the user can set his pedestrian type in the evacuation route guidance app installed in the user terminals 100a, 100b, 100c, ..., 100n (S220). The pedestrian type of the user set in step S220 may be registered in the route guidance server 200. [

If a subsequent disaster occurs (S230-Y), the user can execute the evacuation route guidance application to request the evacuation route to the route guidance server 200 (S240). Of course, when a disaster occurrence message is received from the route guidance server 200 in a pushing manner, the evacuation route guidance app is automatically executed in the user terminals 100a, 100b, 100c, ..., 100n, You can also implement the request.

Next, the route guidance server 200 determines the pedestrian type of the user who made the evacuation route request (S240). In step S240, a large pizza group may be created in consideration of the current location of the user and the pedestrian type of the user, and then the type of the pedestrian to which the large pizza group belongs may be determined. Of course, if a large pizza group is not generated, the pedestrian type of the user can be determined as the pedestrian type set in step S220.

Thereafter, the route guidance server 200 can search the evacuation route suitable for the user or the pedestrian type to which the large pizza group belongs (S260). In step S260, the route guidance server 200 can search for an evacuation route composed of links and nodes to which the user belongs, from among the links and nodes included in the disaster occurrence area where the user is located when the disaster occurs, , And may calculate the evacuation time required when the user evacuates by the detected path. The route guidance server 200 preferentially searches the escape route corresponding to the shortest time or the shortest distance, but if the number of persons searched for on the same escape route is equal to or greater than a predetermined standard, the route guidance server 200 searches for a bypass route . On the other hand, when a large pizza group is created, the route guidance server 200 can search for the same evacuation route for each large pizza group.

Next, the route guidance server 200 may transmit the retrieved evacuation route to the evacuation route guidance application to guide the user to the guidance (S270). The user terminals 100a, 100b, 100c, ..., 100n can display the evacuation route on the previously downloaded map. Of course, if there is no map downloaded in advance, the route guidance server 200 may transmit the map in real time and display the evacuation route on the map. Also, according to the embodiment, it is also possible to display the evacuation route with only the arrow or only the voice.

If the state of the link or node is changed during the guidance of the user to the evacuation route (S280-Y), the route guidance server 200 changes the movable pedestrian type of the link or node, (S260). Then, steps S260 to S280 may be repeated until the user arrives at the exit.

Finally, when the user arrives at the exit (S290-Y), the route guidance server 200 and the evacuation route guidance app end the evacuation route guidance.

Embodiments of the present invention include a computer-readable medium having program instructions for performing various computer-implemented operations. The medium records a program for executing the above-described method. The medium may include program instructions, data files, data structures, etc., alone or in combination. Examples of such media include magnetic media such as hard disks, floppy disks and magnetic tape, optical recording media such as CD and DVD, programmed instructions such as floptical disk and magneto-optical media, ROM, RAM, And a hardware device configured to store and execute the program. Or such medium may be a transmission medium, such as optical or metal lines, waveguides, etc., including a carrier wave that transmits a signal specifying a program command, data structure, or the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of the right.

100a, 100b, 100c, ... , 100n: user terminal
200: Path guide server
210: Database part 230: Path search part
250: information collecting unit 270:
300: sensor
400: camera

Claims (10)

A database unit for storing an electronic map including link information or node information in which a movable pedestrian type is defined, and
If the number of persons searched by the same evacuation route is more than a predetermined standard, the user can search for the evacuation route according to the predetermined condition among the evacuation route including the movable links and nodes, A route search section for providing a bypass evacuation route to a part of the personnel having relatively high mobile ability
And an evacuation route guidance system. The method of claim 1,
An information collecting unit for collecting state information of links or nodes included in the electronic map, and
A control unit for changing the movable pedestrian type of the link or the node by reflecting the collected state information,
Further comprising:
Wherein the path search unit comprises:
The evacuation route guidance system re-searches the evacuation route reflecting the link or the node to which the movable pedestrian type has been changed. The method of claim 1,
Further comprising a control unit for grouping a plurality of users within a predetermined range in the event of a disaster to create a large pizza group,
Wherein the path search unit comprises:
Searching for an evacuation route including a movable link and nodes of the pedestrian type to which the large pizza group belongs, and providing the same evacuation route to users belonging to the large pizza group. delete 4. The method of claim 3,
Wherein the path search unit comprises:
And calculating the evacuation duration according to the searched evacuation route by applying the pedestrian type to which the user or the large pizza group belongs. Storing an electronic map including link or node information in which a movable pedestrian type is defined, and
A step of preferentially searching for an evacuation path according to a predetermined condition among the evacuation paths constituted by movable links and nodes, to which the user belongs,
If the number of persons searched for by the same evacuation route is equal to or greater than a predetermined standard, providing a bypass evacuation route to a part of the personnel having a relatively high mobile ability, taking into consideration the pedestrian type
Wherein the evacuation route guidance method comprises: The method of claim 6,
Changing the movable pedestrian type of the link or the node when the state of the link or node included in the electronic map is changed, and
Re-searching the evacuation route reflecting the link or node where the movable pedestrian type has been changed
Further comprising the steps of: The method of claim 6,
A plurality of users within a predetermined range in the event of a disaster are grouped to create a large pizza group, a search is made for an evacuation route composed of links and nodes to which the pedestrian type belonging to the large pizza group belongs, A evacuation route guidance method that provides the same evacuation route to a user. delete 9. The method of claim 8,
And calculating a required evacuation time according to the searched evacuation route by applying the pedestrian type to which the user or the large pizza group belongs.

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